diff options
| author | Kartik K. Agaram <vc@akkartik.com> | 2017-03-31 08:11:45 -0700 |
|---|---|---|
| committer | Kartik K. Agaram <vc@akkartik.com> | 2017-03-31 08:11:45 -0700 |
| commit | 860628c70a73064d53048fc095c430a0c3df6124 (patch) | |
| tree | 40e3e2442eecf89beee317c4fbf39a9f21f2ae33 | |
| parent | daa214478a7c09a996aae7141054d12a481bb392 (diff) | |
| download | mu-860628c70a73064d53048fc095c430a0c3df6124.tar.gz | |
3808 - 'length' for duplex lists
| -rw-r--r-- | 064list.mu | 11 | ||||
| -rw-r--r-- | 065duplex_list.mu | 12 | ||||
| -rw-r--r-- | html/064list.mu.html | 593 | ||||
| -rw-r--r-- | html/065duplex_list.mu.html | 926 | ||||
| -rw-r--r-- | html/edit/003-shortcuts.mu.html | 8 | ||||
| -rw-r--r-- | html/edit/012-editor-undo.mu.html | 12 |
6 files changed, 796 insertions, 766 deletions
diff --git a/064list.mu b/064list.mu index b09cca43..eb6e0dc9 100644 --- a/064list.mu +++ b/064list.mu @@ -52,10 +52,13 @@ scenario list-handling [ def length l:&:list:_elem -> result:num [ local-scope load-ingredients - return-unless l, 0 - rest:&:list:_elem <- rest l - length-of-rest:num <- length rest - result <- add length-of-rest, 1 + result <- copy 0 + { + break-unless l + result <- add result, 1 + l <- rest l + loop + } ] # insert 'x' after 'in' diff --git a/065duplex_list.mu b/065duplex_list.mu index fa3527fe..58b5468e 100644 --- a/065duplex_list.mu +++ b/065duplex_list.mu @@ -83,6 +83,18 @@ scenario duplex-list-handling [ ] ] +def length l:&:duplex-list:_elem -> result:num [ + local-scope + load-ingredients + result <- copy 0 + { + break-unless l + result <- add result, 1 + l <- next l + loop + } +] + # insert 'x' after 'in' def insert x:_elem, in:&:duplex-list:_elem -> in:&:duplex-list:_elem [ local-scope diff --git a/html/064list.mu.html b/html/064list.mu.html index 7369d305..35cd4749 100644 --- a/html/064list.mu.html +++ b/html/064list.mu.html @@ -114,303 +114,306 @@ if ('onhashchange' in window) { <span id="L52" class="LineNr"> 52 </span><span class="muRecipe">def</span> length l:&:list:_elem<span class="muRecipe"> -> </span>result:num [ <span id="L53" class="LineNr"> 53 </span> <span class="Constant">local-scope</span> <span id="L54" class="LineNr"> 54 </span> <span class="Constant">load-ingredients</span> -<span id="L55" class="LineNr"> 55 </span> <span class="muControl">return-unless</span> l,<span class="Constant"> 0</span> -<span id="L56" class="LineNr"> 56 </span> <a href='064list.mu.html#L25'>rest</a>:&:list:_elem <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> l -<span id="L57" class="LineNr"> 57 </span> length-of-rest:num <span class="Special"><-</span> length <a href='064list.mu.html#L25'>rest</a> -<span id="L58" class="LineNr"> 58 </span> result <span class="Special"><-</span> add length-of-rest,<span class="Constant"> 1</span> -<span id="L59" class="LineNr"> 59 </span>] -<span id="L60" class="LineNr"> 60 </span> -<span id="L61" class="LineNr"> 61 </span><span class="Comment"># insert 'x' after 'in'</span> -<span id="L62" class="LineNr"> 62 </span><span class="muRecipe">def</span> insert x:_elem, in:&:list:_elem<span class="muRecipe"> -> </span>in:&:list:_elem [ -<span id="L63" class="LineNr"> 63 </span> <span class="Constant">local-scope</span> -<span id="L64" class="LineNr"> 64 </span> <span class="Constant">load-ingredients</span> -<span id="L65" class="LineNr"> 65 </span> new-node:&:list:_elem <span class="Special"><-</span> new <span class="Delimiter">{</span>(list _elem): type<span class="Delimiter">}</span> -<span id="L66" class="LineNr"> 66 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant">value:offset</span>, x -<span id="L67" class="LineNr"> 67 </span> next-node:&:list:_elem <span class="Special"><-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span> -<span id="L68" class="LineNr"> 68 </span> *in <span class="Special"><-</span> put *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, new-node -<span id="L69" class="LineNr"> 69 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node -<span id="L70" class="LineNr"> 70 </span>] -<span id="L71" class="LineNr"> 71 </span> -<span id="L72" class="LineNr"> 72 </span><span class="muScenario">scenario</span> inserting-into-list [ -<span id="L73" class="LineNr"> 73 </span> <span class="Constant">local-scope</span> -<span id="L74" class="LineNr"> 74 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L75" class="LineNr"> 75 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L76" class="LineNr"> 76 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L77" class="LineNr"> 77 </span> run [ -<span id="L78" class="LineNr"> 78 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list <span class="Comment"># inside list</span> -<span id="L79" class="LineNr"> 79 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list2 -<span id="L80" class="LineNr"> 80 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure</span> -<span id="L81" class="LineNr"> 81 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list -<span id="L82" class="LineNr"> 82 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L83" class="LineNr"> 83 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L84" class="LineNr"> 84 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L85" class="LineNr"> 85 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L86" class="LineNr"> 86 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L87" class="LineNr"> 87 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L88" class="LineNr"> 88 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L89" class="LineNr"> 89 </span> ] -<span id="L90" class="LineNr"> 90 </span> memory-should-contain [ -<span id="L91" class="LineNr"> 91 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> -<span id="L92" class="LineNr"> 92 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L93" class="LineNr"> 93 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> -<span id="L94" class="LineNr"> 94 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L95" class="LineNr"> 95 </span> ] -<span id="L96" class="LineNr"> 96 </span>] -<span id="L97" class="LineNr"> 97 </span> -<span id="L98" class="LineNr"> 98 </span><span class="muScenario">scenario</span> inserting-at-end-of-list [ -<span id="L99" class="LineNr"> 99 </span> <span class="Constant">local-scope</span> -<span id="L100" class="LineNr">100 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L101" class="LineNr">101 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L102" class="LineNr">102 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L103" class="LineNr">103 </span> run [ -<span id="L104" class="LineNr">104 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list <span class="Comment"># inside list</span> -<span id="L105" class="LineNr">105 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 <span class="Comment"># now at end of list</span> -<span id="L106" class="LineNr">106 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list2 -<span id="L107" class="LineNr">107 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L108" class="LineNr">108 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list -<span id="L109" class="LineNr">109 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L110" class="LineNr">110 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L111" class="LineNr">111 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L112" class="LineNr">112 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L113" class="LineNr">113 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L114" class="LineNr">114 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L115" class="LineNr">115 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L116" class="LineNr">116 </span> ] -<span id="L117" class="LineNr">117 </span> memory-should-contain [ -<span id="L118" class="LineNr">118 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> -<span id="L119" class="LineNr">119 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L120" class="LineNr">120 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L121" class="LineNr">121 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> -<span id="L122" class="LineNr">122 </span> ] -<span id="L123" class="LineNr">123 </span>] -<span id="L124" class="LineNr">124 </span> -<span id="L125" class="LineNr">125 </span><span class="muScenario">scenario</span> inserting-after-start-of-list [ -<span id="L126" class="LineNr">126 </span> <span class="Constant">local-scope</span> -<span id="L127" class="LineNr">127 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L128" class="LineNr">128 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L129" class="LineNr">129 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L130" class="LineNr">130 </span> run [ -<span id="L131" class="LineNr">131 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list -<span id="L132" class="LineNr">132 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L133" class="LineNr">133 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> copy list -<span id="L134" class="LineNr">134 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L135" class="LineNr">135 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L136" class="LineNr">136 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L137" class="LineNr">137 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L138" class="LineNr">138 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L139" class="LineNr">139 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L140" class="LineNr">140 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L141" class="LineNr">141 </span> ] -<span id="L142" class="LineNr">142 </span> memory-should-contain [ -<span id="L143" class="LineNr">143 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> -<span id="L144" class="LineNr">144 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> -<span id="L145" class="LineNr">145 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L146" class="LineNr">146 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L147" class="LineNr">147 </span> ] -<span id="L148" class="LineNr">148 </span>] -<span id="L149" class="LineNr">149 </span> -<span id="L150" class="LineNr">150 </span><span class="Comment"># remove 'x' from its surrounding list 'in'</span> -<span id="L151" class="LineNr">151 </span><span class="Comment">#</span> -<span id="L152" class="LineNr">152 </span><span class="Comment"># Returns null if and only if list is empty. Beware: in that case any other</span> -<span id="L153" class="LineNr">153 </span><span class="Comment"># pointers to the head are now invalid.</span> -<span id="L154" class="LineNr">154 </span><span class="muRecipe">def</span> remove x:&:list:_elem/contained-in:in, in:&:list:_elem<span class="muRecipe"> -> </span>in:&:list:_elem [ -<span id="L155" class="LineNr">155 </span> <span class="Constant">local-scope</span> -<span id="L156" class="LineNr">156 </span> <span class="Constant">load-ingredients</span> -<span id="L157" class="LineNr">157 </span> <span class="Comment"># if 'x' is null, return</span> -<span id="L158" class="LineNr">158 </span> <span class="muControl">return-unless</span> x -<span id="L159" class="LineNr">159 </span> next-node:&:list:_elem <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> x -<span id="L160" class="LineNr">160 </span> <span class="Comment"># clear next pointer of 'x'</span> -<span id="L161" class="LineNr">161 </span> *x <span class="Special"><-</span> put *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>,<span class="Constant"> 0</span> -<span id="L162" class="LineNr">162 </span> <span class="Comment"># if 'x' is at the head of 'in', return the new head</span> -<span id="L163" class="LineNr">163 </span> at-head?:bool <span class="Special"><-</span> equal x, in -<span id="L164" class="LineNr">164 </span> <span class="muControl">return-if</span> at-head?, next-node -<span id="L165" class="LineNr">165 </span> <span class="Comment"># compute prev-node</span> -<span id="L166" class="LineNr">166 </span> prev-node:&:list:_elem <span class="Special"><-</span> copy in -<span id="L167" class="LineNr">167 </span> curr:&:list:_elem <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> prev-node -<span id="L168" class="LineNr">168 </span> <span class="Delimiter">{</span> -<span id="L169" class="LineNr">169 </span> <span class="Conceal">¦</span> <span class="muControl">return-unless</span> curr -<span id="L170" class="LineNr">170 </span> <span class="Conceal">¦</span> found?:bool <span class="Special"><-</span> equal curr, x -<span id="L171" class="LineNr">171 </span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> found? -<span id="L172" class="LineNr">172 </span> <span class="Conceal">¦</span> prev-node <span class="Special"><-</span> copy curr -<span id="L173" class="LineNr">173 </span> <span class="Conceal">¦</span> curr <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> curr -<span id="L174" class="LineNr">174 </span> <span class="Delimiter">}</span> -<span id="L175" class="LineNr">175 </span> <span class="Comment"># set its next pointer to skip 'x'</span> -<span id="L176" class="LineNr">176 </span> *prev-node <span class="Special"><-</span> put *prev-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node -<span id="L177" class="LineNr">177 </span>] -<span id="L178" class="LineNr">178 </span> -<span id="L179" class="LineNr">179 </span><span class="muScenario">scenario</span> removing-from-list [ -<span id="L180" class="LineNr">180 </span> <span class="Constant">local-scope</span> -<span id="L181" class="LineNr">181 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L182" class="LineNr">182 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L183" class="LineNr">183 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L184" class="LineNr">184 </span> run [ -<span id="L185" class="LineNr">185 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list <span class="Comment"># second element</span> -<span id="L186" class="LineNr">186 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list2, list -<span id="L187" class="LineNr">187 </span> <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list2,<span class="Constant"> 0</span> -<span id="L188" class="LineNr">188 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L189" class="LineNr">189 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list -<span id="L190" class="LineNr">190 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L191" class="LineNr">191 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L192" class="LineNr">192 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L193" class="LineNr">193 </span> <span class="Conceal">¦</span> 20:&:list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L194" class="LineNr">194 </span> ] -<span id="L195" class="LineNr">195 </span> memory-should-contain [ -<span id="L196" class="LineNr">196 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># remove returned non-null</span> -<span id="L197" class="LineNr">197 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next, skipping deleted element</span> -<span id="L198" class="LineNr">198 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L199" class="LineNr">199 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> -<span id="L200" class="LineNr">200 </span> ] -<span id="L201" class="LineNr">201 </span>] -<span id="L202" class="LineNr">202 </span> -<span id="L203" class="LineNr">203 </span><span class="muScenario">scenario</span> removing-from-start-of-list [ -<span id="L204" class="LineNr">204 </span> <span class="Constant">local-scope</span> -<span id="L205" class="LineNr">205 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L206" class="LineNr">206 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L207" class="LineNr">207 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L208" class="LineNr">208 </span> run [ -<span id="L209" class="LineNr">209 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list, list -<span id="L210" class="LineNr">210 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L211" class="LineNr">211 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> copy list -<span id="L212" class="LineNr">212 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L213" class="LineNr">213 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L214" class="LineNr">214 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L215" class="LineNr">215 </span> <span class="Conceal">¦</span> 20:&:list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L216" class="LineNr">216 </span> ] -<span id="L217" class="LineNr">217 </span> memory-should-contain [ -<span id="L218" class="LineNr">218 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 4</span> <span class="Comment"># scanning next, skipping deleted element</span> -<span id="L219" class="LineNr">219 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L220" class="LineNr">220 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> -<span id="L221" class="LineNr">221 </span> ] -<span id="L222" class="LineNr">222 </span>] -<span id="L223" class="LineNr">223 </span> -<span id="L224" class="LineNr">224 </span><span class="muScenario">scenario</span> removing-from-end-of-list [ -<span id="L225" class="LineNr">225 </span> <span class="Constant">local-scope</span> -<span id="L226" class="LineNr">226 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L227" class="LineNr">227 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L228" class="LineNr">228 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L229" class="LineNr">229 </span> run [ -<span id="L230" class="LineNr">230 </span> <span class="Conceal">¦</span> <span class="Comment"># delete last element</span> -<span id="L231" class="LineNr">231 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list -<span id="L232" class="LineNr">232 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L233" class="LineNr">233 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list2, list -<span id="L234" class="LineNr">234 </span> <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list2,<span class="Constant"> 0</span> -<span id="L235" class="LineNr">235 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L236" class="LineNr">236 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list -<span id="L237" class="LineNr">237 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L238" class="LineNr">238 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L239" class="LineNr">239 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L240" class="LineNr">240 </span> <span class="Conceal">¦</span> 20:&:list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 -<span id="L241" class="LineNr">241 </span> ] -<span id="L242" class="LineNr">242 </span> memory-should-contain [ -<span id="L243" class="LineNr">243 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># remove returned non-null</span> -<span id="L244" class="LineNr">244 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next, skipping deleted element</span> -<span id="L245" class="LineNr">245 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L246" class="LineNr">246 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> -<span id="L247" class="LineNr">247 </span> ] -<span id="L248" class="LineNr">248 </span>] -<span id="L249" class="LineNr">249 </span> -<span id="L250" class="LineNr">250 </span><span class="muScenario">scenario</span> removing-from-singleton-list [ -<span id="L251" class="LineNr">251 </span> <span class="Constant">local-scope</span> -<span id="L252" class="LineNr">252 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L253" class="LineNr">253 </span> run [ -<span id="L254" class="LineNr">254 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list, list -<span id="L255" class="LineNr">255 </span> <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span> <span class="Special"><-</span> copy list -<span id="L256" class="LineNr">256 </span> ] -<span id="L257" class="LineNr">257 </span> memory-should-contain [ -<span id="L258" class="LineNr">258 </span> <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># back to an empty list</span> +<span id="L55" class="LineNr"> 55 </span> result <span class="Special"><-</span> copy<span class="Constant"> 0</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">{</span> +<span id="L57" class="LineNr"> 57 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> l +<span id="L58" class="LineNr"> 58 </span> <span class="Conceal">¦</span> result <span class="Special"><-</span> add result,<span class="Constant"> 1</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Conceal">¦</span> l <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> l +<span id="L60" class="LineNr"> 60 </span> <span class="Conceal">¦</span> <span class="muControl">loop</span> +<span id="L61" class="LineNr"> 61 </span> <span class="Delimiter">}</span> +<span id="L62" class="LineNr"> 62 </span>] +<span id="L63" class="LineNr"> 63 </span> +<span id="L64" class="LineNr"> 64 </span><span class="Comment"># insert 'x' after 'in'</span> +<span id="L65" class="LineNr"> 65 </span><span class="muRecipe">def</span> insert x:_elem, in:&:list:_elem<span class="muRecipe"> -> </span>in:&:list:_elem [ +<span id="L66" class="LineNr"> 66 </span> <span class="Constant">local-scope</span> +<span id="L67" class="LineNr"> 67 </span> <span class="Constant">load-ingredients</span> +<span id="L68" class="LineNr"> 68 </span> new-node:&:list:_elem <span class="Special"><-</span> new <span class="Delimiter">{</span>(list _elem): type<span class="Delimiter">}</span> +<span id="L69" class="LineNr"> 69 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant">value:offset</span>, x +<span id="L70" class="LineNr"> 70 </span> next-node:&:list:_elem <span class="Special"><-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span> +<span id="L71" class="LineNr"> 71 </span> *in <span class="Special"><-</span> put *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, new-node +<span id="L72" class="LineNr"> 72 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node +<span id="L73" class="LineNr"> 73 </span>] +<span id="L74" class="LineNr"> 74 </span> +<span id="L75" class="LineNr"> 75 </span><span class="muScenario">scenario</span> inserting-into-list [ +<span id="L76" class="LineNr"> 76 </span> <span class="Constant">local-scope</span> +<span id="L77" class="LineNr"> 77 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L78" class="LineNr"> 78 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L79" class="LineNr"> 79 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L80" class="LineNr"> 80 </span> run [ +<span id="L81" class="LineNr"> 81 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list <span class="Comment"># inside list</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list2 +<span id="L83" class="LineNr"> 83 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list +<span id="L85" class="LineNr"> 85 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L86" class="LineNr"> 86 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L87" class="LineNr"> 87 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L88" class="LineNr"> 88 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L89" class="LineNr"> 89 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L90" class="LineNr"> 90 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L91" class="LineNr"> 91 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L92" class="LineNr"> 92 </span> ] +<span id="L93" class="LineNr"> 93 </span> memory-should-contain [ +<span id="L94" class="LineNr"> 94 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L98" class="LineNr"> 98 </span> ] +<span id="L99" class="LineNr"> 99 </span>] +<span id="L100" class="LineNr">100 </span> +<span id="L101" class="LineNr">101 </span><span class="muScenario">scenario</span> inserting-at-end-of-list [ +<span id="L102" class="LineNr">102 </span> <span class="Constant">local-scope</span> +<span id="L103" class="LineNr">103 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L104" class="LineNr">104 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L105" class="LineNr">105 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L106" class="LineNr">106 </span> run [ +<span id="L107" class="LineNr">107 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list <span class="Comment"># inside list</span> +<span id="L108" class="LineNr">108 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 <span class="Comment"># now at end of list</span> +<span id="L109" class="LineNr">109 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list2 +<span id="L110" class="LineNr">110 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L111" class="LineNr">111 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list +<span id="L112" class="LineNr">112 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L113" class="LineNr">113 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L114" class="LineNr">114 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L115" class="LineNr">115 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L116" class="LineNr">116 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L117" class="LineNr">117 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L118" class="LineNr">118 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L119" class="LineNr">119 </span> ] +<span id="L120" class="LineNr">120 </span> memory-should-contain [ +<span id="L121" class="LineNr">121 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> +<span id="L122" class="LineNr">122 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L123" class="LineNr">123 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L124" class="LineNr">124 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> +<span id="L125" class="LineNr">125 </span> ] +<span id="L126" class="LineNr">126 </span>] +<span id="L127" class="LineNr">127 </span> +<span id="L128" class="LineNr">128 </span><span class="muScenario">scenario</span> inserting-after-start-of-list [ +<span id="L129" class="LineNr">129 </span> <span class="Constant">local-scope</span> +<span id="L130" class="LineNr">130 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L131" class="LineNr">131 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L132" class="LineNr">132 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L133" class="LineNr">133 </span> run [ +<span id="L134" class="LineNr">134 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list +<span id="L135" class="LineNr">135 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L136" class="LineNr">136 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> copy list +<span id="L137" class="LineNr">137 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L138" class="LineNr">138 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L139" class="LineNr">139 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L140" class="LineNr">140 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L141" class="LineNr">141 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L142" class="LineNr">142 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L143" class="LineNr">143 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L144" class="LineNr">144 </span> ] +<span id="L145" class="LineNr">145 </span> memory-should-contain [ +<span id="L146" class="LineNr">146 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> +<span id="L147" class="LineNr">147 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> +<span id="L148" class="LineNr">148 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L149" class="LineNr">149 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L150" class="LineNr">150 </span> ] +<span id="L151" class="LineNr">151 </span>] +<span id="L152" class="LineNr">152 </span> +<span id="L153" class="LineNr">153 </span><span class="Comment"># remove 'x' from its surrounding list 'in'</span> +<span id="L154" class="LineNr">154 </span><span class="Comment">#</span> +<span id="L155" class="LineNr">155 </span><span class="Comment"># Returns null if and only if list is empty. Beware: in that case any other</span> +<span id="L156" class="LineNr">156 </span><span class="Comment"># pointers to the head are now invalid.</span> +<span id="L157" class="LineNr">157 </span><span class="muRecipe">def</span> remove x:&:list:_elem/contained-in:in, in:&:list:_elem<span class="muRecipe"> -> </span>in:&:list:_elem [ +<span id="L158" class="LineNr">158 </span> <span class="Constant">local-scope</span> +<span id="L159" class="LineNr">159 </span> <span class="Constant">load-ingredients</span> +<span id="L160" class="LineNr">160 </span> <span class="Comment"># if 'x' is null, return</span> +<span id="L161" class="LineNr">161 </span> <span class="muControl">return-unless</span> x +<span id="L162" class="LineNr">162 </span> next-node:&:list:_elem <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> x +<span id="L163" class="LineNr">163 </span> <span class="Comment"># clear next pointer of 'x'</span> +<span id="L164" class="LineNr">164 </span> *x <span class="Special"><-</span> put *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>,<span class="Constant"> 0</span> +<span id="L165" class="LineNr">165 </span> <span class="Comment"># if 'x' is at the head of 'in', return the new head</span> +<span id="L166" class="LineNr">166 </span> at-head?:bool <span class="Special"><-</span> equal x, in +<span id="L167" class="LineNr">167 </span> <span class="muControl">return-if</span> at-head?, next-node +<span id="L168" class="LineNr">168 </span> <span class="Comment"># compute prev-node</span> +<span id="L169" class="LineNr">169 </span> prev-node:&:list:_elem <span class="Special"><-</span> copy in +<span id="L170" class="LineNr">170 </span> curr:&:list:_elem <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> prev-node +<span id="L171" class="LineNr">171 </span> <span class="Delimiter">{</span> +<span id="L172" class="LineNr">172 </span> <span class="Conceal">¦</span> <span class="muControl">return-unless</span> curr +<span id="L173" class="LineNr">173 </span> <span class="Conceal">¦</span> found?:bool <span class="Special"><-</span> equal curr, x +<span id="L174" class="LineNr">174 </span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> found? +<span id="L175" class="LineNr">175 </span> <span class="Conceal">¦</span> prev-node <span class="Special"><-</span> copy curr +<span id="L176" class="LineNr">176 </span> <span class="Conceal">¦</span> curr <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> curr +<span id="L177" class="LineNr">177 </span> <span class="Delimiter">}</span> +<span id="L178" class="LineNr">178 </span> <span class="Comment"># set its next pointer to skip 'x'</span> +<span id="L179" class="LineNr">179 </span> *prev-node <span class="Special"><-</span> put *prev-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node +<span id="L180" class="LineNr">180 </span>] +<span id="L181" class="LineNr">181 </span> +<span id="L182" class="LineNr">182 </span><span class="muScenario">scenario</span> removing-from-list [ +<span id="L183" class="LineNr">183 </span> <span class="Constant">local-scope</span> +<span id="L184" class="LineNr">184 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L185" class="LineNr">185 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L186" class="LineNr">186 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L187" class="LineNr">187 </span> run [ +<span id="L188" class="LineNr">188 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list <span class="Comment"># second element</span> +<span id="L189" class="LineNr">189 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list2, list +<span id="L190" class="LineNr">190 </span> <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list2,<span class="Constant"> 0</span> +<span id="L191" class="LineNr">191 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L192" class="LineNr">192 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list +<span id="L193" class="LineNr">193 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L194" class="LineNr">194 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L195" class="LineNr">195 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L196" class="LineNr">196 </span> <span class="Conceal">¦</span> 20:&:list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L197" class="LineNr">197 </span> ] +<span id="L198" class="LineNr">198 </span> memory-should-contain [ +<span id="L199" class="LineNr">199 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># remove returned non-null</span> +<span id="L200" class="LineNr">200 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next, skipping deleted element</span> +<span id="L201" class="LineNr">201 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L202" class="LineNr">202 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> +<span id="L203" class="LineNr">203 </span> ] +<span id="L204" class="LineNr">204 </span>] +<span id="L205" class="LineNr">205 </span> +<span id="L206" class="LineNr">206 </span><span class="muScenario">scenario</span> removing-from-start-of-list [ +<span id="L207" class="LineNr">207 </span> <span class="Constant">local-scope</span> +<span id="L208" class="LineNr">208 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L209" class="LineNr">209 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L210" class="LineNr">210 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L211" class="LineNr">211 </span> run [ +<span id="L212" class="LineNr">212 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list, list +<span id="L213" class="LineNr">213 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L214" class="LineNr">214 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> copy list +<span id="L215" class="LineNr">215 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L216" class="LineNr">216 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L217" class="LineNr">217 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L218" class="LineNr">218 </span> <span class="Conceal">¦</span> 20:&:list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L219" class="LineNr">219 </span> ] +<span id="L220" class="LineNr">220 </span> memory-should-contain [ +<span id="L221" class="LineNr">221 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 4</span> <span class="Comment"># scanning next, skipping deleted element</span> +<span id="L222" class="LineNr">222 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L223" class="LineNr">223 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> +<span id="L224" class="LineNr">224 </span> ] +<span id="L225" class="LineNr">225 </span>] +<span id="L226" class="LineNr">226 </span> +<span id="L227" class="LineNr">227 </span><span class="muScenario">scenario</span> removing-from-end-of-list [ +<span id="L228" class="LineNr">228 </span> <span class="Constant">local-scope</span> +<span id="L229" class="LineNr">229 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L230" class="LineNr">230 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L231" class="LineNr">231 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L232" class="LineNr">232 </span> run [ +<span id="L233" class="LineNr">233 </span> <span class="Conceal">¦</span> <span class="Comment"># delete last element</span> +<span id="L234" class="LineNr">234 </span> <span class="Conceal">¦</span> list2:&:list:char <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list +<span id="L235" class="LineNr">235 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L236" class="LineNr">236 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list2, list +<span id="L237" class="LineNr">237 </span> <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list2,<span class="Constant"> 0</span> +<span id="L238" class="LineNr">238 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L239" class="LineNr">239 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list +<span id="L240" class="LineNr">240 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L241" class="LineNr">241 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L242" class="LineNr">242 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L243" class="LineNr">243 </span> <span class="Conceal">¦</span> 20:&:list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list2 +<span id="L244" class="LineNr">244 </span> ] +<span id="L245" class="LineNr">245 </span> memory-should-contain [ +<span id="L246" class="LineNr">246 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># remove returned non-null</span> +<span id="L247" class="LineNr">247 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next, skipping deleted element</span> +<span id="L248" class="LineNr">248 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L249" class="LineNr">249 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> +<span id="L250" class="LineNr">250 </span> ] +<span id="L251" class="LineNr">251 </span>] +<span id="L252" class="LineNr">252 </span> +<span id="L253" class="LineNr">253 </span><span class="muScenario">scenario</span> removing-from-singleton-list [ +<span id="L254" class="LineNr">254 </span> <span class="Constant">local-scope</span> +<span id="L255" class="LineNr">255 </span> list:&:list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L256" class="LineNr">256 </span> run [ +<span id="L257" class="LineNr">257 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list, list +<span id="L258" class="LineNr">258 </span> <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span> <span class="Special"><-</span> copy list <span id="L259" class="LineNr">259 </span> ] -<span id="L260" class="LineNr">260 </span>] -<span id="L261" class="LineNr">261 </span> -<span id="L262" class="LineNr">262 </span><span class="Comment"># reverse the elements of a list</span> -<span id="L263" class="LineNr">263 </span><span class="Comment"># (contributed by Caleb Couch)</span> -<span id="L264" class="LineNr">264 </span><span class="muRecipe">def</span> reverse list:&:list:_elem temp:&:list:_elem/contained-in:result<span class="muRecipe"> -> </span>result:&:list:_elem [ -<span id="L265" class="LineNr">265 </span> <span class="Constant">local-scope</span> -<span id="L266" class="LineNr">266 </span> <span class="Constant">load-ingredients</span> -<span id="L267" class="LineNr">267 </span> <span class="muControl">return-unless</span> list, temp -<span id="L268" class="LineNr">268 </span> object:_elem <span class="Special"><-</span> first, list -<span id="L269" class="LineNr">269 </span> list <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list -<span id="L270" class="LineNr">270 </span> temp <span class="Special"><-</span> push object, temp -<span id="L271" class="LineNr">271 </span> result <span class="Special"><-</span> reverse list, temp -<span id="L272" class="LineNr">272 </span>] -<span id="L273" class="LineNr">273 </span> -<span id="L274" class="LineNr">274 </span><span class="muScenario">scenario</span> reverse-list [ -<span id="L275" class="LineNr">275 </span> <span class="Constant">local-scope</span> -<span id="L276" class="LineNr">276 </span> list:&:list:number <span class="Special"><-</span> push<span class="Constant"> 1</span>,<span class="Constant"> 0</span> -<span id="L277" class="LineNr">277 </span> list <span class="Special"><-</span> push<span class="Constant"> 2</span>, list -<span id="L278" class="LineNr">278 </span> list <span class="Special"><-</span> push<span class="Constant"> 3</span>, list -<span id="L279" class="LineNr">279 </span> run [ -<span id="L280" class="LineNr">280 </span> <span class="Conceal">¦</span> stash <span class="Constant">[list:]</span>, list -<span id="L281" class="LineNr">281 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> reverse list -<span id="L282" class="LineNr">282 </span> <span class="Conceal">¦</span> stash <span class="Constant">[reversed:]</span>, list -<span id="L283" class="LineNr">283 </span> ] -<span id="L284" class="LineNr">284 </span> trace-should-contain [ -<span id="L285" class="LineNr">285 </span> <span class="Conceal">¦</span> app: list:<span class="Constant"> 3</span><span class="muRecipe"> -> </span>2<span class="muRecipe"> -> </span>1 -<span id="L286" class="LineNr">286 </span> <span class="Conceal">¦</span> app: reversed:<span class="Constant"> 1</span><span class="muRecipe"> -> </span>2<span class="muRecipe"> -> </span>3 -<span id="L287" class="LineNr">287 </span> ] -<span id="L288" class="LineNr">288 </span>] -<span id="L289" class="LineNr">289 </span> -<span id="L290" class="LineNr">290 </span><span class="muRecipe">def</span> to-text in:&:list:_elem<span class="muRecipe"> -> </span>result:text [ -<span id="L291" class="LineNr">291 </span> <span class="Constant">local-scope</span> -<span id="L292" class="LineNr">292 </span> <span class="Constant">load-ingredients</span> -<span id="L293" class="LineNr">293 </span> buf:&:<a href='061text.mu.html#L127'>buffer</a> <span class="Special"><-</span> <a href='061text.mu.html#L132'>new-buffer</a><span class="Constant"> 80</span> -<span id="L294" class="LineNr">294 </span> buf <span class="Special"><-</span> <a href='064list.mu.html#L307'>to-buffer</a> in, buf -<span id="L295" class="LineNr">295 </span> result <span class="Special"><-</span> <a href='061text.mu.html#L329'>buffer-to-array</a> buf -<span id="L296" class="LineNr">296 </span>] -<span id="L297" class="LineNr">297 </span> -<span id="L298" class="LineNr">298 </span><span class="Comment"># variant of 'to-text' which stops printing after a few elements (and so is robust to cycles)</span> -<span id="L299" class="LineNr">299 </span><span class="muRecipe">def</span> to-text-line in:&:list:_elem<span class="muRecipe"> -> </span>result:text [ -<span id="L300" class="LineNr">300 </span> <span class="Constant">local-scope</span> -<span id="L301" class="LineNr">301 </span> <span class="Constant">load-ingredients</span> -<span id="L302" class="LineNr">302 </span> buf:&:<a href='061text.mu.html#L127'>buffer</a> <span class="Special"><-</span> <a href='061text.mu.html#L132'>new-buffer</a><span class="Constant"> 80</span> -<span id="L303" class="LineNr">303 </span> buf <span class="Special"><-</span> <a href='064list.mu.html#L307'>to-buffer</a> in, buf,<span class="Constant"> 6</span> <span class="Comment"># max elements to display</span> -<span id="L304" class="LineNr">304 </span> result <span class="Special"><-</span> <a href='061text.mu.html#L329'>buffer-to-array</a> buf -<span id="L305" class="LineNr">305 </span>] -<span id="L306" class="LineNr">306 </span> -<span id="L307" class="LineNr">307 </span><span class="muRecipe">def</span> <a href='064list.mu.html#L307'>to-buffer</a> in:&:list:_elem, buf:&:<a href='061text.mu.html#L127'>buffer</a><span class="muRecipe"> -> </span>buf:&:<a href='061text.mu.html#L127'>buffer</a> [ -<span id="L308" class="LineNr">308 </span> <span class="Constant">local-scope</span> -<span id="L309" class="LineNr">309 </span> <span class="Constant">load-ingredients</span> -<span id="L310" class="LineNr">310 </span> <span class="Delimiter">{</span> -<span id="L311" class="LineNr">311 </span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> in -<span id="L312" class="LineNr">312 </span> <span class="Conceal">¦</span> buf <span class="Special"><-</span> append buf, <span class="Constant">[[]</span>] -<span id="L313" class="LineNr">313 </span> <span class="Conceal">¦</span> <span class="muControl">return</span> -<span id="L314" class="LineNr">314 </span> <span class="Delimiter">}</span> -<span id="L315" class="LineNr">315 </span> <span class="Comment"># append in.value to buf</span> -<span id="L316" class="LineNr">316 </span> val:_elem <span class="Special"><-</span> get *in, <span class="Constant">value:offset</span> -<span id="L317" class="LineNr">317 </span> buf <span class="Special"><-</span> append buf, val -<span id="L318" class="LineNr">318 </span> <span class="Comment"># now prepare next</span> -<span id="L319" class="LineNr">319 </span> <a href='065duplex_list.mu.html#L29'>next</a>:&:list:_elem <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> in -<span id="L320" class="LineNr">320 </span> nextn:num <span class="Special"><-</span> copy <a href='065duplex_list.mu.html#L29'>next</a> -<span id="L321" class="LineNr">321 </span> <span class="muControl">return-unless</span> <a href='065duplex_list.mu.html#L29'>next</a> -<span id="L322" class="LineNr">322 </span> buf <span class="Special"><-</span> append buf, <span class="Constant">[ -> ]</span> -<span id="L323" class="LineNr">323 </span> <span class="Comment"># and recurse</span> -<span id="L324" class="LineNr">324 </span> remaining:num, optional-ingredient-found?:bool <span class="Special"><-</span> <span class="Constant">next-ingredient</span> -<span id="L325" class="LineNr">325 </span> <span class="Delimiter">{</span> -<span id="L326" class="LineNr">326 </span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> optional-ingredient-found? -<span id="L327" class="LineNr">327 </span> <span class="Conceal">¦</span> <span class="Comment"># unlimited recursion</span> -<span id="L328" class="LineNr">328 </span> <span class="Conceal">¦</span> buf <span class="Special"><-</span> <a href='064list.mu.html#L307'>to-buffer</a> <a href='065duplex_list.mu.html#L29'>next</a>, buf -<span id="L329" class="LineNr">329 </span> <span class="Conceal">¦</span> <span class="muControl">return</span> -<span id="L330" class="LineNr">330 </span> <span class="Delimiter">}</span> -<span id="L331" class="LineNr">331 </span> <span class="Delimiter">{</span> -<span id="L332" class="LineNr">332 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> remaining -<span id="L333" class="LineNr">333 </span> <span class="Conceal">¦</span> <span class="Comment"># limited recursion</span> -<span id="L334" class="LineNr">334 </span> <span class="Conceal">¦</span> remaining <span class="Special"><-</span> subtract remaining,<span class="Constant"> 1</span> -<span id="L335" class="LineNr">335 </span> <span class="Conceal">¦</span> buf <span class="Special"><-</span> <a href='064list.mu.html#L307'>to-buffer</a> <a href='065duplex_list.mu.html#L29'>next</a>, buf, remaining -<span id="L336" class="LineNr">336 </span> <span class="Conceal">¦</span> <span class="muControl">return</span> -<span id="L337" class="LineNr">337 </span> <span class="Delimiter">}</span> -<span id="L338" class="LineNr">338 </span> <span class="Comment"># past recursion depth; insert ellipses and stop</span> -<span id="L339" class="LineNr">339 </span> append buf, <span class="Constant">[...]</span> -<span id="L340" class="LineNr">340 </span>] -<span id="L341" class="LineNr">341 </span> -<span id="L342" class="LineNr">342 </span><span class="muScenario">scenario</span> stash-empty-list [ -<span id="L343" class="LineNr">343 </span> <span class="Constant">local-scope</span> -<span id="L344" class="LineNr">344 </span> x:&:list:num <span class="Special"><-</span> copy<span class="Constant"> 0</span> -<span id="L345" class="LineNr">345 </span> run [ -<span id="L346" class="LineNr">346 </span> <span class="Conceal">¦</span> stash x -<span id="L347" class="LineNr">347 </span> ] -<span id="L348" class="LineNr">348 </span> trace-should-contain [ -<span id="L349" class="LineNr">349 </span> <span class="Conceal">¦</span> app: <span class="Constant">[]</span> +<span id="L260" class="LineNr">260 </span> memory-should-contain [ +<span id="L261" class="LineNr">261 </span> <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># back to an empty list</span> +<span id="L262" class="LineNr">262 </span> ] +<span id="L263" class="LineNr">263 </span>] +<span id="L264" class="LineNr">264 </span> +<span id="L265" class="LineNr">265 </span><span class="Comment"># reverse the elements of a list</span> +<span id="L266" class="LineNr">266 </span><span class="Comment"># (contributed by Caleb Couch)</span> +<span id="L267" class="LineNr">267 </span><span class="muRecipe">def</span> reverse list:&:list:_elem temp:&:list:_elem/contained-in:result<span class="muRecipe"> -> </span>result:&:list:_elem [ +<span id="L268" class="LineNr">268 </span> <span class="Constant">local-scope</span> +<span id="L269" class="LineNr">269 </span> <span class="Constant">load-ingredients</span> +<span id="L270" class="LineNr">270 </span> <span class="muControl">return-unless</span> list, temp +<span id="L271" class="LineNr">271 </span> object:_elem <span class="Special"><-</span> first, list +<span id="L272" class="LineNr">272 </span> list <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> list +<span id="L273" class="LineNr">273 </span> temp <span class="Special"><-</span> push object, temp +<span id="L274" class="LineNr">274 </span> result <span class="Special"><-</span> reverse list, temp +<span id="L275" class="LineNr">275 </span>] +<span id="L276" class="LineNr">276 </span> +<span id="L277" class="LineNr">277 </span><span class="muScenario">scenario</span> reverse-list [ +<span id="L278" class="LineNr">278 </span> <span class="Constant">local-scope</span> +<span id="L279" class="LineNr">279 </span> list:&:list:number <span class="Special"><-</span> push<span class="Constant"> 1</span>,<span class="Constant"> 0</span> +<span id="L280" class="LineNr">280 </span> list <span class="Special"><-</span> push<span class="Constant"> 2</span>, list +<span id="L281" class="LineNr">281 </span> list <span class="Special"><-</span> push<span class="Constant"> 3</span>, list +<span id="L282" class="LineNr">282 </span> run [ +<span id="L283" class="LineNr">283 </span> <span class="Conceal">¦</span> stash <span class="Constant">[list:]</span>, list +<span id="L284" class="LineNr">284 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> reverse list +<span id="L285" class="LineNr">285 </span> <span class="Conceal">¦</span> stash <span class="Constant">[reversed:]</span>, list +<span id="L286" class="LineNr">286 </span> ] +<span id="L287" class="LineNr">287 </span> trace-should-contain [ +<span id="L288" class="LineNr">288 </span> <span class="Conceal">¦</span> app: list:<span class="Constant"> 3</span><span class="muRecipe"> -> </span>2<span class="muRecipe"> -> </span>1 +<span id="L289" class="LineNr">289 </span> <span class="Conceal">¦</span> app: reversed:<span class="Constant"> 1</span><span class="muRecipe"> -> </span>2<span class="muRecipe"> -> </span>3 +<span id="L290" class="LineNr">290 </span> ] +<span id="L291" class="LineNr">291 </span>] +<span id="L292" class="LineNr">292 </span> +<span id="L293" class="LineNr">293 </span><span class="muRecipe">def</span> to-text in:&:list:_elem<span class="muRecipe"> -> </span>result:text [ +<span id="L294" class="LineNr">294 </span> <span class="Constant">local-scope</span> +<span id="L295" class="LineNr">295 </span> <span class="Constant">load-ingredients</span> +<span id="L296" class="LineNr">296 </span> buf:&:<a href='061text.mu.html#L127'>buffer</a> <span class="Special"><-</span> <a href='061text.mu.html#L132'>new-buffer</a><span class="Constant"> 80</span> +<span id="L297" class="LineNr">297 </span> buf <span class="Special"><-</span> <a href='064list.mu.html#L310'>to-buffer</a> in, buf +<span id="L298" class="LineNr">298 </span> result <span class="Special"><-</span> <a href='061text.mu.html#L329'>buffer-to-array</a> buf +<span id="L299" class="LineNr">299 </span>] +<span id="L300" class="LineNr">300 </span> +<span id="L301" class="LineNr">301 </span><span class="Comment"># variant of 'to-text' which stops printing after a few elements (and so is robust to cycles)</span> +<span id="L302" class="LineNr">302 </span><span class="muRecipe">def</span> to-text-line in:&:list:_elem<span class="muRecipe"> -> </span>result:text [ +<span id="L303" class="LineNr">303 </span> <span class="Constant">local-scope</span> +<span id="L304" class="LineNr">304 </span> <span class="Constant">load-ingredients</span> +<span id="L305" class="LineNr">305 </span> buf:&:<a href='061text.mu.html#L127'>buffer</a> <span class="Special"><-</span> <a href='061text.mu.html#L132'>new-buffer</a><span class="Constant"> 80</span> +<span id="L306" class="LineNr">306 </span> buf <span class="Special"><-</span> <a href='064list.mu.html#L310'>to-buffer</a> in, buf,<span class="Constant"> 6</span> <span class="Comment"># max elements to display</span> +<span id="L307" class="LineNr">307 </span> result <span class="Special"><-</span> <a href='061text.mu.html#L329'>buffer-to-array</a> buf +<span id="L308" class="LineNr">308 </span>] +<span id="L309" class="LineNr">309 </span> +<span id="L310" class="LineNr">310 </span><span class="muRecipe">def</span> <a href='064list.mu.html#L310'>to-buffer</a> in:&:list:_elem, buf:&:<a href='061text.mu.html#L127'>buffer</a><span class="muRecipe"> -> </span>buf:&:<a href='061text.mu.html#L127'>buffer</a> [ +<span id="L311" class="LineNr">311 </span> <span class="Constant">local-scope</span> +<span id="L312" class="LineNr">312 </span> <span class="Constant">load-ingredients</span> +<span id="L313" class="LineNr">313 </span> <span class="Delimiter">{</span> +<span id="L314" class="LineNr">314 </span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> in +<span id="L315" class="LineNr">315 </span> <span class="Conceal">¦</span> buf <span class="Special"><-</span> append buf, <span class="Constant">[[]</span>] +<span id="L316" class="LineNr">316 </span> <span class="Conceal">¦</span> <span class="muControl">return</span> +<span id="L317" class="LineNr">317 </span> <span class="Delimiter">}</span> +<span id="L318" class="LineNr">318 </span> <span class="Comment"># append in.value to buf</span> +<span id="L319" class="LineNr">319 </span> val:_elem <span class="Special"><-</span> get *in, <span class="Constant">value:offset</span> +<span id="L320" class="LineNr">320 </span> buf <span class="Special"><-</span> append buf, val +<span id="L321" class="LineNr">321 </span> <span class="Comment"># now prepare next</span> +<span id="L322" class="LineNr">322 </span> <a href='065duplex_list.mu.html#L29'>next</a>:&:list:_elem <span class="Special"><-</span> <a href='064list.mu.html#L25'>rest</a> in +<span id="L323" class="LineNr">323 </span> nextn:num <span class="Special"><-</span> copy <a href='065duplex_list.mu.html#L29'>next</a> +<span id="L324" class="LineNr">324 </span> <span class="muControl">return-unless</span> <a href='065duplex_list.mu.html#L29'>next</a> +<span id="L325" class="LineNr">325 </span> buf <span class="Special"><-</span> append buf, <span class="Constant">[ -> ]</span> +<span id="L326" class="LineNr">326 </span> <span class="Comment"># and recurse</span> +<span id="L327" class="LineNr">327 </span> remaining:num, optional-ingredient-found?:bool <span class="Special"><-</span> <span class="Constant">next-ingredient</span> +<span id="L328" class="LineNr">328 </span> <span class="Delimiter">{</span> +<span id="L329" class="LineNr">329 </span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> optional-ingredient-found? +<span id="L330" class="LineNr">330 </span> <span class="Conceal">¦</span> <span class="Comment"># unlimited recursion</span> +<span id="L331" class="LineNr">331 </span> <span class="Conceal">¦</span> buf <span class="Special"><-</span> <a href='064list.mu.html#L310'>to-buffer</a> <a href='065duplex_list.mu.html#L29'>next</a>, buf +<span id="L332" class="LineNr">332 </span> <span class="Conceal">¦</span> <span class="muControl">return</span> +<span id="L333" class="LineNr">333 </span> <span class="Delimiter">}</span> +<span id="L334" class="LineNr">334 </span> <span class="Delimiter">{</span> +<span id="L335" class="LineNr">335 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> remaining +<span id="L336" class="LineNr">336 </span> <span class="Conceal">¦</span> <span class="Comment"># limited recursion</span> +<span id="L337" class="LineNr">337 </span> <span class="Conceal">¦</span> remaining <span class="Special"><-</span> subtract remaining,<span class="Constant"> 1</span> +<span id="L338" class="LineNr">338 </span> <span class="Conceal">¦</span> buf <span class="Special"><-</span> <a href='064list.mu.html#L310'>to-buffer</a> <a href='065duplex_list.mu.html#L29'>next</a>, buf, remaining +<span id="L339" class="LineNr">339 </span> <span class="Conceal">¦</span> <span class="muControl">return</span> +<span id="L340" class="LineNr">340 </span> <span class="Delimiter">}</span> +<span id="L341" class="LineNr">341 </span> <span class="Comment"># past recursion depth; insert ellipses and stop</span> +<span id="L342" class="LineNr">342 </span> append buf, <span class="Constant">[...]</span> +<span id="L343" class="LineNr">343 </span>] +<span id="L344" class="LineNr">344 </span> +<span id="L345" class="LineNr">345 </span><span class="muScenario">scenario</span> stash-empty-list [ +<span id="L346" class="LineNr">346 </span> <span class="Constant">local-scope</span> +<span id="L347" class="LineNr">347 </span> x:&:list:num <span class="Special"><-</span> copy<span class="Constant"> 0</span> +<span id="L348" class="LineNr">348 </span> run [ +<span id="L349" class="LineNr">349 </span> <span class="Conceal">¦</span> stash x <span id="L350" class="LineNr">350 </span> ] -<span id="L351" class="LineNr">351 </span>] +<span id="L351" class="LineNr">351 </span> trace-should-contain [ +<span id="L352" class="LineNr">352 </span> <span class="Conceal">¦</span> app: <span class="Constant">[]</span> +<span id="L353" class="LineNr">353 </span> ] +<span id="L354" class="LineNr">354 </span>] </pre> </body> </html> diff --git a/html/065duplex_list.mu.html b/html/065duplex_list.mu.html index 6b0ecab7..fedcd670 100644 --- a/html/065duplex_list.mu.html +++ b/html/065duplex_list.mu.html @@ -145,468 +145,480 @@ if ('onhashchange' in window) { <span id="L83" class="LineNr"> 83 </span> ] <span id="L84" class="LineNr"> 84 </span>] <span id="L85" class="LineNr"> 85 </span> -<span id="L86" class="LineNr"> 86 </span><span class="Comment"># insert 'x' after 'in'</span> -<span id="L87" class="LineNr"> 87 </span><span class="muRecipe">def</span> insert x:_elem, in:&:duplex-list:_elem<span class="muRecipe"> -> </span>in:&:duplex-list:_elem [ -<span id="L88" class="LineNr"> 88 </span> <span class="Constant">local-scope</span> -<span id="L89" class="LineNr"> 89 </span> <span class="Constant">load-ingredients</span> -<span id="L90" class="LineNr"> 90 </span> new-node:&:duplex-list:_elem <span class="Special"><-</span> new <span class="Delimiter">{</span>(duplex-list _elem): type<span class="Delimiter">}</span> -<span id="L91" class="LineNr"> 91 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant">value:offset</span>, x -<span id="L92" class="LineNr"> 92 </span> <span class="Comment"># save old next before changing it</span> -<span id="L93" class="LineNr"> 93 </span> next-node:&:duplex-list:_elem <span class="Special"><-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span> -<span id="L94" class="LineNr"> 94 </span> *in <span class="Special"><-</span> put *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, new-node -<span id="L95" class="LineNr"> 95 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, in -<span id="L96" class="LineNr"> 96 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node -<span id="L97" class="LineNr"> 97 </span> <span class="muControl">return-unless</span> next-node -<span id="L98" class="LineNr"> 98 </span> *next-node <span class="Special"><-</span> put *next-node, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, new-node -<span id="L99" class="LineNr"> 99 </span>] -<span id="L100" class="LineNr">100 </span> -<span id="L101" class="LineNr">101 </span><span class="muScenario">scenario</span> inserting-into-duplex-list [ -<span id="L102" class="LineNr">102 </span> <span class="Constant">local-scope</span> -<span id="L103" class="LineNr">103 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L104" class="LineNr">104 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L105" class="LineNr">105 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L106" class="LineNr">106 </span> run [ -<span id="L107" class="LineNr">107 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list <span class="Comment"># inside list</span> -<span id="L108" class="LineNr">108 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list2 -<span id="L109" class="LineNr">109 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L110" class="LineNr">110 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list -<span id="L111" class="LineNr">111 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L112" class="LineNr">112 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L113" class="LineNr">113 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L114" class="LineNr">114 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L115" class="LineNr">115 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L116" class="LineNr">116 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L117" class="LineNr">117 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L118" class="LineNr">118 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L119" class="LineNr">119 </span> <span class="Conceal">¦</span> 20:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L120" class="LineNr">120 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L121" class="LineNr">121 </span> <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L122" class="LineNr">122 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L123" class="LineNr">123 </span> <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L124" class="LineNr">124 </span> <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 -<span id="L125" class="LineNr">125 </span> ] -<span id="L126" class="LineNr">126 </span> memory-should-contain [ -<span id="L127" class="LineNr">127 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> -<span id="L128" class="LineNr">128 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L129" class="LineNr">129 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> -<span id="L130" class="LineNr">130 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L131" class="LineNr">131 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># then prev</span> -<span id="L132" class="LineNr">132 </span> <span class="Conceal">¦</span><span class="Constant"> 21</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L133" class="LineNr">133 </span> <span class="Conceal">¦</span><span class="Constant"> 22</span> <span class="Special"><-</span><span class="Constant"> 5</span> -<span id="L134" class="LineNr">134 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> -<span id="L135" class="LineNr">135 </span> ] -<span id="L136" class="LineNr">136 </span>] -<span id="L137" class="LineNr">137 </span> -<span id="L138" class="LineNr">138 </span><span class="muScenario">scenario</span> inserting-at-end-of-duplex-list [ -<span id="L139" class="LineNr">139 </span> <span class="Constant">local-scope</span> -<span id="L140" class="LineNr">140 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L141" class="LineNr">141 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L142" class="LineNr">142 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L143" class="LineNr">143 </span> run [ -<span id="L144" class="LineNr">144 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list <span class="Comment"># inside list</span> -<span id="L145" class="LineNr">145 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 <span class="Comment"># now at end of list</span> -<span id="L146" class="LineNr">146 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list2 -<span id="L147" class="LineNr">147 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L148" class="LineNr">148 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list -<span id="L149" class="LineNr">149 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L150" class="LineNr">150 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L151" class="LineNr">151 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L152" class="LineNr">152 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L153" class="LineNr">153 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L154" class="LineNr">154 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L155" class="LineNr">155 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L156" class="LineNr">156 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L157" class="LineNr">157 </span> <span class="Conceal">¦</span> 20:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L158" class="LineNr">158 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L159" class="LineNr">159 </span> <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L160" class="LineNr">160 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L161" class="LineNr">161 </span> <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L162" class="LineNr">162 </span> <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 -<span id="L163" class="LineNr">163 </span> ] -<span id="L164" class="LineNr">164 </span> memory-should-contain [ -<span id="L165" class="LineNr">165 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> -<span id="L166" class="LineNr">166 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L167" class="LineNr">167 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L168" class="LineNr">168 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> -<span id="L169" class="LineNr">169 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 3</span> <span class="Comment"># then prev</span> -<span id="L170" class="LineNr">170 </span> <span class="Conceal">¦</span><span class="Constant"> 21</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L171" class="LineNr">171 </span> <span class="Conceal">¦</span><span class="Constant"> 22</span> <span class="Special"><-</span><span class="Constant"> 5</span> -<span id="L172" class="LineNr">172 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> -<span id="L173" class="LineNr">173 </span> ] -<span id="L174" class="LineNr">174 </span>] -<span id="L175" class="LineNr">175 </span> -<span id="L176" class="LineNr">176 </span><span class="muScenario">scenario</span> inserting-after-start-of-duplex-list [ -<span id="L177" class="LineNr">177 </span> <span class="Constant">local-scope</span> -<span id="L178" class="LineNr">178 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L179" class="LineNr">179 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L180" class="LineNr">180 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L181" class="LineNr">181 </span> run [ -<span id="L182" class="LineNr">182 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list -<span id="L183" class="LineNr">183 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L184" class="LineNr">184 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> copy list -<span id="L185" class="LineNr">185 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L186" class="LineNr">186 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L187" class="LineNr">187 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L188" class="LineNr">188 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L189" class="LineNr">189 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L190" class="LineNr">190 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L191" class="LineNr">191 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L192" class="LineNr">192 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L193" class="LineNr">193 </span> <span class="Conceal">¦</span> 20:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L194" class="LineNr">194 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L195" class="LineNr">195 </span> <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L196" class="LineNr">196 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L197" class="LineNr">197 </span> <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L198" class="LineNr">198 </span> <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 -<span id="L199" class="LineNr">199 </span> ] -<span id="L200" class="LineNr">200 </span> memory-should-contain [ -<span id="L201" class="LineNr">201 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> -<span id="L202" class="LineNr">202 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> -<span id="L203" class="LineNr">203 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L204" class="LineNr">204 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L205" class="LineNr">205 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 4</span> <span class="Comment"># then prev</span> -<span id="L206" class="LineNr">206 </span> <span class="Conceal">¦</span><span class="Constant"> 21</span> <span class="Special"><-</span><span class="Constant"> 6</span> -<span id="L207" class="LineNr">207 </span> <span class="Conceal">¦</span><span class="Constant"> 22</span> <span class="Special"><-</span><span class="Constant"> 5</span> -<span id="L208" class="LineNr">208 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> -<span id="L209" class="LineNr">209 </span> ] -<span id="L210" class="LineNr">210 </span>] -<span id="L211" class="LineNr">211 </span> -<span id="L212" class="LineNr">212 </span><span class="Comment"># remove 'x' from its surrounding list 'in'</span> -<span id="L213" class="LineNr">213 </span><span class="Comment">#</span> -<span id="L214" class="LineNr">214 </span><span class="Comment"># Returns null if and only if list is empty. Beware: in that case any other</span> -<span id="L215" class="LineNr">215 </span><span class="Comment"># pointers to the head are now invalid.</span> -<span id="L216" class="LineNr">216 </span><span class="muRecipe">def</span> remove x:&:duplex-list:_elem/contained-in:in, in:&:duplex-list:_elem<span class="muRecipe"> -> </span>in:&:duplex-list:_elem [ -<span id="L217" class="LineNr">217 </span> <span class="Constant">local-scope</span> -<span id="L218" class="LineNr">218 </span> <span class="Constant">load-ingredients</span> -<span id="L219" class="LineNr">219 </span> <span class="Comment"># if 'x' is null, return</span> -<span id="L220" class="LineNr">220 </span> <span class="muControl">return-unless</span> x -<span id="L221" class="LineNr">221 </span> next-node:&:duplex-list:_elem <span class="Special"><-</span> get *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span> -<span id="L222" class="LineNr">222 </span> prev-node:&:duplex-list:_elem <span class="Special"><-</span> get *x, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span> -<span id="L223" class="LineNr">223 </span> <span class="Comment"># null x's pointers</span> -<span id="L224" class="LineNr">224 </span> *x <span class="Special"><-</span> put *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>,<span class="Constant"> 0</span> -<span id="L225" class="LineNr">225 </span> *x <span class="Special"><-</span> put *x, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>,<span class="Constant"> 0</span> -<span id="L226" class="LineNr">226 </span> <span class="Comment"># if next-node is not null, set its prev pointer</span> -<span id="L227" class="LineNr">227 </span> <span class="Delimiter">{</span> -<span id="L228" class="LineNr">228 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> next-node -<span id="L229" class="LineNr">229 </span> <span class="Conceal">¦</span> *next-node <span class="Special"><-</span> put *next-node, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, prev-node -<span id="L230" class="LineNr">230 </span> <span class="Delimiter">}</span> -<span id="L231" class="LineNr">231 </span> <span class="Comment"># if prev-node is not null, set its next pointer and return</span> -<span id="L232" class="LineNr">232 </span> <span class="Delimiter">{</span> -<span id="L233" class="LineNr">233 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> prev-node -<span id="L234" class="LineNr">234 </span> <span class="Conceal">¦</span> *prev-node <span class="Special"><-</span> put *prev-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node -<span id="L235" class="LineNr">235 </span> <span class="Conceal">¦</span> <span class="muControl">return</span> -<span id="L236" class="LineNr">236 </span> <span class="Delimiter">}</span> -<span id="L237" class="LineNr">237 </span> <span class="Comment"># if prev-node is null, then we removed the head node at 'in'</span> -<span id="L238" class="LineNr">238 </span> <span class="Comment"># return the new head rather than the old 'in'</span> -<span id="L239" class="LineNr">239 </span> <span class="muControl">return</span> next-node -<span id="L240" class="LineNr">240 </span>] -<span id="L241" class="LineNr">241 </span> -<span id="L242" class="LineNr">242 </span><span class="muScenario">scenario</span> removing-from-duplex-list [ -<span id="L243" class="LineNr">243 </span> <span class="Constant">local-scope</span> -<span id="L244" class="LineNr">244 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L245" class="LineNr">245 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L246" class="LineNr">246 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L247" class="LineNr">247 </span> run [ -<span id="L248" class="LineNr">248 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list <span class="Comment"># second element</span> -<span id="L249" class="LineNr">249 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list2, list -<span id="L250" class="LineNr">250 </span> <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list2,<span class="Constant"> 0</span> -<span id="L251" class="LineNr">251 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L252" class="LineNr">252 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list -<span id="L253" class="LineNr">253 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L254" class="LineNr">254 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L255" class="LineNr">255 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L256" class="LineNr">256 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L257" class="LineNr">257 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L258" class="LineNr">258 </span> <span class="Conceal">¦</span> 30:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L259" class="LineNr">259 </span> <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 -<span id="L260" class="LineNr">260 </span> ] -<span id="L261" class="LineNr">261 </span> memory-should-contain [ -<span id="L262" class="LineNr">262 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># remove returned non-null</span> -<span id="L263" class="LineNr">263 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next, skipping deleted element</span> -<span id="L264" class="LineNr">264 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L265" class="LineNr">265 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> -<span id="L266" class="LineNr">266 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># prev of final element</span> -<span id="L267" class="LineNr">267 </span> <span class="Conceal">¦</span><span class="Constant"> 40</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> -<span id="L268" class="LineNr">268 </span> ] -<span id="L269" class="LineNr">269 </span>] -<span id="L270" class="LineNr">270 </span> -<span id="L271" class="LineNr">271 </span><span class="muScenario">scenario</span> removing-from-start-of-duplex-list [ -<span id="L272" class="LineNr">272 </span> <span class="Constant">local-scope</span> -<span id="L273" class="LineNr">273 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L274" class="LineNr">274 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L275" class="LineNr">275 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L276" class="LineNr">276 </span> run [ -<span id="L277" class="LineNr">277 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list, list -<span id="L278" class="LineNr">278 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L279" class="LineNr">279 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> copy list -<span id="L280" class="LineNr">280 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L281" class="LineNr">281 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L282" class="LineNr">282 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L283" class="LineNr">283 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L284" class="LineNr">284 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L285" class="LineNr">285 </span> <span class="Conceal">¦</span> 30:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L286" class="LineNr">286 </span> <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 -<span id="L287" class="LineNr">287 </span> ] -<span id="L288" class="LineNr">288 </span> memory-should-contain [ -<span id="L289" class="LineNr">289 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 4</span> <span class="Comment"># scanning next, skipping deleted element</span> -<span id="L290" class="LineNr">290 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 3</span> -<span id="L291" class="LineNr">291 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> -<span id="L292" class="LineNr">292 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 4</span> <span class="Comment"># prev of final element</span> -<span id="L293" class="LineNr">293 </span> <span class="Conceal">¦</span><span class="Constant"> 40</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> -<span id="L294" class="LineNr">294 </span> ] -<span id="L295" class="LineNr">295 </span>] -<span id="L296" class="LineNr">296 </span> -<span id="L297" class="LineNr">297 </span><span class="muScenario">scenario</span> removing-from-end-of-duplex-list [ -<span id="L298" class="LineNr">298 </span> <span class="Constant">local-scope</span> -<span id="L299" class="LineNr">299 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L300" class="LineNr">300 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list -<span id="L301" class="LineNr">301 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list -<span id="L302" class="LineNr">302 </span> run [ -<span id="L303" class="LineNr">303 </span> <span class="Conceal">¦</span> <span class="Comment"># delete last element</span> -<span id="L304" class="LineNr">304 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L305" class="LineNr">305 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L306" class="LineNr">306 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list2, list -<span id="L307" class="LineNr">307 </span> <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list2,<span class="Constant"> 0</span> -<span id="L308" class="LineNr">308 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> -<span id="L309" class="LineNr">309 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list -<span id="L310" class="LineNr">310 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L311" class="LineNr">311 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L312" class="LineNr">312 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L313" class="LineNr">313 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L314" class="LineNr">314 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 -<span id="L315" class="LineNr">315 </span> <span class="Conceal">¦</span> 30:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 -<span id="L316" class="LineNr">316 </span> <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 -<span id="L317" class="LineNr">317 </span> ] -<span id="L318" class="LineNr">318 </span> memory-should-contain [ -<span id="L319" class="LineNr">319 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># remove returned non-null</span> -<span id="L320" class="LineNr">320 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next, skipping deleted element</span> -<span id="L321" class="LineNr">321 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 4</span> -<span id="L322" class="LineNr">322 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> -<span id="L323" class="LineNr">323 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># prev of final element</span> -<span id="L324" class="LineNr">324 </span> <span class="Conceal">¦</span><span class="Constant"> 40</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> -<span id="L325" class="LineNr">325 </span> ] -<span id="L326" class="LineNr">326 </span>] -<span id="L327" class="LineNr">327 </span> -<span id="L328" class="LineNr">328 </span><span class="muScenario">scenario</span> removing-from-singleton-duplex-list [ -<span id="L329" class="LineNr">329 </span> <span class="Constant">local-scope</span> -<span id="L330" class="LineNr">330 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> -<span id="L331" class="LineNr">331 </span> run [ -<span id="L332" class="LineNr">332 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list, list -<span id="L333" class="LineNr">333 </span> <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span> <span class="Special"><-</span> copy list -<span id="L334" class="LineNr">334 </span> ] -<span id="L335" class="LineNr">335 </span> memory-should-contain [ -<span id="L336" class="LineNr">336 </span> <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># back to an empty list</span> +<span id="L86" class="LineNr"> 86 </span><span class="muRecipe">def</span> length l:&:duplex-list:_elem<span class="muRecipe"> -> </span>result:num [ +<span id="L87" class="LineNr"> 87 </span> <span class="Constant">local-scope</span> +<span id="L88" class="LineNr"> 88 </span> <span class="Constant">load-ingredients</span> +<span id="L89" class="LineNr"> 89 </span> result <span class="Special"><-</span> copy<span class="Constant"> 0</span> +<span id="L90" class="LineNr"> 90 </span> <span class="Delimiter">{</span> +<span id="L91" class="LineNr"> 91 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> l +<span id="L92" class="LineNr"> 92 </span> <span class="Conceal">¦</span> result <span class="Special"><-</span> add result,<span class="Constant"> 1</span> +<span id="L93" class="LineNr"> 93 </span> <span class="Conceal">¦</span> l <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> l +<span id="L94" class="LineNr"> 94 </span> <span class="Conceal">¦</span> <span class="muControl">loop</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Delimiter">}</span> +<span id="L96" class="LineNr"> 96 </span>] +<span id="L97" class="LineNr"> 97 </span> +<span id="L98" class="LineNr"> 98 </span><span class="Comment"># insert 'x' after 'in'</span> +<span id="L99" class="LineNr"> 99 </span><span class="muRecipe">def</span> insert x:_elem, in:&:duplex-list:_elem<span class="muRecipe"> -> </span>in:&:duplex-list:_elem [ +<span id="L100" class="LineNr">100 </span> <span class="Constant">local-scope</span> +<span id="L101" class="LineNr">101 </span> <span class="Constant">load-ingredients</span> +<span id="L102" class="LineNr">102 </span> new-node:&:duplex-list:_elem <span class="Special"><-</span> new <span class="Delimiter">{</span>(duplex-list _elem): type<span class="Delimiter">}</span> +<span id="L103" class="LineNr">103 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant">value:offset</span>, x +<span id="L104" class="LineNr">104 </span> <span class="Comment"># save old next before changing it</span> +<span id="L105" class="LineNr">105 </span> next-node:&:duplex-list:_elem <span class="Special"><-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span> +<span id="L106" class="LineNr">106 </span> *in <span class="Special"><-</span> put *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, new-node +<span id="L107" class="LineNr">107 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, in +<span id="L108" class="LineNr">108 </span> *new-node <span class="Special"><-</span> put *new-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node +<span id="L109" class="LineNr">109 </span> <span class="muControl">return-unless</span> next-node +<span id="L110" class="LineNr">110 </span> *next-node <span class="Special"><-</span> put *next-node, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, new-node +<span id="L111" class="LineNr">111 </span>] +<span id="L112" class="LineNr">112 </span> +<span id="L113" class="LineNr">113 </span><span class="muScenario">scenario</span> inserting-into-duplex-list [ +<span id="L114" class="LineNr">114 </span> <span class="Constant">local-scope</span> +<span id="L115" class="LineNr">115 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L116" class="LineNr">116 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L117" class="LineNr">117 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L118" class="LineNr">118 </span> run [ +<span id="L119" class="LineNr">119 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list <span class="Comment"># inside list</span> +<span id="L120" class="LineNr">120 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list2 +<span id="L121" class="LineNr">121 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L122" class="LineNr">122 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list +<span id="L123" class="LineNr">123 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L124" class="LineNr">124 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L125" class="LineNr">125 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L126" class="LineNr">126 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L127" class="LineNr">127 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L128" class="LineNr">128 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L129" class="LineNr">129 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L130" class="LineNr">130 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L131" class="LineNr">131 </span> <span class="Conceal">¦</span> 20:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L132" class="LineNr">132 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L133" class="LineNr">133 </span> <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L134" class="LineNr">134 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L135" class="LineNr">135 </span> <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L136" class="LineNr">136 </span> <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 +<span id="L137" class="LineNr">137 </span> ] +<span id="L138" class="LineNr">138 </span> memory-should-contain [ +<span id="L139" class="LineNr">139 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> +<span id="L140" class="LineNr">140 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L141" class="LineNr">141 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> +<span id="L142" class="LineNr">142 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L143" class="LineNr">143 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># then prev</span> +<span id="L144" class="LineNr">144 </span> <span class="Conceal">¦</span><span class="Constant"> 21</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L145" class="LineNr">145 </span> <span class="Conceal">¦</span><span class="Constant"> 22</span> <span class="Special"><-</span><span class="Constant"> 5</span> +<span id="L146" class="LineNr">146 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> +<span id="L147" class="LineNr">147 </span> ] +<span id="L148" class="LineNr">148 </span>] +<span id="L149" class="LineNr">149 </span> +<span id="L150" class="LineNr">150 </span><span class="muScenario">scenario</span> inserting-at-end-of-duplex-list [ +<span id="L151" class="LineNr">151 </span> <span class="Constant">local-scope</span> +<span id="L152" class="LineNr">152 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L153" class="LineNr">153 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L154" class="LineNr">154 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L155" class="LineNr">155 </span> run [ +<span id="L156" class="LineNr">156 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list <span class="Comment"># inside list</span> +<span id="L157" class="LineNr">157 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 <span class="Comment"># now at end of list</span> +<span id="L158" class="LineNr">158 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list2 +<span id="L159" class="LineNr">159 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L160" class="LineNr">160 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list +<span id="L161" class="LineNr">161 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L162" class="LineNr">162 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L163" class="LineNr">163 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L164" class="LineNr">164 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L165" class="LineNr">165 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L166" class="LineNr">166 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L167" class="LineNr">167 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L168" class="LineNr">168 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L169" class="LineNr">169 </span> <span class="Conceal">¦</span> 20:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L170" class="LineNr">170 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L171" class="LineNr">171 </span> <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L172" class="LineNr">172 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L173" class="LineNr">173 </span> <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L174" class="LineNr">174 </span> <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 +<span id="L175" class="LineNr">175 </span> ] +<span id="L176" class="LineNr">176 </span> memory-should-contain [ +<span id="L177" class="LineNr">177 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> +<span id="L178" class="LineNr">178 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L179" class="LineNr">179 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L180" class="LineNr">180 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> +<span id="L181" class="LineNr">181 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 3</span> <span class="Comment"># then prev</span> +<span id="L182" class="LineNr">182 </span> <span class="Conceal">¦</span><span class="Constant"> 21</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L183" class="LineNr">183 </span> <span class="Conceal">¦</span><span class="Constant"> 22</span> <span class="Special"><-</span><span class="Constant"> 5</span> +<span id="L184" class="LineNr">184 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> +<span id="L185" class="LineNr">185 </span> ] +<span id="L186" class="LineNr">186 </span>] +<span id="L187" class="LineNr">187 </span> +<span id="L188" class="LineNr">188 </span><span class="muScenario">scenario</span> inserting-after-start-of-duplex-list [ +<span id="L189" class="LineNr">189 </span> <span class="Constant">local-scope</span> +<span id="L190" class="LineNr">190 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L191" class="LineNr">191 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L192" class="LineNr">192 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L193" class="LineNr">193 </span> run [ +<span id="L194" class="LineNr">194 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> insert<span class="Constant"> 6</span>, list +<span id="L195" class="LineNr">195 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L196" class="LineNr">196 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> copy list +<span id="L197" class="LineNr">197 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L198" class="LineNr">198 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L199" class="LineNr">199 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L200" class="LineNr">200 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L201" class="LineNr">201 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L202" class="LineNr">202 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L203" class="LineNr">203 </span> <span class="Conceal">¦</span> 13:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L204" class="LineNr">204 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L205" class="LineNr">205 </span> <span class="Conceal">¦</span> 20:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L206" class="LineNr">206 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L207" class="LineNr">207 </span> <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L208" class="LineNr">208 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L209" class="LineNr">209 </span> <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L210" class="LineNr">210 </span> <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 +<span id="L211" class="LineNr">211 </span> ] +<span id="L212" class="LineNr">212 </span> memory-should-contain [ +<span id="L213" class="LineNr">213 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next</span> +<span id="L214" class="LineNr">214 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 6</span> <span class="Comment"># inserted element</span> +<span id="L215" class="LineNr">215 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L216" class="LineNr">216 </span> <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L217" class="LineNr">217 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 4</span> <span class="Comment"># then prev</span> +<span id="L218" class="LineNr">218 </span> <span class="Conceal">¦</span><span class="Constant"> 21</span> <span class="Special"><-</span><span class="Constant"> 6</span> +<span id="L219" class="LineNr">219 </span> <span class="Conceal">¦</span><span class="Constant"> 22</span> <span class="Special"><-</span><span class="Constant"> 5</span> +<span id="L220" class="LineNr">220 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> +<span id="L221" class="LineNr">221 </span> ] +<span id="L222" class="LineNr">222 </span>] +<span id="L223" class="LineNr">223 </span> +<span id="L224" class="LineNr">224 </span><span class="Comment"># remove 'x' from its surrounding list 'in'</span> +<span id="L225" class="LineNr">225 </span><span class="Comment">#</span> +<span id="L226" class="LineNr">226 </span><span class="Comment"># Returns null if and only if list is empty. Beware: in that case any other</span> +<span id="L227" class="LineNr">227 </span><span class="Comment"># pointers to the head are now invalid.</span> +<span id="L228" class="LineNr">228 </span><span class="muRecipe">def</span> remove x:&:duplex-list:_elem/contained-in:in, in:&:duplex-list:_elem<span class="muRecipe"> -> </span>in:&:duplex-list:_elem [ +<span id="L229" class="LineNr">229 </span> <span class="Constant">local-scope</span> +<span id="L230" class="LineNr">230 </span> <span class="Constant">load-ingredients</span> +<span id="L231" class="LineNr">231 </span> <span class="Comment"># if 'x' is null, return</span> +<span id="L232" class="LineNr">232 </span> <span class="muControl">return-unless</span> x +<span id="L233" class="LineNr">233 </span> next-node:&:duplex-list:_elem <span class="Special"><-</span> get *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span> +<span id="L234" class="LineNr">234 </span> prev-node:&:duplex-list:_elem <span class="Special"><-</span> get *x, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span> +<span id="L235" class="LineNr">235 </span> <span class="Comment"># null x's pointers</span> +<span id="L236" class="LineNr">236 </span> *x <span class="Special"><-</span> put *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>,<span class="Constant"> 0</span> +<span id="L237" class="LineNr">237 </span> *x <span class="Special"><-</span> put *x, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>,<span class="Constant"> 0</span> +<span id="L238" class="LineNr">238 </span> <span class="Comment"># if next-node is not null, set its prev pointer</span> +<span id="L239" class="LineNr">239 </span> <span class="Delimiter">{</span> +<span id="L240" class="LineNr">240 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> next-node +<span id="L241" class="LineNr">241 </span> <span class="Conceal">¦</span> *next-node <span class="Special"><-</span> put *next-node, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, prev-node +<span id="L242" class="LineNr">242 </span> <span class="Delimiter">}</span> +<span id="L243" class="LineNr">243 </span> <span class="Comment"># if prev-node is not null, set its next pointer and return</span> +<span id="L244" class="LineNr">244 </span> <span class="Delimiter">{</span> +<span id="L245" class="LineNr">245 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> prev-node +<span id="L246" class="LineNr">246 </span> <span class="Conceal">¦</span> *prev-node <span class="Special"><-</span> put *prev-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node +<span id="L247" class="LineNr">247 </span> <span class="Conceal">¦</span> <span class="muControl">return</span> +<span id="L248" class="LineNr">248 </span> <span class="Delimiter">}</span> +<span id="L249" class="LineNr">249 </span> <span class="Comment"># if prev-node is null, then we removed the head node at 'in'</span> +<span id="L250" class="LineNr">250 </span> <span class="Comment"># return the new head rather than the old 'in'</span> +<span id="L251" class="LineNr">251 </span> <span class="muControl">return</span> next-node +<span id="L252" class="LineNr">252 </span>] +<span id="L253" class="LineNr">253 </span> +<span id="L254" class="LineNr">254 </span><span class="muScenario">scenario</span> removing-from-duplex-list [ +<span id="L255" class="LineNr">255 </span> <span class="Constant">local-scope</span> +<span id="L256" class="LineNr">256 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L257" class="LineNr">257 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L258" class="LineNr">258 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L259" class="LineNr">259 </span> run [ +<span id="L260" class="LineNr">260 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list <span class="Comment"># second element</span> +<span id="L261" class="LineNr">261 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list2, list +<span id="L262" class="LineNr">262 </span> <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list2,<span class="Constant"> 0</span> +<span id="L263" class="LineNr">263 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L264" class="LineNr">264 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list +<span id="L265" class="LineNr">265 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L266" class="LineNr">266 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L267" class="LineNr">267 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L268" class="LineNr">268 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L269" class="LineNr">269 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L270" class="LineNr">270 </span> <span class="Conceal">¦</span> 30:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L271" class="LineNr">271 </span> <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 +<span id="L272" class="LineNr">272 </span> ] +<span id="L273" class="LineNr">273 </span> memory-should-contain [ +<span id="L274" class="LineNr">274 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># remove returned non-null</span> +<span id="L275" class="LineNr">275 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next, skipping deleted element</span> +<span id="L276" class="LineNr">276 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L277" class="LineNr">277 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> +<span id="L278" class="LineNr">278 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># prev of final element</span> +<span id="L279" class="LineNr">279 </span> <span class="Conceal">¦</span><span class="Constant"> 40</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> +<span id="L280" class="LineNr">280 </span> ] +<span id="L281" class="LineNr">281 </span>] +<span id="L282" class="LineNr">282 </span> +<span id="L283" class="LineNr">283 </span><span class="muScenario">scenario</span> removing-from-start-of-duplex-list [ +<span id="L284" class="LineNr">284 </span> <span class="Constant">local-scope</span> +<span id="L285" class="LineNr">285 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L286" class="LineNr">286 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L287" class="LineNr">287 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L288" class="LineNr">288 </span> run [ +<span id="L289" class="LineNr">289 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list, list +<span id="L290" class="LineNr">290 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L291" class="LineNr">291 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> copy list +<span id="L292" class="LineNr">292 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L293" class="LineNr">293 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L294" class="LineNr">294 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L295" class="LineNr">295 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L296" class="LineNr">296 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L297" class="LineNr">297 </span> <span class="Conceal">¦</span> 30:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L298" class="LineNr">298 </span> <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 +<span id="L299" class="LineNr">299 </span> ] +<span id="L300" class="LineNr">300 </span> memory-should-contain [ +<span id="L301" class="LineNr">301 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 4</span> <span class="Comment"># scanning next, skipping deleted element</span> +<span id="L302" class="LineNr">302 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 3</span> +<span id="L303" class="LineNr">303 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> +<span id="L304" class="LineNr">304 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 4</span> <span class="Comment"># prev of final element</span> +<span id="L305" class="LineNr">305 </span> <span class="Conceal">¦</span><span class="Constant"> 40</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> +<span id="L306" class="LineNr">306 </span> ] +<span id="L307" class="LineNr">307 </span>] +<span id="L308" class="LineNr">308 </span> +<span id="L309" class="LineNr">309 </span><span class="muScenario">scenario</span> removing-from-end-of-duplex-list [ +<span id="L310" class="LineNr">310 </span> <span class="Constant">local-scope</span> +<span id="L311" class="LineNr">311 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L312" class="LineNr">312 </span> list <span class="Special"><-</span> push<span class="Constant"> 4</span>, list +<span id="L313" class="LineNr">313 </span> list <span class="Special"><-</span> push<span class="Constant"> 5</span>, list +<span id="L314" class="LineNr">314 </span> run [ +<span id="L315" class="LineNr">315 </span> <span class="Conceal">¦</span> <span class="Comment"># delete last element</span> +<span id="L316" class="LineNr">316 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L317" class="LineNr">317 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L318" class="LineNr">318 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list2, list +<span id="L319" class="LineNr">319 </span> <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list2,<span class="Constant"> 0</span> +<span id="L320" class="LineNr">320 </span> <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span> +<span id="L321" class="LineNr">321 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> copy list +<span id="L322" class="LineNr">322 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L323" class="LineNr">323 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L324" class="LineNr">324 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L325" class="LineNr">325 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L326" class="LineNr">326 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2 +<span id="L327" class="LineNr">327 </span> <span class="Conceal">¦</span> 30:char/<span class="Special">raw</span> <span class="Special"><-</span> first list2 +<span id="L328" class="LineNr">328 </span> <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special"><-</span> equal list, list2 +<span id="L329" class="LineNr">329 </span> ] +<span id="L330" class="LineNr">330 </span> memory-should-contain [ +<span id="L331" class="LineNr">331 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># remove returned non-null</span> +<span id="L332" class="LineNr">332 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># scanning next, skipping deleted element</span> +<span id="L333" class="LineNr">333 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 4</span> +<span id="L334" class="LineNr">334 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> +<span id="L335" class="LineNr">335 </span> <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special"><-</span><span class="Constant"> 5</span> <span class="Comment"># prev of final element</span> +<span id="L336" class="LineNr">336 </span> <span class="Conceal">¦</span><span class="Constant"> 40</span> <span class="Special"><-</span><span class="Constant"> 1</span> <span class="Comment"># list back at start</span> <span id="L337" class="LineNr">337 </span> ] <span id="L338" class="LineNr">338 </span>] <span id="L339" class="LineNr">339 </span> -<span id="L340" class="LineNr">340 </span><span class="Comment"># remove values between 'start' and 'end' (both exclusive).</span> -<span id="L341" class="LineNr">341 </span><span class="Comment"># also clear pointers back out from start/end for hygiene.</span> -<span id="L342" class="LineNr">342 </span><span class="Comment"># set end to 0 to delete everything past start.</span> -<span id="L343" class="LineNr">343 </span><span class="Comment"># can't set start to 0 to delete everything before end, because there's no</span> -<span id="L344" class="LineNr">344 </span><span class="Comment"># clean way to return the new head pointer.</span> -<span id="L345" class="LineNr">345 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L345'>remove-between</a> start:&:duplex-list:_elem, end:&:duplex-list:_elem/contained-in:start<span class="muRecipe"> -> </span>start:&:duplex-list:_elem [ -<span id="L346" class="LineNr">346 </span> <span class="Constant">local-scope</span> -<span id="L347" class="LineNr">347 </span> <span class="Constant">load-ingredients</span> -<span id="L348" class="LineNr">348 </span> <a href='065duplex_list.mu.html#L29'>next</a>:&:duplex-list:_elem <span class="Special"><-</span> get *start, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span> -<span id="L349" class="LineNr">349 </span> nothing-to-delete?:bool <span class="Special"><-</span> equal <a href='065duplex_list.mu.html#L29'>next</a>, end -<span id="L350" class="LineNr">350 </span> <span class="muControl">return-if</span> nothing-to-delete? -<span id="L351" class="LineNr">351 </span> assert <a href='065duplex_list.mu.html#L29'>next</a>, <span class="Constant">[malformed duplex list]</span> -<span id="L352" class="LineNr">352 </span> <span class="Comment"># start->next->prev = 0</span> -<span id="L353" class="LineNr">353 </span> <span class="Comment"># start->next = end</span> -<span id="L354" class="LineNr">354 </span> *next <span class="Special"><-</span> put *next, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>,<span class="Constant"> 0</span> -<span id="L355" class="LineNr">355 </span> *start <span class="Special"><-</span> put *start, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, end -<span id="L356" class="LineNr">356 </span> <span class="muControl">return-unless</span> end -<span id="L357" class="LineNr">357 </span> <span class="Comment"># end->prev->next = 0</span> -<span id="L358" class="LineNr">358 </span> <span class="Comment"># end->prev = start</span> -<span id="L359" class="LineNr">359 </span> <a href='065duplex_list.mu.html#L36'>prev</a>:&:duplex-list:_elem <span class="Special"><-</span> get *end, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span> -<span id="L360" class="LineNr">360 </span> assert <a href='065duplex_list.mu.html#L36'>prev</a>, <span class="Constant">[malformed duplex list - 2]</span> -<span id="L361" class="LineNr">361 </span> *prev <span class="Special"><-</span> put *prev, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>,<span class="Constant"> 0</span> -<span id="L362" class="LineNr">362 </span> *end <span class="Special"><-</span> put *end, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, start -<span id="L363" class="LineNr">363 </span>] -<span id="L364" class="LineNr">364 </span> -<span id="L365" class="LineNr">365 </span><span class="muScenario">scenario</span> remove-range [ -<span id="L366" class="LineNr">366 </span> <span class="Comment"># construct a duplex list with six elements [13, 14, 15, 16, 17, 18]</span> -<span id="L367" class="LineNr">367 </span> <span class="Constant">local-scope</span> -<span id="L368" class="LineNr">368 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span> -<span id="L369" class="LineNr">369 </span> list <span class="Special"><-</span> push<span class="Constant"> 17</span>, list -<span id="L370" class="LineNr">370 </span> list <span class="Special"><-</span> push<span class="Constant"> 16</span>, list -<span id="L371" class="LineNr">371 </span> list <span class="Special"><-</span> push<span class="Constant"> 15</span>, list -<span id="L372" class="LineNr">372 </span> list <span class="Special"><-</span> push<span class="Constant"> 14</span>, list -<span id="L373" class="LineNr">373 </span> list <span class="Special"><-</span> push<span class="Constant"> 13</span>, list -<span id="L374" class="LineNr">374 </span> run [ -<span id="L375" class="LineNr">375 </span> <span class="Conceal">¦</span> <span class="Comment"># delete 16 onwards</span> -<span id="L376" class="LineNr">376 </span> <span class="Conceal">¦</span> <span class="Comment"># first pointer: to the third element</span> -<span id="L377" class="LineNr">377 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L378" class="LineNr">378 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L379" class="LineNr">379 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L345'>remove-between</a> list2,<span class="Constant"> 0</span> -<span id="L380" class="LineNr">380 </span> <span class="Conceal">¦</span> <span class="Comment"># now check the list</span> -<span id="L381" class="LineNr">381 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L382" class="LineNr">382 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L383" class="LineNr">383 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L384" class="LineNr">384 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L385" class="LineNr">385 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L386" class="LineNr">386 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L387" class="LineNr">387 </span> ] -<span id="L388" class="LineNr">388 </span> memory-should-contain [ -<span id="L389" class="LineNr">389 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 13</span> -<span id="L390" class="LineNr">390 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 14</span> -<span id="L391" class="LineNr">391 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 15</span> -<span id="L392" class="LineNr">392 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> -<span id="L393" class="LineNr">393 </span> ] -<span id="L394" class="LineNr">394 </span>] -<span id="L395" class="LineNr">395 </span> -<span id="L396" class="LineNr">396 </span><span class="muScenario">scenario</span> remove-range-to-final [ -<span id="L397" class="LineNr">397 </span> <span class="Constant">local-scope</span> -<span id="L398" class="LineNr">398 </span> <span class="Comment"># construct a duplex list with six elements [13, 14, 15, 16, 17, 18]</span> -<span id="L399" class="LineNr">399 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span> -<span id="L400" class="LineNr">400 </span> list <span class="Special"><-</span> push<span class="Constant"> 17</span>, list -<span id="L401" class="LineNr">401 </span> list <span class="Special"><-</span> push<span class="Constant"> 16</span>, list -<span id="L402" class="LineNr">402 </span> list <span class="Special"><-</span> push<span class="Constant"> 15</span>, list -<span id="L403" class="LineNr">403 </span> list <span class="Special"><-</span> push<span class="Constant"> 14</span>, list -<span id="L404" class="LineNr">404 </span> list <span class="Special"><-</span> push<span class="Constant"> 13</span>, list -<span id="L405" class="LineNr">405 </span> run [ -<span id="L406" class="LineNr">406 </span> <span class="Conceal">¦</span> <span class="Comment"># delete 15, 16 and 17</span> -<span id="L407" class="LineNr">407 </span> <span class="Conceal">¦</span> <span class="Comment"># start pointer: to the second element</span> -<span id="L408" class="LineNr">408 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L409" class="LineNr">409 </span> <span class="Conceal">¦</span> <span class="Comment"># end pointer: to the last (sixth) element</span> -<span id="L410" class="LineNr">410 </span> <span class="Conceal">¦</span> end:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 -<span id="L411" class="LineNr">411 </span> <span class="Conceal">¦</span> end <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> end -<span id="L412" class="LineNr">412 </span> <span class="Conceal">¦</span> end <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> end -<span id="L413" class="LineNr">413 </span> <span class="Conceal">¦</span> end <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> end -<span id="L414" class="LineNr">414 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L345'>remove-between</a> list2, end -<span id="L415" class="LineNr">415 </span> <span class="Conceal">¦</span> <span class="Comment"># now check the list</span> -<span id="L416" class="LineNr">416 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L417" class="LineNr">417 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L418" class="LineNr">418 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L419" class="LineNr">419 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L420" class="LineNr">420 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L421" class="LineNr">421 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L422" class="LineNr">422 </span> ] -<span id="L423" class="LineNr">423 </span> memory-should-contain [ -<span id="L424" class="LineNr">424 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 13</span> -<span id="L425" class="LineNr">425 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 14</span> -<span id="L426" class="LineNr">426 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 18</span> -<span id="L427" class="LineNr">427 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> -<span id="L428" class="LineNr">428 </span> ] -<span id="L429" class="LineNr">429 </span>] -<span id="L430" class="LineNr">430 </span> -<span id="L431" class="LineNr">431 </span><span class="muScenario">scenario</span> remove-range-empty [ -<span id="L432" class="LineNr">432 </span> <span class="Constant">local-scope</span> -<span id="L433" class="LineNr">433 </span> <span class="Comment"># construct a duplex list with three elements [13, 14, 15]</span> -<span id="L434" class="LineNr">434 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 15</span>,<span class="Constant"> 0</span> -<span id="L435" class="LineNr">435 </span> list <span class="Special"><-</span> push<span class="Constant"> 14</span>, list -<span id="L436" class="LineNr">436 </span> list <span class="Special"><-</span> push<span class="Constant"> 13</span>, list -<span id="L437" class="LineNr">437 </span> run [ -<span id="L438" class="LineNr">438 </span> <span class="Conceal">¦</span> <span class="Comment"># delete between first and second element (i.e. nothing)</span> -<span id="L439" class="LineNr">439 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L440" class="LineNr">440 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L345'>remove-between</a> list, list2 -<span id="L441" class="LineNr">441 </span> <span class="Conceal">¦</span> <span class="Comment"># now check the list</span> -<span id="L442" class="LineNr">442 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L443" class="LineNr">443 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L444" class="LineNr">444 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L445" class="LineNr">445 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L446" class="LineNr">446 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L447" class="LineNr">447 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L448" class="LineNr">448 </span> ] -<span id="L449" class="LineNr">449 </span> <span class="Comment"># no change</span> -<span id="L450" class="LineNr">450 </span> memory-should-contain [ -<span id="L451" class="LineNr">451 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 13</span> -<span id="L452" class="LineNr">452 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 14</span> -<span id="L453" class="LineNr">453 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 15</span> -<span id="L454" class="LineNr">454 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> -<span id="L455" class="LineNr">455 </span> ] -<span id="L456" class="LineNr">456 </span>] -<span id="L457" class="LineNr">457 </span> -<span id="L458" class="LineNr">458 </span><span class="muScenario">scenario</span> remove-range-to-end [ -<span id="L459" class="LineNr">459 </span> <span class="Constant">local-scope</span> -<span id="L460" class="LineNr">460 </span> <span class="Comment"># construct a duplex list with six elements [13, 14, 15, 16, 17, 18]</span> -<span id="L461" class="LineNr">461 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span> -<span id="L462" class="LineNr">462 </span> list <span class="Special"><-</span> push<span class="Constant"> 17</span>, list -<span id="L463" class="LineNr">463 </span> list <span class="Special"><-</span> push<span class="Constant"> 16</span>, list -<span id="L464" class="LineNr">464 </span> list <span class="Special"><-</span> push<span class="Constant"> 15</span>, list -<span id="L465" class="LineNr">465 </span> list <span class="Special"><-</span> push<span class="Constant"> 14</span>, list -<span id="L466" class="LineNr">466 </span> list <span class="Special"><-</span> push<span class="Constant"> 13</span>, list -<span id="L467" class="LineNr">467 </span> run [ -<span id="L468" class="LineNr">468 </span> <span class="Conceal">¦</span> <span class="Comment"># remove the third element and beyond</span> -<span id="L469" class="LineNr">469 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L470" class="LineNr">470 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L345'>remove-between</a> list2,<span class="Constant"> 0</span> -<span id="L471" class="LineNr">471 </span> <span class="Conceal">¦</span> <span class="Comment"># now check the list</span> -<span id="L472" class="LineNr">472 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L473" class="LineNr">473 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L474" class="LineNr">474 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> -<span id="L475" class="LineNr">475 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list -<span id="L476" class="LineNr">476 </span> ] -<span id="L477" class="LineNr">477 </span> memory-should-contain [ -<span id="L478" class="LineNr">478 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 13</span> -<span id="L479" class="LineNr">479 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 14</span> -<span id="L480" class="LineNr">480 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> -<span id="L481" class="LineNr">481 </span> ] -<span id="L482" class="LineNr">482 </span>] -<span id="L483" class="LineNr">483 </span> -<span id="L484" class="LineNr">484 </span><span class="Comment"># insert list beginning at 'new' after 'in'</span> -<span id="L485" class="LineNr">485 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L485'>insert-range</a> in:&:duplex-list:_elem, start:&:duplex-list:_elem/contained-in:in<span class="muRecipe"> -> </span>in:&:duplex-list:_elem [ -<span id="L486" class="LineNr">486 </span> <span class="Constant">local-scope</span> -<span id="L487" class="LineNr">487 </span> <span class="Constant">load-ingredients</span> -<span id="L488" class="LineNr">488 </span> <span class="muControl">return-unless</span> in -<span id="L489" class="LineNr">489 </span> <span class="muControl">return-unless</span> start -<span id="L490" class="LineNr">490 </span> end:&:duplex-list:_elem <span class="Special"><-</span> copy start -<span id="L491" class="LineNr">491 </span> <span class="Delimiter">{</span> -<span id="L492" class="LineNr">492 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L29'>next</a>:&:duplex-list:_elem <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> end/insert-range -<span id="L493" class="LineNr">493 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='065duplex_list.mu.html#L29'>next</a> -<span id="L494" class="LineNr">494 </span> <span class="Conceal">¦</span> end <span class="Special"><-</span> copy <a href='065duplex_list.mu.html#L29'>next</a> -<span id="L495" class="LineNr">495 </span> <span class="Conceal">¦</span> <span class="muControl">loop</span> -<span id="L496" class="LineNr">496 </span> <span class="Delimiter">}</span> -<span id="L497" class="LineNr">497 </span> <a href='065duplex_list.mu.html#L29'>next</a>:&:duplex-list:_elem <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> in -<span id="L498" class="LineNr">498 </span> *end <span class="Special"><-</span> put *end, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, <a href='065duplex_list.mu.html#L29'>next</a> -<span id="L499" class="LineNr">499 </span> <span class="Delimiter">{</span> -<span id="L500" class="LineNr">500 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='065duplex_list.mu.html#L29'>next</a> -<span id="L501" class="LineNr">501 </span> <span class="Conceal">¦</span> *next <span class="Special"><-</span> put *next, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, end -<span id="L502" class="LineNr">502 </span> <span class="Delimiter">}</span> -<span id="L503" class="LineNr">503 </span> *in <span class="Special"><-</span> put *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, start -<span id="L504" class="LineNr">504 </span> *start <span class="Special"><-</span> put *start, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, in -<span id="L505" class="LineNr">505 </span>] -<span id="L506" class="LineNr">506 </span> -<span id="L507" class="LineNr">507 </span><span class="muRecipe">def</span> append in:&:duplex-list:_elem, new:&:duplex-list:_elem/contained-in:in<span class="muRecipe"> -> </span>in:&:duplex-list:_elem [ -<span id="L508" class="LineNr">508 </span> <span class="Constant">local-scope</span> -<span id="L509" class="LineNr">509 </span> <span class="Constant">load-ingredients</span> -<span id="L510" class="LineNr">510 </span> <a href='065duplex_list.mu.html#L516'>last</a>:&:duplex-list:_elem <span class="Special"><-</span> <a href='065duplex_list.mu.html#L516'>last</a> in -<span id="L511" class="LineNr">511 </span> *last <span class="Special"><-</span> put *last, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, new -<span id="L512" class="LineNr">512 </span> <span class="muControl">return-unless</span> new -<span id="L513" class="LineNr">513 </span> *new <span class="Special"><-</span> put *new, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, <a href='065duplex_list.mu.html#L516'>last</a> -<span id="L514" class="LineNr">514 </span>] -<span id="L515" class="LineNr">515 </span> -<span id="L516" class="LineNr">516 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L516'>last</a> in:&:duplex-list:_elem<span class="muRecipe"> -> </span>result:&:duplex-list:_elem [ -<span id="L517" class="LineNr">517 </span> <span class="Constant">local-scope</span> -<span id="L518" class="LineNr">518 </span> <span class="Constant">load-ingredients</span> -<span id="L519" class="LineNr">519 </span> result <span class="Special"><-</span> copy in -<span id="L520" class="LineNr">520 </span> <span class="Delimiter">{</span> -<span id="L521" class="LineNr">521 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L29'>next</a>:&:duplex-list:_elem <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> result -<span id="L522" class="LineNr">522 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='065duplex_list.mu.html#L29'>next</a> -<span id="L523" class="LineNr">523 </span> <span class="Conceal">¦</span> result <span class="Special"><-</span> copy <a href='065duplex_list.mu.html#L29'>next</a> -<span id="L524" class="LineNr">524 </span> <span class="Conceal">¦</span> <span class="muControl">loop</span> -<span id="L525" class="LineNr">525 </span> <span class="Delimiter">}</span> +<span id="L340" class="LineNr">340 </span><span class="muScenario">scenario</span> removing-from-singleton-duplex-list [ +<span id="L341" class="LineNr">341 </span> <span class="Constant">local-scope</span> +<span id="L342" class="LineNr">342 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span> +<span id="L343" class="LineNr">343 </span> run [ +<span id="L344" class="LineNr">344 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> remove list, list +<span id="L345" class="LineNr">345 </span> <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span> <span class="Special"><-</span> copy list +<span id="L346" class="LineNr">346 </span> ] +<span id="L347" class="LineNr">347 </span> memory-should-contain [ +<span id="L348" class="LineNr">348 </span> <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># back to an empty list</span> +<span id="L349" class="LineNr">349 </span> ] +<span id="L350" class="LineNr">350 </span>] +<span id="L351" class="LineNr">351 </span> +<span id="L352" class="LineNr">352 </span><span class="Comment"># remove values between 'start' and 'end' (both exclusive).</span> +<span id="L353" class="LineNr">353 </span><span class="Comment"># also clear pointers back out from start/end for hygiene.</span> +<span id="L354" class="LineNr">354 </span><span class="Comment"># set end to 0 to delete everything past start.</span> +<span id="L355" class="LineNr">355 </span><span class="Comment"># can't set start to 0 to delete everything before end, because there's no</span> +<span id="L356" class="LineNr">356 </span><span class="Comment"># clean way to return the new head pointer.</span> +<span id="L357" class="LineNr">357 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> start:&:duplex-list:_elem, end:&:duplex-list:_elem/contained-in:start<span class="muRecipe"> -> </span>start:&:duplex-list:_elem [ +<span id="L358" class="LineNr">358 </span> <span class="Constant">local-scope</span> +<span id="L359" class="LineNr">359 </span> <span class="Constant">load-ingredients</span> +<span id="L360" class="LineNr">360 </span> <a href='065duplex_list.mu.html#L29'>next</a>:&:duplex-list:_elem <span class="Special"><-</span> get *start, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span> +<span id="L361" class="LineNr">361 </span> nothing-to-delete?:bool <span class="Special"><-</span> equal <a href='065duplex_list.mu.html#L29'>next</a>, end +<span id="L362" class="LineNr">362 </span> <span class="muControl">return-if</span> nothing-to-delete? +<span id="L363" class="LineNr">363 </span> assert <a href='065duplex_list.mu.html#L29'>next</a>, <span class="Constant">[malformed duplex list]</span> +<span id="L364" class="LineNr">364 </span> <span class="Comment"># start->next->prev = 0</span> +<span id="L365" class="LineNr">365 </span> <span class="Comment"># start->next = end</span> +<span id="L366" class="LineNr">366 </span> *next <span class="Special"><-</span> put *next, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>,<span class="Constant"> 0</span> +<span id="L367" class="LineNr">367 </span> *start <span class="Special"><-</span> put *start, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, end +<span id="L368" class="LineNr">368 </span> <span class="muControl">return-unless</span> end +<span id="L369" class="LineNr">369 </span> <span class="Comment"># end->prev->next = 0</span> +<span id="L370" class="LineNr">370 </span> <span class="Comment"># end->prev = start</span> +<span id="L371" class="LineNr">371 </span> <a href='065duplex_list.mu.html#L36'>prev</a>:&:duplex-list:_elem <span class="Special"><-</span> get *end, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span> +<span id="L372" class="LineNr">372 </span> assert <a href='065duplex_list.mu.html#L36'>prev</a>, <span class="Constant">[malformed duplex list - 2]</span> +<span id="L373" class="LineNr">373 </span> *prev <span class="Special"><-</span> put *prev, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>,<span class="Constant"> 0</span> +<span id="L374" class="LineNr">374 </span> *end <span class="Special"><-</span> put *end, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, start +<span id="L375" class="LineNr">375 </span>] +<span id="L376" class="LineNr">376 </span> +<span id="L377" class="LineNr">377 </span><span class="muScenario">scenario</span> remove-range [ +<span id="L378" class="LineNr">378 </span> <span class="Comment"># construct a duplex list with six elements [13, 14, 15, 16, 17, 18]</span> +<span id="L379" class="LineNr">379 </span> <span class="Constant">local-scope</span> +<span id="L380" class="LineNr">380 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span> +<span id="L381" class="LineNr">381 </span> list <span class="Special"><-</span> push<span class="Constant"> 17</span>, list +<span id="L382" class="LineNr">382 </span> list <span class="Special"><-</span> push<span class="Constant"> 16</span>, list +<span id="L383" class="LineNr">383 </span> list <span class="Special"><-</span> push<span class="Constant"> 15</span>, list +<span id="L384" class="LineNr">384 </span> list <span class="Special"><-</span> push<span class="Constant"> 14</span>, list +<span id="L385" class="LineNr">385 </span> list <span class="Special"><-</span> push<span class="Constant"> 13</span>, list +<span id="L386" class="LineNr">386 </span> run [ +<span id="L387" class="LineNr">387 </span> <span class="Conceal">¦</span> <span class="Comment"># delete 16 onwards</span> +<span id="L388" class="LineNr">388 </span> <span class="Conceal">¦</span> <span class="Comment"># first pointer: to the third element</span> +<span id="L389" class="LineNr">389 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L390" class="LineNr">390 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L391" class="LineNr">391 </span> <span class="Conceal">¦</span> list2 <span class="Special"><-</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> list2,<span class="Constant"> 0</span> +<span id="L392" class="LineNr">392 </span> <span class="Conceal">¦</span> <span class="Comment"># now check the list</span> +<span id="L393" class="LineNr">393 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L394" class="LineNr">394 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L395" class="LineNr">395 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L396" class="LineNr">396 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L397" class="LineNr">397 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L398" class="LineNr">398 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L399" class="LineNr">399 </span> ] +<span id="L400" class="LineNr">400 </span> memory-should-contain [ +<span id="L401" class="LineNr">401 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 13</span> +<span id="L402" class="LineNr">402 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 14</span> +<span id="L403" class="LineNr">403 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 15</span> +<span id="L404" class="LineNr">404 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> +<span id="L405" class="LineNr">405 </span> ] +<span id="L406" class="LineNr">406 </span>] +<span id="L407" class="LineNr">407 </span> +<span id="L408" class="LineNr">408 </span><span class="muScenario">scenario</span> remove-range-to-final [ +<span id="L409" class="LineNr">409 </span> <span class="Constant">local-scope</span> +<span id="L410" class="LineNr">410 </span> <span class="Comment"># construct a duplex list with six elements [13, 14, 15, 16, 17, 18]</span> +<span id="L411" class="LineNr">411 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span> +<span id="L412" class="LineNr">412 </span> list <span class="Special"><-</span> push<span class="Constant"> 17</span>, list +<span id="L413" class="LineNr">413 </span> list <span class="Special"><-</span> push<span class="Constant"> 16</span>, list +<span id="L414" class="LineNr">414 </span> list <span class="Special"><-</span> push<span class="Constant"> 15</span>, list +<span id="L415" class="LineNr">415 </span> list <span class="Special"><-</span> push<span class="Constant"> 14</span>, list +<span id="L416" class="LineNr">416 </span> list <span class="Special"><-</span> push<span class="Constant"> 13</span>, list +<span id="L417" class="LineNr">417 </span> run [ +<span id="L418" class="LineNr">418 </span> <span class="Conceal">¦</span> <span class="Comment"># delete 15, 16 and 17</span> +<span id="L419" class="LineNr">419 </span> <span class="Conceal">¦</span> <span class="Comment"># start pointer: to the second element</span> +<span id="L420" class="LineNr">420 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L421" class="LineNr">421 </span> <span class="Conceal">¦</span> <span class="Comment"># end pointer: to the last (sixth) element</span> +<span id="L422" class="LineNr">422 </span> <span class="Conceal">¦</span> end:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2 +<span id="L423" class="LineNr">423 </span> <span class="Conceal">¦</span> end <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> end +<span id="L424" class="LineNr">424 </span> <span class="Conceal">¦</span> end <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> end +<span id="L425" class="LineNr">425 </span> <span class="Conceal">¦</span> end <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> end +<span id="L426" class="LineNr">426 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> list2, end +<span id="L427" class="LineNr">427 </span> <span class="Conceal">¦</span> <span class="Comment"># now check the list</span> +<span id="L428" class="LineNr">428 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L429" class="LineNr">429 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L430" class="LineNr">430 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L431" class="LineNr">431 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L432" class="LineNr">432 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L433" class="LineNr">433 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L434" class="LineNr">434 </span> ] +<span id="L435" class="LineNr">435 </span> memory-should-contain [ +<span id="L436" class="LineNr">436 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 13</span> +<span id="L437" class="LineNr">437 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 14</span> +<span id="L438" class="LineNr">438 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 18</span> +<span id="L439" class="LineNr">439 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> <span class="Comment"># no more elements</span> +<span id="L440" class="LineNr">440 </span> ] +<span id="L441" class="LineNr">441 </span>] +<span id="L442" class="LineNr">442 </span> +<span id="L443" class="LineNr">443 </span><span class="muScenario">scenario</span> remove-range-empty [ +<span id="L444" class="LineNr">444 </span> <span class="Constant">local-scope</span> +<span id="L445" class="LineNr">445 </span> <span class="Comment"># construct a duplex list with three elements [13, 14, 15]</span> +<span id="L446" class="LineNr">446 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 15</span>,<span class="Constant"> 0</span> +<span id="L447" class="LineNr">447 </span> list <span class="Special"><-</span> push<span class="Constant"> 14</span>, list +<span id="L448" class="LineNr">448 </span> list <span class="Special"><-</span> push<span class="Constant"> 13</span>, list +<span id="L449" class="LineNr">449 </span> run [ +<span id="L450" class="LineNr">450 </span> <span class="Conceal">¦</span> <span class="Comment"># delete between first and second element (i.e. nothing)</span> +<span id="L451" class="LineNr">451 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L452" class="LineNr">452 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> list, list2 +<span id="L453" class="LineNr">453 </span> <span class="Conceal">¦</span> <span class="Comment"># now check the list</span> +<span id="L454" class="LineNr">454 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L455" class="LineNr">455 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L456" class="LineNr">456 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L457" class="LineNr">457 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L458" class="LineNr">458 </span> <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L459" class="LineNr">459 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L460" class="LineNr">460 </span> ] +<span id="L461" class="LineNr">461 </span> <span class="Comment"># no change</span> +<span id="L462" class="LineNr">462 </span> memory-should-contain [ +<span id="L463" class="LineNr">463 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 13</span> +<span id="L464" class="LineNr">464 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 14</span> +<span id="L465" class="LineNr">465 </span> <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special"><-</span><span class="Constant"> 15</span> +<span id="L466" class="LineNr">466 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> +<span id="L467" class="LineNr">467 </span> ] +<span id="L468" class="LineNr">468 </span>] +<span id="L469" class="LineNr">469 </span> +<span id="L470" class="LineNr">470 </span><span class="muScenario">scenario</span> remove-range-to-end [ +<span id="L471" class="LineNr">471 </span> <span class="Constant">local-scope</span> +<span id="L472" class="LineNr">472 </span> <span class="Comment"># construct a duplex list with six elements [13, 14, 15, 16, 17, 18]</span> +<span id="L473" class="LineNr">473 </span> list:&:duplex-list:char <span class="Special"><-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span> +<span id="L474" class="LineNr">474 </span> list <span class="Special"><-</span> push<span class="Constant"> 17</span>, list +<span id="L475" class="LineNr">475 </span> list <span class="Special"><-</span> push<span class="Constant"> 16</span>, list +<span id="L476" class="LineNr">476 </span> list <span class="Special"><-</span> push<span class="Constant"> 15</span>, list +<span id="L477" class="LineNr">477 </span> list <span class="Special"><-</span> push<span class="Constant"> 14</span>, list +<span id="L478" class="LineNr">478 </span> list <span class="Special"><-</span> push<span class="Constant"> 13</span>, list +<span id="L479" class="LineNr">479 </span> run [ +<span id="L480" class="LineNr">480 </span> <span class="Conceal">¦</span> <span class="Comment"># remove the third element and beyond</span> +<span id="L481" class="LineNr">481 </span> <span class="Conceal">¦</span> list2:&:duplex-list:char <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L482" class="LineNr">482 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> list2,<span class="Constant"> 0</span> +<span id="L483" class="LineNr">483 </span> <span class="Conceal">¦</span> <span class="Comment"># now check the list</span> +<span id="L484" class="LineNr">484 </span> <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L485" class="LineNr">485 </span> <span class="Conceal">¦</span> list <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L486" class="LineNr">486 </span> <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special"><-</span> get *list, <span class="Constant">value:offset</span> +<span id="L487" class="LineNr">487 </span> <span class="Conceal">¦</span> 20:&:duplex-list:char/<span class="Special">raw</span> <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> list +<span id="L488" class="LineNr">488 </span> ] +<span id="L489" class="LineNr">489 </span> memory-should-contain [ +<span id="L490" class="LineNr">490 </span> <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special"><-</span><span class="Constant"> 13</span> +<span id="L491" class="LineNr">491 </span> <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special"><-</span><span class="Constant"> 14</span> +<span id="L492" class="LineNr">492 </span> <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special"><-</span><span class="Constant"> 0</span> +<span id="L493" class="LineNr">493 </span> ] +<span id="L494" class="LineNr">494 </span>] +<span id="L495" class="LineNr">495 </span> +<span id="L496" class="LineNr">496 </span><span class="Comment"># insert list beginning at 'new' after 'in'</span> +<span id="L497" class="LineNr">497 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L497'>insert-range</a> in:&:duplex-list:_elem, start:&:duplex-list:_elem/contained-in:in<span class="muRecipe"> -> </span>in:&:duplex-list:_elem [ +<span id="L498" class="LineNr">498 </span> <span class="Constant">local-scope</span> +<span id="L499" class="LineNr">499 </span> <span class="Constant">load-ingredients</span> +<span id="L500" class="LineNr">500 </span> <span class="muControl">return-unless</span> in +<span id="L501" class="LineNr">501 </span> <span class="muControl">return-unless</span> start +<span id="L502" class="LineNr">502 </span> end:&:duplex-list:_elem <span class="Special"><-</span> copy start +<span id="L503" class="LineNr">503 </span> <span class="Delimiter">{</span> +<span id="L504" class="LineNr">504 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L29'>next</a>:&:duplex-list:_elem <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> end/insert-range +<span id="L505" class="LineNr">505 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='065duplex_list.mu.html#L29'>next</a> +<span id="L506" class="LineNr">506 </span> <span class="Conceal">¦</span> end <span class="Special"><-</span> copy <a href='065duplex_list.mu.html#L29'>next</a> +<span id="L507" class="LineNr">507 </span> <span class="Conceal">¦</span> <span class="muControl">loop</span> +<span id="L508" class="LineNr">508 </span> <span class="Delimiter">}</span> +<span id="L509" class="LineNr">509 </span> <a href='065duplex_list.mu.html#L29'>next</a>:&:duplex-list:_elem <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> in +<span id="L510" class="LineNr">510 </span> *end <span class="Special"><-</span> put *end, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, <a href='065duplex_list.mu.html#L29'>next</a> +<span id="L511" class="LineNr">511 </span> <span class="Delimiter">{</span> +<span id="L512" class="LineNr">512 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='065duplex_list.mu.html#L29'>next</a> +<span id="L513" class="LineNr">513 </span> <span class="Conceal">¦</span> *next <span class="Special"><-</span> put *next, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, end +<span id="L514" class="LineNr">514 </span> <span class="Delimiter">}</span> +<span id="L515" class="LineNr">515 </span> *in <span class="Special"><-</span> put *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, start +<span id="L516" class="LineNr">516 </span> *start <span class="Special"><-</span> put *start, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, in +<span id="L517" class="LineNr">517 </span>] +<span id="L518" class="LineNr">518 </span> +<span id="L519" class="LineNr">519 </span><span class="muRecipe">def</span> append in:&:duplex-list:_elem, new:&:duplex-list:_elem/contained-in:in<span class="muRecipe"> -> </span>in:&:duplex-list:_elem [ +<span id="L520" class="LineNr">520 </span> <span class="Constant">local-scope</span> +<span id="L521" class="LineNr">521 </span> <span class="Constant">load-ingredients</span> +<span id="L522" class="LineNr">522 </span> <a href='065duplex_list.mu.html#L528'>last</a>:&:duplex-list:_elem <span class="Special"><-</span> <a href='065duplex_list.mu.html#L528'>last</a> in +<span id="L523" class="LineNr">523 </span> *last <span class="Special"><-</span> put *last, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, new +<span id="L524" class="LineNr">524 </span> <span class="muControl">return-unless</span> new +<span id="L525" class="LineNr">525 </span> *new <span class="Special"><-</span> put *new, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, <a href='065duplex_list.mu.html#L528'>last</a> <span id="L526" class="LineNr">526 </span>] <span id="L527" class="LineNr">527 </span> -<span id="L528" class="LineNr">528 </span><span class="Comment"># helper for debugging</span> -<span id="L529" class="LineNr">529 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L529'>dump-from</a> x:&:duplex-list:_elem [ -<span id="L530" class="LineNr">530 </span> <span class="Constant">local-scope</span> -<span id="L531" class="LineNr">531 </span> <span class="Constant">load-ingredients</span> -<span id="L532" class="LineNr">532 </span> $print x, <span class="Constant">[: ]</span> -<span id="L533" class="LineNr">533 </span> <span class="Delimiter">{</span> -<span id="L534" class="LineNr">534 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> x -<span id="L535" class="LineNr">535 </span> <span class="Conceal">¦</span> c:_elem <span class="Special"><-</span> get *x, <span class="Constant">value:offset</span> -<span id="L536" class="LineNr">536 </span> <span class="Conceal">¦</span> $print c, <span class="Constant">[ ]</span> -<span id="L537" class="LineNr">537 </span> <span class="Conceal">¦</span> x <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> x -<span id="L538" class="LineNr">538 </span> <span class="Conceal">¦</span> <span class="Delimiter">{</span> -<span id="L539" class="LineNr">539 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> is-newline?:bool <span class="Special"><-</span> equal c, <span class="Constant">10/newline</span> -<span id="L540" class="LineNr">540 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> is-newline? -<span id="L541" class="LineNr">541 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> $print <span class="Constant">10/newline</span> -<span id="L542" class="LineNr">542 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> $print x, <span class="Constant">[: ]</span> -<span id="L543" class="LineNr">543 </span> <span class="Conceal">¦</span> <span class="Delimiter">}</span> -<span id="L544" class="LineNr">544 </span> <span class="Conceal">¦</span> <span class="muControl">loop</span> -<span id="L545" class="LineNr">545 </span> <span class="Delimiter">}</span> -<span id="L546" class="LineNr">546 </span> $print <span class="Constant">10/newline</span>, <span class="Constant">[---]</span>, <span class="Constant">10/newline</span> -<span id="L547" class="LineNr">547 </span>] +<span id="L528" class="LineNr">528 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L528'>last</a> in:&:duplex-list:_elem<span class="muRecipe"> -> </span>result:&:duplex-list:_elem [ +<span id="L529" class="LineNr">529 </span> <span class="Constant">local-scope</span> +<span id="L530" class="LineNr">530 </span> <span class="Constant">load-ingredients</span> +<span id="L531" class="LineNr">531 </span> result <span class="Special"><-</span> copy in +<span id="L532" class="LineNr">532 </span> <span class="Delimiter">{</span> +<span id="L533" class="LineNr">533 </span> <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L29'>next</a>:&:duplex-list:_elem <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> result +<span id="L534" class="LineNr">534 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='065duplex_list.mu.html#L29'>next</a> +<span id="L535" class="LineNr">535 </span> <span class="Conceal">¦</span> result <span class="Special"><-</span> copy <a href='065duplex_list.mu.html#L29'>next</a> +<span id="L536" class="LineNr">536 </span> <span class="Conceal">¦</span> <span class="muControl">loop</span> +<span id="L537" class="LineNr">537 </span> <span class="Delimiter">}</span> +<span id="L538" class="LineNr">538 </span>] +<span id="L539" class="LineNr">539 </span> +<span id="L540" class="LineNr">540 </span><span class="Comment"># helper for debugging</span> +<span id="L541" class="LineNr">541 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L541'>dump-from</a> x:&:duplex-list:_elem [ +<span id="L542" class="LineNr">542 </span> <span class="Constant">local-scope</span> +<span id="L543" class="LineNr">543 </span> <span class="Constant">load-ingredients</span> +<span id="L544" class="LineNr">544 </span> $print x, <span class="Constant">[: ]</span> +<span id="L545" class="LineNr">545 </span> <span class="Delimiter">{</span> +<span id="L546" class="LineNr">546 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> x +<span id="L547" class="LineNr">547 </span> <span class="Conceal">¦</span> c:_elem <span class="Special"><-</span> get *x, <span class="Constant">value:offset</span> +<span id="L548" class="LineNr">548 </span> <span class="Conceal">¦</span> $print c, <span class="Constant">[ ]</span> +<span id="L549" class="LineNr">549 </span> <span class="Conceal">¦</span> x <span class="Special"><-</span> <a href='065duplex_list.mu.html#L29'>next</a> x +<span id="L550" class="LineNr">550 </span> <span class="Conceal">¦</span> <span class="Delimiter">{</span> +<span id="L551" class="LineNr">551 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> is-newline?:bool <span class="Special"><-</span> equal c, <span class="Constant">10/newline</span> +<span id="L552" class="LineNr">552 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> is-newline? +<span id="L553" class="LineNr">553 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> $print <span class="Constant">10/newline</span> +<span id="L554" class="LineNr">554 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> $print x, <span class="Constant">[: ]</span> +<span id="L555" class="LineNr">555 </span> <span class="Conceal">¦</span> <span class="Delimiter">}</span> +<span id="L556" class="LineNr">556 </span> <span class="Conceal">¦</span> <span class="muControl">loop</span> +<span id="L557" class="LineNr">557 </span> <span class="Delimiter">}</span> +<span id="L558" class="LineNr">558 </span> $print <span class="Constant">10/newline</span>, <span class="Constant">[---]</span>, <span class="Constant">10/newline</span> +<span id="L559" class="LineNr">559 </span>] </pre> </body> </html> diff --git a/html/edit/003-shortcuts.mu.html b/html/edit/003-shortcuts.mu.html index dfac13b1..bbe7dd40 100644 --- a/html/edit/003-shortcuts.mu.html +++ b/html/edit/003-shortcuts.mu.html @@ -1738,7 +1738,7 @@ if ('onhashchange' in window) { <span id="L1676" class="LineNr">1676 </span> <span class="Delimiter">}</span> <span id="L1677" class="LineNr">1677 </span> <span class="Comment"># snip it out</span> <span id="L1678" class="LineNr">1678 </span> result:&:duplex-list:char <span class="Special"><-</span> <a href='../065duplex_list.mu.html#L29'>next</a> start -<span id="L1679" class="LineNr">1679 </span> <a href='../065duplex_list.mu.html#L345'>remove-between</a> start, end +<span id="L1679" class="LineNr">1679 </span> <a href='../065duplex_list.mu.html#L357'>remove-between</a> start, end <span id="L1680" class="LineNr">1680 </span> <span class="Comment"># adjust cursor</span> <span id="L1681" class="LineNr">1681 </span> before-cursor <span class="Special"><-</span> copy start <span id="L1682" class="LineNr">1682 </span> *editor <span class="Special"><-</span> put *editor, <span class="Constant">before-cursor:offset</span>, before-cursor @@ -1872,7 +1872,7 @@ if ('onhashchange' in window) { <span id="L1810" class="LineNr">1810 </span> <span class="Delimiter">}</span> <span id="L1811" class="LineNr">1811 </span> <span class="Comment"># snip it out</span> <span id="L1812" class="LineNr">1812 </span> result <span class="Special"><-</span> <a href='../065duplex_list.mu.html#L29'>next</a> start -<span id="L1813" class="LineNr">1813 </span> <a href='../065duplex_list.mu.html#L345'>remove-between</a> start, end +<span id="L1813" class="LineNr">1813 </span> <a href='../065duplex_list.mu.html#L357'>remove-between</a> start, end <span id="L1814" class="LineNr">1814 </span>] <span id="L1815" class="LineNr">1815 </span> <span id="L1816" class="LineNr">1816 </span><span class="muScenario">scenario</span> editor-deletes-to-end-of-line-with-ctrl-k-2 [ @@ -2860,8 +2860,8 @@ if ('onhashchange' in window) { <span id="L2798" class="LineNr">2798 </span> *editor <span class="Special"><-</span> put *editor, <span class="Constant">before-cursor:offset</span>, before-cursor <span id="L2799" class="LineNr">2799 </span> <span class="Comment"># keep one line in common with previous page</span> <span id="L2800" class="LineNr">2800 </span> <span class="Delimiter">{</span> -<span id="L2801" class="LineNr">2801 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L516'>last</a>:char <span class="Special"><-</span> get *before-cursor, <span class="Constant">value:offset</span> -<span id="L2802" class="LineNr">2802 </span> <span class="Conceal">¦</span> newline?:bool <span class="Special"><-</span> equal <a href='../065duplex_list.mu.html#L516'>last</a>, <span class="Constant">10/newline</span> +<span id="L2801" class="LineNr">2801 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L528'>last</a>:char <span class="Special"><-</span> get *before-cursor, <span class="Constant">value:offset</span> +<span id="L2802" class="LineNr">2802 </span> <span class="Conceal">¦</span> newline?:bool <span class="Special"><-</span> equal <a href='../065duplex_list.mu.html#L528'>last</a>, <span class="Constant">10/newline</span> <span id="L2803" class="LineNr">2803 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> newline?:bool <span id="L2804" class="LineNr">2804 </span> <span class="Conceal">¦</span> before-cursor <span class="Special"><-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> before-cursor <span id="L2805" class="LineNr">2805 </span> <span class="Conceal">¦</span> *editor <span class="Special"><-</span> put *editor, <span class="Constant">before-cursor:offset</span>, before-cursor diff --git a/html/edit/012-editor-undo.mu.html b/html/edit/012-editor-undo.mu.html index b54e485e..5dc46385 100644 --- a/html/edit/012-editor-undo.mu.html +++ b/html/edit/012-editor-undo.mu.html @@ -280,7 +280,7 @@ if ('onhashchange' in window) { <span id="L217" class="LineNr"> 217 </span> <span class="Conceal">¦</span> <span class="Comment"># assert cursor-row/cursor-column/top-of-screen match after-row/after-column/after-top-of-screen</span> <span id="L218" class="LineNr"> 218 </span> <span class="Conceal">¦</span> before-cursor:&:duplex-list:char <span class="Special"><-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> start <span id="L219" class="LineNr"> 219 </span> <span class="Conceal">¦</span> *editor <span class="Special"><-</span> put *editor, <span class="Constant">before-cursor:offset</span>, before-cursor -<span id="L220" class="LineNr"> 220 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L345'>remove-between</a> before-cursor, end +<span id="L220" class="LineNr"> 220 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L357'>remove-between</a> before-cursor, end <span id="L221" class="LineNr"> 221 </span> <span class="Conceal">¦</span> cursor-row <span class="Special"><-</span> get typing, <span class="Constant">before-row:offset</span> <span id="L222" class="LineNr"> 222 </span> <span class="Conceal">¦</span> *editor <span class="Special"><-</span> put *editor, <span class="Constant">cursor-row:offset</span>, cursor-row <span id="L223" class="LineNr"> 223 </span> <span class="Conceal">¦</span> cursor-column <span class="Special"><-</span> get typing, <span class="Constant">before-column:offset</span> @@ -478,7 +478,7 @@ if ('onhashchange' in window) { <span id="L415" class="LineNr"> 415 </span> <span class="Conceal">¦</span> before-cursor <span class="Special"><-</span> get *editor, <span class="Constant">before-cursor:offset</span> <span id="L416" class="LineNr"> 416 </span> <span class="Conceal">¦</span> insert-from:&:duplex-list:char <span class="Special"><-</span> get typing, <span class="Constant">insert-from:offset</span> <span class="Comment"># ignore insert-to because it's already been spliced away</span> <span id="L417" class="LineNr"> 417 </span> <span class="Conceal">¦</span> <span class="Comment"># assert insert-to matches next(before-cursor)</span> -<span id="L418" class="LineNr"> 418 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L485'>insert-range</a> before-cursor, insert-from +<span id="L418" class="LineNr"> 418 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L497'>insert-range</a> before-cursor, insert-from <span id="L419" class="LineNr"> 419 </span> <span class="Conceal">¦</span> <span class="Comment"># assert cursor-row/cursor-column/top-of-screen match after-row/after-column/after-top-of-screen</span> <span id="L420" class="LineNr"> 420 </span> <span class="Conceal">¦</span> cursor-row <span class="Special"><-</span> get typing, <span class="Constant">after-row:offset</span> <span id="L421" class="LineNr"> 421 </span> <span class="Conceal">¦</span> *editor <span class="Special"><-</span> put *editor, <span class="Constant">cursor-row:offset</span>, cursor-row @@ -1699,7 +1699,7 @@ if ('onhashchange' in window) { <span id="L1636" class="LineNr">1636 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> coalesce? <span id="L1637" class="LineNr">1637 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special"><-</span> put deletion, <span class="Constant">delete-from:offset</span>, before-cursor <span id="L1638" class="LineNr">1638 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> backspaced-so-far:&:duplex-list:char <span class="Special"><-</span> get deletion, <span class="Constant">deleted-text:offset</span> -<span id="L1639" class="LineNr">1639 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L485'>insert-range</a> backspaced-cell, backspaced-so-far +<span id="L1639" class="LineNr">1639 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L497'>insert-range</a> backspaced-cell, backspaced-so-far <span id="L1640" class="LineNr">1640 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special"><-</span> put deletion, <span class="Constant">deleted-text:offset</span>, backspaced-cell <span id="L1641" class="LineNr">1641 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special"><-</span> put deletion, <span class="Constant">after-row:offset</span>, cursor-row <span id="L1642" class="LineNr">1642 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special"><-</span> put deletion, <span class="Constant">after-column:offset</span>, cursor-column @@ -1723,8 +1723,8 @@ if ('onhashchange' in window) { <span id="L1660" class="LineNr">1660 </span> <span class="Conceal">¦</span> anchor:&:duplex-list:char <span class="Special"><-</span> get deletion, <span class="Constant">delete-from:offset</span> <span id="L1661" class="LineNr">1661 </span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> anchor <span id="L1662" class="LineNr">1662 </span> <span class="Conceal">¦</span> deleted:&:duplex-list:char <span class="Special"><-</span> get deletion, <span class="Constant">deleted-text:offset</span> -<span id="L1663" class="LineNr">1663 </span> <span class="Conceal">¦</span> old-cursor:&:duplex-list:char <span class="Special"><-</span> <a href='../065duplex_list.mu.html#L516'>last</a> deleted -<span id="L1664" class="LineNr">1664 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L485'>insert-range</a> anchor, deleted +<span id="L1663" class="LineNr">1663 </span> <span class="Conceal">¦</span> old-cursor:&:duplex-list:char <span class="Special"><-</span> <a href='../065duplex_list.mu.html#L528'>last</a> deleted +<span id="L1664" class="LineNr">1664 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L497'>insert-range</a> anchor, deleted <span id="L1665" class="LineNr">1665 </span> <span class="Conceal">¦</span> <span class="Comment"># assert cursor-row/cursor-column/top-of-screen match after-row/after-column/after-top-of-screen</span> <span id="L1666" class="LineNr">1666 </span> <span class="Conceal">¦</span> before-cursor <span class="Special"><-</span> copy old-cursor <span id="L1667" class="LineNr">1667 </span> <span class="Conceal">¦</span> cursor-row <span class="Special"><-</span> get deletion, <span class="Constant">before-row:offset</span> @@ -1743,7 +1743,7 @@ if ('onhashchange' in window) { <span id="L1680" class="LineNr">1680 </span> <span class="Conceal">¦</span> start:&:duplex-list:char <span class="Special"><-</span> get deletion, <span class="Constant">delete-from:offset</span> <span id="L1681" class="LineNr">1681 </span> <span class="Conceal">¦</span> end:&:duplex-list:char <span class="Special"><-</span> get deletion, <span class="Constant">delete-until:offset</span> <span id="L1682" class="LineNr">1682 </span> <span class="Conceal">¦</span> data:&:duplex-list:char <span class="Special"><-</span> get *editor, <span class="Constant">data:offset</span> -<span id="L1683" class="LineNr">1683 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L345'>remove-between</a> start, end +<span id="L1683" class="LineNr">1683 </span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L357'>remove-between</a> start, end <span id="L1684" class="LineNr">1684 </span> <span class="Conceal">¦</span> <span class="Comment"># assert cursor-row/cursor-column/top-of-screen match after-row/after-column/after-top-of-screen</span> <span id="L1685" class="LineNr">1685 </span> <span class="Conceal">¦</span> cursor-row <span class="Special"><-</span> get deletion, <span class="Constant">after-row:offset</span> <span id="L1686" class="LineNr">1686 </span> <span class="Conceal">¦</span> *editor <span class="Special"><-</span> put *editor, <span class="Constant">cursor-row:offset</span>, cursor-row |