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<a name="L1"></a><span id="L1" class="LineNr"> 1 </span><span class="Comment">// So far instructions can only contain linear lists of properties. Now we add</span>
<a name="L2"></a><span id="L2" class="LineNr"> 2 </span><span class="Comment">// support for more complex trees of properties in dilated reagents. This will</span>
<a name="L3"></a><span id="L3" class="LineNr"> 3 </span><span class="Comment">// come in handy later for expressing complex types, like "a dictionary from</span>
<a name="L4"></a><span id="L4" class="LineNr"> 4 </span><span class="Comment">// (address to array of charaters) to (list of numbers)".</span>
<a name="L5"></a><span id="L5" class="LineNr"> 5 </span><span class="Comment">//</span>
<a name="L6"></a><span id="L6" class="LineNr"> 6 </span><span class="Comment">// Type trees aren't as general as s-expressions even if they look like them:</span>
<a name="L7"></a><span id="L7" class="LineNr"> 7 </span><span class="Comment">// the first element of a type tree is always an atom, and it can never be</span>
<a name="L8"></a><span id="L8" class="LineNr"> 8 </span><span class="Comment">// dotted (right->right->right->...->right is always NULL).</span>
<a name="L9"></a><span id="L9" class="LineNr"> 9 </span><span class="Comment">//</span>
<a name="L10"></a><span id="L10" class="LineNr"> 10 </span><span class="Comment">// For now you can't use the simpler 'colon-based' representation inside type</span>
<a name="L11"></a><span id="L11" class="LineNr"> 11 </span><span class="Comment">// trees. Once you start typing parens, keep on typing parens.</span>
<a name="L12"></a><span id="L12" class="LineNr"> 12 </span>
<a name="L13"></a><span id="L13" class="LineNr"> 13 </span><span class="Delimiter">:(scenarios load)</span>
<a name="L14"></a><span id="L14" class="LineNr"> 14 </span><span class="Delimiter">:(scenario dilated_reagent_with_nested_brackets)</span>
<a name="L15"></a><span id="L15" class="LineNr"> 15 </span><span class="muRecipe">def</span> main [
<a name="L16"></a><span id="L16" class="LineNr"> 16 </span> <span class="Delimiter">{</span><span class="Constant">1</span>: number<span class="Delimiter">,</span> foo: <span class="Delimiter">(</span>bar <span class="Delimiter">(</span>baz quux<span class="Delimiter">))}</span><span class="Special"> <- </span>copy <span class="Constant">34</span>
<a name="L17"></a><span id="L17" class="LineNr"> 17 </span>]
<a name="L18"></a><span id="L18" class="LineNr"> 18 </span><span class="traceContains">+parse: product: {1: "number", "foo": ("bar" ("baz" "quux"))}</span>
<a name="L19"></a><span id="L19" class="LineNr"> 19 </span>
<a name="L20"></a><span id="L20" class="LineNr"> 20 </span><span class="Delimiter">:(before "End Parsing Dilated Reagent Property(value)")</span>
<a name="L21"></a><span id="L21" class="LineNr"> 21 </span>value = parse_string_tree<span class="Delimiter">(</span>value<span class="Delimiter">);</span>
<a name="L22"></a><span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(before "End Parsing Dilated Reagent Type Property(type_names)")</span>
<a name="L23"></a><span id="L23" class="LineNr"> 23 </span>type_names = parse_string_tree<span class="Delimiter">(</span>type_names<span class="Delimiter">);</span>
<a name="L24"></a><span id="L24" class="LineNr"> 24 </span>
<a name="L25"></a><span id="L25" class="LineNr"> 25 </span><span class="Delimiter">:(code)</span>
<a name="L26"></a><span id="L26" class="LineNr"> 26 </span>string_tree* parse_string_tree<span class="Delimiter">(</span>string_tree* s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<a name="L27"></a><span id="L27" class="LineNr"> 27 </span> assert<span class="Delimiter">(</span>s<span class="Delimiter">-></span>atom<span class="Delimiter">);</span>
<a name="L28"></a><span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!starts_with<span class="Delimiter">(</span>s<span class="Delimiter">-></span>value<span class="Delimiter">,</span> <span class="Constant">"("</span><span class="Delimiter">))</span> <span class="Identifier">return</span> s<span class="Delimiter">;</span>
<a name="L29"></a><span id="L29" class="LineNr"> 29 </span> string_tree* result = parse_string_tree<span class="Delimiter">(</span>s<span class="Delimiter">-></span>value<span class="Delimiter">);</span>
<a name="L30"></a><span id="L30" class="LineNr"> 30 </span> <span class="Normal">delete</span> s<span class="Delimiter">;</span>
<a name="L31"></a><span id="L31" class="LineNr"> 31 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<a name="L32"></a><span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span>
<a name="L33"></a><span id="L33" class="LineNr"> 33 </span>
<a name="L34"></a><span id="L34" class="LineNr"> 34 </span>string_tree* parse_string_tree<span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<a name="L35"></a><span id="L35" class="LineNr"> 35 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span>
<a name="L36"></a><span id="L36" class="LineNr"> 36 </span> in >> std::noskipws<span class="Delimiter">;</span>
<a name="L37"></a><span id="L37" class="LineNr"> 37 </span> <span class="Identifier">return</span> parse_string_tree<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<a name="L38"></a><span id="L38" class="LineNr"> 38 </span><span class="Delimiter">}</span>
<a name="L39"></a><span id="L39" class="LineNr"> 39 </span>
<a name="L40"></a><span id="L40" class="LineNr"> 40 </span>string_tree* parse_string_tree<span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<a name="L41"></a><span id="L41" class="LineNr"> 41 </span> skip_whitespace_but_not_newline<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<a name="L42"></a><span id="L42" class="LineNr"> 42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
<a name="L43"></a><span id="L43" class="LineNr"> 43 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="Constant">')'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<a name="L44"></a><span id="L44" class="LineNr"> 44 </span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<a name="L45"></a><span id="L45" class="LineNr"> 45 </span> <span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
<a name="L46"></a><span id="L46" class="LineNr"> 46 </span> <span class="Delimiter">}</span>
<a name="L47"></a><span id="L47" class="LineNr"> 47 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="Constant">'('</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<a name="L48"></a><span id="L48" class="LineNr"> 48 </span> string s = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<a name="L49"></a><span id="L49" class="LineNr"> 49 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<a name="L50"></a><span id="L50" class="LineNr"> 50 </span> assert<span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
<a name="L51"></a><span id="L51" class="LineNr"> 51 </span> raise << <span class="Constant">"incomplete string tree at end of file (0)</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<a name="L52"></a><span id="L52" class="LineNr"> 52 </span> <span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
<a name="L53"></a><span id="L53" class="LineNr"> 53 </span> <span class="Delimiter">}</span>
<a name="L54"></a><span id="L54" class="LineNr"> 54 </span> string_tree* result = <span class="Normal">new</span> string_tree<span class="Delimiter">(</span>s<span class="Delimiter">);</span>
<a name="L55"></a><span id="L55" class="LineNr"> 55 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<a name="L56"></a><span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">}</span>
<a name="L57"></a><span id="L57" class="LineNr"> 57 </span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> <span class="Comment">// skip '('</span>
<a name="L58"></a><span id="L58" class="LineNr"> 58 </span> string_tree* result = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<a name="L59"></a><span id="L59" class="LineNr"> 59 </span> string_tree** curr = &result<span class="Delimiter">;</span>
<a name="L60"></a><span id="L60" class="LineNr"> 60 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<a name="L61"></a><span id="L61" class="LineNr"> 61 </span> skip_whitespace_but_not_newline<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<a name="L62"></a><span id="L62" class="LineNr"> 62 </span> assert<span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
<a name="L63"></a><span id="L63" class="LineNr"> 63 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="Constant">')'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<a name="L64"></a><span id="L64" class="LineNr"> 64 </span> *curr = <span class="Normal">new</span> string_tree<span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">);</span>
<a name="L65"></a><span id="L65" class="LineNr"> 65 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="Constant">'('</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<a name="L66"></a><span id="L66" class="LineNr"> 66 </span> <span class="Delimiter">(</span>*curr<span class="Delimiter">)-></span>left = parse_string_tree<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<a name="L67"></a><span id="L67" class="LineNr"> 67 </span> <span class="Delimiter">}</span>
<a name="L68"></a><span id="L68" class="LineNr"> 68 </span> <span class="Normal">else</span> <span class="Delimiter">{</span>
<a name="L69"></a><span id="L69" class="LineNr"> 69 </span> string s = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<a name="L70"></a><span id="L70" class="LineNr"> 70 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<a name="L71"></a><span id="L71" class="LineNr"> 71 </span> assert<span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
<a name="L72"></a><span id="L72" class="LineNr"> 72 </span> raise << <span class="Constant">"incomplete string tree at end of file (1)</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<a name="L73"></a><span id="L73" class="LineNr"> 73 </span> <span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
<a name="L74"></a><span id="L74" class="LineNr"> 74 </span> <span class="Delimiter">}</span>
<a name="L75"></a><span id="L75" class="LineNr"> 75 </span> <span class="Delimiter">(</span>*curr<span class="Delimiter">)-></span>left = <span class="Normal">new</span> string_tree<span class="Delimiter">(</span>s<span class="Delimiter">);</span>
<a name="L76"></a><span id="L76" class="LineNr"> 76 </span> <span class="Delimiter">}</span>
<a name="L77"></a><span id="L77" class="LineNr"> 77 </span> curr = &<span class="Delimiter">(</span>*curr<span class="Delimiter">)-></span>right<span class="Delimiter">;</span>
<a name="L78"></a><span id="L78" class="LineNr"> 78 </span> <span class="Delimiter">}</span>
<a name="L79"></a><span id="L79" class="LineNr"> 79 </span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> <span class="Comment">// skip ')'</span>
<a name="L80"></a><span id="L80" class="LineNr"> 80 </span> assert<span class="Delimiter">(</span>*curr == <span class="Constant">NULL</span><span class="Delimiter">);</span>
<a name="L81"></a><span id="L81" class="LineNr"> 81 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<a name="L82"></a><span id="L82" class="LineNr"> 82 </span><span class="Delimiter">}</span>
<a name="L83"></a><span id="L83" class="LineNr"> 83 </span>
<a name="L84"></a><span id="L84" class="LineNr"> 84 </span><span class="Delimiter">:(scenario dilated_reagent_with_type_tree)</span>
<a name="L85"></a><span id="L85" class="LineNr"> 85 </span><span class="Special">% Hide_errors = true; // 'map' isn't defined yet</span>
<a name="L86"></a><span id="L86" class="LineNr"> 86 </span><span class="muRecipe">def</span> main [
<a name="L87"></a><span id="L87" class="LineNr"> 87 </span> <span class="Delimiter">{</span><span class="Constant">1</span>: <span class="Delimiter">(</span>foo <span class="Delimiter">(</span>address array character<span class="Delimiter">)</span> <span class="Delimiter">(</span>bar number<span class="Delimiter">))}</span><span class="Special"> <- </span>copy <span class="Constant">34</span>
<a name="L88"></a><span id="L88" class="LineNr"> 88 </span>]
<a name="L89"></a><span id="L89" class="LineNr"> 89 </span><span class="Comment"># just to avoid errors</span>
<a name="L90"></a><span id="L90" class="LineNr"> 90 </span><span class="muData">container</span> foo [
<a name="L91"></a><span id="L91" class="LineNr"> 91 </span>]
<a name="L92"></a><span id="L92" class="LineNr"> 92 </span><span class="muData">container</span> bar [
<a name="L93"></a><span id="L93" class="LineNr"> 93 </span>]
<a name="L94"></a><span id="L94" class="LineNr"> 94 </span><span class="traceContains">+parse: product: {1: ("foo" ("address" "array" "character") ("bar" "number"))}</span>
<a name="L95"></a><span id="L95" class="LineNr"> 95 </span>
<a name="L96"></a><span id="L96" class="LineNr"> 96 </span><span class="Delimiter">:(scenario dilated_empty_tree)</span>
<a name="L97"></a><span id="L97" class="LineNr"> 97 </span><span class="muRecipe">def</span> main [
<a name="L98"></a><span id="L98" class="LineNr"> 98 </span> <span class="Delimiter">{</span><span class="Constant">1</span>: number<span class="Delimiter">,</span> foo: <span class="Delimiter">()}</span><span class="Special"> <- </span>copy <span class="Constant">34</span>
<a name="L99"></a><span id="L99" class="LineNr"> 99 </span>]
<a name="L100"></a><span id="L100" class="LineNr">100 </span><span class="traceContains">+parse: product: {1: "number", "foo": ()}</span>
<a name="L101"></a><span id="L101" class="LineNr">101 </span>
<a name="L102"></a><span id="L102" class="LineNr">102 </span><span class="Delimiter">:(scenario dilated_singleton_tree)</span>
<a name="L103"></a><span id="L103" class="LineNr">103 </span><span class="muRecipe">def</span> main [
<a name="L104"></a><span id="L104" class="LineNr">104 </span> <span class="Delimiter">{</span><span class="Constant">1</span>: number<span class="Delimiter">,</span> foo: <span class="Delimiter">(</span>bar<span class="Delimiter">)}</span><span class="Special"> <- </span>copy <span class="Constant">34</span>
<a name="L105"></a><span id="L105" class="LineNr">105 </span>]
<a name="L106"></a><span id="L106" class="LineNr">106 </span><span class="traceContains">+parse: product: {1: "number", "foo": ("bar")}</span>
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