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Diffstat (limited to 'html/014literal_string.cc.html')
| -rw-r--r-- | html/014literal_string.cc.html | 482 |
1 files changed, 253 insertions, 229 deletions
diff --git a/html/014literal_string.cc.html b/html/014literal_string.cc.html index 89329b1c..1377f487 100644 --- a/html/014literal_string.cc.html +++ b/html/014literal_string.cc.html @@ -6,7 +6,7 @@ <meta name="Generator" content="Vim/7.4"> <meta name="plugin-version" content="vim7.4_v2"> <meta name="syntax" content="cpp"> -<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy="> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> <meta name="colorscheme" content="minimal"> <style type="text/css"> <!-- @@ -14,11 +14,12 @@ pre { white-space: pre-wrap; font-family: monospace; color: #eeeeee; background- body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color: #080808; } * { font-size: 12pt; font-size: 1em; } .Constant { color: #00a0a0; } -.cSpecial { color: #008000; } +.Special { color: #c00000; } .muRecipe { color: #ff8700; } +.cSpecial { color: #008000; } .Comment { color: #9090ff; } .Delimiter { color: #800080; } -.Special { color: #c00000; } +.LineNr { color: #444444; } .traceContains { color: #008000; } .Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; } .Identifier { color: #c0a020; } @@ -28,236 +29,259 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color <script type='text/javascript'> <!-- +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + --> </script> </head> -<body> +<body onload='JumpToLine();'> <pre id='vimCodeElement'> -<span class="Comment">//: For convenience, some instructions will take literal arrays of characters</span> -<span class="Comment">//: (text or strings).</span> -<span class="Comment">//:</span> -<span class="Comment">//: Instead of quotes, we'll use [] to delimit strings. That'll reduce the</span> -<span class="Comment">//: need for escaping since we can support nested brackets. And we can also</span> -<span class="Comment">//: imagine that 'recipe' might one day itself be defined in Mu, doing its own</span> -<span class="Comment">//: parsing.</span> - -<span class="Delimiter">:(scenarios load)</span> -<span class="Delimiter">:(scenario string_literal)</span> -<span class="muRecipe">def</span> main [ - <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc def] -] -<span class="traceContains">+parse: ingredient: {"abc def": "literal-string"}</span> - -<span class="Delimiter">:(scenario string_literal_with_colons)</span> -<span class="muRecipe">def</span> main [ - <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc:def/ghi] -] -<span class="traceContains">+parse: ingredient: {"abc:def/ghi": "literal-string"}</span> - -<span class="Delimiter">:(before "End Mu Types Initialization")</span> -put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"literal-string"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span> - -<span class="Delimiter">:(before "End next_word Special-cases")</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> - string result = slurp_quoted<span class="Delimiter">(</span>in<span class="Delimiter">);</span> - skip_whitespace_and_comments_but_not_newline<span class="Delimiter">(</span>in<span class="Delimiter">);</span> - <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span class="Delimiter">}</span> - -<span class="Delimiter">:(code)</span> -string slurp_quoted<span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> - ostringstream out<span class="Delimiter">;</span> - assert<span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">));</span> assert<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="Constant">'['</span><span class="Delimiter">);</span> out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">());</span> <span class="Comment">// slurp the '['</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>is_code_string<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">))</span> - slurp_quoted_comment_aware<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span> - <span class="Normal">else</span> - slurp_quoted_comment_oblivious<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span> - <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span class="Delimiter">}</span> - -<span class="Comment">// A string is a code string (ignores comments when scanning for matching</span> -<span class="Comment">// brackets) if it contains a newline at the start before any non-whitespace.</span> -<span class="Normal">bool</span> is_code_string<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> - <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>!isspace<span class="Delimiter">(</span>c<span class="Delimiter">))</span> <span class="Delimiter">{</span> - in<span class="Delimiter">.</span>putback<span class="Delimiter">(</span>c<span class="Delimiter">);</span> - <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> - out << c<span class="Delimiter">;</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> - <span class="Delimiter">}</span> - <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> -<span class="Delimiter">}</span> - -<span class="Comment">// Read a regular string. Regular strings can only contain other regular</span> -<span class="Comment">// strings.</span> -<span class="Normal">void</span> slurp_quoted_comment_oblivious<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">int</span> brace_depth = <span class="Constant">1</span><span class="Delimiter">;</span> - <span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> - <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - slurp_one_past_backslashes<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span> - <span class="Identifier">continue</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> - out << c<span class="Delimiter">;</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> ++brace_depth<span class="Delimiter">;</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> --brace_depth<span class="Delimiter">;</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>brace_depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">)</span> && brace_depth > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - raise << <span class="Constant">"unbalanced '['</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> - out<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> - <span class="Delimiter">}</span> -<span class="Delimiter">}</span> - -<span class="Comment">// Read a code string. Code strings can contain either code or regular strings.</span> -<span class="Normal">void</span> slurp_quoted_comment_aware<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">char</span> c<span class="Delimiter">;</span> - <span class="Normal">while</span> <span class="Delimiter">(</span>in >> c<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - slurp_one_past_backslashes<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span> - <span class="Identifier">continue</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - out << c<span class="Delimiter">;</span> - <span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">)</span> && in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">());</span> - <span class="Identifier">continue</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - in<span class="Delimiter">.</span>putback<span class="Delimiter">(</span>c<span class="Delimiter">);</span> - <span class="Comment">// recurse</span> - out << slurp_quoted<span class="Delimiter">(</span>in<span class="Delimiter">);</span> - <span class="Identifier">continue</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> - out << c<span class="Delimiter">;</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> - raise << <span class="Constant">"unbalanced '['</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> - out<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> -<span class="Delimiter">}</span> - -<span class="Delimiter">:(after "Parsing reagent(string s)")</span> -<span class="Normal">if</span> <span class="Delimiter">(</span>starts_with<span class="Delimiter">(</span>s<span class="Delimiter">,</span> <span class="Constant">"["</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>*s<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">']'</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// unbalanced bracket; handled elsewhere</span> - name = s<span class="Delimiter">;</span> - <span class="Comment">// delete [] delimiters</span> - name<span class="Delimiter">.</span>erase<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> - strip_last<span class="Delimiter">(</span>name<span class="Delimiter">);</span> - type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">"literal-string"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span> - <span class="Identifier">return</span><span class="Delimiter">;</span> -<span class="Delimiter">}</span> - -<span class="Comment">//: Unlike other reagents, escape newlines in literal strings to make them</span> -<span class="Comment">//: more friendly to trace().</span> - -<span class="Delimiter">:(after "string to_string(const reagent& r)")</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>is_literal_text<span class="Delimiter">(</span>r<span class="Delimiter">))</span> - <span class="Identifier">return</span> emit_literal_string<span class="Delimiter">(</span>r<span class="Delimiter">.</span>name<span class="Delimiter">);</span> - -<span class="Delimiter">:(code)</span> -<span class="Normal">bool</span> is_literal_text<span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Identifier">return</span> x<span class="Delimiter">.</span>type && x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"literal-string"</span><span class="Delimiter">;</span> -<span class="Delimiter">}</span> - -string emit_literal_string<span class="Delimiter">(</span>string name<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">size_t</span> pos = <span class="Constant">0</span><span class="Delimiter">;</span> - <span class="Normal">while</span> <span class="Delimiter">(</span>pos != string::npos<span class="Delimiter">)</span> - pos = replace<span class="Delimiter">(</span>name<span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\\</span><span class="Constant">n"</span><span class="Delimiter">,</span> pos<span class="Delimiter">);</span> - <span class="Identifier">return</span> <span class="Constant">"{</span><span class="cSpecial">\"</span><span class="Constant">"</span>+name+<span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">: </span><span class="cSpecial">\"</span><span class="Constant">literal-string</span><span class="cSpecial">\"</span><span class="Constant">}"</span><span class="Delimiter">;</span> -<span class="Delimiter">}</span> - -<span class="Normal">size_t</span> replace<span class="Delimiter">(</span>string& str<span class="Delimiter">,</span> <span class="Normal">const</span> string& from<span class="Delimiter">,</span> <span class="Normal">const</span> string& to<span class="Delimiter">,</span> <span class="Normal">size_t</span> n<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">size_t</span> result = str<span class="Delimiter">.</span>find<span class="Delimiter">(</span>from<span class="Delimiter">,</span> n<span class="Delimiter">);</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>result != string::npos<span class="Delimiter">)</span> - str<span class="Delimiter">.</span>replace<span class="Delimiter">(</span>result<span class="Delimiter">,</span> from<span class="Delimiter">.</span>length<span class="Delimiter">(),</span> to<span class="Delimiter">);</span> - <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span class="Delimiter">}</span> - -<span class="Normal">void</span> strip_last<span class="Delimiter">(</span>string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>!s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> s<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>s<span class="Delimiter">)</span>-<span class="Constant">1</span><span class="Delimiter">);</span> -<span class="Delimiter">}</span> - -<span class="Normal">void</span> slurp_one_past_backslashes<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Comment">// When you encounter a backslash, strip it out and pass through any</span> - <span class="Comment">// following run of backslashes. If we 'escaped' a single following</span> - <span class="Comment">// character, then the character '\' would be:</span> - <span class="Comment">// '\\' escaped once</span> - <span class="Comment">// '\\\\' escaped twice</span> - <span class="Comment">// '\\\\\\\\' escaped thrice (8 backslashes)</span> - <span class="Comment">// ..and so on. With our approach it'll be:</span> - <span class="Comment">// '\\' escaped once</span> - <span class="Comment">// '\\\' escaped twice</span> - <span class="Comment">// '\\\\' escaped thrice</span> - <span class="Comment">// This only works as long as backslashes aren't also overloaded to create</span> - <span class="Comment">// special characters. So Mu doesn't follow C's approach of overloading</span> - <span class="Comment">// backslashes both to escape quote characters and also as a notation for</span> - <span class="Comment">// unprintable characters like '\n'.</span> - <span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> - <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> - out << c<span class="Delimiter">;</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c != <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> -<span class="Delimiter">}</span> - -<span class="Delimiter">:(scenario string_literal_nested)</span> -<span class="muRecipe">def</span> main [ - <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc [def]] -] -<span class="traceContains">+parse: ingredient: {"abc [def]": "literal-string"}</span> - -<span class="Delimiter">:(scenario string_literal_escaped)</span> -<span class="muRecipe">def</span> main [ - <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc \[def] -] -<span class="traceContains">+parse: ingredient: {"abc [def": "literal-string"}</span> - -<span class="Delimiter">:(scenario string_literal_escaped_twice)</span> -<span class="muRecipe">def</span> main [ - <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [ -abc \\[def] -] -<span class="traceContains">+parse: ingredient: {"\nabc \[def": "literal-string"}</span> - -<span class="Delimiter">:(scenario string_literal_and_comment)</span> -<span class="muRecipe">def</span> main [ - <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc] <span class="Comment"># comment</span> -] -<span class="traceContains">+parse: --- defining main</span> -<span class="traceContains">+parse: instruction: copy</span> -<span class="traceContains">+parse: number of ingredients: 1</span> -<span class="traceContains">+parse: ingredient: {"abc": "literal-string"}</span> -<span class="traceContains">+parse: product: {1: ("address" "array" "character")}</span> - -<span class="Delimiter">:(scenario string_literal_escapes_newlines_in_trace)</span> -<span class="muRecipe">def</span> main [ - copy [abc -<span class="muRecipe">def</span>] -] -<span class="traceContains">+parse: ingredient: {"abc\ndef": "literal-string"}</span> - -<span class="Delimiter">:(scenario string_literal_can_skip_past_comments)</span> -<span class="muRecipe">def</span> main [ - copy [ - <span class="Comment"># ']' inside comment</span> - bar - ] -] -<span class="traceContains">+parse: ingredient: {"\n # ']' inside comment\n bar\n ": "literal-string"}</span> - -<span class="Delimiter">:(scenario string_literal_empty)</span> -<span class="muRecipe">def</span> main [ - copy [] -] -<span class="traceContains">+parse: ingredient: {"": "literal-string"}</span> - -<span class="Delimiter">:(scenario multiple_unfinished_recipes)</span> -<span class="Special">% Hide_errors = true;</span> -<span class="muRecipe">def</span> f1 [ -<span class="muRecipe">def</span> f2 [ -<span class="traceContains">+error: unbalanced '['</span> +<a name="L1"></a><span id="L1" class="LineNr"> 1 </span><span class="Comment">//: For convenience, some instructions will take literal arrays of characters</span> +<a name="L2"></a><span id="L2" class="LineNr"> 2 </span><span class="Comment">//: (text or strings).</span> +<a name="L3"></a><span id="L3" class="LineNr"> 3 </span><span class="Comment">//:</span> +<a name="L4"></a><span id="L4" class="LineNr"> 4 </span><span class="Comment">//: Instead of quotes, we'll use [] to delimit strings. That'll reduce the</span> +<a name="L5"></a><span id="L5" class="LineNr"> 5 </span><span class="Comment">//: need for escaping since we can support nested brackets. And we can also</span> +<a name="L6"></a><span id="L6" class="LineNr"> 6 </span><span class="Comment">//: imagine that 'recipe' might one day itself be defined in Mu, doing its own</span> +<a name="L7"></a><span id="L7" class="LineNr"> 7 </span><span class="Comment">//: parsing.</span> +<a name="L8"></a><span id="L8" class="LineNr"> 8 </span> +<a name="L9"></a><span id="L9" class="LineNr"> 9 </span><span class="Delimiter">:(scenarios load)</span> +<a name="L10"></a><span id="L10" class="LineNr"> 10 </span><span class="Delimiter">:(scenario string_literal)</span> +<a name="L11"></a><span id="L11" class="LineNr"> 11 </span><span class="muRecipe">def</span> main [ +<a name="L12"></a><span id="L12" class="LineNr"> 12 </span> <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc def] +<a name="L13"></a><span id="L13" class="LineNr"> 13 </span>] +<a name="L14"></a><span id="L14" class="LineNr"> 14 </span><span class="traceContains">+parse: ingredient: {"abc def": "literal-string"}</span> +<a name="L15"></a><span id="L15" class="LineNr"> 15 </span> +<a name="L16"></a><span id="L16" class="LineNr"> 16 </span><span class="Delimiter">:(scenario string_literal_with_colons)</span> +<a name="L17"></a><span id="L17" class="LineNr"> 17 </span><span class="muRecipe">def</span> main [ +<a name="L18"></a><span id="L18" class="LineNr"> 18 </span> <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc:def/ghi] +<a name="L19"></a><span id="L19" class="LineNr"> 19 </span>] +<a name="L20"></a><span id="L20" class="LineNr"> 20 </span><span class="traceContains">+parse: ingredient: {"abc:def/ghi": "literal-string"}</span> +<a name="L21"></a><span id="L21" class="LineNr"> 21 </span> +<a name="L22"></a><span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(before "End Mu Types Initialization")</span> +<a name="L23"></a><span id="L23" class="LineNr"> 23 </span>put<span class="Delimiter">(</span>Type_ordinal<span class="Delimiter">,</span> <span class="Constant">"literal-string"</span><span class="Delimiter">,</span> <span class="Constant">0</span><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">:(before "End next_word Special-cases")</span> +<a name="L26"></a><span id="L26" class="LineNr"> 26 </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="L27"></a><span id="L27" class="LineNr"> 27 </span> string result = slurp_quoted<span class="Delimiter">(</span>in<span class="Delimiter">);</span> +<a name="L28"></a><span id="L28" class="LineNr"> 28 </span> skip_whitespace_and_comments_but_not_newline<span class="Delimiter">(</span>in<span class="Delimiter">);</span> +<a name="L29"></a><span id="L29" class="LineNr"> 29 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<a name="L30"></a><span id="L30" class="LineNr"> 30 </span><span class="Delimiter">}</span> +<a name="L31"></a><span id="L31" class="LineNr"> 31 </span> +<a name="L32"></a><span id="L32" class="LineNr"> 32 </span><span class="Delimiter">:(code)</span> +<a name="L33"></a><span id="L33" class="LineNr"> 33 </span>string slurp_quoted<span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L34"></a><span id="L34" class="LineNr"> 34 </span> ostringstream out<span class="Delimiter">;</span> +<a name="L35"></a><span id="L35" class="LineNr"> 35 </span> assert<span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">));</span> assert<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> == <span class="Constant">'['</span><span class="Delimiter">);</span> out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">());</span> <span class="Comment">// slurp the '['</span> +<a name="L36"></a><span id="L36" class="LineNr"> 36 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_code_string<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">))</span> +<a name="L37"></a><span id="L37" class="LineNr"> 37 </span> slurp_quoted_comment_aware<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span> +<a name="L38"></a><span id="L38" class="LineNr"> 38 </span> <span class="Normal">else</span> +<a name="L39"></a><span id="L39" class="LineNr"> 39 </span> slurp_quoted_comment_oblivious<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span> +<a name="L40"></a><span id="L40" class="LineNr"> 40 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<a name="L41"></a><span id="L41" class="LineNr"> 41 </span><span class="Delimiter">}</span> +<a name="L42"></a><span id="L42" class="LineNr"> 42 </span> +<a name="L43"></a><span id="L43" class="LineNr"> 43 </span><span class="Comment">// A string is a code string (ignores comments when scanning for matching</span> +<a name="L44"></a><span id="L44" class="LineNr"> 44 </span><span class="Comment">// brackets) if it contains a newline at the start before any non-whitespace.</span> +<a name="L45"></a><span id="L45" class="LineNr"> 45 </span><span class="Normal">bool</span> is_code_string<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L46"></a><span id="L46" class="LineNr"> 46 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<a name="L47"></a><span id="L47" class="LineNr"> 47 </span> <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> +<a name="L48"></a><span id="L48" class="LineNr"> 48 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!isspace<span class="Delimiter">(</span>c<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<a name="L49"></a><span id="L49" class="LineNr"> 49 </span> in<span class="Delimiter">.</span>putback<span class="Delimiter">(</span>c<span class="Delimiter">);</span> +<a name="L50"></a><span id="L50" class="LineNr"> 50 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> +<a name="L51"></a><span id="L51" class="LineNr"> 51 </span> <span class="Delimiter">}</span> +<a name="L52"></a><span id="L52" class="LineNr"> 52 </span> out << c<span class="Delimiter">;</span> +<a name="L53"></a><span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L54"></a><span id="L54" class="LineNr"> 54 </span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> +<a name="L55"></a><span id="L55" class="LineNr"> 55 </span> <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> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> +<a name="L58"></a><span id="L58" class="LineNr"> 58 </span><span class="Delimiter">}</span> +<a name="L59"></a><span id="L59" class="LineNr"> 59 </span> +<a name="L60"></a><span id="L60" class="LineNr"> 60 </span><span class="Comment">// Read a regular string. Regular strings can only contain other regular</span> +<a name="L61"></a><span id="L61" class="LineNr"> 61 </span><span class="Comment">// strings.</span> +<a name="L62"></a><span id="L62" class="LineNr"> 62 </span><span class="Normal">void</span> slurp_quoted_comment_oblivious<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L63"></a><span id="L63" class="LineNr"> 63 </span> <span class="Normal">int</span> brace_depth = <span class="Constant">1</span><span class="Delimiter">;</span> +<a name="L64"></a><span id="L64" class="LineNr"> 64 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<a name="L65"></a><span id="L65" class="LineNr"> 65 </span> <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> +<a name="L66"></a><span id="L66" class="LineNr"> 66 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L67"></a><span id="L67" class="LineNr"> 67 </span> slurp_one_past_backslashes<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span> +<a name="L68"></a><span id="L68" class="LineNr"> 68 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<a name="L69"></a><span id="L69" class="LineNr"> 69 </span> <span class="Delimiter">}</span> +<a name="L70"></a><span id="L70" class="LineNr"> 70 </span> out << c<span class="Delimiter">;</span> +<a name="L71"></a><span id="L71" class="LineNr"> 71 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> ++brace_depth<span class="Delimiter">;</span> +<a name="L72"></a><span id="L72" class="LineNr"> 72 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> --brace_depth<span class="Delimiter">;</span> +<a name="L73"></a><span id="L73" class="LineNr"> 73 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>brace_depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</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="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">)</span> && brace_depth > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L76"></a><span id="L76" class="LineNr"> 76 </span> raise << <span class="Constant">"unbalanced '['</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<a name="L77"></a><span id="L77" class="LineNr"> 77 </span> out<span class="Delimiter">.</span>clear<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><span class="Delimiter">}</span> +<a name="L80"></a><span id="L80" class="LineNr"> 80 </span> +<a name="L81"></a><span id="L81" class="LineNr"> 81 </span><span class="Comment">// Read a code string. Code strings can contain either code or regular strings.</span> +<a name="L82"></a><span id="L82" class="LineNr"> 82 </span><span class="Normal">void</span> slurp_quoted_comment_aware<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L83"></a><span id="L83" class="LineNr"> 83 </span> <span class="Normal">char</span> c<span class="Delimiter">;</span> +<a name="L84"></a><span id="L84" class="LineNr"> 84 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>in >> c<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L85"></a><span id="L85" class="LineNr"> 85 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L86"></a><span id="L86" class="LineNr"> 86 </span> slurp_one_past_backslashes<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">);</span> +<a name="L87"></a><span id="L87" class="LineNr"> 87 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<a name="L88"></a><span id="L88" class="LineNr"> 88 </span> <span class="Delimiter">}</span> +<a name="L89"></a><span id="L89" class="LineNr"> 89 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L90"></a><span id="L90" class="LineNr"> 90 </span> out << c<span class="Delimiter">;</span> +<a name="L91"></a><span id="L91" class="LineNr"> 91 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">)</span> && in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">());</span> +<a name="L92"></a><span id="L92" class="LineNr"> 92 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<a name="L93"></a><span id="L93" class="LineNr"> 93 </span> <span class="Delimiter">}</span> +<a name="L94"></a><span id="L94" class="LineNr"> 94 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L95"></a><span id="L95" class="LineNr"> 95 </span> in<span class="Delimiter">.</span>putback<span class="Delimiter">(</span>c<span class="Delimiter">);</span> +<a name="L96"></a><span id="L96" class="LineNr"> 96 </span> <span class="Comment">// recurse</span> +<a name="L97"></a><span id="L97" class="LineNr"> 97 </span> out << slurp_quoted<span class="Delimiter">(</span>in<span class="Delimiter">);</span> +<a name="L98"></a><span id="L98" class="LineNr"> 98 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<a name="L99"></a><span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">}</span> +<a name="L100"></a><span id="L100" class="LineNr">100 </span> out << c<span class="Delimiter">;</span> +<a name="L101"></a><span id="L101" class="LineNr">101 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<a name="L102"></a><span id="L102" class="LineNr">102 </span> <span class="Delimiter">}</span> +<a name="L103"></a><span id="L103" class="LineNr">103 </span> raise << <span class="Constant">"unbalanced '['</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<a name="L104"></a><span id="L104" class="LineNr">104 </span> out<span class="Delimiter">.</span>clear<span class="Delimiter">();</span> +<a name="L105"></a><span id="L105" class="LineNr">105 </span><span class="Delimiter">}</span> +<a name="L106"></a><span id="L106" class="LineNr">106 </span> +<a name="L107"></a><span id="L107" class="LineNr">107 </span><span class="Delimiter">:(after "Parsing reagent(string s)")</span> +<a name="L108"></a><span id="L108" class="LineNr">108 </span><span class="Normal">if</span> <span class="Delimiter">(</span>starts_with<span class="Delimiter">(</span>s<span class="Delimiter">,</span> <span class="Constant">"["</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<a name="L109"></a><span id="L109" class="LineNr">109 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*s<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">']'</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// unbalanced bracket; handled elsewhere</span> +<a name="L110"></a><span id="L110" class="LineNr">110 </span> name = s<span class="Delimiter">;</span> +<a name="L111"></a><span id="L111" class="LineNr">111 </span> <span class="Comment">// delete [] delimiters</span> +<a name="L112"></a><span id="L112" class="LineNr">112 </span> name<span class="Delimiter">.</span>erase<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> +<a name="L113"></a><span id="L113" class="LineNr">113 </span> strip_last<span class="Delimiter">(</span>name<span class="Delimiter">);</span> +<a name="L114"></a><span id="L114" class="LineNr">114 </span> type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">"literal-string"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span> +<a name="L115"></a><span id="L115" class="LineNr">115 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<a name="L116"></a><span id="L116" class="LineNr">116 </span><span class="Delimiter">}</span> +<a name="L117"></a><span id="L117" class="LineNr">117 </span> +<a name="L118"></a><span id="L118" class="LineNr">118 </span><span class="Comment">//: Unlike other reagents, escape newlines in literal strings to make them</span> +<a name="L119"></a><span id="L119" class="LineNr">119 </span><span class="Comment">//: more friendly to trace().</span> +<a name="L120"></a><span id="L120" class="LineNr">120 </span> +<a name="L121"></a><span id="L121" class="LineNr">121 </span><span class="Delimiter">:(after "string to_string(const reagent& r)")</span> +<a name="L122"></a><span id="L122" class="LineNr">122 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_literal_text<span class="Delimiter">(</span>r<span class="Delimiter">))</span> +<a name="L123"></a><span id="L123" class="LineNr">123 </span> <span class="Identifier">return</span> emit_literal_string<span class="Delimiter">(</span>r<span class="Delimiter">.</span>name<span class="Delimiter">);</span> +<a name="L124"></a><span id="L124" class="LineNr">124 </span> +<a name="L125"></a><span id="L125" class="LineNr">125 </span><span class="Delimiter">:(code)</span> +<a name="L126"></a><span id="L126" class="LineNr">126 </span><span class="Normal">bool</span> is_literal_text<span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L127"></a><span id="L127" class="LineNr">127 </span> <span class="Identifier">return</span> x<span class="Delimiter">.</span>type && x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"literal-string"</span><span class="Delimiter">;</span> +<a name="L128"></a><span id="L128" class="LineNr">128 </span><span class="Delimiter">}</span> +<a name="L129"></a><span id="L129" class="LineNr">129 </span> +<a name="L130"></a><span id="L130" class="LineNr">130 </span>string emit_literal_string<span class="Delimiter">(</span>string name<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L131"></a><span id="L131" class="LineNr">131 </span> <span class="Normal">size_t</span> pos = <span class="Constant">0</span><span class="Delimiter">;</span> +<a name="L132"></a><span id="L132" class="LineNr">132 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>pos != string::npos<span class="Delimiter">)</span> +<a name="L133"></a><span id="L133" class="LineNr">133 </span> pos = replace<span class="Delimiter">(</span>name<span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\\</span><span class="Constant">n"</span><span class="Delimiter">,</span> pos<span class="Delimiter">);</span> +<a name="L134"></a><span id="L134" class="LineNr">134 </span> <span class="Identifier">return</span> <span class="Constant">"{</span><span class="cSpecial">\"</span><span class="Constant">"</span>+name+<span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">: </span><span class="cSpecial">\"</span><span class="Constant">literal-string</span><span class="cSpecial">\"</span><span class="Constant">}"</span><span class="Delimiter">;</span> +<a name="L135"></a><span id="L135" class="LineNr">135 </span><span class="Delimiter">}</span> +<a name="L136"></a><span id="L136" class="LineNr">136 </span> +<a name="L137"></a><span id="L137" class="LineNr">137 </span><span class="Normal">size_t</span> replace<span class="Delimiter">(</span>string& str<span class="Delimiter">,</span> <span class="Normal">const</span> string& from<span class="Delimiter">,</span> <span class="Normal">const</span> string& to<span class="Delimiter">,</span> <span class="Normal">size_t</span> n<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L138"></a><span id="L138" class="LineNr">138 </span> <span class="Normal">size_t</span> result = str<span class="Delimiter">.</span>find<span class="Delimiter">(</span>from<span class="Delimiter">,</span> n<span class="Delimiter">);</span> +<a name="L139"></a><span id="L139" class="LineNr">139 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result != string::npos<span class="Delimiter">)</span> +<a name="L140"></a><span id="L140" class="LineNr">140 </span> str<span class="Delimiter">.</span>replace<span class="Delimiter">(</span>result<span class="Delimiter">,</span> from<span class="Delimiter">.</span>length<span class="Delimiter">(),</span> to<span class="Delimiter">);</span> +<a name="L141"></a><span id="L141" class="LineNr">141 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<a name="L142"></a><span id="L142" class="LineNr">142 </span><span class="Delimiter">}</span> +<a name="L143"></a><span id="L143" class="LineNr">143 </span> +<a name="L144"></a><span id="L144" class="LineNr">144 </span><span class="Normal">void</span> strip_last<span class="Delimiter">(</span>string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L145"></a><span id="L145" class="LineNr">145 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> s<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>s<span class="Delimiter">)</span>-<span class="Constant">1</span><span class="Delimiter">);</span> +<a name="L146"></a><span id="L146" class="LineNr">146 </span><span class="Delimiter">}</span> +<a name="L147"></a><span id="L147" class="LineNr">147 </span> +<a name="L148"></a><span id="L148" class="LineNr">148 </span><span class="Normal">void</span> slurp_one_past_backslashes<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L149"></a><span id="L149" class="LineNr">149 </span> <span class="Comment">// When you encounter a backslash, strip it out and pass through any</span> +<a name="L150"></a><span id="L150" class="LineNr">150 </span> <span class="Comment">// following run of backslashes. If we 'escaped' a single following</span> +<a name="L151"></a><span id="L151" class="LineNr">151 </span> <span class="Comment">// character, then the character '\' would be:</span> +<a name="L152"></a><span id="L152" class="LineNr">152 </span> <span class="Comment">// '\\' escaped once</span> +<a name="L153"></a><span id="L153" class="LineNr">153 </span> <span class="Comment">// '\\\\' escaped twice</span> +<a name="L154"></a><span id="L154" class="LineNr">154 </span> <span class="Comment">// '\\\\\\\\' escaped thrice (8 backslashes)</span> +<a name="L155"></a><span id="L155" class="LineNr">155 </span> <span class="Comment">// ..and so on. With our approach it'll be:</span> +<a name="L156"></a><span id="L156" class="LineNr">156 </span> <span class="Comment">// '\\' escaped once</span> +<a name="L157"></a><span id="L157" class="LineNr">157 </span> <span class="Comment">// '\\\' escaped twice</span> +<a name="L158"></a><span id="L158" class="LineNr">158 </span> <span class="Comment">// '\\\\' escaped thrice</span> +<a name="L159"></a><span id="L159" class="LineNr">159 </span> <span class="Comment">// This only works as long as backslashes aren't also overloaded to create</span> +<a name="L160"></a><span id="L160" class="LineNr">160 </span> <span class="Comment">// special characters. So Mu doesn't follow C's approach of overloading</span> +<a name="L161"></a><span id="L161" class="LineNr">161 </span> <span class="Comment">// backslashes both to escape quote characters and also as a notation for</span> +<a name="L162"></a><span id="L162" class="LineNr">162 </span> <span class="Comment">// unprintable characters like '\n'.</span> +<a name="L163"></a><span id="L163" class="LineNr">163 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<a name="L164"></a><span id="L164" class="LineNr">164 </span> <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> +<a name="L165"></a><span id="L165" class="LineNr">165 </span> out << c<span class="Delimiter">;</span> +<a name="L166"></a><span id="L166" class="LineNr">166 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c != <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<a name="L167"></a><span id="L167" class="LineNr">167 </span> <span class="Delimiter">}</span> +<a name="L168"></a><span id="L168" class="LineNr">168 </span><span class="Delimiter">}</span> +<a name="L169"></a><span id="L169" class="LineNr">169 </span> +<a name="L170"></a><span id="L170" class="LineNr">170 </span><span class="Delimiter">:(scenario string_literal_nested)</span> +<a name="L171"></a><span id="L171" class="LineNr">171 </span><span class="muRecipe">def</span> main [ +<a name="L172"></a><span id="L172" class="LineNr">172 </span> <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc [def]] +<a name="L173"></a><span id="L173" class="LineNr">173 </span>] +<a name="L174"></a><span id="L174" class="LineNr">174 </span><span class="traceContains">+parse: ingredient: {"abc [def]": "literal-string"}</span> +<a name="L175"></a><span id="L175" class="LineNr">175 </span> +<a name="L176"></a><span id="L176" class="LineNr">176 </span><span class="Delimiter">:(scenario string_literal_escaped)</span> +<a name="L177"></a><span id="L177" class="LineNr">177 </span><span class="muRecipe">def</span> main [ +<a name="L178"></a><span id="L178" class="LineNr">178 </span> <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc \[def] +<a name="L179"></a><span id="L179" class="LineNr">179 </span>] +<a name="L180"></a><span id="L180" class="LineNr">180 </span><span class="traceContains">+parse: ingredient: {"abc [def": "literal-string"}</span> +<a name="L181"></a><span id="L181" class="LineNr">181 </span> +<a name="L182"></a><span id="L182" class="LineNr">182 </span><span class="Delimiter">:(scenario string_literal_escaped_twice)</span> +<a name="L183"></a><span id="L183" class="LineNr">183 </span><span class="muRecipe">def</span> main [ +<a name="L184"></a><span id="L184" class="LineNr">184 </span> <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [ +<a name="L185"></a><span id="L185" class="LineNr">185 </span>abc \\[def] +<a name="L186"></a><span id="L186" class="LineNr">186 </span>] +<a name="L187"></a><span id="L187" class="LineNr">187 </span><span class="traceContains">+parse: ingredient: {"\nabc \[def": "literal-string"}</span> +<a name="L188"></a><span id="L188" class="LineNr">188 </span> +<a name="L189"></a><span id="L189" class="LineNr">189 </span><span class="Delimiter">:(scenario string_literal_and_comment)</span> +<a name="L190"></a><span id="L190" class="LineNr">190 </span><span class="muRecipe">def</span> main [ +<a name="L191"></a><span id="L191" class="LineNr">191 </span> <span class="Constant">1</span>:address:array:character<span class="Special"> <- </span>copy [abc] <span class="Comment"># comment</span> +<a name="L192"></a><span id="L192" class="LineNr">192 </span>] +<a name="L193"></a><span id="L193" class="LineNr">193 </span><span class="traceContains">+parse: --- defining main</span> +<a name="L194"></a><span id="L194" class="LineNr">194 </span><span class="traceContains">+parse: instruction: copy</span> +<a name="L195"></a><span id="L195" class="LineNr">195 </span><span class="traceContains">+parse: number of ingredients: 1</span> +<a name="L196"></a><span id="L196" class="LineNr">196 </span><span class="traceContains">+parse: ingredient: {"abc": "literal-string"}</span> +<a name="L197"></a><span id="L197" class="LineNr">197 </span><span class="traceContains">+parse: product: {1: ("address" "array" "character")}</span> +<a name="L198"></a><span id="L198" class="LineNr">198 </span> +<a name="L199"></a><span id="L199" class="LineNr">199 </span><span class="Delimiter">:(scenario string_literal_escapes_newlines_in_trace)</span> +<a name="L200"></a><span id="L200" class="LineNr">200 </span><span class="muRecipe">def</span> main [ +<a name="L201"></a><span id="L201" class="LineNr">201 </span> copy [abc +<a name="L202"></a><span id="L202" class="LineNr">202 </span><span class="muRecipe">def</span>] +<a name="L203"></a><span id="L203" class="LineNr">203 </span>] +<a name="L204"></a><span id="L204" class="LineNr">204 </span><span class="traceContains">+parse: ingredient: {"abc\ndef": "literal-string"}</span> +<a name="L205"></a><span id="L205" class="LineNr">205 </span> +<a name="L206"></a><span id="L206" class="LineNr">206 </span><span class="Delimiter">:(scenario string_literal_can_skip_past_comments)</span> +<a name="L207"></a><span id="L207" class="LineNr">207 </span><span class="muRecipe">def</span> main [ +<a name="L208"></a><span id="L208" class="LineNr">208 </span> copy [ +<a name="L209"></a><span id="L209" class="LineNr">209 </span> <span class="Comment"># ']' inside comment</span> +<a name="L210"></a><span id="L210" class="LineNr">210 </span> bar +<a name="L211"></a><span id="L211" class="LineNr">211 </span> ] +<a name="L212"></a><span id="L212" class="LineNr">212 </span>] +<a name="L213"></a><span id="L213" class="LineNr">213 </span><span class="traceContains">+parse: ingredient: {"\n # ']' inside comment\n bar\n ": "literal-string"}</span> +<a name="L214"></a><span id="L214" class="LineNr">214 </span> +<a name="L215"></a><span id="L215" class="LineNr">215 </span><span class="Delimiter">:(scenario string_literal_empty)</span> +<a name="L216"></a><span id="L216" class="LineNr">216 </span><span class="muRecipe">def</span> main [ +<a name="L217"></a><span id="L217" class="LineNr">217 </span> copy [] +<a name="L218"></a><span id="L218" class="LineNr">218 </span>] +<a name="L219"></a><span id="L219" class="LineNr">219 </span><span class="traceContains">+parse: ingredient: {"": "literal-string"}</span> +<a name="L220"></a><span id="L220" class="LineNr">220 </span> +<a name="L221"></a><span id="L221" class="LineNr">221 </span><span class="Delimiter">:(scenario multiple_unfinished_recipes)</span> +<a name="L222"></a><span id="L222" class="LineNr">222 </span><span class="Special">% Hide_errors = true;</span> +<a name="L223"></a><span id="L223" class="LineNr">223 </span><span class="muRecipe">def</span> f1 [ +<a name="L224"></a><span id="L224" class="LineNr">224 </span><span class="muRecipe">def</span> f2 [ +<a name="L225"></a><span id="L225" class="LineNr">225 </span><span class="traceContains">+error: unbalanced '['</span> </pre> </body> </html> |