diff options
Diffstat (limited to 'html/013literal_string.cc.html')
| -rw-r--r-- | html/013literal_string.cc.html | 98 |
1 files changed, 48 insertions, 50 deletions
diff --git a/html/013literal_string.cc.html b/html/013literal_string.cc.html index 03e3b5d3..b6c539cf 100644 --- a/html/013literal_string.cc.html +++ b/html/013literal_string.cc.html @@ -13,15 +13,14 @@ pre { white-space: pre-wrap; font-family: monospace; color: #eeeeee; background-color: #080808; } body { font-family: monospace; color: #eeeeee; background-color: #080808; } * { font-size: 1.05em; } +.traceContains { color: #008000; } .cSpecial { color: #008000; } .Constant { color: #00a0a0; } -.CommentedCode { color: #6c6c6c; } -.Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; } .Comment { color: #9090ff; } .Delimiter { color: #a04060; } .Special { color: #ff6060; } +.CommentedCode { color: #6c6c6c; } .Identifier { color: #804000; } -.traceContains { color: #008000; } --> </style> @@ -57,7 +56,7 @@ recipe main [ Type_ordinal[<span class="Constant">"literal-string"</span>] = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Delimiter">:(after "string next_word(istream& in)")</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> + if <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<span class="Delimiter">(</span>in<span class="Delimiter">);</span> skip_comment<span class="Delimiter">(</span>in<span class="Delimiter">);</span> @@ -68,26 +67,26 @@ Type_ordinal[<span class="Constant">"literal-string"</span>] = <span c <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>!in<span class="Delimiter">.</span>eof<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>code_string<span class="Delimiter">(</span>in<span class="Delimiter">,</span> out<span class="Delimiter">))</span> + assert<span class="Delimiter">(</span>!in<span class="Delimiter">.</span>eof<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 << static_cast<char><span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">());</span> <span class="Comment">// slurp the '['</span> + if <span class="Delimiter">(</span>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> + else 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 if it contains a newline before any non-whitespace</span> <span class="Comment">// todo: support comments before the newline. But that gets messy.</span> -<span class="Normal">bool</span> code_string<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostringstream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">while</span> <span class="Delimiter">(</span>!in<span class="Delimiter">.</span>eof<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> +bool code_string<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostringstream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> + while <span class="Delimiter">(</span>!in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> + char c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> + if <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="CommentedCode">//? cerr << "code_string: " << out.str() << '\n'; //? 1</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> + if <span class="Delimiter">(</span>c == <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="CommentedCode">//? cerr << "code_string: " << out.str() << '\n'; //? 1</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> <span class="Delimiter">}</span> @@ -97,70 +96,69 @@ string slurp_quoted<span class="Delimiter">(</span>istream& in<span class="D <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> ostringstream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +void slurp_quoted_comment_oblivious<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostringstream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="CommentedCode">//? cerr << "comment oblivious\n"; //? 1</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>!in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> - <span class="Normal">char</span> c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> + int brace_depth = <span class="Constant">1</span><span class="Delimiter">;</span> + while <span class="Delimiter">(</span>!in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> + char c = in<span class="Delimiter">.</span>get<span class="Delimiter">();</span> <span class="CommentedCode">//? cerr << '%' << (int)c << ' ' << brace_depth << ": " << out.str() << "%$\n"; //? 1</span> <span class="CommentedCode">//? cout << (int)c << ": " << brace_depth << '\n'; //? 2</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">());</span> + if <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + out << static_cast<char><span class="Delimiter">(</span>in<span class="Delimiter">.</span>get<span class="Delimiter">());</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Delimiter">}</span> out << c<span class="Delimiter">;</span> <span class="CommentedCode">//? cout << out.str() << "$\n"; //? 1</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> + if <span class="Delimiter">(</span>c == <span class="Constant">'['</span><span class="Delimiter">)</span> ++brace_depth<span class="Delimiter">;</span> + if <span class="Delimiter">(</span>c == <span class="Constant">']'</span><span class="Delimiter">)</span> --brace_depth<span class="Delimiter">;</span> + if <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>in<span class="Delimiter">.</span>eof<span class="Delimiter">()</span> && brace_depth > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + if <span class="Delimiter">(</span>in<span class="Delimiter">.</span>eof<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> ostringstream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +void slurp_quoted_comment_aware<span class="Delimiter">(</span>istream& in<span class="Delimiter">,</span> ostringstream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="CommentedCode">//? cerr << "comment aware\n"; //? 1</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> + char c<span class="Delimiter">;</span> + while <span class="Delimiter">(</span>in >> c<span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="CommentedCode">//? cerr << '^' << (int)c << ": " << out.str() << "$\n"; //? 1</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</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> + if <span class="Delimiter">(</span>c == <span class="cSpecial">'\\'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + out << static_cast<char><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> + if <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>!in<span class="Delimiter">.</span>eof<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> + while <span class="Delimiter">(</span>!in<span class="Delimiter">.</span>eof<span class="Delimiter">()</span> && in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> out << static_cast<char><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> + if <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> + if <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 "reagent::reagent(string s)")</span> -<span class="CommentedCode">//? cout << s.at(0) << '\n'; //? 1</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> - assert<span class="Delimiter">(</span>*s<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">']'</span><span class="Delimiter">);</span> - <span class="Comment">// delete [] delimiters</span> - s<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> - 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> - name = s<span class="Delimiter">;</span> - types<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> - properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> vector<string> ><span class="Delimiter">(</span>name<span class="Delimiter">,</span> vector<string><span class="Delimiter">()));</span> - properties<span class="Delimiter">.</span>back<span class="Delimiter">().</span>second<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Constant">"literal-string"</span><span class="Delimiter">);</span> - <span class="Identifier">return</span><span class="Delimiter">;</span> - <span class="Delimiter">}</span> +<span class="Delimiter">:(after "Parsing reagent(string s)")</span> +if <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + assert<span class="Delimiter">(</span>*s<span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">']'</span><span class="Delimiter">);</span> + <span class="Comment">// delete [] delimiters</span> + s<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> + 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> + name = s<span class="Delimiter">;</span> + types<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> + properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> vector<string> ><span class="Delimiter">(</span>name<span class="Delimiter">,</span> vector<string><span class="Delimiter">()));</span> + properties<span class="Delimiter">.</span>back<span class="Delimiter">().</span>second<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Constant">"literal-string"</span><span class="Delimiter">);</span> + <span class="Identifier">return</span><span class="Delimiter">;</span> +<span class="Delimiter">}</span> <span class="Comment">//: Two tweaks to printing literal strings compared to other reagents:</span> <span class="Comment">//: a) Don't print the string twice in the representation, just put '_' in</span> @@ -168,21 +166,21 @@ string slurp_quoted<span class="Delimiter">(</span>istream& in<span class="D <span class="Comment">//: b) Escape newlines in the string to make it more friendly to trace().</span> <span class="Delimiter">:(after "string reagent::to_string()")</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>!properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>second<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> && properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>second<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">"literal-string"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> + if <span class="Delimiter">(</span>!properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>second<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> && properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>second<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">"literal-string"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Identifier">return</span> emit_literal_string<span class="Delimiter">(</span>name<span class="Delimiter">);</span> <span class="Delimiter">}</span> <span class="Delimiter">:(code)</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> + size_t pos = <span class="Constant">0</span><span class="Delimiter">;</span> + while <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">"{name: </span><span class="cSpecial">\"</span><span class="Constant">"</span>+name+<span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">, properties: [_: </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> +size_t replace<span class="Delimiter">(</span>string& str<span class="Delimiter">,</span> const string& from<span class="Delimiter">,</span> const string& to<span class="Delimiter">,</span> size_t n<span class="Delimiter">)</span> <span class="Delimiter">{</span> + size_t result = str<span class="Delimiter">.</span>find<span class="Delimiter">(</span>from<span class="Delimiter">,</span> n<span class="Delimiter">);</span> + if <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> |