diff options
Diffstat (limited to 'html/015literal_noninteger.cc.html')
| -rw-r--r-- | html/015literal_noninteger.cc.html | 126 |
1 files changed, 75 insertions, 51 deletions
diff --git a/html/015literal_noninteger.cc.html b/html/015literal_noninteger.cc.html index 599afe2d..46223993 100644 --- a/html/015literal_noninteger.cc.html +++ b/html/015literal_noninteger.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; } @@ -28,58 +29,81 @@ 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">//: Support literal non-integers.</span> - -<span class="Delimiter">:(scenarios load)</span> -<span class="Delimiter">:(scenario noninteger_literal)</span> -<span class="muRecipe">def</span> main [ - <span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">3.14159</span> -] -<span class="traceContains">+parse: ingredient: {3.14159: "literal-fractional-number"}</span> - -<span class="Delimiter">:(after "Parsing reagent(string s)")</span> -<span class="Normal">if</span> <span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span>s<span class="Delimiter">))</span> <span class="Delimiter">{</span> - name = s<span class="Delimiter">;</span> - type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">"literal-fractional-number"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span> - set_value<span class="Delimiter">(</span>to_double<span class="Delimiter">(</span>s<span class="Delimiter">));</span> - <span class="Identifier">return</span><span class="Delimiter">;</span> -<span class="Delimiter">}</span> - -<span class="Delimiter">:(code)</span> -<span class="Normal">bool</span> is_noninteger<span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Identifier">return</span> s<span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">"0123456789-."</span><span class="Delimiter">)</span> == string::npos <span class="Comment">// no other characters</span> - && s<span class="Delimiter">.</span>find_first_of<span class="Delimiter">(</span><span class="Constant">"0123456789"</span><span class="Delimiter">)</span> != string::npos <span class="Comment">// at least one digit</span> - && s<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">'-'</span><span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">)</span> == string::npos <span class="Comment">// '-' only at first position</span> - && std::count<span class="Delimiter">(</span>s<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> s<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> <span class="Constant">'.'</span><span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// exactly one decimal point</span> -<span class="Delimiter">}</span> - -<span class="Normal">double</span> to_double<span class="Delimiter">(</span>string n<span class="Delimiter">)</span> <span class="Delimiter">{</span> - <span class="Normal">char</span>* end = <span class="Constant">NULL</span><span class="Delimiter">;</span> - <span class="Comment">// safe because string.c_str() is guaranteed to be null-terminated</span> - <span class="Normal">double</span> result = strtod<span class="Delimiter">(</span>n<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> &end<span class="Delimiter">);</span> - assert<span class="Delimiter">(</span>*end == <span class="cSpecial">'\0'</span><span class="Delimiter">);</span> - <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span class="Delimiter">}</span> - -<span class="Normal">void</span> test_is_noninteger<span class="Delimiter">()</span> <span class="Delimiter">{</span> - CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"1234"</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"1a2"</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">"234.0"</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"..."</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"."</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">"2."</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">".2"</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">"-.2"</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">"-2."</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"--.2"</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">".-2"</span><span class="Delimiter">));</span> - CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"..2"</span><span class="Delimiter">));</span> -<span class="Delimiter">}</span> +<a name="L1"></a><span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Support literal non-integers.</span> +<a name="L2"></a><span id="L2" class="LineNr"> 2 </span> +<a name="L3"></a><span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(scenarios load)</span> +<a name="L4"></a><span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(scenario noninteger_literal)</span> +<a name="L5"></a><span id="L5" class="LineNr"> 5 </span><span class="muRecipe">def</span> main [ +<a name="L6"></a><span id="L6" class="LineNr"> 6 </span> <span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">3.14159</span> +<a name="L7"></a><span id="L7" class="LineNr"> 7 </span>] +<a name="L8"></a><span id="L8" class="LineNr"> 8 </span><span class="traceContains">+parse: ingredient: {3.14159: "literal-fractional-number"}</span> +<a name="L9"></a><span id="L9" class="LineNr"> 9 </span> +<a name="L10"></a><span id="L10" class="LineNr">10 </span><span class="Delimiter">:(after "Parsing reagent(string s)")</span> +<a name="L11"></a><span id="L11" class="LineNr">11 </span><span class="Normal">if</span> <span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span>s<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<a name="L12"></a><span id="L12" class="LineNr">12 </span> name = s<span class="Delimiter">;</span> +<a name="L13"></a><span id="L13" class="LineNr">13 </span> type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">"literal-fractional-number"</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span> +<a name="L14"></a><span id="L14" class="LineNr">14 </span> set_value<span class="Delimiter">(</span>to_double<span class="Delimiter">(</span>s<span class="Delimiter">));</span> +<a name="L15"></a><span id="L15" class="LineNr">15 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<a name="L16"></a><span id="L16" class="LineNr">16 </span><span class="Delimiter">}</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="Delimiter">:(code)</span> +<a name="L19"></a><span id="L19" class="LineNr">19 </span><span class="Normal">bool</span> is_noninteger<span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L20"></a><span id="L20" class="LineNr">20 </span> <span class="Identifier">return</span> s<span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">"0123456789-."</span><span class="Delimiter">)</span> == string::npos <span class="Comment">// no other characters</span> +<a name="L21"></a><span id="L21" class="LineNr">21 </span> && s<span class="Delimiter">.</span>find_first_of<span class="Delimiter">(</span><span class="Constant">"0123456789"</span><span class="Delimiter">)</span> != string::npos <span class="Comment">// at least one digit</span> +<a name="L22"></a><span id="L22" class="LineNr">22 </span> && s<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">'-'</span><span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">)</span> == string::npos <span class="Comment">// '-' only at first position</span> +<a name="L23"></a><span id="L23" class="LineNr">23 </span> && std::count<span class="Delimiter">(</span>s<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> s<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> <span class="Constant">'.'</span><span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// exactly one decimal point</span> +<a name="L24"></a><span id="L24" class="LineNr">24 </span><span class="Delimiter">}</span> +<a name="L25"></a><span id="L25" class="LineNr">25 </span> +<a name="L26"></a><span id="L26" class="LineNr">26 </span><span class="Normal">double</span> to_double<span class="Delimiter">(</span>string n<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<a name="L27"></a><span id="L27" class="LineNr">27 </span> <span class="Normal">char</span>* end = <span class="Constant">NULL</span><span class="Delimiter">;</span> +<a name="L28"></a><span id="L28" class="LineNr">28 </span> <span class="Comment">// safe because string.c_str() is guaranteed to be null-terminated</span> +<a name="L29"></a><span id="L29" class="LineNr">29 </span> <span class="Normal">double</span> result = strtod<span class="Delimiter">(</span>n<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> &end<span class="Delimiter">);</span> +<a name="L30"></a><span id="L30" class="LineNr">30 </span> assert<span class="Delimiter">(</span>*end == <span class="cSpecial">'\0'</span><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><span class="Normal">void</span> test_is_noninteger<span class="Delimiter">()</span> <span class="Delimiter">{</span> +<a name="L35"></a><span id="L35" class="LineNr">35 </span> CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"1234"</span><span class="Delimiter">));</span> +<a name="L36"></a><span id="L36" class="LineNr">36 </span> CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"1a2"</span><span class="Delimiter">));</span> +<a name="L37"></a><span id="L37" class="LineNr">37 </span> CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">"234.0"</span><span class="Delimiter">));</span> +<a name="L38"></a><span id="L38" class="LineNr">38 </span> CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"..."</span><span class="Delimiter">));</span> +<a name="L39"></a><span id="L39" class="LineNr">39 </span> CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"."</span><span class="Delimiter">));</span> +<a name="L40"></a><span id="L40" class="LineNr">40 </span> CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">"2."</span><span class="Delimiter">));</span> +<a name="L41"></a><span id="L41" class="LineNr">41 </span> CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">".2"</span><span class="Delimiter">));</span> +<a name="L42"></a><span id="L42" class="LineNr">42 </span> CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">"-.2"</span><span class="Delimiter">));</span> +<a name="L43"></a><span id="L43" class="LineNr">43 </span> CHECK<span class="Delimiter">(</span>is_noninteger<span class="Delimiter">(</span><span class="Constant">"-2."</span><span class="Delimiter">));</span> +<a name="L44"></a><span id="L44" class="LineNr">44 </span> CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"--.2"</span><span class="Delimiter">));</span> +<a name="L45"></a><span id="L45" class="LineNr">45 </span> CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">".-2"</span><span class="Delimiter">));</span> +<a name="L46"></a><span id="L46" class="LineNr">46 </span> CHECK<span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">"..2"</span><span class="Delimiter">));</span> +<a name="L47"></a><span id="L47" class="LineNr">47 </span><span class="Delimiter">}</span> </pre> </body> </html> |