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| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="boost_regex.ref.regex_replace"></a><a class="link" href="regex_replace.html" title="regex_replace"> regex_replace</a> |
| </h3></div></div></div> |
| <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">regex</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| </pre> |
| <p> |
| The algorithm <a class="link" href="regex_replace.html" title="regex_replace"><code class="computeroutput"><span class="identifier">regex_replace</span></code></a> searches through a |
| string finding all the matches to the regular expression: for each match |
| it then calls <a class="link" href="match_results.html#boost_regex.match_results_format"><code class="computeroutput"><span class="identifier">match_results</span><span class="special"><>::</span><span class="identifier">format</span></code></a> to format the string and |
| sends the result to the output iterator. Sections of text that do not match |
| are copied to the output unchanged only if the <span class="emphasis"><em>flags</em></span> |
| parameter does not have the flag <code class="computeroutput"><span class="identifier">format_no_copy</span></code> |
| set. If the flag <code class="computeroutput"><span class="identifier">format_first_only</span></code> |
| is set then only the first occurrence is replaced rather than all occurrences. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">OutputIterator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">BidirectionalIterator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Formatter</span><span class="special">></span> |
| <span class="identifier">OutputIterator</span> <span class="identifier">regex_replace</span><span class="special">(</span><span class="identifier">OutputIterator</span> <span class="identifier">out</span><span class="special">,</span> |
| <span class="identifier">BidirectionalIterator</span> <span class="identifier">first</span><span class="special">,</span> |
| <span class="identifier">BidirectionalIterator</span> <span class="identifier">last</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special"><</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">>&</span> <span class="identifier">e</span><span class="special">,</span> |
| <span class="identifier">Formatter</span> <span class="identifier">fmt</span><span class="special">,</span> |
| <span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Formatter</span><span class="special">></span> |
| <span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">charT</span><span class="special">></span> <span class="identifier">regex_replace</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">charT</span><span class="special">>&</span> <span class="identifier">s</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special"><</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">>&</span> <span class="identifier">e</span><span class="special">,</span> |
| <span class="identifier">Formatter</span> <span class="identifier">fmt</span><span class="special">,</span> |
| <span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span> |
| </pre> |
| <a name="boost_regex.ref.regex_replace.description"></a><h5> |
| <a name="id993030"></a> |
| <a class="link" href="regex_replace.html#boost_regex.ref.regex_replace.description">Description</a> |
| </h5> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">OutputIterator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">BidirectionalIterator</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Formatter</span><span class="special">></span> |
| <span class="identifier">OutputIterator</span> <span class="identifier">regex_replace</span><span class="special">(</span><span class="identifier">OutputIterator</span> <span class="identifier">out</span><span class="special">,</span> |
| <span class="identifier">BidirectionalIterator</span> <span class="identifier">first</span><span class="special">,</span> |
| <span class="identifier">BidirectionalIterator</span> <span class="identifier">last</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special"><</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">>&</span> <span class="identifier">e</span><span class="special">,</span> |
| <span class="identifier">Formatter</span> <span class="identifier">fmt</span><span class="special">,</span> |
| <span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span> |
| </pre> |
| <p> |
| Enumerates all the occurences of expression <span class="emphasis"><em>e</em></span> in the |
| sequence [first, last), replacing each occurence with the string that results |
| by merging the match found with the format string <span class="emphasis"><em>fmt</em></span>, |
| and copies the resulting string to <span class="emphasis"><em>out</em></span>. In the case |
| that <span class="emphasis"><em>fmt</em></span> is a unary, binary or ternary function object, |
| then the character sequence generated by that object is copied unchanged |
| to the output when performing a substitution. |
| </p> |
| <p> |
| If the flag <code class="computeroutput"><span class="identifier">format_no_copy</span></code> |
| is set in <span class="emphasis"><em>flags</em></span> then unmatched sections of text are |
| not copied to output. |
| </p> |
| <p> |
| If the flag <code class="computeroutput"><span class="identifier">format_first_only</span></code> |
| is set in flags then only the first occurence of <span class="emphasis"><em>e</em></span> is |
| replaced. |
| </p> |
| <p> |
| The manner in which the format string <span class="emphasis"><em>fmt</em></span> is interpretted, |
| along with the rules used for finding matches, are determined by the flags |
| set in <span class="emphasis"><em>flags</em></span>: see <a class="link" href="match_flag_type.html" title="match_flag_type"><code class="computeroutput"><span class="identifier">match_flag_type</span></code></a>. |
| </p> |
| <p> |
| <span class="bold"><strong>Requires</strong></span> The type <code class="computeroutput"><span class="identifier">Formatter</span></code> |
| must be either a pointer to a null-terminated string of type <code class="computeroutput"><span class="identifier">char_type</span><span class="special">[]</span></code>, |
| or be a container of <code class="computeroutput"><span class="identifier">char_type</span></code>'s |
| (for example <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">char_type</span><span class="special">></span></code>) |
| or be a unary, binary or ternary functor that computes the replacement string |
| from a function call: either <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(</span><span class="identifier">what</span><span class="special">)</span></code> |
| which must return a container of <code class="computeroutput"><span class="identifier">char_type</span></code>'s |
| to be used as the replacement text, or either <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(</span><span class="identifier">what</span><span class="special">,</span> |
| <span class="identifier">out</span><span class="special">)</span></code> |
| or <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(</span><span class="identifier">what</span><span class="special">,</span> <span class="identifier">out</span><span class="special">,</span> <span class="identifier">flags</span><span class="special">)</span></code>, both of which write the replacement text |
| to <code class="computeroutput"><span class="special">*</span><span class="identifier">out</span></code>, |
| and then return the new OutputIterator position. In each case <code class="computeroutput"><span class="identifier">what</span></code> is the <a class="link" href="match_results.html" title="match_results"><code class="computeroutput"><span class="identifier">match_results</span></code></a> object that represents |
| the match found. Note that if the formatter is a functor, then it is <span class="emphasis"><em>passed |
| by value</em></span>: users that want to pass function objects with internal |
| state might want to use <a href="../../../../../../doc/html/ref.html" target="_top">Boost.Ref</a> |
| to wrap the object so that it's passed by reference. |
| </p> |
| <p> |
| <span class="bold"><strong>Effects</strong></span>: Constructs an <a class="link" href="regex_iterator.html" title="regex_iterator"><code class="computeroutput"><span class="identifier">regex_iterator</span></code></a> object: |
| </p> |
| <pre class="programlisting"><span class="identifier">regex_iterator</span><span class="special"><</span><span class="identifier">BidirectionalIterator</span><span class="special">,</span> <span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">,</span> <span class="identifier">Allocator</span><span class="special">></span> |
| <span class="identifier">i</span><span class="special">(</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">last</span><span class="special">,</span> <span class="identifier">e</span><span class="special">,</span> <span class="identifier">flags</span><span class="special">),</span> |
| </pre> |
| <p> |
| and uses <span class="emphasis"><em>i</em></span> to enumerate through all of the matches |
| <span class="emphasis"><em>m</em></span> of type <a class="link" href="match_results.html" title="match_results"><code class="computeroutput"><span class="identifier">match_results</span></code></a> <code class="computeroutput"><span class="special"><</span><span class="identifier">BidirectionalIterator</span><span class="special">></span></code> |
| that occur within the sequence [first, last). |
| </p> |
| <p> |
| If no such matches are found and |
| </p> |
| <pre class="programlisting"><span class="special">!(</span><span class="identifier">flags</span> <span class="special">&</span> <span class="identifier">format_no_copy</span><span class="special">)</span> |
| </pre> |
| <p> |
| then calls |
| </p> |
| <pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">copy</span><span class="special">(</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">last</span><span class="special">,</span> <span class="identifier">out</span><span class="special">).</span> |
| </pre> |
| <p> |
| Otherwise, for each match found, if |
| </p> |
| <pre class="programlisting"><span class="special">!(</span><span class="identifier">flags</span> <span class="special">&</span> <span class="identifier">format_no_copy</span><span class="special">)</span> |
| </pre> |
| <p> |
| calls |
| </p> |
| <pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">copy</span><span class="special">(</span><span class="identifier">m</span><span class="special">.</span><span class="identifier">prefix</span><span class="special">().</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">m</span><span class="special">.</span><span class="identifier">prefix</span><span class="special">().</span><span class="identifier">last</span><span class="special">,</span> <span class="identifier">out</span><span class="special">),</span> |
| </pre> |
| <p> |
| and then calls |
| </p> |
| <pre class="programlisting"><span class="identifier">m</span><span class="special">.</span><span class="identifier">format</span><span class="special">(</span><span class="identifier">out</span><span class="special">,</span> <span class="identifier">fmt</span><span class="special">,</span> <span class="identifier">flags</span><span class="special">).</span> |
| </pre> |
| <p> |
| Finally if |
| </p> |
| <pre class="programlisting"><span class="special">!(</span><span class="identifier">flags</span> <span class="special">&</span> <span class="identifier">format_no_copy</span><span class="special">)</span> |
| </pre> |
| <p> |
| calls |
| </p> |
| <pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">copy</span><span class="special">(</span><span class="identifier">last_m</span><span class="special">.</span><span class="identifier">suffix</span><span class="special">().</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">last_m</span><span class="special">,</span><span class="identifier">suffix</span><span class="special">().</span><span class="identifier">last</span><span class="special">,</span> <span class="identifier">out</span><span class="special">)</span> |
| </pre> |
| <p> |
| where <span class="emphasis"><em>last_m</em></span> is a copy of the last match found. |
| </p> |
| <p> |
| If <code class="computeroutput"><span class="identifier">flags</span> <span class="special">&</span> |
| <span class="identifier">format_first_only</span></code> is non-zero then |
| only the first match found is replaced. |
| </p> |
| <p> |
| <span class="bold"><strong>Throws</strong></span>: <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">runtime_error</span></code> |
| if the complexity of matching the expression against an N character string |
| begins to exceed O(N<sup>2</sup>), or if the program runs out of stack space while matching |
| the expression (if Boost.Regex is configured in recursive mode), or if the |
| matcher exhausts its permitted memory allocation (if Boost.Regex is configured |
| in non-recursive mode). |
| </p> |
| <p> |
| <span class="bold"><strong>Returns</strong></span>: out. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">traits</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Formatter</span><span class="special">></span> |
| <span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">charT</span><span class="special">></span> <span class="identifier">regex_replace</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">charT</span><span class="special">>&</span> <span class="identifier">s</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">basic_regex</span><span class="special"><</span><span class="identifier">charT</span><span class="special">,</span> <span class="identifier">traits</span><span class="special">>&</span> <span class="identifier">e</span><span class="special">,</span> |
| <span class="identifier">Formatter</span> <span class="identifier">fmt</span><span class="special">,</span> |
| <span class="identifier">match_flag_type</span> <span class="identifier">flags</span> <span class="special">=</span> <span class="identifier">match_default</span><span class="special">);</span> |
| </pre> |
| <p> |
| <span class="bold"><strong>Requires</strong></span> The type <code class="computeroutput"><span class="identifier">Formatter</span></code> |
| must be either a pointer to a null-terminated string of type <code class="computeroutput"><span class="identifier">char_type</span><span class="special">[]</span></code>, |
| or be a container of <code class="computeroutput"><span class="identifier">char_type</span></code>'s |
| (for example <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">char_type</span><span class="special">></span></code>) |
| or be a unary, binary or ternary functor that computes the replacement string |
| from a function call: either <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(</span><span class="identifier">what</span><span class="special">)</span></code> |
| which must return a container of <code class="computeroutput"><span class="identifier">char_type</span></code>'s |
| to be used as the replacement text, or either <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(</span><span class="identifier">what</span><span class="special">,</span> |
| <span class="identifier">out</span><span class="special">)</span></code> |
| or <code class="computeroutput"><span class="identifier">fmt</span><span class="special">(</span><span class="identifier">what</span><span class="special">,</span> <span class="identifier">out</span><span class="special">,</span> <span class="identifier">flags</span><span class="special">)</span></code>, both of which write the replacement text |
| to <code class="computeroutput"><span class="special">*</span><span class="identifier">out</span></code>, |
| and then return the new OutputIterator position. In each case <code class="computeroutput"><span class="identifier">what</span></code> is the <a class="link" href="match_results.html" title="match_results"><code class="computeroutput"><span class="identifier">match_results</span></code></a> object that represents |
| the match found. |
| </p> |
| <p> |
| <span class="bold"><strong>Effects</strong></span>: Constructs an object <code class="computeroutput"><span class="identifier">basic_string</span><span class="special"><</span><span class="identifier">charT</span><span class="special">></span> <span class="identifier">result</span></code>, calls <code class="computeroutput"><span class="identifier">regex_replace</span><span class="special">(</span><span class="identifier">back_inserter</span><span class="special">(</span><span class="identifier">result</span><span class="special">),</span> <span class="identifier">s</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">s</span><span class="special">.</span><span class="identifier">end</span><span class="special">(),</span> <span class="identifier">e</span><span class="special">,</span> |
| <span class="identifier">fmt</span><span class="special">,</span> |
| <span class="identifier">flags</span><span class="special">)</span></code>, |
| and then returns <code class="computeroutput"><span class="identifier">result</span></code>. |
| </p> |
| <a name="boost_regex.ref.regex_replace.examples"></a><h5> |
| <a name="id994473"></a> |
| <a class="link" href="regex_replace.html#boost_regex.ref.regex_replace.examples">Examples</a> |
| </h5> |
| <p> |
| The following example takes C/C++ source code as input, and outputs syntax |
| highlighted HTML code. |
| </p> |
| <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">fstream</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">sstream</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">string</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iterator</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">regex</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">fstream</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> |
| |
| <span class="comment">// purpose: |
| </span><span class="comment">// takes the contents of a file and transform to |
| </span><span class="comment">// syntax highlighted code in html format |
| </span> |
| <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex</span> <span class="identifier">e1</span><span class="special">,</span> <span class="identifier">e2</span><span class="special">;</span> |
| <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">expression_text</span><span class="special">;</span> |
| <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">format_string</span><span class="special">;</span> |
| <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">pre_expression</span><span class="special">;</span> |
| <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">pre_format</span><span class="special">;</span> |
| <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">header_text</span><span class="special">;</span> |
| <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">footer_text</span><span class="special">;</span> |
| |
| <span class="keyword">void</span> <span class="identifier">load_file</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">istream</span><span class="special">&</span> <span class="identifier">is</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">s</span><span class="special">.</span><span class="identifier">erase</span><span class="special">();</span> |
| <span class="identifier">s</span><span class="special">.</span><span class="identifier">reserve</span><span class="special">(</span><span class="identifier">is</span><span class="special">.</span><span class="identifier">rdbuf</span><span class="special">()-></span><span class="identifier">in_avail</span><span class="special">());</span> |
| <span class="keyword">char</span> <span class="identifier">c</span><span class="special">;</span> |
| <span class="keyword">while</span><span class="special">(</span><span class="identifier">is</span><span class="special">.</span><span class="identifier">get</span><span class="special">(</span><span class="identifier">c</span><span class="special">))</span> |
| <span class="special">{</span> |
| <span class="keyword">if</span><span class="special">(</span><span class="identifier">s</span><span class="special">.</span><span class="identifier">capacity</span><span class="special">()</span> <span class="special">==</span> <span class="identifier">s</span><span class="special">.</span><span class="identifier">size</span><span class="special">())</span> |
| <span class="identifier">s</span><span class="special">.</span><span class="identifier">reserve</span><span class="special">(</span><span class="identifier">s</span><span class="special">.</span><span class="identifier">capacity</span><span class="special">()</span> <span class="special">*</span> <span class="number">3</span><span class="special">);</span> |
| <span class="identifier">s</span><span class="special">.</span><span class="identifier">append</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="identifier">c</span><span class="special">);</span> |
| <span class="special">}</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">int</span> <span class="identifier">main</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">argc</span><span class="special">,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">**</span> <span class="identifier">argv</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="keyword">try</span><span class="special">{</span> |
| <span class="identifier">e1</span><span class="special">.</span><span class="identifier">assign</span><span class="special">(</span><span class="identifier">expression_text</span><span class="special">);</span> |
| <span class="identifier">e2</span><span class="special">.</span><span class="identifier">assign</span><span class="special">(</span><span class="identifier">pre_expression</span><span class="special">);</span> |
| <span class="keyword">for</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">i</span> <span class="special">=</span> <span class="number">1</span><span class="special">;</span> <span class="identifier">i</span> <span class="special"><</span> <span class="identifier">argc</span><span class="special">;</span> <span class="special">++</span><span class="identifier">i</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Processing file "</span> <span class="special"><<</span> <span class="identifier">argv</span><span class="special">[</span><span class="identifier">i</span><span class="special">]</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">ifstream</span> <span class="identifier">fs</span><span class="special">(</span><span class="identifier">argv</span><span class="special">[</span><span class="identifier">i</span><span class="special">]);</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">in</span><span class="special">;</span> |
| <span class="identifier">load_file</span><span class="special">(</span><span class="identifier">in</span><span class="special">,</span> <span class="identifier">fs</span><span class="special">);</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">out_name</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="identifier">argv</span><span class="special">[</span><span class="identifier">i</span><span class="special">])</span> <span class="special">+</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">(</span><span class="string">".htm"</span><span class="special">));</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">ofstream</span> <span class="identifier">os</span><span class="special">(</span><span class="identifier">out_name</span><span class="special">.</span><span class="identifier">c_str</span><span class="special">());</span> |
| <span class="identifier">os</span> <span class="special"><<</span> <span class="identifier">header_text</span><span class="special">;</span> |
| <span class="comment">// strip '<' and '>' first by outputting to a |
| </span> <span class="comment">// temporary string stream |
| </span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostringstream</span> <span class="identifier">t</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ios</span><span class="special">::</span><span class="identifier">out</span> <span class="special">|</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ios</span><span class="special">::</span><span class="identifier">binary</span><span class="special">);</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream_iterator</span><span class="special"><</span><span class="keyword">char</span><span class="special">,</span> <span class="keyword">char</span><span class="special">></span> <span class="identifier">oi</span><span class="special">(</span><span class="identifier">t</span><span class="special">);</span> |
| <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex_replace</span><span class="special">(</span><span class="identifier">oi</span><span class="special">,</span> <span class="identifier">in</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">in</span><span class="special">.</span><span class="identifier">end</span><span class="special">(),</span> |
| <span class="identifier">e2</span><span class="special">,</span> <span class="identifier">pre_format</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_default</span> <span class="special">|</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">format_all</span><span class="special">);</span> |
| <span class="comment">// then output to final output stream |
| </span> <span class="comment">// adding syntax highlighting: |
| </span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">s</span><span class="special">(</span><span class="identifier">t</span><span class="special">.</span><span class="identifier">str</span><span class="special">());</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream_iterator</span><span class="special"><</span><span class="keyword">char</span><span class="special">,</span> <span class="keyword">char</span><span class="special">></span> <span class="identifier">out</span><span class="special">(</span><span class="identifier">os</span><span class="special">);</span> |
| <span class="identifier">boost</span><span class="special">::</span><span class="identifier">regex_replace</span><span class="special">(</span><span class="identifier">out</span><span class="special">,</span> <span class="identifier">s</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">s</span><span class="special">.</span><span class="identifier">end</span><span class="special">(),</span> |
| <span class="identifier">e1</span><span class="special">,</span> <span class="identifier">format_string</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">match_default</span> <span class="special">|</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">format_all</span><span class="special">);</span> |
| <span class="identifier">os</span> <span class="special"><<</span> <span class="identifier">footer_text</span><span class="special">;</span> |
| <span class="special">}</span> |
| <span class="special">}</span> |
| <span class="keyword">catch</span><span class="special">(...)</span> |
| <span class="special">{</span> <span class="keyword">return</span> <span class="special">-</span><span class="number">1</span><span class="special">;</span> <span class="special">}</span> |
| <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">pre_expression</span> <span class="special">=</span> <span class="string">"(<)|(>)|(&)|\\r"</span><span class="special">;</span> |
| <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">pre_format</span> <span class="special">=</span> <span class="string">"(?1&lt;)(?2&gt;)(?3&amp;)"</span><span class="special">;</span> |
| |
| |
| <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">expression_text</span> <span class="special">=</span> |
| <span class="comment">// preprocessor directives: index 1 |
| </span> <span class="string">"(^[[:blank:]]*#(?:[^\\\\\\n]|\\\\[^\\n[:punct:][:word:]]*[\\n[:punct:][:word:]])*)|"</span> |
| <span class="comment">// comment: index 2 |
| </span> <span class="string">"(//[^\\n]*|/\\*.*?\\*/)|"</span> |
| <span class="comment">// literals: index 3 |
| </span> <span class="string">"\\<([+-]?(?:(?:0x[[:xdigit:]]+)|(?:(?:[[:digit:]]*\\.)?[[:digit:]]+"</span> |
| <span class="string">"(?:[eE][+-]?[[:digit:]]+)?))u?(?:(?:int(?:8|16|32|64))|L)?)\\>|"</span> |
| <span class="comment">// string literals: index 4 |
| </span> <span class="string">"('(?:[^\\\\']|\\\\.)*'|\"(?:[^\\\\\"]|\\\\.)*\")|"</span> |
| <span class="comment">// keywords: index 5 |
| </span> <span class="string">"\\<(__asm|__cdecl|__declspec|__export|__far16|__fastcall|__fortran|__import"</span> |
| <span class="string">"|__pascal|__rtti|__stdcall|_asm|_cdecl|__except|_export|_far16|_fastcall"</span> |
| <span class="string">"|__finally|_fortran|_import|_pascal|_stdcall|__thread|__try|asm|auto|bool"</span> |
| <span class="string">"|break|case|catch|cdecl|char|class|const|const_cast|continue|default|delete"</span> |
| <span class="string">"|do|double|dynamic_cast|else|enum|explicit|extern|false|float|for|friend|goto"</span> |
| <span class="string">"|if|inline|int|long|mutable|namespace|new|operator|pascal|private|protected"</span> |
| <span class="string">"|public|register|reinterpret_cast|return|short|signed|sizeof|static|static_cast"</span> |
| <span class="string">"|struct|switch|template|this|throw|true|try|typedef|typeid|typename|union|unsigned"</span> |
| <span class="string">"|using|virtual|void|volatile|wchar_t|while)\\>"</span> |
| <span class="special">;</span> |
| |
| <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">format_string</span> <span class="special">=</span> <span class="string">"(?1<font color=\"#008040\">$&</font>)"</span> |
| <span class="string">"(?2<I><font color=\"#000080\">$&</font></I>)"</span> |
| <span class="string">"(?3<font color=\"#0000A0\">$&</font>)"</span> |
| <span class="string">"(?4<font color=\"#0000FF\">$&</font>)"</span> |
| <span class="string">"(?5<B>$&</B>)"</span><span class="special">;</span> |
| |
| <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">header_text</span> <span class="special">=</span> |
| <span class="string">"<HTML>\n<HEAD>\n"</span> |
| <span class="string">"<TITLE>Auto-generated html formated source</TITLE>\n"</span> |
| <span class="string">"<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=windows-1252\">\n"</span> |
| <span class="string">"</HEAD>\n"</span> |
| <span class="string">"<BODY LINK=\"#0000ff\" VLINK=\"#800080\" BGCOLOR=\"#ffffff\">\n"</span> |
| <span class="string">"<P> </P>\n<PRE>"</span><span class="special">;</span> |
| |
| <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">footer_text</span> <span class="special">=</span> <span class="string">"</PRE>\n</BODY>\n\n"</span><span class="special">;</span> |
| </pre> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 1998 -2010 John Maddock<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
| </p> |
| </div></td> |
| </tr></table> |
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