<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>Apache Portable Runtime: Command Argument Parsing</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body onload='searchBox.OnSelectItem(0);'> <!-- Generated by Doxygen 1.7.3 --> <script type="text/javascript"><!-- var searchBox = new SearchBox("searchBox", "search",false,'Search'); --></script> <div id="top"> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">Apache Portable Runtime</div> </td> </tr> </tbody> </table> </div> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li id="searchli"> <div id="MSearchBox" class="MSearchBoxInactive"> <span class="left"> <img id="MSearchSelect" src="search/mag_sel.png" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" alt=""/> <input type="text" id="MSearchField" value="Search" accesskey="S" onfocus="searchBox.OnSearchFieldFocus(true)" onblur="searchBox.OnSearchFieldFocus(false)" onkeyup="searchBox.OnSearchFieldChange(event)"/> </span><span class="right"> <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a> </span> </div> </li> </ul> </div> </div> <div class="header"> <div class="summary"> <a href="#nested-classes">Data Structures</a> | <a href="#typedef-members">Typedefs</a> | <a href="#func-members">Functions</a> </div> <div class="headertitle"> <h1>Command Argument Parsing</h1> </div> <div class="ingroups"><a class="el" href="group___a_p_r.html">Apache Portability Runtime library</a></div></div> <div class="contents"> <table class="memberdecls"> <tr><td colspan="2"><h2><a name="nested-classes"></a> Data Structures</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__getopt__t.html">apr_getopt_t</a></td></tr> <tr><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__getopt__option__t.html">apr_getopt_option_t</a></td></tr> <tr><td colspan="2"><h2><a name="typedef-members"></a> Typedefs</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">typedef void( </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__getopt.html#gae82318936f08cc3531ce9b0856422f27">apr_getopt_err_fn_t</a> )(void *arg, const char *err,...)</td></tr> <tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__getopt.html#gaed49565eab64803e93f76d0c40d6873d">apr_getopt_t</a></td></tr> <tr><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structapr__getopt__option__t.html">apr_getopt_option_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__getopt.html#ga114d2af52f3573eaeee2ffa73b2c4ff5">apr_getopt_option_t</a></td></tr> <tr><td colspan="2"><h2><a name="func-members"></a> Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__getopt.html#gaaab2b4bfb62361af7a2d427f5f29a3d4">apr_getopt_init</a> (<a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> **os, <a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *cont, int argc, const char *const *argv)</td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__getopt.html#ga289cdcf7eacc997eb91fea7c02d08934">apr_getopt</a> (<a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> *os, const char *opts, char *option_ch, const char **option_arg)</td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__getopt.html#ga80d6ff2213da4e25406b3f179fa13989">apr_getopt_long</a> (<a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> *os, const <a class="el" href="structapr__getopt__option__t.html">apr_getopt_option_t</a> *opts, int *option_ch, const char **option_arg)</td></tr> </table> <hr/><h2>Typedef Documentation</h2> <a class="anchor" id="gae82318936f08cc3531ce9b0856422f27"></a><!-- doxytag: member="apr_getopt.h::apr_getopt_err_fn_t" ref="gae82318936f08cc3531ce9b0856422f27" args=")(void *arg, const char *err,...)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">typedef void( <a class="el" href="group__apr__getopt.html#gae82318936f08cc3531ce9b0856422f27">apr_getopt_err_fn_t</a>)(void *arg, const char *err,...)</td> </tr> </table> </div> <div class="memdoc"> <p>An <code><a class="el" href="structapr__getopt__t.html">apr_getopt_t</a></code> error callback function.</p> <p><em>arg</em> is this <code>apr_getopt_t's</code> <code>errarg</code> member. </p> </div> </div> <a class="anchor" id="ga114d2af52f3573eaeee2ffa73b2c4ff5"></a><!-- doxytag: member="apr_getopt.h::apr_getopt_option_t" ref="ga114d2af52f3573eaeee2ffa73b2c4ff5" args="" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">typedef struct <a class="el" href="structapr__getopt__option__t.html">apr_getopt_option_t</a> <a class="el" href="structapr__getopt__option__t.html">apr_getopt_option_t</a></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="structapr__getopt__option__t.html">apr_getopt_option_t</a> </dd></dl> </div> </div> <a class="anchor" id="gaed49565eab64803e93f76d0c40d6873d"></a><!-- doxytag: member="apr_getopt.h::apr_getopt_t" ref="gaed49565eab64803e93f76d0c40d6873d" args="" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">typedef struct <a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> <a class="el" href="structapr__getopt__t.html">apr_getopt_t</a></td> </tr> </table> </div> <div class="memdoc"> <dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> </dd></dl> </div> </div> <hr/><h2>Function Documentation</h2> <a class="anchor" id="ga289cdcf7eacc997eb91fea7c02d08934"></a><!-- doxytag: member="apr_getopt.h::apr_getopt" ref="ga289cdcf7eacc997eb91fea7c02d08934" args="(apr_getopt_t *os, const char *opts, char *option_ch, const char **option_arg)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_getopt </td> <td>(</td> <td class="paramtype"><a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> * </td> <td class="paramname"><em>os</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const char * </td> <td class="paramname"><em>opts</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">char * </td> <td class="paramname"><em>option_ch</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const char ** </td> <td class="paramname"><em>option_arg</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Parse the options initialized by <a class="el" href="group__apr__getopt.html#gaaab2b4bfb62361af7a2d427f5f29a3d4">apr_getopt_init()</a>. </p> <dl><dt><b>Parameters:</b></dt><dd> <table class="params"> <tr><td class="paramname">os</td><td>The apr_opt_t structure returned by <a class="el" href="group__apr__getopt.html#gaaab2b4bfb62361af7a2d427f5f29a3d4">apr_getopt_init()</a> </td></tr> <tr><td class="paramname">opts</td><td>A string of characters that are acceptable options to the program. Characters followed by ":" are required to have an option associated </td></tr> <tr><td class="paramname">option_ch</td><td>The next option character parsed </td></tr> <tr><td class="paramname">option_arg</td><td>The argument following the option character: </td></tr> </table> </dd> </dl> <dl class="return"><dt><b>Returns:</b></dt><dd>There are four potential status values on exit. They are: <pre> APR_EOF -- No more options to parse APR_BADCH -- Found a bad option character APR_BADARG -- No argument followed the option flag APR_SUCCESS -- The next option was found. </pre> </dd></dl> </div> </div> <a class="anchor" id="gaaab2b4bfb62361af7a2d427f5f29a3d4"></a><!-- doxytag: member="apr_getopt.h::apr_getopt_init" ref="gaaab2b4bfb62361af7a2d427f5f29a3d4" args="(apr_getopt_t **os, apr_pool_t *cont, int argc, const char *const *argv)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_getopt_init </td> <td>(</td> <td class="paramtype"><a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> ** </td> <td class="paramname"><em>os</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> * </td> <td class="paramname"><em>cont</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int </td> <td class="paramname"><em>argc</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const char *const * </td> <td class="paramname"><em>argv</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Initialize the arguments for parsing by <a class="el" href="group__apr__getopt.html#ga289cdcf7eacc997eb91fea7c02d08934">apr_getopt()</a>. </p> <dl><dt><b>Parameters:</b></dt><dd> <table class="params"> <tr><td class="paramname">os</td><td>The options structure created for <a class="el" href="group__apr__getopt.html#ga289cdcf7eacc997eb91fea7c02d08934">apr_getopt()</a> </td></tr> <tr><td class="paramname">cont</td><td>The pool to operate on </td></tr> <tr><td class="paramname">argc</td><td>The number of arguments to parse </td></tr> <tr><td class="paramname">argv</td><td>The array of arguments to parse </td></tr> </table> </dd> </dl> <dl class="remark"><dt><b>Remarks:</b></dt><dd>Arguments 3 and 4 are most commonly argc and argv from main(argc, argv) The (*os)->errfn is initialized to fprintf(stderr... but may be overridden. </dd></dl> </div> </div> <a class="anchor" id="ga80d6ff2213da4e25406b3f179fa13989"></a><!-- doxytag: member="apr_getopt.h::apr_getopt_long" ref="ga80d6ff2213da4e25406b3f179fa13989" args="(apr_getopt_t *os, const apr_getopt_option_t *opts, int *option_ch, const char **option_arg)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_getopt_long </td> <td>(</td> <td class="paramtype"><a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> * </td> <td class="paramname"><em>os</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="structapr__getopt__option__t.html">apr_getopt_option_t</a> * </td> <td class="paramname"><em>opts</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">int * </td> <td class="paramname"><em>option_ch</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const char ** </td> <td class="paramname"><em>option_arg</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Parse the options initialized by <a class="el" href="group__apr__getopt.html#gaaab2b4bfb62361af7a2d427f5f29a3d4">apr_getopt_init()</a>, accepting long options beginning with "--" in addition to single-character options beginning with "-". </p> <dl><dt><b>Parameters:</b></dt><dd> <table class="params"> <tr><td class="paramname">os</td><td>The <a class="el" href="structapr__getopt__t.html">apr_getopt_t</a> structure created by <a class="el" href="group__apr__getopt.html#gaaab2b4bfb62361af7a2d427f5f29a3d4">apr_getopt_init()</a> </td></tr> <tr><td class="paramname">opts</td><td>A pointer to a list of <a class="el" href="structapr__getopt__option__t.html">apr_getopt_option_t</a> structures, which can be initialized with { "name", optch, has_args }. has_args is nonzero if the option requires an argument. A structure with an optch value of 0 terminates the list. </td></tr> <tr><td class="paramname">option_ch</td><td>Receives the value of "optch" from the <a class="el" href="structapr__getopt__option__t.html">apr_getopt_option_t</a> structure corresponding to the next option matched. </td></tr> <tr><td class="paramname">option_arg</td><td>Receives the argument following the option, if any. </td></tr> </table> </dd> </dl> <dl class="return"><dt><b>Returns:</b></dt><dd>There are four potential status values on exit. They are: <pre> APR_EOF -- No more options to parse APR_BADCH -- Found a bad option character APR_BADARG -- No argument followed the option flag APR_SUCCESS -- The next option was found. </pre> When APR_SUCCESS is returned, os->ind gives the index of the first non-option argument. On error, a message will be printed to stdout unless os->err is set to 0. If os->interleave is set to nonzero, options can come after arguments, and os->argv will be permuted to leave non-option arguments at the end (the original argv is unaffected). </dd></dl> </div> </div> </div> <!--- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> <a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark"> </span>Defines</a></div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <hr class="footer"/><address class="footer"><small>Generated on Wed May 25 2011 for Apache Portable Runtime by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.3 </small></address> </body> </html>