<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> <title>LibOFX: getopt.c Source File</title> <link href="doxygen.css" rel="stylesheet" type="text/css"> <link href="tabs.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.5.0 --> <div class="tabs"> <ul> <li><a href="main.html"><span>Main Page</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 id="current"><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div> <div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul></div> <h1>getopt.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* Getopt for GNU.</span> <a name="l00002"></a>00002 <span class="comment"> NOTE: getopt is now part of the C library, so if you don't know what</span> <a name="l00003"></a>00003 <span class="comment"> "Keep this file name-space clean" means, talk to drepper@gnu.org</span> <a name="l00004"></a>00004 <span class="comment"> before changing it!</span> <a name="l00005"></a>00005 <span class="comment"> Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001</span> <a name="l00006"></a>00006 <span class="comment"> Free Software Foundation, Inc.</span> <a name="l00007"></a>00007 <span class="comment"> This file is part of the GNU C Library.</span> <a name="l00008"></a>00008 <span class="comment"></span> <a name="l00009"></a>00009 <span class="comment"> The GNU C Library is free software; you can redistribute it and/or</span> <a name="l00010"></a>00010 <span class="comment"> modify it under the terms of the GNU Lesser General Public</span> <a name="l00011"></a>00011 <span class="comment"> License as published by the Free Software Foundation; either</span> <a name="l00012"></a>00012 <span class="comment"> version 2.1 of the License, or (at your option) any later version.</span> <a name="l00013"></a>00013 <span class="comment"></span> <a name="l00014"></a>00014 <span class="comment"> The GNU C Library is distributed in the hope that it will be useful,</span> <a name="l00015"></a>00015 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span> <a name="l00016"></a>00016 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span> <a name="l00017"></a>00017 <span class="comment"> Lesser General Public License for more details.</span> <a name="l00018"></a>00018 <span class="comment"></span> <a name="l00019"></a>00019 <span class="comment"> You should have received a copy of the GNU Lesser General Public</span> <a name="l00020"></a>00020 <span class="comment"> License along with the GNU C Library; if not, write to the Free</span> <a name="l00021"></a>00021 <span class="comment"> Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA</span> <a name="l00022"></a>00022 <span class="comment"> 02111-1307 USA. */</span> <a name="l00023"></a>00023 <a name="l00024"></a>00024 <span class="comment">/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.</span> <a name="l00025"></a>00025 <span class="comment"> Ditto for AIX 3.2 and <stdlib.h>. */</span> <a name="l00026"></a>00026 <span class="preprocessor">#ifndef _NO_PROTO</span> <a name="l00027"></a>00027 <span class="preprocessor"></span><span class="preprocessor"># define _NO_PROTO</span> <a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00029"></a>00029 <span class="preprocessor"></span> <a name="l00030"></a>00030 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span> <a name="l00031"></a>00031 <span class="preprocessor"></span><span class="preprocessor"># include <config.h></span> <a name="l00032"></a>00032 <span class="preprocessor">#endif</span> <a name="l00033"></a>00033 <span class="preprocessor"></span> <a name="l00034"></a>00034 <span class="preprocessor">#if !defined __STDC__ || !__STDC__</span> <a name="l00035"></a>00035 <span class="preprocessor"></span><span class="comment">/* This is a separate conditional since some stdc systems</span> <a name="l00036"></a>00036 <span class="comment"> reject `defined (const)'. */</span> <a name="l00037"></a>00037 <span class="preprocessor"># ifndef const</span> <a name="l00038"></a>00038 <span class="preprocessor"></span><span class="preprocessor"># define const</span> <a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor"># endif</span> <a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00041"></a>00041 <span class="preprocessor"></span> <a name="l00042"></a>00042 <span class="preprocessor">#include <stdio.h></span> <a name="l00043"></a>00043 <a name="l00044"></a>00044 <span class="comment">/* Comment out all this code if we are using the GNU C Library, and are not</span> <a name="l00045"></a>00045 <span class="comment"> actually compiling the library itself. This code is part of the GNU C</span> <a name="l00046"></a>00046 <span class="comment"> Library, but also included in many other GNU distributions. Compiling</span> <a name="l00047"></a>00047 <span class="comment"> and linking in this code is a waste when using the GNU C library</span> <a name="l00048"></a>00048 <span class="comment"> (especially if it is a shared library). Rather than having every GNU</span> <a name="l00049"></a>00049 <span class="comment"> program understand `configure --with-gnu-libc' and omit the object files,</span> <a name="l00050"></a>00050 <span class="comment"> it is simpler to just do this in the source for each such file. */</span> <a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="preprocessor">#define GETOPT_INTERFACE_VERSION 2</span> <a name="l00053"></a>00053 <span class="preprocessor"></span><span class="preprocessor">#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2</span> <a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor"># include <gnu-versions.h></span> <a name="l00055"></a>00055 <span class="preprocessor"># if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION</span> <a name="l00056"></a>00056 <span class="preprocessor"></span><span class="preprocessor"># define ELIDE_CODE</span> <a name="l00057"></a>00057 <span class="preprocessor"></span><span class="preprocessor"># endif</span> <a name="l00058"></a>00058 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00059"></a>00059 <span class="preprocessor"></span> <a name="l00060"></a>00060 <span class="preprocessor">#ifndef ELIDE_CODE</span> <a name="l00061"></a>00061 <span class="preprocessor"></span> <a name="l00062"></a>00062 <a name="l00063"></a>00063 <span class="comment">/* This needs to come after some library #include</span> <a name="l00064"></a>00064 <span class="comment"> to get __GNU_LIBRARY__ defined. */</span> <a name="l00065"></a>00065 <span class="preprocessor">#ifdef __GNU_LIBRARY__</span> <a name="l00066"></a>00066 <span class="preprocessor"></span><span class="comment">/* Don't include stdlib.h for non-GNU C libraries because some of them</span> <a name="l00067"></a>00067 <span class="comment"> contain conflicting prototypes for getopt. */</span> <a name="l00068"></a>00068 <span class="preprocessor"># include <stdlib.h></span> <a name="l00069"></a>00069 <span class="preprocessor"># include <unistd.h></span> <a name="l00070"></a>00070 <span class="preprocessor">#endif </span><span class="comment">/* GNU C library. */</span> <a name="l00071"></a>00071 <a name="l00072"></a>00072 <span class="preprocessor">#ifdef VMS</span> <a name="l00073"></a>00073 <span class="preprocessor"></span><span class="preprocessor"># include <unixlib.h></span> <a name="l00074"></a>00074 <span class="preprocessor"># if HAVE_STRING_H - 0</span> <a name="l00075"></a>00075 <span class="preprocessor"></span><span class="preprocessor"># include <string.h></span> <a name="l00076"></a>00076 <span class="preprocessor"># endif</span> <a name="l00077"></a>00077 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00078"></a>00078 <span class="preprocessor"></span> <a name="l00079"></a>00079 <span class="preprocessor">#ifndef _</span> <a name="l00080"></a>00080 <span class="preprocessor"></span><span class="comment">/* This is for other GNU distributions with internationalized messages. */</span> <a name="l00081"></a>00081 <span class="preprocessor"># if defined HAVE_LIBINTL_H || defined _LIBC</span> <a name="l00082"></a>00082 <span class="preprocessor"></span><span class="preprocessor"># include <libintl.h></span> <a name="l00083"></a>00083 <span class="preprocessor"># ifndef _</span> <a name="l00084"></a>00084 <span class="preprocessor"></span><span class="preprocessor"># define _(msgid) gettext (msgid)</span> <a name="l00085"></a>00085 <span class="preprocessor"></span><span class="preprocessor"># endif</span> <a name="l00086"></a>00086 <span class="preprocessor"></span><span class="preprocessor"># else</span> <a name="l00087"></a>00087 <span class="preprocessor"></span><span class="preprocessor"># define _(msgid) (msgid)</span> <a name="l00088"></a>00088 <span class="preprocessor"></span><span class="preprocessor"># endif</span> <a name="l00089"></a>00089 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00090"></a>00090 <span class="preprocessor"></span> <a name="l00091"></a>00091 <span class="comment">/* This version of `getopt' appears to the caller like standard Unix `getopt'</span> <a name="l00092"></a>00092 <span class="comment"> but it behaves differently for the user, since it allows the user</span> <a name="l00093"></a>00093 <span class="comment"> to intersperse the options with the other arguments.</span> <a name="l00094"></a>00094 <span class="comment"></span> <a name="l00095"></a>00095 <span class="comment"> As `getopt' works, it permutes the elements of ARGV so that,</span> <a name="l00096"></a>00096 <span class="comment"> when it is done, all the options precede everything else. Thus</span> <a name="l00097"></a>00097 <span class="comment"> all application programs are extended to handle flexible argument order.</span> <a name="l00098"></a>00098 <span class="comment"></span> <a name="l00099"></a>00099 <span class="comment"> Setting the environment variable POSIXLY_CORRECT disables permutation.</span> <a name="l00100"></a>00100 <span class="comment"> Then the behavior is completely standard.</span> <a name="l00101"></a>00101 <span class="comment"></span> <a name="l00102"></a>00102 <span class="comment"> GNU application programs can use a third alternative mode in which</span> <a name="l00103"></a>00103 <span class="comment"> they can distinguish the relative order of options and other arguments. */</span> <a name="l00104"></a>00104 <a name="l00105"></a>00105 <span class="preprocessor">#include "getopt.h"</span> <a name="l00106"></a>00106 <a name="l00107"></a>00107 <span class="comment">/* For communication from `getopt' to the caller.</span> <a name="l00108"></a>00108 <span class="comment"> When `getopt' finds an option that takes an argument,</span> <a name="l00109"></a>00109 <span class="comment"> the argument value is returned here.</span> <a name="l00110"></a>00110 <span class="comment"> Also, when `ordering' is RETURN_IN_ORDER,</span> <a name="l00111"></a>00111 <span class="comment"> each non-option ARGV-element is returned here. */</span> <a name="l00112"></a>00112 <a name="l00113"></a>00113 <span class="keywordtype">char</span> *optarg; <a name="l00114"></a>00114 <a name="l00115"></a>00115 <span class="comment">/* Index in ARGV of the next element to be scanned.</span> <a name="l00116"></a>00116 <span class="comment"> This is used for communication to and from the caller</span> <a name="l00117"></a>00117 <span class="comment"> and for communication between successive calls to `getopt'.</span> <a name="l00118"></a>00118 <span class="comment"></span> <a name="l00119"></a>00119 <span class="comment"> On entry to `getopt', zero means this is the first call; initialize.</span> <a name="l00120"></a>00120 <span class="comment"></span> <a name="l00121"></a>00121 <span class="comment"> When `getopt' returns -1, this is the index of the first of the</span> <a name="l00122"></a>00122 <span class="comment"> non-option elements that the caller should itself scan.</span> <a name="l00123"></a>00123 <span class="comment"></span> <a name="l00124"></a>00124 <span class="comment"> Otherwise, `optind' communicates from one call to the next</span> <a name="l00125"></a>00125 <span class="comment"> how much of ARGV has been scanned so far. */</span> <a name="l00126"></a>00126 <a name="l00127"></a>00127 <span class="comment">/* 1003.2 says this must be 1 before any call. */</span> <a name="l00128"></a>00128 <span class="keywordtype">int</span> optind = 1; <a name="l00129"></a>00129 <a name="l00130"></a>00130 <span class="comment">/* Formerly, initialization of getopt depended on optind==0, which</span> <a name="l00131"></a>00131 <span class="comment"> causes problems with re-calling getopt as programs generally don't</span> <a name="l00132"></a>00132 <span class="comment"> know that. */</span> <a name="l00133"></a>00133 <a name="l00134"></a>00134 <span class="keywordtype">int</span> __getopt_initialized; <a name="l00135"></a>00135 <a name="l00136"></a>00136 <span class="comment">/* The next char to be scanned in the option-element</span> <a name="l00137"></a>00137 <span class="comment"> in which the last option character we returned was found.</span> <a name="l00138"></a>00138 <span class="comment"> This allows us to pick up the scan where we left off.</span> <a name="l00139"></a>00139 <span class="comment"></span> <a name="l00140"></a>00140 <span class="comment"> If this is zero, or a null string, it means resume the scan</span> <a name="l00141"></a>00141 <span class="comment"> by advancing to the next ARGV-element. */</span> <a name="l00142"></a>00142 <a name="l00143"></a>00143 <span class="keyword">static</span> <span class="keywordtype">char</span> *nextchar; <a name="l00144"></a>00144 <a name="l00145"></a>00145 <span class="comment">/* Callers store zero here to inhibit the error message</span> <a name="l00146"></a>00146 <span class="comment"> for unrecognized options. */</span> <a name="l00147"></a>00147 <a name="l00148"></a>00148 <span class="keywordtype">int</span> opterr = 1; <a name="l00149"></a>00149 <a name="l00150"></a>00150 <span class="comment">/* Set to an option character which was unrecognized.</span> <a name="l00151"></a>00151 <span class="comment"> This must be initialized on some systems to avoid linking in the</span> <a name="l00152"></a>00152 <span class="comment"> system's own getopt implementation. */</span> <a name="l00153"></a>00153 <a name="l00154"></a>00154 <span class="keywordtype">int</span> optopt = <span class="charliteral">'?'</span>; <a name="l00155"></a>00155 <a name="l00156"></a>00156 <span class="comment">/* Describe how to deal with options that follow non-option ARGV-elements.</span> <a name="l00157"></a>00157 <span class="comment"></span> <a name="l00158"></a>00158 <span class="comment"> If the caller did not specify anything,</span> <a name="l00159"></a>00159 <span class="comment"> the default is REQUIRE_ORDER if the environment variable</span> <a name="l00160"></a>00160 <span class="comment"> POSIXLY_CORRECT is defined, PERMUTE otherwise.</span> <a name="l00161"></a>00161 <span class="comment"></span> <a name="l00162"></a>00162 <span class="comment"> REQUIRE_ORDER means don't recognize them as options;</span> <a name="l00163"></a>00163 <span class="comment"> stop option processing when the first non-option is seen.</span> <a name="l00164"></a>00164 <span class="comment"> This is what Unix does.</span> <a name="l00165"></a>00165 <span class="comment"> This mode of operation is selected by either setting the environment</span> <a name="l00166"></a>00166 <span class="comment"> variable POSIXLY_CORRECT, or using `+' as the first character</span> <a name="l00167"></a>00167 <span class="comment"> of the list of option characters.</span> <a name="l00168"></a>00168 <span class="comment"></span> <a name="l00169"></a>00169 <span class="comment"> PERMUTE is the default. We permute the contents of ARGV as we scan,</span> <a name="l00170"></a>00170 <span class="comment"> so that eventually all the non-options are at the end. This allows options</span> <a name="l00171"></a>00171 <span class="comment"> to be given in any order, even with programs that were not written to</span> <a name="l00172"></a>00172 <span class="comment"> expect this.</span> <a name="l00173"></a>00173 <span class="comment"></span> <a name="l00174"></a>00174 <span class="comment"> RETURN_IN_ORDER is an option available to programs that were written</span> <a name="l00175"></a>00175 <span class="comment"> to expect options and other ARGV-elements in any order and that care about</span> <a name="l00176"></a>00176 <span class="comment"> the ordering of the two. We describe each non-option ARGV-element</span> <a name="l00177"></a>00177 <span class="comment"> as if it were the argument of an option with character code 1.</span> <a name="l00178"></a>00178 <span class="comment"> Using `-' as the first character of the list of option characters</span> <a name="l00179"></a>00179 <span class="comment"> selects this mode of operation.</span> <a name="l00180"></a>00180 <span class="comment"></span> <a name="l00181"></a>00181 <span class="comment"> The special argument `--' forces an end of option-scanning regardless</span> <a name="l00182"></a>00182 <span class="comment"> of the value of `ordering'. In the case of RETURN_IN_ORDER, only</span> <a name="l00183"></a>00183 <span class="comment"> `--' can cause `getopt' to return -1 with `optind' != ARGC. */</span> <a name="l00184"></a>00184 <a name="l00185"></a>00185 <span class="keyword">static</span> <span class="keyword">enum</span> <a name="l00186"></a>00186 { <a name="l00187"></a>00187 REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER <a name="l00188"></a>00188 } ordering; <a name="l00189"></a>00189 <a name="l00190"></a>00190 <span class="comment">/* Value of POSIXLY_CORRECT environment variable. */</span> <a name="l00191"></a>00191 <span class="keyword">static</span> <span class="keywordtype">char</span> *posixly_correct; <a name="l00192"></a>00192 <a name="l00193"></a>00193 <span class="preprocessor">#ifdef __GNU_LIBRARY__</span> <a name="l00194"></a>00194 <span class="preprocessor"></span><span class="comment">/* We want to avoid inclusion of string.h with non-GNU libraries</span> <a name="l00195"></a>00195 <span class="comment"> because there are many ways it can cause trouble.</span> <a name="l00196"></a>00196 <span class="comment"> On some systems, it contains special magic macros that don't work</span> <a name="l00197"></a>00197 <span class="comment"> in GCC. */</span> <a name="l00198"></a>00198 <span class="preprocessor"># include <string.h></span> <a name="l00199"></a>00199 <span class="preprocessor"># define my_index strchr</span> <a name="l00200"></a>00200 <span class="preprocessor"></span><span class="preprocessor">#else</span> <a name="l00201"></a>00201 <span class="preprocessor"></span> <a name="l00202"></a>00202 <span class="preprocessor"># if HAVE_STRING_H</span> <a name="l00203"></a>00203 <span class="preprocessor"></span><span class="preprocessor"># include <string.h></span> <a name="l00204"></a>00204 <span class="preprocessor"># else</span> <a name="l00205"></a>00205 <span class="preprocessor"></span><span class="preprocessor"># include <strings.h></span> <a name="l00206"></a>00206 <span class="preprocessor"># endif</span> <a name="l00207"></a>00207 <span class="preprocessor"></span> <a name="l00208"></a>00208 <span class="comment">/* Avoid depending on library functions or files</span> <a name="l00209"></a>00209 <span class="comment"> whose names are inconsistent. */</span> <a name="l00210"></a>00210 <a name="l00211"></a>00211 <span class="preprocessor">#ifndef getenv</span> <a name="l00212"></a>00212 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="keywordtype">char</span> *getenv (); <a name="l00213"></a>00213 <span class="preprocessor">#endif</span> <a name="l00214"></a>00214 <span class="preprocessor"></span> <a name="l00215"></a>00215 <span class="keyword">static</span> <span class="keywordtype">char</span> * <a name="l00216"></a>00216 my_index (str, chr) <a name="l00217"></a>00217 const <span class="keywordtype">char</span> *str; <a name="l00218"></a>00218 <span class="keywordtype">int</span> chr; <a name="l00219"></a>00219 { <a name="l00220"></a>00220 <span class="keywordflow">while</span> (*str) <a name="l00221"></a>00221 { <a name="l00222"></a>00222 <span class="keywordflow">if</span> (*str == chr) <a name="l00223"></a>00223 <span class="keywordflow">return</span> (<span class="keywordtype">char</span> *) str; <a name="l00224"></a>00224 str++; <a name="l00225"></a>00225 } <a name="l00226"></a>00226 <span class="keywordflow">return</span> 0; <a name="l00227"></a>00227 } <a name="l00228"></a>00228 <a name="l00229"></a>00229 <span class="comment">/* If using GCC, we can safely declare strlen this way.</span> <a name="l00230"></a>00230 <span class="comment"> If not using GCC, it is ok not to declare it. */</span> <a name="l00231"></a>00231 <span class="preprocessor">#ifdef __GNUC__</span> <a name="l00232"></a>00232 <span class="preprocessor"></span><span class="comment">/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.</span> <a name="l00233"></a>00233 <span class="comment"> That was relevant to code that was here before. */</span> <a name="l00234"></a>00234 <span class="preprocessor"># if (!defined __STDC__ || !__STDC__) && !defined strlen</span> <a name="l00235"></a>00235 <span class="preprocessor"></span><span class="comment">/* gcc with -traditional declares the built-in strlen to return int,</span> <a name="l00236"></a>00236 <span class="comment"> and has done so at least since version 2.4.5. -- rms. */</span> <a name="l00237"></a>00237 <span class="keyword">extern</span> <span class="keywordtype">int</span> strlen (<span class="keyword">const</span> <span class="keywordtype">char</span> *); <a name="l00238"></a>00238 <span class="preprocessor"># endif </span><span class="comment">/* not __STDC__ */</span> <a name="l00239"></a>00239 <span class="preprocessor">#endif </span><span class="comment">/* __GNUC__ */</span> <a name="l00240"></a>00240 <a name="l00241"></a>00241 <span class="preprocessor">#endif </span><span class="comment">/* not __GNU_LIBRARY__ */</span> <a name="l00242"></a>00242 <a name="l00243"></a>00243 <span class="comment">/* Handle permutation of arguments. */</span> <a name="l00244"></a>00244 <a name="l00245"></a>00245 <span class="comment">/* Describe the part of ARGV that contains non-options that have</span> <a name="l00246"></a>00246 <span class="comment"> been skipped. `first_nonopt' is the index in ARGV of the first of them;</span> <a name="l00247"></a>00247 <span class="comment"> `last_nonopt' is the index after the last of them. */</span> <a name="l00248"></a>00248 <a name="l00249"></a>00249 <span class="keyword">static</span> <span class="keywordtype">int</span> first_nonopt; <a name="l00250"></a>00250 <span class="keyword">static</span> <span class="keywordtype">int</span> last_nonopt; <a name="l00251"></a>00251 <a name="l00252"></a>00252 <span class="preprocessor">#ifdef _LIBC</span> <a name="l00253"></a>00253 <span class="preprocessor"></span><span class="comment">/* Stored original parameters.</span> <a name="l00254"></a>00254 <span class="comment"> XXX This is no good solution. We should rather copy the args so</span> <a name="l00255"></a>00255 <span class="comment"> that we can compare them later. But we must not use malloc(3). */</span> <a name="l00256"></a>00256 <span class="keyword">extern</span> <span class="keywordtype">int</span> __libc_argc; <a name="l00257"></a>00257 <span class="keyword">extern</span> <span class="keywordtype">char</span> **__libc_argv; <a name="l00258"></a>00258 <a name="l00259"></a>00259 <span class="comment">/* Bash 2.0 gives us an environment variable containing flags</span> <a name="l00260"></a>00260 <span class="comment"> indicating ARGV elements that should not be considered arguments. */</span> <a name="l00261"></a>00261 <a name="l00262"></a>00262 <span class="preprocessor"># ifdef USE_NONOPTION_FLAGS</span> <a name="l00263"></a>00263 <span class="preprocessor"></span><span class="comment">/* Defined in getopt_init.c */</span> <a name="l00264"></a>00264 <span class="keyword">extern</span> <span class="keywordtype">char</span> *__getopt_nonoption_flags; <a name="l00265"></a>00265 <a name="l00266"></a>00266 <span class="keyword">static</span> <span class="keywordtype">int</span> nonoption_flags_max_len; <a name="l00267"></a>00267 <span class="keyword">static</span> <span class="keywordtype">int</span> nonoption_flags_len; <a name="l00268"></a>00268 <span class="preprocessor"># endif</span> <a name="l00269"></a>00269 <span class="preprocessor"></span> <a name="l00270"></a>00270 <span class="preprocessor"># ifdef USE_NONOPTION_FLAGS</span> <a name="l00271"></a>00271 <span class="preprocessor"></span><span class="preprocessor"># define SWAP_FLAGS(ch1, ch2) \</span> <a name="l00272"></a>00272 <span class="preprocessor"> if (nonoption_flags_len > 0) \</span> <a name="l00273"></a>00273 <span class="preprocessor"> { \</span> <a name="l00274"></a>00274 <span class="preprocessor"> char __tmp = __getopt_nonoption_flags[ch1]; \</span> <a name="l00275"></a>00275 <span class="preprocessor"> __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \</span> <a name="l00276"></a>00276 <span class="preprocessor"> __getopt_nonoption_flags[ch2] = __tmp; \</span> <a name="l00277"></a>00277 <span class="preprocessor"> }</span> <a name="l00278"></a>00278 <span class="preprocessor"></span><span class="preprocessor"># else</span> <a name="l00279"></a>00279 <span class="preprocessor"></span><span class="preprocessor"># define SWAP_FLAGS(ch1, ch2)</span> <a name="l00280"></a>00280 <span class="preprocessor"></span><span class="preprocessor"># endif</span> <a name="l00281"></a>00281 <span class="preprocessor"></span><span class="preprocessor">#else </span><span class="comment">/* !_LIBC */</span> <a name="l00282"></a>00282 <span class="preprocessor"># define SWAP_FLAGS(ch1, ch2)</span> <a name="l00283"></a>00283 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* _LIBC */</span> <a name="l00284"></a>00284 <a name="l00285"></a>00285 <span class="comment">/* Exchange two adjacent subsequences of ARGV.</span> <a name="l00286"></a>00286 <span class="comment"> One subsequence is elements [first_nonopt,last_nonopt)</span> <a name="l00287"></a>00287 <span class="comment"> which contains all the non-options that have been skipped so far.</span> <a name="l00288"></a>00288 <span class="comment"> The other is elements [last_nonopt,optind), which contains all</span> <a name="l00289"></a>00289 <span class="comment"> the options processed since those non-options were skipped.</span> <a name="l00290"></a>00290 <span class="comment"></span> <a name="l00291"></a>00291 <span class="comment"> `first_nonopt' and `last_nonopt' are relocated so that they describe</span> <a name="l00292"></a>00292 <span class="comment"> the new indices of the non-options in ARGV after they are moved. */</span> <a name="l00293"></a>00293 <a name="l00294"></a>00294 <span class="preprocessor">#if defined __STDC__ && __STDC__</span> <a name="l00295"></a>00295 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">void</span> exchange (<span class="keywordtype">char</span> **); <a name="l00296"></a>00296 <span class="preprocessor">#endif</span> <a name="l00297"></a>00297 <span class="preprocessor"></span> <a name="l00298"></a>00298 <span class="keyword">static</span> <span class="keywordtype">void</span> <a name="l00299"></a>00299 exchange (argv) <a name="l00300"></a>00300 char **argv; <a name="l00301"></a>00301 { <a name="l00302"></a>00302 <span class="keywordtype">int</span> bottom = first_nonopt; <a name="l00303"></a>00303 <span class="keywordtype">int</span> middle = last_nonopt; <a name="l00304"></a>00304 <span class="keywordtype">int</span> top = optind; <a name="l00305"></a>00305 <span class="keywordtype">char</span> *tem; <a name="l00306"></a>00306 <a name="l00307"></a>00307 <span class="comment">/* Exchange the shorter segment with the far end of the longer segment.</span> <a name="l00308"></a>00308 <span class="comment"> That puts the shorter segment into the right place.</span> <a name="l00309"></a>00309 <span class="comment"> It leaves the longer segment in the right place overall,</span> <a name="l00310"></a>00310 <span class="comment"> but it consists of two parts that need to be swapped next. */</span> <a name="l00311"></a>00311 <a name="l00312"></a>00312 <span class="preprocessor">#if defined _LIBC && defined USE_NONOPTION_FLAGS</span> <a name="l00313"></a>00313 <span class="preprocessor"></span> <span class="comment">/* First make sure the handling of the `__getopt_nonoption_flags'</span> <a name="l00314"></a>00314 <span class="comment"> string can work normally. Our top argument must be in the range</span> <a name="l00315"></a>00315 <span class="comment"> of the string. */</span> <a name="l00316"></a>00316 <span class="keywordflow">if</span> (nonoption_flags_len > 0 && top >= nonoption_flags_max_len) <a name="l00317"></a>00317 { <a name="l00318"></a>00318 <span class="comment">/* We must extend the array. The user plays games with us and</span> <a name="l00319"></a>00319 <span class="comment"> presents new arguments. */</span> <a name="l00320"></a>00320 <span class="keywordtype">char</span> *new_str = malloc (top + 1); <a name="l00321"></a>00321 <span class="keywordflow">if</span> (new_str == NULL) <a name="l00322"></a>00322 nonoption_flags_len = nonoption_flags_max_len = 0; <a name="l00323"></a>00323 <span class="keywordflow">else</span> <a name="l00324"></a>00324 { <a name="l00325"></a>00325 memset (__mempcpy (new_str, __getopt_nonoption_flags, <a name="l00326"></a>00326 nonoption_flags_max_len), <a name="l00327"></a>00327 <span class="charliteral">'\0'</span>, top + 1 - nonoption_flags_max_len); <a name="l00328"></a>00328 nonoption_flags_max_len = top + 1; <a name="l00329"></a>00329 __getopt_nonoption_flags = new_str; <a name="l00330"></a>00330 } <a name="l00331"></a>00331 } <a name="l00332"></a>00332 <span class="preprocessor">#endif</span> <a name="l00333"></a>00333 <span class="preprocessor"></span> <a name="l00334"></a>00334 <span class="keywordflow">while</span> (top > middle && middle > bottom) <a name="l00335"></a>00335 { <a name="l00336"></a>00336 <span class="keywordflow">if</span> (top - middle > middle - bottom) <a name="l00337"></a>00337 { <a name="l00338"></a>00338 <span class="comment">/* Bottom segment is the short one. */</span> <a name="l00339"></a>00339 <span class="keywordtype">int</span> len = middle - bottom; <a name="l00340"></a>00340 <span class="keyword">register</span> <span class="keywordtype">int</span> i; <a name="l00341"></a>00341 <a name="l00342"></a>00342 <span class="comment">/* Swap it with the top part of the top segment. */</span> <a name="l00343"></a>00343 <span class="keywordflow">for</span> (i = 0; i < len; i++) <a name="l00344"></a>00344 { <a name="l00345"></a>00345 tem = argv[bottom + i]; <a name="l00346"></a>00346 argv[bottom + i] = argv[top - (middle - bottom) + i]; <a name="l00347"></a>00347 argv[top - (middle - bottom) + i] = tem; <a name="l00348"></a>00348 SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); <a name="l00349"></a>00349 } <a name="l00350"></a>00350 <span class="comment">/* Exclude the moved bottom segment from further swapping. */</span> <a name="l00351"></a>00351 top -= len; <a name="l00352"></a>00352 } <a name="l00353"></a>00353 <span class="keywordflow">else</span> <a name="l00354"></a>00354 { <a name="l00355"></a>00355 <span class="comment">/* Top segment is the short one. */</span> <a name="l00356"></a>00356 <span class="keywordtype">int</span> len = top - middle; <a name="l00357"></a>00357 <span class="keyword">register</span> <span class="keywordtype">int</span> i; <a name="l00358"></a>00358 <a name="l00359"></a>00359 <span class="comment">/* Swap it with the bottom part of the bottom segment. */</span> <a name="l00360"></a>00360 <span class="keywordflow">for</span> (i = 0; i < len; i++) <a name="l00361"></a>00361 { <a name="l00362"></a>00362 tem = argv[bottom + i]; <a name="l00363"></a>00363 argv[bottom + i] = argv[middle + i]; <a name="l00364"></a>00364 argv[middle + i] = tem; <a name="l00365"></a>00365 SWAP_FLAGS (bottom + i, middle + i); <a name="l00366"></a>00366 } <a name="l00367"></a>00367 <span class="comment">/* Exclude the moved top segment from further swapping. */</span> <a name="l00368"></a>00368 bottom += len; <a name="l00369"></a>00369 } <a name="l00370"></a>00370 } <a name="l00371"></a>00371 <a name="l00372"></a>00372 <span class="comment">/* Update records for the slots the non-options now occupy. */</span> <a name="l00373"></a>00373 <a name="l00374"></a>00374 first_nonopt += (optind - last_nonopt); <a name="l00375"></a>00375 last_nonopt = optind; <a name="l00376"></a>00376 } <a name="l00377"></a>00377 <a name="l00378"></a>00378 <span class="comment">/* Initialize the internal data when the first call is made. */</span> <a name="l00379"></a>00379 <a name="l00380"></a>00380 <span class="preprocessor">#if defined __STDC__ && __STDC__</span> <a name="l00381"></a>00381 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *_getopt_initialize (<span class="keywordtype">int</span>, <span class="keywordtype">char</span> *<span class="keyword">const</span> *, <span class="keyword">const</span> <span class="keywordtype">char</span> *); <a name="l00382"></a>00382 <span class="preprocessor">#endif</span> <a name="l00383"></a>00383 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> * <a name="l00384"></a>00384 _getopt_initialize (argc, argv, optstring) <a name="l00385"></a>00385 int argc; <a name="l00386"></a>00386 <span class="keywordtype">char</span> *const *argv; <a name="l00387"></a>00387 const <span class="keywordtype">char</span> *optstring; <a name="l00388"></a>00388 { <a name="l00389"></a>00389 <span class="comment">/* Start processing options with ARGV-element 1 (since ARGV-element 0</span> <a name="l00390"></a>00390 <span class="comment"> is the program name); the sequence of previously skipped</span> <a name="l00391"></a>00391 <span class="comment"> non-option ARGV-elements is empty. */</span> <a name="l00392"></a>00392 <a name="l00393"></a>00393 first_nonopt = last_nonopt = optind; <a name="l00394"></a>00394 <a name="l00395"></a>00395 nextchar = NULL; <a name="l00396"></a>00396 <a name="l00397"></a>00397 posixly_correct = getenv (<span class="stringliteral">"POSIXLY_CORRECT"</span>); <a name="l00398"></a>00398 <a name="l00399"></a>00399 <span class="comment">/* Determine how to handle the ordering of options and nonoptions. */</span> <a name="l00400"></a>00400 <a name="l00401"></a>00401 <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">'-'</span>) <a name="l00402"></a>00402 { <a name="l00403"></a>00403 ordering = RETURN_IN_ORDER; <a name="l00404"></a>00404 ++optstring; <a name="l00405"></a>00405 } <a name="l00406"></a>00406 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">'+'</span>) <a name="l00407"></a>00407 { <a name="l00408"></a>00408 ordering = REQUIRE_ORDER; <a name="l00409"></a>00409 ++optstring; <a name="l00410"></a>00410 } <a name="l00411"></a>00411 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (posixly_correct != NULL) <a name="l00412"></a>00412 ordering = REQUIRE_ORDER; <a name="l00413"></a>00413 <span class="keywordflow">else</span> <a name="l00414"></a>00414 ordering = PERMUTE; <a name="l00415"></a>00415 <a name="l00416"></a>00416 <span class="preprocessor">#if defined _LIBC && defined USE_NONOPTION_FLAGS</span> <a name="l00417"></a>00417 <span class="preprocessor"></span> <span class="keywordflow">if</span> (posixly_correct == NULL <a name="l00418"></a>00418 && argc == __libc_argc && argv == __libc_argv) <a name="l00419"></a>00419 { <a name="l00420"></a>00420 <span class="keywordflow">if</span> (nonoption_flags_max_len == 0) <a name="l00421"></a>00421 { <a name="l00422"></a>00422 <span class="keywordflow">if</span> (__getopt_nonoption_flags == NULL <a name="l00423"></a>00423 || __getopt_nonoption_flags[0] == <span class="charliteral">'\0'</span>) <a name="l00424"></a>00424 nonoption_flags_max_len = -1; <a name="l00425"></a>00425 <span class="keywordflow">else</span> <a name="l00426"></a>00426 { <a name="l00427"></a>00427 <span class="keyword">const</span> <span class="keywordtype">char</span> *orig_str = __getopt_nonoption_flags; <a name="l00428"></a>00428 <span class="keywordtype">int</span> len = nonoption_flags_max_len = strlen (orig_str); <a name="l00429"></a>00429 <span class="keywordflow">if</span> (nonoption_flags_max_len < argc) <a name="l00430"></a>00430 nonoption_flags_max_len = argc; <a name="l00431"></a>00431 __getopt_nonoption_flags = <a name="l00432"></a>00432 (<span class="keywordtype">char</span> *) malloc (nonoption_flags_max_len); <a name="l00433"></a>00433 <span class="keywordflow">if</span> (__getopt_nonoption_flags == NULL) <a name="l00434"></a>00434 nonoption_flags_max_len = -1; <a name="l00435"></a>00435 <span class="keywordflow">else</span> <a name="l00436"></a>00436 memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), <a name="l00437"></a>00437 <span class="charliteral">'\0'</span>, nonoption_flags_max_len - len); <a name="l00438"></a>00438 } <a name="l00439"></a>00439 } <a name="l00440"></a>00440 nonoption_flags_len = nonoption_flags_max_len; <a name="l00441"></a>00441 } <a name="l00442"></a>00442 <span class="keywordflow">else</span> <a name="l00443"></a>00443 nonoption_flags_len = 0; <a name="l00444"></a>00444 <span class="preprocessor">#endif</span> <a name="l00445"></a>00445 <span class="preprocessor"></span> <a name="l00446"></a>00446 <span class="keywordflow">return</span> optstring; <a name="l00447"></a>00447 } <a name="l00448"></a>00448 <a name="l00449"></a>00449 <span class="comment">/* Scan elements of ARGV (whose length is ARGC) for option characters</span> <a name="l00450"></a>00450 <span class="comment"> given in OPTSTRING.</span> <a name="l00451"></a>00451 <span class="comment"></span> <a name="l00452"></a>00452 <span class="comment"> If an element of ARGV starts with '-', and is not exactly "-" or "--",</span> <a name="l00453"></a>00453 <span class="comment"> then it is an option element. The characters of this element</span> <a name="l00454"></a>00454 <span class="comment"> (aside from the initial '-') are option characters. If `getopt'</span> <a name="l00455"></a>00455 <span class="comment"> is called repeatedly, it returns successively each of the option characters</span> <a name="l00456"></a>00456 <span class="comment"> from each of the option elements.</span> <a name="l00457"></a>00457 <span class="comment"></span> <a name="l00458"></a>00458 <span class="comment"> If `getopt' finds another option character, it returns that character,</span> <a name="l00459"></a>00459 <span class="comment"> updating `optind' and `nextchar' so that the next call to `getopt' can</span> <a name="l00460"></a>00460 <span class="comment"> resume the scan with the following option character or ARGV-element.</span> <a name="l00461"></a>00461 <span class="comment"></span> <a name="l00462"></a>00462 <span class="comment"> If there are no more option characters, `getopt' returns -1.</span> <a name="l00463"></a>00463 <span class="comment"> Then `optind' is the index in ARGV of the first ARGV-element</span> <a name="l00464"></a>00464 <span class="comment"> that is not an option. (The ARGV-elements have been permuted</span> <a name="l00465"></a>00465 <span class="comment"> so that those that are not options now come last.)</span> <a name="l00466"></a>00466 <span class="comment"></span> <a name="l00467"></a>00467 <span class="comment"> OPTSTRING is a string containing the legitimate option characters.</span> <a name="l00468"></a>00468 <span class="comment"> If an option character is seen that is not listed in OPTSTRING,</span> <a name="l00469"></a>00469 <span class="comment"> return '?' after printing an error message. If you set `opterr' to</span> <a name="l00470"></a>00470 <span class="comment"> zero, the error message is suppressed but we still return '?'.</span> <a name="l00471"></a>00471 <span class="comment"></span> <a name="l00472"></a>00472 <span class="comment"> If a char in OPTSTRING is followed by a colon, that means it wants an arg,</span> <a name="l00473"></a>00473 <span class="comment"> so the following text in the same ARGV-element, or the text of the following</span> <a name="l00474"></a>00474 <span class="comment"> ARGV-element, is returned in `optarg'. Two colons mean an option that</span> <a name="l00475"></a>00475 <span class="comment"> wants an optional arg; if there is text in the current ARGV-element,</span> <a name="l00476"></a>00476 <span class="comment"> it is returned in `optarg', otherwise `optarg' is set to zero.</span> <a name="l00477"></a>00477 <span class="comment"></span> <a name="l00478"></a>00478 <span class="comment"> If OPTSTRING starts with `-' or `+', it requests different methods of</span> <a name="l00479"></a>00479 <span class="comment"> handling the non-option ARGV-elements.</span> <a name="l00480"></a>00480 <span class="comment"> See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.</span> <a name="l00481"></a>00481 <span class="comment"></span> <a name="l00482"></a>00482 <span class="comment"> Long-named options begin with `--' instead of `-'.</span> <a name="l00483"></a>00483 <span class="comment"> Their names may be abbreviated as long as the abbreviation is unique</span> <a name="l00484"></a>00484 <span class="comment"> or is an exact match for some defined option. If they have an</span> <a name="l00485"></a>00485 <span class="comment"> argument, it follows the option name in the same ARGV-element, separated</span> <a name="l00486"></a>00486 <span class="comment"> from the option name by a `=', or else the in next ARGV-element.</span> <a name="l00487"></a>00487 <span class="comment"> When `getopt' finds a long-named option, it returns 0 if that option's</span> <a name="l00488"></a>00488 <span class="comment"> `flag' field is nonzero, the value of the option's `val' field</span> <a name="l00489"></a>00489 <span class="comment"> if the `flag' field is zero.</span> <a name="l00490"></a>00490 <span class="comment"></span> <a name="l00491"></a>00491 <span class="comment"> The elements of ARGV aren't really const, because we permute them.</span> <a name="l00492"></a>00492 <span class="comment"> But we pretend they're const in the prototype to be compatible</span> <a name="l00493"></a>00493 <span class="comment"> with other systems.</span> <a name="l00494"></a>00494 <span class="comment"></span> <a name="l00495"></a>00495 <span class="comment"> LONGOPTS is a vector of `struct option' terminated by an</span> <a name="l00496"></a>00496 <span class="comment"> element containing a name which is zero.</span> <a name="l00497"></a>00497 <span class="comment"></span> <a name="l00498"></a>00498 <span class="comment"> LONGIND returns the index in LONGOPT of the long-named option found.</span> <a name="l00499"></a>00499 <span class="comment"> It is only valid when a long-named option has been found by the most</span> <a name="l00500"></a>00500 <span class="comment"> recent call.</span> <a name="l00501"></a>00501 <span class="comment"></span> <a name="l00502"></a>00502 <span class="comment"> If LONG_ONLY is nonzero, '-' as well as '--' can introduce</span> <a name="l00503"></a>00503 <span class="comment"> long-named options. */</span> <a name="l00504"></a>00504 <a name="l00505"></a>00505 <span class="keywordtype">int</span> <a name="l00506"></a>00506 _getopt_internal (argc, argv, optstring, longopts, longind, long_only) <a name="l00507"></a>00507 int argc; <a name="l00508"></a>00508 <span class="keywordtype">char</span> *const *argv; <a name="l00509"></a>00509 const <span class="keywordtype">char</span> *optstring; <a name="l00510"></a>00510 const struct <a class="code" href="structoption.html">option</a> *longopts; <a name="l00511"></a>00511 <span class="keywordtype">int</span> *longind; <a name="l00512"></a>00512 <span class="keywordtype">int</span> long_only; <a name="l00513"></a>00513 { <a name="l00514"></a>00514 <span class="keywordtype">int</span> print_errors = opterr; <a name="l00515"></a>00515 <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">':'</span>) <a name="l00516"></a>00516 print_errors = 0; <a name="l00517"></a>00517 <a name="l00518"></a>00518 <span class="keywordflow">if</span> (argc < 1) <a name="l00519"></a>00519 <span class="keywordflow">return</span> -1; <a name="l00520"></a>00520 <a name="l00521"></a>00521 optarg = NULL; <a name="l00522"></a>00522 <a name="l00523"></a>00523 <span class="keywordflow">if</span> (optind == 0 || !__getopt_initialized) <a name="l00524"></a>00524 { <a name="l00525"></a>00525 <span class="keywordflow">if</span> (optind == 0) <a name="l00526"></a>00526 optind = 1; <span class="comment">/* Don't scan ARGV[0], the program name. */</span> <a name="l00527"></a>00527 optstring = _getopt_initialize (argc, argv, optstring); <a name="l00528"></a>00528 __getopt_initialized = 1; <a name="l00529"></a>00529 } <a name="l00530"></a>00530 <a name="l00531"></a>00531 <span class="comment">/* Test whether ARGV[optind] points to a non-option argument.</span> <a name="l00532"></a>00532 <span class="comment"> Either it does not have option syntax, or there is an environment flag</span> <a name="l00533"></a>00533 <span class="comment"> from the shell indicating it is not an option. The later information</span> <a name="l00534"></a>00534 <span class="comment"> is only used when the used in the GNU libc. */</span> <a name="l00535"></a>00535 <span class="preprocessor">#if defined _LIBC && defined USE_NONOPTION_FLAGS</span> <a name="l00536"></a>00536 <span class="preprocessor"></span><span class="preprocessor"># define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \</span> <a name="l00537"></a>00537 <span class="preprocessor"> || (optind < nonoption_flags_len \</span> <a name="l00538"></a>00538 <span class="preprocessor"> && __getopt_nonoption_flags[optind] == '1'))</span> <a name="l00539"></a>00539 <span class="preprocessor"></span><span class="preprocessor">#else</span> <a name="l00540"></a>00540 <span class="preprocessor"></span><span class="preprocessor"># define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')</span> <a name="l00541"></a>00541 <span class="preprocessor"></span><span class="preprocessor">#endif</span> <a name="l00542"></a>00542 <span class="preprocessor"></span> <a name="l00543"></a>00543 <span class="keywordflow">if</span> (nextchar == NULL || *nextchar == <span class="charliteral">'\0'</span>) <a name="l00544"></a>00544 { <a name="l00545"></a>00545 <span class="comment">/* Advance to the next ARGV-element. */</span> <a name="l00546"></a>00546 <a name="l00547"></a>00547 <span class="comment">/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been</span> <a name="l00548"></a>00548 <span class="comment"> moved back by the user (who may also have changed the arguments). */</span> <a name="l00549"></a>00549 <span class="keywordflow">if</span> (last_nonopt > optind) <a name="l00550"></a>00550 last_nonopt = optind; <a name="l00551"></a>00551 <span class="keywordflow">if</span> (first_nonopt > optind) <a name="l00552"></a>00552 first_nonopt = optind; <a name="l00553"></a>00553 <a name="l00554"></a>00554 <span class="keywordflow">if</span> (ordering == PERMUTE) <a name="l00555"></a>00555 { <a name="l00556"></a>00556 <span class="comment">/* If we have just processed some options following some non-options,</span> <a name="l00557"></a>00557 <span class="comment"> exchange them so that the options come first. */</span> <a name="l00558"></a>00558 <a name="l00559"></a>00559 <span class="keywordflow">if</span> (first_nonopt != last_nonopt && last_nonopt != optind) <a name="l00560"></a>00560 exchange ((<span class="keywordtype">char</span> **) argv); <a name="l00561"></a>00561 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (last_nonopt != optind) <a name="l00562"></a>00562 first_nonopt = optind; <a name="l00563"></a>00563 <a name="l00564"></a>00564 <span class="comment">/* Skip any additional non-options</span> <a name="l00565"></a>00565 <span class="comment"> and extend the range of non-options previously skipped. */</span> <a name="l00566"></a>00566 <a name="l00567"></a>00567 <span class="keywordflow">while</span> (optind < argc && NONOPTION_P) <a name="l00568"></a>00568 optind++; <a name="l00569"></a>00569 last_nonopt = optind; <a name="l00570"></a>00570 } <a name="l00571"></a>00571 <a name="l00572"></a>00572 <span class="comment">/* The special ARGV-element `--' means premature end of options.</span> <a name="l00573"></a>00573 <span class="comment"> Skip it like a null option,</span> <a name="l00574"></a>00574 <span class="comment"> then exchange with previous non-options as if it were an option,</span> <a name="l00575"></a>00575 <span class="comment"> then skip everything else like a non-option. */</span> <a name="l00576"></a>00576 <a name="l00577"></a>00577 <span class="keywordflow">if</span> (optind != argc && !strcmp (argv[optind], <span class="stringliteral">"--"</span>)) <a name="l00578"></a>00578 { <a name="l00579"></a>00579 optind++; <a name="l00580"></a>00580 <a name="l00581"></a>00581 <span class="keywordflow">if</span> (first_nonopt != last_nonopt && last_nonopt != optind) <a name="l00582"></a>00582 exchange ((<span class="keywordtype">char</span> **) argv); <a name="l00583"></a>00583 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (first_nonopt == last_nonopt) <a name="l00584"></a>00584 first_nonopt = optind; <a name="l00585"></a>00585 last_nonopt = argc; <a name="l00586"></a>00586 <a name="l00587"></a>00587 optind = argc; <a name="l00588"></a>00588 } <a name="l00589"></a>00589 <a name="l00590"></a>00590 <span class="comment">/* If we have done all the ARGV-elements, stop the scan</span> <a name="l00591"></a>00591 <span class="comment"> and back over any non-options that we skipped and permuted. */</span> <a name="l00592"></a>00592 <a name="l00593"></a>00593 <span class="keywordflow">if</span> (optind == argc) <a name="l00594"></a>00594 { <a name="l00595"></a>00595 <span class="comment">/* Set the next-arg-index to point at the non-options</span> <a name="l00596"></a>00596 <span class="comment"> that we previously skipped, so the caller will digest them. */</span> <a name="l00597"></a>00597 <span class="keywordflow">if</span> (first_nonopt != last_nonopt) <a name="l00598"></a>00598 optind = first_nonopt; <a name="l00599"></a>00599 <span class="keywordflow">return</span> -1; <a name="l00600"></a>00600 } <a name="l00601"></a>00601 <a name="l00602"></a>00602 <span class="comment">/* If we have come to a non-option and did not permute it,</span> <a name="l00603"></a>00603 <span class="comment"> either stop the scan or describe it to the caller and pass it by. */</span> <a name="l00604"></a>00604 <a name="l00605"></a>00605 <span class="keywordflow">if</span> (NONOPTION_P) <a name="l00606"></a>00606 { <a name="l00607"></a>00607 <span class="keywordflow">if</span> (ordering == REQUIRE_ORDER) <a name="l00608"></a>00608 <span class="keywordflow">return</span> -1; <a name="l00609"></a>00609 optarg = argv[optind++]; <a name="l00610"></a>00610 <span class="keywordflow">return</span> 1; <a name="l00611"></a>00611 } <a name="l00612"></a>00612 <a name="l00613"></a>00613 <span class="comment">/* We have found another option-ARGV-element.</span> <a name="l00614"></a>00614 <span class="comment"> Skip the initial punctuation. */</span> <a name="l00615"></a>00615 <a name="l00616"></a>00616 nextchar = (argv[optind] + 1 <a name="l00617"></a>00617 + (longopts != NULL && argv[optind][1] == <span class="charliteral">'-'</span>)); <a name="l00618"></a>00618 } <a name="l00619"></a>00619 <a name="l00620"></a>00620 <span class="comment">/* Decode the current option-ARGV-element. */</span> <a name="l00621"></a>00621 <a name="l00622"></a>00622 <span class="comment">/* Check whether the ARGV-element is a long option.</span> <a name="l00623"></a>00623 <span class="comment"></span> <a name="l00624"></a>00624 <span class="comment"> If long_only and the ARGV-element has the form "-f", where f is</span> <a name="l00625"></a>00625 <span class="comment"> a valid short option, don't consider it an abbreviated form of</span> <a name="l00626"></a>00626 <span class="comment"> a long option that starts with f. Otherwise there would be no</span> <a name="l00627"></a>00627 <span class="comment"> way to give the -f short option.</span> <a name="l00628"></a>00628 <span class="comment"></span> <a name="l00629"></a>00629 <span class="comment"> On the other hand, if there's a long option "fubar" and</span> <a name="l00630"></a>00630 <span class="comment"> the ARGV-element is "-fu", do consider that an abbreviation of</span> <a name="l00631"></a>00631 <span class="comment"> the long option, just like "--fu", and not "-f" with arg "u".</span> <a name="l00632"></a>00632 <span class="comment"></span> <a name="l00633"></a>00633 <span class="comment"> This distinction seems to be the most useful approach. */</span> <a name="l00634"></a>00634 <a name="l00635"></a>00635 <span class="keywordflow">if</span> (longopts != NULL <a name="l00636"></a>00636 && (argv[optind][1] == <span class="charliteral">'-'</span> <a name="l00637"></a>00637 || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) <a name="l00638"></a>00638 { <a name="l00639"></a>00639 <span class="keywordtype">char</span> *nameend; <a name="l00640"></a>00640 <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structoption.html">option</a> *p; <a name="l00641"></a>00641 <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structoption.html">option</a> *pfound = NULL; <a name="l00642"></a>00642 <span class="keywordtype">int</span> exact = 0; <a name="l00643"></a>00643 <span class="keywordtype">int</span> ambig = 0; <a name="l00644"></a>00644 <span class="keywordtype">int</span> indfound = -1; <a name="l00645"></a>00645 <span class="keywordtype">int</span> option_index; <a name="l00646"></a>00646 <a name="l00647"></a>00647 <span class="keywordflow">for</span> (nameend = nextchar; *nameend && *nameend != <span class="charliteral">'='</span>; nameend++) <a name="l00648"></a>00648 <span class="comment">/* Do nothing. */</span> ; <a name="l00649"></a>00649 <a name="l00650"></a>00650 <span class="comment">/* Test all long options for either exact match</span> <a name="l00651"></a>00651 <span class="comment"> or abbreviated matches. */</span> <a name="l00652"></a>00652 <span class="keywordflow">for</span> (p = longopts, option_index = 0; p-><a class="code" href="structoption.html#92c850a23c7828c1dba453bf8d15e1f0">name</a>; p++, option_index++) <a name="l00653"></a>00653 <span class="keywordflow">if</span> (!strncmp (p-><a class="code" href="structoption.html#92c850a23c7828c1dba453bf8d15e1f0">name</a>, nextchar, nameend - nextchar)) <a name="l00654"></a>00654 { <a name="l00655"></a>00655 if ((<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) (nameend - nextchar) <a name="l00656"></a>00656 == (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) strlen (p-><a class="code" href="structoption.html#92c850a23c7828c1dba453bf8d15e1f0">name</a>)) <a name="l00657"></a>00657 { <a name="l00658"></a>00658 <span class="comment">/* Exact match found. */</span> <a name="l00659"></a>00659 pfound = p; <a name="l00660"></a>00660 indfound = option_index; <a name="l00661"></a>00661 exact = 1; <a name="l00662"></a>00662 <span class="keywordflow">break</span>; <a name="l00663"></a>00663 } <a name="l00664"></a>00664 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pfound == NULL) <a name="l00665"></a>00665 { <a name="l00666"></a>00666 <span class="comment">/* First nonexact match found. */</span> <a name="l00667"></a>00667 pfound = p; <a name="l00668"></a>00668 indfound = option_index; <a name="l00669"></a>00669 } <a name="l00670"></a>00670 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (long_only <a name="l00671"></a>00671 || pfound-><a class="code" href="structoption.html#90d7ee9a51eea5c002682dbd0af149e4">has_arg</a> != p-><a class="code" href="structoption.html#90d7ee9a51eea5c002682dbd0af149e4">has_arg</a> <a name="l00672"></a>00672 || pfound-><a class="code" href="structoption.html#b366eea5fe7be25c1928328ba715e353">flag</a> != p-><a class="code" href="structoption.html#b366eea5fe7be25c1928328ba715e353">flag</a> <a name="l00673"></a>00673 || pfound-><a class="code" href="structoption.html#13bd155ec3b405d29c41ab8d0793be11">val</a> != p-><a class="code" href="structoption.html#13bd155ec3b405d29c41ab8d0793be11">val</a>) <a name="l00674"></a>00674 <span class="comment">/* Second or later nonexact match found. */</span> <a name="l00675"></a>00675 ambig = 1; <a name="l00676"></a>00676 } <a name="l00677"></a>00677 <a name="l00678"></a>00678 <span class="keywordflow">if</span> (ambig && !exact) <a name="l00679"></a>00679 { <a name="l00680"></a>00680 <span class="keywordflow">if</span> (print_errors) <a name="l00681"></a>00681 fprintf (stderr, _(<span class="stringliteral">"%s: option `%s' is ambiguous\n"</span>), <a name="l00682"></a>00682 argv[0], argv[optind]); <a name="l00683"></a>00683 nextchar += strlen (nextchar); <a name="l00684"></a>00684 optind++; <a name="l00685"></a>00685 optopt = 0; <a name="l00686"></a>00686 <span class="keywordflow">return</span> <span class="charliteral">'?'</span>; <a name="l00687"></a>00687 } <a name="l00688"></a>00688 <a name="l00689"></a>00689 <span class="keywordflow">if</span> (pfound != NULL) <a name="l00690"></a>00690 { <a name="l00691"></a>00691 option_index = indfound; <a name="l00692"></a>00692 optind++; <a name="l00693"></a>00693 <span class="keywordflow">if</span> (*nameend) <a name="l00694"></a>00694 { <a name="l00695"></a>00695 <span class="comment">/* Don't test has_arg with >, because some C compilers don't</span> <a name="l00696"></a>00696 <span class="comment"> allow it to be used on enums. */</span> <a name="l00697"></a>00697 <span class="keywordflow">if</span> (pfound-><a class="code" href="structoption.html#90d7ee9a51eea5c002682dbd0af149e4">has_arg</a>) <a name="l00698"></a>00698 optarg = nameend + 1; <a name="l00699"></a>00699 <span class="keywordflow">else</span> <a name="l00700"></a>00700 { <a name="l00701"></a>00701 <span class="keywordflow">if</span> (print_errors) <a name="l00702"></a>00702 { <a name="l00703"></a>00703 <span class="keywordflow">if</span> (argv[optind - 1][1] == <span class="charliteral">'-'</span>) <a name="l00704"></a>00704 <span class="comment">/* --option */</span> <a name="l00705"></a>00705 fprintf (stderr, <a name="l00706"></a>00706 _(<span class="stringliteral">"%s: option `--%s' doesn't allow an argument\n"</span>), <a name="l00707"></a>00707 argv[0], pfound-><a class="code" href="structoption.html#92c850a23c7828c1dba453bf8d15e1f0">name</a>); <a name="l00708"></a>00708 <span class="keywordflow">else</span> <a name="l00709"></a>00709 <span class="comment">/* +option or -option */</span> <a name="l00710"></a>00710 fprintf (stderr, <a name="l00711"></a>00711 _(<span class="stringliteral">"%s: option `%c%s' doesn't allow an argument\n"</span>), <a name="l00712"></a>00712 argv[0], argv[optind - 1][0], pfound-><a class="code" href="structoption.html#92c850a23c7828c1dba453bf8d15e1f0">name</a>); <a name="l00713"></a>00713 } <a name="l00714"></a>00714 <a name="l00715"></a>00715 nextchar += strlen (nextchar); <a name="l00716"></a>00716 <a name="l00717"></a>00717 optopt = pfound-><a class="code" href="structoption.html#13bd155ec3b405d29c41ab8d0793be11">val</a>; <a name="l00718"></a>00718 <span class="keywordflow">return</span> <span class="charliteral">'?'</span>; <a name="l00719"></a>00719 } <a name="l00720"></a>00720 } <a name="l00721"></a>00721 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pfound-><a class="code" href="structoption.html#90d7ee9a51eea5c002682dbd0af149e4">has_arg</a> == 1) <a name="l00722"></a>00722 { <a name="l00723"></a>00723 <span class="keywordflow">if</span> (optind < argc) <a name="l00724"></a>00724 optarg = argv[optind++]; <a name="l00725"></a>00725 <span class="keywordflow">else</span> <a name="l00726"></a>00726 { <a name="l00727"></a>00727 <span class="keywordflow">if</span> (print_errors) <a name="l00728"></a>00728 fprintf (stderr, <a name="l00729"></a>00729 _(<span class="stringliteral">"%s: option `%s' requires an argument\n"</span>), <a name="l00730"></a>00730 argv[0], argv[optind - 1]); <a name="l00731"></a>00731 nextchar += strlen (nextchar); <a name="l00732"></a>00732 optopt = pfound-><a class="code" href="structoption.html#13bd155ec3b405d29c41ab8d0793be11">val</a>; <a name="l00733"></a>00733 <span class="keywordflow">return</span> optstring[0] == <span class="charliteral">':'</span> ? <span class="charliteral">':'</span> : <span class="charliteral">'?'</span>; <a name="l00734"></a>00734 } <a name="l00735"></a>00735 } <a name="l00736"></a>00736 nextchar += strlen (nextchar); <a name="l00737"></a>00737 <span class="keywordflow">if</span> (longind != NULL) <a name="l00738"></a>00738 *longind = option_index; <a name="l00739"></a>00739 <span class="keywordflow">if</span> (pfound-><a class="code" href="structoption.html#b366eea5fe7be25c1928328ba715e353">flag</a>) <a name="l00740"></a>00740 { <a name="l00741"></a>00741 *(pfound-><a class="code" href="structoption.html#b366eea5fe7be25c1928328ba715e353">flag</a>) = pfound-><a class="code" href="structoption.html#13bd155ec3b405d29c41ab8d0793be11">val</a>; <a name="l00742"></a>00742 <span class="keywordflow">return</span> 0; <a name="l00743"></a>00743 } <a name="l00744"></a>00744 <span class="keywordflow">return</span> pfound-><a class="code" href="structoption.html#13bd155ec3b405d29c41ab8d0793be11">val</a>; <a name="l00745"></a>00745 } <a name="l00746"></a>00746 <a name="l00747"></a>00747 <span class="comment">/* Can't find it as a long option. If this is not getopt_long_only,</span> <a name="l00748"></a>00748 <span class="comment"> or the option starts with '--' or is not a valid short</span> <a name="l00749"></a>00749 <span class="comment"> option, then it's an error.</span> <a name="l00750"></a>00750 <span class="comment"> Otherwise interpret it as a short option. */</span> <a name="l00751"></a>00751 <span class="keywordflow">if</span> (!long_only || argv[optind][1] == <span class="charliteral">'-'</span> <a name="l00752"></a>00752 || my_index (optstring, *nextchar) == NULL) <a name="l00753"></a>00753 { <a name="l00754"></a>00754 <span class="keywordflow">if</span> (print_errors) <a name="l00755"></a>00755 { <a name="l00756"></a>00756 <span class="keywordflow">if</span> (argv[optind][1] == <span class="charliteral">'-'</span>) <a name="l00757"></a>00757 <span class="comment">/* --option */</span> <a name="l00758"></a>00758 fprintf (stderr, _(<span class="stringliteral">"%s: unrecognized option `--%s'\n"</span>), <a name="l00759"></a>00759 argv[0], nextchar); <a name="l00760"></a>00760 <span class="keywordflow">else</span> <a name="l00761"></a>00761 <span class="comment">/* +option or -option */</span> <a name="l00762"></a>00762 fprintf (stderr, _(<span class="stringliteral">"%s: unrecognized option `%c%s'\n"</span>), <a name="l00763"></a>00763 argv[0], argv[optind][0], nextchar); <a name="l00764"></a>00764 } <a name="l00765"></a>00765 nextchar = (<span class="keywordtype">char</span> *) <span class="stringliteral">""</span>; <a name="l00766"></a>00766 optind++; <a name="l00767"></a>00767 optopt = 0; <a name="l00768"></a>00768 <span class="keywordflow">return</span> <span class="charliteral">'?'</span>; <a name="l00769"></a>00769 } <a name="l00770"></a>00770 } <a name="l00771"></a>00771 <a name="l00772"></a>00772 <span class="comment">/* Look at and handle the next short option-character. */</span> <a name="l00773"></a>00773 <a name="l00774"></a>00774 { <a name="l00775"></a>00775 <span class="keywordtype">char</span> c = *nextchar++; <a name="l00776"></a>00776 <span class="keywordtype">char</span> *temp = my_index (optstring, c); <a name="l00777"></a>00777 <a name="l00778"></a>00778 <span class="comment">/* Increment `optind' when we start to process its last character. */</span> <a name="l00779"></a>00779 <span class="keywordflow">if</span> (*nextchar == <span class="charliteral">'\0'</span>) <a name="l00780"></a>00780 ++optind; <a name="l00781"></a>00781 <a name="l00782"></a>00782 <span class="keywordflow">if</span> (temp == NULL || c == <span class="charliteral">':'</span>) <a name="l00783"></a>00783 { <a name="l00784"></a>00784 <span class="keywordflow">if</span> (print_errors) <a name="l00785"></a>00785 { <a name="l00786"></a>00786 <span class="keywordflow">if</span> (posixly_correct) <a name="l00787"></a>00787 <span class="comment">/* 1003.2 specifies the format of this message. */</span> <a name="l00788"></a>00788 fprintf (stderr, _(<span class="stringliteral">"%s: illegal option -- %c\n"</span>), <a name="l00789"></a>00789 argv[0], c); <a name="l00790"></a>00790 <span class="keywordflow">else</span> <a name="l00791"></a>00791 fprintf (stderr, _(<span class="stringliteral">"%s: invalid option -- %c\n"</span>), <a name="l00792"></a>00792 argv[0], c); <a name="l00793"></a>00793 } <a name="l00794"></a>00794 optopt = c; <a name="l00795"></a>00795 <span class="keywordflow">return</span> <span class="charliteral">'?'</span>; <a name="l00796"></a>00796 } <a name="l00797"></a>00797 <span class="comment">/* Convenience. Treat POSIX -W foo same as long option --foo */</span> <a name="l00798"></a>00798 <span class="keywordflow">if</span> (temp[0] == <span class="charliteral">'W'</span> && temp[1] == <span class="charliteral">';'</span>) <a name="l00799"></a>00799 { <a name="l00800"></a>00800 <span class="keywordtype">char</span> *nameend; <a name="l00801"></a>00801 <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structoption.html">option</a> *p; <a name="l00802"></a>00802 <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structoption.html">option</a> *pfound = NULL; <a name="l00803"></a>00803 <span class="keywordtype">int</span> exact = 0; <a name="l00804"></a>00804 <span class="keywordtype">int</span> ambig = 0; <a name="l00805"></a>00805 <span class="keywordtype">int</span> indfound = 0; <a name="l00806"></a>00806 <span class="keywordtype">int</span> option_index; <a name="l00807"></a>00807 <a name="l00808"></a>00808 <span class="comment">/* This is an option that requires an argument. */</span> <a name="l00809"></a>00809 <span class="keywordflow">if</span> (*nextchar != <span class="charliteral">'\0'</span>) <a name="l00810"></a>00810 { <a name="l00811"></a>00811 optarg = nextchar; <a name="l00812"></a>00812 <span class="comment">/* If we end this ARGV-element by taking the rest as an arg,</span> <a name="l00813"></a>00813 <span class="comment"> we must advance to the next element now. */</span> <a name="l00814"></a>00814 optind++; <a name="l00815"></a>00815 } <a name="l00816"></a>00816 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (optind == argc) <a name="l00817"></a>00817 { <a name="l00818"></a>00818 <span class="keywordflow">if</span> (print_errors) <a name="l00819"></a>00819 { <a name="l00820"></a>00820 <span class="comment">/* 1003.2 specifies the format of this message. */</span> <a name="l00821"></a>00821 fprintf (stderr, _(<span class="stringliteral">"%s: option requires an argument -- %c\n"</span>), <a name="l00822"></a>00822 argv[0], c); <a name="l00823"></a>00823 } <a name="l00824"></a>00824 optopt = c; <a name="l00825"></a>00825 <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">':'</span>) <a name="l00826"></a>00826 c = <span class="charliteral">':'</span>; <a name="l00827"></a>00827 <span class="keywordflow">else</span> <a name="l00828"></a>00828 c = <span class="charliteral">'?'</span>; <a name="l00829"></a>00829 <span class="keywordflow">return</span> c; <a name="l00830"></a>00830 } <a name="l00831"></a>00831 <span class="keywordflow">else</span> <a name="l00832"></a>00832 <span class="comment">/* We already incremented `optind' once;</span> <a name="l00833"></a>00833 <span class="comment"> increment it again when taking next ARGV-elt as argument. */</span> <a name="l00834"></a>00834 optarg = argv[optind++]; <a name="l00835"></a>00835 <a name="l00836"></a>00836 <span class="comment">/* optarg is now the argument, see if it's in the</span> <a name="l00837"></a>00837 <span class="comment"> table of longopts. */</span> <a name="l00838"></a>00838 <a name="l00839"></a>00839 <span class="keywordflow">for</span> (nextchar = nameend = optarg; *nameend && *nameend != <span class="charliteral">'='</span>; nameend++) <a name="l00840"></a>00840 <span class="comment">/* Do nothing. */</span> ; <a name="l00841"></a>00841 <a name="l00842"></a>00842 <span class="comment">/* Test all long options for either exact match</span> <a name="l00843"></a>00843 <span class="comment"> or abbreviated matches. */</span> <a name="l00844"></a>00844 <span class="keywordflow">for</span> (p = longopts, option_index = 0; p-><a class="code" href="structoption.html#92c850a23c7828c1dba453bf8d15e1f0">name</a>; p++, option_index++) <a name="l00845"></a>00845 <span class="keywordflow">if</span> (!strncmp (p-><a class="code" href="structoption.html#92c850a23c7828c1dba453bf8d15e1f0">name</a>, nextchar, nameend - nextchar)) <a name="l00846"></a>00846 { <a name="l00847"></a>00847 if ((<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>) (nameend - nextchar) == strlen (p-><a class="code" href="structoption.html#92c850a23c7828c1dba453bf8d15e1f0">name</a>)) <a name="l00848"></a>00848 { <a name="l00849"></a>00849 <span class="comment">/* Exact match found. */</span> <a name="l00850"></a>00850 pfound = p; <a name="l00851"></a>00851 indfound = option_index; <a name="l00852"></a>00852 exact = 1; <a name="l00853"></a>00853 <span class="keywordflow">break</span>; <a name="l00854"></a>00854 } <a name="l00855"></a>00855 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pfound == NULL) <a name="l00856"></a>00856 { <a name="l00857"></a>00857 <span class="comment">/* First nonexact match found. */</span> <a name="l00858"></a>00858 pfound = p; <a name="l00859"></a>00859 indfound = option_index; <a name="l00860"></a>00860 } <a name="l00861"></a>00861 <span class="keywordflow">else</span> <a name="l00862"></a>00862 <span class="comment">/* Second or later nonexact match found. */</span> <a name="l00863"></a>00863 ambig = 1; <a name="l00864"></a>00864 } <a name="l00865"></a>00865 <span class="keywordflow">if</span> (ambig && !exact) <a name="l00866"></a>00866 { <a name="l00867"></a>00867 <span class="keywordflow">if</span> (print_errors) <a name="l00868"></a>00868 fprintf (stderr, _(<span class="stringliteral">"%s: option `-W %s' is ambiguous\n"</span>), <a name="l00869"></a>00869 argv[0], argv[optind]); <a name="l00870"></a>00870 nextchar += strlen (nextchar); <a name="l00871"></a>00871 optind++; <a name="l00872"></a>00872 <span class="keywordflow">return</span> <span class="charliteral">'?'</span>; <a name="l00873"></a>00873 } <a name="l00874"></a>00874 <span class="keywordflow">if</span> (pfound != NULL) <a name="l00875"></a>00875 { <a name="l00876"></a>00876 option_index = indfound; <a name="l00877"></a>00877 <span class="keywordflow">if</span> (*nameend) <a name="l00878"></a>00878 { <a name="l00879"></a>00879 <span class="comment">/* Don't test has_arg with >, because some C compilers don't</span> <a name="l00880"></a>00880 <span class="comment"> allow it to be used on enums. */</span> <a name="l00881"></a>00881 <span class="keywordflow">if</span> (pfound-><a class="code" href="structoption.html#90d7ee9a51eea5c002682dbd0af149e4">has_arg</a>) <a name="l00882"></a>00882 optarg = nameend + 1; <a name="l00883"></a>00883 <span class="keywordflow">else</span> <a name="l00884"></a>00884 { <a name="l00885"></a>00885 <span class="keywordflow">if</span> (print_errors) <a name="l00886"></a>00886 fprintf (stderr, _(<span class="stringliteral">"\</span> <a name="l00887"></a>00887 <span class="stringliteral">%s: option `-W %s' doesn't allow an argument\n"</span>), <a name="l00888"></a>00888 argv[0], pfound-><a class="code" href="structoption.html#92c850a23c7828c1dba453bf8d15e1f0">name</a>); <a name="l00889"></a>00889 <a name="l00890"></a>00890 nextchar += strlen (nextchar); <a name="l00891"></a>00891 <span class="keywordflow">return</span> <span class="charliteral">'?'</span>; <a name="l00892"></a>00892 } <a name="l00893"></a>00893 } <a name="l00894"></a>00894 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pfound-><a class="code" href="structoption.html#90d7ee9a51eea5c002682dbd0af149e4">has_arg</a> == 1) <a name="l00895"></a>00895 { <a name="l00896"></a>00896 <span class="keywordflow">if</span> (optind < argc) <a name="l00897"></a>00897 optarg = argv[optind++]; <a name="l00898"></a>00898 <span class="keywordflow">else</span> <a name="l00899"></a>00899 { <a name="l00900"></a>00900 <span class="keywordflow">if</span> (print_errors) <a name="l00901"></a>00901 fprintf (stderr, <a name="l00902"></a>00902 _(<span class="stringliteral">"%s: option `%s' requires an argument\n"</span>), <a name="l00903"></a>00903 argv[0], argv[optind - 1]); <a name="l00904"></a>00904 nextchar += strlen (nextchar); <a name="l00905"></a>00905 <span class="keywordflow">return</span> optstring[0] == <span class="charliteral">':'</span> ? <span class="charliteral">':'</span> : <span class="charliteral">'?'</span>; <a name="l00906"></a>00906 } <a name="l00907"></a>00907 } <a name="l00908"></a>00908 nextchar += strlen (nextchar); <a name="l00909"></a>00909 <span class="keywordflow">if</span> (longind != NULL) <a name="l00910"></a>00910 *longind = option_index; <a name="l00911"></a>00911 <span class="keywordflow">if</span> (pfound-><a class="code" href="structoption.html#b366eea5fe7be25c1928328ba715e353">flag</a>) <a name="l00912"></a>00912 { <a name="l00913"></a>00913 *(pfound-><a class="code" href="structoption.html#b366eea5fe7be25c1928328ba715e353">flag</a>) = pfound-><a class="code" href="structoption.html#13bd155ec3b405d29c41ab8d0793be11">val</a>; <a name="l00914"></a>00914 <span class="keywordflow">return</span> 0; <a name="l00915"></a>00915 } <a name="l00916"></a>00916 <span class="keywordflow">return</span> pfound-><a class="code" href="structoption.html#13bd155ec3b405d29c41ab8d0793be11">val</a>; <a name="l00917"></a>00917 } <a name="l00918"></a>00918 nextchar = NULL; <a name="l00919"></a>00919 <span class="keywordflow">return</span> <span class="charliteral">'W'</span>; <span class="comment">/* Let the application handle it. */</span> <a name="l00920"></a>00920 } <a name="l00921"></a>00921 <span class="keywordflow">if</span> (temp[1] == <span class="charliteral">':'</span>) <a name="l00922"></a>00922 { <a name="l00923"></a>00923 <span class="keywordflow">if</span> (temp[2] == <span class="charliteral">':'</span>) <a name="l00924"></a>00924 { <a name="l00925"></a>00925 <span class="comment">/* This is an option that accepts an argument optionally. */</span> <a name="l00926"></a>00926 <span class="keywordflow">if</span> (*nextchar != <span class="charliteral">'\0'</span>) <a name="l00927"></a>00927 { <a name="l00928"></a>00928 optarg = nextchar; <a name="l00929"></a>00929 optind++; <a name="l00930"></a>00930 } <a name="l00931"></a>00931 <span class="keywordflow">else</span> <a name="l00932"></a>00932 optarg = NULL; <a name="l00933"></a>00933 nextchar = NULL; <a name="l00934"></a>00934 } <a name="l00935"></a>00935 <span class="keywordflow">else</span> <a name="l00936"></a>00936 { <a name="l00937"></a>00937 <span class="comment">/* This is an option that requires an argument. */</span> <a name="l00938"></a>00938 <span class="keywordflow">if</span> (*nextchar != <span class="charliteral">'\0'</span>) <a name="l00939"></a>00939 { <a name="l00940"></a>00940 optarg = nextchar; <a name="l00941"></a>00941 <span class="comment">/* If we end this ARGV-element by taking the rest as an arg,</span> <a name="l00942"></a>00942 <span class="comment"> we must advance to the next element now. */</span> <a name="l00943"></a>00943 optind++; <a name="l00944"></a>00944 } <a name="l00945"></a>00945 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (optind == argc) <a name="l00946"></a>00946 { <a name="l00947"></a>00947 <span class="keywordflow">if</span> (print_errors) <a name="l00948"></a>00948 { <a name="l00949"></a>00949 <span class="comment">/* 1003.2 specifies the format of this message. */</span> <a name="l00950"></a>00950 fprintf (stderr, <a name="l00951"></a>00951 _(<span class="stringliteral">"%s: option requires an argument -- %c\n"</span>), <a name="l00952"></a>00952 argv[0], c); <a name="l00953"></a>00953 } <a name="l00954"></a>00954 optopt = c; <a name="l00955"></a>00955 <span class="keywordflow">if</span> (optstring[0] == <span class="charliteral">':'</span>) <a name="l00956"></a>00956 c = <span class="charliteral">':'</span>; <a name="l00957"></a>00957 <span class="keywordflow">else</span> <a name="l00958"></a>00958 c = <span class="charliteral">'?'</span>; <a name="l00959"></a>00959 } <a name="l00960"></a>00960 <span class="keywordflow">else</span> <a name="l00961"></a>00961 <span class="comment">/* We already incremented `optind' once;</span> <a name="l00962"></a>00962 <span class="comment"> increment it again when taking next ARGV-elt as argument. */</span> <a name="l00963"></a>00963 optarg = argv[optind++]; <a name="l00964"></a>00964 nextchar = NULL; <a name="l00965"></a>00965 } <a name="l00966"></a>00966 } <a name="l00967"></a>00967 <span class="keywordflow">return</span> c; <a name="l00968"></a>00968 } <a name="l00969"></a>00969 } <a name="l00970"></a>00970 <a name="l00971"></a>00971 <span class="keywordtype">int</span> <a name="l00972"></a>00972 getopt (argc, argv, optstring) <a name="l00973"></a>00973 int argc; <a name="l00974"></a>00974 <span class="keywordtype">char</span> *const *argv; <a name="l00975"></a>00975 const <span class="keywordtype">char</span> *optstring; <a name="l00976"></a>00976 { <a name="l00977"></a>00977 <span class="keywordflow">return</span> _getopt_internal (argc, argv, optstring, <a name="l00978"></a>00978 (<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structoption.html">option</a> *) 0, <a name="l00979"></a>00979 (<span class="keywordtype">int</span> *) 0, <a name="l00980"></a>00980 0); <a name="l00981"></a>00981 } <a name="l00982"></a>00982 <a name="l00983"></a>00983 <span class="preprocessor">#endif </span><span class="comment">/* Not ELIDE_CODE. */</span> <a name="l00984"></a>00984 <a name="l00985"></a>00985 <span class="preprocessor">#ifdef TEST</span> <a name="l00986"></a>00986 <span class="preprocessor"></span> <a name="l00987"></a>00987 <span class="comment">/* Compile with -DTEST to make an executable for use in testing</span> <a name="l00988"></a>00988 <span class="comment"> the above definition of `getopt'. */</span> <a name="l00989"></a>00989 <a name="l00990"></a>00990 <span class="keywordtype">int</span> <a name="l00991"></a>00991 <a class="code" href="ofx2qif_8c.html#0ddf1224851353fc92bfbff6f499fa97">main</a> (argc, argv) <a name="l00992"></a>00992 int argc; <a name="l00993"></a>00993 <span class="keywordtype">char</span> **argv; <a name="l00994"></a>00994 { <a name="l00995"></a>00995 <span class="keywordtype">int</span> c; <a name="l00996"></a>00996 <span class="keywordtype">int</span> digit_optind = 0; <a name="l00997"></a>00997 <a name="l00998"></a>00998 <span class="keywordflow">while</span> (1) <a name="l00999"></a>00999 { <a name="l01000"></a>01000 <span class="keywordtype">int</span> this_option_optind = optind ? optind : 1; <a name="l01001"></a>01001 <a name="l01002"></a>01002 c = getopt (argc, argv, <span class="stringliteral">"abc:d:0123456789"</span>); <a name="l01003"></a>01003 <span class="keywordflow">if</span> (c == -1) <a name="l01004"></a>01004 <span class="keywordflow">break</span>; <a name="l01005"></a>01005 <a name="l01006"></a>01006 <span class="keywordflow">switch</span> (c) <a name="l01007"></a>01007 { <a name="l01008"></a>01008 <span class="keywordflow">case</span> <span class="charliteral">'0'</span>: <a name="l01009"></a>01009 <span class="keywordflow">case</span> <span class="charliteral">'1'</span>: <a name="l01010"></a>01010 <span class="keywordflow">case</span> <span class="charliteral">'2'</span>: <a name="l01011"></a>01011 <span class="keywordflow">case</span> <span class="charliteral">'3'</span>: <a name="l01012"></a>01012 <span class="keywordflow">case</span> <span class="charliteral">'4'</span>: <a name="l01013"></a>01013 <span class="keywordflow">case</span> <span class="charliteral">'5'</span>: <a name="l01014"></a>01014 <span class="keywordflow">case</span> <span class="charliteral">'6'</span>: <a name="l01015"></a>01015 <span class="keywordflow">case</span> <span class="charliteral">'7'</span>: <a name="l01016"></a>01016 <span class="keywordflow">case</span> <span class="charliteral">'8'</span>: <a name="l01017"></a>01017 <span class="keywordflow">case</span> <span class="charliteral">'9'</span>: <a name="l01018"></a>01018 <span class="keywordflow">if</span> (digit_optind != 0 && digit_optind != this_option_optind) <a name="l01019"></a>01019 printf (<span class="stringliteral">"digits occur in two different argv-elements.\n"</span>); <a name="l01020"></a>01020 digit_optind = this_option_optind; <a name="l01021"></a>01021 printf (<span class="stringliteral">"option %c\n"</span>, c); <a name="l01022"></a>01022 <span class="keywordflow">break</span>; <a name="l01023"></a>01023 <a name="l01024"></a>01024 <span class="keywordflow">case</span> <span class="charliteral">'a'</span>: <a name="l01025"></a>01025 printf (<span class="stringliteral">"option a\n"</span>); <a name="l01026"></a>01026 <span class="keywordflow">break</span>; <a name="l01027"></a>01027 <a name="l01028"></a>01028 <span class="keywordflow">case</span> <span class="charliteral">'b'</span>: <a name="l01029"></a>01029 printf (<span class="stringliteral">"option b\n"</span>); <a name="l01030"></a>01030 <span class="keywordflow">break</span>; <a name="l01031"></a>01031 <a name="l01032"></a>01032 <span class="keywordflow">case</span> <span class="charliteral">'c'</span>: <a name="l01033"></a>01033 printf (<span class="stringliteral">"option c with value `%s'\n"</span>, optarg); <a name="l01034"></a>01034 <span class="keywordflow">break</span>; <a name="l01035"></a>01035 <a name="l01036"></a>01036 <span class="keywordflow">case</span> <span class="charliteral">'?'</span>: <a name="l01037"></a>01037 <span class="keywordflow">break</span>; <a name="l01038"></a>01038 <a name="l01039"></a>01039 <span class="keywordflow">default</span>: <a name="l01040"></a>01040 printf (<span class="stringliteral">"?? getopt returned character code 0%o ??\n"</span>, c); <a name="l01041"></a>01041 } <a name="l01042"></a>01042 } <a name="l01043"></a>01043 <a name="l01044"></a>01044 <span class="keywordflow">if</span> (optind < argc) <a name="l01045"></a>01045 { <a name="l01046"></a>01046 printf (<span class="stringliteral">"non-option ARGV-elements: "</span>); <a name="l01047"></a>01047 <span class="keywordflow">while</span> (optind < argc) <a name="l01048"></a>01048 printf (<span class="stringliteral">"%s "</span>, argv[optind++]); <a name="l01049"></a>01049 printf (<span class="stringliteral">"\n"</span>); <a name="l01050"></a>01050 } <a name="l01051"></a>01051 <a name="l01052"></a>01052 exit (0); <a name="l01053"></a>01053 } <a name="l01054"></a>01054 <a name="l01055"></a>01055 <span class="preprocessor">#endif </span><span class="comment">/* TEST */</span> </pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Feb 9 21:21:59 2009 for LibOFX by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.0 </small></address> </body> </html>