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/**
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* \file stack.c
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*
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* This is a special option processing routine that will save the
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* argument to an option in a FIFO queue.
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*
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* @addtogroup autoopts
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* @{
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*/
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/*
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* This file is part of AutoOpts, a companion to AutoGen.
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* AutoOpts is free software.
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* AutoOpts is Copyright (C) 1992-2018 by Bruce Korb - all rights reserved
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*
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* AutoOpts is available under any one of two licenses. The license
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* in use must be one of these two and the choice is under the control
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* of the user of the license.
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*
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* The GNU Lesser General Public License, version 3 or later
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* See the files "COPYING.lgplv3" and "COPYING.gplv3"
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*
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* The Modified Berkeley Software Distribution License
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* See the file "COPYING.mbsd"
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*
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* These files have the following sha256 sums:
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*
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* 8584710e9b04216a394078dc156b781d0b47e1729104d666658aecef8ee32e95 COPYING.gplv3
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* 4379e7444a0e2ce2b12dd6f5a52a27a4d02d39d247901d3285c88cf0d37f477b COPYING.lgplv3
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* 13aa749a5b0a454917a944ed8fffc530b784f5ead522b1aacaf4ec8aa55a6239 COPYING.mbsd
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*/
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#ifdef WITH_LIBREGEX
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# include REGEX_HEADER
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#endif
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/*=export_func optionUnstackArg
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* private:
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*
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* what: Remove option args from a stack
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* arg: + tOptions * + opts + program options descriptor +
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* arg: + tOptDesc * + od + the descriptor for this arg +
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*
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* doc:
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* Invoked for options that are equivalenced to stacked options.
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=*/
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void
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optionUnstackArg(tOptions * opts, tOptDesc * od)
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{
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tArgList * arg_list;
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if (INQUERY_CALL(opts, od))
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return;
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arg_list = (tArgList *)od->optCookie;
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f5fc51 |
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/*
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* IF we don't have any stacked options,
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* THEN indicate that we don't have any of these options
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f5fc51 |
*/
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f5fc51 |
if (arg_list == NULL) {
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od->fOptState &= OPTST_PERSISTENT_MASK;
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f5fc51 |
if ((od->fOptState & OPTST_INITENABLED) == 0)
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od->fOptState |= OPTST_DISABLED;
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f5fc51 |
return;
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f5fc51 |
}
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f5fc51 |
#ifdef WITH_LIBREGEX
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{
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f5fc51 |
regex_t re;
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f5fc51 |
int i, ct, dIdx;
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f5fc51 |
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if (regcomp(&re, od->optArg.argString, REG_NOSUB) != 0)
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f5fc51 |
return;
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f5fc51 |
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f5fc51 |
/*
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f5fc51 |
* search the list for the entry(s) to remove. Entries that
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f5fc51 |
* are removed are *not* copied into the result. The source
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f5fc51 |
* index is incremented every time. The destination only when
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f5fc51 |
* we are keeping a define.
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f5fc51 |
*/
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f5fc51 |
for (i = 0, dIdx = 0, ct = arg_list->useCt; --ct >= 0; i++) {
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f5fc51 |
char const * pzSrc = arg_list->apzArgs[ i ];
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f5fc51 |
char * pzEq = strchr(pzSrc, '=');
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f5fc51 |
int res;
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f5fc51 |
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f5fc51 |
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f5fc51 |
if (pzEq != NULL)
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*pzEq = NUL;
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f5fc51 |
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res = regexec(&re, pzSrc, (size_t)0, NULL, 0);
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f5fc51 |
switch (res) {
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f5fc51 |
case 0:
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f5fc51 |
/*
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f5fc51 |
* Remove this entry by reducing the in-use count
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f5fc51 |
* and *not* putting the string pointer back into
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* the list.
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*/
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AGFREE(pzSrc);
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arg_list->useCt--;
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break;
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default:
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f5fc51 |
case REG_NOMATCH:
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if (pzEq != NULL)
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f5fc51 |
*pzEq = '=';
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f5fc51 |
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f5fc51 |
/*
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f5fc51 |
* IF we have dropped an entry
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f5fc51 |
* THEN we have to move the current one.
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f5fc51 |
*/
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f5fc51 |
if (dIdx != i)
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f5fc51 |
arg_list->apzArgs[ dIdx ] = pzSrc;
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f5fc51 |
dIdx++;
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}
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}
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f5fc51 |
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f5fc51 |
regfree(&re);
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f5fc51 |
}
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f5fc51 |
#else /* not WITH_LIBREGEX */
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f5fc51 |
{
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f5fc51 |
int i, ct, dIdx;
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f5fc51 |
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f5fc51 |
/*
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f5fc51 |
* search the list for the entry(s) to remove. Entries that
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f5fc51 |
* are removed are *not* copied into the result. The source
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f5fc51 |
* index is incremented every time. The destination only when
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f5fc51 |
* we are keeping a define.
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f5fc51 |
*/
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for (i = 0, dIdx = 0, ct = arg_list->useCt; --ct >= 0; i++) {
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f5fc51 |
const char * pzSrc = arg_list->apzArgs[ i ];
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f5fc51 |
char * pzEq = strchr(pzSrc, '=');
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f5fc51 |
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f5fc51 |
if (pzEq != NULL)
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f5fc51 |
*pzEq = NUL;
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f5fc51 |
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f5fc51 |
if (strcmp(pzSrc, od->optArg.argString) == 0) {
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f5fc51 |
/*
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f5fc51 |
* Remove this entry by reducing the in-use count
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f5fc51 |
* and *not* putting the string pointer back into
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f5fc51 |
* the list.
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f5fc51 |
*/
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f5fc51 |
AGFREE(pzSrc);
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f5fc51 |
arg_list->useCt--;
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f5fc51 |
} else {
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f5fc51 |
if (pzEq != NULL)
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f5fc51 |
*pzEq = '=';
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f5fc51 |
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f5fc51 |
/*
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f5fc51 |
* IF we have dropped an entry
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f5fc51 |
* THEN we have to move the current one.
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f5fc51 |
*/
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f5fc51 |
if (dIdx != i)
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f5fc51 |
arg_list->apzArgs[ dIdx ] = pzSrc;
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f5fc51 |
dIdx++;
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f5fc51 |
}
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f5fc51 |
}
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f5fc51 |
}
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f5fc51 |
#endif /* WITH_LIBREGEX */
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f5fc51 |
/*
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f5fc51 |
* IF we have unstacked everything,
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f5fc51 |
* THEN indicate that we don't have any of these options
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f5fc51 |
*/
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f5fc51 |
if (arg_list->useCt == 0) {
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f5fc51 |
od->fOptState &= OPTST_PERSISTENT_MASK;
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f5fc51 |
if ((od->fOptState & OPTST_INITENABLED) == 0)
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f5fc51 |
od->fOptState |= OPTST_DISABLED;
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f5fc51 |
AGFREE(arg_list);
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|
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f5fc51 |
od->optCookie = NULL;
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|
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f5fc51 |
}
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f5fc51 |
}
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f5fc51 |
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f5fc51 |
|
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f5fc51 |
/*
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f5fc51 |
* Put an entry into an argument list. The first argument points to
|
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f5fc51 |
* a pointer to the argument list structure. It gets passed around
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f5fc51 |
* as an opaque address.
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f5fc51 |
*/
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f5fc51 |
static void
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f5fc51 |
addArgListEntry(void ** ppAL, void * entry)
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f5fc51 |
{
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f5fc51 |
tArgList * pAL = *(void **)ppAL;
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f5fc51 |
|
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f5fc51 |
/*
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f5fc51 |
* IF we have never allocated one of these,
|
|
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f5fc51 |
* THEN allocate one now
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f5fc51 |
*/
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|
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f5fc51 |
if (pAL == NULL) {
|
|
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f5fc51 |
pAL = (tArgList *)AGALOC(sizeof(*pAL), "new option arg stack");
|
|
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f5fc51 |
if (pAL == NULL)
|
|
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f5fc51 |
return;
|
|
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f5fc51 |
pAL->useCt = 0;
|
|
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f5fc51 |
pAL->allocCt = MIN_ARG_ALLOC_CT;
|
|
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f5fc51 |
*ppAL = VOIDP(pAL);
|
|
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f5fc51 |
}
|
|
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f5fc51 |
|
|
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f5fc51 |
/*
|
|
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f5fc51 |
* ELSE if we are out of room
|
|
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f5fc51 |
* THEN make it bigger
|
|
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f5fc51 |
*/
|
|
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f5fc51 |
else if (pAL->useCt >= pAL->allocCt) {
|
|
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f5fc51 |
size_t sz = sizeof(*pAL);
|
|
Packit Service |
f5fc51 |
pAL->allocCt += INCR_ARG_ALLOC_CT;
|
|
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f5fc51 |
|
|
Packit Service |
f5fc51 |
/*
|
|
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f5fc51 |
* The base structure contains space for MIN_ARG_ALLOC_CT
|
|
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f5fc51 |
* pointers. We subtract it off to find our augment size.
|
|
Packit Service |
f5fc51 |
*/
|
|
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f5fc51 |
sz += sizeof(char *) * ((size_t)pAL->allocCt - MIN_ARG_ALLOC_CT);
|
|
Packit Service |
f5fc51 |
pAL = (tArgList *)AGREALOC(VOIDP(pAL), sz, "expanded opt arg stack");
|
|
Packit Service |
f5fc51 |
if (pAL == NULL)
|
|
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f5fc51 |
return;
|
|
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f5fc51 |
*ppAL = VOIDP(pAL);
|
|
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f5fc51 |
}
|
|
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f5fc51 |
|
|
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f5fc51 |
/*
|
|
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f5fc51 |
* Insert the new argument into the list
|
|
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f5fc51 |
*/
|
|
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f5fc51 |
pAL->apzArgs[ (pAL->useCt)++ ] = entry;
|
|
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f5fc51 |
}
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|
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f5fc51 |
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Packit Service |
f5fc51 |
|
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f5fc51 |
/*=export_func optionStackArg
|
|
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f5fc51 |
* private:
|
|
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f5fc51 |
*
|
|
Packit Service |
f5fc51 |
* what: put option args on a stack
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|
Packit Service |
f5fc51 |
* arg: + tOptions * + opts + program options descriptor +
|
|
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f5fc51 |
* arg: + tOptDesc * + od + the descriptor for this arg +
|
|
Packit Service |
f5fc51 |
*
|
|
Packit Service |
f5fc51 |
* doc:
|
|
Packit Service |
f5fc51 |
* Keep an entry-ordered list of option arguments.
|
|
Packit Service |
f5fc51 |
=*/
|
|
Packit Service |
f5fc51 |
void
|
|
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f5fc51 |
optionStackArg(tOptions * opts, tOptDesc * od)
|
|
Packit Service |
f5fc51 |
{
|
|
Packit Service |
f5fc51 |
char * pz;
|
|
Packit Service |
f5fc51 |
|
|
Packit Service |
f5fc51 |
if (INQUERY_CALL(opts, od))
|
|
Packit Service |
f5fc51 |
return;
|
|
Packit Service |
f5fc51 |
|
|
Packit Service |
f5fc51 |
if ((od->fOptState & OPTST_RESET) != 0) {
|
|
Packit Service |
f5fc51 |
tArgList * arg_list = od->optCookie;
|
|
Packit Service |
f5fc51 |
int ix;
|
|
Packit Service |
f5fc51 |
if (arg_list == NULL)
|
|
Packit Service |
f5fc51 |
return;
|
|
Packit Service |
f5fc51 |
|
|
Packit Service |
f5fc51 |
ix = arg_list->useCt;
|
|
Packit Service |
f5fc51 |
while (--ix >= 0)
|
|
Packit Service |
f5fc51 |
AGFREE(arg_list->apzArgs[ix]);
|
|
Packit Service |
f5fc51 |
AGFREE(arg_list);
|
|
Packit Service |
f5fc51 |
|
|
Packit Service |
f5fc51 |
} else {
|
|
Packit Service |
f5fc51 |
if (od->optArg.argString == NULL)
|
|
Packit Service |
f5fc51 |
return;
|
|
Packit Service |
f5fc51 |
|
|
Packit Service |
f5fc51 |
AGDUPSTR(pz, od->optArg.argString, "stack arg");
|
|
Packit Service |
f5fc51 |
addArgListEntry(&(od->optCookie), VOIDP(pz));
|
|
Packit Service |
f5fc51 |
}
|
|
Packit Service |
f5fc51 |
}
|
|
Packit Service |
f5fc51 |
/** @}
|
|
Packit Service |
f5fc51 |
*
|
|
Packit Service |
f5fc51 |
* Local Variables:
|
|
Packit Service |
f5fc51 |
* mode: C
|
|
Packit Service |
f5fc51 |
* c-file-style: "stroustrup"
|
|
Packit Service |
f5fc51 |
* indent-tabs-mode: nil
|
|
Packit Service |
f5fc51 |
* End:
|
|
Packit Service |
f5fc51 |
* end of autoopts/stack.c */
|