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/**
* \file reset.c
*
* Time-stamp: "2012-08-11 08:35:11 bkorb"
*
* This file is part of AutoOpts, a companion to AutoGen.
* AutoOpts is free software.
* AutoOpts is Copyright (c) 1992-2012 by Bruce Korb - all rights reserved
*
* AutoOpts is available under any one of two licenses. The license
* in use must be one of these two and the choice is under the control
* of the user of the license.
*
* The GNU Lesser General Public License, version 3 or later
* See the files "COPYING.lgplv3" and "COPYING.gplv3"
*
* The Modified Berkeley Software Distribution License
* See the file "COPYING.mbsd"
*
* These files have the following md5sums:
*
* 43b91e8ca915626ed3818ffb1b71248b pkg/libopts/COPYING.gplv3
* 06a1a2e4760c90ea5e1dad8dfaac4d39 pkg/libopts/COPYING.lgplv3
* 66a5cedaf62c4b2637025f049f9b826f pkg/libopts/COPYING.mbsd
*/
static void
optionReset( tOptions* pOpts, tOptDesc* pOD )
{
pOD->fOptState &= OPTST_PERSISTENT_MASK;
pOD->fOptState |= OPTST_RESET;
if (pOD->pOptProc != NULL)
pOD->pOptProc(pOpts, pOD);
pOD->optArg.argString =
pOpts->originalOptArgArray[ pOD->optIndex ].argString;
pOD->optCookie = pOpts->originalOptArgCookie[ pOD->optIndex ];
pOD->fOptState &= OPTST_PERSISTENT_MASK;
}
static void
optionResetEverything(tOptions * pOpts)
{
tOptDesc * pOD = pOpts->pOptDesc;
int ct = pOpts->presetOptCt;
for (;;) {
optionReset(pOpts, pOD);
if (--ct <= 0)
break;
pOD++;
}
}
/*=export_func optionResetOpt
* private:
*
* what: Reset the value of an option
* arg: + tOptions* + pOpts + program options descriptor +
* arg: + tOptDesc* + pOptDesc + the descriptor for this arg +
*
* doc:
* This code will cause another option to be reset to its initial state.
* For example, --reset=foo will cause the --foo option to be reset.
=*/
void
optionResetOpt( tOptions* pOpts, tOptDesc* pOD )
{
static bool reset_active = false;
tOptState opt_state = OPTSTATE_INITIALIZER(DEFINED);
char const * pzArg = pOD->optArg.argString;
tSuccess succ;
if (pOpts <= OPTPROC_EMIT_LIMIT)
return;
if (reset_active)
return;
if ( (! HAS_originalOptArgArray(pOpts))
|| (pOpts->originalOptArgCookie == NULL)) {
fputs(zResetNotConfig, stderr);
_exit(EX_SOFTWARE);
}
if ((pzArg == NULL) || (*pzArg == NUL)) {
fputs(zNoResetArg, stderr);
pOpts->pUsageProc(pOpts, EXIT_FAILURE);
/* NOTREACHED */
assert(0 == 1);
}
reset_active = true;
if (pzArg[1] == NUL) {
if (*pzArg == '*') {
optionResetEverything(pOpts);
reset_active = false;
return;
}
succ = opt_find_short(pOpts, (tAoUC)*pzArg, &opt_state);
if (! SUCCESSFUL(succ)) {
fprintf(stderr, zIllOptChr, pOpts->pzProgPath, *pzArg);
pOpts->pUsageProc(pOpts, EXIT_FAILURE);
/* NOTREACHED */
assert(0 == 1);
}
} else {
succ = opt_find_long(pOpts, (char *)pzArg, &opt_state);
if (! SUCCESSFUL(succ)) {
fprintf(stderr, zIllOptStr, pOpts->pzProgPath, pzArg);
pOpts->pUsageProc(pOpts, EXIT_FAILURE);
/* NOTREACHED */
assert(0 == 1);
}
}
/*
* We've found the indicated option. Turn off all non-persistent
* flags because we're forcing the option back to its initialized state.
* Call any callout procedure to handle whatever it needs to.
* Finally, clear the reset flag, too.
*/
optionReset(pOpts, opt_state.pOD);
reset_active = false;
}
/*
* Local Variables:
* mode: C
* c-file-style: "stroustrup"
* indent-tabs-mode: nil
* End:
* end of autoopts/reset.c */
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