142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
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/**
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* \file reset.c
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*
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* Reset the option state to the compiled state.
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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) 1992-2014 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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static void
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optionReset( tOptions* pOpts, tOptDesc* pOD )
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{
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pOD->fOptState &= OPTST_PERSISTENT_MASK;
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pOD->fOptState |= OPTST_RESET;
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if (pOD->pOptProc != NULL)
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pOD->pOptProc(pOpts, pOD);
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pOD->optArg.argString =
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pOpts->originalOptArgArray[ pOD->optIndex ].argString;
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pOD->optCookie = pOpts->originalOptArgCookie[ pOD->optIndex ];
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pOD->fOptState &= OPTST_PERSISTENT_MASK;
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}
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static void
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optionResetEverything(tOptions * pOpts)
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{
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tOptDesc * pOD = pOpts->pOptDesc;
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int ct = pOpts->presetOptCt;
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for (;;) {
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optionReset(pOpts, pOD);
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if (--ct <= 0)
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break;
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pOD++;
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}
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}
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/*=export_func optionResetOpt
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* private:
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*
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* what: Reset the value of an option
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* arg: + tOptions* + pOpts + program options descriptor +
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* arg: + tOptDesc* + pOptDesc + the descriptor for this arg +
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*
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* doc:
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* This code will cause another option to be reset to its initial state.
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* For example, --reset=foo will cause the --foo option to be reset.
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=*/
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void
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optionResetOpt(tOptions * pOpts, tOptDesc * pOD)
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{
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static bool reset_active = false;
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tOptState opt_state = OPTSTATE_INITIALIZER(DEFINED);
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char const * pzArg = pOD->optArg.argString;
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tSuccess succ;
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if (pOpts <= OPTPROC_EMIT_LIMIT)
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return;
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if (reset_active)
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return;
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if ( (! HAS_originalOptArgArray(pOpts))
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|| (pOpts->originalOptArgCookie == NULL))
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ao_bug(zno_reset);
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if ((pzArg == NULL) || (*pzArg == NUL)) {
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fprintf(stderr, zreset_arg, pOpts->pzProgName, pOD->pz_Name);
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pOpts->pUsageProc(pOpts, EXIT_FAILURE);
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/* NOTREACHED */
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assert(0 == 1);
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}
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reset_active = true;
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if (pzArg[1] == NUL) {
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if (*pzArg == '*') {
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optionResetEverything(pOpts);
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reset_active = false;
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return;
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}
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succ = opt_find_short(pOpts, (uint8_t)*pzArg, &opt_state);
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if (! SUCCESSFUL(succ)) {
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fprintf(stderr, zIllOptChr, pOpts->pzProgPath, *pzArg);
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pOpts->pUsageProc(pOpts, EXIT_FAILURE);
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/* NOTREACHED */
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assert(0 == 1);
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}
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} else {
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succ = opt_find_long(pOpts, (char *)(intptr_t)pzArg, &opt_state);
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if (! SUCCESSFUL(succ)) {
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fprintf(stderr, zIllOptStr, pOpts->pzProgPath, pzArg);
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pOpts->pUsageProc(pOpts, EXIT_FAILURE);
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/* NOTREACHED */
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assert(0 == 1);
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}
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}
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/*
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* We've found the indicated option. Turn off all non-persistent
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* flags because we're forcing the option back to its initialized state.
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* Call any callout procedure to handle whatever it needs to.
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* Finally, clear the reset flag, too.
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*/
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optionReset(pOpts, opt_state.pOD);
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reset_active = false;
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}
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/** @}
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*
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* Local Variables:
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* mode: C
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* c-file-style: "stroustrup"
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* indent-tabs-mode: nil
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* End:
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* end of autoopts/reset.c */
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