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95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
/* $NetBSD: boolean.c,v 1.1.1.2 2012/01/31 21:27:49 kardel Exp $ */
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/**
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* \file boolean.c
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*
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* Time-stamp: "2010-07-10 11:02:10 bkorb"
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*
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* Automated Options Paged Usage module.
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*
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* This routine will run run-on options through a pager so the
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* user may examine, print or edit them at their leisure.
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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) 1992-2011 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 md5sums:
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*
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* 43b91e8ca915626ed3818ffb1b71248b pkg/libopts/COPYING.gplv3
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* 06a1a2e4760c90ea5e1dad8dfaac4d39 pkg/libopts/COPYING.lgplv3
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* 66a5cedaf62c4b2637025f049f9b826f pkg/libopts/COPYING.mbsd
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*/
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/*=export_func optionBooleanVal
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* private:
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*
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* what: Decipher a boolean value
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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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* Decipher a true or false value for a boolean valued option argument.
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* The value is true, unless it starts with 'n' or 'f' or "#f" or
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* it is an empty string or it is a number that evaluates to zero.
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=*/
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void
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optionBooleanVal( tOptions* pOpts, tOptDesc* pOD )
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{
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char* pz;
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ag_bool res = AG_TRUE;
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if ((pOD->fOptState & OPTST_RESET) != 0)
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return;
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if (pOD->optArg.argString == NULL) {
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pOD->optArg.argBool = AG_FALSE;
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return;
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}
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switch (*(pOD->optArg.argString)) {
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case '0':
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{
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long val = strtol( pOD->optArg.argString, &pz, 0 );
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if ((val != 0) || (*pz != NUL))
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break;
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/* FALLTHROUGH */
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}
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case 'N':
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case 'n':
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case 'F':
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case 'f':
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case NUL:
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res = AG_FALSE;
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break;
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case '#':
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if (pOD->optArg.argString[1] != 'f')
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break;
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res = AG_FALSE;
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}
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if (pOD->fOptState & OPTST_ALLOC_ARG) {
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AGFREE(pOD->optArg.argString);
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pOD->fOptState &= ~OPTST_ALLOC_ARG;
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}
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pOD->optArg.argBool = res;
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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/boolean.c */
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