107 lines
3.6 KiB
C
107 lines
3.6 KiB
C
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/*
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* $Id: boolean.c,v 4.10 2007/02/04 17:44:12 bkorb Exp $
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* Time-stamp: "2007-01-13 10:10:39 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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/*
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* Automated Options copyright 1992-2007 Bruce Korb
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*
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* Automated Options is free software.
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* You may redistribute it and/or modify it under the terms of the
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* GNU General Public License, as published by the Free Software
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* Foundation; either version 2, or (at your option) any later version.
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*
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* Automated Options is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Automated Options. See the file "COPYING". If not,
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* write to: The Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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* As a special exception, Bruce Korb gives permission for additional
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* uses of the text contained in his release of AutoOpts.
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*
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* The exception is that, if you link the AutoOpts library with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the AutoOpts library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by Bruce Korb under
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* the name AutoOpts. If you copy code from other sources under the
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* General Public License into a copy of AutoOpts, as the General Public
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* License permits, the exception does not apply to the code that you add
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* in this way. To avoid misleading anyone as to the status of such
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* modified files, you must delete this exception notice from them.
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*
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* If you write modifications of your own for AutoOpts, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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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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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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