/**
* \file boolean.c
*
* Handle options with true/false values for arguments.
*
* @addtogroup autoopts
* @{
*/
/*
* This routine will run run-on options through a pager so the
* user may examine, print or edit them at their leisure.
*
* This file is part of AutoOpts, a companion to AutoGen.
* AutoOpts is free software.
* AutoOpts is Copyright (C) 1992-2018 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 sha256 sums:
*
* 8584710e9b04216a394078dc156b781d0b47e1729104d666658aecef8ee32e95 COPYING.gplv3
* 4379e7444a0e2ce2b12dd6f5a52a27a4d02d39d247901d3285c88cf0d37f477b COPYING.lgplv3
* 13aa749a5b0a454917a944ed8fffc530b784f5ead522b1aacaf4ec8aa55a6239 COPYING.mbsd
*/
/*=export_func optionBooleanVal
* private:
*
* what: Decipher a boolean value
* arg: + tOptions * + opts + program options descriptor +
* arg: + tOptDesc * + od + the descriptor for this arg +
*
* doc:
* Decipher a true or false value for a boolean valued option argument.
* The value is true, unless it starts with 'n' or 'f' or "#f" or
* it is an empty string or it is a number that evaluates to zero.
=*/
void
optionBooleanVal(tOptions * opts, tOptDesc * od)
{
char * pz;
bool res = true;
if (INQUERY_CALL(opts, od))
return;
if (od->optArg.argString == NULL) {
od->optArg.argBool = false;
return;
}
switch (*(od->optArg.argString)) {
case '0':
{
long val = strtol(od->optArg.argString, &pz, 0);
if ((val != 0) || (*pz != NUL))
break;
}
/* FALLTHROUGH */
case 'N':
case 'n':
case 'F':
case 'f':
case NUL:
res = false;
break;
case '#':
if (od->optArg.argString[1] != 'f')
break;
res = false;
}
if (od->fOptState & OPTST_ALLOC_ARG) {
AGFREE(od->optArg.argString);
od->fOptState &= ~OPTST_ALLOC_ARG;
}
od->optArg.argBool = res;
}
/** @}
*
* Local Variables:
* mode: C
* c-file-style: "stroustrup"
* indent-tabs-mode: nil
* End:
* end of autoopts/boolean.c */
