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/**
* @file check.c
*
* @brief option consistency checks.
*
* @addtogroup autoopts
* @{
*/
/*
* This file is part of AutoOpts, a companion to AutoGen.
* AutoOpts is free software.
* AutoOpts is Copyright (C) 1992-2013 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
*/
/**
* Check for conflicts based on "must" and "cannot" attributes.
*/
static bool
has_conflict(tOptions * pOpts, tOptDesc * od)
{
if (od->pOptMust != NULL) {
int const * must = od->pOptMust;
while (*must != NO_EQUIVALENT) {
tOptDesc * p = pOpts->pOptDesc + *(must++);
if (UNUSED_OPT(p)) {
const tOptDesc * ood = pOpts->pOptDesc + must[-1];
fprintf(stderr, zneed_fmt, pOpts->pzProgName,
od->pz_Name, ood->pz_Name);
return true;
}
}
}
if (od->pOptCant != NULL) {
int const * cant = od->pOptCant;
while (*cant != NO_EQUIVALENT) {
tOptDesc * p = pOpts->pOptDesc + *(cant++);
if (SELECTED_OPT(p)) {
const tOptDesc * ood = pOpts->pOptDesc + cant[-1];
fprintf(stderr, zconflict_fmt, pOpts->pzProgName,
od->pz_Name, ood->pz_Name);
return true;
}
}
}
return false;
}
/**
* Check that the option occurs often enough. Too often is already checked.
*/
static bool
occurs_enough(tOptions * pOpts, tOptDesc * pOD)
{
(void)pOpts;
/*
* IF the occurrence counts have been satisfied,
* THEN there is no problem.
*/
if (pOD->optOccCt >= pOD->optMinCt)
return true;
/*
* IF MUST_SET means SET and PRESET are okay,
* so min occurrence count doesn't count
*/
if ( (pOD->fOptState & OPTST_MUST_SET)
&& (pOD->fOptState & (OPTST_PRESET | OPTST_SET)) )
return true;
if (pOD->optMinCt > 1)
fprintf(stderr, zneed_more, pOpts->pzProgName, pOD->pz_Name,
pOD->optMinCt);
else fprintf(stderr, zneed_one, pOpts->pzProgName, pOD->pz_Name);
return false;
}
/**
* Verify option consistency.
*
* Make sure that the argument list passes our consistency tests.
*/
LOCAL bool
is_consistent(tOptions * pOpts)
{
tOptDesc * pOD = pOpts->pOptDesc;
int oCt = pOpts->presetOptCt;
/*
* FOR each of "oCt" options, ...
*/
for (;;) {
/*
* IF the current option was provided on the command line
* THEN ensure that any "MUST" requirements are not
* "DEFAULT" (unspecified) *AND* ensure that any
* "CANT" options have not been SET or DEFINED.
*/
if (SELECTED_OPT(pOD)) {
if (has_conflict(pOpts, pOD))
return false;
}
/*
* IF this option is not equivalenced to another,
* OR it is equivalenced to itself (is the equiv. root)
* THEN we need to make sure it occurs often enough.
*/
if ( (pOD->optEquivIndex == NO_EQUIVALENT)
|| (pOD->optEquivIndex == pOD->optIndex) )
if (! occurs_enough(pOpts, pOD))
return false;
if (--oCt <= 0)
break;
pOD++;
}
/*
* IF we are stopping on errors, check to see if any remaining
* arguments are required to be there or prohibited from being there.
*/
if ((pOpts->fOptSet & OPTPROC_ERRSTOP) != 0) {
/*
* Check for prohibition
*/
if ((pOpts->fOptSet & OPTPROC_NO_ARGS) != 0) {
if (pOpts->origArgCt > pOpts->curOptIdx) {
fprintf(stderr, zNoArgs, pOpts->pzProgName);
return false;
}
}
/*
* ELSE not prohibited, check for being required
*/
else if ((pOpts->fOptSet & OPTPROC_ARGS_REQ) != 0) {
if (pOpts->origArgCt <= pOpts->curOptIdx) {
fprintf(stderr, zargs_must, pOpts->pzProgName);
return false;
}
}
}
return true;
}
/** @}
*
* Local Variables:
* mode: C
* c-file-style: "stroustrup"
* indent-tabs-mode: nil
* End:
* end of autoopts/check.c */
|
