177 lines
5.2 KiB
C
177 lines
5.2 KiB
C
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/*
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* $Id: numeric.c,v 4.22 2009/08/01 17:43:06 bkorb Exp $
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* Time-stamp: "2009-07-23 17:25:39 bkorb"
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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) 1992-2009 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 optionShowRange
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* private:
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*
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* what:
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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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* arg: + void * + rng_table + the value range tables +
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* arg: + int + rng_count + the number of entries +
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*
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* doc:
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* Show information about a numeric option with range constraints.
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=*/
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void
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optionShowRange(tOptions* pOpts, tOptDesc* pOD, void * rng_table, int rng_ct)
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{
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static char const bullet[] = "\t\t\t\t- ";
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static char const deepin[] = "\t\t\t\t ";
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static char const onetab[] = "\t";
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const struct {long const rmin, rmax;} * rng = rng_table;
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char const * pz_indent =
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(pOpts != OPTPROC_EMIT_USAGE) ? onetab : bullet;
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if ((pOpts == OPTPROC_EMIT_USAGE) || (pOpts > OPTPROC_EMIT_LIMIT)) {
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char const * lie_in_range = zRangeLie;
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if (pOpts > OPTPROC_EMIT_LIMIT) {
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fprintf(option_usage_fp, zRangeErr,
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pOpts->pzProgName, pOD->pz_Name, pOD->optArg.argString);
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fprintf(option_usage_fp, "The %s option:\n", pOD->pz_Name);
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lie_in_range = zRangeBadLie;
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pz_indent = "";
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}
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if (pOD->fOptState & OPTST_SCALED_NUM)
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fprintf(option_usage_fp, zRangeScaled, pz_indent);
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if (rng_ct > 1) {
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fprintf(option_usage_fp, lie_in_range, pz_indent);
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pz_indent =
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(pOpts != OPTPROC_EMIT_USAGE) ? onetab : deepin;
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} else {
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fprintf(option_usage_fp, zRangeOnly, pz_indent);
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pz_indent = onetab + 1; /* empty string */
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}
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for (;;) {
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if (rng->rmax == LONG_MIN)
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fprintf(option_usage_fp, zRangeExact, pz_indent, rng->rmin);
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else if (rng->rmin == LONG_MIN)
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fprintf(option_usage_fp, zRangeUpto, pz_indent, rng->rmax);
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else if (rng->rmax == LONG_MAX)
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fprintf(option_usage_fp, zRangeAbove, pz_indent, rng->rmin);
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else
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fprintf(option_usage_fp, zRange, pz_indent, rng->rmin,
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rng->rmax);
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if (--rng_ct <= 0) {
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fputc('\n', option_usage_fp);
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break;
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}
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fputs(zRangeOr, option_usage_fp);
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rng++;
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pz_indent =
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(pOpts != OPTPROC_EMIT_USAGE) ? onetab : deepin;
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}
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if (pOpts > OPTPROC_EMIT_LIMIT)
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pOpts->pUsageProc(pOpts, EXIT_FAILURE);
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}
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}
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/*=export_func optionNumericVal
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* private:
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*
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* what: process an option with a numeric 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 numeric value.
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=*/
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void
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optionNumericVal(tOptions* pOpts, tOptDesc* pOD )
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{
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char* pz;
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long val;
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/*
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* Numeric options may have a range associated with it.
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* If it does, the usage procedure requests that it be
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* emitted by passing a NULL pOD pointer. Also bail out
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* if there is no option argument or if we are being reset.
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*/
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if ( (pOD == NULL)
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|| (pOD->optArg.argString == NULL)
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|| ((pOD->fOptState & OPTST_RESET) != 0))
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return;
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errno = 0;
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val = strtol(pOD->optArg.argString, &pz, 0);
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if ((pz == pOD->optArg.argString) || (errno != 0))
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goto bad_number;
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if ((pOD->fOptState & OPTST_SCALED_NUM) != 0)
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switch (*(pz++)) {
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case '\0': pz--; break;
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case 't': val *= 1000;
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case 'g': val *= 1000;
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case 'm': val *= 1000;
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case 'k': val *= 1000; break;
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case 'T': val *= 1024;
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case 'G': val *= 1024;
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case 'M': val *= 1024;
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case 'K': val *= 1024; break;
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default: goto bad_number;
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}
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if (*pz != NUL)
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goto bad_number;
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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.argInt = val;
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return;
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bad_number:
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fprintf( stderr, zNotNumber, pOpts->pzProgName, pOD->optArg.argString );
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if ((pOpts->fOptSet & OPTPROC_ERRSTOP) != 0)
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(*(pOpts->pUsageProc))(pOpts, EXIT_FAILURE);
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pOD->optArg.argInt = ~0;
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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/numeric.c */
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