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/*
* Time-stamp: "2012-08-11 08:41:53 bkorb"
*
* This module implements the default usage procedure for
* Automated Options. It may be overridden, of course.
*/
/*
* This file is part of AutoOpts, a companion to AutoGen.
* AutoOpts is free software.
* AutoOpts is Copyright (c) 1992-2012 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 md5sums:
*
* 43b91e8ca915626ed3818ffb1b71248b pkg/libopts/COPYING.gplv3
* 06a1a2e4760c90ea5e1dad8dfaac4d39 pkg/libopts/COPYING.lgplv3
* 66a5cedaf62c4b2637025f049f9b826f pkg/libopts/COPYING.mbsd
*/
/*=export_func optionVersion
*
* what: return the compiled AutoOpts version number
* ret_type: char const*
* ret_desc: the version string in constant memory
* doc:
* Returns the full version string compiled into the library.
* The returned string cannot be modified.
=*/
char const*
optionVersion(void)
{
static char const zVersion[] =
STR(AO_CURRENT.AO_REVISION);
return zVersion;
}
/**
* Select among various ways to emit version information.
*
* @param opts the option descriptor
* @param fp the output stream
*/
static void
emit_simple_ver(tOptions * opts, FILE * fp)
{
/*
* Use the supplied string
*/
if (opts->pzFullVersion != NULL)
fputs(opts->pzFullVersion, fp);
/*
* Extract the interesting part of the copyright string
*/
else if (opts->pzCopyright != NULL) {
char const * pe = strchr(opts->pzCopyright, NL);
if (pe == NULL)
pe = opts->pzCopyright + strlen(opts->pzCopyright);
fwrite(opts->pzCopyright, 1, pe - opts->pzCopyright, fp);
}
/*
* Extract the interesting part of the usage title string
*/
else {
char const * pe = strchr(opts->pzUsageTitle, NL);
if (pe == NULL)
pe = opts->pzUsageTitle + strlen(opts->pzUsageTitle);
fwrite(opts->pzUsageTitle, 1, pe - opts->pzUsageTitle, fp);
}
fputc(NL, fp);
}
static void
emit_copy_ver(tOptions * opts, FILE * fp)
{
if (opts->pzCopyright != NULL)
fputs(opts->pzCopyright, fp);
else if (opts->pzFullVersion != NULL)
fputs(opts->pzFullVersion, fp);
else {
char const * pe = strchr(opts->pzUsageTitle, NL);
if (pe == NULL)
pe = opts->pzUsageTitle + strlen(opts->pzUsageTitle);
fwrite(opts->pzUsageTitle, 1, pe - opts->pzCopyright, fp);
}
fputc(NL, fp);
if (HAS_pzPkgDataDir(opts) && (opts->pzPackager != NULL))
fputs(opts->pzPackager, fp);
else if (opts->pzBugAddr != NULL)
fprintf(fp, zPlsSendBugs, opts->pzBugAddr);
}
static void
emit_copy_note(tOptions * opts, FILE * fp)
{
if (opts->pzCopyright != NULL) {
fputs(opts->pzCopyright, fp);
fputc(NL, fp);
}
if (opts->pzCopyNotice != NULL) {
fputs(opts->pzCopyNotice, fp);
fputc(NL, fp);
}
fprintf(fp, zAO_Ver, optionVersion());
if (HAS_pzPkgDataDir(opts) && (opts->pzPackager != NULL))
fputs(opts->pzPackager, fp);
else if (opts->pzBugAddr != NULL)
fprintf(fp, zPlsSendBugs, opts->pzBugAddr);
}
static void
print_ver(tOptions * opts, tOptDesc * od, FILE * fp)
{
char ch;
if (opts <= OPTPROC_EMIT_LIMIT)
return;
/*
* IF we have an argument for this option, use it
* Otherwise, default to version only or copyright note,
* depending on whether the layout is GNU standard form or not.
*/
if ( (od->fOptState & OPTST_ARG_OPTIONAL)
&& (od->optArg.argString != NULL)
&& (od->optArg.argString[0] != NUL))
ch = od->optArg.argString[0];
else {
set_usage_flags(opts, NULL);
ch = (opts->fOptSet & OPTPROC_GNUUSAGE) ? 'c' : 'v';
}
switch (ch) {
case NUL: /* arg provided, but empty */
case 'v': case 'V': emit_simple_ver(opts, fp); break;
case 'c': case 'C': emit_copy_ver( opts, fp); break;
case 'n': case 'N': emit_copy_note( opts, fp); break;
default:
fprintf(stderr, zBadVerArg, ch);
exit(EXIT_FAILURE);
}
fflush(fp);
if (ferror(fp) != 0) {
fputs(zOutputFail, stderr);
exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
}
/*=export_func optionPrintVersion
* private:
*
* what: Print the program version
* arg: + tOptions* + opts + program options descriptor +
* arg: + tOptDesc* + od + the descriptor for this arg +
*
* doc:
* This routine will print the version to stdout.
=*/
void
optionPrintVersion(tOptions * opts, tOptDesc * od)
{
print_ver(opts, od, stdout);
}
/*=export_func optionVersionStderr
* private:
*
* what: Print the program version to stderr
* arg: + tOptions* + opts + program options descriptor +
* arg: + tOptDesc* + od + the descriptor for this arg +
*
* doc:
* This routine will print the version to stderr.
=*/
void
optionVersionStderr(tOptions * opts, tOptDesc * od)
{
print_ver(opts, od, stderr);
}
/*
* Local Variables:
* mode: C
* c-file-style: "stroustrup"
* indent-tabs-mode: nil
* End:
* end of autoopts/version.c */
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