/*  $Id: version.c,v 4.12 2007/07/04 21:36:39 bkorb Exp $
 * Time-stamp:      "2007-07-04 13:42:04 bkorb"
 *
 *  This module implements the default usage procedure for
 *  Automated Options.  It may be overridden, of course.
 */

static char const zAOV[] =
    "Automated Options version %s\n"
    "\tcopyright (c) 1999-2007 Bruce Korb - all rights reserved\n";

/*
 *  This file is part of AutoOpts, a companion to AutoGen.
 *  AutoOpts is free software.
 *  AutoOpts is copyright (c) 1992-2007 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:
 *
 *  239588c55c22c60ffe159946a760a33e pkg/libopts/COPYING.gplv3
 *  fa82ca978890795162346e661b47161a pkg/libopts/COPYING.lgplv3
 *  66a5cedaf62c4b2637025f049f9b826f pkg/libopts/COPYING.mbsd
 */

/* = = = START-STATIC-FORWARD = = = */
/* static forward declarations maintained by :mkfwd */
static void
printVersion( tOptions* pOpts, tOptDesc* pOD, FILE* fp );
/* = = = END-STATIC-FORWARD = = = */

/*=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;
}


static void
printVersion( tOptions* pOpts, tOptDesc* pOD, FILE* fp )
{
    char swCh;

    /*
     *  IF the optional argument flag is off, or the argument is not provided,
     *  then just print the version.
     */
    if (  ((pOD->fOptState & OPTST_ARG_OPTIONAL) == 0)
       || (pOD->optArg.argString == NULL))
         swCh = 'v';
    else swCh = tolower(pOD->optArg.argString[0]);

    if (pOpts->pzFullVersion != NULL) {
        fputs( pOpts->pzFullVersion, fp );
        fputc( '\n', fp );

    } else {
        char const *pz = pOpts->pzUsageTitle;
        do { fputc(*pz, fp); } while (*(pz++) != '\n');
    }

    switch (swCh) {
    case NUL: /* arg provided, but empty */
    case 'v':
        break;

    case 'c':
        if (pOpts->pzCopyright != NULL) {
            fputs( pOpts->pzCopyright, fp );
            fputc( '\n', fp );
        }
        fprintf( fp, zAOV, optionVersion() );
        if (pOpts->pzBugAddr != NULL)
            fprintf( fp, zPlsSendBugs, pOpts->pzBugAddr );
        break;

    case 'n':
        if (pOpts->pzCopyright != NULL) {
            fputs( pOpts->pzCopyright, fp );
            fputc( '\n', fp );
            fputc( '\n', fp );
        }

        if (pOpts->pzCopyNotice != NULL) {
            fputs( pOpts->pzCopyNotice, fp );
            fputc( '\n', fp );
        }

        fprintf( fp, zAOV, optionVersion() );
        if (pOpts->pzBugAddr != NULL)
            fprintf( fp, zPlsSendBugs, pOpts->pzBugAddr );
        break;

    default:
        fprintf( stderr, zBadVerArg, swCh );
        exit( EXIT_FAILURE );
    }

    exit( EXIT_SUCCESS );
}

/*=export_func  optionPrintVersion
 * private:
 *
 * what:  Print the program version
 * arg:   + tOptions* + pOpts    + program options descriptor +
 * arg:   + tOptDesc* + pOptDesc + the descriptor for this arg +
 *
 * doc:
 *  This routine will print the version to stdout.
=*/
void
optionPrintVersion( tOptions*  pOpts, tOptDesc*  pOD )
{
    printVersion( pOpts, pOD, stdout );
}

/*=export_func  optionVersionStderr
 * private:
 *
 * what:  Print the program version to stderr
 * arg:   + tOptions* + pOpts    + program options descriptor +
 * arg:   + tOptDesc* + pOptDesc + the descriptor for this arg +
 *
 * doc:
 *  This routine will print the version to stderr.
=*/
void
optionVersionStderr( tOptions*  pOpts, tOptDesc*  pOD )
{
    printVersion( pOpts, pOD, stderr );
}

/*
 * Local Variables:
 * mode: C
 * c-file-style: "stroustrup"
 * indent-tabs-mode: nil
 * End:
 * end of autoopts/version.c */