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Annotation of researchv10dc/cmd/bison/getargs.c, revision 1.1

1.1     ! root        1: /* Parse command line arguments for bison,
        !             2:    Copyright (C) 1984, 1986 Bob Corbett and Free Software Foundation, Inc.
        !             3: 
        !             4: BISON is distributed in the hope that it will be useful, but WITHOUT ANY
        !             5: WARRANTY.  No author or distributor accepts responsibility to anyone
        !             6: for the consequences of using it or for whether it serves any
        !             7: particular purpose or works at all, unless he says so in writing.
        !             8: Refer to the BISON General Public License for full details.
        !             9: 
        !            10: Everyone is granted permission to copy, modify and redistribute BISON,
        !            11: but only under the conditions described in the BISON General Public
        !            12: License.  A copy of this license is supposed to have been given to you
        !            13: along with BISON so you can know your rights and responsibilities.  It
        !            14: should be in a file named COPYING.  Among other things, the copyright
        !            15: notice and this notice must be preserved on all copies.
        !            16: 
        !            17:  In other words, you are welcome to use, share and improve this program.
        !            18:  You are forbidden to forbid anyone else to use, share and improve
        !            19:  what you give them.   Help stamp out software-hoarding!  */
        !            20: 
        !            21: #include <stdio.h>
        !            22: #include "files.h"
        !            23: 
        !            24: int verboseflag;
        !            25: int definesflag;
        !            26: extern int fixed_outfiles;/* JF */
        !            27: 
        !            28: 
        !            29: getargs(argc, argv)
        !            30: int argc;
        !            31: char *argv[];
        !            32: {
        !            33:   register int c;
        !            34:   char *p = argv[0];
        !            35:   char *lastcomponent;
        !            36: 
        !            37:   extern int optind;
        !            38:   extern char *optarg;
        !            39: 
        !            40:   verboseflag = 0;
        !            41:   definesflag = 0;
        !            42:   fixed_outfiles = 0;
        !            43: 
        !            44:   /* See if the program was invoked as "yacc".  */
        !            45: 
        !            46:   lastcomponent = p;
        !            47:   while (*p)
        !            48:     {
        !            49:       if (*p == '/')
        !            50:        lastcomponent = p + 1;
        !            51:       p++;
        !            52:     }
        !            53:   if (! strcmp (lastcomponent, "yacc"))
        !            54:     /* If so, pretend we have "-y" as argument.  */
        !            55:     fixed_outfiles = 1;
        !            56: 
        !            57:   while ((c = getopt (argc, argv, "yYvVdDo:O:")) != EOF)
        !            58:     switch (c)
        !            59:       {
        !            60:       case 'y':
        !            61:       case 'Y':
        !            62:        fixed_outfiles = 1;
        !            63:        break;
        !            64: 
        !            65:       case 'v':
        !            66:       case 'V':
        !            67:        verboseflag = 1;
        !            68:        break;
        !            69: 
        !            70:       case 'd':
        !            71:       case 'D':
        !            72:        definesflag = 1;
        !            73:        break;
        !            74: 
        !            75:       case 'o':
        !            76:       case 'O':
        !            77:        spec_outfile = optarg;
        !            78:       }
        !            79: 
        !            80:   if (optind == argc)
        !            81:     fatal("grammar file not specified");
        !            82:   else
        !            83:     infile = argv[optind];
        !            84: 
        !            85:   if (optind < argc - 1)
        !            86:     fprintf(stderr, "bison: warning: extra arguments ignored\n");
        !            87: }

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