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1.1 root 1: /* Parse command line arguments for bison,
2: Copyright (C) 1984, 1986, 1989 Free Software Foundation, Inc.
3:
4: This file is part of Bison, the GNU Compiler Compiler.
5:
6: Bison is free software; you can redistribute it and/or modify
7: it under the terms of the GNU General Public License as published by
8: the Free Software Foundation; either version 2, or (at your option)
9: any later version.
10:
11: Bison is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: GNU General Public License for more details.
15:
16: You should have received a copy of the GNU General Public License
17: along with Bison; see the file COPYING. If not, write to
18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19:
20:
21: #include <stdio.h>
22: #include "getopt.h"
23: #include "system.h"
24: #include "files.h"
25:
26: int verboseflag;
27: int definesflag;
28: int debugflag;
29: int nolinesflag;
30: char *spec_name_prefix; /* for -p. */
31: char *spec_file_prefix; /* for -b. */
32: extern int fixed_outfiles;/* for -y */
33:
34: extern char *program_name;
35: extern char *version_string;
36:
37: extern void fatal();
38:
39: struct option longopts[] =
40: {
41: {"debug", 0, &debugflag, 1},
42: {"defines", 0, &definesflag, 1},
43: {"file-prefix", 1, 0, 'b'},
44: {"fixed-output-files", 0, &fixed_outfiles, 1},
45: {"help", 0, 0, 'h'},
46: {"name-prefix", 1, 0, 'a'},
47: {"no-lines", 0, &nolinesflag, 1},
48: {"output", 1, 0, 'o'},
49: {"output-file", 1, 0, 'o'},
50: {"verbose", 0, &verboseflag, 1},
51: {"version", 0, 0, 'V'},
52: {"yacc", 0, &fixed_outfiles, 1},
53: {0, 0, 0, 0}
54: };
55:
56: void
57: usage (stream)
58: FILE *stream;
59: {
60: fprintf (stream, "\
61: Usage: %s [-dhltvyV] [-b file-prefix] [-o outfile] [-p name-prefix]\n\
62: [--debug] [--defines] [--fixed-output-files] [--no-lines]\n\
63: [--verbose] [--version] [--help] [--yacc]\n\
64: [--file-prefix=prefix] [--name-prefix=prefix]\n\
65: [--output=outfile] grammar-file\n",
66: program_name);
67: }
68:
69: void
70: getargs(argc, argv)
71: int argc;
72: char *argv[];
73: {
74: register int c;
75:
76: verboseflag = 0;
77: definesflag = 0;
78: debugflag = 0;
79: fixed_outfiles = 0;
80:
81: while ((c = getopt_long (argc, argv, "yvdhltVo:b:p:", longopts, (int *)0))
82: != EOF)
83: {
84: switch (c)
85: {
86: case 0:
87: /* Certain long options cause getopt_long to return 0. */
88: break;
89:
90: case 'y':
91: fixed_outfiles = 1;
92: break;
93:
94: case 'h':
95: usage (stdout);
96: exit (0);
97:
98: case 'V':
99: printf ("%s", version_string);
100: exit (0);
101:
102: case 'v':
103: verboseflag = 1;
104: break;
105:
106: case 'd':
107: definesflag = 1;
108: break;
109:
110: case 'l':
111: nolinesflag = 1;
112: break;
113:
114: case 't':
115: debugflag = 1;
116: break;
117:
118: case 'o':
119: spec_outfile = optarg;
120: break;
121:
122: case 'b':
123: spec_file_prefix = optarg;
124: break;
125:
126: case 'p':
127: spec_name_prefix = optarg;
128: break;
129:
130: default:
131: usage (stderr);
132: exit (1);
133: }
134: }
135:
136: if (optind == argc)
137: {
138: fprintf(stderr, "%s: no grammar file given\n", program_name);
139: exit(1);
140: }
141: if (optind < argc - 1)
142: fprintf(stderr, "%s: warning: extra arguments ignored\n", program_name);
143:
144: infile = argv[optind];
145: }
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