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Clean up some mess in lwbasic directory
author lost@l-w.ca
date Thu, 22 Dec 2011 18:03:38 -0700
parents lwbasic/main.c@bcd532a90e53
children
comparison
equal deleted inserted replaced
184:6433cb024174 185:cca933d32298
1 /*
2 main.c
3
4 Copyright © 2011 William Astle
5
6 This file is part of LWTOOLS.
7
8 LWTOOLS is free software: you can redistribute it and/or modify it under the
9 terms of the GNU General Public License as published by the Free Software
10 Foundation, either version 3 of the License, or (at your option) any later
11 version.
12
13 This program is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 more details.
17
18 You should have received a copy of the GNU General Public License along with
19 this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 /*
23 main program startup handling for lwbasic
24 */
25
26 #include <stdlib.h>
27 #include <stdio.h>
28 #include <stdarg.h>
29
30 #include <lw_cmdline.h>
31 #include <lw_string.h>
32 #include <lw_alloc.h>
33
34 #define __main_c_seen__
35 #include "lwbasic.h"
36
37 #define PROGVER "lwbasic from " PACKAGE_STRING
38
39 static struct lw_cmdline_options options[] =
40 {
41 { "output", 'o', "FILE", 0, "Output to FILE"},
42 { "debug", 'd', "LEVEL", lw_cmdline_opt_optional, "Set debug mode"},
43 { 0 }
44 };
45
46 static int parse_opts(int key, char *arg, void *data)
47 {
48 cstate *state = data;
49
50 switch (key)
51 {
52 case 'o':
53 if (state -> output_file)
54 lw_free(state -> output_file);
55 state -> output_file = lw_strdup(arg);
56 break;
57
58 case 'd':
59 if (!arg)
60 state -> debug_level = 50;
61 else
62 state -> debug_level = atoi(arg);
63 break;
64
65 case lw_cmdline_key_end:
66 return 0;
67
68 case lw_cmdline_key_arg:
69 if (state -> input_file)
70 {
71 fprintf(stderr, "Already have an input file; ignoring %s\n", arg);
72 }
73 else
74 {
75 state -> input_file = lw_strdup(arg);
76 }
77 break;
78
79 default:
80 return lw_cmdline_err_unknown;
81 }
82
83 return 0;
84 }
85
86 static struct lw_cmdline_parser cmdline_parser =
87 {
88 options,
89 parse_opts,
90 "INPUTFILE",
91 "lwbasic, a compiler for a dialect of Basic\vPlease report bugs to lost@l-w.ca.",
92 PROGVER
93 };
94
95 extern void parser(cstate *state);
96
97 int main(int argc, char **argv)
98 {
99 cstate state = { 0 };
100
101 lw_cmdline_parse(&cmdline_parser, argc, argv, 0, 0, &state);
102
103 parser(&state);
104
105 exit(0);
106 }
107
108 void lwb_error(const char *fmt, ...)
109 {
110 va_list args;
111
112 va_start(args, fmt);
113 vfprintf(stderr, fmt, args);
114 va_end(args);
115
116 exit(1);
117 }