Report usage and exit if unrecognized command-line options given.
Chris Pressey
6 years ago
| 124 | 124 | |
| 125 | 125 | /********************************************************* PROTOTYPES */ |
| 126 | 126 | |
| 127 | void usage(char *); | |
| 127 | 128 | int main (int, char **); |
| 129 | ||
| 130 | /********************************************************** FUNCTIONS */ | |
| 131 | ||
| 132 | void usage(char *e) | |
| 133 | { | |
| 134 | printf ("USAGE : %s [-o] [-w width] [-h height] <befunge-source> <c-destination>\n", e); | |
| 135 | exit (1); | |
| 136 | } | |
| 128 | 137 | |
| 129 | 138 | /******************************************************* MAIN PROGRAM */ |
| 130 | 139 | |
| 145 | 154 | |
| 146 | 155 | printf ("Befunge-93 to ANSI C Compiler v1.0\n"); |
| 147 | 156 | |
| 148 | if (argc < 3) | |
| 149 | { | |
| 150 | printf ("USAGE : %s [-p] [-o] [-w width] [-h height] <befunge-source> <c-destination>\n", argv[0]); | |
| 151 | exit (0); | |
| 152 | } | |
| 157 | if (argc < 3) usage(argv[0]); | |
| 153 | 158 | for (i = 1; i < argc; i++) |
| 154 | 159 | { |
| 155 | if (!strcmp(argv[i], "-o")) { post_optimize = 0; } | |
| 156 | if (!strcmp(argv[i], "-w")) { linewidth = atoi(argv[i+1]); } | |
| 157 | if (!strcmp(argv[i], "-h")) { pageheight = atoi(argv[i+1]); } | |
| 160 | if (argv[i][0] == '-') | |
| 161 | { | |
| 162 | if (!strcmp(argv[i], "-o")) { post_optimize = 0; } | |
| 163 | else if (!strcmp(argv[i], "-w")) { linewidth = atoi(argv[i+1]); } | |
| 164 | else if (!strcmp(argv[i], "-h")) { pageheight = atoi(argv[i+1]); } | |
| 165 | else usage(argv[0]); | |
| 166 | } | |
| 158 | 167 | } |
| 159 | 168 | if ((fi = fopen (argv[argc - 2], "r")) != NULL) /*** Input Phase */ |
| 160 | 169 | { |