117 lines
2.1 KiB
C
117 lines
2.1 KiB
C
/* This translates ps fonts in .pfb format to ASCII ps files. */
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#ifndef lint
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static char rcsid[] = "$Id: pfbtops.c,v 1.2 1993/08/02 17:44:39 mycroft Exp $";
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#endif /* not lint */
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#include <stdio.h>
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/* Binary bytes per output line. */
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#define BYTES_PER_LINE (79/2)
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#define HEX_DIGITS "0123456789ABCDEF"
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static char *program_name;
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static void error(s)
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char *s;
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{
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fprintf(stderr, "%s: %s\n", program_name, s);
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exit(2);
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}
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static void usage()
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{
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fprintf(stderr, "usage: %s [-v] [pfb_file]\n", program_name);
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exit(1);
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}
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int main(argc, argv)
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int argc;
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char **argv;
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{
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int opt;
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extern int optind;
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program_name = argv[0];
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while ((opt = getopt(argc, argv, "v")) != EOF) {
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switch (opt) {
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case 'v':
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{
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extern char *version_string;
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fprintf(stderr, "pfbtops groff version %s\n", version_string);
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fflush(stderr);
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break;
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}
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case '?':
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usage();
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}
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}
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if (argc - optind > 1)
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usage();
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if (argc > optind && !freopen(argv[optind], "r", stdin))
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{
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perror(argv[optind]);
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exit(1);
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}
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for (;;)
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{
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int type, c, i;
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long n;
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c = getchar();
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if (c != 0x80)
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error("first byte of packet not 0x80");
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type = getchar();
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if (type == 3)
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break;
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if (type != 1 && type != 2)
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error("bad packet type");
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n = 0;
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for (i = 0; i < 4; i++)
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{
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c = getchar();
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if (c == EOF)
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error("end of file in packet header");
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n |= (long)c << (i << 3);
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}
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if (n < 0)
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error("negative packet length");
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if (type == 1)
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{
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while (--n >= 0)
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{
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c = getchar();
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if (c == EOF)
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error("end of file in text packet");
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if (c == '\r')
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c = '\n';
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putchar(c);
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}
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if (c != '\n')
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putchar('\n');
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}
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else
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{
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int count = 0;
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while (--n >= 0)
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{
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c = getchar();
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if (c == EOF)
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error("end of file in binary packet");
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if (count >= BYTES_PER_LINE)
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{
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putchar('\n');
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count = 0;
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}
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count++;
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putchar(HEX_DIGITS[(c >> 4) & 0xf]);
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putchar(HEX_DIGITS[c & 0xf]);
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}
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putchar('\n');
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}
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}
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exit(0);
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}
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