diff options
Diffstat (limited to 'util/deref.c')
| -rw-r--r-- | util/deref.c | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/util/deref.c b/util/deref.c deleted file mode 100644 index 98e8ce0..0000000 --- a/util/deref.c +++ /dev/null @@ -1,208 +0,0 @@ -/* - * deref.c - * - * Make all texinfo references into the one argument form. - * - * Arnold Robbins - * arnold@gnu.org - * Written: December, 1991 - * Released: November, 1998 - * - * Copyright 1991, 1998 Arnold David Robbins - * - * DEREF is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3 of the License, or - * (at your option) any later version. - * - * DEREF is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/* - * LIMITATIONS: - * One texinfo cross reference per line. - * Cross references may not cross newlines. - * Use of fgets for input (to be fixed). - */ - -#include <stdio.h> -#include <ctype.h> -#include <errno.h> - -/* for gcc on the 3B1, delete if this gives you grief */ -extern int fclose(FILE *fp); -extern int fprintf(FILE *fp, const char *str, ...); -/* extern int sprintf(char *str, const char *fmt, ...); */ -extern int fputs(char *buf, FILE *fp); - -extern char *strerror(int errno); -extern char *strchr(char *cp, int ch); -extern int strncmp(const char *s1, const char *s2, int count); - -extern int errno; - -void process(FILE *fp); -void repair(char *line, char *ref, int toffset); - -int Errs = 0; -char *Name = "stdin"; -int Line = 0; -char *Me; - -/* main --- handle arguments, global vars for errors */ - -int -main(int argc, char **argv) -{ - FILE *fp; - - Me = argv[0]; - - if (argc == 1) - process(stdin); - else - for (argc--, argv++; *argv != NULL; argc--, argv++) { - if (argv[0][0] == '-' && argv[0][1] == '\0') { - Name = "stdin"; - Line = 0; - process(stdin); - } else if ((fp = fopen(*argv, "r")) != NULL) { - Name = *argv; - Line = 0; - process(fp); - fclose(fp); - } else { - fprintf(stderr, "%s: can not open: %s\n", - *argv, strerror(errno)); - Errs++; - } - } - return Errs != 0; -} - -/* isref --- decide if we've seen a texinfo cross reference */ - -int -isref(char *cp) -{ - if (strncmp(cp, "@ref{", 5) == 0) - return 5; - if (strncmp(cp, "@xref{", 6) == 0) - return 6; - if (strncmp(cp, "@pxref{", 7) == 0) - return 7; - return 0; -} - -/* process --- read files, look for references, fix them up */ - -void -process(FILE *fp) -{ - char buf[BUFSIZ]; - char *cp; - int count; - - while (fgets(buf, sizeof buf, fp) != NULL) { - Line++; - cp = strchr(buf, '@'); - if (cp == NULL) { - fputs(buf, stdout); - continue; - } - do { - count = isref(cp); - if (count == 0) { - cp++; - cp = strchr(cp, '@'); - if (cp == NULL) { - fputs(buf, stdout); - goto next; - } - continue; - } - /* got one */ - repair(buf, cp, count); - break; - } while (cp != NULL); - next: ; - } -} - -/* repair --- turn all texinfo cross references into the one argument form */ - -void -repair(char *line, char *ref, int toffset) -{ - int braces = 1; /* have seen first left brace */ - char *cp; - - ref += toffset; - - /* output line up to and including left brace in reference */ - for (cp = line; cp <= ref; cp++) - putchar(*cp); - - /* output node name */ - for (; *cp && *cp != '}' && *cp != ',' && *cp != '\n'; cp++) - putchar(*cp); - - if (*cp != '}') { /* could have been one arg xref */ - /* skip to matching right brace */ - for (; braces > 0; cp++) { - switch (*cp) { - case '@': - cp++; /* blindly skip next character */ - break; - case '{': - braces++; - break; - case '}': - braces--; - break; - case '\n': - case '\0': - Errs++; - fprintf(stderr, - "%s: %s: %d: mismatched braces\n", - Me, Name, Line); - goto out; - default: - break; - } - } - out: - ; - } - - putchar('}'); - if (*cp == '}') - cp++; - - /* now the rest of the line */ - for (; *cp; cp++) - putchar(*cp); - return; -} - -/* strerror --- return error string, delete if in your library */ - -char * -strerror(int errno) -{ - static char buf[100]; - extern int sys_nerr; - extern char *sys_errlist[]; - - if (errno < sys_nerr && errno >= 0) - return sys_errlist[errno]; - - sprintf(buf, "unknown error %d", errno); - return buf; -} |