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Diffstat (limited to 'contrib/texinfo/util/deref.c')
| -rw-r--r-- | contrib/texinfo/util/deref.c | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/contrib/texinfo/util/deref.c b/contrib/texinfo/util/deref.c deleted file mode 100644 index c15bc1abcf15..000000000000 --- a/contrib/texinfo/util/deref.c +++ /dev/null @@ -1,238 +0,0 @@ -/* - * deref.c - - * compile command: gcc -g -o deref deref.c - - * execute command: deref filename.texi > newfile.texi - - * To: bob@gnu.ai.mit.edu - * Subject: another tool - * Date: 18 Dec 91 16:03:13 EST (Wed) - * From: gatech!skeeve!arnold@eddie.mit.edu (Arnold D. Robbins) - * - * Here is deref.c. It turns texinfo cross references back into the - * one argument form. It has the same limitations as fixref; one xref per - * line and can't cross lines. You can use it to find references that do - * cross a line boundary this way: - * - * deref < manual > /dev/null 2>errs - * - * (This assumes bash or /bin/sh.) The file errs will have list of lines - * where deref could not find matching braces. - * - * A gawk manual processed by deref goes through makeinfo without complaint. - * Compile with gcc and you should be set. - * - * Enjoy, - * - * Arnold - * ----------- - */ - -/* - * deref.c - * - * Make all texinfo references into the one argument form. - * - * Arnold Robbins - * arnold@skeeve.atl.ga.us - * December, 1991 - * - * Copyright, 1991, Arnold Robbins - */ - -/* - * 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 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; -} |