diff options
Diffstat (limited to 'contrib/texinfo/info/man.c')
| -rw-r--r-- | contrib/texinfo/info/man.c | 267 |
1 files changed, 129 insertions, 138 deletions
diff --git a/contrib/texinfo/info/man.c b/contrib/texinfo/info/man.c index b899ec1d273f..a6695950b30a 100644 --- a/contrib/texinfo/info/man.c +++ b/contrib/texinfo/info/man.c @@ -1,9 +1,7 @@ -/* man.c: How to read and format man files. */ +/* man.c: How to read and format man files. + $Id: man.c,v 1.6 1997/07/31 23:49:59 karl Exp $ -/* This file is part of GNU Info, a program for reading online documentation - stored in Info format. - - Copyright (C) 1995 Free Software Foundation, Inc. + Copyright (C) 1995, 97 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -23,7 +21,6 @@ #include "info.h" #include <sys/ioctl.h> -#include <sys/file.h> #include "signals.h" #if defined (HAVE_SYS_TIME_H) #include <sys/time.h> @@ -31,8 +28,8 @@ #if defined (HAVE_SYS_WAIT_H) #include <sys/wait.h> #endif -#include "tilde.h" +#include "tilde.h" #include "man.h" #if !defined (_POSIX_VERSION) @@ -75,31 +72,31 @@ get_manpage_node (file_buffer, pagename) page = get_manpage_contents (pagename); if (page) - { - char header[1024]; - long oldsize, newsize; - int hlen, plen; - - sprintf (header, "\n\n%c\n%s %s, %s %s, %s (dir)\n\n", - INFO_COOKIE, - INFO_FILE_LABEL, file_buffer->filename, - INFO_NODE_LABEL, pagename, - INFO_UP_LABEL); - oldsize = file_buffer->filesize; - hlen = strlen (header); - plen = strlen (page); - newsize = (oldsize + hlen + plen); - file_buffer->contents = - (char *)xrealloc (file_buffer->contents, 1 + newsize); - memcpy (file_buffer->contents + oldsize, header, hlen); - oldsize += hlen; - memcpy (file_buffer->contents + oldsize, page, plen); - file_buffer->contents[newsize] = '\0'; - file_buffer->filesize = newsize; - file_buffer->finfo.st_size = newsize; - build_tags_and_nodes (file_buffer); - free (page); - } + { + char header[1024]; + long oldsize, newsize; + int hlen, plen; + + sprintf (header, "\n\n%c\n%s %s, %s %s, %s (dir)\n\n", + INFO_COOKIE, + INFO_FILE_LABEL, file_buffer->filename, + INFO_NODE_LABEL, pagename, + INFO_UP_LABEL); + oldsize = file_buffer->filesize; + hlen = strlen (header); + plen = strlen (page); + newsize = (oldsize + hlen + plen); + file_buffer->contents = + (char *)xrealloc (file_buffer->contents, 1 + newsize); + memcpy (file_buffer->contents + oldsize, header, hlen); + oldsize += hlen; + memcpy (file_buffer->contents + oldsize, page, plen); + file_buffer->contents[newsize] = '\0'; + file_buffer->filesize = newsize; + file_buffer->finfo.st_size = newsize; + build_tags_and_nodes (file_buffer); + free (page); + } node = manpage_node_of_file_buffer (file_buffer, pagename); } @@ -110,12 +107,9 @@ get_manpage_node (file_buffer, pagename) FILE_BUFFER * create_manpage_file_buffer () { - FILE_BUFFER *file_buffer; - struct stat *finfo; - - file_buffer = make_file_buffer (); - file_buffer->filename = strdup (MANPAGE_FILE_BUFFER_NAME); - file_buffer->fullpath = strdup (MANPAGE_FILE_BUFFER_NAME); + FILE_BUFFER *file_buffer = make_file_buffer (); + file_buffer->filename = xstrdup (MANPAGE_FILE_BUFFER_NAME); + file_buffer->fullpath = xstrdup (MANPAGE_FILE_BUFFER_NAME); file_buffer->finfo.st_size = 0; file_buffer->filesize = 0; file_buffer->contents = (char *)NULL; @@ -137,25 +131,24 @@ executable_file_in_path (filename, path) dirname_index = 0; - while (temp_dirname = extract_colon_unit (path, &dirname_index)) + while ((temp_dirname = extract_colon_unit (path, &dirname_index))) { - register int i; char *temp; /* Expand a leading tilde if one is present. */ if (*temp_dirname == '~') - { - char *expanded_dirname; + { + char *expanded_dirname; - expanded_dirname = tilde_expand_word (temp_dirname); - free (temp_dirname); - temp_dirname = expanded_dirname; - } + expanded_dirname = tilde_expand_word (temp_dirname); + free (temp_dirname); + temp_dirname = expanded_dirname; + } temp = (char *)xmalloc (30 + strlen (temp_dirname) + strlen (filename)); strcpy (temp, temp_dirname); if (temp[(strlen (temp)) - 1] != '/') - strcat (temp, "/"); + strcat (temp, "/"); strcat (temp, filename); free (temp_dirname); @@ -164,10 +157,10 @@ executable_file_in_path (filename, path) /* If we have found a regular executable file, then use it. */ if ((statable) && (S_ISREG (finfo.st_mode)) && - (access (temp, X_OK) == 0)) - return (temp); + (access (temp, X_OK) == 0)) + return (temp); else - free (temp); + free (temp); } return ((char *)NULL); } @@ -221,7 +214,7 @@ static void reap_children (sig) int sig; { - unsigned int status; + int status; wait (&status); } @@ -233,7 +226,6 @@ get_manpage_contents (pagename) int pipes[2]; pid_t child; char *formatted_page = (char *)NULL; - char *section = (char *)NULL; int arg_index = 1; if (formatter_args[0] == (char *)NULL) @@ -265,7 +257,7 @@ get_manpage_contents (pagename) if (child != 0) { /* In the parent, close the writing end of the pipe, and read from - the exec'd child. */ + the exec'd child. */ close (pipes[1]); formatted_page = read_from_fd (pipes[0]); close (pipes[0]); @@ -273,16 +265,16 @@ get_manpage_contents (pagename) else { /* In the child, close the read end of the pipe, make the write end - of the pipe be stdout, and execute the man page formatter. */ + of the pipe be stdout, and execute the man page formatter. */ close (pipes[0]); close (fileno (stderr)); - close (fileno (stdin)); /* Don't print errors. */ + close (fileno (stdin)); /* Don't print errors. */ dup2 (pipes[1], fileno (stdout)); execv (formatter_args[0], formatter_args); /* If we get here, we couldn't exec, so close out the pipe and - exit. */ + exit. */ close (pipes[1]); exit (0); } @@ -304,21 +296,21 @@ clean_manpage (manpage) newpage = (char *)xmalloc (1 + strlen (manpage)); - for (i = 0, j = 0; newpage[j] = manpage[i]; i++, j++) + for (i = 0, j = 0; (newpage[j] = manpage[i]); i++, j++) { if (manpage[i] == '\n') - newline_count++; + newline_count++; else - newline_count = 0; + newline_count = 0; if (newline_count == 3) - { - j--; - newline_count--; - } + { + j--; + newline_count--; + } if (manpage[i] == '\b' || manpage[i] == '\f') - j -= 2; + j -= 2; } newpage[j++] = '\0'; @@ -339,11 +331,11 @@ manpage_node_of_file_buffer (file_buffer, pagename) { register int i; - for (i = 0; tag = file_buffer->tags[i]; i++) - { - if (strcasecmp (pagename, tag->nodename) == 0) - break; - } + for (i = 0; (tag = file_buffer->tags[i]); i++) + { + if (strcasecmp (pagename, tag->nodename) == 0) + break; + } } if (tag) @@ -459,7 +451,7 @@ find_reference_section (node) { position = search_forward (reference_section_starters[i], &frs_binding); if (position != -1) - break; + break; } if (position == -1) @@ -473,11 +465,11 @@ find_reference_section (node) for (i = frs_binding.start; i < frs_binding.end - 2; i++) { if ((frs_binding.buffer[i] == '\n') && - (!whitespace (frs_binding.buffer[i + 1]))) - { - frs_binding.end = i; - break; - } + (!whitespace (frs_binding.buffer[i + 1]))) + { + frs_binding.end = i; + break; + } } return (&frs_binding); @@ -508,43 +500,43 @@ xrefs_of_manpage (node) register int start, end; for (start = position; start > reference_section->start; start--) - if (whitespace (reference_section->buffer[start])) - break; + if (whitespace (reference_section->buffer[start])) + break; start++; for (end = position; end < reference_section->end; end++) - { - if (whitespace (reference_section->buffer[end])) - { - end = start; - break; - } - - if (reference_section->buffer[end] == ')') - { - end++; - break; - } - } + { + if (whitespace (reference_section->buffer[end])) + { + end = start; + break; + } + + if (reference_section->buffer[end] == ')') + { + end++; + break; + } + } if (end != start) - { - REFERENCE *entry; - int len = end - start; - - entry = (REFERENCE *)xmalloc (sizeof (REFERENCE)); - entry->label = (char *)xmalloc (1 + len); - strncpy (entry->label, (reference_section->buffer) + start, len); - entry->label[len] = '\0'; - entry->filename = strdup (node->filename); - entry->nodename = strdup (entry->label); - entry->start = start; - entry->end = end; - - add_pointer_to_array - (entry, refs_index, refs, refs_slots, 10, REFERENCE *); - } + { + REFERENCE *entry; + int len = end - start; + + entry = (REFERENCE *)xmalloc (sizeof (REFERENCE)); + entry->label = (char *)xmalloc (1 + len); + strncpy (entry->label, (reference_section->buffer) + start, len); + entry->label[len] = '\0'; + entry->filename = xstrdup (node->filename); + entry->nodename = xstrdup (entry->label); + entry->start = start; + entry->end = end; + + add_pointer_to_array + (entry, refs_index, refs, refs_slots, 10, REFERENCE *); + } reference_section->start = position + 1; } @@ -558,7 +550,6 @@ locate_manpage_xref (node, start, dir) long start; int dir; { - register int i, count; REFERENCE **refs; long position = -1; @@ -573,27 +564,27 @@ locate_manpage_xref (node, start, dir) count = i; if (dir > 0) - { - for (i = 0; entry = refs[i]; i++) - if (entry->start > start) - { - position = entry->start; - break; - } - } + { + for (i = 0; (entry = refs[i]); i++) + if (entry->start > start) + { + position = entry->start; + break; + } + } else - { - for (i = count - 1; i > -1; i--) - { - entry = refs[i]; - - if (entry->start < start) - { - position = entry->start; - break; - } - } - } + { + for (i = count - 1; i > -1; i--) + { + entry = refs[i]; + + if (entry->start < start) + { + position = entry->start; + break; + } + } + } info_free_references (refs); } @@ -622,20 +613,20 @@ manpage_xrefs_in_binding (node, binding) start = binding->start + (binding->buffer - node->contents); end = binding->end + (binding->buffer - node->contents); - for (i = 0; entry = all_refs[i]; i++) + for (i = 0; (entry = all_refs[i]); i++) { if ((entry->start > start) && (entry->end < end)) - { - add_pointer_to_array - (entry, brefs_index, brefs, brefs_slots, 10, REFERENCE *); - } + { + add_pointer_to_array + (entry, brefs_index, brefs, brefs_slots, 10, REFERENCE *); + } else - { - maybe_free (entry->label); - maybe_free (entry->filename); - maybe_free (entry->nodename); - free (entry); - } + { + maybe_free (entry->label); + maybe_free (entry->filename); + maybe_free (entry->nodename); + free (entry); + } } free (all_refs); |