version 1.17, 2017/01/09 17:49:58 |
version 1.24, 2019/07/22 03:21:50 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2015, 2016 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2015, 2016, 2018, 2019 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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#include <sys/types.h> |
#include <sys/types.h> |
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#include <errno.h> |
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#include <limits.h> |
#include <signal.h> |
#include <signal.h> |
#include <stddef.h> |
#include <stddef.h> |
#include <stdint.h> |
#include <stdint.h> |
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#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
#include "mandoc_ohash.h" |
#include "mandoc_ohash.h" |
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#include "mandoc.h" |
#include "tag.h" |
#include "tag.h" |
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struct tag_entry { |
struct tag_entry { |
Line 38 struct tag_entry { |
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Line 41 struct tag_entry { |
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char s[]; |
char s[]; |
}; |
}; |
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static void tag_signal(int) __attribute__((noreturn)); |
static void tag_signal(int) __attribute__((__noreturn__)); |
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static struct ohash tag_data; |
static struct ohash tag_data; |
static struct tag_files tag_files; |
static struct tag_files tag_files; |
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/* Save the original standard output for use by the pager. */ |
/* Save the original standard output for use by the pager. */ |
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if ((tag_files.ofd = dup(STDOUT_FILENO)) == -1) |
if ((tag_files.ofd = dup(STDOUT_FILENO)) == -1) { |
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mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno)); |
goto fail; |
goto fail; |
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} |
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/* Create both temporary output files. */ |
/* Create both temporary output files. */ |
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sizeof(tag_files.ofn)); |
sizeof(tag_files.ofn)); |
(void)strlcpy(tag_files.tfn, "/tmp/man.XXXXXXXXXX", |
(void)strlcpy(tag_files.tfn, "/tmp/man.XXXXXXXXXX", |
sizeof(tag_files.tfn)); |
sizeof(tag_files.tfn)); |
if ((ofd = mkstemp(tag_files.ofn)) == -1) |
if ((ofd = mkstemp(tag_files.ofn)) == -1) { |
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mandoc_msg(MANDOCERR_MKSTEMP, 0, 0, |
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"%s: %s", tag_files.ofn, strerror(errno)); |
goto fail; |
goto fail; |
if ((tag_files.tfd = mkstemp(tag_files.tfn)) == -1) |
} |
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if ((tag_files.tfd = mkstemp(tag_files.tfn)) == -1) { |
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mandoc_msg(MANDOCERR_MKSTEMP, 0, 0, |
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"%s: %s", tag_files.tfn, strerror(errno)); |
goto fail; |
goto fail; |
if (dup2(ofd, STDOUT_FILENO) == -1) |
} |
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if (dup2(ofd, STDOUT_FILENO) == -1) { |
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mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno)); |
goto fail; |
goto fail; |
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} |
close(ofd); |
close(ofd); |
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/* |
/* |
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/* |
/* |
* Set the line number where a term is defined, |
* Set the line number where a term is defined, |
* unless it is already defined at a higher priority. |
* unless it is already defined at a lower priority. |
*/ |
*/ |
void |
void |
tag_put(const char *s, int prio, size_t line) |
tag_put(const char *s, int prio, size_t line) |
{ |
{ |
struct tag_entry *entry; |
struct tag_entry *entry; |
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const char *se; |
size_t len; |
size_t len; |
unsigned int slot; |
unsigned int slot; |
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/* Sanity checks. */ |
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if (tag_files.tfd <= 0) |
if (tag_files.tfd <= 0) |
return; |
return; |
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if (s[0] == '\\' && (s[1] == '&' || s[1] == 'e')) |
if (s[0] == '\\' && (s[1] == '&' || s[1] == 'e')) |
s += 2; |
s += 2; |
if (*s == '\0' || strchr(s, ' ') != NULL) |
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/* |
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* Skip whitespace and escapes and whatever follows, |
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* and if there is any, downgrade the priority. |
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*/ |
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len = strcspn(s, " \t\\"); |
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if (len == 0) |
return; |
return; |
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slot = ohash_qlookup(&tag_data, s); |
se = s + len; |
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if (*se != '\0') |
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prio = INT_MAX; |
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slot = ohash_qlookupi(&tag_data, s, &se); |
entry = ohash_find(&tag_data, slot); |
entry = ohash_find(&tag_data, slot); |
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if (entry == NULL) { |
if (entry == NULL) { |
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/* Build a new entry. */ |
/* Build a new entry. */ |
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len = strlen(s) + 1; |
entry = mandoc_malloc(sizeof(*entry) + len + 1); |
entry = mandoc_malloc(sizeof(*entry) + len); |
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memcpy(entry->s, s, len); |
memcpy(entry->s, s, len); |
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entry->s[len] = '\0'; |
entry->lines = NULL; |
entry->lines = NULL; |
entry->maxlines = entry->nlines = 0; |
entry->maxlines = entry->nlines = 0; |
ohash_insert(&tag_data, slot, entry); |
ohash_insert(&tag_data, slot, entry); |
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} else { |
} else { |
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/* Handle priority 0 entries. */ |
/* |
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* Lower priority numbers take precedence, |
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* but 0 is special. |
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* A tag with priority 0 is only used |
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* if the tag occurs exactly once. |
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*/ |
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if (prio == 0) { |
if (prio == 0) { |
if (entry->prio == 0) |
if (entry->prio == 0) |
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struct tag_entry *entry; |
struct tag_entry *entry; |
size_t i; |
size_t i; |
unsigned int slot; |
unsigned int slot; |
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int empty; |
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if (tag_files.tfd <= 0) |
if (tag_files.tfd <= 0) |
return; |
return; |
stream = fdopen(tag_files.tfd, "w"); |
if (tag_files.tagname != NULL && ohash_find(&tag_data, |
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ohash_qlookup(&tag_data, tag_files.tagname)) == NULL) { |
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mandoc_msg(MANDOCERR_TAG, 0, 0, "%s", tag_files.tagname); |
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tag_files.tagname = NULL; |
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} |
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if ((stream = fdopen(tag_files.tfd, "w")) == NULL) |
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mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno)); |
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empty = 1; |
entry = ohash_first(&tag_data, &slot); |
entry = ohash_first(&tag_data, &slot); |
while (entry != NULL) { |
while (entry != NULL) { |
if (stream != NULL && entry->prio >= 0) |
if (stream != NULL && entry->prio >= 0) { |
for (i = 0; i < entry->nlines; i++) |
for (i = 0; i < entry->nlines; i++) { |
fprintf(stream, "%s %s %zu\n", |
fprintf(stream, "%s %s %zu\n", |
entry->s, tag_files.ofn, entry->lines[i]); |
entry->s, tag_files.ofn, entry->lines[i]); |
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empty = 0; |
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} |
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} |
free(entry->lines); |
free(entry->lines); |
free(entry); |
free(entry); |
entry = ohash_next(&tag_data, &slot); |
entry = ohash_next(&tag_data, &slot); |
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ohash_delete(&tag_data); |
ohash_delete(&tag_data); |
if (stream != NULL) |
if (stream != NULL) |
fclose(stream); |
fclose(stream); |
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else |
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close(tag_files.tfd); |
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tag_files.tfd = -1; |
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if (empty) { |
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unlink(tag_files.tfn); |
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*tag_files.tfn = '\0'; |
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} |
} |
} |
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void |
void |