version 1.14, 2010/05/15 06:48:13 |
version 1.38, 2011/03/15 03:03:54 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
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* Copyright (c) 2011 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 |
* copyright notice and this permission notice appear in all copies. |
* copyright notice and this permission notice appear in all copies. |
* |
* |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|
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#include <string.h> |
#include <string.h> |
#include <time.h> |
#include <time.h> |
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#include "mandoc.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
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static int a2time(time_t *, const char *, const char *); |
#define DATESIZE 32 |
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static int a2time(time_t *, const char *, const char *); |
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static char *time2a(time_t); |
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int |
int |
mandoc_special(const char *p) |
mandoc_special(char *p) |
{ |
{ |
int terminator; /* Terminator for \s. */ |
int len, i; |
int lim; /* Limit for N in \s. */ |
char term; |
int c, i; |
char *sv; |
|
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if ('\\' != *p++) |
len = 0; |
return(0); |
term = '\0'; |
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sv = p; |
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switch (*p) { |
assert('\\' == *p); |
case ('\''): |
p++; |
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switch (*p++) { |
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#if 0 |
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case ('Z'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('`'): |
case ('X'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('q'): |
case ('x'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('-'): |
case ('S'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('~'): |
case ('R'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('^'): |
case ('N'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('%'): |
case ('l'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('0'): |
case ('L'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (' '): |
case ('H'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('|'): |
case ('h'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('&'): |
case ('D'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('.'): |
case ('C'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (':'): |
case ('b'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('c'): |
case ('B'): |
return(2); |
/* FALLTHROUGH */ |
case ('e'): |
case ('a'): |
return(2); |
/* FALLTHROUGH */ |
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case ('A'): |
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if (*p++ != '\'') |
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return(0); |
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term = '\''; |
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break; |
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#endif |
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case ('h'): |
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/* FALLTHROUGH */ |
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case ('v'): |
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/* FALLTHROUGH */ |
case ('s'): |
case ('s'): |
if ('\0' == *++p) |
if (ASCII_HYPH == *p) |
return(2); |
*p = '-'; |
|
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c = 2; |
i = 0; |
terminator = 0; |
if ('+' == *p || '-' == *p) { |
lim = 1; |
p++; |
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i = 1; |
if (*p == '\'') { |
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lim = 0; |
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terminator = 1; |
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++p; |
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++c; |
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} else if (*p == '[') { |
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lim = 0; |
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terminator = 2; |
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++p; |
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++c; |
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} else if (*p == '(') { |
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lim = 2; |
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terminator = 3; |
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++p; |
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++c; |
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} |
} |
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if (*p == '+' || *p == '-') { |
switch (*p++) { |
++p; |
case ('('): |
++c; |
len = 2; |
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break; |
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case ('['): |
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term = ']'; |
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break; |
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case ('\''): |
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term = '\''; |
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break; |
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case ('0'): |
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i = 1; |
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/* FALLTHROUGH */ |
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default: |
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len = 1; |
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p--; |
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break; |
} |
} |
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if (*p == '\'') { |
if (ASCII_HYPH == *p) |
if (terminator) |
*p = '-'; |
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if ('+' == *p || '-' == *p) { |
|
if (i) |
return(0); |
return(0); |
lim = 0; |
p++; |
terminator = 1; |
} |
++p; |
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++c; |
/* Handle embedded numerical subexp or escape. */ |
} else if (*p == '[') { |
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if (terminator) |
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return(0); |
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lim = 0; |
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terminator = 2; |
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++p; |
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++c; |
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} else if (*p == '(') { |
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if (terminator) |
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return(0); |
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lim = 2; |
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terminator = 3; |
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++p; |
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++c; |
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} |
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/* TODO: needs to handle floating point. */ |
if ('(' == *p) { |
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while (*p && ')' != *p) |
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if ('\\' == *p++) { |
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i = mandoc_special(--p); |
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if (0 == i) |
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return(0); |
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p += i; |
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} |
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if ( ! isdigit((u_char)*p)) |
if (')' == *p++) |
return(0); |
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for (i = 0; isdigit((u_char)*p); i++) { |
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if (lim && i >= lim) |
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break; |
break; |
++p; |
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++c; |
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} |
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if (terminator && terminator < 3) { |
return(0); |
if (1 == terminator && *p != '\'') |
} else if ('\\' == *p) { |
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if (0 == (i = mandoc_special(p))) |
return(0); |
return(0); |
if (2 == terminator && *p != ']') |
p += i; |
return(0); |
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++p; |
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++c; |
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} |
} |
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return(c); |
break; |
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#if 0 |
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case ('Y'): |
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/* FALLTHROUGH */ |
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case ('V'): |
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/* FALLTHROUGH */ |
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case ('$'): |
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/* FALLTHROUGH */ |
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case ('n'): |
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/* FALLTHROUGH */ |
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#endif |
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case ('k'): |
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/* FALLTHROUGH */ |
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case ('M'): |
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/* FALLTHROUGH */ |
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case ('m'): |
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/* FALLTHROUGH */ |
case ('f'): |
case ('f'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('F'): |
case ('F'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('*'): |
case ('*'): |
if (0 == *++p || ! isgraph((u_char)*p)) |
switch (*p++) { |
return(0); |
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switch (*p) { |
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case ('('): |
case ('('): |
if (0 == *++p || ! isgraph((u_char)*p)) |
len = 2; |
return(0); |
break; |
return(4); |
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case ('['): |
case ('['): |
for (c = 3, p++; *p && ']' != *p; p++, c++) |
term = ']'; |
if ( ! isgraph((u_char)*p)) |
break; |
break; |
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return(*p == ']' ? c : 0); |
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default: |
default: |
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len = 1; |
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p--; |
break; |
break; |
} |
} |
return(3); |
break; |
case ('('): |
case ('('): |
if (0 == *++p || ! isgraph((u_char)*p)) |
len = 2; |
return(0); |
break; |
if (0 == *++p || ! isgraph((u_char)*p)) |
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return(0); |
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return(4); |
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case ('['): |
case ('['): |
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term = ']'; |
break; |
break; |
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case ('z'): |
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len = 1; |
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if ('\\' == *p) { |
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if (0 == (i = mandoc_special(p))) |
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return(0); |
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p += i; |
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return(*p ? (int)(p - sv) : 0); |
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} |
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break; |
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case ('o'): |
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/* FALLTHROUGH */ |
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case ('w'): |
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if ('\'' == *p++) { |
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term = '\''; |
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break; |
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} |
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/* FALLTHROUGH */ |
default: |
default: |
return(0); |
len = 1; |
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p--; |
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break; |
} |
} |
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for (c = 3, p++; *p && ']' != *p; p++, c++) |
if (term) { |
if ( ! isgraph((u_char)*p)) |
for ( ; *p && term != *p; p++) |
break; |
if (ASCII_HYPH == *p) |
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*p = '-'; |
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return(*p ? (int)(p - sv) : 0); |
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} |
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return(*p == ']' ? c : 0); |
for (i = 0; *p && i < len; i++, p++) |
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if (ASCII_HYPH == *p) |
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*p = '-'; |
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return(i == len ? (int)(p - sv) : 0); |
} |
} |
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Line 197 mandoc_calloc(size_t num, size_t size) |
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Line 236 mandoc_calloc(size_t num, size_t size) |
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ptr = calloc(num, size); |
ptr = calloc(num, size); |
if (NULL == ptr) { |
if (NULL == ptr) { |
perror(NULL); |
perror(NULL); |
exit(EXIT_FAILURE); |
exit((int)MANDOCLEVEL_SYSERR); |
} |
} |
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return(ptr); |
return(ptr); |
Line 212 mandoc_malloc(size_t size) |
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Line 251 mandoc_malloc(size_t size) |
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ptr = malloc(size); |
ptr = malloc(size); |
if (NULL == ptr) { |
if (NULL == ptr) { |
perror(NULL); |
perror(NULL); |
exit(EXIT_FAILURE); |
exit((int)MANDOCLEVEL_SYSERR); |
} |
} |
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return(ptr); |
return(ptr); |
Line 226 mandoc_realloc(void *ptr, size_t size) |
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Line 265 mandoc_realloc(void *ptr, size_t size) |
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ptr = realloc(ptr, size); |
ptr = realloc(ptr, size); |
if (NULL == ptr) { |
if (NULL == ptr) { |
perror(NULL); |
perror(NULL); |
exit(EXIT_FAILURE); |
exit((int)MANDOCLEVEL_SYSERR); |
} |
} |
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return(ptr); |
return(ptr); |
Line 241 mandoc_strdup(const char *ptr) |
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Line 280 mandoc_strdup(const char *ptr) |
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p = strdup(ptr); |
p = strdup(ptr); |
if (NULL == p) { |
if (NULL == p) { |
perror(NULL); |
perror(NULL); |
exit(EXIT_FAILURE); |
exit((int)MANDOCLEVEL_SYSERR); |
} |
} |
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return(p); |
return(p); |
} |
} |
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/* |
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* Parse a quoted or unquoted roff-style request or macro argument. |
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* Return a pointer to the parsed argument, which is either the original |
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* pointer or advanced by one byte in case the argument is quoted. |
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* Null-terminate the argument in place. |
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* Collapse pairs of quotes inside quoted arguments. |
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* Advance the argument pointer to the next argument, |
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* or to the null byte terminating the argument line. |
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*/ |
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char * |
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mandoc_getarg(char **cpp, mandocmsg msg, void *data, int ln, int *pos) |
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{ |
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char *start, *cp; |
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int quoted, pairs, white; |
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/* Quoting can only start with a new word. */ |
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start = *cpp; |
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if ('"' == *start) { |
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quoted = 1; |
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start++; |
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} else |
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quoted = 0; |
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pairs = 0; |
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white = 0; |
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for (cp = start; '\0' != *cp; cp++) { |
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/* Move left after quoted quotes and escaped backslashes. */ |
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if (pairs) |
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cp[-pairs] = cp[0]; |
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if ('\\' == cp[0]) { |
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if ('\\' == cp[1]) { |
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/* Poor man's copy mode. */ |
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pairs++; |
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cp++; |
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} else if (0 == quoted && ' ' == cp[1]) |
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/* Skip escaped blanks. */ |
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cp++; |
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} else if (0 == quoted) { |
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if (' ' == cp[0]) { |
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/* Unescaped blanks end unquoted args. */ |
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white = 1; |
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break; |
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} |
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} else if ('"' == cp[0]) { |
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if ('"' == cp[1]) { |
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/* Quoted quotes collapse. */ |
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pairs++; |
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cp++; |
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} else { |
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/* Unquoted quotes end quoted args. */ |
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quoted = 2; |
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break; |
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} |
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} |
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} |
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/* Quoted argument without a closing quote. */ |
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if (1 == quoted && msg) |
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(*msg)(MANDOCERR_BADQUOTE, data, ln, *pos, NULL); |
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/* Null-terminate this argument and move to the next one. */ |
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if (pairs) |
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cp[-pairs] = '\0'; |
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if ('\0' != *cp) { |
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*cp++ = '\0'; |
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while (' ' == *cp) |
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cp++; |
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} |
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*pos += (cp - start) + (quoted ? 1 : 0); |
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*cpp = cp; |
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if ('\0' == *cp && msg && (white || ' ' == cp[-1])) |
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(*msg)(MANDOCERR_EOLNSPACE, data, ln, *pos, NULL); |
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return(start); |
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} |
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static int |
static int |
a2time(time_t *t, const char *fmt, const char *p) |
a2time(time_t *t, const char *fmt, const char *p) |
{ |
{ |
Line 266 a2time(time_t *t, const char *fmt, const char *p) |
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Line 382 a2time(time_t *t, const char *fmt, const char *p) |
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} |
} |
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/* |
static char * |
* Convert from a manual date string (see mdoc(7) and man(7)) into a |
time2a(time_t t) |
* date according to the stipulated date type. |
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*/ |
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time_t |
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mandoc_a2time(int flags, const char *p) |
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{ |
{ |
time_t t; |
struct tm tm; |
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char *buf, *p; |
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size_t ssz; |
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int isz; |
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if (MTIME_MDOCDATE & flags) { |
localtime_r(&t, &tm); |
if (0 == strcmp(p, "$" "Mdocdate$")) |
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return(time(NULL)); |
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if (a2time(&t, "$" "Mdocdate: %b %d %Y $", p)) |
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return(t); |
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} |
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if (MTIME_CANONICAL & flags || MTIME_REDUCED & flags) |
/* |
if (a2time(&t, "%b %d, %Y", p)) |
* Reserve space: |
return(t); |
* up to 9 characters for the month (September) + blank |
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* up to 2 characters for the day + comma + blank |
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* 4 characters for the year and a terminating '\0' |
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*/ |
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p = buf = mandoc_malloc(10 + 4 + 4 + 1); |
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if (MTIME_ISO_8601 & flags) |
if (0 == (ssz = strftime(p, 10 + 1, "%B ", &tm))) |
if (a2time(&t, "%Y-%m-%d", p)) |
goto fail; |
return(t); |
p += (int)ssz; |
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if (MTIME_REDUCED & flags) { |
if (-1 == (isz = snprintf(p, 4 + 1, "%d, ", tm.tm_mday))) |
if (a2time(&t, "%d, %Y", p)) |
goto fail; |
return(t); |
p += isz; |
if (a2time(&t, "%Y", p)) |
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return(t); |
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} |
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return(0); |
if (0 == strftime(p, 4 + 1, "%Y", &tm)) |
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goto fail; |
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return(buf); |
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fail: |
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free(buf); |
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return(NULL); |
} |
} |
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char * |
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mandoc_normdate(char *in, mandocmsg msg, void *data, int ln, int pos) |
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{ |
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char *out; |
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time_t t; |
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if (NULL == in || '\0' == *in || |
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0 == strcmp(in, "$" "Mdocdate$")) { |
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(*msg)(MANDOCERR_NODATE, data, ln, pos, NULL); |
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time(&t); |
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} |
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else if (!a2time(&t, "$" "Mdocdate: %b %d %Y $", in) && |
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!a2time(&t, "%b %d, %Y", in) && |
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!a2time(&t, "%Y-%m-%d", in)) { |
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(*msg)(MANDOCERR_BADDATE, data, ln, pos, NULL); |
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t = 0; |
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} |
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out = t ? time2a(t) : NULL; |
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return(out ? out : mandoc_strdup(in)); |
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} |
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int |
int |
mandoc_eos(const char *p, size_t sz) |
mandoc_eos(const char *p, size_t sz, int enclosed) |
{ |
{ |
|
const char *q; |
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int found; |
|
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if (0 == sz) |
if (0 == sz) |
return(0); |
return(0); |
Line 314 mandoc_eos(const char *p, size_t sz) |
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Line 455 mandoc_eos(const char *p, size_t sz) |
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* propogate outward. |
* propogate outward. |
*/ |
*/ |
|
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for ( ; sz; sz--) { |
found = 0; |
switch (p[(int)sz - 1]) { |
for (q = p + (int)sz - 1; q >= p; q--) { |
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switch (*q) { |
case ('\"'): |
case ('\"'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('\''): |
case ('\''): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
|
case (']'): |
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/* FALLTHROUGH */ |
case (')'): |
case (')'): |
|
if (0 == found) |
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enclosed = 1; |
break; |
break; |
case ('.'): |
case ('.'): |
/* Escaped periods. */ |
|
if (sz > 1 && '\\' == p[(int)sz - 2]) |
|
return(0); |
|
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('!'): |
case ('!'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('?'): |
case ('?'): |
return(1); |
found = 1; |
|
break; |
default: |
default: |
return(0); |
return(found && (!enclosed || isalnum((unsigned char)*q))); |
} |
} |
} |
} |
|
|
return(0); |
return(found && !enclosed); |
|
} |
|
|
|
|
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int |
|
mandoc_hyph(const char *start, const char *c) |
|
{ |
|
|
|
/* |
|
* Choose whether to break at a hyphenated character. We only |
|
* do this if it's free-standing within a word. |
|
*/ |
|
|
|
/* Skip first/last character of buffer. */ |
|
if (c == start || '\0' == *(c + 1)) |
|
return(0); |
|
/* Skip first/last character of word. */ |
|
if ('\t' == *(c + 1) || '\t' == *(c - 1)) |
|
return(0); |
|
if (' ' == *(c + 1) || ' ' == *(c - 1)) |
|
return(0); |
|
/* Skip double invocations. */ |
|
if ('-' == *(c + 1) || '-' == *(c - 1)) |
|
return(0); |
|
/* Skip escapes. */ |
|
if ('\\' == *(c - 1)) |
|
return(0); |
|
|
|
return(1); |
} |
} |