version 1.16, 2010/05/25 12:37:20 |
version 1.52, 2011/05/15 15:30:33 |
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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> |
|
* 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 <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
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#include <errno.h> |
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#include <limits.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <stdio.h> |
#include <stdio.h> |
#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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static int numescape(const char *); |
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int |
/* |
mandoc_special(const char *p) |
* Pass over recursive numerical expressions. This context of this |
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* function is important: it's only called within character-terminating |
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* escapes (e.g., \s[xxxyyy]), so all we need to do is handle initial |
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* recursion: we don't care about what's in these blocks. |
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* This returns the number of characters skipped or -1 if an error |
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* occurs (the caller should bail). |
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*/ |
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static int |
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numescape(const char *start) |
{ |
{ |
int terminator; /* Terminator for \s. */ |
int i; |
int lim; /* Limit for N in \s. */ |
size_t sz; |
int c, i; |
const char *cp; |
|
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if ('\\' != *p++) |
i = 0; |
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|
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/* The expression consists of a subexpression. */ |
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|
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if ('\\' == start[i]) { |
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cp = &start[++i]; |
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/* |
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* Read past the end of the subexpression. |
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* Bail immediately on errors. |
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*/ |
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if (ESCAPE_ERROR == mandoc_escape(&cp, NULL, NULL)) |
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return(-1); |
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return(i + cp - &start[i]); |
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} |
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|
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if ('(' != start[i++]) |
return(0); |
return(0); |
|
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switch (*p) { |
/* |
case ('\''): |
* A parenthesised subexpression. Read until the closing |
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* parenthesis, making sure to handle any nested subexpressions |
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* that might ruin our parse. |
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*/ |
|
|
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while (')' != start[i]) { |
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sz = strcspn(&start[i], ")\\"); |
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i += (int)sz; |
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|
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if ('\0' == start[i]) |
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return(-1); |
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else if ('\\' != start[i]) |
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continue; |
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cp = &start[++i]; |
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if (ESCAPE_ERROR == mandoc_escape(&cp, NULL, NULL)) |
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return(-1); |
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i += cp - &start[i]; |
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} |
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|
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/* Read past the terminating ')'. */ |
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return(++i); |
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} |
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|
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enum mandoc_esc |
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mandoc_escape(const char **end, const char **start, int *sz) |
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{ |
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char c, term, numeric; |
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int i, lim, ssz, rlim; |
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const char *cp, *rstart; |
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enum mandoc_esc gly; |
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cp = *end; |
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rstart = cp; |
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if (start) |
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*start = rstart; |
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i = lim = 0; |
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gly = ESCAPE_ERROR; |
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term = numeric = '\0'; |
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|
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switch ((c = cp[i++])) { |
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/* |
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* First the glyphs. There are several different forms of |
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* these, but each eventually returns a substring of the glyph |
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* name. |
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*/ |
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case ('('): |
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gly = ESCAPE_SPECIAL; |
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lim = 2; |
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break; |
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case ('['): |
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gly = ESCAPE_SPECIAL; |
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/* |
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* Unicode escapes are defined in groff as \[uXXXX] to |
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* \[u10FFFF], where the contained value must be a valid |
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* Unicode codepoint. Here, however, only check whether |
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* it's not a zero-width escape. |
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*/ |
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if ('u' == cp[i] && ']' != cp[i + 1]) |
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gly = ESCAPE_UNICODE; |
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term = ']'; |
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break; |
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case ('C'): |
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if ('\'' != cp[i]) |
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return(ESCAPE_ERROR); |
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gly = ESCAPE_SPECIAL; |
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term = '\''; |
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break; |
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|
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/* |
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* Handle all triggers matching \X(xy, \Xx, and \X[xxxx], where |
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* 'X' is the trigger. These have opaque sub-strings. |
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*/ |
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case ('F'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('`'): |
case ('g'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('q'): |
case ('k'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('-'): |
case ('M'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('~'): |
case ('m'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('^'): |
case ('n'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('%'): |
case ('V'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('0'): |
case ('Y'): |
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if (ESCAPE_ERROR == gly) |
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gly = ESCAPE_IGNORE; |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (' '): |
case ('*'): |
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if (ESCAPE_ERROR == gly) |
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gly = ESCAPE_PREDEF; |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('|'): |
case ('f'): |
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if (ESCAPE_ERROR == gly) |
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gly = ESCAPE_FONT; |
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|
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rstart= &cp[i]; |
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if (start) |
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*start = rstart; |
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|
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switch (cp[i++]) { |
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case ('('): |
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lim = 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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default: |
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lim = 1; |
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i--; |
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break; |
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} |
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break; |
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|
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/* |
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* These escapes are of the form \X'Y', where 'X' is the trigger |
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* and 'Y' is any string. These have opaque sub-strings. |
|
*/ |
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case ('A'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('&'): |
case ('b'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('.'): |
case ('D'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (':'): |
case ('o'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('c'): |
case ('R'): |
return(2); |
/* FALLTHROUGH */ |
case ('e'): |
case ('X'): |
return(2); |
/* FALLTHROUGH */ |
|
case ('Z'): |
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if ('\'' != cp[i++]) |
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return(ESCAPE_ERROR); |
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gly = ESCAPE_IGNORE; |
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term = '\''; |
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break; |
|
|
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/* |
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* These escapes are of the form \X'N', where 'X' is the trigger |
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* and 'N' resolves to a numerical expression. |
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*/ |
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case ('B'): |
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/* FALLTHROUGH */ |
|
case ('h'): |
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/* FALLTHROUGH */ |
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case ('H'): |
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/* FALLTHROUGH */ |
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case ('L'): |
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/* FALLTHROUGH */ |
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case ('l'): |
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/* FALLTHROUGH */ |
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case ('N'): |
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if (ESCAPE_ERROR == gly) |
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gly = ESCAPE_NUMBERED; |
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/* FALLTHROUGH */ |
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case ('S'): |
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/* FALLTHROUGH */ |
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case ('v'): |
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/* FALLTHROUGH */ |
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case ('w'): |
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/* FALLTHROUGH */ |
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case ('x'): |
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if (ESCAPE_ERROR == gly) |
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gly = ESCAPE_IGNORE; |
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if ('\'' != cp[i++]) |
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return(ESCAPE_ERROR); |
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term = numeric = '\''; |
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break; |
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/* |
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* Sizes get a special category of their own. |
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*/ |
case ('s'): |
case ('s'): |
if ('\0' == *++p) |
gly = ESCAPE_IGNORE; |
return(2); |
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c = 2; |
rstart = &cp[i]; |
terminator = 0; |
if (start) |
lim = 1; |
*start = rstart; |
|
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if (*p == '\'') { |
/* See +/- counts as a sign. */ |
lim = 0; |
c = cp[i]; |
terminator = 1; |
if ('+' == c || '-' == c || ASCII_HYPH == c) |
++p; |
++i; |
++c; |
|
} else if (*p == '[') { |
switch (cp[i++]) { |
lim = 0; |
case ('('): |
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; |
lim = 2; |
terminator = 3; |
break; |
++p; |
case ('['): |
++c; |
term = numeric = ']'; |
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break; |
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case ('\''): |
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term = numeric = '\''; |
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break; |
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default: |
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lim = 1; |
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i--; |
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break; |
} |
} |
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if (*p == '+' || *p == '-') { |
/* See +/- counts as a sign. */ |
++p; |
c = cp[i]; |
++c; |
if ('+' == c || '-' == c || ASCII_HYPH == c) |
} |
++i; |
|
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if (*p == '\'') { |
break; |
if (terminator) |
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return(0); |
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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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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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|
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/* TODO: needs to handle floating point. */ |
/* |
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* Anything else is assumed to be a glyph. |
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*/ |
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default: |
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gly = ESCAPE_SPECIAL; |
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lim = 1; |
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i--; |
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break; |
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} |
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if ( ! isdigit((u_char)*p)) |
assert(ESCAPE_ERROR != gly); |
return(0); |
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|
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for (i = 0; isdigit((u_char)*p); i++) { |
rstart = &cp[i]; |
if (lim && i >= lim) |
if (start) |
break; |
*start = rstart; |
++p; |
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++c; |
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} |
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|
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if (terminator && terminator < 3) { |
/* |
if (1 == terminator && *p != '\'') |
* If a terminating block has been specified, we need to |
return(0); |
* handle the case of recursion, which could have their |
if (2 == terminator && *p != ']') |
* own terminating blocks that mess up our parse. This, by the |
return(0); |
* way, means that the "start" and "size" values will be |
++p; |
* effectively meaningless. |
++c; |
*/ |
} |
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|
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return(c); |
ssz = 0; |
case ('f'): |
if (numeric && -1 == (ssz = numescape(&cp[i]))) |
/* FALLTHROUGH */ |
return(ESCAPE_ERROR); |
case ('F'): |
|
/* FALLTHROUGH */ |
i += ssz; |
case ('*'): |
rlim = -1; |
if (0 == *++p || ! isgraph((u_char)*p)) |
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return(0); |
/* |
switch (*p) { |
* We have a character terminator. Try to read up to that |
case ('('): |
* character. If we can't (i.e., we hit the nil), then return |
if (0 == *++p || ! isgraph((u_char)*p)) |
* an error; if we can, calculate our length, read past the |
return(0); |
* terminating character, and exit. |
return(4); |
*/ |
case ('['): |
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for (c = 3, p++; *p && ']' != *p; p++, c++) |
if ('\0' != term) { |
if ( ! isgraph((u_char)*p)) |
*end = strchr(&cp[i], term); |
break; |
if ('\0' == *end) |
return(*p == ']' ? c : 0); |
return(ESCAPE_ERROR); |
default: |
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rlim = *end - &cp[i]; |
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if (sz) |
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*sz = rlim; |
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(*end)++; |
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goto out; |
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} |
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|
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assert(lim > 0); |
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/* |
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* We have a numeric limit. If the string is shorter than that, |
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* stop and return an error. Else adjust our endpoint, length, |
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* and return the current glyph. |
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*/ |
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|
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if ((size_t)lim > strlen(&cp[i])) |
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return(ESCAPE_ERROR); |
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rlim = lim; |
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if (sz) |
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*sz = rlim; |
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|
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*end = &cp[i] + lim; |
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out: |
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assert(rlim >= 0 && rstart); |
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|
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/* Run post-processors. */ |
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switch (gly) { |
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case (ESCAPE_FONT): |
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if (1 != rlim) |
break; |
break; |
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switch (*rstart) { |
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case ('3'): |
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/* FALLTHROUGH */ |
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case ('B'): |
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gly = ESCAPE_FONTBOLD; |
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break; |
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case ('2'): |
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/* FALLTHROUGH */ |
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case ('I'): |
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gly = ESCAPE_FONTITALIC; |
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break; |
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case ('P'): |
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gly = ESCAPE_FONTPREV; |
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break; |
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case ('1'): |
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/* FALLTHROUGH */ |
|
case ('R'): |
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gly = ESCAPE_FONTROMAN; |
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break; |
} |
} |
return(3); |
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case ('('): |
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if (0 == *++p || ! isgraph((u_char)*p)) |
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return(0); |
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if (0 == *++p || ! isgraph((u_char)*p)) |
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return(0); |
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return(4); |
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case ('['): |
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break; |
break; |
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case (ESCAPE_SPECIAL): |
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if (1 != rlim) |
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break; |
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if ('c' == *rstart) |
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gly = ESCAPE_NOSPACE; |
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break; |
default: |
default: |
return(0); |
break; |
} |
} |
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for (c = 3, p++; *p && ']' != *p; p++, c++) |
return(gly); |
if ( ! isgraph((u_char)*p)) |
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break; |
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|
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return(*p == ']' ? c : 0); |
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} |
} |
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void * |
void * |
mandoc_calloc(size_t num, size_t size) |
mandoc_calloc(size_t num, size_t size) |
{ |
{ |
Line 197 mandoc_calloc(size_t num, size_t size) |
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Line 401 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 416 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 430 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 445 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. |
|
* Return a pointer to the parsed argument, which is either the original |
|
* 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(struct mparse *parse, char **cpp, 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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|
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/* Quoting can only start with a new word. */ |
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start = *cpp; |
|
quoted = 0; |
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if ('"' == *start) { |
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quoted = 1; |
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start++; |
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} |
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|
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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]) |
|
/* Skip escaped blanks. */ |
|
cp++; |
|
} else if (0 == quoted) { |
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if (' ' == cp[0]) { |
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/* Unescaped blanks end unquoted args. */ |
|
white = 1; |
|
break; |
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} |
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} else if ('"' == cp[0]) { |
|
if ('"' == cp[1]) { |
|
/* Quoted quotes collapse. */ |
|
pairs++; |
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cp++; |
|
} else { |
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/* Unquoted quotes end quoted args. */ |
|
quoted = 2; |
|
break; |
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} |
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} |
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} |
|
|
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/* Quoted argument without a closing quote. */ |
|
if (1 == quoted) |
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mandoc_msg(MANDOCERR_BADQUOTE, parse, ln, *pos, NULL); |
|
|
|
/* Null-terminate this argument and move to the next one. */ |
|
if (pairs) |
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cp[-pairs] = '\0'; |
|
if ('\0' != *cp) { |
|
*cp++ = '\0'; |
|
while (' ' == *cp) |
|
cp++; |
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} |
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*pos += (int)(cp - start) + (quoted ? 1 : 0); |
|
*cpp = cp; |
|
|
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if ('\0' == *cp && (white || ' ' == cp[-1])) |
|
mandoc_msg(MANDOCERR_EOLNSPACE, parse, ln, *pos, NULL); |
|
|
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return(start); |
|
} |
|
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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 265 a2time(time_t *t, const char *fmt, const char *p) |
|
Line 545 a2time(time_t *t, const char *fmt, const char *p) |
|
return(0); |
return(0); |
} |
} |
|
|
|
static char * |
/* |
time2a(time_t t) |
* Convert from a manual date string (see mdoc(7) and man(7)) into a |
|
* date according to the stipulated date type. |
|
*/ |
|
time_t |
|
mandoc_a2time(int flags, const char *p) |
|
{ |
{ |
time_t t; |
struct tm tm; |
|
char *buf, *p; |
|
size_t ssz; |
|
int isz; |
|
|
if (MTIME_MDOCDATE & flags) { |
localtime_r(&t, &tm); |
if (0 == strcmp(p, "$" "Mdocdate$")) |
|
return(time(NULL)); |
|
if (a2time(&t, "$" "Mdocdate: %b %d %Y $", p)) |
|
return(t); |
|
} |
|
|
|
if (MTIME_CANONICAL & flags || MTIME_REDUCED & flags) |
/* |
if (a2time(&t, "%b %d, %Y", p)) |
* Reserve space: |
return(t); |
* up to 9 characters for the month (September) + blank |
|
* up to 2 characters for the day + comma + blank |
|
* 4 characters for the year and a terminating '\0' |
|
*/ |
|
p = buf = mandoc_malloc(10 + 4 + 4 + 1); |
|
|
if (MTIME_ISO_8601 & flags) |
if (0 == (ssz = strftime(p, 10 + 1, "%B ", &tm))) |
if (a2time(&t, "%Y-%m-%d", p)) |
goto fail; |
return(t); |
p += (int)ssz; |
|
|
if (MTIME_REDUCED & flags) { |
if (-1 == (isz = snprintf(p, 4 + 1, "%d, ", tm.tm_mday))) |
if (a2time(&t, "%d, %Y", p)) |
goto fail; |
return(t); |
p += isz; |
if (a2time(&t, "%Y", p)) |
|
return(t); |
|
} |
|
|
|
return(0); |
if (0 == strftime(p, 4 + 1, "%Y", &tm)) |
|
goto fail; |
|
return(buf); |
|
|
|
fail: |
|
free(buf); |
|
return(NULL); |
} |
} |
|
|
|
char * |
|
mandoc_normdate(struct mparse *parse, char *in, int ln, int pos) |
|
{ |
|
char *out; |
|
time_t t; |
|
|
|
if (NULL == in || '\0' == *in || |
|
0 == strcmp(in, "$" "Mdocdate$")) { |
|
mandoc_msg(MANDOCERR_NODATE, parse, ln, pos, NULL); |
|
time(&t); |
|
} |
|
else if (!a2time(&t, "$" "Mdocdate: %b %d %Y $", in) && |
|
!a2time(&t, "%b %d, %Y", in) && |
|
!a2time(&t, "%Y-%m-%d", in)) { |
|
mandoc_msg(MANDOCERR_BADDATE, parse, ln, pos, NULL); |
|
t = 0; |
|
} |
|
out = t ? time2a(t) : NULL; |
|
return(out ? out : mandoc_strdup(in)); |
|
} |
|
|
int |
int |
mandoc_eos(const char *p, size_t sz) |
mandoc_eos(const char *p, size_t sz, int enclosed) |
{ |
{ |
|
const char *q; |
|
int found; |
|
|
if (0 == sz) |
if (0 == sz) |
return(0); |
return(0); |
Line 311 mandoc_eos(const char *p, size_t sz) |
|
Line 613 mandoc_eos(const char *p, size_t sz) |
|
/* |
/* |
* End-of-sentence recognition must include situations where |
* End-of-sentence recognition must include situations where |
* some symbols, such as `)', allow prior EOS punctuation to |
* some symbols, such as `)', allow prior EOS punctuation to |
* propogate outward. |
* propagate outward. |
*/ |
*/ |
|
|
for ( ; sz; sz--) { |
found = 0; |
switch (p[(int)sz - 1]) { |
for (q = p + (int)sz - 1; q >= p; q--) { |
|
switch (*q) { |
case ('\"'): |
case ('\"'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('\''): |
case ('\''): |
Line 323 mandoc_eos(const char *p, size_t sz) |
|
Line 626 mandoc_eos(const char *p, size_t sz) |
|
case (']'): |
case (']'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (')'): |
case (')'): |
|
if (0 == found) |
|
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); |
} |
} |
|
|
|
|
int |
int |
mandoc_hyph(const char *start, const char *c) |
mandoc_hyph(const char *start, const char *c) |
{ |
{ |
Line 368 mandoc_hyph(const char *start, const char *c) |
|
Line 670 mandoc_hyph(const char *start, const char *c) |
|
|
|
return(1); |
return(1); |
} |
} |
|
|
|
/* |
|
* Find out whether a line is a macro line or not. If it is, adjust the |
|
* current position and return one; if it isn't, return zero and don't |
|
* change the current position. |
|
*/ |
|
int |
|
mandoc_getcontrol(const char *cp, int *ppos) |
|
{ |
|
int pos; |
|
|
|
pos = *ppos; |
|
|
|
if ('\\' == cp[pos] && '.' == cp[pos + 1]) |
|
pos += 2; |
|
else if ('.' == cp[pos] || '\'' == cp[pos]) |
|
pos++; |
|
else |
|
return(0); |
|
|
|
while (' ' == cp[pos] || '\t' == cp[pos]) |
|
pos++; |
|
|
|
*ppos = pos; |
|
return(1); |
|
} |
|
|
|
/* |
|
* Convert a string to a long that may not be <0. |
|
* If the string is invalid, or is less than 0, return -1. |
|
*/ |
|
int |
|
mandoc_strntou(const char *p, size_t sz, int base) |
|
{ |
|
char buf[32]; |
|
char *ep; |
|
long v; |
|
|
|
if (sz > 31) |
|
return(-1); |
|
|
|
memcpy(buf, p, sz); |
|
buf[(int)sz] = '\0'; |
|
|
|
errno = 0; |
|
v = strtol(buf, &ep, base); |
|
|
|
if (buf[0] == '\0' || *ep != '\0') |
|
return(-1); |
|
|
|
if ((errno == ERANGE && |
|
(v == LONG_MAX || v == LONG_MIN)) || |
|
(v > INT_MAX || v < 0)) |
|
return(-1); |
|
|
|
return((int)v); |
|
} |
|
|