version 1.40, 2011/03/17 09:16:38 |
version 1.86, 2014/08/18 09:11:47 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2011, 2012, 2013, 2014 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 |
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
#ifdef HAVE_CONFIG_H |
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#include "config.h" |
#include "config.h" |
#endif |
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#include <sys/types.h> |
#include <sys/types.h> |
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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 "mandoc.h" |
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#include "mandoc_aux.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
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#define DATESIZE 32 |
#define DATESIZE 32 |
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static int a2time(time_t *, const char *, const char *); |
static int a2time(time_t *, const char *, const char *); |
static char *time2a(time_t); |
static char *time2a(time_t); |
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int |
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mandoc_special(char *p) |
enum mandoc_esc |
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mandoc_escape(const char **end, const char **start, int *sz) |
{ |
{ |
int len, i; |
const char *local_start; |
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int local_sz; |
char term; |
char term; |
char *sv; |
enum mandoc_esc gly; |
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len = 0; |
/* |
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* When the caller doesn't provide return storage, |
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* use local storage. |
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*/ |
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if (NULL == start) |
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start = &local_start; |
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if (NULL == sz) |
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sz = &local_sz; |
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/* |
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* Beyond the backslash, at least one input character |
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* is part of the escape sequence. With one exception |
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* (see below), that character won't be returned. |
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*/ |
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gly = ESCAPE_ERROR; |
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*start = ++*end; |
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*sz = 0; |
term = '\0'; |
term = '\0'; |
sv = p; |
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|
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assert('\\' == *p); |
switch ((*start)[-1]) { |
p++; |
/* |
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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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*sz = 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' == (*start)[0] && ']' != (*start)[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 ('\'' != **start) |
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return(ESCAPE_ERROR); |
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*start = ++*end; |
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if ('u' == (*start)[0] && '\'' != (*start)[1]) |
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gly = ESCAPE_UNICODE; |
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else |
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gly = ESCAPE_SPECIAL; |
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term = '\''; |
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break; |
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switch (*p++) { |
/* |
#if 0 |
* Escapes taking no arguments at all. |
case ('Z'): |
*/ |
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case 'd': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('X'): |
case 'u': |
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return(ESCAPE_IGNORE); |
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/* |
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* The \z escape is supposed to output the following |
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* character without advancing the cursor position. |
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* Since we are mostly dealing with terminal mode, |
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* let us just skip the next character. |
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*/ |
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case 'z': |
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return(ESCAPE_SKIPCHAR); |
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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 ('x'): |
case 'g': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('S'): |
case 'k': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('R'): |
case 'M': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('N'): |
case 'm': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('l'): |
case 'n': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('L'): |
case 'V': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('H'): |
case 'Y': |
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gly = ESCAPE_IGNORE; |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('h'): |
case 'f': |
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if (ESCAPE_ERROR == gly) |
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gly = ESCAPE_FONT; |
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switch (**start) { |
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case '(': |
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*start = ++*end; |
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*sz = 2; |
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break; |
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case '[': |
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*start = ++*end; |
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term = ']'; |
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break; |
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default: |
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*sz = 1; |
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break; |
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} |
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break; |
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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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* The \B and \w escapes are handled in roff.c, roff_res(). |
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*/ |
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case 'A': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('D'): |
case 'b': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('C'): |
case 'D': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('b'): |
case 'o': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('B'): |
case 'R': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('a'): |
case 'X': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('A'): |
case 'Z': |
if (*p++ != '\'') |
if ('\0' == **start) |
return(0); |
return(ESCAPE_ERROR); |
term = '\''; |
gly = ESCAPE_IGNORE; |
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term = **start; |
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*start = ++*end; |
break; |
break; |
#endif |
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case ('h'): |
/* |
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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 'h': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('v'): |
case 'H': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('s'): |
case 'L': |
if (ASCII_HYPH == *p) |
/* FALLTHROUGH */ |
*p = '-'; |
case 'l': |
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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 'x': |
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if (strchr(" %&()*+-./0123456789:<=>", **start)) { |
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if ('\0' != **start) |
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++*end; |
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return(ESCAPE_ERROR); |
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} |
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gly = ESCAPE_IGNORE; |
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term = **start; |
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*start = ++*end; |
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break; |
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i = 0; |
/* |
if ('+' == *p || '-' == *p) { |
* Special handling for the numbered character escape. |
p++; |
* XXX Do any other escapes need similar handling? |
i = 1; |
*/ |
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case 'N': |
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if ('\0' == **start) |
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return(ESCAPE_ERROR); |
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(*end)++; |
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if (isdigit((unsigned char)**start)) { |
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*sz = 1; |
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return(ESCAPE_IGNORE); |
} |
} |
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(*start)++; |
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while (isdigit((unsigned char)**end)) |
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(*end)++; |
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*sz = *end - *start; |
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if ('\0' != **end) |
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(*end)++; |
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return(ESCAPE_NUMBERED); |
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switch (*p++) { |
/* |
case ('('): |
* Sizes get a special category of their own. |
len = 2; |
*/ |
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case 's': |
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gly = ESCAPE_IGNORE; |
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/* See +/- counts as a sign. */ |
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if ('+' == **end || '-' == **end || ASCII_HYPH == **end) |
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(*end)++; |
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switch (**end) { |
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case '(': |
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*start = ++*end; |
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*sz = 2; |
break; |
break; |
case ('['): |
case '[': |
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*start = ++*end; |
term = ']'; |
term = ']'; |
break; |
break; |
case ('\''): |
case '\'': |
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*start = ++*end; |
term = '\''; |
term = '\''; |
break; |
break; |
case ('0'): |
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i = 1; |
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/* FALLTHROUGH */ |
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default: |
default: |
len = 1; |
*sz = 1; |
p--; |
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break; |
break; |
} |
} |
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if (ASCII_HYPH == *p) |
break; |
*p = '-'; |
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if ('+' == *p || '-' == *p) { |
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if (i) |
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return(0); |
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p++; |
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} |
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/* Handle embedded numerical subexp or escape. */ |
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if ('(' == *p) { |
/* |
while (*p && ')' != *p) |
* Anything else is assumed to be a glyph. |
if ('\\' == *p++) { |
* In this case, pass back the character after the backslash. |
i = mandoc_special(--p); |
*/ |
if (0 == i) |
default: |
return(0); |
gly = ESCAPE_SPECIAL; |
p += i; |
*start = --*end; |
} |
*sz = 1; |
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break; |
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} |
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if (')' == *p++) |
assert(ESCAPE_ERROR != gly); |
break; |
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return(0); |
/* |
} else if ('\\' == *p) { |
* Read up to the terminating character, |
if (0 == (i = mandoc_special(p))) |
* paying attention to nested escapes. |
return(0); |
*/ |
p += i; |
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if ('\0' != term) { |
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while (**end != term) { |
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switch (**end) { |
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case '\0': |
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return(ESCAPE_ERROR); |
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case '\\': |
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(*end)++; |
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if (ESCAPE_ERROR == |
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mandoc_escape(end, NULL, NULL)) |
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return(ESCAPE_ERROR); |
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break; |
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default: |
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(*end)++; |
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break; |
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} |
} |
} |
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*sz = (*end)++ - *start; |
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} else { |
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assert(*sz > 0); |
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if ((size_t)*sz > strlen(*start)) |
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return(ESCAPE_ERROR); |
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*end += *sz; |
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} |
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break; |
/* Run post-processors. */ |
#if 0 |
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case ('Y'): |
switch (gly) { |
/* FALLTHROUGH */ |
case ESCAPE_FONT: |
case ('V'): |
if (2 == *sz) { |
/* FALLTHROUGH */ |
if ('C' == **start) { |
case ('$'): |
/* |
/* FALLTHROUGH */ |
* Treat constant-width font modes |
case ('n'): |
* just like regular font modes. |
/* FALLTHROUGH */ |
*/ |
#endif |
(*start)++; |
case ('k'): |
(*sz)--; |
/* FALLTHROUGH */ |
} else { |
case ('M'): |
if ('B' == (*start)[0] && 'I' == (*start)[1]) |
/* FALLTHROUGH */ |
gly = ESCAPE_FONTBI; |
case ('m'): |
break; |
/* FALLTHROUGH */ |
} |
case ('f'): |
} else if (1 != *sz) |
/* FALLTHROUGH */ |
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case ('F'): |
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/* FALLTHROUGH */ |
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case ('*'): |
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switch (*p++) { |
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case ('('): |
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len = 2; |
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break; |
break; |
case ('['): |
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term = ']'; |
switch (**start) { |
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case '3': |
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/* FALLTHROUGH */ |
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case 'B': |
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gly = ESCAPE_FONTBOLD; |
break; |
break; |
default: |
case '2': |
len = 1; |
/* FALLTHROUGH */ |
p--; |
case 'I': |
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gly = ESCAPE_FONTITALIC; |
break; |
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 */ |
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case 'R': |
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gly = ESCAPE_FONTROMAN; |
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break; |
} |
} |
break; |
break; |
case ('('): |
case ESCAPE_SPECIAL: |
len = 2; |
if (1 == *sz && 'c' == **start) |
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gly = ESCAPE_NOSPACE; |
break; |
break; |
case ('['): |
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term = ']'; |
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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 */ |
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default: |
default: |
len = 1; |
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p--; |
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break; |
break; |
} |
} |
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if (term) { |
return(gly); |
for ( ; *p && term != *p; p++) |
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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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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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} |
} |
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void * |
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mandoc_calloc(size_t num, size_t size) |
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{ |
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void *ptr; |
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ptr = calloc(num, size); |
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if (NULL == ptr) { |
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perror(NULL); |
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exit((int)MANDOCLEVEL_SYSERR); |
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} |
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return(ptr); |
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} |
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void * |
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mandoc_malloc(size_t size) |
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{ |
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void *ptr; |
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ptr = malloc(size); |
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if (NULL == ptr) { |
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perror(NULL); |
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exit((int)MANDOCLEVEL_SYSERR); |
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} |
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return(ptr); |
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} |
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void * |
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mandoc_realloc(void *ptr, size_t size) |
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{ |
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ptr = realloc(ptr, size); |
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if (NULL == ptr) { |
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perror(NULL); |
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exit((int)MANDOCLEVEL_SYSERR); |
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} |
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return(ptr); |
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} |
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char * |
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mandoc_strdup(const char *ptr) |
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{ |
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char *p; |
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p = strdup(ptr); |
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if (NULL == p) { |
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perror(NULL); |
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exit((int)MANDOCLEVEL_SYSERR); |
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} |
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return(p); |
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} |
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/* |
/* |
* Parse a quoted or unquoted roff-style request or macro argument. |
* Parse a quoted or unquoted roff-style request or macro argument. |
* Return a pointer to the parsed argument, which is either the original |
* Return a pointer to the parsed argument, which is either the original |
* pointer or advanced by one byte in case the argument is quoted. |
* pointer or advanced by one byte in case the argument is quoted. |
* Null-terminate the argument in place. |
* NUL-terminate the argument in place. |
* Collapse pairs of quotes inside quoted arguments. |
* Collapse pairs of quotes inside quoted arguments. |
* Advance the argument pointer to the next argument, |
* Advance the argument pointer to the next argument, |
* or to the null byte terminating the argument line. |
* or to the NUL byte terminating the argument line. |
*/ |
*/ |
char * |
char * |
mandoc_getarg(char **cpp, mandocmsg msg, void *data, int ln, int *pos) |
mandoc_getarg(struct mparse *parse, char **cpp, int ln, int *pos) |
{ |
{ |
char *start, *cp; |
char *start, *cp; |
int quoted, pairs, white; |
int quoted, pairs, white; |
|
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/* Quoting can only start with a new word. */ |
/* Quoting can only start with a new word. */ |
start = *cpp; |
start = *cpp; |
|
quoted = 0; |
if ('"' == *start) { |
if ('"' == *start) { |
quoted = 1; |
quoted = 1; |
start++; |
start++; |
} else |
} |
quoted = 0; |
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|
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pairs = 0; |
pairs = 0; |
white = 0; |
white = 0; |
for (cp = start; '\0' != *cp; cp++) { |
for (cp = start; '\0' != *cp; cp++) { |
/* Move left after quoted quotes and escaped backslashes. */ |
|
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/* |
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* Move the following text left |
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* after quoted quotes and after "\\" and "\t". |
|
*/ |
if (pairs) |
if (pairs) |
cp[-pairs] = cp[0]; |
cp[-pairs] = cp[0]; |
|
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if ('\\' == cp[0]) { |
if ('\\' == cp[0]) { |
if ('\\' == cp[1]) { |
/* |
/* Poor man's copy mode. */ |
* In copy mode, translate double to single |
|
* backslashes and backslash-t to literal tabs. |
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*/ |
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switch (cp[1]) { |
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case 't': |
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cp[0] = '\t'; |
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/* FALLTHROUGH */ |
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case '\\': |
pairs++; |
pairs++; |
cp++; |
cp++; |
} else if (0 == quoted && ' ' == cp[1]) |
break; |
|
case ' ': |
/* Skip escaped blanks. */ |
/* Skip escaped blanks. */ |
cp++; |
if (0 == quoted) |
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cp++; |
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break; |
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default: |
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break; |
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} |
} else if (0 == quoted) { |
} else if (0 == quoted) { |
if (' ' == cp[0]) { |
if (' ' == cp[0]) { |
/* Unescaped blanks end unquoted args. */ |
/* Unescaped blanks end unquoted args. */ |
Line 343 mandoc_getarg(char **cpp, mandocmsg msg, void *data, i |
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Line 427 mandoc_getarg(char **cpp, mandocmsg msg, void *data, i |
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} |
} |
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/* Quoted argument without a closing quote. */ |
/* Quoted argument without a closing quote. */ |
if (1 == quoted && msg) |
if (1 == quoted) |
(*msg)(MANDOCERR_BADQUOTE, data, ln, *pos, NULL); |
mandoc_msg(MANDOCERR_ARG_QUOTE, parse, ln, *pos, NULL); |
|
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/* Null-terminate this argument and move to the next one. */ |
/* NUL-terminate this argument and move to the next one. */ |
if (pairs) |
if (pairs) |
cp[-pairs] = '\0'; |
cp[-pairs] = '\0'; |
if ('\0' != *cp) { |
if ('\0' != *cp) { |
Line 357 mandoc_getarg(char **cpp, mandocmsg msg, void *data, i |
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Line 441 mandoc_getarg(char **cpp, mandocmsg msg, void *data, i |
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*pos += (int)(cp - start) + (quoted ? 1 : 0); |
*pos += (int)(cp - start) + (quoted ? 1 : 0); |
*cpp = cp; |
*cpp = cp; |
|
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if ('\0' == *cp && msg && (white || ' ' == cp[-1])) |
if ('\0' == *cp && (white || ' ' == cp[-1])) |
(*msg)(MANDOCERR_EOLNSPACE, data, ln, *pos, NULL); |
mandoc_msg(MANDOCERR_SPACE_EOL, parse, ln, *pos, NULL); |
|
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return(start); |
return(start); |
} |
} |
Line 371 a2time(time_t *t, const char *fmt, const char *p) |
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Line 455 a2time(time_t *t, const char *fmt, const char *p) |
|
|
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memset(&tm, 0, sizeof(struct tm)); |
memset(&tm, 0, sizeof(struct tm)); |
|
|
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pp = NULL; |
|
#if HAVE_STRPTIME |
pp = strptime(p, fmt, &tm); |
pp = strptime(p, fmt, &tm); |
|
#endif |
if (NULL != pp && '\0' == *pp) { |
if (NULL != pp && '\0' == *pp) { |
*t = mktime(&tm); |
*t = mktime(&tm); |
return(1); |
return(1); |
Line 383 a2time(time_t *t, const char *fmt, const char *p) |
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Line 470 a2time(time_t *t, const char *fmt, const char *p) |
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static char * |
static char * |
time2a(time_t t) |
time2a(time_t t) |
{ |
{ |
struct tm tm; |
struct tm *tm; |
char *buf, *p; |
char *buf, *p; |
size_t ssz; |
size_t ssz; |
int isz; |
int isz; |
|
|
localtime_r(&t, &tm); |
tm = localtime(&t); |
|
|
/* |
/* |
* Reserve space: |
* Reserve space: |
Line 398 time2a(time_t t) |
|
Line 485 time2a(time_t t) |
|
*/ |
*/ |
p = buf = mandoc_malloc(10 + 4 + 4 + 1); |
p = buf = mandoc_malloc(10 + 4 + 4 + 1); |
|
|
if (0 == (ssz = strftime(p, 10 + 1, "%B ", &tm))) |
if (0 == (ssz = strftime(p, 10 + 1, "%B ", tm))) |
goto fail; |
goto fail; |
p += (int)ssz; |
p += (int)ssz; |
|
|
if (-1 == (isz = snprintf(p, 4 + 1, "%d, ", tm.tm_mday))) |
if (-1 == (isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday))) |
goto fail; |
goto fail; |
p += isz; |
p += isz; |
|
|
if (0 == strftime(p, 4 + 1, "%Y", &tm)) |
if (0 == strftime(p, 4 + 1, "%Y", tm)) |
goto fail; |
goto fail; |
return(buf); |
return(buf); |
|
|
|
|
} |
} |
|
|
char * |
char * |
mandoc_normdate(char *in, mandocmsg msg, void *data, int ln, int pos) |
mandoc_normdate(struct mparse *parse, char *in, int ln, int pos) |
{ |
{ |
char *out; |
char *out; |
time_t t; |
time_t t; |
|
|
if (NULL == in || '\0' == *in || |
if (NULL == in || '\0' == *in || |
0 == strcmp(in, "$" "Mdocdate$")) { |
0 == strcmp(in, "$" "Mdocdate$")) { |
(*msg)(MANDOCERR_NODATE, data, ln, pos, NULL); |
mandoc_msg(MANDOCERR_DATE_MISSING, parse, ln, pos, NULL); |
time(&t); |
time(&t); |
} |
} |
|
else if (a2time(&t, "%Y-%m-%d", in)) |
|
t = 0; |
else if (!a2time(&t, "$" "Mdocdate: %b %d %Y $", in) && |
else if (!a2time(&t, "$" "Mdocdate: %b %d %Y $", in) && |
!a2time(&t, "%b %d, %Y", in) && |
!a2time(&t, "%b %d, %Y", in)) { |
!a2time(&t, "%Y-%m-%d", in)) { |
mandoc_msg(MANDOCERR_DATE_BAD, parse, ln, pos, in); |
(*msg)(MANDOCERR_BADDATE, data, ln, pos, NULL); |
|
t = 0; |
t = 0; |
} |
} |
out = t ? time2a(t) : NULL; |
out = t ? time2a(t) : NULL; |
Line 437 mandoc_normdate(char *in, mandocmsg msg, void *data, i |
|
Line 525 mandoc_normdate(char *in, mandocmsg msg, void *data, i |
|
} |
} |
|
|
int |
int |
mandoc_eos(const char *p, size_t sz, int enclosed) |
mandoc_eos(const char *p, size_t sz) |
{ |
{ |
const char *q; |
const char *q; |
int found; |
int enclosed, found; |
|
|
if (0 == sz) |
if (0 == sz) |
return(0); |
return(0); |
Line 448 mandoc_eos(const char *p, size_t sz, int enclosed) |
|
Line 536 mandoc_eos(const char *p, size_t sz, int enclosed) |
|
/* |
/* |
* 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. |
*/ |
*/ |
|
|
found = 0; |
enclosed = found = 0; |
for (q = p + (int)sz - 1; q >= p; q--) { |
for (q = p + (int)sz - 1; q >= p; q--) { |
switch (*q) { |
switch (*q) { |
case ('\"'): |
case '\"': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('\''): |
case '\'': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (']'): |
case ']': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (')'): |
case ')': |
if (0 == found) |
if (0 == found) |
enclosed = 1; |
enclosed = 1; |
break; |
break; |
case ('.'): |
case '.': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('!'): |
case '!': |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('?'): |
case '?': |
found = 1; |
found = 1; |
break; |
break; |
default: |
default: |
Line 479 mandoc_eos(const char *p, size_t sz, int enclosed) |
|
Line 567 mandoc_eos(const char *p, size_t sz, int enclosed) |
|
return(found && !enclosed); |
return(found && !enclosed); |
} |
} |
|
|
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); |
|
} |
|
|
|
/* |
/* |
* Check if a string is a punctuation delimiter. This only applies to |
* Convert a string to a long that may not be <0. |
* mdoc(7) documents, but as it's used in both front-ends and back-ends, |
* If the string is invalid, or is less than 0, return -1. |
* it needs to go here (instead of, say, in libmdoc.h). |
|
*/ |
*/ |
enum mdelim |
int |
mandoc_isdelim(const char *p) |
mandoc_strntoi(const char *p, size_t sz, int base) |
{ |
{ |
|
char buf[32]; |
|
char *ep; |
|
long v; |
|
|
if ('\0' == p[0]) |
if (sz > 31) |
return(DELIM_NONE); |
return(-1); |
|
|
if ('\0' == p[1]) |
memcpy(buf, p, sz); |
switch (p[0]) { |
buf[(int)sz] = '\0'; |
case('('): |
|
/* FALLTHROUGH */ |
|
case('['): |
|
return(DELIM_OPEN); |
|
case('|'): |
|
return(DELIM_MIDDLE); |
|
case('.'): |
|
/* FALLTHROUGH */ |
|
case(','): |
|
/* FALLTHROUGH */ |
|
case(';'): |
|
/* FALLTHROUGH */ |
|
case(':'): |
|
/* FALLTHROUGH */ |
|
case('?'): |
|
/* FALLTHROUGH */ |
|
case('!'): |
|
/* FALLTHROUGH */ |
|
case(')'): |
|
/* FALLTHROUGH */ |
|
case(']'): |
|
return(DELIM_CLOSE); |
|
default: |
|
return(DELIM_NONE); |
|
} |
|
|
|
if ('\\' != p[0]) |
errno = 0; |
return(DELIM_NONE); |
v = strtol(buf, &ep, base); |
|
|
if (0 == strcmp(p, "\\.")) |
if (buf[0] == '\0' || *ep != '\0') |
return(DELIM_CLOSE); |
return(-1); |
if (0 == strcmp(p, "\\*(Ba")) |
|
return(DELIM_MIDDLE); |
|
|
|
return(DELIM_NONE); |
if (v > INT_MAX) |
|
v = INT_MAX; |
|
if (v < INT_MIN) |
|
v = INT_MIN; |
|
|
|
return((int)v); |
} |
} |