version 1.88, 2014/10/28 13:24:44 |
version 1.108, 2018/10/25 01:32:40 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2011, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2011-2015, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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#include <string.h> |
#include <string.h> |
#include <time.h> |
#include <time.h> |
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#include "mandoc.h" |
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#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
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#include "mandoc.h" |
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#include "roff.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
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#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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mandoc_escape(const char **end, const char **start, int *sz) |
mandoc_escape(const char **end, const char **start, int *sz) |
{ |
{ |
const char *local_start; |
const char *local_start; |
int local_sz; |
int local_sz, c, i; |
char term; |
char term; |
enum mandoc_esc gly; |
enum mandoc_esc gly; |
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Line 83 mandoc_escape(const char **end, const char **start, in |
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Line 82 mandoc_escape(const char **end, const char **start, in |
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break; |
break; |
case 'C': |
case 'C': |
if ('\'' != **start) |
if ('\'' != **start) |
return(ESCAPE_ERROR); |
return ESCAPE_ERROR; |
*start = ++*end; |
*start = ++*end; |
gly = ESCAPE_SPECIAL; |
gly = ESCAPE_SPECIAL; |
term = '\''; |
term = '\''; |
Line 93 mandoc_escape(const char **end, const char **start, in |
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Line 92 mandoc_escape(const char **end, const char **start, in |
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* Escapes taking no arguments at all. |
* Escapes taking no arguments at all. |
*/ |
*/ |
case 'd': |
case 'd': |
/* FALLTHROUGH */ |
|
case 'u': |
case 'u': |
return(ESCAPE_IGNORE); |
case ',': |
|
case '/': |
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return ESCAPE_IGNORE; |
|
case 'p': |
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return ESCAPE_BREAK; |
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/* |
/* |
* The \z escape is supposed to output the following |
* The \z escape is supposed to output the following |
Line 104 mandoc_escape(const char **end, const char **start, in |
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Line 106 mandoc_escape(const char **end, const char **start, in |
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* let us just skip the next character. |
* let us just skip the next character. |
*/ |
*/ |
case 'z': |
case 'z': |
return(ESCAPE_SKIPCHAR); |
return ESCAPE_SKIPCHAR; |
|
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/* |
/* |
* Handle all triggers matching \X(xy, \Xx, and \X[xxxx], where |
* Handle all triggers matching \X(xy, \Xx, and \X[xxxx], where |
* 'X' is the trigger. These have opaque sub-strings. |
* 'X' is the trigger. These have opaque sub-strings. |
*/ |
*/ |
case 'F': |
case 'F': |
/* FALLTHROUGH */ |
|
case 'g': |
case 'g': |
/* FALLTHROUGH */ |
|
case 'k': |
case 'k': |
/* FALLTHROUGH */ |
|
case 'M': |
case 'M': |
/* FALLTHROUGH */ |
|
case 'm': |
case 'm': |
/* FALLTHROUGH */ |
|
case 'n': |
case 'n': |
/* FALLTHROUGH */ |
|
case 'V': |
case 'V': |
/* FALLTHROUGH */ |
|
case 'Y': |
case 'Y': |
gly = ESCAPE_IGNORE; |
gly = ESCAPE_IGNORE; |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
Line 144 mandoc_escape(const char **end, const char **start, in |
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Line 139 mandoc_escape(const char **end, const char **start, in |
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break; |
break; |
} |
} |
break; |
break; |
|
case '*': |
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if (strncmp(*start, "(.T", 3) != 0) |
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abort(); |
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gly = ESCAPE_DEVICE; |
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*start = ++*end; |
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*sz = 2; |
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break; |
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/* |
/* |
* These escapes are of the form \X'Y', where 'X' is the trigger |
* These escapes are of the form \X'Y', where 'X' is the trigger |
Line 151 mandoc_escape(const char **end, const char **start, in |
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Line 153 mandoc_escape(const char **end, const char **start, in |
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* The \B and \w escapes are handled in roff.c, roff_res(). |
* The \B and \w escapes are handled in roff.c, roff_res(). |
*/ |
*/ |
case 'A': |
case 'A': |
/* FALLTHROUGH */ |
|
case 'b': |
case 'b': |
/* FALLTHROUGH */ |
|
case 'D': |
case 'D': |
/* FALLTHROUGH */ |
|
case 'o': |
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/* FALLTHROUGH */ |
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case 'R': |
case 'R': |
/* FALLTHROUGH */ |
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case 'X': |
case 'X': |
/* FALLTHROUGH */ |
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case 'Z': |
case 'Z': |
if ('\0' == **start) |
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return(ESCAPE_ERROR); |
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gly = ESCAPE_IGNORE; |
gly = ESCAPE_IGNORE; |
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/* FALLTHROUGH */ |
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case 'o': |
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if (**start == '\0') |
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return ESCAPE_ERROR; |
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if (gly == ESCAPE_ERROR) |
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gly = ESCAPE_OVERSTRIKE; |
term = **start; |
term = **start; |
*start = ++*end; |
*start = ++*end; |
break; |
break; |
Line 175 mandoc_escape(const char **end, const char **start, in |
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Line 174 mandoc_escape(const char **end, const char **start, in |
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* and 'N' resolves to a numerical expression. |
* and 'N' resolves to a numerical expression. |
*/ |
*/ |
case 'h': |
case 'h': |
/* FALLTHROUGH */ |
|
case 'H': |
case 'H': |
/* FALLTHROUGH */ |
|
case 'L': |
case 'L': |
/* FALLTHROUGH */ |
|
case 'l': |
case 'l': |
/* FALLTHROUGH */ |
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case 'S': |
case 'S': |
/* FALLTHROUGH */ |
|
case 'v': |
case 'v': |
/* FALLTHROUGH */ |
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case 'x': |
case 'x': |
if (strchr(" %&()*+-./0123456789:<=>", **start)) { |
if (strchr(" %&()*+-./0123456789:<=>", **start)) { |
if ('\0' != **start) |
if ('\0' != **start) |
++*end; |
++*end; |
return(ESCAPE_ERROR); |
return ESCAPE_ERROR; |
} |
} |
gly = ESCAPE_IGNORE; |
switch ((*start)[-1]) { |
|
case 'h': |
|
gly = ESCAPE_HORIZ; |
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break; |
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case 'l': |
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gly = ESCAPE_HLINE; |
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break; |
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default: |
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gly = ESCAPE_IGNORE; |
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break; |
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} |
term = **start; |
term = **start; |
*start = ++*end; |
*start = ++*end; |
break; |
break; |
Line 203 mandoc_escape(const char **end, const char **start, in |
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Line 206 mandoc_escape(const char **end, const char **start, in |
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*/ |
*/ |
case 'N': |
case 'N': |
if ('\0' == **start) |
if ('\0' == **start) |
return(ESCAPE_ERROR); |
return ESCAPE_ERROR; |
(*end)++; |
(*end)++; |
if (isdigit((unsigned char)**start)) { |
if (isdigit((unsigned char)**start)) { |
*sz = 1; |
*sz = 1; |
return(ESCAPE_IGNORE); |
return ESCAPE_IGNORE; |
} |
} |
(*start)++; |
(*start)++; |
while (isdigit((unsigned char)**end)) |
while (isdigit((unsigned char)**end)) |
Line 215 mandoc_escape(const char **end, const char **start, in |
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Line 218 mandoc_escape(const char **end, const char **start, in |
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*sz = *end - *start; |
*sz = *end - *start; |
if ('\0' != **end) |
if ('\0' != **end) |
(*end)++; |
(*end)++; |
return(ESCAPE_NUMBERED); |
return ESCAPE_NUMBERED; |
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/* |
/* |
* Sizes get a special category of their own. |
* Sizes get a special category of their own. |
Line 225 mandoc_escape(const char **end, const char **start, in |
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Line 228 mandoc_escape(const char **end, const char **start, in |
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/* See +/- counts as a sign. */ |
/* See +/- counts as a sign. */ |
if ('+' == **end || '-' == **end || ASCII_HYPH == **end) |
if ('+' == **end || '-' == **end || ASCII_HYPH == **end) |
(*end)++; |
*start = ++*end; |
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switch (**end) { |
switch (**end) { |
case '(': |
case '(': |
Line 240 mandoc_escape(const char **end, const char **start, in |
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Line 243 mandoc_escape(const char **end, const char **start, in |
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*start = ++*end; |
*start = ++*end; |
term = '\''; |
term = '\''; |
break; |
break; |
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case '3': |
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case '2': |
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case '1': |
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*sz = (*end)[-1] == 's' && |
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isdigit((unsigned char)(*end)[1]) ? 2 : 1; |
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break; |
default: |
default: |
*sz = 1; |
*sz = 1; |
break; |
break; |
Line 269 mandoc_escape(const char **end, const char **start, in |
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Line 278 mandoc_escape(const char **end, const char **start, in |
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while (**end != term) { |
while (**end != term) { |
switch (**end) { |
switch (**end) { |
case '\0': |
case '\0': |
return(ESCAPE_ERROR); |
return ESCAPE_ERROR; |
case '\\': |
case '\\': |
(*end)++; |
(*end)++; |
if (ESCAPE_ERROR == |
if (ESCAPE_ERROR == |
mandoc_escape(end, NULL, NULL)) |
mandoc_escape(end, NULL, NULL)) |
return(ESCAPE_ERROR); |
return ESCAPE_ERROR; |
break; |
break; |
default: |
default: |
(*end)++; |
(*end)++; |
Line 285 mandoc_escape(const char **end, const char **start, in |
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Line 294 mandoc_escape(const char **end, const char **start, in |
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} else { |
} else { |
assert(*sz > 0); |
assert(*sz > 0); |
if ((size_t)*sz > strlen(*start)) |
if ((size_t)*sz > strlen(*start)) |
return(ESCAPE_ERROR); |
return ESCAPE_ERROR; |
*end += *sz; |
*end += *sz; |
} |
} |
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Line 293 mandoc_escape(const char **end, const char **start, in |
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Line 302 mandoc_escape(const char **end, const char **start, in |
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switch (gly) { |
switch (gly) { |
case ESCAPE_FONT: |
case ESCAPE_FONT: |
if (2 == *sz) { |
if (*sz == 2) { |
if ('C' == **start) { |
if (**start == 'C') { |
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if ((*start)[1] == 'W' || |
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(*start)[1] == 'R') { |
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gly = ESCAPE_FONTCW; |
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break; |
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} |
/* |
/* |
* Treat constant-width font modes |
* Treat other constant-width font modes |
* just like regular font modes. |
* just like regular font modes. |
*/ |
*/ |
(*start)++; |
(*start)++; |
(*sz)--; |
(*sz)--; |
} else { |
} else { |
if ('B' == (*start)[0] && 'I' == (*start)[1]) |
if ((*start)[0] == 'B' && (*start)[1] == 'I') |
gly = ESCAPE_FONTBI; |
gly = ESCAPE_FONTBI; |
break; |
break; |
} |
} |
} else if (1 != *sz) |
} else if (*sz != 1) { |
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if (*sz == 0) |
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gly = ESCAPE_FONTPREV; |
break; |
break; |
|
} |
|
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switch (**start) { |
switch (**start) { |
case '3': |
case '3': |
/* FALLTHROUGH */ |
|
case 'B': |
case 'B': |
gly = ESCAPE_FONTBOLD; |
gly = ESCAPE_FONTBOLD; |
break; |
break; |
case '2': |
case '2': |
/* FALLTHROUGH */ |
|
case 'I': |
case 'I': |
gly = ESCAPE_FONTITALIC; |
gly = ESCAPE_FONTITALIC; |
break; |
break; |
Line 324 mandoc_escape(const char **end, const char **start, in |
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Line 339 mandoc_escape(const char **end, const char **start, in |
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gly = ESCAPE_FONTPREV; |
gly = ESCAPE_FONTPREV; |
break; |
break; |
case '1': |
case '1': |
/* FALLTHROUGH */ |
|
case 'R': |
case 'R': |
gly = ESCAPE_FONTROMAN; |
gly = ESCAPE_FONTROMAN; |
break; |
break; |
} |
} |
break; |
break; |
case ESCAPE_SPECIAL: |
case ESCAPE_SPECIAL: |
if (1 == *sz && 'c' == **start) |
if (**start == 'c') { |
gly = ESCAPE_NOSPACE; |
if (*sz == 1) { |
|
gly = ESCAPE_NOSPACE; |
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break; |
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} |
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if (*sz < 6 || *sz > 7 || |
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strncmp(*start, "char", 4) != 0 || |
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(int)strspn(*start + 4, "0123456789") + 4 < *sz) |
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break; |
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c = 0; |
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for (i = 4; i < *sz; i++) |
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c = 10 * c + ((*start)[i] - '0'); |
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if (c < 0x21 || (c > 0x7e && c < 0xa0) || c > 0xff) |
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break; |
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*start += 4; |
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*sz -= 4; |
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gly = ESCAPE_NUMBERED; |
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break; |
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} |
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/* |
/* |
* Unicode escapes are defined in groff as \[u0000] |
* Unicode escapes are defined in groff as \[u0000] |
* to \[u10FFFF], where the contained value must be |
* to \[u10FFFF], where the contained value must be |
Line 345 mandoc_escape(const char **end, const char **start, in |
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Line 377 mandoc_escape(const char **end, const char **start, in |
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break; |
break; |
if (*sz == 6 && (*start)[1] == '0') |
if (*sz == 6 && (*start)[1] == '0') |
break; |
break; |
|
if (*sz == 5 && (*start)[1] == 'D' && |
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strchr("89ABCDEF", (*start)[2]) != NULL) |
|
break; |
if ((int)strspn(*start + 1, "0123456789ABCDEFabcdef") |
if ((int)strspn(*start + 1, "0123456789ABCDEFabcdef") |
+ 1 == *sz) |
+ 1 == *sz) |
gly = ESCAPE_UNICODE; |
gly = ESCAPE_UNICODE; |
Line 353 mandoc_escape(const char **end, const char **start, in |
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Line 388 mandoc_escape(const char **end, const char **start, in |
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break; |
break; |
} |
} |
|
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return(gly); |
return gly; |
} |
} |
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/* |
/* |
Line 448 mandoc_getarg(struct mparse *parse, char **cpp, int ln |
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Line 483 mandoc_getarg(struct mparse *parse, char **cpp, int ln |
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if ('\0' == *cp && (white || ' ' == cp[-1])) |
if ('\0' == *cp && (white || ' ' == cp[-1])) |
mandoc_msg(MANDOCERR_SPACE_EOL, parse, ln, *pos, NULL); |
mandoc_msg(MANDOCERR_SPACE_EOL, parse, ln, *pos, NULL); |
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return(start); |
return start; |
} |
} |
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static int |
static int |
Line 465 a2time(time_t *t, const char *fmt, const char *p) |
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Line 500 a2time(time_t *t, const char *fmt, const char *p) |
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#endif |
#endif |
if (NULL != pp && '\0' == *pp) { |
if (NULL != pp && '\0' == *pp) { |
*t = mktime(&tm); |
*t = mktime(&tm); |
return(1); |
return 1; |
} |
} |
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return(0); |
return 0; |
} |
} |
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static char * |
static char * |
Line 480 time2a(time_t t) |
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Line 515 time2a(time_t t) |
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int isz; |
int isz; |
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tm = localtime(&t); |
tm = localtime(&t); |
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if (tm == NULL) |
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return NULL; |
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/* |
/* |
* Reserve space: |
* Reserve space: |
Line 487 time2a(time_t t) |
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Line 524 time2a(time_t t) |
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* up to 2 characters for the day + comma + blank |
* up to 2 characters for the day + comma + blank |
* 4 characters for the year and a terminating '\0' |
* 4 characters for the year and a terminating '\0' |
*/ |
*/ |
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p = buf = mandoc_malloc(10 + 4 + 4 + 1); |
p = buf = mandoc_malloc(10 + 4 + 4 + 1); |
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if (0 == (ssz = strftime(p, 10 + 1, "%B ", tm))) |
if ((ssz = strftime(p, 10 + 1, "%B ", tm)) == 0) |
goto fail; |
goto fail; |
p += (int)ssz; |
p += (int)ssz; |
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if (-1 == (isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday))) |
/* |
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* The output format is just "%d" here, not "%2d" or "%02d". |
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* That's also the reason why we can't just format the |
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* date as a whole with "%B %e, %Y" or "%B %d, %Y". |
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* Besides, the present approach is less prone to buffer |
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* overflows, in case anybody should ever introduce the bug |
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* of looking at LC_TIME. |
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*/ |
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if ((isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday)) == -1) |
goto fail; |
goto fail; |
p += isz; |
p += isz; |
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if (0 == strftime(p, 4 + 1, "%Y", tm)) |
if (strftime(p, 4 + 1, "%Y", tm) == 0) |
goto fail; |
goto fail; |
return(buf); |
return buf; |
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fail: |
fail: |
free(buf); |
free(buf); |
return(NULL); |
return NULL; |
} |
} |
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char * |
char * |
mandoc_normdate(struct mparse *parse, char *in, int ln, int pos) |
mandoc_normdate(struct roff_man *man, char *in, int ln, int pos) |
{ |
{ |
char *out; |
char *cp; |
time_t t; |
time_t t; |
|
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if (NULL == in || '\0' == *in || |
/* No date specified: use today's date. */ |
0 == strcmp(in, "$" "Mdocdate$")) { |
|
mandoc_msg(MANDOCERR_DATE_MISSING, parse, ln, pos, NULL); |
if (in == NULL || *in == '\0' || strcmp(in, "$" "Mdocdate$") == 0) { |
time(&t); |
mandoc_msg(MANDOCERR_DATE_MISSING, man->parse, ln, pos, NULL); |
|
return time2a(time(NULL)); |
} |
} |
else if (a2time(&t, "%Y-%m-%d", in)) |
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t = 0; |
/* Valid mdoc(7) date format. */ |
else if (!a2time(&t, "$" "Mdocdate: %b %d %Y $", in) && |
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!a2time(&t, "%b %d, %Y", in)) { |
if (a2time(&t, "$" "Mdocdate: %b %d %Y $", in) || |
mandoc_msg(MANDOCERR_DATE_BAD, parse, ln, pos, in); |
a2time(&t, "%b %d, %Y", in)) { |
t = 0; |
cp = time2a(t); |
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if (t > time(NULL) + 86400) |
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mandoc_msg(MANDOCERR_DATE_FUTURE, man->parse, |
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ln, pos, cp); |
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else if (*in != '$' && strcmp(in, cp) != 0) |
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mandoc_msg(MANDOCERR_DATE_NORM, man->parse, |
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ln, pos, cp); |
|
return cp; |
} |
} |
out = t ? time2a(t) : NULL; |
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return(out ? out : mandoc_strdup(in)); |
/* In man(7), do not warn about the legacy format. */ |
|
|
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if (a2time(&t, "%Y-%m-%d", in) == 0) |
|
mandoc_msg(MANDOCERR_DATE_BAD, man->parse, ln, pos, in); |
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else if (t > time(NULL) + 86400) |
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mandoc_msg(MANDOCERR_DATE_FUTURE, man->parse, ln, pos, in); |
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else if (man->macroset == MACROSET_MDOC) |
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mandoc_vmsg(MANDOCERR_DATE_LEGACY, man->parse, |
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ln, pos, "Dd %s", in); |
|
|
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/* Use any non-mdoc(7) date verbatim. */ |
|
|
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return mandoc_strdup(in); |
} |
} |
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int |
int |
Line 535 mandoc_eos(const char *p, size_t sz) |
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Line 602 mandoc_eos(const char *p, size_t sz) |
|
int enclosed, found; |
int enclosed, found; |
|
|
if (0 == sz) |
if (0 == sz) |
return(0); |
return 0; |
|
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/* |
/* |
* End-of-sentence recognition must include situations where |
* End-of-sentence recognition must include situations where |
Line 547 mandoc_eos(const char *p, size_t sz) |
|
Line 614 mandoc_eos(const char *p, size_t sz) |
|
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 */ |
|
case '\'': |
case '\'': |
/* FALLTHROUGH */ |
|
case ']': |
case ']': |
/* FALLTHROUGH */ |
|
case ')': |
case ')': |
if (0 == found) |
if (0 == found) |
enclosed = 1; |
enclosed = 1; |
break; |
break; |
case '.': |
case '.': |
/* FALLTHROUGH */ |
|
case '!': |
case '!': |
/* FALLTHROUGH */ |
|
case '?': |
case '?': |
found = 1; |
found = 1; |
break; |
break; |
default: |
default: |
return(found && (!enclosed || isalnum((unsigned char)*q))); |
return found && |
|
(!enclosed || isalnum((unsigned char)*q)); |
} |
} |
} |
} |
|
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return(found && !enclosed); |
return found && !enclosed; |
} |
} |
|
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/* |
/* |
Line 583 mandoc_strntoi(const char *p, size_t sz, int base) |
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Line 646 mandoc_strntoi(const char *p, size_t sz, int base) |
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long v; |
long v; |
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if (sz > 31) |
if (sz > 31) |
return(-1); |
return -1; |
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memcpy(buf, p, sz); |
memcpy(buf, p, sz); |
buf[(int)sz] = '\0'; |
buf[(int)sz] = '\0'; |
Line 592 mandoc_strntoi(const char *p, size_t sz, int base) |
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Line 655 mandoc_strntoi(const char *p, size_t sz, int base) |
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v = strtol(buf, &ep, base); |
v = strtol(buf, &ep, base); |
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if (buf[0] == '\0' || *ep != '\0') |
if (buf[0] == '\0' || *ep != '\0') |
return(-1); |
return -1; |
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if (v > INT_MAX) |
if (v > INT_MAX) |
v = INT_MAX; |
v = INT_MAX; |
if (v < INT_MIN) |
if (v < INT_MIN) |
v = INT_MIN; |
v = INT_MIN; |
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return((int)v); |
return (int)v; |
} |
} |