version 1.19, 2010/06/19 20:46:28 |
version 1.23, 2010/07/18 17:00:26 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
* |
* |
* 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 "libmandoc.h" |
#include "libmandoc.h" |
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static int a2time(time_t *, const char *, const char *); |
static int a2time(time_t *, const char *, const char *); |
static int spec_norm(char *, int); |
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/* |
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* "Normalise" a special string by converting its ASCII_HYPH entries |
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* into actual hyphens. |
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*/ |
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static int |
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spec_norm(char *p, int sz) |
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{ |
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int i; |
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for (i = 0; i < sz; i++) |
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if (ASCII_HYPH == p[i]) |
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p[i] = '-'; |
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return(sz); |
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} |
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int |
int |
mandoc_special(char *p) |
mandoc_special(char *p) |
{ |
{ |
int terminator; /* Terminator for \s. */ |
int len, i; |
int lim; /* Limit for N in \s. */ |
char term; |
int c, i; |
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char *sv; |
char *sv; |
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len = 0; |
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term = '\0'; |
sv = p; |
sv = p; |
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if ('\\' != *p++) |
assert('\\' == *p); |
return(spec_norm(sv, 0)); |
p++; |
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switch (*p) { |
switch (*p++) { |
case ('\''): |
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/* FALLTHROUGH */ |
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case ('`'): |
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/* FALLTHROUGH */ |
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case ('q'): |
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/* FALLTHROUGH */ |
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case (ASCII_HYPH): |
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/* FALLTHROUGH */ |
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case ('-'): |
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/* FALLTHROUGH */ |
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case ('~'): |
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/* FALLTHROUGH */ |
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case ('^'): |
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/* FALLTHROUGH */ |
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case ('%'): |
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/* FALLTHROUGH */ |
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case ('0'): |
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/* FALLTHROUGH */ |
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case (' '): |
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/* FALLTHROUGH */ |
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case ('}'): |
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/* FALLTHROUGH */ |
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case ('|'): |
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/* FALLTHROUGH */ |
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case ('&'): |
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/* FALLTHROUGH */ |
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case ('.'): |
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/* FALLTHROUGH */ |
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case (':'): |
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/* FALLTHROUGH */ |
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case ('c'): |
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/* FALLTHROUGH */ |
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case ('e'): |
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return(spec_norm(sv, 2)); |
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case ('s'): |
case ('s'): |
if ('\0' == *++p) |
if (ASCII_HYPH == *p) |
return(spec_norm(sv, 2)); |
*p = '-'; |
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if ('+' == *p || '-' == *p) |
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p++; |
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c = 2; |
i = ('s' != *(p - 1)); |
terminator = 0; |
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lim = 1; |
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if (*p == '\'') { |
switch (*p++) { |
lim = 0; |
case ('('): |
terminator = 1; |
len = 2; |
++p; |
break; |
++c; |
case ('['): |
} else if (*p == '[') { |
term = ']'; |
lim = 0; |
break; |
terminator = 2; |
case ('\''): |
++p; |
term = '\''; |
++c; |
break; |
} else if (*p == '(') { |
default: |
lim = 2; |
len = 1; |
terminator = 3; |
p--; |
++p; |
break; |
++c; |
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} |
} |
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if (*p == '+' || *p == '-') { |
if (ASCII_HYPH == *p) |
++p; |
*p = '-'; |
++c; |
if ('+' == *p || '-' == *p) { |
} |
if (i++) |
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return(0); |
if (*p == '\'') { |
p++; |
if (terminator) |
} |
return(spec_norm(sv, 0)); |
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lim = 0; |
if (0 == i) |
terminator = 1; |
return(0); |
++p; |
break; |
++c; |
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} else if (*p == '[') { |
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if (terminator) |
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return(spec_norm(sv, 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(spec_norm(sv, 0)); |
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lim = 2; |
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terminator = 3; |
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++p; |
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++c; |
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} |
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/* TODO: needs to handle floating point. */ |
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if ( ! isdigit((u_char)*p)) |
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return(spec_norm(sv, 0)); |
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for (i = 0; isdigit((u_char)*p); i++) { |
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if (lim && i >= lim) |
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break; |
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++p; |
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++c; |
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} |
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if (terminator && terminator < 3) { |
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if (1 == terminator && *p != '\'') |
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return(spec_norm(sv, 0)); |
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if (2 == terminator && *p != ']') |
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return(spec_norm(sv, 0)); |
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++p; |
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++c; |
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} |
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return(spec_norm(sv, c)); |
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case ('f'): |
case ('f'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('F'): |
case ('F'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('*'): |
case ('*'): |
if ('\0' == *++p || isspace((u_char)*p)) |
switch (*p++) { |
return(spec_norm(sv, 0)); |
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switch (*p) { |
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case ('('): |
case ('('): |
if ('\0' == *++p || isspace((u_char)*p)) |
len = 2; |
return(spec_norm(sv, 0)); |
break; |
return(spec_norm(sv, 4)); |
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case ('['): |
case ('['): |
for (c = 3, p++; *p && ']' != *p; p++, c++) |
term = ']'; |
if (isspace((u_char)*p)) |
break; |
break; |
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return(spec_norm(sv, *p == ']' ? c : 0)); |
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default: |
default: |
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len = 1; |
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p--; |
break; |
break; |
} |
} |
return(spec_norm(sv, 3)); |
break; |
case ('('): |
case ('('): |
if ('\0' == *++p || isspace((u_char)*p)) |
len = 2; |
return(spec_norm(sv, 0)); |
break; |
if ('\0' == *++p || isspace((u_char)*p)) |
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return(spec_norm(sv, 0)); |
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return(spec_norm(sv, 4)); |
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case ('['): |
case ('['): |
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term = ']'; |
break; |
break; |
default: |
default: |
return(spec_norm(sv, 0)); |
len = 1; |
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p--; |
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break; |
} |
} |
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for (c = 3, p++; *p && ']' != *p; p++, c++) |
if (term) { |
if (isspace((u_char)*p)) |
for ( ; *p && term != *p; p++) |
break; |
if (ASCII_HYPH == *p) |
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*p = '-'; |
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return(*p ? p - sv : 0); |
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} |
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return(spec_norm(sv, *p == ']' ? c : 0)); |
for (i = 0; *p && i < len; i++, p++) |
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if (ASCII_HYPH == *p) |
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*p = '-'; |
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return(i == len ? p - sv : 0); |
} |
} |
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Line 328 mandoc_a2time(int flags, const char *p) |
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Line 240 mandoc_a2time(int flags, const char *p) |
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int |
int |
mandoc_eos(const char *p, size_t sz) |
mandoc_eos(const char *p, size_t sz, int enclosed) |
{ |
{ |
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const char *q; |
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int found; |
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if (0 == sz) |
if (0 == sz) |
return(0); |
return(0); |
Line 340 mandoc_eos(const char *p, size_t sz) |
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Line 254 mandoc_eos(const char *p, size_t sz) |
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* propogate outward. |
* propogate outward. |
*/ |
*/ |
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for ( ; sz; sz--) { |
found = 0; |
switch (p[(int)sz - 1]) { |
for (q = p + sz - 1; q >= p; q--) { |
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switch (*q) { |
case ('\"'): |
case ('\"'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('\''): |
case ('\''): |
Line 349 mandoc_eos(const char *p, size_t sz) |
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Line 264 mandoc_eos(const char *p, size_t sz) |
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case (']'): |
case (']'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (')'): |
case (')'): |
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if (0 == found) |
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enclosed = 1; |
break; |
break; |
case ('.'): |
case ('.'): |
/* Escaped periods. */ |
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if (sz > 1 && '\\' == p[(int)sz - 2]) |
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return(0); |
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/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('!'): |
case ('!'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('?'): |
case ('?'): |
return(1); |
found = 1; |
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break; |
default: |
default: |
return(0); |
return(found && (!enclosed || isalnum(*q))); |
} |
} |
} |
} |
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return(0); |
return(found && !enclosed); |
} |
} |
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