/[pcre]/code/tags/pcre-3.9/maketables.c
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revision 29 by nigel, Sat Feb 24 21:38:53 2007 UTC revision 53 by nigel, Sat Feb 24 21:39:42 2007 UTC
# Line 8  and semantics are as close as possible t Line 8  and semantics are as close as possible t
8    
9  Written by: Philip Hazel <ph10@cam.ac.uk>  Written by: Philip Hazel <ph10@cam.ac.uk>
10    
11             Copyright (c) 1997-1999 University of Cambridge             Copyright (c) 1997-2001 University of Cambridge
12    
13  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
14  Permission is granted to anyone to use this software for any purpose on any  Permission is granted to anyone to use this software for any purpose on any
# Line 58  Arguments:   none Line 58  Arguments:   none
58  Returns:     pointer to the contiguous block of data  Returns:     pointer to the contiguous block of data
59  */  */
60    
61  unsigned const char *  const unsigned char *
62  pcre_maketables(void)  pcre_maketables(void)
63  {  {
64  unsigned char *yield, *p;  unsigned char *yield, *p;
65  int i;  int i;
66    
67  #ifndef DFTABLES  #ifndef DFTABLES
68  yield = (pcre_malloc)(tables_length);  yield = (unsigned char*)(pcre_malloc)(tables_length);
69  #else  #else
70  yield = malloc(tables_length);  yield = (unsigned char*)malloc(tables_length);
71  #endif  #endif
72    
73  if (yield == NULL) return NULL;  if (yield == NULL) return NULL;
# Line 81  for (i = 0; i < 256; i++) *p++ = tolower Line 81  for (i = 0; i < 256; i++) *p++ = tolower
81    
82  for (i = 0; i < 256; i++) *p++ = islower(i)? toupper(i) : tolower(i);  for (i = 0; i < 256; i++) *p++ = islower(i)? toupper(i) : tolower(i);
83    
84  /* Then the character class tables */  /* Then the character class tables. Don't try to be clever and save effort
85    on exclusive ones - in some locales things may be different. */
86    
87  memset(p, 0, cbit_length);  memset(p, 0, cbit_length);
88  for (i = 0; i < 256; i++)  for (i = 0; i < 256; i++)
89    {    {
90    if (isdigit(i)) p[cbit_digit  + i/8] |= 1 << (i&7);    if (isdigit(i))
91    if (isalnum(i) || i == '_')      {
92                    p[cbit_word   + i/8] |= 1 << (i&7);      p[cbit_digit  + i/8] |= 1 << (i&7);
93        p[cbit_word   + i/8] |= 1 << (i&7);
94        }
95      if (isupper(i))
96        {
97        p[cbit_upper  + i/8] |= 1 << (i&7);
98        p[cbit_word   + i/8] |= 1 << (i&7);
99        }
100      if (islower(i))
101        {
102        p[cbit_lower  + i/8] |= 1 << (i&7);
103        p[cbit_word   + i/8] |= 1 << (i&7);
104        }
105      if (i == '_')   p[cbit_word   + i/8] |= 1 << (i&7);
106    if (isspace(i)) p[cbit_space  + i/8] |= 1 << (i&7);    if (isspace(i)) p[cbit_space  + i/8] |= 1 << (i&7);
107      if (isxdigit(i))p[cbit_xdigit + i/8] |= 1 << (i&7);
108      if (isgraph(i)) p[cbit_graph  + i/8] |= 1 << (i&7);
109      if (isprint(i)) p[cbit_print  + i/8] |= 1 << (i&7);
110      if (ispunct(i)) p[cbit_punct  + i/8] |= 1 << (i&7);
111      if (iscntrl(i)) p[cbit_cntrl  + i/8] |= 1 << (i&7);
112    }    }
113  p += cbit_length;  p += cbit_length;
114    
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