Annotation of parser3/src/pcre/dftables.c, revision 1.2
1.1 paf 1: /*************************************************
2: * Perl-Compatible Regular Expressions *
3: *************************************************/
4:
5: /*
6: PCRE is a library of functions to support regular expressions whose syntax
7: and semantics are as close as possible to those of the Perl 5 language.
8:
9: Written by: Philip Hazel <ph10@cam.ac.uk>
10:
11: Copyright (c) 1997-1999 University of Cambridge
12:
13: -----------------------------------------------------------------------------
14: Permission is granted to anyone to use this software for any purpose on any
15: computer system, and to redistribute it freely, subject to the following
16: restrictions:
17:
18: 1. This software is distributed in the hope that it will be useful,
19: but WITHOUT ANY WARRANTY; without even the implied warranty of
20: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
21:
22: 2. The origin of this software must not be misrepresented, either by
23: explicit claim or by omission.
24:
25: 3. Altered versions must be plainly marked as such, and must not be
26: misrepresented as being the original software.
27:
28: 4. If PCRE is embedded in any software that is released under the GNU
29: General Purpose Licence (GPL), then the terms of that licence shall
30: supersede any condition above with which it is incompatible.
31: -----------------------------------------------------------------------------
32:
33: See the file Tech.Notes for some information on the internals.
34: */
35:
36:
37: /* This is a support program to generate the file chartables.c, containing
38: character tables of various kinds. They are built according to the default C
39: locale and used as the default tables by PCRE. Now that pcre_maketables is
40: a function visible to the outside world, we make use of its code from here in
41: order to be consistent. */
42:
43: #include <ctype.h>
44: #include <stdio.h>
45: #include <string.h>
46:
47: #include "internal.h"
48:
49: #define DFTABLES /* maketables.c notices this */
50: #include "maketables.c"
51:
52:
53: int main(void)
54: {
55: int i;
1.2 ! paf 56: unsigned const char *tables;
! 57: tables = pcre_maketables();
1.1 paf 58:
59: printf(
60: "/*************************************************\n"
61: "* Perl-Compatible Regular Expressions *\n"
62: "*************************************************/\n\n"
63: "/* This file is automatically written by the dftables auxiliary \n"
64: "program. If you edit it by hand, you might like to edit the Makefile to \n"
65: "prevent its ever being regenerated.\n\n"
66: "This file is #included in the compilation of pcre.c to build the default\n"
67: "character tables which are used when no tables are passed to the compile\n"
68: "function. */\n\n"
69: "static unsigned char pcre_default_tables[] = {\n\n"
70: "/* This table is a lower casing table. */\n\n");
71:
72: printf(" ");
73: for (i = 0; i < 256; i++)
74: {
75: if ((i & 7) == 0 && i != 0) printf("\n ");
76: printf("%3d", *tables++);
77: if (i != 255) printf(",");
78: }
79: printf(",\n\n");
80:
81: printf("/* This table is a case flipping table. */\n\n");
82:
83: printf(" ");
84: for (i = 0; i < 256; i++)
85: {
86: if ((i & 7) == 0 && i != 0) printf("\n ");
87: printf("%3d", *tables++);
88: if (i != 255) printf(",");
89: }
90: printf(",\n\n");
91:
92: printf(
93: "/* This table contains bit maps for digits, 'word' chars, and white\n"
94: "space. Each map is 32 bytes long and the bits run from the least\n"
95: "significant end of each byte. */\n\n");
96:
97: printf(" ");
98: for (i = 0; i < cbit_length; i++)
99: {
100: if ((i & 7) == 0 && i != 0)
101: {
102: if ((i & 31) == 0) printf("\n");
103: printf("\n ");
104: }
105: printf("0x%02x", *tables++);
106: if (i != cbit_length - 1) printf(",");
107: }
108: printf(" ,\n\n");
109:
110: printf(
111: "/* This table identifies various classes of character by individual bits:\n"
112: " 0x%02x white space character\n"
113: " 0x%02x letter\n"
114: " 0x%02x decimal digit\n"
115: " 0x%02x hexadecimal digit\n"
116: " 0x%02x alphanumeric or '_'\n"
117: " 0x%02x regular expression metacharacter or binary zero\n*/\n\n",
118: ctype_space, ctype_letter, ctype_digit, ctype_xdigit, ctype_word,
119: ctype_meta);
120:
121: printf(" ");
122: for (i = 0; i < 256; i++)
123: {
124: if ((i & 7) == 0 && i != 0)
125: {
126: printf(" /* ");
127: if (isprint(i-8)) printf(" %c -", i-8);
128: else printf("%3d-", i-8);
129: if (isprint(i-1)) printf(" %c ", i-1);
130: else printf("%3d", i-1);
131: printf(" */\n ");
132: }
133: printf("0x%02x", *tables++);
134: if (i != 255) printf(",");
135: }
136:
137: printf("};/* ");
138: if (isprint(i-8)) printf(" %c -", i-8);
139: else printf("%3d-", i-8);
140: if (isprint(i-1)) printf(" %c ", i-1);
141: else printf("%3d", i-1);
142: printf(" */\n\n/* End of chartables.c */\n");
143:
144: return 0;
145: }
146:
147: /* End of dftables.c */
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