1/************************************************* 2* Perl-Compatible Regular Expressions * 3*************************************************/ 4 5/* 6PCRE is a library of functions to support regular expressions whose syntax 7and semantics are as close as possible to those of the Perl 5 language. 8 9Written by: Philip Hazel <ph10@cam.ac.uk> 10 11 Copyright (c) 1997-2004 University of Cambridge 12 13----------------------------------------------------------------------------- 14Redistribution and use in source and binary forms, with or without 15modification, are permitted provided that the following conditions are met: 16 17 * Redistributions of source code must retain the above copyright notice, 18 this list of conditions and the following disclaimer. 19 20 * Redistributions in binary form must reproduce the above copyright 21 notice, this list of conditions and the following disclaimer in the 22 documentation and/or other materials provided with the distribution. 23 24 * Neither the name of the University of Cambridge nor the names of its 25 contributors may be used to endorse or promote products derived from 26 this software without specific prior written permission. 27 28THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 29AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 32LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38POSSIBILITY OF SUCH DAMAGE. 39----------------------------------------------------------------------------- 40*/ 41 42 43/* This is a support program to generate the file chartables.c, containing 44character tables of various kinds. They are built according to the default C 45locale and used as the default tables by PCRE. Now that pcre_maketables is 46a function visible to the outside world, we make use of its code from here in 47order to be consistent. */ 48 49#include <ctype.h> 50#include <stdio.h> 51#include <string.h> 52 53#include "internal.h" 54 55#define DFTABLES /* maketables.c notices this */ 56#include "maketables.c" 57 58 59int main(int argc, char **argv) 60{ 61int i; 62FILE *f; 63const unsigned char *tables = pcre_maketables(); 64 65if (argc != 2) 66 { 67 fprintf(stderr, "dftables: one filename argument is required\n"); 68 return 1; 69 } 70 71f = fopen(argv[1], "w"); 72if (f == NULL) 73 { 74 fprintf(stderr, "dftables: failed to open %s for writing\n", argv[1]); 75 return 1; 76 } 77 78/* There are two fprintf() calls here, because gcc in pedantic mode complains 79about the very long string otherwise. */ 80 81fprintf(f, 82 "/*************************************************\n" 83 "* Perl-Compatible Regular Expressions *\n" 84 "*************************************************/\n\n" 85 "/* This file is automatically written by the dftables auxiliary \n" 86 "program. If you edit it by hand, you might like to edit the Makefile to \n" 87 "prevent its ever being regenerated.\n\n"); 88fprintf(f, 89 "This file is #included in the compilation of pcre.c to build the default\n" 90 "character tables which are used when no tables are passed to the compile\n" 91 "function. */\n\n" 92 "static unsigned char pcre_default_tables[] = {\n\n" 93 "/* This table is a lower casing table. */\n\n"); 94 95fprintf(f, " "); 96for (i = 0; i < 256; i++) 97 { 98 if ((i & 7) == 0 && i != 0) fprintf(f, "\n "); 99 fprintf(f, "%3d", *tables++); 100 if (i != 255) fprintf(f, ","); 101 } 102fprintf(f, ",\n\n"); 103 104fprintf(f, "/* This table is a case flipping table. */\n\n"); 105 106fprintf(f, " "); 107for (i = 0; i < 256; i++) 108 { 109 if ((i & 7) == 0 && i != 0) fprintf(f, "\n "); 110 fprintf(f, "%3d", *tables++); 111 if (i != 255) fprintf(f, ","); 112 } 113fprintf(f, ",\n\n"); 114 115fprintf(f, 116 "/* This table contains bit maps for various character classes.\n" 117 "Each map is 32 bytes long and the bits run from the least\n" 118 "significant end of each byte. The classes that have their own\n" 119 "maps are: space, xdigit, digit, upper, lower, word, graph\n" 120 "print, punct, and cntrl. Other classes are built from combinations. */\n\n"); 121 122fprintf(f, " "); 123for (i = 0; i < cbit_length; i++) 124 { 125 if ((i & 7) == 0 && i != 0) 126 { 127 if ((i & 31) == 0) fprintf(f, "\n"); 128 fprintf(f, "\n "); 129 } 130 fprintf(f, "0x%02x", *tables++); 131 if (i != cbit_length - 1) fprintf(f, ","); 132 } 133fprintf(f, ",\n\n"); 134 135fprintf(f, 136 "/* This table identifies various classes of character by individual bits:\n" 137 " 0x%02x white space character\n" 138 " 0x%02x letter\n" 139 " 0x%02x decimal digit\n" 140 " 0x%02x hexadecimal digit\n" 141 " 0x%02x alphanumeric or '_'\n" 142 " 0x%02x regular expression metacharacter or binary zero\n*/\n\n", 143 ctype_space, ctype_letter, ctype_digit, ctype_xdigit, ctype_word, 144 ctype_meta); 145 146fprintf(f, " "); 147for (i = 0; i < 256; i++) 148 { 149 if ((i & 7) == 0 && i != 0) 150 { 151 fprintf(f, " /* "); 152 if (isprint(i-8)) fprintf(f, " %c -", i-8); 153 else fprintf(f, "%3d-", i-8); 154 if (isprint(i-1)) fprintf(f, " %c ", i-1); 155 else fprintf(f, "%3d", i-1); 156 fprintf(f, " */\n "); 157 } 158 fprintf(f, "0x%02x", *tables++); 159 if (i != 255) fprintf(f, ","); 160 } 161 162fprintf(f, "};/* "); 163if (isprint(i-8)) fprintf(f, " %c -", i-8); 164 else fprintf(f, "%3d-", i-8); 165if (isprint(i-1)) fprintf(f, " %c ", i-1); 166 else fprintf(f, "%3d", i-1); 167fprintf(f, " */\n\n/* End of chartables.c */\n"); 168 169fclose(f); 170return 0; 171} 172 173/* End of dftables.c */ 174