1 /* 2 * 3 * Copyright (c) 1998-2002 4 * John Maddock 5 * 6 * Use, modification and distribution are subject to the 7 * Boost Software License, Version 1.0. (See accompanying file 8 * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 9 * 10 */ 11 12 /* 13 * LOCATION: see http://www.boost.org for most recent version. 14 * FILE regbase.cpp 15 * VERSION see <boost/version.hpp> 16 * DESCRIPTION: Declares class regbase. 17 */ 18 19 #ifndef BOOST_REGEX_V4_REGBASE_HPP 20 #define BOOST_REGEX_V4_REGBASE_HPP 21 22 #ifdef BOOST_MSVC 23 #pragma warning(push) 24 #pragma warning(disable: 4103) 25 #endif 26 #ifdef BOOST_HAS_ABI_HEADERS 27 # include BOOST_ABI_PREFIX 28 #endif 29 #ifdef BOOST_MSVC 30 #pragma warning(pop) 31 #endif 32 33 namespace boost{ 34 // 35 // class regbase 36 // handles error codes and flags 37 // 38 class BOOST_REGEX_DECL regbase 39 { 40 public: 41 enum flag_type_ 42 { 43 // 44 // Divide the flags up into logical groups: 45 // bits 0-7 indicate main synatx type. 46 // bits 8-15 indicate syntax subtype. 47 // bits 16-31 indicate options that are common to all 48 // regex syntaxes. 49 // In all cases the default is 0. 50 // 51 // Main synatx group: 52 // 53 perl_syntax_group = 0, // default 54 basic_syntax_group = 1, // POSIX basic 55 literal = 2, // all characters are literals 56 main_option_type = literal | basic_syntax_group | perl_syntax_group, // everything! 57 // 58 // options specific to perl group: 59 // 60 no_bk_refs = 1 << 8, // \d not allowed 61 no_perl_ex = 1 << 9, // disable perl extensions 62 no_mod_m = 1 << 10, // disable Perl m modifier 63 mod_x = 1 << 11, // Perl x modifier 64 mod_s = 1 << 12, // force s modifier on (overrides match_not_dot_newline) 65 no_mod_s = 1 << 13, // force s modifier off (overrides match_not_dot_newline) 66 67 // 68 // options specific to basic group: 69 // 70 no_char_classes = 1 << 8, // [[:CLASS:]] not allowed 71 no_intervals = 1 << 9, // {x,y} not allowed 72 bk_plus_qm = 1 << 10, // uses \+ and \? 73 bk_vbar = 1 << 11, // use \| for alternatives 74 emacs_ex = 1 << 12, // enables emacs extensions 75 76 // 77 // options common to all groups: 78 // 79 no_escape_in_lists = 1 << 16, // '\' not special inside [...] 80 newline_alt = 1 << 17, // \n is the same as | 81 no_except = 1 << 18, // no exception on error 82 failbit = 1 << 19, // error flag 83 icase = 1 << 20, // characters are matched regardless of case 84 nocollate = 0, // don't use locale specific collation (deprecated) 85 collate = 1 << 21, // use locale specific collation 86 nosubs = 1 << 22, // don't mark sub-expressions 87 save_subexpression_location = 1 << 23, // save subexpression locations 88 no_empty_expressions = 1 << 24, // no empty expressions allowed 89 optimize = 0, // not really supported 90 91 92 93 basic = basic_syntax_group | collate | no_escape_in_lists, 94 extended = no_bk_refs | collate | no_perl_ex | no_escape_in_lists, 95 normal = 0, 96 emacs = basic_syntax_group | collate | emacs_ex | bk_vbar, 97 awk = no_bk_refs | collate | no_perl_ex, 98 grep = basic | newline_alt, 99 egrep = extended | newline_alt, 100 sed = basic, 101 perl = normal, 102 ECMAScript = normal, 103 JavaScript = normal, 104 JScript = normal 105 }; 106 typedef unsigned int flag_type; 107 108 enum restart_info 109 { 110 restart_any = 0, 111 restart_word = 1, 112 restart_line = 2, 113 restart_buf = 3, 114 restart_continue = 4, 115 restart_lit = 5, 116 restart_fixed_lit = 6, 117 restart_count = 7 118 }; 119 }; 120 121 // 122 // provide std lib proposal compatible constants: 123 // 124 namespace regex_constants{ 125 126 enum flag_type_ 127 { 128 129 no_except = ::boost::regbase::no_except, 130 failbit = ::boost::regbase::failbit, 131 literal = ::boost::regbase::literal, 132 icase = ::boost::regbase::icase, 133 nocollate = ::boost::regbase::nocollate, 134 collate = ::boost::regbase::collate, 135 nosubs = ::boost::regbase::nosubs, 136 optimize = ::boost::regbase::optimize, 137 bk_plus_qm = ::boost::regbase::bk_plus_qm, 138 bk_vbar = ::boost::regbase::bk_vbar, 139 no_intervals = ::boost::regbase::no_intervals, 140 no_char_classes = ::boost::regbase::no_char_classes, 141 no_escape_in_lists = ::boost::regbase::no_escape_in_lists, 142 no_mod_m = ::boost::regbase::no_mod_m, 143 mod_x = ::boost::regbase::mod_x, 144 mod_s = ::boost::regbase::mod_s, 145 no_mod_s = ::boost::regbase::no_mod_s, 146 save_subexpression_location = ::boost::regbase::save_subexpression_location, 147 no_empty_expressions = ::boost::regbase::no_empty_expressions, 148 149 basic = ::boost::regbase::basic, 150 extended = ::boost::regbase::extended, 151 normal = ::boost::regbase::normal, 152 emacs = ::boost::regbase::emacs, 153 awk = ::boost::regbase::awk, 154 grep = ::boost::regbase::grep, 155 egrep = ::boost::regbase::egrep, 156 sed = basic, 157 perl = normal, 158 ECMAScript = normal, 159 JavaScript = normal, 160 JScript = normal 161 }; 162 typedef ::boost::regbase::flag_type syntax_option_type; 163 164 } // namespace regex_constants 165 166 } // namespace boost 167 168 #ifdef BOOST_MSVC 169 #pragma warning(push) 170 #pragma warning(disable: 4103) 171 #endif 172 #ifdef BOOST_HAS_ABI_HEADERS 173 # include BOOST_ABI_SUFFIX 174 #endif 175 #ifdef BOOST_MSVC 176 #pragma warning(pop) 177 #endif 178 179 #endif 180 181