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