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| 1 |  |  |  |  |  |  | # | 
| 2 |  |  |  |  |  |  | #           WMLScript Language Specification Version 1.1 | 
| 3 |  |  |  |  |  |  | # | 
| 4 |  |  |  |  |  |  | #   Lexer module | 
| 5 |  |  |  |  |  |  | # | 
| 6 |  |  |  |  |  |  |  | 
| 7 |  |  |  |  |  |  | package WAP::wmls::lexer; | 
| 8 |  |  |  |  |  |  |  | 
| 9 | 1 |  |  | 1 |  | 119448 | use strict; | 
|  | 1 |  |  |  |  | 3 |  | 
|  | 1 |  |  |  |  | 35 |  | 
| 10 | 1 |  |  | 1 |  | 6 | use warnings; | 
|  | 1 |  |  |  |  | 1 |  | 
|  | 1 |  |  |  |  | 25 |  | 
| 11 | 1 |  |  | 1 |  | 5 | use bigint; | 
|  | 1 |  |  |  |  | 2 |  | 
|  | 1 |  |  |  |  | 9 |  | 
| 12 | 1 |  |  | 1 |  | 1279 | use bignum; | 
|  | 1 |  |  |  |  | 3 |  | 
|  | 1 |  |  |  |  | 9 |  | 
| 13 |  |  |  |  |  |  |  | 
| 14 |  |  |  |  |  |  | sub _DoubleStringLexer { | 
| 15 | 0 |  |  | 0 |  |  | my ($parser) = @_; | 
| 16 | 0 |  |  |  |  |  | my $str = q{}; | 
| 17 | 0 |  |  |  |  |  | my $type = 'STRING_LITERAL'; | 
| 18 |  |  |  |  |  |  |  | 
| 19 | 0 |  |  |  |  |  | while ($parser->YYData->{INPUT}) { | 
| 20 |  |  |  |  |  |  |  | 
| 21 | 0 |  |  |  |  |  | for ($parser->YYData->{INPUT}) { | 
| 22 |  |  |  |  |  |  |  | 
| 23 | 0 | 0 |  |  |  |  | s/^\"// | 
| 24 |  |  |  |  |  |  | and return ($type, $str); | 
| 25 |  |  |  |  |  |  |  | 
| 26 | 0 | 0 |  |  |  |  | s/^([^"\\]+)// | 
| 27 |  |  |  |  |  |  | and $str .= $1, | 
| 28 |  |  |  |  |  |  | last; | 
| 29 |  |  |  |  |  |  |  | 
| 30 | 0 | 0 |  |  |  |  | s/^\\(['"\\\/])// | 
| 31 |  |  |  |  |  |  | and $str .= $1,     #  single quote, double quote, backslash, slash | 
| 32 |  |  |  |  |  |  | last; | 
| 33 | 0 | 0 |  |  |  |  | s/^\\b// | 
| 34 |  |  |  |  |  |  | and $str .= "\b",   # backspace | 
| 35 |  |  |  |  |  |  | last; | 
| 36 | 0 | 0 |  |  |  |  | s/^\\f// | 
| 37 |  |  |  |  |  |  | and $str .= "\f",   # form feed | 
| 38 |  |  |  |  |  |  | last; | 
| 39 | 0 | 0 |  |  |  |  | s/^\\n// | 
| 40 |  |  |  |  |  |  | and $str .= "\n",   # new line | 
| 41 |  |  |  |  |  |  | last; | 
| 42 | 0 | 0 |  |  |  |  | s/^\\r// | 
| 43 |  |  |  |  |  |  | and $str .= "\r",   # carriage return | 
| 44 |  |  |  |  |  |  | last; | 
| 45 | 0 | 0 |  |  |  |  | s/^\\t// | 
| 46 |  |  |  |  |  |  | and $str .= "\t",   # horizontal tab | 
| 47 |  |  |  |  |  |  | last; | 
| 48 | 0 | 0 |  |  |  |  | if ($type eq 'UTF8_STRING_LITERAL') { | 
| 49 | 0 | 0 |  |  |  |  | s/^\\([0-7]{1,2})// | 
| 50 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 51 |  |  |  |  |  |  | last; | 
| 52 | 0 | 0 |  |  |  |  | s/^\\([0-3][0-7]{2})// | 
| 53 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 54 |  |  |  |  |  |  | last; | 
| 55 | 0 | 0 |  |  |  |  | s/^\\x([0-9A-Fa-f]{2})// | 
| 56 |  |  |  |  |  |  | and $str .= chr hex $1, | 
| 57 |  |  |  |  |  |  | last; | 
| 58 |  |  |  |  |  |  | } | 
| 59 |  |  |  |  |  |  | else { | 
| 60 | 0 | 0 |  |  |  |  | if ($parser->YYData->{encoding} eq 'iso-8859-1') { | 
| 61 | 0 | 0 |  |  |  |  | s/^\\([0-7]{1,2})// | 
| 62 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 63 |  |  |  |  |  |  | last; | 
| 64 | 0 | 0 |  |  |  |  | s/^\\([0-3][0-7]{2})// | 
| 65 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 66 |  |  |  |  |  |  | last; | 
| 67 | 0 | 0 |  |  |  |  | s/^\\x([0-9A-Fa-f]{2})// | 
| 68 |  |  |  |  |  |  | and $str .= chr hex $1, | 
| 69 |  |  |  |  |  |  | last; | 
| 70 |  |  |  |  |  |  | } | 
| 71 |  |  |  |  |  |  | else { | 
| 72 | 0 | 0 | 0 |  |  |  | s/^\\([0-7]{1,2})// | 
| 73 |  |  |  |  |  |  | and $type = 'UTF8_STRING_LITERAL', | 
| 74 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 75 |  |  |  |  |  |  | last; | 
| 76 | 0 | 0 | 0 |  |  |  | s/^\\([0-3][0-7]{2})// | 
| 77 |  |  |  |  |  |  | and $type = 'UTF8_STRING_LITERAL', | 
| 78 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 79 |  |  |  |  |  |  | last; | 
| 80 | 0 | 0 | 0 |  |  |  | s/^\\x([0-9A-Fa-f]{2})// | 
| 81 |  |  |  |  |  |  | and $type = 'UTF8_STRING_LITERAL', | 
| 82 |  |  |  |  |  |  | and $str .= chr hex $1, | 
| 83 |  |  |  |  |  |  | last; | 
| 84 |  |  |  |  |  |  | } | 
| 85 |  |  |  |  |  |  | } | 
| 86 | 0 | 0 |  |  |  |  | if ($type eq 'UTF8_STRING_LITERAL') { | 
| 87 | 0 | 0 |  |  |  |  | s/^\\u([0-9A-Fa-f]{4})// | 
| 88 |  |  |  |  |  |  | and $str .= pack('U', hex $1), | 
| 89 |  |  |  |  |  |  | last; | 
| 90 |  |  |  |  |  |  | } | 
| 91 |  |  |  |  |  |  | else { | 
| 92 | 0 | 0 | 0 |  |  |  | s/^\\u([0-9A-Fa-f]{4})// | 
| 93 |  |  |  |  |  |  | and $type = 'UTF8_STRING_LITERAL', | 
| 94 |  |  |  |  |  |  | and $str .= pack('U', hex $1), | 
| 95 |  |  |  |  |  |  | last; | 
| 96 |  |  |  |  |  |  | } | 
| 97 | 0 | 0 |  |  |  |  | s/^\\// | 
| 98 |  |  |  |  |  |  | and $parser->Error("Invalid escape sequence $_ .\n"), | 
| 99 |  |  |  |  |  |  | last; | 
| 100 |  |  |  |  |  |  | } | 
| 101 |  |  |  |  |  |  | } | 
| 102 |  |  |  |  |  |  |  | 
| 103 | 0 |  |  |  |  |  | $parser->Error("Untermined string.\n"); | 
| 104 | 0 |  |  |  |  |  | $parser->YYData->{lineno} ++; | 
| 105 | 0 |  |  |  |  |  | return ($type, $str); | 
| 106 |  |  |  |  |  |  | } | 
| 107 |  |  |  |  |  |  |  | 
| 108 |  |  |  |  |  |  | sub _SingleStringLexer { | 
| 109 | 0 |  |  | 0 |  |  | my ($parser) = @_; | 
| 110 | 0 |  |  |  |  |  | my $str = q{}; | 
| 111 | 0 |  |  |  |  |  | my $type = 'STRING_LITERAL'; | 
| 112 |  |  |  |  |  |  |  | 
| 113 | 0 |  |  |  |  |  | while ($parser->YYData->{INPUT}) { | 
| 114 |  |  |  |  |  |  |  | 
| 115 | 0 |  |  |  |  |  | for ($parser->YYData->{INPUT}) { | 
| 116 |  |  |  |  |  |  |  | 
| 117 | 0 | 0 |  |  |  |  | s/^'// | 
| 118 |  |  |  |  |  |  | and return ($type, $str); | 
| 119 |  |  |  |  |  |  |  | 
| 120 | 0 | 0 |  |  |  |  | s/^([^'\\]+)// | 
| 121 |  |  |  |  |  |  | and $str .= $1, | 
| 122 |  |  |  |  |  |  | last; | 
| 123 |  |  |  |  |  |  |  | 
| 124 | 0 | 0 |  |  |  |  | s/^\\(['"\\\/])// | 
| 125 |  |  |  |  |  |  | and $str .= $1,     #  single quote, double quote, backslash, slash | 
| 126 |  |  |  |  |  |  | last; | 
| 127 | 0 | 0 |  |  |  |  | s/^\\b// | 
| 128 |  |  |  |  |  |  | and $str .= "\b",   # backspace | 
| 129 |  |  |  |  |  |  | last; | 
| 130 | 0 | 0 |  |  |  |  | s/^\\f// | 
| 131 |  |  |  |  |  |  | and $str .= "\f",   # form feed | 
| 132 |  |  |  |  |  |  | last; | 
| 133 | 0 | 0 |  |  |  |  | s/^\\n// | 
| 134 |  |  |  |  |  |  | and $str .= "\n",   # new line | 
| 135 |  |  |  |  |  |  | last; | 
| 136 | 0 | 0 |  |  |  |  | s/^\\r// | 
| 137 |  |  |  |  |  |  | and $str .= "\r",   # carriage return | 
| 138 |  |  |  |  |  |  | last; | 
| 139 | 0 | 0 |  |  |  |  | s/^\\t// | 
| 140 |  |  |  |  |  |  | and $str .= "\t",   # horizontal tab | 
| 141 |  |  |  |  |  |  | last; | 
| 142 | 0 | 0 |  |  |  |  | if ($type eq 'UTF8_STRING_LITERAL') { | 
| 143 | 0 | 0 |  |  |  |  | s/^\\([0-7]{1,2})// | 
| 144 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 145 |  |  |  |  |  |  | last; | 
| 146 | 0 | 0 |  |  |  |  | s/^\\([0-3][0-7]{2})// | 
| 147 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 148 |  |  |  |  |  |  | last; | 
| 149 | 0 | 0 |  |  |  |  | s/^\\x([0-9A-Fa-f]{2})// | 
| 150 |  |  |  |  |  |  | and $str .= chr hex $1, | 
| 151 |  |  |  |  |  |  | last; | 
| 152 |  |  |  |  |  |  | } | 
| 153 |  |  |  |  |  |  | else { | 
| 154 | 0 | 0 |  |  |  |  | if ($parser->YYData->{encoding} eq 'iso-8859-1') { | 
| 155 | 0 | 0 |  |  |  |  | s/^\\([0-7]{1,2})// | 
| 156 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 157 |  |  |  |  |  |  | last; | 
| 158 | 0 | 0 |  |  |  |  | s/^\\([0-3][0-7]{2})// | 
| 159 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 160 |  |  |  |  |  |  | last; | 
| 161 | 0 | 0 |  |  |  |  | s/^\\x([0-9A-Fa-f]{2})// | 
| 162 |  |  |  |  |  |  | and $str .= chr hex $1, | 
| 163 |  |  |  |  |  |  | last; | 
| 164 |  |  |  |  |  |  | } | 
| 165 |  |  |  |  |  |  | else { | 
| 166 | 0 | 0 | 0 |  |  |  | s/^\\([0-7]{1,2})// | 
| 167 |  |  |  |  |  |  | and $type = 'UTF8_STRING_LITERAL', | 
| 168 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 169 |  |  |  |  |  |  | last; | 
| 170 | 0 | 0 | 0 |  |  |  | s/^\\([0-3][0-7]{2})// | 
| 171 |  |  |  |  |  |  | and $type = 'UTF8_STRING_LITERAL', | 
| 172 |  |  |  |  |  |  | and $str .= chr oct $1, | 
| 173 |  |  |  |  |  |  | last; | 
| 174 | 0 | 0 | 0 |  |  |  | s/^\\x([0-9A-Fa-f]{2})// | 
| 175 |  |  |  |  |  |  | and $type = 'UTF8_STRING_LITERAL', | 
| 176 |  |  |  |  |  |  | and $str .= chr hex $1, | 
| 177 |  |  |  |  |  |  | last; | 
| 178 |  |  |  |  |  |  | } | 
| 179 |  |  |  |  |  |  | } | 
| 180 | 0 | 0 |  |  |  |  | if ($type eq 'UTF8_STRING_LITERAL') { | 
| 181 | 0 | 0 |  |  |  |  | s/^\\u([0-9A-Fa-f]{4})// | 
| 182 |  |  |  |  |  |  | and $str .= pack('U', hex $1), | 
| 183 |  |  |  |  |  |  | last; | 
| 184 |  |  |  |  |  |  | } | 
| 185 |  |  |  |  |  |  | else { | 
| 186 | 0 | 0 | 0 |  |  |  | s/^\\u([0-9A-Fa-f]{4})// | 
| 187 |  |  |  |  |  |  | and $type = 'UTF8_STRING_LITERAL', | 
| 188 |  |  |  |  |  |  | and $str .= pack('U', hex $1), | 
| 189 |  |  |  |  |  |  | last; | 
| 190 |  |  |  |  |  |  | } | 
| 191 | 0 | 0 |  |  |  |  | s/^\\// | 
| 192 |  |  |  |  |  |  | and $parser->Error("Invalid escape sequence $_ .\n"), | 
| 193 |  |  |  |  |  |  | last; | 
| 194 |  |  |  |  |  |  | } | 
| 195 |  |  |  |  |  |  | } | 
| 196 |  |  |  |  |  |  |  | 
| 197 | 0 |  |  |  |  |  | $parser->Error("Untermined string.\n"); | 
| 198 | 0 |  |  |  |  |  | $parser->YYData->{lineno} ++; | 
| 199 | 0 |  |  |  |  |  | return ($type, $str); | 
| 200 |  |  |  |  |  |  | } | 
| 201 |  |  |  |  |  |  |  | 
| 202 |  |  |  |  |  |  | sub _Identifier { | 
| 203 | 0 |  |  | 0 |  |  | my ($parser, $ident) = @_; | 
| 204 |  |  |  |  |  |  |  | 
| 205 | 0 | 0 |  |  |  |  | if (exists $parser->YYData->{keyword}{$ident}) { | 
|  |  | 0 |  |  |  |  |  | 
| 206 | 0 |  |  |  |  |  | return ($parser->YYData->{keyword}{$ident}, $ident); | 
| 207 |  |  |  |  |  |  | } | 
| 208 |  |  |  |  |  |  | elsif (exists $parser->YYData->{invalid_keyword}{$ident}) { | 
| 209 | 0 |  |  |  |  |  | $parser->Error("Invalid keyword '$ident'.\n"); | 
| 210 |  |  |  |  |  |  | } | 
| 211 | 0 |  |  |  |  |  | return ('IDENTIFIER', $ident); | 
| 212 |  |  |  |  |  |  | } | 
| 213 |  |  |  |  |  |  |  | 
| 214 |  |  |  |  |  |  | sub _OctInteger { | 
| 215 | 0 |  |  | 0 |  |  | my ($parser, $str) = @_; | 
| 216 |  |  |  |  |  |  |  | 
| 217 | 0 |  |  |  |  |  | my $val = 0; | 
| 218 | 0 |  |  |  |  |  | foreach (split //, $str) { | 
| 219 | 0 |  |  |  |  |  | $val = $val * 8 + oct $_; | 
| 220 |  |  |  |  |  |  | } | 
| 221 | 0 |  |  |  |  |  | return ('INTEGER_LITERAL', $val); | 
| 222 |  |  |  |  |  |  | } | 
| 223 |  |  |  |  |  |  |  | 
| 224 |  |  |  |  |  |  | sub _HexInteger { | 
| 225 | 0 |  |  | 0 |  |  | my ($parser, $str) = @_; | 
| 226 |  |  |  |  |  |  |  | 
| 227 | 0 |  |  |  |  |  | my $val = 0; | 
| 228 | 0 |  |  |  |  |  | foreach (split //, $str) { | 
| 229 | 0 |  |  |  |  |  | $val = $val * 16 + hex $_; | 
| 230 |  |  |  |  |  |  | } | 
| 231 | 0 |  |  |  |  |  | return ('INTEGER_LITERAL', $val); | 
| 232 |  |  |  |  |  |  | } | 
| 233 |  |  |  |  |  |  |  | 
| 234 |  |  |  |  |  |  | sub _CommentLexer { | 
| 235 | 0 |  |  | 0 |  |  | my ($parser) = @_; | 
| 236 |  |  |  |  |  |  |  | 
| 237 | 0 |  |  |  |  |  | while (1) { | 
| 238 | 0 | 0 | 0 |  |  |  | $parser->YYData->{INPUT} | 
| 239 |  |  |  |  |  |  | or  $parser->YYData->{INPUT} = readline $parser->YYData->{fh} | 
| 240 |  |  |  |  |  |  | or  return; | 
| 241 |  |  |  |  |  |  |  | 
| 242 | 0 |  |  |  |  |  | for ($parser->YYData->{INPUT}) { | 
| 243 | 0 | 0 |  |  |  |  | s/^\n// | 
| 244 |  |  |  |  |  |  | and $parser->YYData->{lineno} ++, | 
| 245 |  |  |  |  |  |  | last; | 
| 246 | 0 | 0 |  |  |  |  | s/^\*\/// | 
| 247 |  |  |  |  |  |  | and return; | 
| 248 | 0 | 0 |  |  |  |  | s/^.// | 
| 249 |  |  |  |  |  |  | and last; | 
| 250 |  |  |  |  |  |  | } | 
| 251 |  |  |  |  |  |  | } | 
| 252 |  |  |  |  |  |  | } | 
| 253 |  |  |  |  |  |  |  | 
| 254 |  |  |  |  |  |  | sub _DocLexer { | 
| 255 | 0 |  |  | 0 |  |  | my ($parser) = @_; | 
| 256 |  |  |  |  |  |  |  | 
| 257 | 0 |  |  |  |  |  | $parser->YYData->{doc} = q{}; | 
| 258 | 0 |  |  |  |  |  | my $flag = 1; | 
| 259 | 0 |  |  |  |  |  | while (1) { | 
| 260 | 0 | 0 | 0 |  |  |  | $parser->YYData->{INPUT} | 
| 261 |  |  |  |  |  |  | or  $parser->YYData->{INPUT} = readline $parser->YYData->{fh} | 
| 262 |  |  |  |  |  |  | or  return; | 
| 263 |  |  |  |  |  |  |  | 
| 264 | 0 |  |  |  |  |  | for ($parser->YYData->{INPUT}) { | 
| 265 | 0 | 0 |  |  |  |  | s/^(\n)// | 
| 266 |  |  |  |  |  |  | and $parser->YYData->{lineno} ++, | 
| 267 |  |  |  |  |  |  | $parser->YYData->{doc} .= $1, | 
| 268 |  |  |  |  |  |  | $flag = 0, | 
| 269 |  |  |  |  |  |  | last; | 
| 270 | 0 | 0 |  |  |  |  | s/^\*\/// | 
| 271 |  |  |  |  |  |  | and return; | 
| 272 | 0 | 0 |  |  |  |  | unless ($flag) { | 
| 273 | 0 | 0 |  |  |  |  | s/^\*// | 
| 274 |  |  |  |  |  |  | and $flag = 1, | 
| 275 |  |  |  |  |  |  | last; | 
| 276 |  |  |  |  |  |  | } | 
| 277 |  |  |  |  |  |  | s/^([ \r\t\f\013]+)// | 
| 278 | 0 | 0 |  |  |  |  | and $parser->YYData->{doc} .= $1, | 
| 279 |  |  |  |  |  |  | last; | 
| 280 | 0 | 0 |  |  |  |  | s/^(.)// | 
| 281 |  |  |  |  |  |  | and $parser->YYData->{doc} .= $1, | 
| 282 |  |  |  |  |  |  | $flag = 1, | 
| 283 |  |  |  |  |  |  | last; | 
| 284 |  |  |  |  |  |  | } | 
| 285 |  |  |  |  |  |  | } | 
| 286 |  |  |  |  |  |  | } | 
| 287 |  |  |  |  |  |  |  | 
| 288 |  |  |  |  |  |  | sub Lexer { | 
| 289 | 0 |  |  | 0 | 0 |  | my ($parser) = @_; | 
| 290 |  |  |  |  |  |  |  | 
| 291 | 0 |  |  |  |  |  | while (1) { | 
| 292 | 0 | 0 | 0 |  |  |  | $parser->YYData->{INPUT} | 
| 293 |  |  |  |  |  |  | or  $parser->YYData->{INPUT} = readline $parser->YYData->{fh} | 
| 294 |  |  |  |  |  |  | or  return ('', undef); | 
| 295 |  |  |  |  |  |  |  | 
| 296 | 0 |  |  |  |  |  | for ($parser->YYData->{INPUT}) { | 
| 297 |  |  |  |  |  |  |  | 
| 298 | 0 |  |  |  |  |  | s/^[ \r\t\f\013]+//;                            # Whitespace | 
| 299 | 0 | 0 |  |  |  |  | s/^\n// | 
| 300 |  |  |  |  |  |  | and $parser->YYData->{lineno} ++, | 
| 301 |  |  |  |  |  |  | last; | 
| 302 |  |  |  |  |  |  |  | 
| 303 | 0 | 0 |  |  |  |  | s/^\/\*\*//                                     # documentation | 
| 304 |  |  |  |  |  |  | and _DocLexer($parser), | 
| 305 |  |  |  |  |  |  | last; | 
| 306 |  |  |  |  |  |  |  | 
| 307 | 0 | 0 |  |  |  |  | s/^\/\*//                                       # MultiLineComment | 
| 308 |  |  |  |  |  |  | and _CommentLexer($parser), | 
| 309 |  |  |  |  |  |  | last; | 
| 310 | 0 | 0 |  |  |  |  | s/^\/\/(.*)\n//                                 # SingleLineComment | 
| 311 |  |  |  |  |  |  | and $parser->YYData->{lineno} ++, | 
| 312 |  |  |  |  |  |  | last; | 
| 313 |  |  |  |  |  |  |  | 
| 314 | 0 | 0 |  |  |  |  | s/^([0-9]+\.[0-9]+[Ee][+\-]?[0-9]+)// | 
| 315 |  |  |  |  |  |  | and return ('FLOAT_LITERAL', $1); | 
| 316 | 0 | 0 |  |  |  |  | s/^([0-9]+[Ee][+\-]?[0-9]+)// | 
| 317 |  |  |  |  |  |  | and return ('FLOAT_LITERAL', $1); | 
| 318 | 0 | 0 |  |  |  |  | s/^(\.[0-9]+[Ee][+\-]?[0-9]+)// | 
| 319 |  |  |  |  |  |  | and return ('FLOAT_LITERAL', $1); | 
| 320 | 0 | 0 |  |  |  |  | s/^([0-9]+\.[0-9]+)// | 
| 321 |  |  |  |  |  |  | and return ('FLOAT_LITERAL', $1); | 
| 322 | 0 | 0 |  |  |  |  | s/^([0-9]+\.)// | 
| 323 |  |  |  |  |  |  | and return ('FLOAT_LITERAL', $1); | 
| 324 | 0 | 0 |  |  |  |  | s/^(\.[0-9]+)// | 
| 325 |  |  |  |  |  |  | and return ('FLOAT_LITERAL', $1); | 
| 326 |  |  |  |  |  |  |  | 
| 327 | 0 | 0 |  |  |  |  | s/^0([0-7]+)// | 
| 328 |  |  |  |  |  |  | and return _OctInteger($parser, $1); | 
| 329 | 0 | 0 |  |  |  |  | s/^0[Xx]([A-Fa-f0-9]+)// | 
| 330 |  |  |  |  |  |  | and return _HexInteger($parser, $1); | 
| 331 | 0 | 0 |  |  |  |  | s/^(0)// | 
| 332 |  |  |  |  |  |  | and return ('INTEGER_LITERAL', $1); | 
| 333 | 0 | 0 |  |  |  |  | s/^([1-9][0-9]*)// | 
| 334 |  |  |  |  |  |  | and return ('INTEGER_LITERAL', $1); | 
| 335 |  |  |  |  |  |  |  | 
| 336 | 0 | 0 |  |  |  |  | s/^\"// | 
| 337 |  |  |  |  |  |  | and return _DoubleStringLexer($parser); | 
| 338 |  |  |  |  |  |  |  | 
| 339 | 0 | 0 |  |  |  |  | s/^\'// | 
| 340 |  |  |  |  |  |  | and return _SingleStringLexer($parser); | 
| 341 |  |  |  |  |  |  |  | 
| 342 | 0 | 0 |  |  |  |  | s/^([A-Z_a-z][0-9A-Z_a-z]*)// | 
| 343 |  |  |  |  |  |  | and return _Identifier($parser, $1); | 
| 344 |  |  |  |  |  |  |  | 
| 345 | 0 | 0 |  |  |  |  | s/^(\+=)// | 
| 346 |  |  |  |  |  |  | and return ($1, $1); | 
| 347 | 0 | 0 |  |  |  |  | s/^(\-=)// | 
| 348 |  |  |  |  |  |  | and return ($1, $1); | 
| 349 | 0 | 0 |  |  |  |  | s/^(\*=)// | 
| 350 |  |  |  |  |  |  | and return ($1, $1); | 
| 351 | 0 | 0 |  |  |  |  | s/^(\/=)// | 
| 352 |  |  |  |  |  |  | and return ($1, $1); | 
| 353 | 0 | 0 |  |  |  |  | s/^(&=)// | 
| 354 |  |  |  |  |  |  | and return ($1, $1); | 
| 355 | 0 | 0 |  |  |  |  | s/^(\|=)// | 
| 356 |  |  |  |  |  |  | and return ($1, $1); | 
| 357 | 0 | 0 |  |  |  |  | s/^(\^=)// | 
| 358 |  |  |  |  |  |  | and return ($1, $1); | 
| 359 | 0 | 0 |  |  |  |  | s/^(%=)// | 
| 360 |  |  |  |  |  |  | and return ($1, $1); | 
| 361 | 0 | 0 |  |  |  |  | s/^(<<=)// | 
| 362 |  |  |  |  |  |  | and return ($1, $1); | 
| 363 | 0 | 0 |  |  |  |  | s/^(>>=)// | 
| 364 |  |  |  |  |  |  | and return ($1, $1); | 
| 365 | 0 | 0 |  |  |  |  | s/^(>>>=)// | 
| 366 |  |  |  |  |  |  | and return ($1, $1); | 
| 367 | 0 | 0 |  |  |  |  | s/^(div=)// | 
| 368 |  |  |  |  |  |  | and return ($1, $1); | 
| 369 | 0 | 0 |  |  |  |  | s/^(&&)// | 
| 370 |  |  |  |  |  |  | and return ($1, $1); | 
| 371 | 0 | 0 |  |  |  |  | s/^(\|\|)// | 
| 372 |  |  |  |  |  |  | and return ($1, $1); | 
| 373 | 0 | 0 |  |  |  |  | s/^(\+\+)// | 
| 374 |  |  |  |  |  |  | and return ($1, $1); | 
| 375 | 0 | 0 |  |  |  |  | s/^(\-\-)// | 
| 376 |  |  |  |  |  |  | and return ($1, $1); | 
| 377 | 0 | 0 |  |  |  |  | s/^(<<)// | 
| 378 |  |  |  |  |  |  | and return ($1, $1); | 
| 379 | 0 | 0 |  |  |  |  | s/^(>>>)// | 
| 380 |  |  |  |  |  |  | and return ($1, $1); | 
| 381 | 0 | 0 |  |  |  |  | s/^(>>)// | 
| 382 |  |  |  |  |  |  | and return ($1, $1); | 
| 383 | 0 | 0 |  |  |  |  | s/^(<=)// | 
| 384 |  |  |  |  |  |  | and return ($1, $1); | 
| 385 | 0 | 0 |  |  |  |  | s/^(>=)// | 
| 386 |  |  |  |  |  |  | and return ($1, $1); | 
| 387 | 0 | 0 |  |  |  |  | s/^(==)// | 
| 388 |  |  |  |  |  |  | and return ($1, $1); | 
| 389 | 0 | 0 |  |  |  |  | s/^(!=)// | 
| 390 |  |  |  |  |  |  | and return ($1, $1); | 
| 391 |  |  |  |  |  |  |  | 
| 392 | 0 | 0 |  |  |  |  | s/^([=><,!~\?:\.\+\-\*\/&\|\^%\(\)\{\};#])// | 
| 393 |  |  |  |  |  |  | and return ($1, $1);                    # punctuator | 
| 394 |  |  |  |  |  |  |  | 
| 395 | 0 | 0 |  |  |  |  | s/^([\S]+)// | 
| 396 |  |  |  |  |  |  | and $parser->Error("lexer error $1.\n"), | 
| 397 |  |  |  |  |  |  | last; | 
| 398 |  |  |  |  |  |  | } | 
| 399 |  |  |  |  |  |  | } | 
| 400 |  |  |  |  |  |  | } | 
| 401 |  |  |  |  |  |  |  | 
| 402 |  |  |  |  |  |  | sub InitLexico { | 
| 403 | 0 |  |  | 0 | 0 |  | my ($parser) = @_; | 
| 404 |  |  |  |  |  |  |  | 
| 405 | 0 |  |  |  |  |  | my %keywords = ( | 
| 406 |  |  |  |  |  |  | # Literal | 
| 407 |  |  |  |  |  |  | 'true'          =>  'TRUE_LITERAL', | 
| 408 |  |  |  |  |  |  | 'false'         =>  'FALSE_LITERAL', | 
| 409 |  |  |  |  |  |  | 'invalid'       =>  'INVALID_LITERAL', | 
| 410 |  |  |  |  |  |  | # Keyword | 
| 411 |  |  |  |  |  |  | 'access'        =>  'ACCESS', | 
| 412 |  |  |  |  |  |  | 'agent'         =>  'AGENT', | 
| 413 |  |  |  |  |  |  | 'break'         =>  'BREAK', | 
| 414 |  |  |  |  |  |  | 'continue'      =>  'CONTINUE', | 
| 415 |  |  |  |  |  |  | 'div'           =>  'DIV', | 
| 416 |  |  |  |  |  |  | 'domain'        =>  'DOMAIN', | 
| 417 |  |  |  |  |  |  | 'else'          =>  'ELSE', | 
| 418 |  |  |  |  |  |  | 'equiv'         =>  'EQUIV', | 
| 419 |  |  |  |  |  |  | 'extern'        =>  'EXTERN', | 
| 420 |  |  |  |  |  |  | 'for'           =>  'FOR', | 
| 421 |  |  |  |  |  |  | 'function'      =>  'FUNCTION', | 
| 422 |  |  |  |  |  |  | 'header'        =>  'HEADER', | 
| 423 |  |  |  |  |  |  | 'http'          =>  'HTTP', | 
| 424 |  |  |  |  |  |  | 'if'            =>  'IF', | 
| 425 |  |  |  |  |  |  | 'isvalid'       =>  'ISVALID', | 
| 426 |  |  |  |  |  |  | 'meta'          =>  'META', | 
| 427 |  |  |  |  |  |  | 'name'          =>  'NAME', | 
| 428 |  |  |  |  |  |  | 'path'          =>  'PATH', | 
| 429 |  |  |  |  |  |  | 'return'        =>  'RETURN', | 
| 430 |  |  |  |  |  |  | 'typeof'        =>  'TYPEOF', | 
| 431 |  |  |  |  |  |  | 'use'           =>  'USE', | 
| 432 |  |  |  |  |  |  | 'user'          =>  'USER', | 
| 433 |  |  |  |  |  |  | 'var'           =>  'VAR', | 
| 434 |  |  |  |  |  |  | 'while'         =>  'WHILE', | 
| 435 |  |  |  |  |  |  | 'url'           =>  'URL', | 
| 436 |  |  |  |  |  |  | ); | 
| 437 | 0 |  |  |  |  |  | my %invalid_keywords = ( | 
| 438 |  |  |  |  |  |  | # Keyword not used | 
| 439 |  |  |  |  |  |  | 'delete'        =>  'DELETE', | 
| 440 |  |  |  |  |  |  | 'in'            =>  'IN', | 
| 441 |  |  |  |  |  |  | 'lib'           =>  'LIB', | 
| 442 |  |  |  |  |  |  | 'new'           =>  'NEW', | 
| 443 |  |  |  |  |  |  | 'null'          =>  'NULL', | 
| 444 |  |  |  |  |  |  | 'this'          =>  'THIS', | 
| 445 |  |  |  |  |  |  | 'void'          =>  'VOID', | 
| 446 |  |  |  |  |  |  | 'with'          =>  'WITH', | 
| 447 |  |  |  |  |  |  | # Future reserved word | 
| 448 |  |  |  |  |  |  | 'case'          =>  'CASE', | 
| 449 |  |  |  |  |  |  | 'catch'         =>  'CATCH', | 
| 450 |  |  |  |  |  |  | 'class'         =>  'CLASS', | 
| 451 |  |  |  |  |  |  | 'const'         =>  'CONST', | 
| 452 |  |  |  |  |  |  | 'debugger'      =>  'DEBUGGER', | 
| 453 |  |  |  |  |  |  | 'default'       =>  'DEFAULT', | 
| 454 |  |  |  |  |  |  | 'do'            =>  'DO', | 
| 455 |  |  |  |  |  |  | 'enum'          =>  'ENUM', | 
| 456 |  |  |  |  |  |  | 'export'        =>  'EXPORT', | 
| 457 |  |  |  |  |  |  | 'extends'       =>  'EXTENDS', | 
| 458 |  |  |  |  |  |  | 'finally'       =>  'FINALLY', | 
| 459 |  |  |  |  |  |  | 'import'        =>  'IMPORT', | 
| 460 |  |  |  |  |  |  | 'private'       =>  'PRIVATE', | 
| 461 |  |  |  |  |  |  | 'public'        =>  'PUBLIC', | 
| 462 |  |  |  |  |  |  | 'sizeof'        =>  'SIZEOF', | 
| 463 |  |  |  |  |  |  | 'struct'        =>  'STRUCT', | 
| 464 |  |  |  |  |  |  | 'super'         =>  'SUPER', | 
| 465 |  |  |  |  |  |  | 'switch'        =>  'SWITCH', | 
| 466 |  |  |  |  |  |  | 'throw'         =>  'THROW', | 
| 467 |  |  |  |  |  |  | 'try'           =>  'TRY', | 
| 468 |  |  |  |  |  |  | ); | 
| 469 |  |  |  |  |  |  |  | 
| 470 | 0 |  |  |  |  |  | $parser->YYData->{keyword} = \%keywords; | 
| 471 | 0 |  |  |  |  |  | $parser->YYData->{invalid_keyword} = \%invalid_keywords; | 
| 472 | 0 |  |  |  |  |  | return; | 
| 473 |  |  |  |  |  |  | } | 
| 474 |  |  |  |  |  |  |  | 
| 475 |  |  |  |  |  |  | 1; | 
| 476 |  |  |  |  |  |  |  |