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| 1 # Copyright 2013 the V8 project authors. All rights reserved. | 1 # Copyright 2013 the V8 project authors. All rights reserved. |
| 2 # Redistribution and use in source and binary forms, with or without | 2 # Redistribution and use in source and binary forms, with or without |
| 3 # modification, are permitted provided that the following conditions are | 3 # modification, are permitted provided that the following conditions are |
| 4 # met: | 4 # met: |
| 5 # | 5 # |
| 6 # * Redistributions of source code must retain the above copyright | 6 # * Redistributions of source code must retain the above copyright |
| 7 # notice, this list of conditions and the following disclaimer. | 7 # notice, this list of conditions and the following disclaimer. |
| 8 # * Redistributions in binary form must reproduce the above | 8 # * Redistributions in binary form must reproduce the above |
| 9 # copyright notice, this list of conditions and the following | 9 # copyright notice, this list of conditions and the following |
| 10 # disclaimer in the documentation and/or other materials provided | 10 # disclaimer in the documentation and/or other materials provided |
| (...skipping 16 matching lines...) Expand all Loading... |
| 27 | 27 |
| 28 whitespace_char = [ \t\v\f\r:ws:\240]; | 28 whitespace_char = [ \t\v\f\r:ws:\240]; |
| 29 whitespace = whitespace_char+; | 29 whitespace = whitespace_char+; |
| 30 identifier_start = [$_a-zA-Z:lit:]; | 30 identifier_start = [$_a-zA-Z:lit:]; |
| 31 identifier_char = [0-9:identifier_start:]; | 31 identifier_char = [0-9:identifier_start:]; |
| 32 line_terminator = [\n\r]; | 32 line_terminator = [\n\r]; |
| 33 digit = [0-9]; | 33 digit = [0-9]; |
| 34 hex_digit = [0-9a-fA-F]; | 34 hex_digit = [0-9a-fA-F]; |
| 35 maybe_exponent = /([eE][\-+]?[:digit:]+)?/; | 35 maybe_exponent = /([eE][\-+]?[:digit:]+)?/; |
| 36 number = | 36 number = |
| 37 /0x[:hex_digit:]+/ | ( | 37 /0[xX][:hex_digit:]+/ | ( |
| 38 /\.[:digit:]+/ maybe_exponent | | 38 /\.[:digit:]+/ maybe_exponent | |
| 39 /[:digit:]+(\.[:digit:]*)?/ maybe_exponent ); | 39 /[:digit:]+(\.[:digit:]*)?/ maybe_exponent ); |
| 40 | 40 |
| 41 # grammar is | 41 # grammar is |
| 42 # regex <action_on_state_entry|action_on_match|transition> | 42 # regex <action_on_state_entry|action_on_match|transition> |
| 43 # | 43 # |
| 44 # actions can be c code enclosed in {} or identifiers to be passed to codegen | 44 # actions can be c code enclosed in {} or identifiers to be passed to codegen |
| 45 # transition must be in continue or the name of a subgraph | 45 # transition must be in continue or the name of a subgraph |
| 46 | 46 |
| 47 <<default>> | 47 <<default>> |
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| 228 eof <|skip_and_terminate|> | 228 eof <|skip_and_terminate|> |
| 229 catch_all <||continue> | 229 catch_all <||continue> |
| 230 | 230 |
| 231 <<MultiLineComment>> | 231 <<MultiLineComment>> |
| 232 /\*+\// <|skip|> | 232 /\*+\// <|skip|> |
| 233 # TODO find a way to generate the below rule | 233 # TODO find a way to generate the below rule |
| 234 /\*+[^\/*]/ <||continue> | 234 /\*+[^\/*]/ <||continue> |
| 235 line_terminator <push_line_terminator||continue> | 235 line_terminator <push_line_terminator||continue> |
| 236 eof <|skip_and_terminate|> | 236 eof <|skip_and_terminate|> |
| 237 catch_all <||continue> | 237 catch_all <||continue> |
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Chromium Code Reviews
Issue 75053002:
Experimental parser: better hex digit detection (Closed)
Base URL: https://v8.googlecode.com/svn/branches/experimental/parser