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Side by Side Diff: tools/lexer_generator/generator.py

Issue 82983002: Experimental parser: KeyEncoding class added (Closed) Base URL: https://v8.googlecode.com/svn/branches/experimental/parser
Patch Set: Created 7 years ago
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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
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105 parser.add_argument('--debug-code', action='store_true') 105 parser.add_argument('--debug-code', action='store_true')
106 args = parser.parse_args() 106 args = parser.parse_args()
107 107
108 minimize_default = not args.no_minimize_default 108 minimize_default = not args.no_minimize_default
109 verbose = args.verbose 109 verbose = args.verbose
110 110
111 re_file = args.re 111 re_file = args.re
112 if verbose: 112 if verbose:
113 print "parsing %s" % re_file 113 print "parsing %s" % re_file
114 with open(re_file, 'r') as f: 114 with open(re_file, 'r') as f:
115 rule_processor = RuleProcessor.parse(f.read()) 115 rule_processor = RuleProcessor.parse(f.read(), args.encoding)
116 116
117 if minimize_default: 117 if minimize_default:
118 if args.no_verify_default: 118 if args.no_verify_default:
119 DfaMinimizer.set_verify(False) 119 DfaMinimizer.set_verify(False)
120 dfa = rule_processor.default_automata().dfa() 120 dfa = rule_processor.default_automata().dfa()
121 mdfa = rule_processor.default_automata().minimal_dfa() 121 mdfa = rule_processor.default_automata().minimal_dfa()
122 if verbose: 122 if verbose:
123 print "nodes reduced from %s to %s" % ( 123 print "nodes reduced from %s to %s" % (
124 dfa.node_count(), mdfa.node_count()) 124 dfa.node_count(), mdfa.node_count())
125 DfaMinimizer.set_verify(True) 125 DfaMinimizer.set_verify(True)
126 126
127 html_file = args.html 127 html_file = args.html
128 if html_file: 128 if html_file:
129 html = generate_html(rule_processor, minimize_default) 129 html = generate_html(rule_processor, minimize_default)
130 with open(args.html, 'w') as f: 130 with open(args.html, 'w') as f:
131 f.write(html) 131 f.write(html)
132 if verbose: 132 if verbose:
133 print "wrote html to %s" % html_file 133 print "wrote html to %s" % html_file
134 134
135 code_file = args.code 135 code_file = args.code
136 if code_file: 136 if code_file:
137 code_generator = CodeGenerator(rule_processor, 137 code_generator = CodeGenerator(rule_processor,
138 encoding = args.encoding,
139 minimize_default = minimize_default, 138 minimize_default = minimize_default,
140 log = verbose, 139 log = verbose,
141 inline = not args.no_inline, 140 inline = not args.no_inline,
142 debug_print = args.debug_code) 141 debug_print = args.debug_code)
143 code = code_generator.process() 142 code = code_generator.process()
144 with open(code_file, 'w') as f: 143 with open(code_file, 'w') as f:
145 f.write(code) 144 f.write(code)
146 if verbose: 145 if verbose:
147 print "wrote code to %s" % code_file 146 print "wrote code to %s" % code_file
148 147
149 input_file = args.input 148 input_file = args.input
150 if input_file: 149 if input_file:
151 with open(input_file, 'r') as f: 150 with open(input_file, 'r') as f:
152 lex(rule_processor, f.read()) 151 lex(rule_processor, f.read())
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