tools/lexer_generator/generator.py - Issue 66533002: Experimental parser: better generation

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Unified Diff: tools/lexer_generator/generator.py

Issue 66533002: Experimental parser: better generation (Closed) Base URL: https://v8.googlecode.com/svn/branches/experimental/parser

Patch Set: Created 7 years, 1 month ago

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Index: tools/lexer_generator/generator.py

diff --git a/tools/lexer_generator/generator.py b/tools/lexer_generator/generator.py

index 213ee6bab28c67a36564724c9695bea30ba4c5ee..3305de229e056b6c1cddfb4baf74df5a8d67dd36 100644

--- a/tools/lexer_generator/generator.py

+++ b/tools/lexer_generator/generator.py

@@ -90,10 +90,12 @@ def process_rules(parser_state):

if transition == 'continue':

if not v['default'][1][2] == 'continue':

graph = NfaBuilder.add_continue(graph)

+ else:

+ pass # TODO null key

elif (transition == 'break' or

transition == 'terminate' or

transition == 'terminate_illegal'):

- NfaBuilder.add_action(graph, (-1, transition, None))

+ graph = NfaBuilder.add_action(graph, (10000, transition, None))

else:

assert k == 'default'

graph = NfaBuilder.join_subgraph(graph, transition, rule_map[transition])

@@ -104,7 +106,7 @@ def process_rules(parser_state):

assert transition == 'continue' or transition == 'break'

if transition == 'continue':

assert k != 'default'

- # graph = NfaBuilder.apply_modifier('*', graph)

+ graph = NfaBuilder.add_incoming_action(graph, (10000, k, None))

if code:

graph = NfaBuilder.add_incoming_action(graph, (precedence, code, None))

rule_map[k] = graph

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