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Update TODO_ParserGen.md

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Zihan Chen
2018-09-19 06:07:05 -07:00
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TODO_ParserGen.md
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@@ -54,3 +54,8 @@ class CLASS_NAME [: BASE_CLASS]
- Being able to change token subset during parsing.
- Being able to specify a error message when a certain action fails.
- Generate SAX-like parser, with a default handler to create AST.
## High level steps
- Name each progresses in all branches in all rules, including rule names as start progresses, as states.
- Build DFA per rule, merging all branches with priority, assuming **rule-input**s are different from **token-input**s.
- Add push-state, pop-state, remove **rule-input** transitions.