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Viewing changes to Development/parsers/flex_lexer.txt

  • Committer: Suren A. Chilingaryan
  • Date: 2009-04-09 03:21:08 UTC
  • Revision ID: csa@dside.dyndns.org-20090409032108-w4edamdh4adrgdu3
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Development/parsers/flex_lexer.txt
 
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Structure of flex file
 
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----------------------
 
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%{
 
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 extra statements to include in the begining of produced C file
 
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%}
 
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"name  definition"      - list of variables which would be used later
 
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%%
 
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"pattern action"        - action is 'C' command, for example printf statments
 
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                        which outputs appropriate token
 
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                         + pattern '.' in the end means anything else
 
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%%
 
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<user code>             - function main calling yylex();