Βιβλιογραφία
- Free
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Flex - a scanner
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Available online: http://www.gnu.org/manual/flex-2.5.4/flex.html, November
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- Michael E. Lesk.
Lex — a lexical analyzer generator.
Computer Science Technical Report 39, Bell Laboratories, Murray Hill, NJ, USA,
  October 1975.
 
- John Levine, Tony Mason,
  and Doug Brown.
Lex and Yacc.
O'Reilly & Associates, second edition, 1992.