Using flex

A Fast Lexical Analyzer Generator

26 May 1990--Version 2.3

• An Overview of flex, with Examples
  • Text-Substitution Scanner
  • A Scanner to Count Lines and Characters
  • Simplified Pascal-like Language Scanner
• Input and Output Files
  • Format of the Input File
    • Patterns in the Input
    • How the Input is Matched
    • Actions
  • The Generated Scanner
  • Start Conditions
  • Multiple Input Buffers
  • End-of-File Rules
  • Miscellaneous Macros
  • Interfacing with Parser Generators
  • Translation Table
• Command-line Options
• Performance Considerations
• Incompatibilities with lex and POSIX
• Diagnostic Messages
• Deficiencies and Bugs
• Contributors to flex

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