Flex - a scanner generator

This manual documents flex. It covers release 2.5.

• Name Name
• Synopsis Synopsis
• Overview Overview
• Description Description
• Examples Some simple examples
• Format Format of the input file
• Patterns Patterns
• Matching How the input is matched
• Actions Actions
• Generated scanner The generated scanner
• Start conditions Start conditions
• Multiple buffers Multiple input buffers
• End-of-file rules End-of-file rules
• Miscellaneous Miscellaneous macros
• User variables Values available to the user
• YACC interface Interfacing with yacc
• Options Options
• Performance Performance considerations
• C++ Generating C++ scanners
• Incompatibilities Incompatibilities with lex and POSIX
• Diagnostics Diagnostics
• Files Files
• Deficiencies Deficiencies / Bugs
• See also See also
• Author Author