Go to the first, previous, next, last section, table of contents.
This manual describes flex, a tool for generating programs
that perform pattern-matching on text. The manual
includes both tutorial and reference sections:
- Description
-
a brief overview of the tool
- Some Simple Examples
-
- Format Of The Input File
-
- Patterns
-
the extended regular expressions used by flex
- How The Input Is Matched
-
the rules for determining what has been matched
- Actions
-
how to specify what to do when a pattern is matched
- The Generated Scanner
-
details regarding the scanner that flex produces;
how to control the input source
- Start Conditions
-
introducing context into your scanners, and
managing "mini-scanners"
- Multiple Input Buffers
-
how to manipulate multiple input sources; how to
scan from strings instead of files
- End-of-file Rules
-
special rules for matching the end of the input
- Miscellaneous Macros
-
a summary of macros available to the actions
- Values Available To The User
-
a summary of values available to the actions
- Interfacing With Yacc
-
connecting flex scanners together with yacc parsers
- Options
-
flex command-line options, and the "%option"
directive
- Performance Considerations
-
how to make your scanner go as fast as possible
- Generating C++ Scanners
-
the (experimental) facility for generating C++
scanner classes
- Incompatibilities With Lex And POSIX
-
how flex differs from AT&T lex and the POSIX lex
standard
- Diagnostics
-
those error messages produced by flex (or scanners
it generates) whose meanings might not be apparent
- Files
-
files used by flex
- Deficiencies / Bugs
-
known problems with flex
- See Also
-
other documentation, related tools
- Author
-
includes contact information
Go to the first, previous, next, last section, table of contents.