flex is a tool for generating scanners. A scanner, sometimes called a tokenizer, is a program which recognizes lexical patterns in text. The flex program reads user-specified input files, or its standard input if no file names are given, for a description of a scanner to generate. The description is in the form of pairs of regular expressions and C code, called rules. Flex generates a C source file named, "lex.yy.c", which defines the function yylex(). The file "lex.yy.c" can be compiled and linked to produce an executable. When the executable is run, it analyzes its input for occurrences of text matching the regular expressions for each rule. Whenever it finds a match, it executes the corresponding C code.

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License

BSD License

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  • Great App ,Excellent
  • I am not able to see the video of these tutorials. If I could it is really a good job
  • Making install in test-table-opts Error expanding embedded variable *** Error code 1 " How did you compile it?
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Additional Project Details

Operating Systems

Linux, BSD

Intended Audience

Developers

Programming Language

C++, C

Related Categories

C++ Code Generators, C Code Generators

Registered

2003-12-17