Lex (software)
Lex is a computer program that generates lexical analyzers ("scanners" or "lexers"). It is commonly used with the yacc parser generator and is the standard lexical analyzer generator on many Unix and Unix-like systems. An equivalent tool is specified as part of the POSIX standard.
| Original author(s) | Mike Lesk, Eric Schmidt |
|---|---|
| Initial release | 1975 |
| Repository | |
| Written in | C |
| Operating system | Unix, Unix-like, Plan 9 |
| Platform | Cross-platform |
| Type | Command |
| License | Plan 9: MIT License |
Lex reads an input stream specifying the lexical analyzer and writes source code which implements the lexical analyzer in the C programming language.
In addition to C, some old versions of Lex could generate a lexer in Ratfor.
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