Lex/YACC
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Yacc is a Look-Ahead LR parser generator that takes Backus–Naur Form text files and generates LALR parsers from it. Primarily used as tool for generating front end parsers for compilers or formal validation for file formats in export filters and so on, so forth.
OS/2 text & programmers editors with Yacc BNF file support
- NEdit - XFree86 - Autoindent, autocomplete and syntax highlighting - Open source - Discontinued.