Y vocabularies

Y
yacc (Yet Another Compiler-Compiler)
A program for generating parsers (programs that can interpret their input in a 
rational manner). The output from yacc is a C language program. The yacc
program is usually used to generate parsers for interpreting the output of a lexgenerated front end. 
See also lex, parser
younger file
For the make utility, a dependency file that has changed more recently than its 
target.

Page Term Reference