apt - Debians commandline package manager

	Commit message (Collapse)	Author	Age	Files	Lines
*	Add initial support for parsing patterns into parse trees	Julian Andres Klode	2019-08-15	1	-0/+95
	Introduce a parser for patterns that generates a parse tree. The language understood by the parser is: pattern = '?'TERM \| '?'TERM '(' pattern (',' pattern)* ','? ')' \| WORD \| QUOTED-WORD TERM = [0-9a-zA-Z-] WORD = [0-9a-ZA-Z-.*^$\[\]_\\] QUOTED_WORD = "..." # you know what I mean This language is context free, which is a massive simplification from aptitude's language, where ?foo(bar) could have two different meanings depending on whether ?foo takes an argument or not.