Argyrios Kyrtzidis b3dd1e0889 Allow the preprocessor to cache the lexed tokens, so that we can do efficient lookahead and backtracking. ... 1) New public methods added: -EnableBacktrackAtThisPos -DisableBacktrack -Backtrack -isBacktrackEnabled 2) LookAhead() implementation is replaced with a more efficient one. 3) LookNext() is removed. llvm-svn: 54611		2008-08-10 13:15:22 +00:00
clang	Allow the preprocessor to cache the lexed tokens, so that we can do efficient lookahead and backtracking.	2008-08-10 13:15:22 +00:00
llvm	move some more stuff out of my email into readme.txt	2008-08-10 01:14:08 +00:00