true/2IMP20-GLT/RegexTest - GLT Assignment 1

Age	Commit message (Collapse)	Author	Files	Lines
2016-05-08	grammar-l11: remove left-recursion	Peter Wu	1	-8/+10
	In the original change, the EXP in PROD-EXP should have been PROD-EXP, similarly EXP in SINGLE-EXP should have been SINGLE-EXP. Otherwise the operator precedence is not applied correctly (consider 1+23, it should be interpreted as 1+(23), not (1+2)*3). Anyway, this change removes left-recursion as described in 2.12.1.
2016-05-07	Attempt to convert grammar to LL(1)	Peter Wu	1	-11/+8
	Needs more verification, but the idea is that the expressions with lowest precedence (+) should be the first one in the parse tree (implying that non-terminals with highest precedence should be just above a terminal). Left-associativity is achieved by the trick in section 2.3.1 of Intro2CD which results in the left operand being recursed instead of the right one.
2016-05-07	Initialize LL(1) grammar from current grammar	Peter Wu	1	-0/+41