Fix crash bug in LexString() with input of "
Fix crash bug in LexString() with input of "


Former-commit-id: 743950586c6cd08be29b87349cb313a6dd6c3a0e
Former-commit-id: 3d51e38192fd2dba5dbadbb2ca7ad09e1777e005
cschladetsch/KAI,cschladetsch/KAI,cschladetsch/KAI