From 901c8fbcdb113173dd7e11adf35d193f6d4b3986 Mon Sep 17 00:00:00 2001 From: James McCoy Date: Fri, 12 May 2017 11:41:35 -0400 Subject: regexp_nfa: Fix invalid fallthrough in character class detection When the end character in a range matches a different standard range (e.g., [0-z]), the range would be incorrectly detected as the class of the end character (CLASS_az). Instead of using a fallthrough, immediately FAIL when the end character doesn't match the expected range. --- test/functional/legacy/036_regexp_character_classes_spec.lua | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'test/functional/legacy/036_regexp_character_classes_spec.lua') diff --git a/test/functional/legacy/036_regexp_character_classes_spec.lua b/test/functional/legacy/036_regexp_character_classes_spec.lua index 110f7dd852..38e8145d1c 100644 --- a/test/functional/legacy/036_regexp_character_classes_spec.lua +++ b/test/functional/legacy/036_regexp_character_classes_spec.lua @@ -275,4 +275,16 @@ describe('character classes in regexp', function() diff(sixlines(string.sub(punct1, 1)..digits..punct2..upper..punct3.. lower..punct4..ctrl2..iso_text)) end) + it('does not convert character class ranges to an incorrect class', function() + source([[ + 1 s/\%#=0[0-z]//g + 2 s/\%#=1[0-z]//g + 3 s/\%#=2[0-z]//g + 4 s/\%#=0[^0-z]//g + 5 s/\%#=1[^0-z]//g + 6 s/\%#=2[^0-z]//g + ]]) + diff(string.rep(ctrl1..punct1..punct4..ctrl2..iso_text..'\n', 3) + ..string.rep(digits..punct2..upper..punct3..lower..'\n', 3)) + end) end) -- cgit