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text.love
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Merge lines.love

This commit is contained in:
Kartik K. Agaram 2023-10-15 14:42:28 -07:00
parent b84cbf6d21 ea4a8379fe
commit 80ba5851e7
1 changed files with 9 additions and 0 deletions
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9
search.lua
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@ -131,6 +131,7 @@ end
-- Particularly if we only care about literal matches, we don't need all of string.find
function rfind(s, pat, i, plain)
if s == nil then return end
if #pat == 0 then return #s end
local rs = s:reverse()
local rpat = pat:reverse()
if i == nil then i = #s end
@ -141,3 +142,11 @@ function rfind(s, pat, i, plain)
assert (endpos >= #pat)
return endpos-#pat+1
end
function test_rfind()
check_eq(rfind('abc', ''), 3, 'empty pattern')
check_eq(rfind('abc', 'c'), 3, 'final char')
check_eq(rfind('acbc', 'c', 3), 2, 'previous char')
check_nil(rfind('abc', 'd'), 'missing char')
check_nil(rfind('abc', 'c', 2), 'no more char')
end