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Fix accidental negative bounds

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See Araq/Nim #1979 for context
This commit is contained in:
Flaviu Tamas 2015-01-19 16:16:06 -05:00
commit eb2fd618fe
2 changed files with 2 additions and 1 deletions
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2
src/nre.nim
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@ -116,7 +116,7 @@ proc `[]`*(pattern: Captures, i: int): string =
# capture count, plus the entire string
pattern.matchCache = newSeq[string](pattern.pattern.captureCount + 1)
if pattern.matchCache[i + 1] == nil:
pattern.matchCache[i + 1] = pattern.str[bounds.a .. bounds.b-1]
pattern.matchCache[i + 1] = pattern.str.substr(bounds.a, bounds.b-1)
return pattern.matchCache[i + 1]
else:
return nil

1
test/find.nim
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@ -19,3 +19,4 @@ suite "find":
test "len 0 find":
check("".findAll(re"\ ") == newSeq[string]())
check("".findAll(re"") == @[""])
check("word word".findAll(nre.re"\b") == @["", "", "", ""])