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Merge pull request #3563 from c-blake/devel

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Fix loop index bug in scan for a[s] in b[s..s+len2-1].
This commit is contained in:
Andreas Rumpf
2015-11-20 10:29:50 +01:00
parent ba6d0eb4db a1df79d5f2
commit 3c5a0b1b1a
2 changed files with 2 additions and 1 deletions
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2
lib/pure/strutils.nim
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@@ -1281,7 +1281,7 @@ proc editDistance*(a, b: string): int {.noSideEffect,
# another special case:
if len1 == 1:
for j in s..len2-1:
for j in s..s+len2-1:
if a[s] == b[j]: return len2 - 1
return len2

1
tests/stdlib/tstrutil.nim
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@@ -78,6 +78,7 @@ assert(editDistance("prefix__hallo_suffix", "prefix__ha_suffix") == 3)
assert(editDistance("prefix__hallo_suffix", "prefix") == 14)
assert(editDistance("prefix__hallo_suffix", "suffix") == 14)
assert(editDistance("prefix__hallo_suffix", "prefix__hao_suffix") == 2)
assert(editDistance("main", "malign") == 2)
assert "/1/2/3".rfind('/') == 4
assert "/1/2/3".rfind('/', 1) == 0