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Add a few regular expression tests

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Robert Krimen
2012-10-20 15:00:25 -07:00
parent 2390419e97
commit 33d9cbf707
3 changed files with 9 additions and 2 deletions
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otto.go
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@@ -95,10 +95,12 @@ Regular Expression Syntax
Go translates JavaScript-style regular expressions into something that is regexp package compatible.
Unfortunately, JavaScript has positive lookahead, negative lookahead, and backreferencing,
all of which are not supported by Go's re2-like engine: https://code.google.com/p/re2/wiki/Syntax
all of which are not supported by Go's RE2-like engine: https://code.google.com/p/re2/wiki/Syntax
A brief discussion of these limitations: "Regexp (?!re)" https://groups.google.com/forum/?fromgroups=#!topic/golang-nuts/7qgSDWPIh_E
More information about RE2: https://code.google.com/p/re2/
UTF-8 UTF-16
Internally, otto stores strings as Go does, which is UTF-8. JavaScript calls for strings to be handled as UTF-16.