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RegEx, predefined classe \b (wordboundary) (Popularity: 4698 )

JohnSmith EccoMagic Apprentice I Love Ecco! Posts: 6	RegEx, predefined classe \b (wordboundary) 11/19/09 at 06:41:36 Just have noticed that in regex expression (EccoExt v4.0.0.5) , predefined classe \b don't work, a \\b is required to make it work. e.g. rule function match('checking RegEx','\bReg') returns empty string to make it work use '\\b' instead of '\b', e.g. match('checking RegEx','\\bReg') returns 'Reg'. Best Regards, JS
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Re: RegEx, predefined classe \b (wordboundary)
Reply #1 - 11/19/09 at 15:54:12

this is (at least in part) due to the regex engine itself.

1. can use \B in place of \b (which is as Regex technically backwards, \B should be NOT a boundary ... but then again...)

2. double slash "\\" is interpreted as single slash. (if you *want* double slash, eg., literal slash, must use four slashes, "\\\\"

(untested if issue 2 is local extension or regex engine issue)

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