Using groups in OpenRefine regex

Question

I'm wondering if it is possible to use "groups" in ReGeX used in Open Refine GREL syntax. I mean, I'd like to replace all the dots followed and preceded by a character WITH the same character and dot but followed by a space and then the character.

Something like:

s.replace(/(.{1})\..({1})/,/(1).\s(2)/)

score 1 · Answer 1 · answered Feb 07 '13 at 16:29

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It should, but your last argument needs to be a string, not a regular expression. Internally Refine uses Java's Matcher#replaceAll method which accepts a string argument.

answered Feb 07 '13 at 16:29

Tom Morris

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score 1 · Answer 2 · answered Mar 18 '13 at 20:21

1

I think I found out how to deal with this. You need to put $X in your string value to address a Xth capture group.

It should be like this:

s.replace(/.?(#capcure group 1).?(#capcure group 2).*?/), " some text $1 some text $2 some text")

answered Mar 18 '13 at 20:21

Stan

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Using groups in OpenRefine regex

2 Answers2