How to find replace using regex groups in vim

Question

I'm replacing all the inline gist snippets w/ a div to load them in a non blocking way. To modify all the legacy articles that have the following

<script src='https://gist.github.com/1234.js?file=gistfile1.sh'></script>

I need to replace it with the following instead

<div data-gist=1234><a href='http://gist.github.com/1234'>gistfile1.m</a></div>

So far what I'm trying (vim newb here) -doesn't seem to work

:%s/<script src='https:\/\/gist.github.com\/(d+).js?file=gistfile1.sh'><\/script>/<div data-gist={1}><a href='http://gist.github.com/{1}'>gistfile1.m</a></div>//g

Tim · Accepted Answer · 2012-06-17 17:45:51Z

64

I got it to work with this:

:%s!<script src='https://gist.github.com/\(\d\+\).js?file=gistfile1.sh'></script>!<div data-gist=\1><a href='http://gist.github.com/\1'>gistfile1.m</a></div>!g

Couple things to note:

I used ! instead of / as seperator to avoid having to escape path slashes
You need to escape (, d, +, and ) in your attempt.
You had extra / at the very end.
To insert the match group, use \1 instead of {1}

answered Jun 17, 2012 at 17:45

Tim

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6 Comments

Toran Billups Over a year ago

nice! the only thing to note is you need to start that with :%s

Toran Billups Over a year ago

one quick edit -how can I ignore the file= (name of file varies) and I don't need this during the replace so it could be lost (sorry to scope creep) **turns out I had various file names for each gist and they don't actually mean much for this implementation

Tim Over a year ago

If you don't care for the file name, you can just do file=[^']\+'. That will match everything after file= until the next '. If you want to use the name in the second part, then wrap another capture group around it ().

Toran Billups Over a year ago

You are the man! thanks for the speedy and documented answer!

mtk Over a year ago

someone give bounty... :)

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