Hello,

2010/4/11 Chris Watkins chriswaterguy@appropedia.org:

This is as more about the learning process than the actual task... but I can't see what's wrong with my regex, and I'd appreciate any pointers.

I want to find cases where a header is not followed by a line break, e.g.

"== External links ==;http://www.americanbamboo.org/GeneralInfo.html

I tried various regex strings, including   "([\r\n]==[^\n=]*==)([^=\r ])" (allowing for the fact that excess spaces on the end aren't important)  to be replaced by     "\1\n\2"

But I get many false matches. See http://www.pastie.org/913753 for details of the good and the false matches.

In #regex on freenode I was told to try: "s/((={2,}).*?\2)(?!\n)([^=]?)/\1\n\2/g" but it gives the error: "bash: !\n: event not found".

Regarding this particular issue, you should read http://mywiki.wooledge.org/BashPitfalls#echo_.22Hello_World.21.22

Using single quotes instead of double quotes should work. Or just put "set +o histexpand" in your .bashrc ...

I'm told that it works - http://pastie.org/913765 - but in my terminal I can't get past the bash error.

Thanks!

-- Chris Watkins

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