Edit 1.
A much Simpler solution would be that I can view the Ruby language itself in the ‘Used Defined Language’ tool.

You can type the closing “)” for sure. Don’t know about the “}”.

Hi Penny,
I’m afraid that without either an example of that file, or more information, noone will be able to help you.
What kind of file are you opening? What kind of data is it suppose to contain? What language is the file written in? Is it the problem with all files, or just this one? In what editor did you open it in past? Can other plaintext editors (like normal win notepad) open it?
Etc.

Hi,
there are none :)

If you want to perform this kind of replacement, you will need to learn regular expressions (a.k.a. regexp).

There are dozens of tutorial on the net, e.g. here:
http://www.regular-expressions.info/

I should warn you though, that regexp are like women: powerful, mysterious and unforgiving :)
And they usually don’t behave the way you expect.
But don’t be discouraged. It is a great tool, if used properly. In my work, where I deal a lot with a plaintext processing, I would be lost without them

Anyway, answer to your particular question about space between two numbers is
with regexp search mode:
Replace
(\d),(\d)
with
\1 \2

supply a screenshot

I use the Snippets plugin for my HTML/CSS pages. It has a lot of tags built-in and you can edit those and add your own tags or “quick text” phrases. It has some SQL code built-in also. I originally used it just for the built-in HTML tags but now I have all the tags I frequently use with class names and such already added in, as well as any code or phrases I use a lot. You can also use it for page templates with tabs/spacing already set up.

@Sabah-Siddiqui

too many open questions.

Are a b d f variable in length? Or is it really one char?
Is the pipe symbol part of the data?
Is it true that there is a space after the char v in | v | (line 3)
but not after char d in | d| (line 2 and 1)?

Cheers
Claudia

@Tim-Wright

I would have expected this to be a one liner

<association ext=".nut" userDefinedLangName="squirrel" id="squirrel_function"/>

and once defined in functionlist.xml did you restart npp?
The above seems to work.

Cheers
Claudia

@centaurialpha

you may want to check columnEditor.cpp

Cheers
Claudia