Regular expression to duplicate each line, add separator, prefix

Question

I would like to have a regular expression that I can use in TextWrangler. I've read that substituting for \n+ will allow me to add the suffix but I do not know how to duplicate and add the separator.

Input:

A
B
C

Output

A_A_suffix
B_B_suffix
C_C_suffix

Thanks for reformatting, will keep that in mind. – Bobby Jun 15 '16 at 15:22 — Bobby, Jun 15 '16 at 15:22

score 2 · Accepted Answer · answered Jun 09 '16 at 15:30

2

I cannot confirm about TextWrangler right now since don't have my mac, but you can use this regex which will work on Notepad++ and Sublime:

(.+)

With this replacement string:

$1_$1_suffix

Working demo

answered Jun 09 '16 at 15:30

Federico Piazza

30,085
15
87
123

Fantastic answer, thanks very much! And thanks to your post, i've been using the https://regex101.com site a lot. – Bobby Jun 15 '16 at 15:21
@Bobby glad to help. Also you can play with debuggex.com to see your regex in a pretty diagram – Federico Piazza Jun 15 '16 at 16:07
In TextWrangler the replacement string should be \1_\1_suffix – Charalampos Anargyrou Jul 25 '18 at 09:08

Regular expression to duplicate each line, add separator, prefix

1 Answers1