Add Find Special Character at beginning and ADD to END of string with regex-CodePudding

Have a string that starts with a # symbol and would like to add the same # symbol.

The string could contain any type of lower/upper, numbers, comas, periods, etc. Each string is a single separate line.

Here is what I have tried with no success:

Find:       (?=#)([\S\s] )           # www.admitme.app
Find:       (?=#\B)([\S\s] )         # Carlo Baxter
Find:       (?=#\B)([A-Za-z0-9] )    # resumes in 15 minutes

Replace:    $1 #                     # resumes in 15 minutes #

Yes I'm a noob with regex... Thanks in advance Hank K

CodePudding user response：

The following pattern is working in your demo:

(?=#\B)(.*)

This works in multiline mode, because then the .* will not match across newlines. You were using [\s\S]*, which will match across newlines, even in multiline mode. Here is the updated demo.

CodePudding user response：

You can do the same replacement without lookarounds or capture groups using one of these patterns. The point is to match any character without newlines using .* (And not have a flag set to have the dot matches newlines)

#\B.*
# .*

In the replacement use the matched text followed by a space and #

$0 #

See a regex demo.