RegExReplace not working like in Notepad++ Topic is solved

[daniel]

Hello, I am trying to get RegExReplace to work.

Here is my script:

Code: Select all

StringLeft := "leftleftleftleftleftleftleftleftleftleft"


Output .= RegExReplace(StringLeft, "(left(?:(?!left).)*)left((?:(?!left).)*)", "\1right\2")

MsgBox % Output

Clipboard := Output

If I use this in Notepad++, namely (left(?:(?!left).)*)left((?:(?!left).)*) for search and \1right\2 for replacement, I get leftleftleftleftleftleftleftleftleftleft. But it doesn't work for me in AHK.

Instead, I get \1right\2\1right\2\1right\2\1right\2\1right\2. I've put up this RegEx on RegEx 101 at https regex101.com /r/z0bH8g/1/. Broken Link for safety

[TheDewd]

Try using dollar symbol. See below...

Code: Select all

RegExReplace(StringLeft, "(left(?:(?!left).)*)left((?:(?!left).)*)", "$1right$2")

https://www.autohotkey.com/docs/commands/RegExReplace.htm#BackRef

[daniel]

Big thanks, dewd.