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Regular expression

2008-07-30
2012-11-13
  • Why N++ use such strange RExpr?
    Why not use any standards RExpr?

    and current used RExpr has a bug:

    in text: one one two two
    search: one .* two

    it select all string ("one one two two") while must select only by the first "two" ("one one two")

    Control + R also searched "one * two" differently: it find only ("one two"). this has two errors: 1. Go throw first "one" 2. find one symbol " " while search string contain two

     
    • cchris
      cchris
      2009-07-07

      See IdeaTorrent on this. Switching to PCRE is possible and planned, but this is not exactly trivial, and there is no release date for this feature.

      CChris

       
    • o sorry
      2. is my mistake :)

       
      • no
        2. is also a bug ctrl+R

         
        • Ctrl+R is not working on my computer (Windows 7 pre-release). Please e-mail me at owner@nccomputing.ca on how to resolve this problem. Version 5.3.1 works for Ctrl+R but 5.4.4 does not bring anything up when you click Ctrl-R

           
    • Sune Marcher
      Sune Marcher
      2008-07-30

      Notepad++ uses scintilla's RegExp engine, which is limited compared to, say, PRRE. I guess this makes sense since you get that "for free" when you're already using the scintilla edit control, but considering how many people have asked questions wrt. the limited power, perhaps it'd be better to use PCRE by default?

      It's my understanding that "one .* two" should indeed match the full "one one two two", using greedy capture - if you want only the "one one two" part to be matched, you should do a non-greedy capture.

       
    • There's is a way to change the regular expression's engine inside notepad++