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    • guy038G
      guy038
      last edited by guy038

      Hello, Andrew Schultz and Claudia,

      This time, Claudia, my following regex S/R seems shorter than your Python script ;-))

      So, Andrew, just :

      • Select the Regular expression mode in the Replace dialog

      • Type, in the Find what: zone, (s)|(n)|(e)|(w)

      • Type, in the Replace with: zone, (?1n)(?2s)(?3w)(?4e)

      • Click on the Replace All button

      Et voilà !

      Best Regards,

      guy038

      Claudia FrankC Andrew SchultzA glennfromiowaG 3 Replies Last reply Reply Quote 4
      • Claudia FrankC
        Claudia Frank @guy038
        last edited by

        @guy038
        what should I say - brilliant :-)
        Maybe we should think about rejecting all programming languages and do regex only ;-)

        Cheers
        Claudia

        1 Reply Last reply Reply Quote 0
        • Jim DaileyJ
          Jim Dailey
          last edited by

          @Claudia-Frank Until you realize that regex is just another programming language. :-)

          Claudia FrankC 1 Reply Last reply Reply Quote 0
          • Claudia FrankC
            Claudia Frank @Jim Dailey
            last edited by

            @Jim-Dailey

            a vicious circle :-D

            Cheers
            Claudia

            1 Reply Last reply Reply Quote 0
            • guy038G
              guy038
              last edited by guy038

              Claudia and Jim,

              Claudia, oh no ! Definitively not ! It’s just that, when I see some changes of text, which involve current file ONLY, and which need ONLY one S/R, regular expressions seem to be, most of the time, the shorter way to get the job done !


              BTW, I will send you, soon, my own version of your excellent RegexTesterPro.py script. Just to know your feedback about my modifications and, ( again ! ) some suggestions :-))

              Cheers,

              guy038

              P. S. :

              BTW, for an quick oversight about the differences between Formal languages, Programming languages and Regular expressions, refer to that interesting article ( especially, the answers of babou and tsleyson !! )

              http://cs.stackexchange.com/questions/30639/what-is-the-relationship-between-programming-languages-regular-expressions-and


              Specifically, about regular expressions, read this Wikipedia article :

              https://en.wikipedia.org/wiki/Regular_expression#

              And, particularly, the sections :

              https://en.wikipedia.org/wiki/Regular_expression#Formal_language_theory

              https://en.wikipedia.org/wiki/Regular_expression#Patterns_for_non-regular_languages

              Scott SumnerS 1 Reply Last reply Reply Quote 2
              • Andrew SchultzA
                Andrew Schultz @guy038
                last edited by

                @guy038 Wow! Very well done and creative! Thanks also for the other links.

                @Claudia-Frank I’m learning python, and a script like that helps show me its power. This looks like it can be extended nicely to other cases where I need to flip 2 strings or rotate 3. So I really appreciate that.

                I wish I’d remembered to check earlier…I need to go figure how to send alerts to my email. I thought it would’ve happened automatically. It’s pretty awesome, though, to learn about programming on a word processing forum. NotePad++ really has been a boon to me.

                1 Reply Last reply Reply Quote 0
                • Scott SumnerS
                  Scott Sumner
                  last edited by

                  So, I, too, have a Perl background and have more than once, when doing Python, wished for something like Perl’s tr feature. So this thread inspired me to put together something a little more generic than @Claudia-Frank 's earlier script. The following can be used in either Python or Notepad++'s Pythonscript:

                  def translate(input_str, orig_chars, new_chars):
                      assert len(orig_chars) <= len(new_chars)
                      trans_dict = {}
                      for (j, v) in enumerate(orig_chars): trans_dict[v] = new_chars[j]
                      return ''.join([ trans_dict.get(x, x) for x in input_str ])
                  

                  An example calling, using this thread’s original problem text, would be:

                  x = 'nnswwennswwwwweee'
                  print x
                  y = translate(x, 'news', 'swen')
                  print y
                  

                  which will print:

                  nnswwennswwwwweee
                  ssneewssneeeeewww
                  
                  Claudia FrankC 1 Reply Last reply Reply Quote 2
                  • Claudia FrankC
                    Claudia Frank @Scott Sumner
                    last edited by

                    Scott,
                    a nice one - like it.
                    Copied and backed up.

                    Cheers
                    Claudia

                    Scott SumnerS 1 Reply Last reply Reply Quote 0
                    • Scott SumnerS
                      Scott Sumner @Claudia Frank
                      last edited by

                      @Claudia-Frank

                      HAHA…well, it’s pretty much an obvious rip-off of your earlier one, which hurt my brain when I first saw it. :-)

                      1 Reply Last reply Reply Quote 1
                      • Scott SumnerS
                        Scott Sumner @guy038
                        last edited by

                        @guy038 said:

                        my own version of your excellent RegexTesterPro.py script

                        Hello guy,

                        I was just wondering if we are going to see your mentioned script HERE, perhaps sometime soon? :)

                        One thing that concerns me is that, while I’m sure the script is super-useful (as @Claudia-Frank 's versions in the past have also been), it will do Python-flavored regex’s and not Notepad++ -flavored regexes. For example, I have tried the “news” substitution that this thread began with, and while it works in N++, I haven’t been able to get something like it to work in Python–maybe I’m doing something wrong…

                        Claudia FrankC 1 Reply Last reply Reply Quote 0
                        • Claudia FrankC
                          Claudia Frank @Scott Sumner
                          last edited by

                          @Scott-Sumner

                          editor.rereplace(r'(s)|(n)|(e)|(w)', r'(?1n)(?2s)(?3w)(?4e)')
                          

                          did I miss something?
                          Or did you use the python re module?
                          In this case, yes, it doesn’t have the conditional substituion functionality.

                          Just for completeness, RegexTester has been designed to test a regular expression,
                          current version, and I assume this is still true even with the changes guy made,
                          cannot do replaces.

                          Cheers
                          Claudia

                          Scott SumnerS 1 Reply Last reply Reply Quote 0
                          • Scott SumnerS
                            Scott Sumner @Claudia Frank
                            last edited by

                            @Claudia-Frank

                            I was speaking of the Python re module; I forgot about the .research and .rereplace functions as I just tend to use the re ones. It didn’t occur to me that the editor ones would call the same regex engine as an interactive find/replace, but it makes perfect sense that they would. Thanks (again) for pointing out the obvious.

                            I realize the regextester currently does only find, but was thinking that the next logical extension might be to do something with replace. Thinking more about it, maybe that isn’t really practical…

                            1 Reply Last reply Reply Quote 0
                            • glennfromiowaG
                              glennfromiowa @guy038
                              last edited by

                              @guy038 said:

                              • Type, in the Find what: zone, (s)|(n)|(e)|(w)

                              • Type, in the Replace with: zone, (?1n)(?2s)(?3w)(?4e)

                              I just stumbled across your post, and this is the first time I’ve ever seen this! Where is this documented? I mean, I think your example tells me everything I need to know, but I wish there were more examples like this in the Wiki page on Regular Expressions! It isn’t even mentioned that the (?...) construct can be used in the Replace with (Substitutions) part. I felt like it should be able to be done, and yet I hadn’t been able to figure out the syntax yet. So powerful, and yet way too much trial and error needed to discover what it can do!

                              Scott SumnerS 1 Reply Last reply Reply Quote 0
                              • Scott SumnerS
                                Scott Sumner @glennfromiowa
                                last edited by

                                @glennfromiowa

                                You can find that in the Boost Regex Replace documentation, in the “Conditionals” section. Here’s a possible link to that Boost documentation: http://www.boost.org/doc/libs/1_48_0/libs/regex/doc/html/boost_regex/format/boost_format_syntax.html

                                The example from @guy038 's usage is a special case of this explanation from those docs:

                                For example, the format string "(?1foo:bar)" will replace each match found with "foo" if the sub-expression $1 was matched, and with "bar" otherwise.

                                BTW, @glennfromiowa , Welcome Back to the Community after a long time away…where ya been? :-D

                                1 Reply Last reply Reply Quote 0
                                • glennfromiowaG
                                  glennfromiowa
                                  last edited by

                                  Thanks, @Scott Sumner, I’ve been workin’. But now my work seems to lie in using RegExes to do things I couldn’t do easily without them, so here I am, back again.

                                  1 Reply Last reply Reply Quote 0
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