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    Perl language syntax highlighting troubles (bug or limitation ?)

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    • EkopalypseE
      Ekopalypse @Gilles Maisonneuve
      last edited by

      @Gilles-Maisonneuve

      I’m living in DE but have to admit, that I haven’t heard of DWservice before, shame on me :-)

      Changes
      line 9 to BUILTIN_LEXER = 'perl'
      line 111 self.lexer_name = BUILTIN_LEXER.lower()
      line 219 to self.doc_is_of_interest = True if editor.getLexerLanguage().lower() == self.lexer_name else False

      As python is very picky about whitespaces make sure that you either use
      spaces or tabs for indentation only. Best python practice is to set
      Settings->Preferences->Language->TabSettings->Python
      Tab size = 4 and check replace by space checkbox
      (if this isn’t your default setting, of course)

      Gilles MaisonneuveG 1 Reply Last reply Reply Quote 2
      • Gilles MaisonneuveG
        Gilles Maisonneuve @Ekopalypse
        last edited by Gilles Maisonneuve

        @Ekopalypse

        Oops, I must have made some mistakes but can’t find where… Here is the console log:

        Traceback (most recent call last):
          File "C:\Users\gm\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\startup.py", line 1, in <module>
            import EnhancePerlLexer
          File "C:\Users\gm\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\EnhancePerlLexer.py", line 283, in <module>
            EnhanceBuiltinLexer().main()
          File "C:\Users\gm\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\EnhancePerlLexer.py", line 280, in main
            self.on_bufferactivated(None)
          File "C:\Users\gm\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\EnhancePerlLexer.py", line 237, in on_bufferactivated
            self.check_lexer()
          File "C:\Users\gm\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\EnhancePerlLexer.py", line 224, in check_lexer
            self.doc_is_of_interest = True if editor.getLexerLanguage().lower() == self.lexer_name else False
        AttributeError: 'EnhanceBuiltinLexer' object has no attribute 'lexer_name'
        Python 2.7.15 (v2.7.15:ca079a3ea3, Apr 30 2018, 16:30:26) [MSC v.1500 64 bit (AMD64)]
        Initialisation took 343ms
        Ready.
        
        Traceback (most recent call last):
          File "C:\Users\gm\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\EnhancePerlLexer.py", line 73, in <module>
            EnhanceBuiltinLexer().main()
          File "C:\Users\gm\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\EnhancePerlLexer.py", line 280, in main
            self.on_bufferactivated(None)
          File "C:\Users\gm\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\EnhancePerlLexer.py", line 237, in on_bufferactivated
            self.check_lexer()
          File "C:\Users\gm\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\EnhancePerlLexer.py", line 224, in check_lexer
            self.doc_is_of_interest = True if editor.getLexerLanguage().lower() == self.lexer_name else False
        AttributeError: 'EnhanceBuiltinLexer' object has no attribute 'lexer_name'
        

        Line numbers don’t match because I already commented out some of your lines but kept them in the file, and duplicated them with my own changes. But I did do the changes at the places you told me to do them.

        EkopalypseE 1 Reply Last reply Reply Quote 1
        • EkopalypseE
          Ekopalypse @Gilles Maisonneuve
          last edited by

          @Gilles-Maisonneuve

          check line 111 - it defines the lexer_name

          Gilles MaisonneuveG 1 Reply Last reply Reply Quote 2
          • Gilles MaisonneuveG
            Gilles Maisonneuve
            last edited by

            OOPS, yours :== self.lexer_name, mine :== self_lexer_name, I am really a dumb when dealing with OO programming, can’t realize that ‘self’ is the current object and of course separated by a dot.

            Colour has changed for q* keywords and there text (black on dark blue, can’t read but now just need to ajust the colors).
            No change for here docs, but don’t know if I properly set the colors, have to check.

            Send you a screen copy in a few minutes.

            1 Reply Last reply Reply Quote 2
            • Gilles MaisonneuveG
              Gilles Maisonneuve @Ekopalypse
              last edited by Gilles Maisonneuve

              @Ekopalypse

              All right, nearly done: with the following regexp in your python code:

              regexes[(1, (255,0,128))] = (r'\bq[rwqx]{0,1}\b([^\h]).*?\1|(\bq[rwqx]{0,1}\b\h+(\w).*?\3)', [0])
              regexes[(2, (255,0,128))] = (r'\bq[rwqx]{0,1}\b\h*(\(.+?\)|\[.+?\]|\{.+?\})', [0])
              regexes[(3, (0,0,0))] = (r'(?s)((<<)"*(\w+?)"*;.*?\3)', [2])
              regexes[(4, (0,0,0))] = (r'(?s)((<<)\h+"(\w+?)";.*?\3)', [2,3])
              

              I get the following colors:

              q* colors OK, here docs no

              Q* colors are good {well I might have an uggly taste in colors but at least they match ;-)) }

              Would you have any clue about why the here docs= are still not handled properly ? They should be black, I think.

              EkopalypseE 1 Reply Last reply Reply Quote 2
              • EkopalypseE
                Ekopalypse @Gilles Maisonneuve
                last edited by

                @Gilles-Maisonneuve

                the regexes assumes double quotes and semicolon directly attached to EOT.
                Like

                print << "EOT";
                
                --------------------- separation line ------------------
                
                EOT
                

                Is there a rule how this is specified?

                1 Reply Last reply Reply Quote 2
                • Gilles MaisonneuveG
                  Gilles Maisonneuve
                  last edited by Gilles Maisonneuve

                  I think I found why.
                  Your regexp says :
                  r'(?s)((<<)"*(\w+?)"*;.*?\3)'
                  would not it be better if :
                  r'(?s)(\h*(<<)\h*"*(\w+?)"*\h*;.*?\3)'

                  ???

                  To answer your question:

                  Perl allows

                  1. <<TEXT,
                  2. << TEXT
                  3. <<‘TEXT’ / << ‘TEXT’
                  4. <<“TEXT” / << “TEXT”

                  meanings differ in each case…

                  1 Reply Last reply Reply Quote 2
                  • EkopalypseE
                    Ekopalypse
                    last edited by

                    To be honest - I’m not a regex expert at all :-D
                    If you, as a perl developer, say so I would absolutely believe it is :-)

                    Gilles MaisonneuveG 1 Reply Last reply Reply Quote 1
                    • Gilles MaisonneuveG
                      Gilles Maisonneuve @Ekopalypse
                      last edited by

                      @Ekopalypse

                      In your Python regexp, what’s the meaning of:

                      1. “\3”
                      2. “, [2]” and “[2,3]” ?

                      If I can understand what I think I could translate a Perl regex code into python (for this case at least).

                      1 Reply Last reply Reply Quote 0
                      • EkopalypseE
                        Ekopalypse
                        last edited by

                        What about using this
                        (?s)((<<)\h+(["|'])(\w+?)\3\h*;.*?\4)

                        Gilles MaisonneuveG 1 Reply Last reply Reply Quote 0
                        • EkopalypseE
                          Ekopalypse
                          last edited by

                          1. is the boost:regex convention to denote match group 3
                            and
                          2. defines which match group actually should be painted

                          Like if you have:

                          r'(word1)(word2)(word3)', [2,3]
                          

                          would mean that only word2 and word3 would be painted
                          whereas if you would specify

                          r'(word1)(word2)(word3)', [0]
                          

                          everything would be colored.

                          Does this makes sense to you?

                          Gilles MaisonneuveG 1 Reply Last reply Reply Quote 0
                          • Gilles MaisonneuveG
                            Gilles Maisonneuve @Ekopalypse
                            last edited by

                            @Ekopalypse

                            I don’t understand your regexp syntax. Perhaps too ‘pythonized’ for me.

                            (?s) : what does it mean ? is it ‘s///’ ? or really a non capturing group of ‘s’ ???
                            \3 \4 : are they $3 $4, I don’t think as I can’t see a 4th accumulator

                            1 Reply Last reply Reply Quote 0
                            • EkopalypseE
                              Ekopalypse
                              last edited by Ekopalypse

                              (?s) is a modifier telling the engine that the dot matches line endings
                              and yes, the engine uses \1 and $1

                              Here the link to the documentation - maybe easier for you.

                              1 Reply Last reply Reply Quote 0
                              • EkopalypseE
                                Ekopalypse
                                last edited by

                                ooppps

                                (?s)((<<)\h+(["|'])(\w+?)\3\h*;.*?\3)

                                :-D

                                Gilles MaisonneuveG 1 Reply Last reply Reply Quote 0
                                • Gilles MaisonneuveG
                                  Gilles Maisonneuve @Ekopalypse
                                  last edited by

                                  This post is deleted!
                                  1 Reply Last reply Reply Quote 0
                                  • Gilles MaisonneuveG
                                    Gilles Maisonneuve @Ekopalypse
                                    last edited by

                                    @Ekopalypse

                                    Ok
                                    another one: in Python you must say ["|'] instead of Perl ["'] (‘either one of the set’) ? Is that what it means ?

                                    EkopalypseE 1 Reply Last reply Reply Quote 0
                                    • EkopalypseE
                                      Ekopalypse
                                      last edited by

                                      No, afaik non-capturing group is (?:pattern)
                                      This, (?s), just tells the engine that the dot . is matching
                                      EOLs like \r\n - if I’m right.

                                      1 Reply Last reply Reply Quote 1
                                      • EkopalypseE
                                        Ekopalypse
                                        last edited by Ekopalypse

                                        Just for clarification, the python script does NOT use the python regex engine instead
                                        it uses the one notepad++ offers, the boost::regex.
                                        Yes, you can use the enumeration without the pipe but makes it more visible for me with
                                        the pipe sign. Or is there a difference if used with pipe sign or without?

                                        1 Reply Last reply Reply Quote 1
                                        • EkopalypseE
                                          Ekopalypse
                                          last edited by Ekopalypse

                                          or maybe this one might be even better
                                          (?s)(<<)\h+(["'])(\w+?)\2\h*;.*?\3

                                          1 Reply Last reply Reply Quote 1
                                          • Gilles MaisonneuveG
                                            Gilles Maisonneuve
                                            last edited by

                                            Can’t reply what I wanted, a robot says I’m spamming…

                                            Gilles MaisonneuveG 1 Reply Last reply Reply Quote 0
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