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    How to see hex value of character next to cursor?

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    • PeterJonesP
      PeterJones
      last edited by

      @guy038 said:

      In which case the END-OF-FILE string is displayed in the status bar ?

      In @Scott-Sumner’s original, END-OF-FILE would show if you were at the last character of the file, or if the file were empty. However, my changes to try to trap the unicode characters caused the EOF-result to give errors.

      To fix that bug, change

      if c < 1 or c > 255:
      

      to

      if c < 0 or c > 255:
      
      1 Reply Last reply Reply Quote 3
      • PeterJonesP
        PeterJones
        last edited by

        @Ekopalypse said:

        there is no end-of-file (EOF) string/char.

        @guy038 was talking about the else 'END-OF-FILE' that should go to the status bar – ie, output of the program, not input from the file.

        The editor.getCharAt() apparently returns 0 if the getCurrentPos() is at the end of the file. But because I introduced the bug of c<1 instead of c<0 after that line, the 0 condition in the info = ... was never hit, so my code didn’t recognized the end of the file. (It was actually printing the untrapped error to the PythonScript console, but I hadn’t seen it, because I never tried testing the end-of-file condition while making my unicode-capable version of the script.)

        EkopalypseE 1 Reply Last reply Reply Quote 3
        • EkopalypseE
          Ekopalypse @PeterJones
          last edited by

          @PeterJones

          ahh, I was looking to your code searching if there is this statement but missed that I have to scroll horizontally to see it, then I thought @guy038 was really talking about EOF status - I should have known better :-) - SORRY @guy038 and thank you Peter for clarifying.

          1 Reply Last reply Reply Quote 3
          • guy038G
            guy038
            last edited by guy038

            Hello, @PeterJones, @ekopalypse, and All,

            So, finally, using your modification :

                if c < 0 or c > 255:
            

            and your line, slightly modified :

                    info = "  {1}    0x{0:04X}  -  {0} ".format(c, s.encode('utf-8') if c not in [13, 10, 0] else 'LINE-END' if c != 0 else 'FILE-END')
            

            Everything is OK ! And I’ve never met the error exception :-))

                except ValueError:
                    info = "HEX:?? DEC:?"
            

            For instance :

            • Open a new file

            • Running the script shows |  FILE-END    0x0000  -  0', in the status bar

            • Add a € Euro character

            • With cursor right before the currency symbol, I get |  €    0x20AC  -  8364'

            • With cursor right after the currency symbol, I get, again, |  FILE-END    0x0000  -  0'

            • Now, hit the Enter key

            • Move the caret right after the € => This time, it answers |  LINE-END    0x000D  -  13'

            • Hit the Down arrow key. Again, we get |  FILE-END    0x0000  -  0'

            An other example :

            • In a new file, I added two characters, which give the same resulting glyph é !
            é   //  LATIN SMALL LETTER E WITH ACUTE
            é  //  LATIN SMALL LETTER E + DIACRITICAL COMBINING ACUTE ACCENT
            
            • With cursor right before the first single é character, it displays |  é    0x00E9  -  233'

            • With cursor right before the é group of two characters, it displays |  e    0x0065  -  101'

            • Moving the cursor rightwards 1 position, “inside” the é group of two characters, it displays |  ́    0x0301  -  769', as expected !

            Refer to the complete list of the Combining Diacritical marks, below, for information :

            http://www.unicode.org/charts/PDF/U0300.pdf

            BR

            guy038

            1 Reply Last reply Reply Quote 4
            • PeterJonesP
              PeterJones
              last edited by

              @Alan-Kilborn said:

              Addicted. Definitely addicted. :)

              I am admittedly addicted. But did you see that it helped me use Notepad++ to find a hidden character in someone else’s code? That right there justifies the time I put into it, in my opinion.

              1 Reply Last reply Reply Quote 2
              • Alan KilbornA
                Alan Kilborn
                last edited by

                I recently found it handy to modify Peter’s script above (the version that runs “on demand”).
                Often when dealing with a “weird” character, I want to get rid of it and replace it with something else, sometimes a different character, and sometimes a string.
                The following modified version of the script shows the character codes (as before) but then asks you if you want to replace all occurrences of the character, and if you do, prompts you for the replacement.

                I called it CharacterCodeShowWithOptionalReplace.py :

                # -*- coding: utf-8 -*-
                
                from Npp import editor, notepad
                
                class CCSWOR(object):
                
                    def get_wide_ordinal(self, char):
                        # see https://stackoverflow.com/a/7291240/5508606
                        if len(char) != 2: return ord(char)
                        return 0x10000 + (ord(char[0]) - 0xD800) * 0x400 + (ord(char[1]) - 0xDC00)
                
                    def __init__(self):
                
                        c = editor.getCharAt(editor.getCurrentPos())
                        if c < 1 or c > 255:
                            p = editor.getCurrentPos()
                            q = editor.positionAfter(p)
                            s = editor.getTextRange(p,q).decode('utf-8')
                            c = self.get_wide_ordinal(s)
                        else:
                            s = unichr(c)
                
                        try:
                            info = "'{1}' = HEX:0x{0:04X} = DEC:{0} ".format(c, s.encode('utf-8') if c not in [13, 10, 0] else 'LINE-ENDING' if c != 0 else 'END-OF-FILE')
                        except ValueError:
                            info = "HEX:?? DEC:?"
                        notepad.messageBox(info, 'Character at caret was...')
                
                        matches = []
                        editor.search(s, lambda m: matches.append(m.span(0)))
                        user_input = notepad.prompt('Replace the character with something else (all {} occurrences)?\r\n'
                            '(Leave box empty to DELETE the character)'.format(len(matches)), 'Replace it?', '')
                        if user_input == None: return  # Cancel
                        editor.replace(s, user_input)
                
                if __name__ == '__main__': CCSWOR()
                

                Maybe it will be useful to someone else.
                Perfect usage: Replace “curly double-quotes” with straight ones. :-)

                PeterJonesP 1 Reply Last reply Reply Quote 5
                • PeterJonesP
                  PeterJones @Alan Kilborn
                  last edited by

                  @Alan-Kilborn said in How to see hex value of character next to cursor?:

                  Perfect usage: Replace “curly double-quotes” with straight ones. :-)

                  I wouldn’t call that “perfect”, since [“”] => " does it perfectly well without scripting. :-) Assuming you noticed they were curly in the first place.

                  Despite that, I do think it’s a nice extension to my script. :-)

                  Alan KilbornA 1 Reply Last reply Reply Quote 4
                  • Alan KilbornA
                    Alan Kilborn @PeterJones
                    last edited by

                    @PeterJones

                    I guess the “curly” thing was a bit contrived… :-)

                    I’ll tell you my real use case of recent origin:
                    Getting rid of some invisible LTR marks in a bunch of Skype conversation logs–ugh.

                    1 Reply Last reply Reply Quote 4
                    • Alan KilbornA
                      Alan Kilborn
                      last edited by

                      I posted an updated script for this topic, HERE.

                      Jeff HeathJ 1 Reply Last reply Reply Quote 2
                      • Jeff HeathJ
                        Jeff Heath @Alan Kilborn
                        last edited by

                        Can someone clarify how to actually run this script? I’ve followed the installing PythonScript [Guide](link https://notepad-plus-plus.org/community/topic/17256/guide-how-to-install-the-pythonscript-plugin-on-notepad-7-6-3-7-6-4-and-above), but as I search around there are also references to installing the Python Script plug-in, but that’s not available in my version of npp (maybe because it is 64 bit?).

                        Anyway, if I followed that PythonScript Guide, and have the plugins\PythonScript folder set up, how do I then run the script? I’ve also installed the NppExec plug-in, but don’t immediately see how that could be used.

                        I seem to be missing something. Can anyone give me a hint?

                        EkopalypseE PeterJonesP 2 Replies Last reply Reply Quote 0
                        • EkopalypseE
                          Ekopalypse @Jeff Heath
                          last edited by Ekopalypse

                          @Jeff-Heath
                          Once you have installed the PythonScript plugin, you should
                          see an additional entry in the plugin menu.
                          In that menu, there is a menu item called Show Console.
                          Click on it, and if the console opens without reporting a problem, the installation of PS was successful.

                          b247a11f-3f77-4997-b4dc-2fe06296f91f-image.png

                          To create a new script, use the menu again and select New Script,
                          But make sure the directory it points to is your ...plugins\Config\PythonScript\scripts\ directory.
                          Give it a meaningful name and copy the code into it.
                          Save it.
                          Now it should appear in the list of the Scripts menu item.
                          If you want it to be accessible in the PS main menu,
                          you have to use the PS menu option Configuration…
                          and add it to the main menu section. That’s it.
                          Now you can run it by clicking on it or assigning a shortcut, etc.

                          1 Reply Last reply Reply Quote 0
                          • Jeff HeathJ
                            Jeff Heath
                            last edited by

                            I finally noticed in the Plugins Admin that the Python Script plugin (version 1.3) that I installed manually (with the link above) was listed under the “Incompatible” tab. But I was able to install it on the “Updates” tab to version 2. Now I have an element “Python Script” on the Plugins menu which allows me to create a new script, etc. So I think I can now try to progress and try a few more things.

                            But why was “Python Script” not available in the Plugins Admin in the first place? All it has is “Python Indent”. I certainly don’t want to have to manually install 1.3 then do the update the next time.

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

                              @Jeff-Heath

                              That sounds strange, because normally you have it available.
                              I’ve never had a problem installing it, and I do it this way with every new npp version. I think I’ve been doing this since 7.9.5, which is how my automated tests run.
                              The only reason I can think of why it doesn’t show up in the Available tab is if npp thinks it has already found something.

                              Jeff HeathJ 1 Reply Last reply Reply Quote 0
                              • Jeff HeathJ
                                Jeff Heath @Ekopalypse
                                last edited by

                                @Ekopalypse Thanks for your feedback. I’ve got the script working now, and I’ll worry later about getting Python Script running on a new install.

                                Alan KilbornA 1 Reply Last reply Reply Quote 1
                                • Alan KilbornA
                                  Alan Kilborn @Jeff Heath
                                  last edited by Alan Kilborn

                                  @Jeff-Heath

                                  A really good up-to-date thread for things PythonScript is HERE. The bulk of your problem might have been trying to follow old, outdated PS information. Not sure how to solve the problem of outdated info in old threads here…

                                  1 Reply Last reply Reply Quote 0
                                  • Jeff HeathJ
                                    Jeff Heath
                                    last edited by Jeff Heath

                                    Thanks all for your input. I’ve made a few edits to produce the format I wanted for the output, and changes which I think make the code more readable (including adding a few comments). In case this is helpful for anyone else, here it is:

                                    # encoding=utf-8
                                    
                                    def callback_sci_UPDATEUI(args):
                                        # get character (as an integer) at the current position
                                        c = editor.getCharAt(editor.getCurrentPos())
                                        if c == 0:
                                            info = 'END-OF-FILE'
                                        elif c in [10,13]:
                                            info = "U+{0:04X} LINE-ENDING".format(c)
                                        else:
                                            # not one of the special cases
                                            if 1 <= c <= 255:
                                                # simple ANSI character
                                                s = unichr(c)
                                            else:
                                                # more complex case, so get the text range
                                                pos = editor.getCurrentPos()
                                                pos2 = editor.positionAfter(pos)
                                                s = editor.getTextRange(pos,pos2).decode('utf-8')
                                                # handle wide ordinals https://stackoverflow.com/a/7291240/5508606
                                                if len(s) != 2:
                                                    c = ord(s)
                                                else:
                                                    c = 0x10000 + (ord(s[0]) - 0xD800) * 0x400 + (ord(s[1]) - 0xDC00)
                                            
                                            # produce desired format for the status bar
                                            try:
                                                info = "U+{0:04X} '{1}'".format(c, s.encode('utf-8'))
                                            except:
                                                info = "U+????"
                                        
                                        notepad.setStatusBar(STATUSBARSECTION.DOCTYPE, info)
                                    
                                    #callback_sci_UPDATEUI(None)     # per https://notepad-plus-plus.org/community/topic/17799/, want on-demand
                                    editor.callback(callback_sci_UPDATEUI, [SCINTILLANOTIFICATION.UPDATEUI]) # per https://notepad-plus-plus.org/community/topic/14767/, want live
                                    

                                    I haven’t tested with any characters outside the BMP, but I think I transformed the code properly. Someone who works with those characters can feel free to test it…

                                    Alan KilbornA 1 Reply Last reply Reply Quote 0
                                    • Alan KilbornA
                                      Alan Kilborn @Jeff Heath
                                      last edited by

                                      @Jeff-Heath

                                      There is also a plugin (at least one) that can provide the functionality you seek. It’s called GotoLineCol in PluginsAdmin and it shows you this:

                                      1f4be7c7-9054-4ff5-b7c9-3bbe4b82cc95-image.png

                                      when your caret is next to a 💙 character.

                                      1 Reply Last reply Reply Quote 0
                                      • PeterJonesP
                                        PeterJones @Jeff Heath
                                        last edited by PeterJones

                                        @Jeff-Heath said in How to see hex value of character next to cursor?:

                                        I’ve followed the installing PythonScript Guide,

                                        FYI: that guide from 2019 was focused on the brief time when Notepad++ had just come out of a confusing update, and not all plugins (including Python Script) were yet compatible with the new Plugins Admin method of installing plugins. PythonScript v1.5, released in Oct 2019, was the first PS version compatible with Notepad++'s Plugins Admin interface… but that means that PythonScript has been available through the default interface Since Oct 2019. You no longer need to follow that ancient guide.

                                        update: sorry, apparently it wasn’t fully compatible until v1.5.1, also in October 2019; it was first listed in Plugins Admin in Notepad++ v7.8.1 – so from that point on, you don’t need to follow that outdated guide.

                                        f798369e-eab4-4bb7-9851-c17db123cd8e-image.png

                                        1 Reply Last reply Reply Quote 2
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