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    [New Plugin] LuaScript

    Scheduled Pinned Locked Moved Notepad++ & Plugin Development
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    • dailD
      dail
      last edited by dail

      @Claudia-Frank

      You asked for ;-)

      Yep! Alot of this has been driven by my specific needs so the development can be kind of narrow. So it is always good to hear others’ ideas!

      make it theme aware

      Notepad++ doesn’t expose near enough API to make this possible without very ugly hacks. I tried a few hacks without much luck. However, there is a way partial way around this. There is a console object that you can use that is just like the editor object but it controls (no surprise) the console. In your startup script you can manually configure the styles for your theme doing something like this for each style Lua uses:

      console.StyleFore[SCE_LUA_COMMENT] = 0x272822
      

      This is not dynamic in any way, but if you are desperate you can hard-code alot of values.

      make userdata visible so that reflection can be used to execute code

      Care to elaborate a bit?

      possibility to clear console

      Good idea. Until then you can use this code:

      function clear()
      	console.ReadOnly = false
      	console:ClearAll()
      	console.ReadOnly = true
      end
      

      But agree a more user-friendly and intuitive option should also be added.

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      • Claudia FrankC
        Claudia Frank
        last edited by

        In python script you could do

        dir(editor)
        

        to get the list of editor functions.
        With lua you could use getmetatable(editor) to get the same
        but editor must have a metatable of course.

        My idea behind is to use that kind of reflection to create automated test cases and
        easily see if there are new functions. Another idea might be to enhance npp with
        lua script for a dynamic intellisense and debugging functionality.

        Cheers
        Claudia

        1 Reply Last reply Reply Quote 0
        • dailD
          dail
          last edited by

          Alot of the internal code came directly from SciTE. Mainly because I had no idea what I was doing (and honestly still don’t understand alot of it) ;)

          Since the editor object has >400 methods/properties (not including getters and setters) there isn’t a Lua table that holds all this kind of information. Methods and properties are looked up as they are used, which helps reduce memory, etc especially since only a hand full of them are probably going to be used on a regular basis. That being said I’m not opposed to exposing some way to get this data. I’m certainly open to suggestions and use-cases.

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          • Claudia FrankC
            Claudia Frank
            last edited by Claudia Frank

            To be honest, I just read about the possibility of having userdata exposing metable a few days ago. ;-)
            Seems to be a new feature in lua 5.3 - I will try to get more details about it and if I feel I understood enough
            I might open a feature request ;-)

            Cheers
            Claudia

            1 Reply Last reply Reply Quote 1
            • dailD
              dail
              last edited by

              @Yaron

              In case you are curious, this is how you’d get Visual Studio-like copy and paste functionality:

              -- Mimic Visual Studio's "Ctrl+C" that copies the entire line if nothing is selected
              npp.AddShortcut("Copy Allow Line", "Ctrl+C", function()
                  editor:CopyAllowLine()
              end)
              
              -- Mimic Visual Studio's "Ctrl+X" that cuts the line if nothing is selected
              npp.AddShortcut("Cut Allow Line", "Ctrl+X", function()
                  if editor.SelectionEmpty then
                      editor:CopyAllowLine()
                      editor:LineDelete()
                  else
                      editor:Cut()
                  end
              end)
              

              Also shortcuts show up in the plugin’s main menu so in theory you can assign them to N++'s context menu.

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

                Hi All,

                A simple method to mimic the Visual Studio’s shortcuts ( CTRL +C/X ) is to change the default shortcuts of the lines 91 and 92, of the Scintilla commands tab, in the Shortcut Mapper !

                Just set the shortcut ALT + CTRL + X, in line 91 and the shortcut ALT + CTRL + C, in line 92

                Of course, I need to use the additional ALT key. So, it’s not as neat as the Dail’s Lua script :-) But this may help, anyway !

                REMARK : If I remember correctly, I think that :

                • The ALT + CTRL + C shortcut is used, by default, to open the Color Picker plugin

                • The ALT + CTRL + X shortcut performs, by default, the option Translate CamelCase/underscore_case of the Translate plugin

                So, be aware of that, if you use the Color Picker and/or Translate plugins !

                Cheers,

                guy038

                1 Reply Last reply Reply Quote 0
                • dailD
                  dail
                  last edited by

                  Just using SCI_LINECUT and SCI_LINECOPY doesn’t quite match Visual Studio’s behavior. ;)

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                  • guy038G
                    guy038
                    last edited by

                    Hi Dail,

                    I, first, based on your two comments, in your Lua script, below :

                    – Mimic Visual Studio’s “Ctrl+C” that copies the entire line if nothing is selected

                    – Mimic Visual Studio’s “Ctrl+X” that cuts the line if nothing is selected

                    As you said that SCI_LINECUT and SCI_LINECOPY don’t have exactly the same behaviour :

                    • I downloaded your last 0.2.0 version of your Lua plugin

                    • After some searches, in your Lua documentation, I understood that the Notepad object npp.AddShortcut must be called, on startup only !

                    • So, I put your lua script text, inside the StartUp script and save it. Then, I closed and restarted my 6.8.8 N++.

                    => As expected, the new commands CTRL + C and CTRL + X do the job, nicely, even if no selection exists !

                    Unfortunately, I couldn not see any difference with the Scintilla commands SCI_LINECUT and SCI_LINECOPY ( that I kept, with the ALT + CTRL + X/C shortcuts ), even after pasting the clipboard contents, in an other document !

                    What I’m missing ?

                    Cheers,

                    guy038

                    1 Reply Last reply Reply Quote 0
                    • dailD
                      dail
                      last edited by dail

                      With the two shortcuts I’ve posted they work to enhance the normal copy and cut functionality. If there is a selection they both work as normal copy/cut. If there is no selection then they behave by copying or cutting the line. However, SCI_LINECUT and SCI_LINECOPY doesn’t pay any attention the the selection.

                      Secondly, to quote the documentation about SCI_COPYALLOWLINE

                      On Windows, an extra “MSDEVLineSelect” marker is added to the clipboard which is then used in SCI_PASTE to paste the whole line before the current line.

                      So the difference is when it is pasted it replaces the entire line instead of pasting the line directly at the cursor’s position.

                      Similar effects can be achieved both ways but users that are use to Visual Studios will definitely notice a difference.

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                      • YaronY
                        Yaron
                        last edited by

                        Hello all,

                        @Claudia-Frank,
                        Thank you for your contribution (and generosity…).

                        @guy038,
                        Thank you for your contribution. Nice to see an old friend. :)

                        @dail,
                        Thank you for further developing and improving this important plugin. Great work.

                        And thanks also for referring to my Copy Line request. Really nice.

                        It would be nice to have a function coping the current line regardless of any selection (like editor.lineCopy() in PythonScript).

                        I actually meant an option to copy the entire line even if part of it is selected.
                        In a future version. :)

                        And, with your permission, two more requests:

                        1. A context-menu in the Console Output field.
                        2. An option to change text direction (LTR/RTL) in the Console Input field.
                          (PythonScript uses the System Edit-Context-Menu which includes this functionality).

                        Best regards.

                        1 Reply Last reply Reply Quote 0
                        • dailD
                          dail
                          last edited by

                          @Yaron

                          I actually meant an option to copy the entire line even if part of it is selected.

                          If I understand what you are wanting you can simply use editor:LineCopy()

                          A context-menu in the Console Output field.

                          Would be simple to add. If you want you can open a feature request on Github and we can discuss it more there.

                          An option to change text direction (LTR/RTL) in the Console Input field.

                          One of the change I made from PythonScript was replace the input field with a Scintilla control. So I’m not sure how easy this would be to change the text direction.

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                          • guy038G
                            guy038
                            last edited by

                            Hello Dail,

                            Thanks for your quick reply ! But, even before opening my laptop and seeing your post, this morning ( in France ! ), I had understood the differences between the two behaviours. Indeed, although I ran the copy and cut commands, with a previous selection, I did not see the differences, at first sight !

                            Sorry. It would have saved you to reply me about this matter, as you, certainly, need time to develop your Lua plugin :-(

                            Best Regards

                            guy038

                            BTW, it’s a chance that you give the Visual Studio’s method, about copy/cut text ! Because, the two commands editor:LineCopy() and editor:LineDelete() are absent, from your Lua Script documentation, at the address below :

                            https://github.com/dail8859/LuaScript/blob/master/doc/editor.md

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                            • YaronY
                              Yaron
                              last edited by

                              Hello dail,

                              Thanks for replying.

                              Yes, I was looking for ‘editor:LineCopy()’.
                              Not finding it in the documentation page, I assumed it was not available.

                              I’ve opened two issues on GitHub.

                              Best regards.

                              1 Reply Last reply Reply Quote 0
                              • dailD
                                dail
                                last edited by

                                A new version has been release. v0.4.0

                                Now with API documentation. https://dail8859.github.io/LuaScript/

                                This release includes bug fixes, GUI enhancements, and a large portion of the Notepad++ message and notifications are available.

                                As always, comments/questions are welcome.

                                1 Reply Last reply Reply Quote 0
                                • M
                                  MaximilianKohler
                                  last edited by MaximilianKohler

                                  The startup script doesn’t seem to work with the PortableApps dot com version. I was trying to use this:

                                  community.notepad-plus-plus dot org/topic/11233/disable-ascii-control-characters-shortcuts/5

                                  I’ll post to the portableapps forum and see what they say:
                                  portableapps dot com/node/70143

                                  Alan KilbornA mpheathM 2 Replies Last reply Reply Quote 0
                                  • Alan KilbornA
                                    Alan Kilborn @MaximilianKohler
                                    last edited by

                                    @MaximilianKohler said in [New Plugin] LuaScript:

                                    with the PortableApps dot com version

                                    This isn’t a supported version.
                                    Best thing to do is not use it.
                                    Notepad++ itself distributes a “portable” version – use that.

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                                    • mpheathM
                                      mpheath @MaximilianKohler
                                      last edited by mpheath

                                      @MaximilianKohler Do a simple test to debug.

                                      startup.lua:

                                      -- Startup script
                                      -- Changes will take effect once Notepad++ is restarted
                                      
                                      print('Hello World')
                                      

                                      Console:

                                      Hello World
                                      Lua 5.3.5  Copyright (C) 1994-2018 Lua.org, PUC-Rio
                                      

                                      With the PortableApps distribution of Notepad++, If you install a plugin and Notepad++ restarts then the environmental variables related to PortableApps are not set from that instance of Notepad++. You need to close that instance and start a new instance using Notepad++Portable.exe to have those environmental variables set. You can check by running CMD and use the command set from Notepad++ to see all the extra environmental variables that are added or values being modified.

                                      1 Reply Last reply Reply Quote 1
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