UDL: Suffix Mode

Michael Miller31

Michael Miller31

Variables are currently in dark green. It would be nice if I could have a different color if a variable ends with a “$”.

Eko palypse

Ok, you are using npp 7.5.9 which means you should be able to use
Plugin Manger to install PythonScript plugin.
(Just keep in mind that if you upgrade to a newer (but still betas) version
there are a lot of changes in the plugin area!!)

Could you just copy and paste the example - makes it easier for me to use it for testing :-D

Alan Kilborn

@Michael-Miller31

Eko has offered to create something for you (I think). It would be nice if you could give him some actual text – not just a screenshot – to start working with.

Michael Miller31

My apologies. I thought you were looking for something visual. Thanks again!

for index=1 to udim(ButtonNumbers)
	if Fkey==ButtonNumbers(index) then 
		let FnHasBeenPressed=1
		let OrderNumber$=OrderNumbers$(FirstOrderOfPage-61+index)
		if udim(Keys$) then
			let UniqueKey$=Keys$(FirstOrderOfPage-61+index)
		end if 
	end if
next index

Eko palypse

Is it always a word which ends with $ or might it be that
non-word characters like minus underscore etc… are part of
the variable as well.
Basically I’m asking if a regex like \w+?\$ would do the job
or if it is needed to have something like \b.+?\$\b

Eko palypse

@Eko-palypse said:

or maybe a better approach - what allows the language how a variable
can be defined

Michael Miller31

Always with $. The only time $ would ever be used in this language is to end a string variable.

Eko palypse

No, there is a misunderstanding, if I use \w+?\$
then a variable like UniqueKey$ will be colored but a variable like
Unique-Key$ won’t be.
If I know what the language allows, which chars can be used for a
variable name, then we can find the right regex to make this work.

Michael Miller31

String functions can also end with a $ but those I have listed as a keyword in my UDL with prefix mode enabled. Since every function begins with “fn”.

Eko palypse

Good to know - do you have a reference to the language you are using?

Michael Miller31

http://brwiki2.brulescorp.com/index.php?title=Business_Rules! This is a link to the wiki.

Michael Miller31

I can also give you the section from my userDefineLang.xml if it’s helpful

Eko palypse

So this is what we are looking for, right?

Michael Miller31

exactly

Eko palypse

First the script

# -*- coding: utf-8 -*-

from Npp import editor, editor1, editor2, notepad, NOTIFICATION, SCINTILLANOTIFICATION, INDICATORSTYLE
import ctypes
import ctypes.wintypes as wintypes

from collections import OrderedDict

try:
    EnhanceUDLLexer().main()
except NameError:

    user32 = wintypes.WinDLL('user32')

    WM_USER = 1024
    NPPMSG = WM_USER+1000
    NPPM_GETLANGUAGEDESC = NPPMSG+84


    class SingletonEnhanceUDLLexer(type):
        _instance = None
        def __call__(cls, *args, **kwargs):
            if cls._instance is None:
                cls._instance = super(SingletonEnhanceUDLLexer, cls).__call__(*args, **kwargs)
            return cls._instance


    class EnhanceUDLLexer(object):

        __metaclass__ = SingletonEnhanceUDLLexer

        @staticmethod
        def rgb(r,g,b):
            return (b << 16) + (g << 8) + r


        @staticmethod
        def paint_it(color, pos, length):
            if pos >= 0:
                editor.setIndicatorCurrent(0)
                editor.setIndicatorValue(color)
                editor.indicatorFillRange(pos, length)


        def style(self):
            start_line = editor.getFirstVisibleLine()
            end_line = start_line + editor.linesOnScreen()
            start_position = editor.positionFromLine(start_line)
            end_position = editor.getLineEndPosition(end_line)
            editor.setIndicatorCurrent(0)
            editor.indicatorClearRange(0, editor.getTextLength())
            for color, regex in self.regexes.items():
                editor.research(regex[0],
                                lambda m: self.paint_it(color[1],
                                                        m.span(regex[1])[0],
                                                        m.span(regex[1])[1] - m.span(regex[1])[0]),
                                0,
                                start_position,
                                end_position)


        def configure(self):
            SC_INDICVALUEBIT = 0x1000000
            SC_INDICFLAG_VALUEFORE = 1
            # editor.indicSetFore(0, (181, 188, 201))
            editor1.indicSetStyle(0, INDICATORSTYLE.TEXTFORE)
            editor1.indicSetFlags(0, SC_INDICFLAG_VALUEFORE)
            editor2.indicSetStyle(0, INDICATORSTYLE.TEXTFORE)
            editor2.indicSetFlags(0, SC_INDICFLAG_VALUEFORE)
            self.regexes = OrderedDict()

            # configuration area
            # self.regexes is a dictionary, basically a key=value list
            # the key is tuple starting with an increasing number and
            # the color which should be used, ored with SC_INDICVALUEBIT
            # the value is a raw bytestring which is the regex whose
            # matches get styled with the previously defined color
            #
            # using OrderedDict ensures that the regex will be
            # always executed in the same order.
            # This might matter if more than one regex is used.
            self.regexes[(0, self.rgb(79, 175, 239)  | SC_INDICVALUEBIT)] = (r'fn[A-Za-z0-9_]+?\$|([A-Za-z0-9_]+?\$)', 1)

            # defining the lexer_name ensures that
            # only this type of document get styled
            # should be the same name as displayed in first field of statusbar
            self.lexer_name = 'User Defined language file - BR! Source'



        def get_lexer_name(self):
            '''
                returns the text which is shown in the
                first field of the statusbar
            '''
            language = notepad.getLangType()
            length = user32.SendMessageW(self.npp_hwnd, NPPM_GETLANGUAGEDESC, language, None)
            buffer = ctypes.create_unicode_buffer(u' '*length)
            user32.SendMessageW(self.npp_hwnd, NPPM_GETLANGUAGEDESC, language, ctypes.byref(buffer))
            # print buffer.value  # uncomment if unsure how the lexername in configure should look like - npp restart needed
            return buffer.value


        def __init__(self):
            editor.callbackSync(self.on_updateui, [SCINTILLANOTIFICATION.UPDATEUI])
            notepad.callback(self.on_langchanged, [NOTIFICATION.LANGCHANGED])
            notepad.callback(self.on_bufferactivated, [NOTIFICATION.BUFFERACTIVATED])
            self.__is_lexer_doc = False
            self.lexer_name = None
            self.npp_hwnd = user32.FindWindowW(u'Notepad++', None)
            self.configure()


        def set_lexer_doc(self, bool_value):
            editor.setProperty(self.__class__.__name__, 1 if bool_value is True else -1)
            self.__is_lexer_doc = bool_value


        def on_bufferactivated(self, args):
            if (self.get_lexer_name() == self.lexer_name) and (editor.getPropertyInt(self.__class__.__name__) != -1):
                self.__is_lexer_doc = True
            else:
                self.__is_lexer_doc = False


        def on_updateui(self, args):
            if self.__is_lexer_doc:
                self.style()


        def on_langchanged(self, args):
            self.set_lexer_doc(True if self.get_lexer_name() == self.lexer_name else False)


        def main(self):
            self.set_lexer_doc(True)
            self.style()


    EnhanceUDLLexer().main()

Eko palypse

Do the following

copy the script
goto Plugins->Python Script->New Script
give it a meaningful name and press save button
paste the script into the newly ceated document
save it
open one of your BR! Source files
click on Plugins->Python Script->Scripts->NAME_OF_THE_NEWLY_CREATED_PYTHONSCRIPT

If you want to know the details, let me know.

Eko palypse

btw, when it works like you want and want it to be available automatically
on every npp startup we need to create a USER startup.py but
I guess this can be discussed it the script is useful to you at all

Michael Miller31

Thanks for putting the time into this!

First, will this work on 64 bit N++?

I had some trouble finding a version of Python Script that was compatible but I managed to find a beta version.

also, I’m getting this error.

Traceback (most recent call last):
File “C:\Users\mmiller\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts\create_strings.py”, line 4, in <module>
import ctypes
File “C:\Program Files\Notepad++\plugins\PythonScript\lib\ctypes_init_.py”, line 7, in <module>
from _ctypes import Union, Structure, Array
ImportError: No module named _ctypes

Eko palypse

Yes, as I’m using x64 version as well.
Where did you download pythonscript plugin from?
Why didn’t you use Plugin Manager?
The official release channel for python script plugin is here.