@PeterJones
Yes, with the newly introduced NPPM_CREATELEXER message we can get rid of the function determining definitions.
So something like this works now.
# -*- coding: utf-8 -*-
'''
Makes the builtin SAS lexer available for NPP.
To toggle the escape characters on/off one can
create another script with these two lines of code.
sas_lexer.show_escape_chars = not sas_lexer.show_escape_chars
editor.styleSetVisible(sas_lexer.SCE_ERR_ESCSEQ, sas_lexer.show_escape_chars)
'''
"""
Peter trying to adapt https://raw.githubusercontent.com/Ekopalypse/NppPythonScripts/master/npp/error_list_lexer_support2.py
based on Eko's comments https://community.notepad-plus-plus.org/topic/23147/missing-lexers-from-lexilla/7
"""
from Npp import notepad, editor, NOTIFICATION
from ctypes import windll, WINFUNCTYPE, addressof, create_unicode_buffer
from ctypes.wintypes import HWND, UINT, WPARAM, LPARAM, HMODULE, LPCWSTR, LPCSTR, LPVOID
class SasLexer:
def __init__(self):
'''
Initialize the class, should be called only once.
'''
# **************** configuration area ****************
# files with these extensions and a null lexer,
# aka normal text, assigned do get handled
self.known_extensions = ['sas']
#
# ****************************************************
self.SCE_SAS_DEFAULT = 0
self.SCE_SAS_COMMENT = 1
self.SCE_SAS_COMMENTLINE = 2
self.SCE_SAS_COMMENTBLOCK = 3
self.SCE_SAS_NUMBER = 4
self.SCE_SAS_OPERATOR = 5
self.SCE_SAS_IDENTIFIER = 6
self.SCE_SAS_STRING = 7
self.SCE_SAS_TYPE = 8
self.SCE_SAS_WORD = 9
self.SCE_SAS_GLOBAL_MACRO = 10
self.SCE_SAS_MACRO = 11
self.SCE_SAS_MACRO_KEYWORD = 12
self.SCE_SAS_BLOCK_KEYWORD = 13
self.SCE_SAS_MACRO_FUNCTION = 14
self.SCE_SAS_STATEMENT = 15
self.NPPM_CREATELEXER = (1024 + 1000 + 110)
self.SCI_SETILEXER = 4033
self.user32 = windll.user32
self.notepad_hwnd = self.user32.FindWindowW(u'Notepad++', None)
self.editor1_hwnd = self.user32.FindWindowExW(self.notepad_hwnd, None, u"Scintilla", None)
self.editor2_hwnd = self.user32.FindWindowExW(self.notepad_hwnd, self.editor1_hwnd, u"Scintilla", None)
self.lexer_name = create_unicode_buffer('sas')
self.user32.SendMessageW.argtypes = [HWND, UINT, WPARAM, LPARAM]
self.user32.SendMessageW.restype = LPARAM
notepad.callback(self.on_langchanged, [NOTIFICATION.LANGCHANGED])
notepad.callback(self.on_bufferactivated, [NOTIFICATION.BUFFERACTIVATED])
console.write("Initialized SAS lexer\n")
def __del__(self):
'''
Destructor (kind of)
'''
console.write("Clear SAS lexer callbacks...\n")
notepad.clearCallbacks(self.on_langchanged)
notepad.clearCallbacks(self.on_bufferactivated)
console.write("Destroyed SAS lexer\n")
def init_lexer(self):
'''
Initializes the lexer and its properties
Args:
None
Returns:
None
'''
editor.styleSetFore(self.SCE_SAS_DEFAULT , notepad.getEditorDefaultForegroundColor())
editor.styleSetFore(self.SCE_SAS_COMMENT , (0,255,0))
editor.styleSetFore(self.SCE_SAS_COMMENTLINE , (0,255,0))
editor.styleSetFore(self.SCE_SAS_COMMENTBLOCK , (0,255,0))
editor.styleSetFore(self.SCE_SAS_NUMBER , (255,0,0))
editor.styleSetFore(self.SCE_SAS_OPERATOR , (128,64,0))
editor.styleSetFore(self.SCE_SAS_IDENTIFIER , (64,64,64))
editor.styleSetFore(self.SCE_SAS_STRING , (128,128,128))
editor.styleSetFore(self.SCE_SAS_TYPE , (128,0,255)) # not implemented
editor.styleSetFore(self.SCE_SAS_WORD , (255,128,0)) # not implemented
editor.styleSetFore(self.SCE_SAS_GLOBAL_MACRO , (255,255,0)) # not implemented
editor.styleSetFore(self.SCE_SAS_MACRO , (0,0,255)) # start with %
editor.styleSetFore(self.SCE_SAS_MACRO_KEYWORD , (0,255,255)) # keywords/keywords1
editor.styleSetFore(self.SCE_SAS_BLOCK_KEYWORD , (0,0,127)) # keywords2
editor.styleSetFore(self.SCE_SAS_MACRO_FUNCTION , (0,127,127)) # keywords3
editor.styleSetFore(self.SCE_SAS_STATEMENT , (0xAA,0,0)) # keywords4
# ordering is important
ilexer_ptr = self.user32.SendMessageW(self.notepad_hwnd, self.NPPM_CREATELEXER, 0, addressof(self.lexer_name))
editor_hwnd = self.editor1_hwnd if notepad.getCurrentView() == 0 else self.editor2_hwnd
self.user32.SendMessageW(editor_hwnd, self.SCI_SETILEXER, 0, ilexer_ptr)
editor.setKeyWords(0, "%let %do")
editor.setKeyWords(1, "also cards class data input model ods proc var where")
editor.setKeyWords(2, "%printz")
editor.setKeyWords(3, "run")
console.write("SAS lexer: set styles\n")
def check_lexers(self):
'''
Checks if the current document is of interest.
Args:
None
Returns:
None
'''
has_no_lexer_assigned = editor.getLexerLanguage() == 'null'
_, _, file_extension = notepad.getCurrentFilename().rpartition('.')
if has_no_lexer_assigned and file_extension in self.known_extensions:
self.init_lexer()
console.write("check_lexers: {} {}\n".format(editor.getLexerLanguage(), has_no_lexer_assigned))
def on_bufferactivated(self, args):
'''
Callback which gets called every time one switches a document.
Triggers the check if the document is of interest.
Args:
provided by notepad object but none are of interest
Returns:
None
'''
self.check_lexers()
console.write("on_bufferactivated\n")
def on_langchanged(self, args):
'''
Callback gets called every time one uses the Language menu to set a lexer
Triggers the check if the document is of interest
Args:
provided by notepad object but none are of interest
Returns:
None
'''
self.check_lexers()
console.write("on_langchanged\n")
def main(self):
'''
Main function entry point.
Simulates the buffer_activated event to enforce
detection of current document and potential styling.
Args:
None
Returns:
None
'''
self.on_bufferactivated(None)
console.show()
sas_lexer = SasLexer()
sas_lexer.main()
""" example junk SAS (just lists some of the keywords):
%let
%do
also
cards
class
data
input
model
ods
proc
var
where
%printz
run
* ... comment style 1;
run
// ... comment style 2;
run
/* comment style 3 */
5 + 7 = 9
one
blech
"""
