@alan-kilborn said in What is BUFFERENCODING.COOKIE ??:
How is one to tell the difference, in Pythonscript, if the current file’s encoding is UTF-8 without BOM, or for example, ISO-8859-1 ?
@peterjones said in What is BUFFERENCODING.COOKIE ??:
I thought there would be a way to read back the character set, distinct from the GETBUFFERENCODING message… but I cannot find a message that does that. Barring that, I thought that the scintilla object might have that info somewhere, but I cannot find it there, either. …maybe @Ekopalypse has insight on this one.
@ekopalypse said in What is BUFFERENCODING.COOKIE ??:
Sorry, but I have no idea.
So…it’s a bit cheesy, but one can read the status bar field that shows the encoding type to get this information (as its text string).
We’ve discussed in this forum how to get the status bar data before using a PythonScript, but I’ve revamped my code for doing it so I’ll post the whole thing here.
Here’s NotepadGetStatusBar.py with a demo at the end to show the current file’s encoding:
# -*- coding: utf-8 -*-
from __future__ import print_function
from Npp import *
import ctypes
from ctypes.wintypes import BOOL, HWND, WPARAM, LPARAM, UINT
class NGSB(object): # implements a "getStatusBar" function (complement to notepad.setStatusBar())
def __init__(self):
self.SendMessageW = ctypes.windll.user32.SendMessageW
LRESULT = LPARAM
self.SendMessageW.restype = LRESULT
self.SendMessageW.argtypes = [ HWND, UINT, WPARAM, LPARAM ]
self.create_unicode_buffer = ctypes.create_unicode_buffer
self.curr_class_256 = self.create_unicode_buffer(256)
self.STATUSBAR_HANDLE = None
self._determine_statusbar_handle()
assert self.STATUSBAR_HANDLE
def get_statusbar_by_section(self, statusbar_item_number):
# statusbar_item_number can be integer 0 thru 5 or one of:
# STATUSBARSECTION.DOCTYPE
# STATUSBARSECTION.DOCSIZE
# STATUSBARSECTION.CURPOS
# STATUSBARSECTION.EOFFORMAT
# STATUSBARSECTION.UNICODETYPE
# STATUSBARSECTION.TYPINGMODE
return self._get_statusbar_section(statusbar_item_number)
def get_statusbar_as_tuple(self):
section_list = [
STATUSBARSECTION.DOCTYPE,
STATUSBARSECTION.DOCSIZE,
STATUSBARSECTION.CURPOS,
STATUSBARSECTION.EOFFORMAT,
STATUSBARSECTION.UNICODETYPE,
STATUSBARSECTION.TYPINGMODE,
]
return tuple(list(map(lambda x: self._get_statusbar_section(x), section_list)))
def _determine_statusbar_handle(self):
WNDENUMPROC = ctypes.WINFUNCTYPE(BOOL, HWND, LPARAM)
FindWindowW = ctypes.windll.user32.FindWindowW
FindWindowExW = ctypes.windll.user32.FindWindowExW
EnumChildWindows = ctypes.windll.user32.EnumChildWindows
GetClassNameW = ctypes.windll.user32.GetClassNameW
self.STATUSBAR_HANDLE = None
def enum_callback_fn(hwnd, lparam):
GetClassNameW(hwnd, self.curr_class_256, 256)
if self.curr_class_256.value.lower() == "msctls_statusbar32":
self.STATUSBAR_HANDLE = hwnd
return False # stop the enumeration
return True # continue the enumeration
npp_hwnd = FindWindowW(u"Notepad++", None)
#print('npp_hwnd:', npp_hwnd)
EnumChildWindows(npp_hwnd, WNDENUMPROC(enum_callback_fn), 0)
#print('self.STATUSBAR_HANDLE:', self.STATUSBAR_HANDLE)
def _get_statusbar_section(self, statusbar_item_number):
assert statusbar_item_number <= 5
WM_USER = 0x400
SB_GETTEXTLENGTHW = WM_USER + 12
SB_GETTEXTW = WM_USER + 13
SBT_OWNERDRAW = 0x1000
retcode = self.SendMessageW(self.STATUSBAR_HANDLE, SB_GETTEXTLENGTHW, statusbar_item_number, 0)
length = retcode & 0xFFFF
type = (retcode >> 16) & 0xFFFF
assert (type != SBT_OWNERDRAW)
text_buffer = self.create_unicode_buffer(length)
retcode = self.SendMessageW(self.STATUSBAR_HANDLE, SB_GETTEXTW, statusbar_item_number, ctypes.addressof(text_buffer))
retval = '{}'.format(text_buffer[:length])
return retval
if __name__ == '__main__':
print(NGSB().get_statusbar_by_section(STATUSBARSECTION.UNICODETYPE))
Running the script will print the current file’s encoding (from statusbar information) to the Pythonscript console window.
