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bpo-33610: validate non-negative integer inputs in IDLE's config (GH-14822) 

(cherry picked from commit 1ebee37dde)

Co-authored-by: Tal Einat <taleinat@gmail.com>
This commit is contained in:
Miss Islington (bot) 2019-07-23 03:21:52 -07:00 committed by GitHub
parent 83cec020ba
commit 28815e0e2c
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1 changed files with 31 additions and 7 deletions
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38
Lib/idlelib/configdialog.py
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@ -9,6 +9,8 @@ Note that tab width in IDLE is currently fixed at eight due to Tk issues.
Refer to comments in EditorWindow autoindent code for details.
"""
import re
from tkinter import (Toplevel, Listbox, Text, Scale, Canvas,
StringVar, BooleanVar, IntVar, TRUE, FALSE,
TOP, BOTTOM, RIGHT, LEFT, SOLID, GROOVE,
@ -1764,9 +1766,18 @@ class GenPage(Frame):
def __init__(self, master):
super().__init__(master)
self.init_validators()
self.create_page_general()
self.load_general_cfg()
def init_validators(self):
digits_or_empty_re = re.compile(r'[0-9]*')
def is_digits_or_empty(s):
"Return 's is blank or contains only digits'"
return digits_or_empty_re.fullmatch(s) is not None
self.digits_only = (self.register(is_digits_or_empty), '%P',)
def create_page_general(self):
"""Return frame of widgets for General tab.
@ -1883,16 +1894,23 @@ class GenPage(Frame):
frame_win_size, text='Initial Window Size (in characters)')
win_width_title = Label(frame_win_size, text='Width')
self.win_width_int = Entry(
frame_win_size, textvariable=self.win_width, width=3)
frame_win_size, textvariable=self.win_width, width=3,
validatecommand=self.digits_only, validate='key',
)
win_height_title = Label(frame_win_size, text='Height')
self.win_height_int = Entry(
frame_win_size, textvariable=self.win_height, width=3)
frame_win_size, textvariable=self.win_height, width=3,
validatecommand=self.digits_only, validate='key',
)
frame_autocomplete = Frame(frame_window, borderwidth=0,)
auto_wait_title = Label(frame_autocomplete,
text='Completions Popup Wait (milliseconds)')
self.auto_wait_int = Entry(frame_autocomplete, width=6,
textvariable=self.autocomplete_wait)
textvariable=self.autocomplete_wait,
validatecommand=self.digits_only,
validate='key',
)
frame_paren1 = Frame(frame_window, borderwidth=0)
paren_style_title = Label(frame_paren1, text='Paren Match Style')
@ -1922,20 +1940,26 @@ class GenPage(Frame):
format_width_title = Label(frame_format,
text='Format Paragraph Max Width')
self.format_width_int = Entry(
frame_format, textvariable=self.format_width, width=4)
frame_format, textvariable=self.format_width, width=4,
validatecommand=self.digits_only, validate='key',
)
frame_context = Frame(frame_editor, borderwidth=0)
context_title = Label(frame_context, text='Max Context Lines :')
self.context_int = Entry(
frame_context, textvariable=self.context_lines, width=3)
frame_context, textvariable=self.context_lines, width=3,
validatecommand=self.digits_only, validate='key',
)
# Frame_shell.
frame_auto_squeeze_min_lines = Frame(frame_shell, borderwidth=0)
auto_squeeze_min_lines_title = Label(frame_auto_squeeze_min_lines,
text='Auto-Squeeze Min. Lines:')
self.auto_squeeze_min_lines_int = Entry(
frame_auto_squeeze_min_lines, width=4,
textvariable=self.auto_squeeze_min_lines)
frame_auto_squeeze_min_lines, width=4,
textvariable=self.auto_squeeze_min_lines,
validatecommand=self.digits_only, validate='key',
)
# frame_help.
frame_helplist = Frame(frame_help)