-----Původní zpráva-----
From: Michael Lange
Sent: Monday, January 03, 2011 6:14 PM
To: tkinter-discuss@python.org
Subject: Re: [Tkinter-discuss] Text and newlines [newbie Q]
thanks for Tab info.
But in insertion tabs im with no luck.
im binding Return event into parse method where i parse line for regexp.
if regexp found i want insert some indent using tabs or spaces on new line.
but with edit.insert('end', '\t') tab is inserted right after ':' on the
same line[1].
if i use insert('end', '\n\t') tabs are on new line[2] [ this is i want] but
cursor is on next line[3].
nevermind here's example:
import re
from tkinter import *
from tkinter.font import Font
def get_current_line():
start = text.index('insert linestart')
end = text.index('insert')
return text.get(start, end)
def parse(event=None):
line = get_current_line()
match = re.search(reg, line)
if match:
print('match!', match.group('defkey'))
text.insert('end', '\t')
root=Tk()
f = Font(family='courier', size=-12)
text = Text(root, font=f, tabs=(4 * f.measure(0), 'left'),
tabstyle='wordprocessor')
text.pack(fill=BOTH, expand=1)
text.bind('<Return>', parse)
text.focus()
pattern = r"^.*define\s(?P<defkey>.*):$"
reg = re.compile(pattern, re.S|re.M)
root.mainloop()
i'm on python 3.1.3 and win7.
Hi,
Thus spoketh <spooky...@tbs-software.com>
unto us on Mon, 3 Jan 2011 13:50:44 +0100:
hi all,
i have little method for parsing line in tkinter.Text.
text.bind(‘<Return>’, parse)
def parse(event=None):
text = get_current_line() #
this give me whole text on line pattern = r”^.*define\s<?
P<defkeyword>.*):$” # simple search pattern reg = re.compile(pattern,
re.S|re.M) # for use with more patterns match =
re.search(reg, text) if match:
print(‘found %s definition.’ % match.group(‘defkeyword’))
text.insert(‘end’, ‘\n’)
text.insert(‘insert linestart’, ‘\t’)
there is small problem for me. how to insert tab into newline without
next ‘\n’ ? i want only 2 lines not 3.
i want:
1. define some:
2. .......[next insert will be here]
and not:
1. define some:
2. .......
3. [now ‘end’ points here]
I am not sure what exactly you mean, simply changing your example into
if match:
print(‘found %s definition.’ % match.group(‘defkeyword’))
text.insert(‘end’, ‘\t’)
does probably not what you want?
and second how i define width of tab in chars not in pixels using
text.config(tabs=X) thanks.
This is explained in the text man page:
To achieve a different standard spacing, for example every 4
characters, simply configure the widget with ``-tabs "[expr {4 * [font
measure $font 0]}] left" -tabstyle wordprocessor''.
"Translated" into python this would be something like:
from Tkinter import *
import tkFont
root=Tk()
f = tkFont.Font(family='courier', size=-12)
text = Text(root, font=f, tabs=(4 * f.measure(0), 'left'),
tabstyle='wordprocessor')
text.pack(fill=BOTH, expand=1)
root.mainloop()
Obviously f.measure(0) returns the average width of a character, although
this behavior doesn't seem to be documented.
Regards
Michael
.-.. .. ...- . .-.. --- -. --. .- -. -.. .--. .-. --- ... .--. . .-.
Only a fool fights in a burning house.
-- Kank the Klingon, "Day of the Dove", stardate unknown
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