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textwrap, but savvy to ANSI colors and styles

Project description

travisci PyPI Package latest release Supported versions Supported implementations Wheel packaging support Test line coverage

ansiwrap wraps text, like the standard textwrap module. But it also correctly wraps text that contains ANSI control sequences that colorize or style text.

Where textwrap is fooled by the raw string length of those control codes, ansiwrap is not; it understands that however much those codes affect color and display style, they have no logical length.

The API mirrors the wrap, fill, and shorten functions of textwrap. For example:

from __future__ import print_function
from colors import *     # ansicolors on PyPI
from ansiwrap import *

s = ' '.join([red('this string'),
              blue('is going on a bit long'),
              green('and may need to be'),
              color('shortened a bit', fg='purple')])

print('-- original string --')
print(s)
print('-- now filled --')
print(fill(s, 20))
print('-- now shortened / truncated --')
print(shorten(s, 20, placeholder='...'))

It also exports several other functions:

  • ansilen (giving the effective length of a string, ignoring ANSI control codes)
  • ansi_terminate_lines (propagates control codes though a list of strings/lines and terminates each line.)
  • strip_color (removes ANSI control codes from a string)

See also the enclosed demo.py.

https://content.screencast.com/users/jonathaneunice/folders/Jing/media/8db64be2-01cc-4da4-b46a-789c53c63b44/00000569.png

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