Viewing file:  _errors.py (967 B) -rw-r--r--
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# coding: utf-8
"""
Helper for formatting exception messages. Exports the following items:
- unwrap()
"""
from __future__ import unicode_literals, division, absolute_import, print_function
import re
import textwrap
def unwrap(string, *params):
"""
Takes a multi-line string and does the following:
- dedents
- converts newlines with text before and after into a single line
- strips leading and trailing whitespace
:param string:
The string to format
:param *params:
Params to interpolate into the string
:return:
The formatted string
"""
output = textwrap.dedent(string)
# Unwrap lines, taking into account bulleted lists, ordered lists and
# underlines consisting of = signs
if output.find('\n') != -1:
output = re.sub('(?<=\\S)\n(?=[^ \n\t\\d\\*\\-=])', ' ', output)
if params:
output = output % params
output = output.strip()
return output
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