231 lines
6.4 KiB
Python
231 lines
6.4 KiB
Python
# -*- coding: utf-8 -*-
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""" formatting.py - handy functions for formatting text
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this file contains code from the following URL:
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<http://code.djangoproject.com/svn/django/trunk/django/utils/text.py>
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"""
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import re
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from HTMLParser import HTMLParser
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import htmlentitydefs
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class HTMLTextExtractor(HTMLParser):
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def __init__(self):
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HTMLParser.__init__(self)
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self.result = []
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def handle_data(self, d):
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self.result.append(d)
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def handle_charref(self, number):
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codepoint = int(number[1:], 16) if number[0] in (u'x', u'X') else int(number)
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self.result.append(unichr(codepoint))
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def handle_entityref(self, name):
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codepoint = htmlentitydefs.name2codepoint[name]
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self.result.append(unichr(codepoint))
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def get_text(self):
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return u''.join(self.result)
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def strip_html(html):
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s = HTMLTextExtractor()
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s.feed(html)
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return s.get_text()
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def munge(text, munge_count=0):
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"""munges up text."""
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reps = 0
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for n in xrange(len(text)):
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rep = character_replacements.get(text[n])
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if rep:
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text = text[:n] + rep.decode('utf8') + text[n + 1:]
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reps += 1
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if reps == munge_count:
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break
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return text
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character_replacements = {
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'a': 'ä',
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'b': 'Б',
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'c': 'ċ',
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'd': 'đ',
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'e': 'ë',
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'f': 'ƒ',
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'g': 'ġ',
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'h': 'ħ',
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'i': 'í',
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'j': 'ĵ',
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'k': 'ķ',
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'l': 'ĺ',
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'm': 'ṁ',
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'n': 'ñ',
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'o': 'ö',
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'p': 'ρ',
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'q': 'ʠ',
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'r': 'ŗ',
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's': 'š',
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't': 'ţ',
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'u': 'ü',
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'v': '',
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'w': 'ω',
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'x': 'χ',
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'y': 'ÿ',
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'z': 'ź',
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'A': 'Å',
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'B': 'Β',
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'C': 'Ç',
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'D': 'Ď',
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'E': 'Ē',
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'F': 'Ḟ',
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'G': 'Ġ',
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'H': 'Ħ',
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'I': 'Í',
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'J': 'Ĵ',
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'K': 'Ķ',
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'L': 'Ĺ',
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'M': 'Μ',
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'N': 'Ν',
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'O': 'Ö',
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'P': 'Р',
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'Q': 'Ｑ',
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'R': 'Ŗ',
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'S': 'Š',
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'T': 'Ţ',
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'U': 'Ů',
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'V': 'Ṿ',
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'W': 'Ŵ',
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'X': 'Χ',
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'Y': 'Ỳ',
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'Z': 'Ż'}
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def capitalize_first(line):
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"""
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capitalises the first letter of words
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(keeps other letters intact)
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"""
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return ' '.join([s[0].upper() + s[1:] for s in line.split(' ')])
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def multiword_replace(text, wordDic):
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"""
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take a text and replace words that match a key in a dictionary with
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the associated value, return the changed text
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"""
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rc = re.compile('|'.join(map(re.escape, wordDic)))
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def translate(match):
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return wordDic[match.group(0)]
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return rc.sub(translate, text)
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def truncate_words(content, length=10, suffix='...'):
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"""Truncates a string after a certain number of words."""
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nmsg = content.split(" ")
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out = None
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x = 0
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for i in nmsg:
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if x <= length:
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if out:
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out = out + " " + nmsg[x]
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else:
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out = nmsg[x]
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x += 1
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if x <= length:
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return out
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else:
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return out + suffix
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# from <http://stackoverflow.com/questions/250357/smart-truncate-in-python>
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def truncate_str(content, length=100, suffix='...'):
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"""Truncates a string after a certain number of chars."""
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if len(content) <= length:
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return content
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else:
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return content[:length].rsplit(' ', 1)[0] + suffix
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# ALL CODE BELOW THIS LINE IS COVERED BY THE FOLLOWING AGREEMENT:
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# Copyright (c) Django Software Foundation and individual contributors.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# 3. Neither the name of Django nor the names of its contributors may be used
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# to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"AND
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#ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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#WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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#DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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#ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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#(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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#LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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#ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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#(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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#SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Expression to match some_token and some_token="with spaces" (and similarly
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# for single-quoted strings).
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split_re = re.compile(r"""((?:[^\s'"]*(?:(?:"(?:[^"\\]|\\.)*" | '(?:["""
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r"""^'\\]|\\.)*')[^\s'"]*)+) | \S+)""", re.VERBOSE)
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def smart_split(text):
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r"""
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Generator that splits a string by spaces, leaving quoted phrases together.
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Supports both single and double quotes, and supports escaping quotes with
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backslashes. In the output, strings will keep their initial and trailing
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quote marks and escaped quotes will remain escaped (the results can then
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be further processed with unescape_string_literal()).
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>>> list(smart_split(r'This is "a person\'s" test.'))
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[u'This', u'is', u'"a person\\\'s"', u'test.']
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>>> list(smart_split(r"Another 'person\'s' test."))
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[u'Another', u"'person\\'s'", u'test.']
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>>> list(smart_split(r'A "\"funky\" style" test.'))
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[u'A', u'"\\"funky\\" style"', u'test.']
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"""
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for bit in split_re.finditer(text):
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yield bit.group(0)
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def get_text_list(list_, last_word='or'):
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"""
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>>> get_text_list(['a', 'b', 'c', 'd'])
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u'a, b, c or d'
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>>> get_text_list(['a', 'b', 'c'], 'and')
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u'a, b and c'
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>>> get_text_list(['a', 'b'], 'and')
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u'a and b'
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>>> get_text_list(['a'])
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u'a'
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>>> get_text_list([])
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u''
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"""
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if len(list_) == 0:
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return ''
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if len(list_) == 1:
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return list_[0]
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return '%s %s %s' % (
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# Translators: This string is used as a separator between list elements
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', '.join([i for i in list_][:-1]),
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last_word, list_[-1])
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