annotate planemo/lib/python3.7/site-packages/boltons/strutils.py @ 1:56ad4e20f292 draft

"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
parents d30785e31577
children
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1 # -*- coding: utf-8 -*-
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2 """So much practical programming involves string manipulation, which
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3 Python readily accommodates. Still, there are dozens of basic and
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4 common capabilities missing from the standard library, several of them
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5 provided by ``strutils``.
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6 """
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7
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8 from __future__ import print_function
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9
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10 import re
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11 import sys
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12 import uuid
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13 import zlib
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14 import string
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15 import unicodedata
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16 import collections
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17 from gzip import GzipFile
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18
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19 try:
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20 from cStringIO import cStringIO as StringIO
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21 except ImportError:
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22 from io import BytesIO as StringIO
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23
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24 try:
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25 from collections.abc import Mapping
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26 except ImportError:
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27 from collections import Mapping
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28
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29 try:
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30 unicode, str, bytes, basestring = unicode, str, str, basestring
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31 from HTMLParser import HTMLParser
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32 import htmlentitydefs
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33 except NameError: # basestring not defined in Python 3
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34 unicode, str, bytes, basestring = str, bytes, bytes, (str, bytes)
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35 unichr = chr
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36 from html.parser import HTMLParser
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37 from html import entities as htmlentitydefs
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38
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39 try:
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40 import __builtin__ as builtins
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41 except ImportError:
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42 import builtins
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43
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44 __all__ = ['camel2under', 'under2camel', 'slugify', 'split_punct_ws',
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45 'unit_len', 'ordinalize', 'cardinalize', 'pluralize', 'singularize',
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46 'asciify', 'is_ascii', 'is_uuid', 'html2text', 'strip_ansi',
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47 'bytes2human', 'find_hashtags', 'a10n', 'gzip_bytes', 'gunzip_bytes',
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48 'iter_splitlines', 'indent', 'escape_shell_args',
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49 'args2cmd', 'args2sh', 'parse_int_list', 'format_int_list',
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50 'int_list_complement', 'int_list_to_int_tuples', 'unwrap_text']
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51
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52
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53 _punct_ws_str = string.punctuation + string.whitespace
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54 _punct_re = re.compile('[' + _punct_ws_str + ']+')
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55 _camel2under_re = re.compile('((?<=[a-z0-9])[A-Z]|(?!^)[A-Z](?=[a-z]))')
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56
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57
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58 def camel2under(camel_string):
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59 """Converts a camelcased string to underscores. Useful for turning a
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60 class name into a function name.
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61
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62 >>> camel2under('BasicParseTest')
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63 'basic_parse_test'
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64 """
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65 return _camel2under_re.sub(r'_\1', camel_string).lower()
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66
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67
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68 def under2camel(under_string):
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69 """Converts an underscored string to camelcased. Useful for turning a
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70 function name into a class name.
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71
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72 >>> under2camel('complex_tokenizer')
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73 'ComplexTokenizer'
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74 """
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75 return ''.join(w.capitalize() or '_' for w in under_string.split('_'))
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76
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77
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78 def slugify(text, delim='_', lower=True, ascii=False):
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79 """
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80 A basic function that turns text full of scary characters
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81 (i.e., punctuation and whitespace), into a relatively safe
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82 lowercased string separated only by the delimiter specified
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83 by *delim*, which defaults to ``_``.
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84
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85 The *ascii* convenience flag will :func:`asciify` the slug if
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86 you require ascii-only slugs.
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87
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88 >>> slugify('First post! Hi!!!!~1 ')
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89 'first_post_hi_1'
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90
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91 >>> slugify("Kurt Gödel's pretty cool.", ascii=True) == \
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92 b'kurt_goedel_s_pretty_cool'
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93 True
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94
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95 """
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96 ret = delim.join(split_punct_ws(text)) or delim if text else ''
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97 if ascii:
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98 ret = asciify(ret)
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99 if lower:
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100 ret = ret.lower()
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101 return ret
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102
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103
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104 def split_punct_ws(text):
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105 """While :meth:`str.split` will split on whitespace,
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106 :func:`split_punct_ws` will split on punctuation and
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107 whitespace. This used internally by :func:`slugify`, above.
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108
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109 >>> split_punct_ws('First post! Hi!!!!~1 ')
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110 ['First', 'post', 'Hi', '1']
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111 """
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112 return [w for w in _punct_re.split(text) if w]
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113
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114
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115 def unit_len(sized_iterable, unit_noun='item'): # TODO: len_units()/unitize()?
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116 """Returns a plain-English description of an iterable's
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117 :func:`len()`, conditionally pluralized with :func:`cardinalize`,
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118 detailed below.
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119
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120 >>> print(unit_len(range(10), 'number'))
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121 10 numbers
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122 >>> print(unit_len('aeiou', 'vowel'))
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123 5 vowels
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124 >>> print(unit_len([], 'worry'))
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125 No worries
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126 """
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127 count = len(sized_iterable)
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128 units = cardinalize(unit_noun, count)
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129 if count:
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130 return u'%s %s' % (count, units)
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131 return u'No %s' % (units,)
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132
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133
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134 _ORDINAL_MAP = {'1': 'st',
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135 '2': 'nd',
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136 '3': 'rd'} # 'th' is the default
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137
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138
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139 def ordinalize(number, ext_only=False):
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140 """Turns *number* into its cardinal form, i.e., 1st, 2nd,
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141 3rd, 4th, etc. If the last character isn't a digit, it returns the
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142 string value unchanged.
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143
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144 Args:
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145 number (int or str): Number to be cardinalized.
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146 ext_only (bool): Whether to return only the suffix. Default ``False``.
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147
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148 >>> print(ordinalize(1))
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149 1st
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150 >>> print(ordinalize(3694839230))
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151 3694839230th
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152 >>> print(ordinalize('hi'))
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153 hi
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154 >>> print(ordinalize(1515))
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155 1515th
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156 """
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157 numstr, ext = unicode(number), ''
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158 if numstr and numstr[-1] in string.digits:
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159 try:
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160 # first check for teens
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161 if numstr[-2] == '1':
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162 ext = 'th'
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163 else:
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164 # all other cases
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165 ext = _ORDINAL_MAP.get(numstr[-1], 'th')
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166 except IndexError:
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167 # single digit numbers (will reach here based on [-2] above)
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168 ext = _ORDINAL_MAP.get(numstr[-1], 'th')
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169 if ext_only:
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170 return ext
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171 else:
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172 return numstr + ext
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173
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174
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175 def cardinalize(unit_noun, count):
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176 """Conditionally pluralizes a singular word *unit_noun* if
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177 *count* is not one, preserving case when possible.
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178
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179 >>> vowels = 'aeiou'
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180 >>> print(len(vowels), cardinalize('vowel', len(vowels)))
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181 5 vowels
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182 >>> print(3, cardinalize('Wish', 3))
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183 3 Wishes
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184 """
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185 if count == 1:
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186 return unit_noun
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187 return pluralize(unit_noun)
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188
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189
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190 def singularize(word):
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191 """Semi-intelligently converts an English plural *word* to its
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192 singular form, preserving case pattern.
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193
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194 >>> singularize('chances')
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195 'chance'
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196 >>> singularize('Activities')
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197 'Activity'
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198 >>> singularize('Glasses')
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199 'Glass'
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200 >>> singularize('FEET')
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201 'FOOT'
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202
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203 """
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204 orig_word, word = word, word.strip().lower()
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205 if not word or word in _IRR_S2P:
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206 return orig_word
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207
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208 irr_singular = _IRR_P2S.get(word)
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209 if irr_singular:
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210 singular = irr_singular
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211 elif not word.endswith('s'):
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212 return orig_word
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213 elif len(word) == 2:
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214 singular = word[:-1] # or just return word?
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215 elif word.endswith('ies') and word[-4:-3] not in 'aeiou':
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216 singular = word[:-3] + 'y'
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217 elif word.endswith('es') and word[-3] == 's':
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218 singular = word[:-2]
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219 else:
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220 singular = word[:-1]
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221 return _match_case(orig_word, singular)
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222
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223
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224 def pluralize(word):
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225 """Semi-intelligently converts an English *word* from singular form to
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226 plural, preserving case pattern.
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227
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228 >>> pluralize('friend')
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229 'friends'
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230 >>> pluralize('enemy')
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231 'enemies'
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232 >>> pluralize('Sheep')
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233 'Sheep'
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234 """
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235 orig_word, word = word, word.strip().lower()
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236 if not word or word in _IRR_P2S:
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237 return orig_word
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238 irr_plural = _IRR_S2P.get(word)
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239 if irr_plural:
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240 plural = irr_plural
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241 elif word.endswith('y') and word[-2:-1] not in 'aeiou':
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242 plural = word[:-1] + 'ies'
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243 elif word[-1] == 's' or word.endswith('ch') or word.endswith('sh'):
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244 plural = word if word.endswith('es') else word + 'es'
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245 else:
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246 plural = word + 's'
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247 return _match_case(orig_word, plural)
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248
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249
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250 def _match_case(master, disciple):
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251 if not master.strip():
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252 return disciple
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253 if master.lower() == master:
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254 return disciple.lower()
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255 elif master.upper() == master:
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256 return disciple.upper()
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257 elif master.title() == master:
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258 return disciple.title()
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259 return disciple
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260
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261
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262 # Singular to plural map of irregular pluralizations
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263 _IRR_S2P = {'addendum': 'addenda', 'alga': 'algae', 'alumna': 'alumnae',
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264 'alumnus': 'alumni', 'analysis': 'analyses', 'antenna': 'antennae',
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265 'appendix': 'appendices', 'axis': 'axes', 'bacillus': 'bacilli',
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266 'bacterium': 'bacteria', 'basis': 'bases', 'beau': 'beaux',
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267 'bison': 'bison', 'bureau': 'bureaus', 'cactus': 'cacti',
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268 'calf': 'calves', 'child': 'children', 'corps': 'corps',
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269 'corpus': 'corpora', 'crisis': 'crises', 'criterion': 'criteria',
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270 'curriculum': 'curricula', 'datum': 'data', 'deer': 'deer',
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271 'diagnosis': 'diagnoses', 'die': 'dice', 'dwarf': 'dwarves',
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272 'echo': 'echoes', 'elf': 'elves', 'ellipsis': 'ellipses',
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273 'embargo': 'embargoes', 'emphasis': 'emphases', 'erratum': 'errata',
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274 'fireman': 'firemen', 'fish': 'fish', 'focus': 'foci',
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275 'foot': 'feet', 'formula': 'formulae', 'formula': 'formulas',
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276 'fungus': 'fungi', 'genus': 'genera', 'goose': 'geese',
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277 'half': 'halves', 'hero': 'heroes', 'hippopotamus': 'hippopotami',
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278 'hoof': 'hooves', 'hypothesis': 'hypotheses', 'index': 'indices',
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279 'knife': 'knives', 'leaf': 'leaves', 'life': 'lives',
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280 'loaf': 'loaves', 'louse': 'lice', 'man': 'men',
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281 'matrix': 'matrices', 'means': 'means', 'medium': 'media',
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282 'memorandum': 'memoranda', 'millennium': 'milennia', 'moose': 'moose',
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283 'mosquito': 'mosquitoes', 'mouse': 'mice', 'nebula': 'nebulae',
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284 'neurosis': 'neuroses', 'nucleus': 'nuclei', 'oasis': 'oases',
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285 'octopus': 'octopi', 'offspring': 'offspring', 'ovum': 'ova',
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286 'ox': 'oxen', 'paralysis': 'paralyses', 'parenthesis': 'parentheses',
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287 'person': 'people', 'phenomenon': 'phenomena', 'potato': 'potatoes',
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288 'radius': 'radii', 'scarf': 'scarves', 'scissors': 'scissors',
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289 'self': 'selves', 'sense': 'senses', 'series': 'series', 'sheep':
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290 'sheep', 'shelf': 'shelves', 'species': 'species', 'stimulus':
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291 'stimuli', 'stratum': 'strata', 'syllabus': 'syllabi', 'symposium':
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292 'symposia', 'synopsis': 'synopses', 'synthesis': 'syntheses',
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293 'tableau': 'tableaux', 'that': 'those', 'thesis': 'theses',
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294 'thief': 'thieves', 'this': 'these', 'tomato': 'tomatoes', 'tooth':
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295 'teeth', 'torpedo': 'torpedoes', 'vertebra': 'vertebrae', 'veto':
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296 'vetoes', 'vita': 'vitae', 'watch': 'watches', 'wife': 'wives',
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297 'wolf': 'wolves', 'woman': 'women'}
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298
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299
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300 # Reverse index of the above
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301 _IRR_P2S = dict([(v, k) for k, v in _IRR_S2P.items()])
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302
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303 HASHTAG_RE = re.compile(r"(?:^|\s)[##]{1}(\w+)", re.UNICODE)
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304
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305
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306 def find_hashtags(string):
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307 """Finds and returns all hashtags in a string, with the hashmark
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308 removed. Supports full-width hashmarks for Asian languages and
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309 does not false-positive on URL anchors.
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310
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311 >>> find_hashtags('#atag http://asite/#ananchor')
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312 ['atag']
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313
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314 ``find_hashtags`` also works with unicode hashtags.
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315 """
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316
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317 # the following works, doctest just struggles with it
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318 # >>> find_hashtags(u"can't get enough of that dignity chicken #肯德基 woo")
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319 # [u'\u80af\u5fb7\u57fa']
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320 return HASHTAG_RE.findall(string)
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321
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322
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323 def a10n(string):
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324 """That thing where "internationalization" becomes "i18n", what's it
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325 called? Abbreviation? Oh wait, no: ``a10n``. (It's actually a form
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326 of `numeronym`_.)
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327
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328 >>> a10n('abbreviation')
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329 'a10n'
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330 >>> a10n('internationalization')
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331 'i18n'
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332 >>> a10n('')
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333 ''
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334
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335 .. _numeronym: http://en.wikipedia.org/wiki/Numeronym
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336 """
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337 if len(string) < 3:
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338 return string
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339 return '%s%s%s' % (string[0], len(string[1:-1]), string[-1])
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340
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341
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342 # Based on https://en.wikipedia.org/wiki/ANSI_escape_code#Escape_sequences
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343 ANSI_SEQUENCES = re.compile(r'''
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344 \x1B # Sequence starts with ESC, i.e. hex 0x1B
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345 (?:
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346 [@-Z\\-_] # Second byte:
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347 # all 0x40–0x5F range but CSI char, i.e ASCII @A–Z\]^_
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348 | # Or
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349 \[ # CSI sequences, starting with [
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350 [0-?]* # Parameter bytes:
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351 # range 0x30–0x3F, ASCII 0–9:;<=>?
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352 [ -/]* # Intermediate bytes:
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353 # range 0x20–0x2F, ASCII space and !"#$%&'()*+,-./
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354 [@-~] # Final byte
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355 # range 0x40–0x7E, ASCII @A–Z[\]^_`a–z{|}~
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356 )
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357 ''', re.VERBOSE)
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358
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359
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360 def strip_ansi(text):
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361 """Strips ANSI escape codes from *text*. Useful for the occasional
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362 time when a log or redirected output accidentally captures console
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363 color codes and the like.
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364
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365 >>> strip_ansi('\x1b[0m\x1b[1;36mart\x1b[46;34m')
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366 'art'
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367
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368 Supports unicode, str, bytes and bytearray content as input. Returns the
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369 same type as the input.
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370
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371 There's a lot of ANSI art available for testing on `sixteencolors.net`_.
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372 This function does not interpret or render ANSI art, but you can do so with
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373 `ansi2img`_ or `escapes.js`_.
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374
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375 .. _sixteencolors.net: http://sixteencolors.net
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376 .. _ansi2img: http://www.bedroomlan.org/projects/ansi2img
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377 .. _escapes.js: https://github.com/atdt/escapes.js
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378 """
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379 # TODO: move to cliutils.py
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380
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381 # Transform any ASCII-like content to unicode to allow regex to match, and
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382 # save input type for later.
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383 target_type = None
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384 # Unicode type aliased to str is code-smell for Boltons in Python 3 env.
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385 is_py3 = (unicode == builtins.str)
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386 if is_py3 and isinstance(text, (bytes, bytearray)):
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387 target_type = type(text)
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388 text = text.decode('utf-8')
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389
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390 cleaned = ANSI_SEQUENCES.sub('', text)
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391
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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392 # Transform back the result to the same bytearray type provided by the user.
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393 if target_type and target_type != type(cleaned):
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394 cleaned = target_type(cleaned, 'utf-8')
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395
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396 return cleaned
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397
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398
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399 def asciify(text, ignore=False):
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400 """Converts a unicode or bytestring, *text*, into a bytestring with
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401 just ascii characters. Performs basic deaccenting for all you
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402 Europhiles out there.
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403
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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404 Also, a gentle reminder that this is a **utility**, primarily meant
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405 for slugification. Whenever possible, make your application work
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406 **with** unicode, not against it.
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407
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408 Args:
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409 text (str or unicode): The string to be asciified.
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410 ignore (bool): Configures final encoding to ignore remaining
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411 unasciified unicode instead of replacing it.
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412
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413 >>> asciify('Beyoncé') == b'Beyonce'
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414 True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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415 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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416 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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417 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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418 return text.encode('ascii')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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419 except UnicodeDecodeError:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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420 # this usually means you passed in a non-unicode string
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421 text = text.decode('utf-8')
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422 return text.encode('ascii')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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423 except UnicodeEncodeError:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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424 mode = 'replace'
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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425 if ignore:
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426 mode = 'ignore'
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427 transd = unicodedata.normalize('NFKD', text.translate(DEACCENT_MAP))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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428 ret = transd.encode('ascii', mode)
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429 return ret
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430
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431
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432 def is_ascii(text):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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433 """Check if a unicode or bytestring, *text*, is composed of ascii
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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434 characters only. Raises :exc:`ValueError` if argument is not text.
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435
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436 Args:
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437 text (str or unicode): The string to be checked.
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438
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439 >>> is_ascii('Beyoncé')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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440 False
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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441 >>> is_ascii('Beyonce')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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442 True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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443 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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444 if isinstance(text, unicode):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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445 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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446 text.encode('ascii')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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447 except UnicodeEncodeError:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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448 return False
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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449 elif isinstance(text, bytes):
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450 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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451 text.decode('ascii')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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452 except UnicodeDecodeError:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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453 return False
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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454 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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455 raise ValueError('expected text or bytes, not %r' % type(text))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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456 return True
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457
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458
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459 class DeaccenterDict(dict):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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460 "A small caching dictionary for deaccenting."
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461 def __missing__(self, key):
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462 ch = self.get(key)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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463 if ch is not None:
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464 return ch
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465 try:
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466 de = unicodedata.decomposition(unichr(key))
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467 p1, _, p2 = de.rpartition(' ')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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468 if int(p2, 16) == 0x308:
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469 ch = self.get(key)
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470 else:
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471 ch = int(p1, 16)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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472 except (IndexError, ValueError):
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473 ch = self.get(key, key)
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474 self[key] = ch
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475 return ch
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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476
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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477 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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478 from collections import defaultdict
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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479 except ImportError:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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480 # no defaultdict means that __missing__ isn't supported in
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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481 # this version of python, so we define __getitem__
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482 def __getitem__(self, key):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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483 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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484 return super(DeaccenterDict, self).__getitem__(key)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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485 except KeyError:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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486 return self.__missing__(key)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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487 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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488 del defaultdict
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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489
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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490
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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491 # http://chmullig.com/2009/12/python-unicode-ascii-ifier/
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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492 # For something more complete, investigate the unidecode
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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493 # or isounidecode packages, which are capable of performing
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494 # crude transliteration.
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495 _BASE_DEACCENT_MAP = {
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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496 0xc6: u"AE", # Æ LATIN CAPITAL LETTER AE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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497 0xd0: u"D", # Ð LATIN CAPITAL LETTER ETH
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498 0xd8: u"OE", # Ø LATIN CAPITAL LETTER O WITH STROKE
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guerler
parents:
diff changeset
499 0xde: u"Th", # Þ LATIN CAPITAL LETTER THORN
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
500 0xc4: u'Ae', # Ä LATIN CAPITAL LETTER A WITH DIAERESIS
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
501 0xd6: u'Oe', # Ö LATIN CAPITAL LETTER O WITH DIAERESIS
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
502 0xdc: u'Ue', # Ü LATIN CAPITAL LETTER U WITH DIAERESIS
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
503 0xc0: u"A", # À LATIN CAPITAL LETTER A WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
504 0xc1: u"A", # Á LATIN CAPITAL LETTER A WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
505 0xc3: u"A", # Ã LATIN CAPITAL LETTER A WITH TILDE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
506 0xc7: u"C", # Ç LATIN CAPITAL LETTER C WITH CEDILLA
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
507 0xc8: u"E", # È LATIN CAPITAL LETTER E WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
508 0xc9: u"E", # É LATIN CAPITAL LETTER E WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
509 0xca: u"E", # Ê LATIN CAPITAL LETTER E WITH CIRCUMFLEX
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
510 0xcc: u"I", # Ì LATIN CAPITAL LETTER I WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
511 0xcd: u"I", # Í LATIN CAPITAL LETTER I WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
512 0xd2: u"O", # Ò LATIN CAPITAL LETTER O WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
513 0xd3: u"O", # Ó LATIN CAPITAL LETTER O WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
514 0xd5: u"O", # Õ LATIN CAPITAL LETTER O WITH TILDE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
515 0xd9: u"U", # Ù LATIN CAPITAL LETTER U WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
516 0xda: u"U", # Ú LATIN CAPITAL LETTER U WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
517 0xdf: u"ss", # ß LATIN SMALL LETTER SHARP S
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
518 0xe6: u"ae", # æ LATIN SMALL LETTER AE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
519 0xf0: u"d", # ð LATIN SMALL LETTER ETH
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
520 0xf8: u"oe", # ø LATIN SMALL LETTER O WITH STROKE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
521 0xfe: u"th", # þ LATIN SMALL LETTER THORN,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
522 0xe4: u'ae', # ä LATIN SMALL LETTER A WITH DIAERESIS
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
523 0xf6: u'oe', # ö LATIN SMALL LETTER O WITH DIAERESIS
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
524 0xfc: u'ue', # ü LATIN SMALL LETTER U WITH DIAERESIS
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
525 0xe0: u"a", # à LATIN SMALL LETTER A WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
526 0xe1: u"a", # á LATIN SMALL LETTER A WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
527 0xe3: u"a", # ã LATIN SMALL LETTER A WITH TILDE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
528 0xe7: u"c", # ç LATIN SMALL LETTER C WITH CEDILLA
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
529 0xe8: u"e", # è LATIN SMALL LETTER E WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
530 0xe9: u"e", # é LATIN SMALL LETTER E WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
531 0xea: u"e", # ê LATIN SMALL LETTER E WITH CIRCUMFLEX
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
532 0xec: u"i", # ì LATIN SMALL LETTER I WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
533 0xed: u"i", # í LATIN SMALL LETTER I WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
534 0xf2: u"o", # ò LATIN SMALL LETTER O WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
535 0xf3: u"o", # ó LATIN SMALL LETTER O WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
536 0xf5: u"o", # õ LATIN SMALL LETTER O WITH TILDE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
537 0xf9: u"u", # ù LATIN SMALL LETTER U WITH GRAVE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
538 0xfa: u"u", # ú LATIN SMALL LETTER U WITH ACUTE
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
539 0x2018: u"'", # ‘ LEFT SINGLE QUOTATION MARK
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
540 0x2019: u"'", # ’ RIGHT SINGLE QUOTATION MARK
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
541 0x201c: u'"', # “ LEFT DOUBLE QUOTATION MARK
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
542 0x201d: u'"', # ” RIGHT DOUBLE QUOTATION MARK
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diff changeset
543 }
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544
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545
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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546 DEACCENT_MAP = DeaccenterDict(_BASE_DEACCENT_MAP)
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547
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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548
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549 _SIZE_SYMBOLS = ('B', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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550 _SIZE_BOUNDS = [(1024 ** i, sym) for i, sym in enumerate(_SIZE_SYMBOLS)]
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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551 _SIZE_RANGES = list(zip(_SIZE_BOUNDS, _SIZE_BOUNDS[1:]))
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552
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553
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554 def bytes2human(nbytes, ndigits=0):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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555 """Turns an integer value of *nbytes* into a human readable format. Set
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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556 *ndigits* to control how many digits after the decimal point
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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557 should be shown (default ``0``).
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558
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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559 >>> bytes2human(128991)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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560 '126K'
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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561 >>> bytes2human(100001221)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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562 '95M'
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
563 >>> bytes2human(0, 2)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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564 '0.00B'
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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565 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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566 abs_bytes = abs(nbytes)
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567 for (size, symbol), (next_size, next_symbol) in _SIZE_RANGES:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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568 if abs_bytes <= next_size:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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569 break
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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570 hnbytes = float(nbytes) / size
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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571 return '{hnbytes:.{ndigits}f}{symbol}'.format(hnbytes=hnbytes,
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572 ndigits=ndigits,
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573 symbol=symbol)
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574
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575
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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576 class HTMLTextExtractor(HTMLParser):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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577 def __init__(self):
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578 self.reset()
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579 self.strict = False
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580 self.convert_charrefs = True
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581 self.result = []
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582
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583 def handle_data(self, d):
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584 self.result.append(d)
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585
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586 def handle_charref(self, number):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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587 if number[0] == u'x' or number[0] == u'X':
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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588 codepoint = int(number[1:], 16)
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589 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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590 codepoint = int(number)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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591 self.result.append(unichr(codepoint))
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592
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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593 def handle_entityref(self, name):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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594 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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595 codepoint = htmlentitydefs.name2codepoint[name]
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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596 except KeyError:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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597 self.result.append(u'&' + name + u';')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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598 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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599 self.result.append(unichr(codepoint))
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diff changeset
600
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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601 def get_text(self):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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602 return u''.join(self.result)
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603
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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604
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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605 def html2text(html):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
606 """Strips tags from HTML text, returning markup-free text. Also, does
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
607 a best effort replacement of entities like "&nbsp;"
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608
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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609 >>> r = html2text(u'<a href="#">Test &amp;<em>(\u0394&#x03b7;&#956;&#x03CE;)</em></a>')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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610 >>> r == u'Test &(\u0394\u03b7\u03bc\u03ce)'
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611 True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
612 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
613 # based on answers to http://stackoverflow.com/questions/753052/
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614 s = HTMLTextExtractor()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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615 s.feed(html)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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616 return s.get_text()
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617
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618
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619 _EMPTY_GZIP_BYTES = b'\x1f\x8b\x08\x089\xf3\xb9U\x00\x03empty\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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620 _NON_EMPTY_GZIP_BYTES = b'\x1f\x8b\x08\x08\xbc\xf7\xb9U\x00\x03not_empty\x00K\xaa,I-N\xcc\xc8\xafT\xe4\x02\x00\xf3nb\xbf\x0b\x00\x00\x00'
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diff changeset
621
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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622
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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623 def gunzip_bytes(bytestring):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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624 """The :mod:`gzip` module is great if you have a file or file-like
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
625 object, but what if you just have bytes. StringIO is one
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
626 possibility, but it's often faster, easier, and simpler to just
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
627 use this one-liner. Use this tried-and-true utility function to
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
628 decompress gzip from bytes.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
629
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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630 >>> gunzip_bytes(_EMPTY_GZIP_BYTES) == b''
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
631 True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
632 >>> gunzip_bytes(_NON_EMPTY_GZIP_BYTES).rstrip() == b'bytesahoy!'
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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633 True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
634 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
635 return zlib.decompress(bytestring, 16 + zlib.MAX_WBITS)
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parents:
diff changeset
636
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diff changeset
637
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
638 def gzip_bytes(bytestring, level=6):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
639 """Turn some bytes into some compressed bytes.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
640
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
641 >>> len(gzip_bytes(b'a' * 10000))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
642 46
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
643
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
644 Args:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
645 bytestring (bytes): Bytes to be compressed
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
646 level (int): An integer, 1-9, controlling the
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
647 speed/compression. 1 is fastest, least compressed, 9 is
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
648 slowest, but most compressed.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
649
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
650 Note that all levels of gzip are pretty fast these days, though
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
651 it's not really a competitor in compression, at any level.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
652 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
653 out = StringIO()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
654 f = GzipFile(fileobj=out, mode='wb', compresslevel=level)
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guerler
parents:
diff changeset
655 f.write(bytestring)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
656 f.close()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
657 return out.getvalue()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
658
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guerler
parents:
diff changeset
659
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parents:
diff changeset
660
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diff changeset
661 _line_ending_re = re.compile(r'(\r\n|\n|\x0b|\f|\r|\x85|\x2028|\x2029)',
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
662 re.UNICODE)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
663
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664
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665 def iter_splitlines(text):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
666 r"""Like :meth:`str.splitlines`, but returns an iterator of lines
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
667 instead of a list. Also similar to :meth:`file.next`, as that also
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
668 lazily reads and yields lines from a file.
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guerler
parents:
diff changeset
669
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parents:
diff changeset
670 This function works with a variety of line endings, but as always,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
671 be careful when mixing line endings within a file.
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guerler
parents:
diff changeset
672
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parents:
diff changeset
673 >>> list(iter_splitlines('\nhi\nbye\n'))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
674 ['', 'hi', 'bye', '']
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
675 >>> list(iter_splitlines('\r\nhi\rbye\r\n'))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
676 ['', 'hi', 'bye', '']
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
677 >>> list(iter_splitlines(''))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
678 []
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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679 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
680 prev_end, len_text = 0, len(text)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
681 # print('last: %r' % last_idx)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
682 # start, end = None, None
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
683 for match in _line_ending_re.finditer(text):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
684 start, end = match.start(1), match.end(1)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
685 # print(start, end)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
686 if prev_end <= start:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
687 yield text[prev_end:start]
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guerler
parents:
diff changeset
688 if end == len_text:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
689 yield ''
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guerler
parents:
diff changeset
690 prev_end = end
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guerler
parents:
diff changeset
691 tail = text[prev_end:]
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
692 if tail:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
693 yield tail
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
694 return
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parents:
diff changeset
695
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guerler
parents:
diff changeset
696
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
697 def indent(text, margin, newline='\n', key=bool):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
698 """The missing counterpart to the built-in :func:`textwrap.dedent`.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
699
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
700 Args:
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guerler
parents:
diff changeset
701 text (str): The text to indent.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
702 margin (str): The string to prepend to each line.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
703 newline (str): The newline used to rejoin the lines (default: ``\\n``)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
704 key (callable): Called on each line to determine whether to
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
705 indent it. Default: :class:`bool`, to ensure that empty lines do
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
706 not get whitespace added.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
707 """
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guerler
parents:
diff changeset
708 indented_lines = [(margin + line if key(line) else line)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
709 for line in iter_splitlines(text)]
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
710 return newline.join(indented_lines)
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guerler
parents:
diff changeset
711
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guerler
parents:
diff changeset
712
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guerler
parents:
diff changeset
713 def is_uuid(obj, version=4):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
714 """Check the argument is either a valid UUID object or string.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
715
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
716 Args:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
717 obj (object): The test target. Strings and UUID objects supported.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
718 version (int): The target UUID version, set to 0 to skip version check.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
719
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
720 >>> is_uuid('e682ccca-5a4c-4ef2-9711-73f9ad1e15ea')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
721 True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
722 >>> is_uuid('0221f0d9-d4b9-11e5-a478-10ddb1c2feb9')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
723 False
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
724 >>> is_uuid('0221f0d9-d4b9-11e5-a478-10ddb1c2feb9', version=1)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
725 True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
726 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
727 if not isinstance(obj, uuid.UUID):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
728 try:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
729 obj = uuid.UUID(obj)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
730 except (TypeError, ValueError, AttributeError):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
731 return False
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
732 if version and obj.version != int(version):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
733 return False
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
734 return True
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
735
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
736
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
737 def escape_shell_args(args, sep=' ', style=None):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
738 """Returns an escaped version of each string in *args*, according to
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
739 *style*.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
740
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
741 Args:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
742 args (list): A list of arguments to escape and join together
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
743 sep (str): The separator used to join the escaped arguments.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
744 style (str): The style of escaping to use. Can be one of
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
745 ``cmd`` or ``sh``, geared toward Windows and Linux/BSD/etc.,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
746 respectively. If *style* is ``None``, then it is picked
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
747 according to the system platform.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
748
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
749 See :func:`args2cmd` and :func:`args2sh` for details and example
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
750 output for each style.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
751 """
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
752 if not style:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
753 style = 'cmd' if sys.platform == 'win32' else 'sh'
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guerler
parents:
diff changeset
754
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
755 if style == 'sh':
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
756 return args2sh(args, sep=sep)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
757 elif style == 'cmd':
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
758 return args2cmd(args, sep=sep)
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guerler
parents:
diff changeset
759
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
760 raise ValueError("style expected one of 'cmd' or 'sh', not %r" % style)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
761
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
762
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
763 _find_sh_unsafe = re.compile(r'[^a-zA-Z0-9_@%+=:,./-]').search
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
764
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
765
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diff changeset
766 def args2sh(args, sep=' '):
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diff changeset
767 """Return a shell-escaped string version of *args*, separated by
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
768 *sep*, based on the rules of sh, bash, and other shells in the
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
769 Linux/BSD/MacOS ecosystem.
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diff changeset
770
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parents:
diff changeset
771 >>> print(args2sh(['aa', '[bb]', "cc'cc", 'dd"dd']))
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parents:
diff changeset
772 aa '[bb]' 'cc'"'"'cc' 'dd"dd'
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diff changeset
773
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774 As you can see, arguments with no special characters are not
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diff changeset
775 escaped, arguments with special characters are quoted with single
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diff changeset
776 quotes, and single quotes themselves are quoted with double
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diff changeset
777 quotes. Double quotes are handled like any other special
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
778 character.
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diff changeset
779
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diff changeset
780 Based on code from the :mod:`pipes`/:mod:`shlex` modules. Also
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diff changeset
781 note that :mod:`shlex` and :mod:`argparse` have functions to split
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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782 and parse strings escaped in this manner.
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diff changeset
783 """
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diff changeset
784 ret_list = []
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785
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diff changeset
786 for arg in args:
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diff changeset
787 if not arg:
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diff changeset
788 ret_list.append("''")
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diff changeset
789 continue
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diff changeset
790 if _find_sh_unsafe(arg) is None:
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diff changeset
791 ret_list.append(arg)
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diff changeset
792 continue
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diff changeset
793 # use single quotes, and put single quotes into double quotes
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parents:
diff changeset
794 # the string $'b is then quoted as '$'"'"'b'
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diff changeset
795 ret_list.append("'" + arg.replace("'", "'\"'\"'") + "'")
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diff changeset
796
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diff changeset
797 return ' '.join(ret_list)
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diff changeset
798
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diff changeset
799
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diff changeset
800 def args2cmd(args, sep=' '):
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parents:
diff changeset
801 r"""Return a shell-escaped string version of *args*, separated by
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parents:
diff changeset
802 *sep*, using the same rules as the Microsoft C runtime.
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parents:
diff changeset
803
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diff changeset
804 >>> print(args2cmd(['aa', '[bb]', "cc'cc", 'dd"dd']))
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parents:
diff changeset
805 aa [bb] cc'cc dd\"dd
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diff changeset
806
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807 As you can see, escaping is through backslashing and not quoting,
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parents:
diff changeset
808 and double quotes are the only special character. See the comment
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parents:
diff changeset
809 in the code for more details. Based on internal code from the
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
810 :mod:`subprocess` module.
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diff changeset
811
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diff changeset
812 """
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diff changeset
813 # technique description from subprocess below
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diff changeset
814 """
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parents:
diff changeset
815 1) Arguments are delimited by white space, which is either a
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
816 space or a tab.
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diff changeset
817
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818 2) A string surrounded by double quotation marks is
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
819 interpreted as a single argument, regardless of white space
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
820 contained within. A quoted string can be embedded in an
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
821 argument.
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diff changeset
822
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diff changeset
823 3) A double quotation mark preceded by a backslash is
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parents:
diff changeset
824 interpreted as a literal double quotation mark.
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diff changeset
825
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diff changeset
826 4) Backslashes are interpreted literally, unless they
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parents:
diff changeset
827 immediately precede a double quotation mark.
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diff changeset
828
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diff changeset
829 5) If backslashes immediately precede a double quotation mark,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
830 every pair of backslashes is interpreted as a literal
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
831 backslash. If the number of backslashes is odd, the last
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
832 backslash escapes the next double quotation mark as
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
833 described in rule 3.
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diff changeset
834
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
835 See http://msdn.microsoft.com/en-us/library/17w5ykft.aspx
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
836 or search http://msdn.microsoft.com for
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
837 "Parsing C++ Command-Line Arguments"
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diff changeset
838 """
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diff changeset
839 result = []
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diff changeset
840 needquote = False
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diff changeset
841 for arg in args:
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diff changeset
842 bs_buf = []
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diff changeset
843
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diff changeset
844 # Add a space to separate this argument from the others
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
845 if result:
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diff changeset
846 result.append(' ')
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parents:
diff changeset
847
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
848 needquote = (" " in arg) or ("\t" in arg) or not arg
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diff changeset
849 if needquote:
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diff changeset
850 result.append('"')
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parents:
diff changeset
851
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diff changeset
852 for c in arg:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
853 if c == '\\':
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
854 # Don't know if we need to double yet.
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diff changeset
855 bs_buf.append(c)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
856 elif c == '"':
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
857 # Double backslashes.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
858 result.append('\\' * len(bs_buf)*2)
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diff changeset
859 bs_buf = []
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diff changeset
860 result.append('\\"')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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861 else:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
862 # Normal char
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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863 if bs_buf:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
864 result.extend(bs_buf)
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diff changeset
865 bs_buf = []
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diff changeset
866 result.append(c)
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diff changeset
867
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
868 # Add remaining backslashes, if any.
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parents:
diff changeset
869 if bs_buf:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
870 result.extend(bs_buf)
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diff changeset
871
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diff changeset
872 if needquote:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
873 result.extend(bs_buf)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
874 result.append('"')
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parents:
diff changeset
875
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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876 return ''.join(result)
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parents:
diff changeset
877
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878
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diff changeset
879 def parse_int_list(range_string, delim=',', range_delim='-'):
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diff changeset
880 """Returns a sorted list of positive integers based on
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
881 *range_string*. Reverse of :func:`format_int_list`.
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parents:
diff changeset
882
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diff changeset
883 Args:
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diff changeset
884 range_string (str): String of comma separated positive
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diff changeset
885 integers or ranges (e.g. '1,2,4-6,8'). Typical of a custom
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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886 page range string used in printer dialogs.
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diff changeset
887 delim (char): Defaults to ','. Separates integers and
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
888 contiguous ranges of integers.
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diff changeset
889 range_delim (char): Defaults to '-'. Indicates a contiguous
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
890 range of integers.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
891
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
892 >>> parse_int_list('1,3,5-8,10-11,15')
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
893 [1, 3, 5, 6, 7, 8, 10, 11, 15]
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guerler
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diff changeset
894
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diff changeset
895 """
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diff changeset
896 output = []
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diff changeset
897
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guerler
parents:
diff changeset
898 for x in range_string.strip().split(delim):
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parents:
diff changeset
899
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parents:
diff changeset
900 # Range
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parents:
diff changeset
901 if range_delim in x:
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parents:
diff changeset
902 range_limits = list(map(int, x.split(range_delim)))
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
903 output += list(range(min(range_limits), max(range_limits)+1))
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parents:
diff changeset
904
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parents:
diff changeset
905 # Empty String
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parents:
diff changeset
906 elif not x:
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parents:
diff changeset
907 continue
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parents:
diff changeset
908
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parents:
diff changeset
909 # Integer
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parents:
diff changeset
910 else:
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parents:
diff changeset
911 output.append(int(x))
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parents:
diff changeset
912
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parents:
diff changeset
913 return sorted(output)
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parents:
diff changeset
914
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parents:
diff changeset
915
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parents:
diff changeset
916 def format_int_list(int_list, delim=',', range_delim='-', delim_space=False):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
917 """Returns a sorted range string from a list of positive integers
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
918 (*int_list*). Contiguous ranges of integers are collapsed to min
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
919 and max values. Reverse of :func:`parse_int_list`.
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parents:
diff changeset
920
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parents:
diff changeset
921 Args:
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parents:
diff changeset
922 int_list (list): List of positive integers to be converted
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
923 into a range string (e.g. [1,2,4,5,6,8]).
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parents:
diff changeset
924 delim (char): Defaults to ','. Separates integers and
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parents:
diff changeset
925 contiguous ranges of integers.
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parents:
diff changeset
926 range_delim (char): Defaults to '-'. Indicates a contiguous
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
927 range of integers.
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parents:
diff changeset
928 delim_space (bool): Defaults to ``False``. If ``True``, adds a
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parents:
diff changeset
929 space after all *delim* characters.
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parents:
diff changeset
930
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parents:
diff changeset
931 >>> format_int_list([1,3,5,6,7,8,10,11,15])
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
932 '1,3,5-8,10-11,15'
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guerler
parents:
diff changeset
933
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parents:
diff changeset
934 """
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parents:
diff changeset
935 output = []
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parents:
diff changeset
936 contig_range = collections.deque()
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parents:
diff changeset
937
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parents:
diff changeset
938 for x in sorted(int_list):
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parents:
diff changeset
939
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parents:
diff changeset
940 # Handle current (and first) value.
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parents:
diff changeset
941 if len(contig_range) < 1:
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parents:
diff changeset
942 contig_range.append(x)
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parents:
diff changeset
943
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parents:
diff changeset
944 # Handle current value, given multiple previous values are contiguous.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
945 elif len(contig_range) > 1:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
946 delta = x - contig_range[-1]
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parents:
diff changeset
947
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parents:
diff changeset
948 # Current value is contiguous.
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parents:
diff changeset
949 if delta == 1:
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parents:
diff changeset
950 contig_range.append(x)
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parents:
diff changeset
951
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
952 # Current value is non-contiguous.
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parents:
diff changeset
953 elif delta > 1:
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parents:
diff changeset
954 range_substr = '{0:d}{1}{2:d}'.format(min(contig_range),
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parents:
diff changeset
955 range_delim,
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parents:
diff changeset
956 max(contig_range))
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parents:
diff changeset
957 output.append(range_substr)
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parents:
diff changeset
958 contig_range.clear()
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parents:
diff changeset
959 contig_range.append(x)
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parents:
diff changeset
960
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parents:
diff changeset
961 # Current value repeated.
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diff changeset
962 else:
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diff changeset
963 continue
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parents:
diff changeset
964
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parents:
diff changeset
965 # Handle current value, given no previous contiguous integers
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parents:
diff changeset
966 else:
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diff changeset
967 delta = x - contig_range[0]
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parents:
diff changeset
968
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parents:
diff changeset
969 # Current value is contiguous.
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parents:
diff changeset
970 if delta == 1:
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parents:
diff changeset
971 contig_range.append(x)
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parents:
diff changeset
972
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parents:
diff changeset
973 # Current value is non-contiguous.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
974 elif delta > 1:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
975 output.append('{0:d}'.format(contig_range.popleft()))
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diff changeset
976 contig_range.append(x)
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diff changeset
977
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
978 # Current value repeated.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
979 else:
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diff changeset
980 continue
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parents:
diff changeset
981
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parents:
diff changeset
982 # Handle the last value.
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parents:
diff changeset
983 else:
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parents:
diff changeset
984
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
985 # Last value is non-contiguous.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
986 if len(contig_range) == 1:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
987 output.append('{0:d}'.format(contig_range.popleft()))
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guerler
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diff changeset
988 contig_range.clear()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
989
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
990 # Last value is part of contiguous range.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
991 elif len(contig_range) > 1:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
992 range_substr = '{0:d}{1}{2:d}'.format(min(contig_range),
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
993 range_delim,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
994 max(contig_range))
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parents:
diff changeset
995 output.append(range_substr)
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guerler
parents:
diff changeset
996 contig_range.clear()
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parents:
diff changeset
997
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parents:
diff changeset
998 if delim_space:
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
999 output_str = (delim+' ').join(output)
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parents:
diff changeset
1000 else:
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diff changeset
1001 output_str = delim.join(output)
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parents:
diff changeset
1002
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parents:
diff changeset
1003 return output_str
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guerler
parents:
diff changeset
1004
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1005
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1006 def complement_int_list(
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1007 range_string, range_start=0, range_end=None,
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1008 delim=',', range_delim='-'):
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1009 """ Returns range string that is the complement of the one provided as
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1010 *range_string* parameter.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1011
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diff changeset
1012 These range strings are of the kind produce by :func:`format_int_list`, and
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1013 parseable by :func:`parse_int_list`.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1014
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1015 Args:
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diff changeset
1016 range_string (str): String of comma separated positive integers or
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1017 ranges (e.g. '1,2,4-6,8'). Typical of a custom page range string
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1018 used in printer dialogs.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1019 range_start (int): A positive integer from which to start the resulting
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1020 range. Value is inclusive. Defaults to ``0``.
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diff changeset
1021 range_end (int): A positive integer from which the produced range is
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1022 stopped. Value is exclusive. Defaults to the maximum value found in
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1023 the provided ``range_string``.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1024 delim (char): Defaults to ','. Separates integers and contiguous ranges
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1025 of integers.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1026 range_delim (char): Defaults to '-'. Indicates a contiguous range of
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1027 integers.
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
1028
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parents:
diff changeset
1029 >>> complement_int_list('1,3,5-8,10-11,15')
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guerler
parents:
diff changeset
1030 '0,2,4,9,12-14'
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parents:
diff changeset
1031
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diff changeset
1032 >>> complement_int_list('1,3,5-8,10-11,15', range_start=0)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1033 '0,2,4,9,12-14'
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parents:
diff changeset
1034
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diff changeset
1035 >>> complement_int_list('1,3,5-8,10-11,15', range_start=1)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1036 '2,4,9,12-14'
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parents:
diff changeset
1037
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diff changeset
1038 >>> complement_int_list('1,3,5-8,10-11,15', range_start=2)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1039 '2,4,9,12-14'
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parents:
diff changeset
1040
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diff changeset
1041 >>> complement_int_list('1,3,5-8,10-11,15', range_start=3)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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parents:
diff changeset
1042 '4,9,12-14'
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parents:
diff changeset
1043
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diff changeset
1044 >>> complement_int_list('1,3,5-8,10-11,15', range_end=15)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1045 '0,2,4,9,12-14'
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parents:
diff changeset
1046
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diff changeset
1047 >>> complement_int_list('1,3,5-8,10-11,15', range_end=14)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1048 '0,2,4,9,12-13'
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parents:
diff changeset
1049
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diff changeset
1050 >>> complement_int_list('1,3,5-8,10-11,15', range_end=13)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1051 '0,2,4,9,12'
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diff changeset
1052
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1053 >>> complement_int_list('1,3,5-8,10-11,15', range_end=20)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1054 '0,2,4,9,12-14,16-19'
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parents:
diff changeset
1055
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diff changeset
1056 >>> complement_int_list('1,3,5-8,10-11,15', range_end=0)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1057 ''
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diff changeset
1058
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1059 >>> complement_int_list('1,3,5-8,10-11,15', range_start=-1)
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1060 '0,2,4,9,12-14'
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diff changeset
1061
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1062 >>> complement_int_list('1,3,5-8,10-11,15', range_end=-1)
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diff changeset
1063 ''
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diff changeset
1064
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1065 >>> complement_int_list('1,3,5-8', range_start=1, range_end=1)
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parents:
diff changeset
1066 ''
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diff changeset
1067
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1068 >>> complement_int_list('1,3,5-8', range_start=2, range_end=2)
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1069 ''
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1070
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1071 >>> complement_int_list('1,3,5-8', range_start=2, range_end=3)
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1072 '2'
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1073
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1074 >>> complement_int_list('1,3,5-8', range_start=-10, range_end=-5)
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diff changeset
1075 ''
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diff changeset
1076
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1077 >>> complement_int_list('1,3,5-8', range_start=20, range_end=10)
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diff changeset
1078 ''
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diff changeset
1079
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1080 >>> complement_int_list('')
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diff changeset
1081 ''
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1082 """
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1083 int_list = set(parse_int_list(range_string, delim, range_delim))
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1084 if range_end is None:
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diff changeset
1085 if int_list:
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diff changeset
1086 range_end = max(int_list) + 1
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1087 else:
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1088 range_end = range_start
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diff changeset
1089 complement_values = set(
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diff changeset
1090 range(range_end)) - int_list - set(range(range_start))
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diff changeset
1091 return format_int_list(complement_values, delim, range_delim)
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diff changeset
1092
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diff changeset
1093
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diff changeset
1094 def int_ranges_from_int_list(range_string, delim=',', range_delim='-'):
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1095 """ Transform a string of ranges (*range_string*) into a tuple of tuples.
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1096
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1097 Args:
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1098 range_string (str): String of comma separated positive integers or
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1099 ranges (e.g. '1,2,4-6,8'). Typical of a custom page range string
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1100 used in printer dialogs.
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1101 delim (char): Defaults to ','. Separates integers and contiguous ranges
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1102 of integers.
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1103 range_delim (char): Defaults to '-'. Indicates a contiguous range of
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diff changeset
1104 integers.
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1105
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1106 >>> int_ranges_from_int_list('1,3,5-8,10-11,15')
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1107 ((1, 1), (3, 3), (5, 8), (10, 11), (15, 15))
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1108
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1109 >>> int_ranges_from_int_list('1')
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diff changeset
1110 ((1, 1),)
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1111
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1112 >>> int_ranges_from_int_list('')
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1113 ()
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1114 """
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1115 int_tuples = []
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1116 # Normalize the range string to our internal format for processing.
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1117 range_string = format_int_list(
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diff changeset
1118 parse_int_list(range_string, delim, range_delim))
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1119 if range_string:
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1120 for bounds in range_string.split(','):
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1121 if '-' in bounds:
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1122 start, end = bounds.split('-')
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1123 else:
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1124 start, end = bounds, bounds
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1125 int_tuples.append((int(start), int(end)))
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1126 return tuple(int_tuples)
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1127
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1128
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1129 class MultiReplace(object):
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1130 """
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1131 MultiReplace is a tool for doing multiple find/replace actions in one pass.
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1132
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1133 Given a mapping of values to be replaced it allows for all of the matching
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1134 values to be replaced in a single pass which can save a lot of performance
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1135 on very large strings. In addition to simple replace, it also allows for
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1136 replacing based on regular expressions.
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1137
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1138 Keyword Arguments:
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1139
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1140 :type regex: bool
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1141 :param regex: Treat search keys as regular expressions [Default: False]
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1142 :type flags: int
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1143 :param flags: flags to pass to the regex engine during compile
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1144
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1145 Dictionary Usage::
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1146
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1147 from lrmslib import stringutils
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1148 s = stringutils.MultiReplace({
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1149 'foo': 'zoo',
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1150 'cat': 'hat',
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1151 'bat': 'kraken'
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1152 })
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diff changeset
1153 new = s.sub('The foo bar cat ate a bat')
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diff changeset
1154 new == 'The zoo bar hat ate a kraken'
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diff changeset
1155
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diff changeset
1156 Iterable Usage::
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1157
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1158 from lrmslib import stringutils
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diff changeset
1159 s = stringutils.MultiReplace([
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diff changeset
1160 ('foo', 'zoo'),
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diff changeset
1161 ('cat', 'hat'),
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diff changeset
1162 ('bat', 'kraken)'
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diff changeset
1163 ])
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1164 new = s.sub('The foo bar cat ate a bat')
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diff changeset
1165 new == 'The zoo bar hat ate a kraken'
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1166
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1167
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1168 The constructor can be passed a dictionary or other mapping as well as
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1169 an iterable of tuples. If given an iterable, the substitution will be run
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1170 in the order the replacement values are specified in the iterable. This is
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1171 also true if it is given an OrderedDict. If given a dictionary then the
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parents:
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1172 order will be non-deterministic::
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1173
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1174 >>> 'foo bar baz'.replace('foo', 'baz').replace('baz', 'bar')
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1175 'bar bar bar'
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1176 >>> m = MultiReplace({'foo': 'baz', 'baz': 'bar'})
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1177 >>> m.sub('foo bar baz')
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1178 'baz bar bar'
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1179
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1180 This is because the order of replacement can matter if you're inserting
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1181 something that might be replaced by a later substitution. Pay attention and
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1182 if you need to rely on order then consider using a list of tuples instead
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1183 of a dictionary.
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1184 """
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1185
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1186 def __init__(self, sub_map, **kwargs):
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1187 """Compile any regular expressions that have been passed."""
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1188 options = {
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1189 'regex': False,
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1190 'flags': 0,
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1191 }
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1192 options.update(kwargs)
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1193 self.group_map = {}
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1194 regex_values = []
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1195
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1196 if isinstance(sub_map, Mapping):
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1197 sub_map = sub_map.items()
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1198
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1199 for idx, vals in enumerate(sub_map):
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1200 group_name = 'group{0}'.format(idx)
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1201 if isinstance(vals[0], basestring):
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1202 # If we're not treating input strings like a regex, escape it
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1203 if not options['regex']:
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1204 exp = re.escape(vals[0])
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1205 else:
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1206 exp = vals[0]
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1207 else:
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1208 exp = vals[0].pattern
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1209
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1210 regex_values.append('(?P<{0}>{1})'.format(
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diff changeset
1211 group_name,
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diff changeset
1212 exp
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diff changeset
1213 ))
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1214 self.group_map[group_name] = vals[1]
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1215
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1216 self.combined_pattern = re.compile(
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1217 '|'.join(regex_values),
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1218 flags=options['flags']
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1219 )
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1220
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1221 def _get_value(self, match):
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diff changeset
1222 """Given a match object find replacement value."""
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diff changeset
1223 group_dict = match.groupdict()
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diff changeset
1224 key = [x for x in group_dict if group_dict[x]][0]
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diff changeset
1225 return self.group_map[key]
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diff changeset
1226
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1227 def sub(self, text):
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diff changeset
1228 """
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diff changeset
1229 Run substitutions on the input text.
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diff changeset
1230
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1231 Given an input string, run all substitutions given in the
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diff changeset
1232 constructor.
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diff changeset
1233 """
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diff changeset
1234 return self.combined_pattern.sub(self._get_value, text)
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diff changeset
1235
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diff changeset
1236
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diff changeset
1237 def multi_replace(text, sub_map, **kwargs):
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diff changeset
1238 """Shortcut function to invoke multi-replace in a single command."""
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diff changeset
1239 m = MultiReplace(sub_map, **kwargs)
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diff changeset
1240 return m.sub(text)
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diff changeset
1241
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diff changeset
1242
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diff changeset
1243 def unwrap_text(text, ending='\n\n'):
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diff changeset
1244 r"""
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diff changeset
1245 Unwrap text, the natural complement to :func:`textwrap.wrap`.
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diff changeset
1246
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diff changeset
1247 >>> text = "Short \n lines \nwrapped\nsmall.\n\nAnother\nparagraph."
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parents:
diff changeset
1248 >>> unwrap_text(text)
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diff changeset
1249 'Short lines wrapped small.\n\nAnother paragraph.'
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1250
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1251 Args:
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1252 text: A string to unwrap.
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diff changeset
1253 ending (str): The string to join all unwrapped paragraphs
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1254 by. Pass ``None`` to get the list. Defaults to '\n\n' for
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1255 compatibility with Markdown and RST.
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diff changeset
1256
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1257 """
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diff changeset
1258 all_grafs = []
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diff changeset
1259 cur_graf = []
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1260 for line in text.splitlines():
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diff changeset
1261 line = line.strip()
d30785e31577 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
1262 if line:
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diff changeset
1263 cur_graf.append(line)
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diff changeset
1264 else:
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diff changeset
1265 all_grafs.append(' '.join(cur_graf))
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parents:
diff changeset
1266 cur_graf = []
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diff changeset
1267 if cur_graf:
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parents:
diff changeset
1268 all_grafs.append(' '.join(cur_graf))
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guerler
parents:
diff changeset
1269 if ending is None:
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parents:
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1270 return all_grafs
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diff changeset
1271 return ending.join(all_grafs)