Mercurial > repos > shellac > sam_consensus_v3

annotate env/lib/python3.9/site-packages/jinja2/utils.py @ 0:4f3585e2f14b draft default tip

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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author shellac
date Mon, 22 Mar 2021 18:12:50 +0000
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1 # -*- coding: utf-8 -*-
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2 import json
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3 import os
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4 import re
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5 import warnings
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6 from collections import deque
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7 from random import choice
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8 from random import randrange
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9 from string import ascii_letters as _letters
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10 from string import digits as _digits
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11 from threading import Lock
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12
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13 from markupsafe import escape
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14 from markupsafe import Markup
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15
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16 from ._compat import abc
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17 from ._compat import string_types
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18 from ._compat import text_type
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19 from ._compat import url_quote
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20
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21 # special singleton representing missing values for the runtime
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22 missing = type("MissingType", (), {"__repr__": lambda x: "missing"})()
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23
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24 # internal code
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25 internal_code = set()
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26
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27 concat = u"".join
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28
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29 _slash_escape = "\\/" not in json.dumps("/")
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30
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31
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32 def contextfunction(f):
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33 """This decorator can be used to mark a function or method context callable.
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34 A context callable is passed the active :class:`Context` as first argument when
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35 called from the template. This is useful if a function wants to get access
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36 to the context or functions provided on the context object. For example
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37 a function that returns a sorted list of template variables the current
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38 template exports could look like this::
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39
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40 @contextfunction
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41 def get_exported_names(context):
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42 return sorted(context.exported_vars)
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43 """
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44 f.contextfunction = True
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45 return f
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46
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47
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48 def evalcontextfunction(f):
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49 """This decorator can be used to mark a function or method as an eval
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50 context callable. This is similar to the :func:`contextfunction`
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51 but instead of passing the context, an evaluation context object is
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52 passed. For more information about the eval context, see
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53 :ref:`eval-context`.
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54
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55 .. versionadded:: 2.4
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56 """
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57 f.evalcontextfunction = True
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58 return f
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59
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60
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61 def environmentfunction(f):
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62 """This decorator can be used to mark a function or method as environment
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63 callable. This decorator works exactly like the :func:`contextfunction`
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64 decorator just that the first argument is the active :class:`Environment`
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65 and not context.
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66 """
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67 f.environmentfunction = True
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68 return f
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69
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70
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71 def internalcode(f):
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72 """Marks the function as internally used"""
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73 internal_code.add(f.__code__)
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74 return f
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75
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76
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77 def is_undefined(obj):
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78 """Check if the object passed is undefined. This does nothing more than
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79 performing an instance check against :class:`Undefined` but looks nicer.
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80 This can be used for custom filters or tests that want to react to
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81 undefined variables. For example a custom default filter can look like
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82 this::
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83
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84 def default(var, default=''):
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85 if is_undefined(var):
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86 return default
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87 return var
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88 """
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89 from .runtime import Undefined
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90
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91 return isinstance(obj, Undefined)
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92
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93
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94 def consume(iterable):
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95 """Consumes an iterable without doing anything with it."""
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96 for _ in iterable:
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97 pass
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98
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99
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100 def clear_caches():
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101 """Jinja keeps internal caches for environments and lexers. These are
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102 used so that Jinja doesn't have to recreate environments and lexers all
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103 the time. Normally you don't have to care about that but if you are
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104 measuring memory consumption you may want to clean the caches.
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105 """
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106 from .environment import _spontaneous_environments
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107 from .lexer import _lexer_cache
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108
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109 _spontaneous_environments.clear()
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110 _lexer_cache.clear()
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111
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112
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113 def import_string(import_name, silent=False):
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114 """Imports an object based on a string. This is useful if you want to
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115 use import paths as endpoints or something similar. An import path can
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116 be specified either in dotted notation (``xml.sax.saxutils.escape``)
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117 or with a colon as object delimiter (``xml.sax.saxutils:escape``).
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118
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119 If the `silent` is True the return value will be `None` if the import
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120 fails.
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121
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122 :return: imported object
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123 """
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124 try:
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125 if ":" in import_name:
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126 module, obj = import_name.split(":", 1)
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127 elif "." in import_name:
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128 module, _, obj = import_name.rpartition(".")
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129 else:
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130 return __import__(import_name)
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131 return getattr(__import__(module, None, None, [obj]), obj)
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132 except (ImportError, AttributeError):
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133 if not silent:
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134 raise
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135
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136
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137 def open_if_exists(filename, mode="rb"):
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138 """Returns a file descriptor for the filename if that file exists,
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139 otherwise ``None``.
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140 """
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141 if not os.path.isfile(filename):
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142 return None
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143
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144 return open(filename, mode)
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145
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146
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147 def object_type_repr(obj):
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148 """Returns the name of the object's type. For some recognized
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149 singletons the name of the object is returned instead. (For
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150 example for `None` and `Ellipsis`).
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151 """
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152 if obj is None:
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153 return "None"
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154 elif obj is Ellipsis:
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155 return "Ellipsis"
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156
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157 cls = type(obj)
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158
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159 # __builtin__ in 2.x, builtins in 3.x
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160 if cls.__module__ in ("__builtin__", "builtins"):
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161 name = cls.__name__
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162 else:
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163 name = cls.__module__ + "." + cls.__name__
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164
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165 return "%s object" % name
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166
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167
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168 def pformat(obj, verbose=False):
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169 """Prettyprint an object. Either use the `pretty` library or the
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170 builtin `pprint`.
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171 """
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172 try:
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173 from pretty import pretty
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174
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175 return pretty(obj, verbose=verbose)
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176 except ImportError:
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177 from pprint import pformat
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178
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179 return pformat(obj)
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180
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181
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182 def urlize(text, trim_url_limit=None, rel=None, target=None):
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183 """Converts any URLs in text into clickable links. Works on http://,
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184 https:// and www. links. Links can have trailing punctuation (periods,
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185 commas, close-parens) and leading punctuation (opening parens) and
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186 it'll still do the right thing.
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187
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188 If trim_url_limit is not None, the URLs in link text will be limited
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189 to trim_url_limit characters.
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190
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191 If nofollow is True, the URLs in link text will get a rel="nofollow"
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192 attribute.
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193
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194 If target is not None, a target attribute will be added to the link.
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195 """
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196 trim_url = (
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197 lambda x, limit=trim_url_limit: limit is not None
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198 and (x[:limit] + (len(x) >= limit and "..." or ""))
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199 or x
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200 )
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201 words = re.split(r"(\s+)", text_type(escape(text)))
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202 rel_attr = rel and ' rel="%s"' % text_type(escape(rel)) or ""
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203 target_attr = target and ' target="%s"' % escape(target) or ""
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204
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205 for i, word in enumerate(words):
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206 head, middle, tail = "", word, ""
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207 match = re.match(r"^([(<]|&lt;)+", middle)
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208
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209 if match:
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210 head = match.group()
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211 middle = middle[match.end() :]
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212
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213 # Unlike lead, which is anchored to the start of the string,
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214 # need to check that the string ends with any of the characters
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215 # before trying to match all of them, to avoid backtracking.
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216 if middle.endswith((")", ">", ".", ",", "\n", "&gt;")):
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217 match = re.search(r"([)>.,\n]|&gt;)+$", middle)
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218
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219 if match:
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220 tail = match.group()
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221 middle = middle[: match.start()]
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222
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223 if middle.startswith("www.") or (
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224 "@" not in middle
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225 and not middle.startswith("http://")
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226 and not middle.startswith("https://")
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227 and len(middle) > 0
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228 and middle[0] in _letters + _digits
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229 and (
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230 middle.endswith(".org")
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231 or middle.endswith(".net")
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232 or middle.endswith(".com")
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233 )
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234 ):
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235 middle = '<a href="http://%s"%s%s>%s</a>' % (
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236 middle,
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237 rel_attr,
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238 target_attr,
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239 trim_url(middle),
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240 )
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241
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242 if middle.startswith("http://") or middle.startswith("https://"):
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243 middle = '<a href="%s"%s%s>%s</a>' % (
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244 middle,
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245 rel_attr,
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246 target_attr,
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247 trim_url(middle),
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248 )
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249
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250 if (
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251 "@" in middle
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252 and not middle.startswith("www.")
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253 and ":" not in middle
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254 and re.match(r"^\S+@\w[\w.-]*\.\w+$", middle)
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255 ):
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256 middle = '<a href="mailto:%s">%s</a>' % (middle, middle)
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257
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258 words[i] = head + middle + tail
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259
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260 return u"".join(words)
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261
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262
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263 def generate_lorem_ipsum(n=5, html=True, min=20, max=100):
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264 """Generate some lorem ipsum for the template."""
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265 from .constants import LOREM_IPSUM_WORDS
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266
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267 words = LOREM_IPSUM_WORDS.split()
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268 result = []
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269
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270 for _ in range(n):
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271 next_capitalized = True
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272 last_comma = last_fullstop = 0
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273 word = None
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274 last = None
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275 p = []
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276
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277 # each paragraph contains out of 20 to 100 words.
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278 for idx, _ in enumerate(range(randrange(min, max))):
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279 while True:
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280 word = choice(words)
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281 if word != last:
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282 last = word
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283 break
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284 if next_capitalized:
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285 word = word.capitalize()
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286 next_capitalized = False
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287 # add commas
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288 if idx - randrange(3, 8) > last_comma:
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289 last_comma = idx
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290 last_fullstop += 2
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291 word += ","
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292 # add end of sentences
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293 if idx - randrange(10, 20) > last_fullstop:
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294 last_comma = last_fullstop = idx
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295 word += "."
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296 next_capitalized = True
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297 p.append(word)
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298
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299 # ensure that the paragraph ends with a dot.
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300 p = u" ".join(p)
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301 if p.endswith(","):
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302 p = p[:-1] + "."
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303 elif not p.endswith("."):
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304 p += "."
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305 result.append(p)
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306
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307 if not html:
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308 return u"\n\n".join(result)
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309 return Markup(u"\n".join(u"<p>%s</p>" % escape(x) for x in result))
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310
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311
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312 def unicode_urlencode(obj, charset="utf-8", for_qs=False):
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313 """Quote a string for use in a URL using the given charset.
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314
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315 This function is misnamed, it is a wrapper around
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316 :func:`urllib.parse.quote`.
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317
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318 :param obj: String or bytes to quote. Other types are converted to
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319 string then encoded to bytes using the given charset.
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320 :param charset: Encode text to bytes using this charset.
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321 :param for_qs: Quote "/" and use "+" for spaces.
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322 """
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323 if not isinstance(obj, string_types):
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324 obj = text_type(obj)
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325
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326 if isinstance(obj, text_type):
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327 obj = obj.encode(charset)
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328
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329 safe = b"" if for_qs else b"/"
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330 rv = url_quote(obj, safe)
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331
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332 if not isinstance(rv, text_type):
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333 rv = rv.decode("utf-8")
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334
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335 if for_qs:
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336 rv = rv.replace("%20", "+")
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337
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338 return rv
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339
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340
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341 class LRUCache(object):
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342 """A simple LRU Cache implementation."""
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343
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344 # this is fast for small capacities (something below 1000) but doesn't
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345 # scale. But as long as it's only used as storage for templates this
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346 # won't do any harm.
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347
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348 def __init__(self, capacity):
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349 self.capacity = capacity
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350 self._mapping = {}
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351 self._queue = deque()
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352 self._postinit()
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353
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354 def _postinit(self):
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355 # alias all queue methods for faster lookup
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356 self._popleft = self._queue.popleft
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357 self._pop = self._queue.pop
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358 self._remove = self._queue.remove
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359 self._wlock = Lock()
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360 self._append = self._queue.append
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361
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362 def __getstate__(self):
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363 return {
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364 "capacity": self.capacity,
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365 "_mapping": self._mapping,
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366 "_queue": self._queue,
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367 }
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368
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369 def __setstate__(self, d):
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370 self.__dict__.update(d)
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371 self._postinit()
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372
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373 def __getnewargs__(self):
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374 return (self.capacity,)
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375
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376 def copy(self):
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377 """Return a shallow copy of the instance."""
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378 rv = self.__class__(self.capacity)
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379 rv._mapping.update(self._mapping)
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380 rv._queue.extend(self._queue)
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381 return rv
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382
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383 def get(self, key, default=None):
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384 """Return an item from the cache dict or `default`"""
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385 try:
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386 return self[key]
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
387 except KeyError:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
388 return default
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
389
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
390 def setdefault(self, key, default=None):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
391 """Set `default` if the key is not in the cache otherwise
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
392 leave unchanged. Return the value of this key.
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
393 """
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
394 try:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
395 return self[key]
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
396 except KeyError:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
397 self[key] = default
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
398 return default
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
399
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
400 def clear(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
401 """Clear the cache."""
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
402 self._wlock.acquire()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
403 try:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
404 self._mapping.clear()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
405 self._queue.clear()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
406 finally:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
407 self._wlock.release()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
408
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
409 def __contains__(self, key):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
410 """Check if a key exists in this cache."""
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
411 return key in self._mapping
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
412
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
413 def __len__(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
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parents:
diff changeset
414 """Return the current size of the cache."""
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
415 return len(self._mapping)
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
416
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
417 def __repr__(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
418 return "<%s %r>" % (self.__class__.__name__, self._mapping)
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
419
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
420 def __getitem__(self, key):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
421 """Get an item from the cache. Moves the item up so that it has the
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
422 highest priority then.
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
423
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
424 Raise a `KeyError` if it does not exist.
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
425 """
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
426 self._wlock.acquire()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
427 try:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
428 rv = self._mapping[key]
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
429 if self._queue[-1] != key:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
430 try:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
431 self._remove(key)
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
432 except ValueError:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
433 # if something removed the key from the container
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
434 # when we read, ignore the ValueError that we would
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
435 # get otherwise.
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
436 pass
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
437 self._append(key)
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
438 return rv
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
439 finally:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
440 self._wlock.release()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
441
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
442 def __setitem__(self, key, value):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
443 """Sets the value for an item. Moves the item up so that it
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
444 has the highest priority then.
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
445 """
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
446 self._wlock.acquire()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
447 try:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
448 if key in self._mapping:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
449 self._remove(key)
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
450 elif len(self._mapping) == self.capacity:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
451 del self._mapping[self._popleft()]
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
452 self._append(key)
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
453 self._mapping[key] = value
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
454 finally:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
455 self._wlock.release()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
456
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
457 def __delitem__(self, key):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
458 """Remove an item from the cache dict.
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
459 Raise a `KeyError` if it does not exist.
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
460 """
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
461 self._wlock.acquire()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
462 try:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
463 del self._mapping[key]
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
464 try:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
465 self._remove(key)
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
466 except ValueError:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
467 pass
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
468 finally:
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
469 self._wlock.release()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
470
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
471 def items(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
472 """Return a list of items."""
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
473 result = [(key, self._mapping[key]) for key in list(self._queue)]
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
474 result.reverse()
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
475 return result
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
476
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
477 def iteritems(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
478 """Iterate over all items."""
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
479 warnings.warn(
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
480 "'iteritems()' will be removed in version 3.0. Use"
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
481 " 'iter(cache.items())' instead.",
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
482 DeprecationWarning,
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
483 stacklevel=2,
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
484 )
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
485 return iter(self.items())
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
486
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
487 def values(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
488 """Return a list of all values."""
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
489 return [x[1] for x in self.items()]
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
490
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
491 def itervalue(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
492 """Iterate over all values."""
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
493 warnings.warn(
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
494 "'itervalue()' will be removed in version 3.0. Use"
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
495 " 'iter(cache.values())' instead.",
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
496 DeprecationWarning,
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
497 stacklevel=2,
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
498 )
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
499 return iter(self.values())
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
500
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
501 def itervalues(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
502 """Iterate over all values."""
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
503 warnings.warn(
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
504 "'itervalues()' will be removed in version 3.0. Use"
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
505 " 'iter(cache.values())' instead.",
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
506 DeprecationWarning,
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
507 stacklevel=2,
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
508 )
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
509 return iter(self.values())
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
510
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
511 def keys(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
512 """Return a list of all keys ordered by most recent usage."""
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
513 return list(self)
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
514
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
515 def iterkeys(self):
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
516 """Iterate over all keys in the cache dict, ordered by
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
517 the most recent usage.
4f3585e2f14b "planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff changeset
518 """
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519 warnings.warn(
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520 "'iterkeys()' will be removed in version 3.0. Use"
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521 " 'iter(cache.keys())' instead.",
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522 DeprecationWarning,
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523 stacklevel=2,
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524 )
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525 return iter(self)
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526
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527 def __iter__(self):
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528 return reversed(tuple(self._queue))
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529
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530 def __reversed__(self):
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diff changeset
531 """Iterate over the keys in the cache dict, oldest items
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diff changeset
532 coming first.
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533 """
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534 return iter(tuple(self._queue))
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535
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536 __copy__ = copy
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537
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538
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diff changeset
539 abc.MutableMapping.register(LRUCache)
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540
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541
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542 def select_autoescape(
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543 enabled_extensions=("html", "htm", "xml"),
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544 disabled_extensions=(),
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545 default_for_string=True,
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546 default=False,
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547 ):
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548 """Intelligently sets the initial value of autoescaping based on the
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549 filename of the template. This is the recommended way to configure
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550 autoescaping if you do not want to write a custom function yourself.
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diff changeset
551
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diff changeset
552 If you want to enable it for all templates created from strings or
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553 for all templates with `.html` and `.xml` extensions::
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diff changeset
554
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diff changeset
555 from jinja2 import Environment, select_autoescape
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556 env = Environment(autoescape=select_autoescape(
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557 enabled_extensions=('html', 'xml'),
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558 default_for_string=True,
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559 ))
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560
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561 Example configuration to turn it on at all times except if the template
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562 ends with `.txt`::
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563
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564 from jinja2 import Environment, select_autoescape
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565 env = Environment(autoescape=select_autoescape(
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diff changeset
566 disabled_extensions=('txt',),
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diff changeset
567 default_for_string=True,
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diff changeset
568 default=True,
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diff changeset
569 ))
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570
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571 The `enabled_extensions` is an iterable of all the extensions that
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572 autoescaping should be enabled for. Likewise `disabled_extensions` is
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573 a list of all templates it should be disabled for. If a template is
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574 loaded from a string then the default from `default_for_string` is used.
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575 If nothing matches then the initial value of autoescaping is set to the
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576 value of `default`.
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577
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diff changeset
578 For security reasons this function operates case insensitive.
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579
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580 .. versionadded:: 2.9
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581 """
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582 enabled_patterns = tuple("." + x.lstrip(".").lower() for x in enabled_extensions)
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583 disabled_patterns = tuple("." + x.lstrip(".").lower() for x in disabled_extensions)
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584
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diff changeset
585 def autoescape(template_name):
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diff changeset
586 if template_name is None:
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587 return default_for_string
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588 template_name = template_name.lower()
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589 if template_name.endswith(enabled_patterns):
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590 return True
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591 if template_name.endswith(disabled_patterns):
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592 return False
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diff changeset
593 return default
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594
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595 return autoescape
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596
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597
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598 def htmlsafe_json_dumps(obj, dumper=None, **kwargs):
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599 """Works exactly like :func:`dumps` but is safe for use in ``<script>``
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600 tags. It accepts the same arguments and returns a JSON string. Note that
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diff changeset
601 this is available in templates through the ``|tojson`` filter which will
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diff changeset
602 also mark the result as safe. Due to how this function escapes certain
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diff changeset
603 characters this is safe even if used outside of ``<script>`` tags.
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604
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605 The following characters are escaped in strings:
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606
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607 - ``<``
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608 - ``>``
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609 - ``&``
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610 - ``'``
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611
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612 This makes it safe to embed such strings in any place in HTML with the
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613 notable exception of double quoted attributes. In that case single
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614 quote your attributes or HTML escape it in addition.
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615 """
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616 if dumper is None:
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617 dumper = json.dumps
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618 rv = (
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619 dumper(obj, **kwargs)
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620 .replace(u"<", u"\\u003c")
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621 .replace(u">", u"\\u003e")
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622 .replace(u"&", u"\\u0026")
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diff changeset
623 .replace(u"'", u"\\u0027")
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624 )
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625 return Markup(rv)
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626
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627
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628 class Cycler(object):
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629 """Cycle through values by yield them one at a time, then restarting
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630 once the end is reached. Available as ``cycler`` in templates.
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631
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632 Similar to ``loop.cycle``, but can be used outside loops or across
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633 multiple loops. For example, render a list of folders and files in a
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634 list, alternating giving them "odd" and "even" classes.
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635
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636 .. code-block:: html+jinja
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637
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638 {% set row_class = cycler("odd", "even") %}
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diff changeset
639 <ul class="browser">
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640 {% for folder in folders %}
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641 <li class="folder {{ row_class.next() }}">{{ folder }}
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642 {% endfor %}
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643 {% for file in files %}
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644 <li class="file {{ row_class.next() }}">{{ file }}
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645 {% endfor %}
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646 </ul>
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647
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648 :param items: Each positional argument will be yielded in the order
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649 given for each cycle.
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650
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651 .. versionadded:: 2.1
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652 """
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653
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654 def __init__(self, *items):
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655 if not items:
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656 raise RuntimeError("at least one item has to be provided")
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657 self.items = items
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658 self.pos = 0
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659
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660 def reset(self):
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661 """Resets the current item to the first item."""
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662 self.pos = 0
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663
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664 @property
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665 def current(self):
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666 """Return the current item. Equivalent to the item that will be
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667 returned next time :meth:`next` is called.
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668 """
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669 return self.items[self.pos]
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670
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671 def next(self):
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672 """Return the current item, then advance :attr:`current` to the
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673 next item.
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674 """
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675 rv = self.current
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676 self.pos = (self.pos + 1) % len(self.items)
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677 return rv
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678
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679 __next__ = next
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680
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681
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682 class Joiner(object):
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683 """A joining helper for templates."""
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684
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685 def __init__(self, sep=u", "):
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686 self.sep = sep
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687 self.used = False
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688
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689 def __call__(self):
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690 if not self.used:
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691 self.used = True
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692 return u""
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693 return self.sep
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694
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695
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696 class Namespace(object):
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697 """A namespace object that can hold arbitrary attributes. It may be
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698 initialized from a dictionary or with keyword arguments."""
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699
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700 def __init__(*args, **kwargs): # noqa: B902
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701 self, args = args[0], args[1:]
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702 self.__attrs = dict(*args, **kwargs)
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703
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704 def __getattribute__(self, name):
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705 # __class__ is needed for the awaitable check in async mode
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706 if name in {"_Namespace__attrs", "__class__"}:
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707 return object.__getattribute__(self, name)
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708 try:
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709 return self.__attrs[name]
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710 except KeyError:
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711 raise AttributeError(name)
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712
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713 def __setitem__(self, name, value):
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714 self.__attrs[name] = value
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715
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716 def __repr__(self):
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717 return "<Namespace %r>" % self.__attrs
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718
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719
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720 # does this python version support async for in and async generators?
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721 try:
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722 exec("async def _():\n async for _ in ():\n yield _")
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723 have_async_gen = True
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724 except SyntaxError:
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725 have_async_gen = False
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726
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727
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728 def soft_unicode(s):
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729 from markupsafe import soft_unicode
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730
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731 warnings.warn(
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732 "'jinja2.utils.soft_unicode' will be removed in version 3.0."
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733 " Use 'markupsafe.soft_unicode' instead.",
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734 DeprecationWarning,
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735 stacklevel=2,
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736 )
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737 return soft_unicode(s)