annotate configmix/config.py @ 542:f71d34dda19f

Add an optional C-implementation for configmix.config.unquote and configmix.config.pathstr2path. This is currently for Python 3.5+. It is tested with Python 3.7 and Python3.8 (FreeBSD 12.2 amd64, LLVM 10.0.1). A build for the stable API ("abi3") fails because PyUnicode_New() is currently not in the stable API. Also includes are extended tests for unquote() and pathstr2path().
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 31 Dec 2021 21:24:16 +0100
parents 25b61f0a1958
children 491413368c7c
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1 # -*- coding: utf-8 -*-
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2 # :-
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3 # :Copyright: (c) 2015-2021, Franz Glasner. All rights reserved.
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4 # :License: BSD-3-Clause. See LICENSE.txt for details.
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5 # :-
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6 """The unified configuration dictionary with attribute support or
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7 variable substitution.
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9 """
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10
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11 from __future__ import division, absolute_import, print_function
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12
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14 __all__ = ["Configuration"]
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15
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16
39
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17 import warnings
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18 try:
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19 from collections import OrderedDict as ConfigurationBase
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20 except ImportError:
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21 try:
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22 from ordereddict import OrderedDict as ConfigurationBase
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23 except ImportError:
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24 ConfigurationBase = dict
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25 try:
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26 from urllib.parse import urlsplit
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27 except ImportError:
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28 from urlparse import urlsplit
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30 from .variables import lookup_varns, lookup_filter
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31 from .compat import u, uchr, n, str_and_u, PY2
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32 from .constants import REF_NAMESPACE, NONE_FILTER, EMPTY_FILTER
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33 try:
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34 from ._speedups import fast_unquote, fast_pathstr2path
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35 except ImportError:
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36 fast_unquote = None
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37 fast_pathstr2path = None
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40 _MARKER = object()
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41 _MISSING = object()
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94b5e94fae44 Make the AttributeDict "private" (-> "_AttributeDict")
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44 class _AttributeDict(ConfigurationBase):
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46 def __getattr__(self, name):
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47 try:
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48 v = self[name]
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49 except KeyError:
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50 raise AttributeError("%s has no attribute %r" % (type(self), name))
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51 else:
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52 # Wrap a dict into another dict with attribute access support
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53 if isinstance(v, dict):
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54 return _AttributeDict(v)
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55 else:
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56 return v
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59 class CoercingMethodsMixin(object):
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61 """Mixin to provide some common implementations for retrieval
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62 methods that convert return values to a fixed type (int, bool,
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63 float).
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65 Both :class:`~.Configuration` and :class:`~._JailedConfiguration` use
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66 this mixin.
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68 """
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70 def getintvarl_s(self, *path, **kwds):
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71 """Get a (possibly substituted) variable and coerce text to a
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72 number.
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74 """
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75 s = self.getvarl_s(*path, **kwds)
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76 if isinstance(s, _TEXTTYPE):
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77 return int(s, 0)
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78 else:
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79 return s
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81 def getfirstintvarl_s(self, *paths, **kwds):
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82 """Get a (possibly substituted) variable and coerce text to a
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83 number.
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84
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85 """
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86 s = self.getfirstvarl_s(*paths, **kwds)
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87 if isinstance(s, _TEXTTYPE):
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88 return int(s, 0)
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89 else:
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90 return s
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92 def getintvar_s(self, varname, default=_MARKER):
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93 """Get a (possibly substituted) variable and coerce text to a
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94 number.
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95
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96 """
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97 s = self.getvar_s(varname, default=default)
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98 if isinstance(s, _TEXTTYPE):
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99 return int(s, 0)
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100 else:
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101 return s
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102
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103 def getfirstintvar_s(self, *varnames, **kwds):
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104 """A variant of :meth:`~.getintvar_s` that returns the first found
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105 variable in the list of given variables in `varnames`.
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106
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107 """
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108 s = self.getfirstvar_s(*varnames, **kwds)
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109 if isinstance(s, _TEXTTYPE):
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110 return int(s, 0)
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111 else:
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112 return s
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113
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114 def getboolvarl_s(self, *path, **kwds):
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115 """Get a (possibly substituted) variable and convert text to a
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116 boolean
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117
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118 """
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119 s = self.getvarl_s(*path, **kwds)
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120 if isinstance(s, _TEXTTYPE):
412
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121 sl = s.strip().lower()
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122 if sl not in self._BOOL_CVT:
450
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123 raise ValueError("Not a boolean: %r" % (s, ))
412
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124 return self._BOOL_CVT[sl]
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125 else:
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126 return s
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127
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128 def getfirstboolvarl_s(self, *paths, **kwds):
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129 """Get a (possibly substituted) variable and convert text to a
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130 boolean
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131
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132 """
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133 s = self.getfirstvarl_s(*paths, **kwds)
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134 if isinstance(s, _TEXTTYPE):
412
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135 sl = s.strip().lower()
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136 if sl not in self._BOOL_CVT:
450
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137 raise ValueError("Not a boolean: %r" % (s, ))
412
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138 return self._BOOL_CVT[sl]
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139 else:
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140 return s
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141
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142 def getboolvar_s(self, varname, default=_MARKER):
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143 """Get a (possibly substituted) variable and convert text to a
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144 boolean
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145
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146 """
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147 s = self.getvar_s(varname, default=default)
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148 if isinstance(s, _TEXTTYPE):
412
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149 sl = s.strip().lower()
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150 if sl not in self._BOOL_CVT:
450
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151 raise ValueError("Not a boolean: %r" % (s, ))
412
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152 return self._BOOL_CVT[sl]
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153 else:
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154 return s
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155
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156 def getfirstboolvar_s(self, *varnames, **kwds):
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157 """A variant of :meth:`~.getboolvar_s` that returns the first found
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diff changeset
158 variable in the list of given variables in `varnames`.
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159
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160 """
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161 s = self.getfirstvar_s(*varnames, **kwds)
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162 if isinstance(s, _TEXTTYPE):
412
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163 sl = s.strip().lower()
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164 if sl not in self._BOOL_CVT:
450
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165 raise ValueError("Not a boolean: %r" % (s, ))
412
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166 return self._BOOL_CVT[sl]
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167 else:
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168 return s
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169
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170 # Conversion of booleans
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diff changeset
171 _BOOL_CVT = {
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172 u('1'): True, u('yes'): True, u('true'): True, u('on'): True,
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173 u('0'): False, u('no'): False, u('false'): False, u('off'): False
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174 }
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175
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176 def getfloatvarl_s(self, *path, **kwds):
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177 """Get a (possibly substituted) variable and convert text to a
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178 float
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179
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180 """
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181 s = self.getvarl_s(*path, **kwds)
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182 if isinstance(s, _TEXTTYPE):
412
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183 return float(s)
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184 else:
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185 return s
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186
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187 def getfirstfloatvarl_s(self, *path, **kwds):
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188 """Get a (possibly substituted) variable and convert text to a
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189 float
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190
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191 """
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192 s = self.getfirstvarl_s(*path, **kwds)
495
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193 if isinstance(s, _TEXTTYPE):
412
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194 return float(s)
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195 else:
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196 return s
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197
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198 def getfloatvar_s(self, varname, default=_MARKER):
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199 """Get a (possibly substituted) variable and convert text to a
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diff changeset
200 float
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diff changeset
201
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202 """
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diff changeset
203 s = self.getvar_s(varname, default)
495
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204 if isinstance(s, _TEXTTYPE):
412
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205 return float(s)
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206 else:
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207 return s
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208
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209 def getfirstfloatvar_s(self, varname, default=_MARKER):
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210 """Get a (possibly substituted) variable and convert text to a
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diff changeset
211 float
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diff changeset
212
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213 """
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diff changeset
214 s = self.getfirstvar_s(varname, default)
495
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215 if isinstance(s, _TEXTTYPE):
412
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diff changeset
216 return float(s)
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217 else:
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diff changeset
218 return s
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219
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220
495
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221 # Speed
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222 _EMPTY_STR = u("")
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223 _TEXTTYPE = type(_EMPTY_STR)
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224 _STARTTOK = u(b"{{")
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225 _ENDTOK = u(b"}}")
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226 _HIER_SEPARATOR = u(b'.')
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227 _NS_SEPARATOR = u(b':')
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228 _FILTER_SEPARATOR = u(b'|')
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diff changeset
229 _STARTTOK_REF = _STARTTOK + REF_NAMESPACE + _NS_SEPARATOR
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diff changeset
230 _ENDTOK_REF = _ENDTOK
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diff changeset
231 _DOT = u(b'.')
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diff changeset
232 _QUOTE = u(b'%')
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233 _QUOTE_x = u(b'x')
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diff changeset
234 _QUOTE_u = u(b'u')
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diff changeset
235 _QUOTE_U = u(b'U')
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diff changeset
236 _COMMENT = u(b'#')
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diff changeset
237 _QUOTE_MAP = {
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diff changeset
238 0x25: u(b'%x25'), # _QUOTE
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diff changeset
239 0x2e: u(b'%x2e'), # _DOT
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diff changeset
240 0x3a: u(b'%x3a'), # _NS_SEPARATOR
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diff changeset
241 0x23: u(b'%x23'), # _COMMENT / anchor
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diff changeset
242 0x7c: u(b'%x7c'), # _FILTER_SEPARATOR
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243 0x22: u(b'%x22'),
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244 0x27: u(b'%x27'),
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diff changeset
245 0x7b: u(b'%x7b'),
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246 0x7d: u(b'%x7d'),
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247 0x5b: u(b'%x5b'),
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248 0x5d: u(b'%x5d'),
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diff changeset
249 }
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250 _QUOTE_SAFE = u(b'abcdefghijklmnopqrstuvwxyz'
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251 b'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
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252 b'0123456789'
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253 b'-_@!$&/\\()=?*+~;,<>^')
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254 """Mostly used configuration key characters that do not need any quoting
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255
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256 """
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257
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diff changeset
258
502
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259 def quote(s):
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260 """Replace important special characters in string `s` by replacing
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diff changeset
261 them with ``%xNN`` where `NN` are the two hexadecimal digits of the
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diff changeset
262 characters unicode codepoint value.
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diff changeset
263
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264 Handled are the important special chars: ``%``, ``.``, ``:``,
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265 ``#``; ``'``, ``"``, ``|``, ``{``, ``}``, ``[`` and ``]``.
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266
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diff changeset
267 See also the :ref:`quoting` section.
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268
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269 """
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270 # Quick check whether all of the chars are in _QUOTE_SAFE
504
4dbc16ff2670 .lstrip() seems to be a little bit faster than .rstrip() when testing whether quoting is needed
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diff changeset
271 if not s.lstrip(_QUOTE_SAFE):
502
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272 return s
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273
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274 # Slow path
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275 re_encode = False
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276 if PY2:
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277 # Use the Unicode translation variant in PY2
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diff changeset
278 if isinstance(s, str):
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diff changeset
279 s = s.decode("latin1")
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280 re_encode = True
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281 s = s.translate(_QUOTE_MAP)
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282 if re_encode:
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283 return s.encode("latin1")
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diff changeset
284 else:
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285 return s
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diff changeset
286
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287
542
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288 def py_unquote(s):
502
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289 """Unquote the content of `s`: handle all patterns ``%xNN``,
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diff changeset
290 ``%uNNNN`` or ``%UNNNNNNNN``.
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291
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292 This is the inverse of :func:`.quote`.
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293
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294 """
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295 if _QUOTE not in s:
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296 return s
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diff changeset
297 parts = s.split(_QUOTE)
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diff changeset
298 res = [parts[0]]
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diff changeset
299 res_append = res.append
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diff changeset
300 for p in parts[1:]:
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diff changeset
301 try:
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diff changeset
302 qc = p[0]
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diff changeset
303 except IndexError:
4f90e1eb7af8 Make quote() and unquote() module globals and also export from configmix
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304 raise ValueError("unknown quote syntax string: {}".format(s))
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diff changeset
305 if qc == _QUOTE_x:
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diff changeset
306 if len(p) < 3:
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diff changeset
307 raise ValueError("quote syntax: length too small")
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diff changeset
308 res_append(uchr(int(p[1:3], 16)))
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diff changeset
309 res_append(p[3:])
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diff changeset
310 elif qc == _QUOTE_u:
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diff changeset
311 if len(p) < 5:
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diff changeset
312 raise ValueError("quote syntax: length too small")
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diff changeset
313 res_append(uchr(int(p[1:5], 16)))
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diff changeset
314 res_append(p[5:])
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diff changeset
315 elif qc == _QUOTE_U:
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diff changeset
316 if len(p) < 9:
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diff changeset
317 raise ValueError("quote syntax: length too small")
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diff changeset
318 res_append(uchr(int(p[1:9], 16)))
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diff changeset
319 res_append(p[9:])
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diff changeset
320 else:
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diff changeset
321 raise ValueError("unknown quote syntax string: {}".format(s))
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diff changeset
322 return _EMPTY_STR.join(res)
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diff changeset
323
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diff changeset
324
542
f71d34dda19f Add an optional C-implementation for configmix.config.unquote and configmix.config.pathstr2path.
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diff changeset
325 if fast_unquote:
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diff changeset
326 unquote = fast_unquote
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diff changeset
327 else:
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diff changeset
328 unquote = py_unquote
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diff changeset
329
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diff changeset
330
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diff changeset
331 def py_pathstr2path(varname):
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
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parents: 531
diff changeset
332 """Parse a dot-separated path string `varname` into a tuple of
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parents: 531
diff changeset
333 unquoted path items
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parents: 531
diff changeset
334
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diff changeset
335 :param str varname: The quoted and dot-separated path string
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diff changeset
336 :return: The unquoted and parsed path items
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diff changeset
337 :rtype: tuple
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338
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diff changeset
339 Used e.g. by :meth:`~.Configuration.getvar`,
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diff changeset
340 :meth:`~.Configuration.getvar_s` and :meth:`~.Configuration.jailed`.
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diff changeset
341
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diff changeset
342 The returned value is suitable as input for
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diff changeset
343 :meth:`~.Configuration.getvarl`, :meth:`~.Configuration.getvarl_s` and
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diff changeset
344 friends.
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345
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346 An empty `varname` returns an empty tuple.
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diff changeset
347
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diff changeset
348 """
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349 #
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diff changeset
350 # Because str.split yields a non-empty list for an empty string handle
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diff changeset
351 # the empty string separately.
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diff changeset
352 #
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diff changeset
353 if varname:
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354 return tuple([unquote(p) for p in varname.split(_HIER_SEPARATOR)])
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diff changeset
355 else:
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diff changeset
356 return tuple()
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diff changeset
357
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diff changeset
358
542
f71d34dda19f Add an optional C-implementation for configmix.config.unquote and configmix.config.pathstr2path.
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diff changeset
359 if fast_pathstr2path:
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diff changeset
360 pathstr2path = fast_pathstr2path
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361 else:
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diff changeset
362 pathstr2path = py_pathstr2path
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diff changeset
363
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parents: 541
diff changeset
364
541
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365 def _split_ns(varname):
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diff changeset
366 """Split the variable name string `varname` into the namespace and
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diff changeset
367 the namespace-specific name
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368
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369 :type varname: str
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370 :return: A tuple containing the namespace (or `None`) and the
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diff changeset
371 namespace-specific (variable-)name
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372 :rtype: tuple(str or None, str)
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373
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diff changeset
374 """
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diff changeset
375 ns, sep, rest = varname.partition(_NS_SEPARATOR)
540
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376 if sep:
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377 return (unquote(ns), rest)
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378 else:
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379 return (None, ns)
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diff changeset
380
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diff changeset
381
541
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diff changeset
382 def _split_filters(varname):
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diff changeset
383 """Split off the filter part from the `varname` string
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diff changeset
384
542
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diff changeset
385 :type varname: str
541
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diff changeset
386 :return: The tuple of the variable name without the filters and a list
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diff changeset
387 of filters
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diff changeset
388 :rtype: tuple(str, list)
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diff changeset
389
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diff changeset
390 """
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diff changeset
391 name, sep, filters = varname.partition(_FILTER_SEPARATOR)
540
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diff changeset
392 if sep:
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diff changeset
393 filters = filters.strip()
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diff changeset
394 if filters:
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diff changeset
395 return (name.rstrip(),
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diff changeset
396 filters.split(_FILTER_SEPARATOR))
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diff changeset
397 else:
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diff changeset
398 return (name.rstrip(), [])
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diff changeset
399 else:
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diff changeset
400 return (name, [])
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parents: 539
diff changeset
401
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Franz Glasner <fzglas.hg@dom66.de>
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diff changeset
402
412
816327e178b0 Provide coercing methods for the jailed configuration: getintXXX(), getboolXXX(), getfloatXXX() and friends.
Franz Glasner <fzglas.hg@dom66.de>
parents: 411
diff changeset
403 class Configuration(CoercingMethodsMixin, _AttributeDict):
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
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parents:
diff changeset
404
18
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 17
diff changeset
405 """The configuration dictionary with attribute support or
Franz Glasner <f.glasner@feldmann-mg.com>
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diff changeset
406 variable substitution.
Franz Glasner <f.glasner@feldmann-mg.com>
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diff changeset
407
322
4aa19e04ff65 Comment: typo
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 321
diff changeset
408 .. note:: When retrieving by attribute names variables will *not*
18
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 17
diff changeset
409 substituted.
Franz Glasner <f.glasner@feldmann-mg.com>
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diff changeset
410
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 17
diff changeset
411 """
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 17
diff changeset
412
404
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 400
diff changeset
413 is_jail = False
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parents: 400
diff changeset
414 """Flag to show that this is not a jail for another configuration"""
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parents: 400
diff changeset
415
499
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
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diff changeset
416 def __init__(self, *args, **kwds):
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
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parents: 497
diff changeset
417 #
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
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parents: 497
diff changeset
418 # PY2.7 compat: must be set before calling the superclass' __init__
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
419 #
526
48990863b905 Rename internal cache from __cache to __lookup_cache
Franz Glasner <f.glasner@feldmann-mg.com>
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diff changeset
420 self.__lookup_cache = {}
527
08924499db3c Implement a simple interpolation cache for text types
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parents: 526
diff changeset
421 self.__interpolation_cache = {}
499
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
422 super(Configuration, self).__init__(*args, **kwds)
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
423
506
dffa692751b1 Implement clear_cache() for the configuration
Franz Glasner <fzglas.hg@dom66.de>
parents: 504
diff changeset
424 def clear_cache(self):
529
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 528
diff changeset
425 """Clear the internal lookup cache and the interpolation cache"""
526
48990863b905 Rename internal cache from __cache to __lookup_cache
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parents: 525
diff changeset
426 self.__lookup_cache.clear()
527
08924499db3c Implement a simple interpolation cache for text types
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 526
diff changeset
427 self.__interpolation_cache.clear()
506
dffa692751b1 Implement clear_cache() for the configuration
Franz Glasner <fzglas.hg@dom66.de>
parents: 504
diff changeset
428
437
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
429 def __getitem__(self, key):
469
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
430 """Mapping and list interface that forwards to :meth:`~.getvarl_s`
437
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
431
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
432 """
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
433 if isinstance(key, (tuple, list)):
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
434 return self.getvarl_s(*key)
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
435 else:
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
436 return self.getvarl_s(key)
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
437
442
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
438 def get(self, key, default=None):
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
439 """Mapping interface that forwards to :meth:`~.getvarl_s`
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
440
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
441 """
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
442 if isinstance(key, (tuple, list)):
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
443 return self.getvarl_s(*key, default=default)
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
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parents: 441
diff changeset
444 else:
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
445 return self.getvarl_s(key, default=default)
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
446
439
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
447 def __contains__(self, key):
469
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
448 """Containment test"""
439
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
449 if isinstance(key, (tuple, list)):
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parents: 438
diff changeset
450 # No namespace and quoting support here
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parents: 438
diff changeset
451 try:
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Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
452 self._lookupvar(*key)
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parents: 438
diff changeset
453 except KeyError:
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parents: 438
diff changeset
454 return False
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parents: 438
diff changeset
455 else:
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
456 return True
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
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parents: 438
diff changeset
457 else:
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
458 return super(Configuration, self).__contains__(key)
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
459
443
23941c014130 FIX: Merge properly when the configuration's __getitem__ do now interpolate: prohibit duplicate interpolation and interpolation while merging
Franz Glasner <fzglas.hg@dom66.de>
parents: 442
diff changeset
460 def getitem_ns(self, key):
23941c014130 FIX: Merge properly when the configuration's __getitem__ do now interpolate: prohibit duplicate interpolation and interpolation while merging
Franz Glasner <fzglas.hg@dom66.de>
parents: 442
diff changeset
461 """Just forward to the *original* :meth:`dict.__getitem__`.
23941c014130 FIX: Merge properly when the configuration's __getitem__ do now interpolate: prohibit duplicate interpolation and interpolation while merging
Franz Glasner <fzglas.hg@dom66.de>
parents: 442
diff changeset
462
23941c014130 FIX: Merge properly when the configuration's __getitem__ do now interpolate: prohibit duplicate interpolation and interpolation while merging
Franz Glasner <fzglas.hg@dom66.de>
parents: 442
diff changeset
463 No variable interpolation and key path access.
23941c014130 FIX: Merge properly when the configuration's __getitem__ do now interpolate: prohibit duplicate interpolation and interpolation while merging
Franz Glasner <fzglas.hg@dom66.de>
parents: 442
diff changeset
464
23941c014130 FIX: Merge properly when the configuration's __getitem__ do now interpolate: prohibit duplicate interpolation and interpolation while merging
Franz Glasner <fzglas.hg@dom66.de>
parents: 442
diff changeset
465 """
23941c014130 FIX: Merge properly when the configuration's __getitem__ do now interpolate: prohibit duplicate interpolation and interpolation while merging
Franz Glasner <fzglas.hg@dom66.de>
parents: 442
diff changeset
466 return super(Configuration, self).__getitem__(key)
23941c014130 FIX: Merge properly when the configuration's __getitem__ do now interpolate: prohibit duplicate interpolation and interpolation while merging
Franz Glasner <fzglas.hg@dom66.de>
parents: 442
diff changeset
467
517
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
468 def items(self):
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
469 """Items without interpolation"""
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
470 for k in self:
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
471 yield (k, self.getitem_ns(k))
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
472
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
473 def values(self):
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
474 """Values without interpolation"""
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
475 for k in self:
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
476 yield self.getitem_ns(k)
328af767f5f8 Implement Configuration.items() and Configuration.values() without interpolating the values
Franz Glasner <fzglas.hg@dom66.de>
parents: 516
diff changeset
477
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
478 def getvarl(self, *path, **kwds):
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
479 """Get a variable where the hierarchy is given in `path` as sequence
380
bb4a90fb58e0 Docu: "namespace" in getvarl() is a keyword argument
Franz Glasner <fzglas.hg@dom66.de>
parents: 374
diff changeset
480 and the namespace is given in the `namespace` keyword argument.
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
481
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
482 No variable interpolation is done and no filters are applied.
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
483
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
484 Quoting of `path` and `namespace` is *not* needed and wrong.
333
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
485
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
486 """
321
7a0f3c256cf4 FIX: Python2 compatibility: keyword arguments after *args not allowed: use **kwds and manual retrieval with .pop() instead
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 320
diff changeset
487 default = kwds.pop("default", _MARKER)
7a0f3c256cf4 FIX: Python2 compatibility: keyword arguments after *args not allowed: use **kwds and manual retrieval with .pop() instead
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 320
diff changeset
488 namespace = kwds.pop("namespace", None)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
489 try:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
490 if not namespace:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
491 lookupfn = self._lookupvar
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
492 else:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
493 if namespace == REF_NAMESPACE:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
494 lookupfn = self._lookupref
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
495 else:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
496 lookupfn = lookup_varns(namespace)
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
497 varvalue = lookupfn(*path)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
498 except KeyError:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
499 if default is _MARKER:
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
500 raise KeyError("Variable %r not found" % (path,))
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
501 else:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
502 return default
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
503 else:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
504 return varvalue
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
505
418
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
506 def getkeysl(self, *path, **kwds):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
507 """Yield the keys of a variable value.
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
508
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
509 :rtype: A generator
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
510 :raise KeyError:
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
511
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
512 .. note:: Dictionary keys are not subject to interpolation.
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
513
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
514 """
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
515 if "default" in kwds:
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
516 raise TypeError("got unexpected keyword argument: default")
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
517 for k in self.getvarl(*path, **kwds).keys():
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
518 yield k
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
519
381
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
520 def getfirstvarl(self, *paths, **kwds):
385
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
521 """A variant of :meth:`~.getvarl` that returns the first found
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
522 variable in the `paths` list.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
523
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
524 Every item in `paths` is either a `tuple` or `list` or a `dict`.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
525 If the path item is a `dict` then it must have two keys "namespace"
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
526 and "path".
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
527 If the path item is a `list` or `tuple` then the namespace is assumed
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
528 to be `None`.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
529
389
Franz Glasner <fzglas.hg@dom66.de>
parents: 388
diff changeset
530 Note that a caller that wants to use variables from a non-default
Franz Glasner <fzglas.hg@dom66.de>
parents: 388
diff changeset
531 namespace must use a sequence of dicts.
Franz Glasner <fzglas.hg@dom66.de>
parents: 388
diff changeset
532
385
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
533 No variable interpolation is done and no filters are applied.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
534
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
535 Quoting of anything in `paths` is *not* needed and wrong.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
536
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
537 """
381
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
538 default = kwds.pop("default", _MARKER)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
539 for path in paths:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
540 if isinstance(path, (list, tuple)):
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
541 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
542 varvalue = self.getvarl(*path)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
543 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
544 pass
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
545 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
546 return varvalue
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
547 elif isinstance(path, dict):
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
548 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
549 namespace = path["namespace"]
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
550 p = path["path"]
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
551 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
552 raise TypeError("a paths dict item must have a `path'"
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
553 " and a `namespace' key")
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
554 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
555 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
556 varvalue = self.getvarl(*p, namespace=namespace)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
557 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
558 pass
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
559 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
560 return varvalue
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
561 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
562 raise TypeError("a paths item must be a dict, list or tuple")
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
563 if default is _MARKER:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
564 raise KeyError(
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
565 "none of the given variables found: %r" % (paths,))
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
566 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
567 return default
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
568
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
569 def getvar(self, varname, default=_MARKER):
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
570 """Get a variable of the form ``[ns:][[key1.]key2.]name`` - including
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
571 variables from other namespaces.
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
572
202
2e66178a09d8 Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 156
diff changeset
573 No variable interpolation is done and no filters are applied.
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
574
333
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
575 Special characters (e.g. ``:`` and ``.``) must be quoted when using
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
576 the default namespace.
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
577
502
4f90e1eb7af8 Make quote() and unquote() module globals and also export from configmix
Franz Glasner <fzglas.hg@dom66.de>
parents: 500
diff changeset
578 See also :func:`.quote`.
333
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
579
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
580 """
540
33856ae1cc0b _split_ns() and _split_filters() are now module-globals
Franz Glasner <fzglas.hg@dom66.de>
parents: 539
diff changeset
581 varns, varname = _split_ns(varname)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
582 if not varns:
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
583 return self.getvarl(*pathstr2path(varname), default=default)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
584 else:
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
585 return self.getvarl(varname, namespace=varns, default=default)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
586
418
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
587 def getkeys(self, varname):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
588 """Yield all the keys of a variable value.
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
589
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
590 :rtype: A generator
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
591 :raise KeyError:
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
592
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
593 .. note:: Dictionary keys are not subject to interpolation.
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
594
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
595 """
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
596 for k in self.getvar(varname).keys():
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
597 yield k
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
598
368
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
599 def getfirstvar(self, *varnames, **kwds):
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
600 """A variant of :meth:`~.getvar` that returns the first found variable
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
601 in the list of given variables in `varnames`.
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
602
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
603 """
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
604 default = kwds.pop("default", _MARKER)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
605 for varname in varnames:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
606 try:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
607 varvalue = self.getvar(varname)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
608 except KeyError:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
609 pass
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
610 else:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
611 return varvalue
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
612 if default is _MARKER:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
613 raise KeyError(
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
614 "none of the given variables found: %r" % (varnames,))
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
615 else:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
616 return default
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
617
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
618 def getvarl_s(self, *path, **kwds):
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
619 """Get a variable - including variables from other namespaces.
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
620
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
621 `path` and `namespace` are interpreted as in
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
622 :meth:`.getvarl`. But variables will be interpolated
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
623 recursively within the variable values and filters are
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
624 applied.
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
625
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
626 For more details see chapter :ref:`variable-interpolation`.
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
627
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
628 """
321
7a0f3c256cf4 FIX: Python2 compatibility: keyword arguments after *args not allowed: use **kwds and manual retrieval with .pop() instead
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 320
diff changeset
629 default = kwds.pop("default", _MARKER)
7a0f3c256cf4 FIX: Python2 compatibility: keyword arguments after *args not allowed: use **kwds and manual retrieval with .pop() instead
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 320
diff changeset
630 namespace = kwds.pop("namespace", None)
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
631 try:
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
632 obj = self.getvarl(*path, namespace=namespace)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
633 return self.substitute_variables_in_obj(obj)
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
634 except KeyError:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
635 if default is _MARKER:
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
636 raise
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
637 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
638 return default
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
639
381
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
640 def getfirstvarl_s(self, *paths, **kwds):
388
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
641 """A variant of :meth:`~.getfirstvarl` that does variable
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
642 interpolation.
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
643
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
644 `paths` and `kwds` are interpreted as in :meth:`.getfirstvarl`.
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
645 But variables will be interpolated
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
646 recursively within the variable values and filters are
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
647 applied.
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
648
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
649 For more details see chapter :ref:`variable-interpolation`.
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
650
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
651 """
381
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
652 default = kwds.pop("default", _MARKER)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
653 for path in paths:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
654 if isinstance(path, (list, tuple)):
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
655 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
656 obj = self.getvarl(*path)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
657 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
658 pass
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
659 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
660 return self.substitute_variables_in_obj(obj)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
661
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
662 elif isinstance(path, dict):
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
663 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
664 namespace = path["namespace"]
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
665 p = path["path"]
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
666 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
667 raise TypeError("a paths dict item must have a `path'"
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
668 " and a `namespace' key")
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
669 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
670 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
671 obj = self.getvarl(*p, namespace=namespace)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
672 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
673 pass
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
674 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
675 return self.substitute_variables_in_obj(obj)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
676 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
677 raise TypeError("a paths item must be a dict, list or tuple")
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
678 if default is _MARKER:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
679 raise KeyError(
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
680 "none of the given variables found: %r" % (paths,))
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
681 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
682 return default
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
683
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
684 def getvar_s(self, varname, default=_MARKER):
24
fa65adab0b71 FIX: Typo in comment
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 23
diff changeset
685 """Get a variable - including variables from other namespaces.
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
686
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
687 `varname` is interpreted as in :meth:`.getvar`. But variables
202
2e66178a09d8 Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 156
diff changeset
688 will be interpolated recursively within the variable values
2e66178a09d8 Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 156
diff changeset
689 and filters are applied.
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
690
202
2e66178a09d8 Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 156
diff changeset
691 For more details see chapter :ref:`variable-interpolation`.
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
692
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
693 """
540
33856ae1cc0b _split_ns() and _split_filters() are now module-globals
Franz Glasner <fzglas.hg@dom66.de>
parents: 539
diff changeset
694 varns, varname = _split_ns(varname)
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
695 try:
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
696 if not varns:
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
697 return self.substitute_variables_in_obj(
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
698 self.getvarl(*pathstr2path(varname)))
524
09b8e28b7a44 Implement Configuration.getvar_s() by using Configuration.getvarl() instead of Configuration.getvar().
Franz Glasner <fzglas.hg@dom66.de>
parents: 523
diff changeset
699 else:
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
700 return self.substitute_variables_in_obj(
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
701 self.getvarl(varname, namespace=varns))
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
702 except KeyError:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
703 if default is _MARKER:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
704 raise
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
705 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
706 return default
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
707
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
708 def _getvar_s_with_cache_info(self, varname):
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
709 """Internal variant of :meth:`~.getvar_s` that returns some information
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
710 whether caching of interpolated values is allowed
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
711
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
712 Caching is currently not allowed when namespaces are used.
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
713
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
714 Currently used by :meth:`~.interpolate_variables`.
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
715
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
716 """
540
33856ae1cc0b _split_ns() and _split_filters() are now module-globals
Franz Glasner <fzglas.hg@dom66.de>
parents: 539
diff changeset
717 varns, varname = _split_ns(varname)
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
718 if not varns:
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
719 # no namespace -> cacheable
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
720 return (
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
721 self.substitute_variables_in_obj(
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
722 self.getvarl(*pathstr2path(varname))),
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
723 True
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
724 )
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
725 else:
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
726 # results from namespaced lookups are currently not cacheable
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
727 return (
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
728 self.substitute_variables_in_obj(
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
729 self.getvarl(varname, namespace=varns)),
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
730 False
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
731 )
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
732
368
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
733 def getfirstvar_s(self, *varnames, **kwds):
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
734 """A variant of :meth:`~.getvar_s` that returns the first found
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
735 variable in the list of given variables in `varnames`.
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
736
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
737 """
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
738 default = kwds.pop("default", _MARKER)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
739 for varname in varnames:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
740 try:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
741 obj = self.getvar(varname)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
742 except KeyError:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
743 pass
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
744 else:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
745 return self.substitute_variables_in_obj(obj)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
746 if default is _MARKER:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
747 raise KeyError(
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
748 "none of the given variables found: %r" % (varnames,))
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
749 else:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
750 return default
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
751
489
b49164db1273 Remove unused keyword params for ._lookupvar().
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 488
diff changeset
752 def _lookupvar(self, *path):
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
753 """Lookup a variable within a hierarchy.
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
754
489
b49164db1273 Remove unused keyword params for ._lookupvar().
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 488
diff changeset
755 :raise KeyError: An unexisting `path` raises a `KeyError`
b49164db1273 Remove unused keyword params for ._lookupvar().
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 488
diff changeset
756
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
757 """
419
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
758 if not path:
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
759 return self
526
48990863b905 Rename internal cache from __cache to __lookup_cache
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 525
diff changeset
760 v = self.__lookup_cache.get(path, _MARKER)
499
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
761 if v is not _MARKER:
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
762 if v is _MISSING:
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
763 raise KeyError(
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
764 "Configuration variable %r not found"
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
765 " (negative internal cache value)" % (path,))
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
766 else:
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
767 return v
493
6a0f761ff35b Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 491
diff changeset
768 eiref = self.expand_if_reference
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
769 try:
493
6a0f761ff35b Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 491
diff changeset
770 v = eiref(super(Configuration, self).__getitem__(path[0]))
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
771 for p in path[1:]:
493
6a0f761ff35b Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 491
diff changeset
772 v = eiref(v[p])
104
d9f9a06e0c49 Make a better error message for "TypeError" exceptions when looking up variables.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 82
diff changeset
773 except TypeError:
526
48990863b905 Rename internal cache from __cache to __lookup_cache
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 525
diff changeset
774 self.__lookup_cache[path] = _MISSING
207
b3b5ed34d180 Handle most flake8 errors and warnings.
Franz Glasner <fzglas.hg@dom66.de>
parents: 202
diff changeset
775 raise KeyError(
b3b5ed34d180 Handle most flake8 errors and warnings.
Franz Glasner <fzglas.hg@dom66.de>
parents: 202
diff changeset
776 "Configuration variable %r not found"
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
777 "(missing intermediate keys?)" % (path,))
499
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
778 except KeyError:
526
48990863b905 Rename internal cache from __cache to __lookup_cache
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 525
diff changeset
779 self.__lookup_cache[path] = _MISSING
499
f46932e8a84c Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents: 497
diff changeset
780 raise
526
48990863b905 Rename internal cache from __cache to __lookup_cache
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 525
diff changeset
781 self.__lookup_cache[path] = v
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
782 return v
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
783
518
55b8aed70f7d Remove unneeded "default" keyword argument for Configuration._lookupref() and Configuration.expand_ref_uri()
Franz Glasner <fzglas.hg@dom66.de>
parents: 517
diff changeset
784 def _lookupref(self, key):
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
785 """
311
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
786
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
787 `key` must be a configuration reference URI without any
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
788 (namespace) prefixes and suffixes
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
789
519
Franz Glasner <fzglas.hg@dom66.de>
parents: 518
diff changeset
790 :raise KeyError: If the reference is not found
Franz Glasner <fzglas.hg@dom66.de>
parents: 518
diff changeset
791
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
792 """
518
55b8aed70f7d Remove unneeded "default" keyword argument for Configuration._lookupref() and Configuration.expand_ref_uri()
Franz Glasner <fzglas.hg@dom66.de>
parents: 517
diff changeset
793 return self.expand_ref_uri(key)
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
794
493
6a0f761ff35b Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 491
diff changeset
795 def expand_if_reference(self, v):
311
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
796 """Check whether `v` is a configuration reference and -- if true --
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
797 then expand it.
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
798
310
801cd16223e4 FIX: Docu
Franz Glasner <fzglas.hg@dom66.de>
parents: 305
diff changeset
799 `v` must match the pattern ``{{ref:<REFERENCE>}}``
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
800
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
801 All non-matching texttypes and all non-texttypes are returned
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
802 unchanged.
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
803
493
6a0f761ff35b Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 491
diff changeset
804 :raise KeyError: If the reverence cannot found
6a0f761ff35b Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 491
diff changeset
805
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
806 """
495
3f0c932588fc Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 493
diff changeset
807 if not isinstance(v, _TEXTTYPE):
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
808 return v
495
3f0c932588fc Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 493
diff changeset
809 if v.startswith(_STARTTOK_REF) and v.endswith(_ENDTOK_REF):
488
298510ec8171 Simplify logic by not using many negations
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 487
diff changeset
810 return self.expand_ref_uri(
495
3f0c932588fc Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 493
diff changeset
811 v[len(_STARTTOK_REF):-len(_ENDTOK_REF)])
488
298510ec8171 Simplify logic by not using many negations
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 487
diff changeset
812 else:
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
813 return v
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
814
518
55b8aed70f7d Remove unneeded "default" keyword argument for Configuration._lookupref() and Configuration.expand_ref_uri()
Franz Glasner <fzglas.hg@dom66.de>
parents: 517
diff changeset
815 def expand_ref_uri(self, uri):
519
Franz Glasner <fzglas.hg@dom66.de>
parents: 518
diff changeset
816 """
Franz Glasner <fzglas.hg@dom66.de>
parents: 518
diff changeset
817
Franz Glasner <fzglas.hg@dom66.de>
parents: 518
diff changeset
818 :raises KeyError: If the reference URI is not found
Franz Glasner <fzglas.hg@dom66.de>
parents: 518
diff changeset
819
Franz Glasner <fzglas.hg@dom66.de>
parents: 518
diff changeset
820 """
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
821 pu = urlsplit(uri)
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
822 if pu.scheme or pu.netloc or pu.path or pu.query:
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
823 raise ValueError("only fragment-only URIs are supported")
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
824 if not pu.fragment:
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
825 return self
495
3f0c932588fc Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 493
diff changeset
826 if pu.fragment.startswith(_DOT):
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
827 raise ValueError("relative refs not supported")
518
55b8aed70f7d Remove unneeded "default" keyword argument for Configuration._lookupref() and Configuration.expand_ref_uri()
Franz Glasner <fzglas.hg@dom66.de>
parents: 517
diff changeset
828 return self.getvar(pu.fragment)
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
829
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
830 def substitute_variables_in_obj(self, obj):
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
831 """Recursively expand variables in the object tree `obj`."""
491
de776953337b Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 490
diff changeset
832 ty = type(obj)
495
3f0c932588fc Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 493
diff changeset
833 if issubclass(ty, _TEXTTYPE):
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
834 # a string - really replace the value
525
be6ef72c55d5 Change Configuration.expand_variable() to Configuration.interpolate_variables()
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 524
diff changeset
835 return self.interpolate_variables(obj)
491
de776953337b Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 490
diff changeset
836 elif issubclass(ty, dict):
de776953337b Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 490
diff changeset
837 newdict = ty()
497
8e516f17cf95 Optimize .substitute_variables_in_obj: use dict.items() to avoid one dict lookup
Franz Glasner <fzglas.hg@dom66.de>
parents: 495
diff changeset
838 for k, v in obj.items():
8e516f17cf95 Optimize .substitute_variables_in_obj: use dict.items() to avoid one dict lookup
Franz Glasner <fzglas.hg@dom66.de>
parents: 495
diff changeset
839 newdict[k] = self.substitute_variables_in_obj(v)
490
ea4b7fac02d6 Reorder type comparisons by usage
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 489
diff changeset
840 return newdict
491
de776953337b Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 490
diff changeset
841 elif issubclass(ty, list):
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
842 return [self.substitute_variables_in_obj(i) for i in obj]
491
de776953337b Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 490
diff changeset
843 elif issubclass(ty, tuple):
512
bf8a1b1498db Remove a temporary variable usage
Franz Glasner <fzglas.hg@dom66.de>
parents: 511
diff changeset
844 return ty([self.substitute_variables_in_obj(i) for i in obj])
491
de776953337b Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 490
diff changeset
845 elif issubclass(ty, set):
de776953337b Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 490
diff changeset
846 newset = ty()
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
847 for i in obj:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
848 newset.add(self.substitute_variables_in_obj(i))
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
849 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
850 return obj
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
851
525
be6ef72c55d5 Change Configuration.expand_variable() to Configuration.interpolate_variables()
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 524
diff changeset
852 def interpolate_variables(self, s):
be6ef72c55d5 Change Configuration.expand_variable() to Configuration.interpolate_variables()
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 524
diff changeset
853 """Expand all variables in the single string `s`"""
495
3f0c932588fc Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 493
diff changeset
854 start = s.find(_STARTTOK, 0)
484
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
855 if start < 0:
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
856 return s
527
08924499db3c Implement a simple interpolation cache for text types
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 526
diff changeset
857 res = self.__interpolation_cache.get(s, _MARKER)
08924499db3c Implement a simple interpolation cache for text types
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 526
diff changeset
858 if res is not _MARKER:
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
859 if res is _MISSING:
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
860 warnings.warn("Cannot interpolate variables in string "
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
861 "%r (cached)" % (s, ),
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
862 UserWarning,
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
863 stacklevel=1)
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
864 raise KeyError("Cannot interpolate variables in string "
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
865 "%r (cached)" % (s, ))
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
866 else:
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
867 return res
515
3387a9d5fb12 Performance: compute the length of the constant input strinc only once and compute the new rest earlier and use the computed value also in comparisons
Franz Glasner <fzglas.hg@dom66.de>
parents: 513
diff changeset
868 len_s = len(s)
484
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
869 res = []
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
870 res_append = res.append
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
871 rest = 0
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
872 use_cache = True
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
873 while start != -1:
484
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
874 res_append(s[rest:start])
495
3f0c932588fc Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 493
diff changeset
875 end = s.find(_ENDTOK, start)
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
876 if end < 0:
484
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
877 rest = start
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
878 break
540
33856ae1cc0b _split_ns() and _split_filters() are now module-globals
Franz Glasner <fzglas.hg@dom66.de>
parents: 539
diff changeset
879 varname, filters = _split_filters(
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
880 s[start+2:end]) # noqa: E226
39
8715e5cc59ac Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents: 36
diff changeset
881 try:
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
882 varvalue, cacheable = self._getvar_s_with_cache_info(varname)
528
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
883 except KeyError:
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
884 cacheable = True
528
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
885 if NONE_FILTER in filters:
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
886 varvalue = None
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
887 elif EMPTY_FILTER in filters:
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
888 varvalue = _EMPTY_STR
349
83f76a41cf7c Implement a special filter named "None" that suppresses "KeyErrors" from interpolation lookups and returns a Python "None" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 334
diff changeset
889 else:
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
890 self.__interpolation_cache[s] = _MISSING
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
891 warnings.warn("Cannot interpolate variable %r in string "
528
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
892 "%r" % (varname, s, ),
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
893 UserWarning,
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
894 stacklevel=1)
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
895 raise
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
896 if not cacheable:
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
897 use_cache = False
528
54a8d020f5d5 Apply None and Empty interpolation filters only on KeyErrors
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 527
diff changeset
898 varvalue = self._apply_filters(filters, varvalue)
515
3387a9d5fb12 Performance: compute the length of the constant input strinc only once and compute the new rest earlier and use the computed value also in comparisons
Franz Glasner <fzglas.hg@dom66.de>
parents: 513
diff changeset
899 rest = end + 2
251
2a8dcab2de8c Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents: 250
diff changeset
900 #
350
9d729c479dc2 FIX: Do not apply the type convertion None -> "" if the expansions comprises the whole expression
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 349
diff changeset
901 # Dont apply and type conversions to the variable value if
9d729c479dc2 FIX: Do not apply the type convertion None -> "" if the expansions comprises the whole expression
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 349
diff changeset
902 # the whole `s` is just one expansion
251
2a8dcab2de8c Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents: 250
diff changeset
903 #
515
3387a9d5fb12 Performance: compute the length of the constant input strinc only once and compute the new rest earlier and use the computed value also in comparisons
Franz Glasner <fzglas.hg@dom66.de>
parents: 513
diff changeset
904 if (start == 0) and (rest == len_s):
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
905 if use_cache:
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
906 self.__interpolation_cache[s] = varvalue
251
2a8dcab2de8c Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents: 250
diff changeset
907 return varvalue
516
ad1e630ba736 FIX: Do not filter-out all False values then interpolating (zero int, boolean False)
Franz Glasner <fzglas.hg@dom66.de>
parents: 515
diff changeset
908 if varvalue is None:
484
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
909 pass
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
910 else:
487
d7f6f2afcee2 Instead of using u(str(v)) use specialized functions for PY2 and PY3
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 485
diff changeset
911 res_append(str_and_u(varvalue))
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
912 # don't re-evaluate because `self.getvar_s()` expands already
495
3f0c932588fc Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 493
diff changeset
913 start = s.find(_STARTTOK, rest)
484
0259bd521729 Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 483
diff changeset
914 res_append(s[rest:])
527
08924499db3c Implement a simple interpolation cache for text types
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 526
diff changeset
915 res = _EMPTY_STR.join(res)
530
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
916 if use_cache:
28191d61b042 FIX: Handle non-cacheable interpolations properly.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 529
diff changeset
917 self.__interpolation_cache[s] = res
527
08924499db3c Implement a simple interpolation cache for text types
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 526
diff changeset
918 return res
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
919
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
920 def _apply_filters(self, filters, value):
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
921 for name in filters:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
922 try:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
923 filterfn = lookup_filter(name)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
924 except KeyError:
40
8d66aef2f7fb Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents: 39
diff changeset
925 #
8d66aef2f7fb Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents: 39
diff changeset
926 # Convert to NameError because we find a missing filters
8d66aef2f7fb Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents: 39
diff changeset
927 # a very serious error.
8d66aef2f7fb Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents: 39
diff changeset
928 #
521
1001701be682 Formatting of NameErrors in ._apply_filters(): put "name" into a tuple explicitely
Franz Glasner <fzglas.hg@dom66.de>
parents: 519
diff changeset
929 raise NameError("Filter %r not found" % (name, ))
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
930 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
931 value = filterfn(self, value)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
932 return value
320
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
933
411
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
934 def jailed(self, rootpath=None, root=None, bind_root=True):
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
935 """Return a "jailed" configuration of the current configuration.
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
936
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
937 :param rootpath: a sequence of strings that shall emcompass
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
938 the chroot-like jail of the returned
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
939 configuration
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
940 :type rootpath: list or tuple
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
941 :param str root: a string path expression that shall encompass
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
942 the chroot-like jail of the returned configuration
411
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
943 :param bool bind_root: if you do a :meth:`~.rebind` just after
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
944 creation of a jailed config you can set
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
945 `bind_root` to `False`; otherwise use
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
946 the default
397
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
947 :return: a jailed (aka restricted) configuration
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
948 :rtype: _JailedConfiguration
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
949
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
950 Exactly one of `rootpath` or `root` must be given.
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
951
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
952 """
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
953 if rootpath is not None and root is not None:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
954 raise ValueError("only one of `rootpath' or `root' can be given")
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
955 if rootpath is None and root is None:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
956 raise ValueError("one of `rootpath' or `root' must be given")
416
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
957 if rootpath is not None and not isinstance(rootpath, (list, tuple)):
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
958 raise TypeError("`rootpath' must be a list or a tuple")
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
959 if root is not None:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
960 # convert to path
540
33856ae1cc0b _split_ns() and _split_filters() are now module-globals
Franz Glasner <fzglas.hg@dom66.de>
parents: 539
diff changeset
961 varns, varname = _split_ns(root)
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
962 if varns:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
963 raise ValueError(
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
964 "jailed configurations do not support namespaces")
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
965 rootpath = pathstr2path(root)
411
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
966 jc = _JailedConfiguration(*rootpath)
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
967 if bind_root:
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
968 jc.rebind(self)
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
969 return jc
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
970
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
971
412
816327e178b0 Provide coercing methods for the jailed configuration: getintXXX(), getboolXXX(), getfloatXXX() and friends.
Franz Glasner <fzglas.hg@dom66.de>
parents: 411
diff changeset
972 class _JailedConfiguration(CoercingMethodsMixin):
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
973
397
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
974 """A jailed and restricted variant of :class:`Configuration`.
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
975
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
976 Restriction is two-fold:
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
977
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
978 - The access to configuration variables in `config` is restricted
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
979 to the configuration sub-tree that is configured in `path`.
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
980
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
981 - Not all access-methods of :class:`Configuration` are implemented
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
982 yet.
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
983
400
Franz Glasner <fzglas.hg@dom66.de>
parents: 399
diff changeset
984 .. seealso:: :ref:`jailed-configuration`
Franz Glasner <fzglas.hg@dom66.de>
parents: 399
diff changeset
985
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
986 .. note:: There is no namespace support.
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
987
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
988 .. note:: Do not call the constructor directly. Instantiate a jailed
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
989 configuration from the parent configuration's
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
990 :meth:`~.Configuration.jailed` factory method.
397
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
991
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
992 """
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
993
503
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
994 __slots__ = ("_base", "_path", "_path_string")
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
995
404
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 400
diff changeset
996 is_jail = True
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 400
diff changeset
997 """Flag to show that this is a jail for another configuration"""
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 400
diff changeset
998
411
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
999 def __init__(self, *path):
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1000 super(_JailedConfiguration, self).__init__()
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1001 self._path = path
503
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1002 self._path_string = None
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1003
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1004 @property
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1005 def _pathstr(self):
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1006 v = self._path_string
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1007 if v is None:
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1008 if self._path:
513
599e8ade567c str.join(): use a list comprehension instead of a generator expression for performance reasons
Franz Glasner <fzglas.hg@dom66.de>
parents: 512
diff changeset
1009 v = _HIER_SEPARATOR.join([quote(p) for p in self._path]) \
503
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1010 + _HIER_SEPARATOR
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1011 else:
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1012 v = _EMPTY_STR
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1013 self._path_string = v
a56f1d97a3f3 Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 502
diff changeset
1014 return v
405
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1015
406
5286df5aeefe Allow a jailed configuration to return its base configuration via a property
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 405
diff changeset
1016 @property
5286df5aeefe Allow a jailed configuration to return its base configuration via a property
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 405
diff changeset
1017 def base(self):
426
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
1018 """Ask for the base (aka parent) configuration".
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
1019
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
1020 This configuration is always unjailed.
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
1021
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
1022 """
406
5286df5aeefe Allow a jailed configuration to return its base configuration via a property
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 405
diff changeset
1023 return self._base
5286df5aeefe Allow a jailed configuration to return its base configuration via a property
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 405
diff changeset
1024
405
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1025 def rebind(self, new_base):
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1026 """Bind the jail to a new unjailed configuration `new_base`.
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1027
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1028 The new configuration base also must have an existing path to
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1029 the root.
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1030
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1031 :param Configuration new_base: the new base
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1032
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1033 """
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1034 if new_base.is_jail:
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1035 raise TypeError("can only bind to an unjailed configuration")
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
1036 self._base = new_base
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1037 #
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1038 # Early error out if the chroot does not exist but allow
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1039 # degenerated case if `self._path` is empty.
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1040 #
449
5864977bb44f FIX: KeyError formatting.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 448
diff changeset
1041 if self._path and self._path not in new_base:
5864977bb44f FIX: KeyError formatting.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 448
diff changeset
1042 raise KeyError(
5864977bb44f FIX: KeyError formatting.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 448
diff changeset
1043 "base key path %r not available in the new base"
5864977bb44f FIX: KeyError formatting.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 448
diff changeset
1044 % (self._path, ))
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1045
448
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1046 def __getattr__(self, name):
469
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1047 """Attribute-style access.
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1048
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1049 Result values are interpolated (i.e. forwarded to
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1050 :meth:`~.getvarl_s`)
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1051
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1052 """
448
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1053 try:
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1054 v = self._base.getvarl_s(*(self._path + (name, )))
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1055 except KeyError:
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1056 raise AttributeError("%s has no attribute %r" % (type(self), name))
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1057 else:
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1058 # Wrap a dict into another dict with attribute access support
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1059 if isinstance(v, dict):
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1060 return _AttributeDict(v)
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1061 else:
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1062 return v
b95c12781497 Attribute-style access for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 443
diff changeset
1063
437
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
1064 def __getitem__(self, key):
469
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1065 """Mapping and list interface that forwards to :meth:`~.getvarl_s`
437
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
1066
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
1067 """
441
9d20fab53a19 FIX: Handle "list"-type keys in __contains__ and __getitem__ properly: convert to tuples for contatenation with tuple
Franz Glasner <fzglas.hg@dom66.de>
parents: 440
diff changeset
1068 if isinstance(key, tuple):
440
f297c23f78f0 Optimize __getitem__() in jailed configurations: call base directly
Franz Glasner <fzglas.hg@dom66.de>
parents: 439
diff changeset
1069 return self._base.getvarl_s(*(self._path + key))
441
9d20fab53a19 FIX: Handle "list"-type keys in __contains__ and __getitem__ properly: convert to tuples for contatenation with tuple
Franz Glasner <fzglas.hg@dom66.de>
parents: 440
diff changeset
1070 elif isinstance(key, list):
9d20fab53a19 FIX: Handle "list"-type keys in __contains__ and __getitem__ properly: convert to tuples for contatenation with tuple
Franz Glasner <fzglas.hg@dom66.de>
parents: 440
diff changeset
1071 return self._base.getvarl_s(*(self._path + tuple(key)))
437
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
1072 else:
468
95df1a10259a Index list-access for jailed configurations: be more generic by calling also __getitem__ in the base
Franz Glasner <fzglas.hg@dom66.de>
parents: 467
diff changeset
1073 return self._base.getvarl_s(*self._path)[key]
437
bbc5b64e137a - Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents: 432
diff changeset
1074
442
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
1075 def get(self, key, default=None):
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
1076 if isinstance(key, tuple):
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
1077 return self._base.get(self._path + key, default=default)
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
1078 elif isinstance(key, list):
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
1079 return self._base.get(self._path + tuple(key), default=default)
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
1080 else:
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
1081 return self._base.get(self._path + (key, ), default=default)
94cf5a8722d6 Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 441
diff changeset
1082
439
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
1083 def __contains__(self, key):
469
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1084 """Containment support for containers"""
441
9d20fab53a19 FIX: Handle "list"-type keys in __contains__ and __getitem__ properly: convert to tuples for contatenation with tuple
Franz Glasner <fzglas.hg@dom66.de>
parents: 440
diff changeset
1085 if isinstance(key, tuple):
439
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
1086 return (self._path + key) in self._base
441
9d20fab53a19 FIX: Handle "list"-type keys in __contains__ and __getitem__ properly: convert to tuples for contatenation with tuple
Franz Glasner <fzglas.hg@dom66.de>
parents: 440
diff changeset
1087 elif isinstance(key, list):
9d20fab53a19 FIX: Handle "list"-type keys in __contains__ and __getitem__ properly: convert to tuples for contatenation with tuple
Franz Glasner <fzglas.hg@dom66.de>
parents: 440
diff changeset
1088 return (self._path + tuple(key)) in self._base
439
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
1089 else:
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
1090 return (self._path + (key, )) in self._base
bd27da55483a Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 438
diff changeset
1091
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1092 def getvarl(self, *path, **kwds):
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1093 return self._base.getvarl(*(self._path + path), **kwds)
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1094
418
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
1095 def getkeysl(self, *path, **kwds):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
1096 for k in self._base.getkeysl(*(self._path + path), **kwds):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
1097 yield k
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
1098
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1099 def getfirstvarl(self, *paths, **kwds):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1100 real_paths = []
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1101 for path in paths:
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1102 if isinstance(path, (list, tuple)):
509
4c2517e18af0 FIX: Convert a list ito a tuple before appending it to another tuple
Franz Glasner <fzglas.hg@dom66.de>
parents: 507
diff changeset
1103 real_paths.append(self._path + tuple(path))
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1104 elif isinstance(path, dict):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1105 raise TypeError(
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1106 "a `dict' is not supported in a jailed configuration")
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1107 else:
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1108 raise TypeError("a paths item must be a list or tuple")
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1109 return self._base.getfirstvarl(*real_paths, **kwds)
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1110
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1111 def getvarl_s(self, *path, **kwds):
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1112 return self._base.getvarl_s(*(self._path + path), **kwds)
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1113
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1114 def getfirstvarl_s(self, *paths, **kwds):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1115 real_paths = []
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1116 for path in paths:
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1117 if isinstance(path, (list, tuple)):
510
acf1e8696d68 FIX: Some other lists that need to converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 509
diff changeset
1118 real_paths.append(self._path + tuple(path))
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1119 elif isinstance(path, dict):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1120 raise TypeError(
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1121 "a `dict' is not supported in a jailed configuration")
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1122 else:
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1123 raise TypeError("a paths item must be a list or tuple")
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1124 return self._base.getfirstvarl_s(*real_paths, **kwds)
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1125
428
090a25f36a3d FIX: Allow jailed configurations to use correctly use base configurations that use a different "default" marker object.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 426
diff changeset
1126 def getvar(self, varname, **kwds):
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
1127 return self._base.getvarl(*(self._path + pathstr2path(varname)),
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
1128 **kwds)
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
1129
418
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
1130 def getkeys(self, varname):
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
1131 for k in self._base.getkeysl(*(self._path + pathstr2path(varname))):
418
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
1132 yield k
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
1133
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1134 def getfirstvar(self, *varnames, **kwds):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1135 real_varnames = [self._pathstr + vn for vn in varnames]
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1136 return self._base.getfirstvar(*real_varnames, **kwds)
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1137
428
090a25f36a3d FIX: Allow jailed configurations to use correctly use base configurations that use a different "default" marker object.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 426
diff changeset
1138 def getvar_s(self, varname, **kwds):
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
1139 return self._base.getvarl_s(*(self._path + pathstr2path(varname)),
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
1140 **kwds)
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1141
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1142 def getfirstvar_s(self, *varnames, **kwds):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1143 real_varnames = [self._pathstr + vn for vn in varnames]
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
1144 return self._base.getfirstvar_s(*real_varnames, **kwds)
417
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1145
459
9dc9cef1b9cd Implement proper iteration support for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 455
diff changeset
1146 def __iter__(self):
469
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1147 """Iteration support for containers"""
459
9dc9cef1b9cd Implement proper iteration support for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 455
diff changeset
1148 return iter(self._base.getvarl_s(*self._path))
9dc9cef1b9cd Implement proper iteration support for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents: 455
diff changeset
1149
467
9fcdc42a0457 len-support for jailed configurations: implement a proper __len__() method
Franz Glasner <fzglas.hg@dom66.de>
parents: 460
diff changeset
1150 def __len__(self):
469
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1151 """Length support for containers"""
467
9fcdc42a0457 len-support for jailed configurations: implement a proper __len__() method
Franz Glasner <fzglas.hg@dom66.de>
parents: 460
diff changeset
1152 return len(self._base.getvarl(*self._path))
9fcdc42a0457 len-support for jailed configurations: implement a proper __len__() method
Franz Glasner <fzglas.hg@dom66.de>
parents: 460
diff changeset
1153
460
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1154 if PY2:
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1155
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1156 def __nonzero__(self):
469
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1157 """Map- and list-style evaluation in boolean context"""
460
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1158 return bool(self._base.getvarl_s(*self._path))
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1159
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1160 else:
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1161
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1162 def __bool__(self):
469
Franz Glasner <fzglas.hg@dom66.de>
parents: 468
diff changeset
1163 """Map- and list-style evaluation in boolean context"""
460
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1164 return bool(self._base.getvarl_s(*self._path))
d22985d6806e Proper boolean context for jailed configurations: __bool__()/__nonzero__()
Franz Glasner <fzglas.hg@dom66.de>
parents: 459
diff changeset
1165
417
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1166 def jailed(self, rootpath=None, root=None, bind_root=True):
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1167 """Return a "jailed" configuration that effectively is a
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1168 subjail of the current jail
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1169
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1170 For a more complete description see :meth:`.Configuration.jailed`.
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1171
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1172 """
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1173 if rootpath is not None and root is not None:
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1174 raise ValueError("only one of `rootpath' or `root' can be given")
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1175 if rootpath is None and root is None:
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1176 raise ValueError("one of `rootpath' or `root' must be given")
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1177 if rootpath is not None and not isinstance(rootpath, (list, tuple)):
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1178 raise TypeError("`rootpath' must be a list or a tuple")
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1179 if root is not None:
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1180 # convert to path
540
33856ae1cc0b _split_ns() and _split_filters() are now module-globals
Franz Glasner <fzglas.hg@dom66.de>
parents: 539
diff changeset
1181 varns, varname = _split_ns(root)
417
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1182 if varns:
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1183 raise ValueError(
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1184 "sub-jails do not support namespaces")
539
9546d38cd3f8 Refactor: the parsing of the quoted and dot-separated path string is put into a function that handles also empty inputs properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 531
diff changeset
1185 rootpath = pathstr2path(varname)
417
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1186 if self._path:
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1187 new_rootpath = self._path + tuple(rootpath)
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1188 else:
510
acf1e8696d68 FIX: Some other lists that need to converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents: 509
diff changeset
1189 new_rootpath = tuple(rootpath)
417
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1190 sjc = _JailedConfiguration(*new_rootpath)
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1191 if bind_root:
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1192 sjc.rebind(self._base)
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
1193 return sjc
432
b96f49c9c76b Proper "repr()" for a jailed configuration: put the root path into the output
Franz Glasner <fzglas.hg@dom66.de>
parents: 428
diff changeset
1194
b96f49c9c76b Proper "repr()" for a jailed configuration: put the root path into the output
Franz Glasner <fzglas.hg@dom66.de>
parents: 428
diff changeset
1195 def __repr__(self):
b96f49c9c76b Proper "repr()" for a jailed configuration: put the root path into the output
Franz Glasner <fzglas.hg@dom66.de>
parents: 428
diff changeset
1196 r = "_JailedConfiguration(rootpath=%s)" % n(repr(self._path))
b96f49c9c76b Proper "repr()" for a jailed configuration: put the root path into the output
Franz Glasner <fzglas.hg@dom66.de>
parents: 428
diff changeset
1197 return r