Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/rdflib/paths.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 from rdflib.py3compat import PY3, format_doctest_out
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2
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3 __doc__ = format_doctest_out("""
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4
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5 This module implements the SPARQL 1.1 Property path operators, as
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6 defined in:
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7
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8 http://www.w3.org/TR/sparql11-query/#propertypaths
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9
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10 In SPARQL the syntax is as follows:
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11
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12 +--------------------+-------------------------------------------------+
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13 |Syntax | Matches |
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14 +====================+=================================================+
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15 |iri | An IRI. A path of length one. |
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16 +--------------------+-------------------------------------------------+
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17 |^elt | Inverse path (object to subject). |
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18 +--------------------+-------------------------------------------------+
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19 |elt1 / elt2 | A sequence path of elt1 followed by elt2. |
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20 +--------------------+-------------------------------------------------+
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21 |elt1 | elt2 | A alternative path of elt1 or elt2 |
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22 | | (all possibilities are tried). |
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23 +--------------------+-------------------------------------------------+
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24 |elt* | A path that connects the subject and object |
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25 | | of the path by zero or more matches of elt. |
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26 +--------------------+-------------------------------------------------+
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27 |elt+ | A path that connects the subject and object |
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28 | | of the path by one or more matches of elt. |
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29 +--------------------+-------------------------------------------------+
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30 |elt? | A path that connects the subject and object |
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31 | | of the path by zero or one matches of elt. |
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32 +--------------------+-------------------------------------------------+
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33 |!iri or | Negated property set. An IRI which is not one of|
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34 |!(iri\ :sub:`1`\ | | iri\ :sub:`1`...iri\ :sub:`n`. |
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35 |... |iri\ :sub:`n`) | !iri is short for !(iri). |
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36 +--------------------+-------------------------------------------------+
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37 |!^iri or | Negated property set where the excluded matches |
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38 |!(^iri\ :sub:`1`\ | | are based on reversed path. That is, not one of |
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39 |... |^iri\ :sub:`n`)| iri\ :sub:`1`...iri\ :sub:`n` as reverse paths. |
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40 | | !^iri is short for !(^iri). |
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41 +--------------------+-------------------------------------------------+
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42 |!(iri\ :sub:`1`\ | | A combination of forward and reverse |
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43 |...|iri\ :sub:`j`\ || properties in a negated property set. |
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44 |^iri\ :sub:`j+1`\ | | |
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45 |... |^iri\ :sub:`n`)| |
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46 +--------------------+-------------------------------------------------+
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47 |(elt) | A group path elt, brackets control precedence. |
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48 +--------------------+-------------------------------------------------+
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49
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50 This module is used internally be the SPARQL engine, but they property paths
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51 can also be used to query RDFLib Graphs directly.
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52
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53 Where possible the SPARQL syntax is mapped to python operators, and property
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54 path objects can be constructed from existing URIRefs.
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55
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56 >>> from rdflib import Graph, Namespace
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57
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58 >>> foaf=Namespace('http://xmlns.com/foaf/0.1/')
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59
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60 >>> ~foaf.knows
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61 Path(~http://xmlns.com/foaf/0.1/knows)
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62
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63 >>> foaf.knows/foaf.name
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64 Path(http://xmlns.com/foaf/0.1/knows / http://xmlns.com/foaf/0.1/name)
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65
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66 >>> foaf.name|foaf.firstName
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67 Path(http://xmlns.com/foaf/0.1/name | http://xmlns.com/foaf/0.1/firstName)
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68
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69 Modifiers (?, *, +) are done using * (the multiplication operator) and
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70 the strings '*', '?', '+', also defined as constants in this file.
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71
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72 >>> foaf.knows*OneOrMore
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73 Path(http://xmlns.com/foaf/0.1/knows+)
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74
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75 The path objects can also be used with the normal graph methods.
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76
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77 First some example data:
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78
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79 >>> g=Graph()
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80
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81 >>> g=g.parse(data='''
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82 ... @prefix : <ex:> .
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83 ...
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84 ... :a :p1 :c ; :p2 :f .
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85 ... :c :p2 :e ; :p3 :g .
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86 ... :g :p3 :h ; :p2 :j .
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87 ... :h :p3 :a ; :p2 :g .
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88 ...
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89 ... :q :px :q .
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90 ...
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91 ... ''', format='n3') # doctest: +ELLIPSIS
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92
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93 >>> e=Namespace('ex:')
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94
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95 Graph contains:
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96 >>> (e.a, e.p1/e.p2, e.e) in g
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97 True
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98
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99 Graph generator functions, triples, subjects, objects, etc. :
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100
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101 >>> list(g.objects(e.c, (e.p3*OneOrMore)/e.p2)) # doctest: +NORMALIZE_WHITESPACE
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102 [rdflib.term.URIRef(%(u)s'ex:j'), rdflib.term.URIRef(%(u)s'ex:g'),
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103 rdflib.term.URIRef(%(u)s'ex:f')]
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104
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105 A more complete set of tests:
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106
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107 >>> list(evalPath(g, (None, e.p1/e.p2, None)))==[(e.a, e.e)]
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108 True
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109 >>> list(evalPath(g, (e.a, e.p1|e.p2, None)))==[(e.a,e.c), (e.a,e.f)]
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110 True
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111 >>> list(evalPath(g, (e.c, ~e.p1, None))) == [ (e.c, e.a) ]
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112 True
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113 >>> list(evalPath(g, (e.a, e.p1*ZeroOrOne, None))) == [(e.a, e.a), (e.a, e.c)]
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114 True
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115 >>> list(evalPath(g, (e.c, e.p3*OneOrMore, None))) == [
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116 ... (e.c, e.g), (e.c, e.h), (e.c, e.a)]
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117 True
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118 >>> list(evalPath(g, (e.c, e.p3*ZeroOrMore, None))) == [(e.c, e.c),
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119 ... (e.c, e.g), (e.c, e.h), (e.c, e.a)]
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120 True
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121 >>> list(evalPath(g, (e.a, -e.p1, None))) == [(e.a, e.f)]
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122 True
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123 >>> list(evalPath(g, (e.a, -(e.p1|e.p2), None))) == []
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124 True
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125 >>> list(evalPath(g, (e.g, -~e.p2, None))) == [(e.g, e.j)]
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126 True
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127 >>> list(evalPath(g, (e.e, ~(e.p1/e.p2), None))) == [(e.e, e.a)]
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128 True
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129 >>> list(evalPath(g, (e.a, e.p1/e.p3/e.p3, None))) == [(e.a, e.h)]
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130 True
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131
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132 >>> list(evalPath(g, (e.q, e.px*OneOrMore, None)))
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133 [(rdflib.term.URIRef(%(u)s'ex:q'), rdflib.term.URIRef(%(u)s'ex:q'))]
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134
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135 >>> list(evalPath(g, (None, e.p1|e.p2, e.c)))
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136 [(rdflib.term.URIRef(%(u)s'ex:a'), rdflib.term.URIRef(%(u)s'ex:c'))]
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137
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138 >>> list(evalPath(g, (None, ~e.p1, e.a))) == [ (e.c, e.a) ]
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139 True
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140 >>> list(evalPath(g, (None, e.p1*ZeroOrOne, e.c))) # doctest: +NORMALIZE_WHITESPACE
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141 [(rdflib.term.URIRef(%(u)s'ex:c'), rdflib.term.URIRef(%(u)s'ex:c')),
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142 (rdflib.term.URIRef(%(u)s'ex:a'), rdflib.term.URIRef(%(u)s'ex:c'))]
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143
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144 >>> list(evalPath(g, (None, e.p3*OneOrMore, e.a))) # doctest: +NORMALIZE_WHITESPACE
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145 [(rdflib.term.URIRef(%(u)s'ex:h'), rdflib.term.URIRef(%(u)s'ex:a')),
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146 (rdflib.term.URIRef(%(u)s'ex:g'), rdflib.term.URIRef(%(u)s'ex:a')),
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147 (rdflib.term.URIRef(%(u)s'ex:c'), rdflib.term.URIRef(%(u)s'ex:a'))]
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148
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149 >>> list(evalPath(g, (None, e.p3*ZeroOrMore, e.a))) # doctest: +NORMALIZE_WHITESPACE
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150 [(rdflib.term.URIRef(%(u)s'ex:a'), rdflib.term.URIRef(%(u)s'ex:a')),
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151 (rdflib.term.URIRef(%(u)s'ex:h'), rdflib.term.URIRef(%(u)s'ex:a')),
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152 (rdflib.term.URIRef(%(u)s'ex:g'), rdflib.term.URIRef(%(u)s'ex:a')),
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153 (rdflib.term.URIRef(%(u)s'ex:c'), rdflib.term.URIRef(%(u)s'ex:a'))]
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154
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155 >>> list(evalPath(g, (None, -e.p1, e.f))) == [(e.a, e.f)]
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156 True
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157 >>> list(evalPath(g, (None, -(e.p1|e.p2), e.c))) == []
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158 True
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159 >>> list(evalPath(g, (None, -~e.p2, e.j))) == [(e.g, e.j)]
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160 True
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161 >>> list(evalPath(g, (None, ~(e.p1/e.p2), e.a))) == [(e.e, e.a)]
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162 True
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163 >>> list(evalPath(g, (None, e.p1/e.p3/e.p3, e.h))) == [(e.a, e.h)]
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164 True
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165
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166 >>> list(evalPath(g, (e.q, e.px*OneOrMore, None)))
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167 [(rdflib.term.URIRef(%(u)s'ex:q'), rdflib.term.URIRef(%(u)s'ex:q'))]
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168
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169 >>> list(evalPath(g, (e.c, (e.p2|e.p3)*ZeroOrMore, e.j)))
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170 [(rdflib.term.URIRef(%(u)s'ex:c'), rdflib.term.URIRef(%(u)s'ex:j'))]
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171
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172 No vars specified:
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173
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174 >>> sorted(list(evalPath(g, (None, e.p3*OneOrMore, None)))) #doctest: +NORMALIZE_WHITESPACE
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175 [(rdflib.term.URIRef(%(u)s'ex:c'), rdflib.term.URIRef(%(u)s'ex:a')),
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176 (rdflib.term.URIRef(%(u)s'ex:c'), rdflib.term.URIRef(%(u)s'ex:g')),
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177 (rdflib.term.URIRef(%(u)s'ex:c'), rdflib.term.URIRef(%(u)s'ex:h')),
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178 (rdflib.term.URIRef(%(u)s'ex:g'), rdflib.term.URIRef(%(u)s'ex:a')),
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179 (rdflib.term.URIRef(%(u)s'ex:g'), rdflib.term.URIRef(%(u)s'ex:h')),
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180 (rdflib.term.URIRef(%(u)s'ex:h'), rdflib.term.URIRef(%(u)s'ex:a'))]
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181
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182 .. versionadded:: 4.0
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183
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184 """)
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185
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186
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187 from rdflib.term import URIRef, Node
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188
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189
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190 # property paths
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191
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192 ZeroOrMore = '*'
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193 OneOrMore = '+'
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194 ZeroOrOne = '?'
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195
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196
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197 class Path(object):
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198 def eval(self, graph, subj=None, obj=None):
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199 raise NotImplementedError()
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200
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201 def __hash__(self):
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202 return hash(repr(self))
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203
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204 def __eq__(self, other):
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205 return repr(self) == repr(other)
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206
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207 def __lt__(self, other):
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208 if not isinstance(other, (Path, Node)):
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209 raise TypeError('unorderable types: %s() < %s()' % (
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210 repr(self), repr(other)))
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211 return repr(self) < repr(other)
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212
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213 def __le__(self, other):
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214 if not isinstance(other, (Path, Node)):
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215 raise TypeError('unorderable types: %s() < %s()' % (
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216 repr(self), repr(other)))
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217 return repr(self) <= repr(other)
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218
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219 def __ne__(self, other):
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220 return not self == other
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221
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222 def __gt__(self, other):
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223 return not self <= other
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224
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225 def __ge__(self, other):
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226 return not self < other
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227
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228
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229 class InvPath(Path):
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230
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231 def __init__(self, arg):
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232 self.arg = arg
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233
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234 def eval(self, graph, subj=None, obj=None):
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235 for s, o in evalPath(graph, (obj, self.arg, subj)):
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236 yield o, s
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237
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parents:
diff changeset
238 def __repr__(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
239 return "Path(~%s)" % (self.arg,)
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parents:
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240
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
241 def n3(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
242 return '^%s' % self.arg.n3()
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parents:
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243
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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244
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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245 class SequencePath(Path):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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246 def __init__(self, *args):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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247 self.args = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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248 for a in args:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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249 if isinstance(a, SequencePath):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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250 self.args += a.args
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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251 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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252 self.args.append(a)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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253
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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254 def eval(self, graph, subj=None, obj=None):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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255 def _eval_seq(paths, subj, obj):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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256 if paths[1:]:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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257 for s, o in evalPath(graph, (subj, paths[0], None)):
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parents:
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258 for r in _eval_seq(paths[1:], o, obj):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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259 yield s, r[1]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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260
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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261 else:
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parents:
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262 for s, o in evalPath(graph, (subj, paths[0], obj)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
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263 yield s, o
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
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264
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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265 def _eval_seq_bw(paths, subj, obj):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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266 if paths[:-1]:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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267 for s, o in evalPath(graph, (None, paths[-1], obj)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
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268 for r in _eval_seq(paths[:-1], subj, s):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
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269 yield r[0], o
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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270
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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271 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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272 for s, o in evalPath(graph, (subj, paths[0], obj)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
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273 yield s, o
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
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274
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
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275 if subj:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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276 return _eval_seq(self.args, subj, obj)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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277 elif obj:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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278 return _eval_seq_bw(self.args, subj, obj)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
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279 else: # no vars bound, we can start anywhere
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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280 return _eval_seq(self.args, subj, obj)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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281
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
282 def __repr__(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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283 return "Path(%s)" % " / ".join(str(x) for x in self.args)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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284
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
285 def n3(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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286 return '/'.join(a.n3() for a in self.args)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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287
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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288
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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289 class AlternativePath(Path):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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290 def __init__(self, *args):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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291 self.args = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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292 for a in args:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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293 if isinstance(a, AlternativePath):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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294 self.args += a.args
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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295 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
296 self.args.append(a)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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297
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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298 def eval(self, graph, subj=None, obj=None):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
299 for x in self.args:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
300 for y in evalPath(graph, (subj, x, obj)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
301 yield y
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
302
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
303 def __repr__(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
304 return "Path(%s)" % " | ".join(str(x) for x in self.args)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
305
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
306 def n3(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
307 return '|'.join(a.n3() for a in self.args)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
308
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
309
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
310
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
311 class MulPath(Path):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
312 def __init__(self, path, mod):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
313 self.path = path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
314 self.mod = mod
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
315
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
316 if mod == ZeroOrOne:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
317 self.zero = True
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
318 self.more = False
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
319 elif mod == ZeroOrMore:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
320 self.zero = True
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
321 self.more = True
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
322 elif mod == OneOrMore:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
323 self.zero = False
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
324 self.more = True
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
325 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
326 raise Exception('Unknown modifier %s' % mod)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
327
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
328 def eval(self, graph, subj=None, obj=None, first=True):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
329 if self.zero and first:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
330 if subj and obj:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
331 if subj == obj:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
332 yield (subj, obj)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
333 elif subj:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
334 yield (subj, subj)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
335 elif obj:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
336 yield (obj, obj)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
337
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
338 def _fwd(subj=None, obj=None, seen=None):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
339 seen.add(subj)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
340
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
341 for s, o in evalPath(graph, (subj, self.path, None)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
342 if not obj or o == obj:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
343 yield s, o
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
344 if self.more:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
345 if o in seen:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
346 continue
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
347 for s2, o2 in _fwd(o, obj, seen):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
348 yield s, o2
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
349
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
350 def _bwd(subj=None, obj=None, seen=None):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
351 seen.add(obj)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
352
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
353 for s, o in evalPath(graph, (None, self.path, obj)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
354 if not subj or subj == s:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
355 yield s, o
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
356 if self.more:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
357 if s in seen:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
358 continue
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
359
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
360 for s2, o2 in _bwd(None, s, seen):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
361 yield s2, o
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
362
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
363 def _fwdbwd():
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
364 if self.zero:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
365 seen1 = set()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
366 # According to the spec, ALL nodes are possible solutions
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
367 # (even literals)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
368 # we cannot do this without going through ALL triples
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
369 # unless we keep an index of all terms somehow
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
370 # but lets just hope this query doesnt happen very often...
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
371 for s, o in graph.subject_objects(None):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
372 if s not in seen1:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
373 seen1.add(s)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
374 yield s, s
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
375 if o not in seen1:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
376 seen1.add(o)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
377 yield o, o
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
378
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
379 for s, o in evalPath(graph, (None, self.path, None)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
380 if not self.more:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
381 yield s, o
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
382 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
383 seen = set()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
384 f = list(_fwd(s, None, seen)) # cache or recompute?
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
385 for s3, o3 in _bwd(None, o, seen):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
386 for s2, o2 in f:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
387 yield s3, o2 # ?
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
388
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
389 done = set() # the spec does by defn. not allow duplicates
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
390 if subj:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
391 for x in _fwd(subj, obj, set()):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
392 if x not in done:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
393 done.add(x)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
394 yield x
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
395 elif obj:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
396 for x in _bwd(subj, obj, set()):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
397 if x not in done:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
398 done.add(x)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
399 yield x
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
400 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
401 for x in _fwdbwd():
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
402 if x not in done:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
403 done.add(x)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
404 yield x
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
405
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
406 def __repr__(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
407 return "Path(%s%s)" % (self.path, self.mod)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
408
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
409 def n3(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
410 return '%s%s' % (self.path, self.mod)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
411
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
412
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
413
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
414 class NegatedPath(Path):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
415 def __init__(self, arg):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
416 if isinstance(arg, (URIRef, InvPath)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
417 self.args = [arg]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
418 elif isinstance(arg, AlternativePath):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
419 self.args = arg.args
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
420 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
421 raise Exception(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
422 'Can only negate URIRefs, InvPaths or ' +
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
423 'AlternativePaths, not: %s' % (arg,))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
424
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
425 def eval(self, graph, subj=None, obj=None):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
426 for s, p, o in graph.triples((subj, None, obj)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
427 for a in self.args:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
428 if isinstance(a, URIRef):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
429 if p == a:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
430 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
431 elif isinstance(a, InvPath):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
432 if (o, a.arg, s) in graph:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
433 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
434 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
435 raise Exception('Invalid path in NegatedPath: %s' % a)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
436 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
437 yield s, o
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
438
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
439 def __repr__(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
440 return "Path(! %s)" % ",".join(str(x) for x in self.args)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
441
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
442 def n3(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
443 return '!(%s)' % ('|'.join(self.args))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
444
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
445
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
446 class PathList(list):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
447 pass
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
448
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
449
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
450 def path_alternative(self, other):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
451 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
452 alternative path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
453 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
454 if not isinstance(other, (URIRef, Path)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
455 raise Exception('Only URIRefs or Paths can be in paths!')
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
456 return AlternativePath(self, other)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
457
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
458
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
459 def path_sequence(self, other):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
460 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
461 sequence path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
462 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
463 if not isinstance(other, (URIRef, Path)):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
464 raise Exception('Only URIRefs or Paths can be in paths!')
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
465 return SequencePath(self, other)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
466
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
467
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
468 def evalPath(graph, t):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
469 return ((s, o) for s, p, o in graph.triples(t))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
470
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
471 def mul_path(p, mul):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
472 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
473 cardinality path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
474 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
475 return MulPath(p, mul)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
476
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
477
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
478 def inv_path(p):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
479 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
480 inverse path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
481 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
482 return InvPath(p)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
483
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
484
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
485 def neg_path(p):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
486 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
487 negated path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
488 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
489 return NegatedPath(p)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
490
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
491
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
492
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
493 if __name__ == '__main__':
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
494
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
495 import doctest
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
496 doctest.testmod()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
497 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
498 # monkey patch
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
499 # (these cannot be directly in terms.py
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
500 # as it would introduce circular imports)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
501
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
502 URIRef.__or__ = path_alternative
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
503 URIRef.__mul__ = mul_path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
504 URIRef.__invert__ = inv_path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
505 URIRef.__neg__ = neg_path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
506 URIRef.__truediv__ = path_sequence
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
507 if not PY3:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
508 URIRef.__div__ = path_sequence
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
509
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
510 Path.__invert__ = inv_path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
511 Path.__neg__ = neg_path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
512 Path.__mul__ = mul_path
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
513 Path.__or__ = path_alternative
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
514 Path.__truediv__ = path_sequence
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
515 if not PY3:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
516 Path.__div__ = path_sequence