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Revision 97

Added by Aaron Marcuse-Kubitza almost 13 years ago

xpath.py: Added support for negative attribute assertions with !

View differences:

xpath.py
10 10 
        self.name = name
11 11 
        self.value = value
12 12 
        self.is_attr = is_attr
13 
        self.is_positive = True
13 14 
        self.is_ptr = False
14 15 
        self.keys = []
15 16 
        self.attrs = []
......
17 18
18 19 
    def __repr__(self):
19 20 
        str_ = ''
21 
        if self.is_positive: str_ += '!'
20 22 
        if self.is_attr: str_ += '@'
21 23 
        str_ += self.name
22 24 
        if self.keys != []: str_ += repr(self.keys)
......
41 43 
    parser = Parser(str_)
42 44
43 45 
    def _path():
46 
        is_positive = not parser.str_('!')
47
44 48 
        tree = []
45 49 
        while True:
46 50 
            # Split path
......
77 81
78 82 
            if not parser.str_('/'): break
79 83
84 
        tree[0].is_positive = is_positive
85
86 
        # Value
80 87 
        if parser.str_('='):
81 88 
            if parser.str_('"'):
82 89 
                value = parser.re(r'[^"]*')
......
148 155 
            is_match = elem.value == None or xml_dom.value(child) == elem.value
149 156 
            for attr in elem.keys:
150 157 
                if not is_match: break
151 
                is_match = get(doc, attr, False, last_only, child) != None
158 
                is_match = (get(doc, attr, False, last_only, child) != None)\
159 
                == attr[0].is_positive
152 160 
            if is_match: node = child; break
153 161
154 162 
        # Create node
......
161 169 
            if elem.value != None: xml_dom.set_value(doc, node, elem.value)
162 170 
        if create:
163 171 
            for attr in elem.keys + elem.attrs:
164 
                get(doc, attr, create, last_only, node)
172 
                if attr[0].is_positive: get(doc, attr, create, last_only, node)
165 173
166 174 
        for branch in elem.other_branches:
167 175 
            branch = copy.deepcopy(branch)

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