MAINHACK

Viewing / Editing File: Gsml.py

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class GsmlHandler:
    # To be mixed in with something like HTMLParser.HTMLParser

    def handle_starttag(self, tag, attrs):
        self.stack.append(self.out)
        self.out = []
        if attrs:
            at = []
            for k, v in attrs:
                at.append(self.mod.node_of_taci(k, v))
            self.out.append(self.mod.node_of_taci('with', '', at))

    def handle_endtag(self, tag):
        node = self.mod.node_of_taci(tag, '', self.out)
        self.out = self.stack.pop()
        self.out.append(node)

    def handle_charref(self, name):
        if name[:1] == "x":
            char = int(name[1:], 16)
            name = '0'+name
        else:
            char = int(name)
        if 0 <= char < 128:
            char = chr(char)
            self.handle_data(char)
        else:
            self.out.append(self.mod.node_of_taci('char', name))

    def handle_entityref(self, name):
        if name not in self.mod.entitydefs:
            self.unknown_entityref(name)
        self.out.append(self.mod.node_of_taci('char', name))

    def unknown_entityref(self, name):
        raise SyntaxError('Unknown entity ref: %r' % name)

    def handle_data(self, data):
        # data = data.strip()
        if data.strip():
            self.out.extend(self.mod.nodes_of_text(data))

    def handle_comment(self, data):
        self.out.append(self.mod.node_of_taci('comment', data, (), 0))

    def handle_decl(self, decl):
        self.out.append(self.mod.node_of_taci('html_declaration', decl))

    def handle_pi(self, data):
        self.out.append(self.mod.node_of_taci('processing_instruction', data))


class _GLUECLAMP_:
    _imports_ = (
        '_root.html.parser:HTMLParser',
        '_parent.SpecNodes:node_of_taci',
        '_parent.SpecNodes:nodes_of_text',
        '_root.htmlentitydefs:entitydefs',
    )

    encoding = "iso-8859-1"

    def node_of_gsml(self, text):
        class Parser(GsmlHandler, self.HTMLParser):
            def __init__(self, mod):
                mod.HTMLParser.__init__(self)
                self.mod = mod
                self.out = []
                self.stack = []

        p = Parser(self)
        p.feed(text)
        p.close()
        if p.stack:
            raise SyntaxError('Missing end tag')
        node = self.node_of_taci('block', '', p.out, 0)
        return node

    def _test_main_(self):
        x = """
<!DOCTYPE html...>
This is an <em> emphasized </em> word.
See also <a href="guppy-pe.sf.net"> Guppy. </a>
Defined as <use_my_macro/>.

Handle char ref: &#100;.
Handle char ref: &lt;.

<!-- A comment -->

<?A processing instruction>

<namespace:tag />
        """

        node = self.node_of_gsml(x)
        # FIXME: Assert equals to something?
        print(node)
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