import color, mode
from lex import Grammar, PatternRule, RegionRule
from mode.xml import TagGrammar
from mode.javascript import JavascriptGrammar, Javascript

class HTMLGrammar(Grammar):
    rules = [
        # TODO: how does cdata work again?
        RegionRule(r'comment', r'<!--', Grammar, r'-->'),
        # BUG: not all scripts are javascript... but, dynamically choosing a
        # grammar based on the 'type' attribute (which may be on a different
        # line) could be pretty hairy.
        RegionRule(r'script', r'<(?=script[^a-zA-Z0-9_])', TagGrammar, r'>', JavascriptGrammar, r'</(?=script>)', TagGrammar, r'>'),
        RegionRule(r'tag', r'</?', TagGrammar, r'/?>'),
    ]

class HTML(mode.Fundamental):
    modename   = 'HTML'
    extensions = ['.html', '.htm', '.shtml', '.shtm', '.xhtml']
    grammar    = HTMLGrammar
    colors     = {
        'comment.start':        ('red', 'default'),
        'comment.null':         ('red', 'default'),
        'comment.end':          ('red', 'default'),

        'script.start':        ('default', 'default'),
        'script.namespace':    ('magenta', 'default'),
        'script.name':         ('blue', 'default'),
        'script.attrname':     ('cyan', 'default'),
        'script.string.start': ('green', 'default'),
        'script.string.null':  ('green', 'default'),
        'script.string.end':   ('green', 'default'),
        'script.end':          ('default', 'default'),

        'tag.start':        ('default', 'default'),
        'tag.namespace':    ('magenta', 'default'),
        'tag.name':         ('blue', 'default'),
        'tag.attrname':     ('cyan', 'default'),
        'tag.string.start': ('green', 'default'),
        'tag.string.null':  ('green', 'default'),
        'tag.string.end':   ('green', 'default'),
        'tag.end':          ('default', 'default'),
    }
    colors.update(Javascript.colors)
    def __init__(self, w):
        mode.Fundamental.__init__(self, w)
        self.add_bindings('close-paren', (')',))
        self.add_bindings('close-brace', ('}',))
        self.add_bindings('close-bracket', (']',))

install = HTML.install