import color, mode2
from lex3 import Grammar, PatternRule, NocasePatternRule, RegionRule, NocaseRegionRule
from point2 import Point

class StringGrammar(Grammar):
    rules = [
        PatternRule(r'octal', r'\\[0-7]{3}'),
        PatternRule(r'escaped', r'\\.'),
    ]

class KeywordGrammar(Grammar):
    rules = [
        PatternRule(r'octal', r'\\[0-7]{3}'),
        PatternRule(r'escaped', r'\\.'),
        RegionRule('string', "'", StringGrammar, r"'"),
        RegionRule('string', '"', StringGrammar, r'"'),
    ]

class CSSGrammar(Grammar):
    rules = [
        RegionRule(r'comment', '/\*', Grammar, '\*/'),
        RegionRule(r'htmlcomment', '<!--', Grammar, '-->'),
        NocasePatternRule(r'dimension', r'[+-]?(?:[0-9]+|[0-9]*\.[0-9]+)[-a-z_][-a-z0-9_]*'),
        NocasePatternRule(r'percentage', r'[+-]?(?:[0-9]+|[0-9]*\.[0-9]+)%%'),
        NocasePatternRule(r'length', r'[+-]?(?:[0-9]+|[0-9]*\.[0-9]+)(?:em|ex|px|in|cm|mm|pt|pc)'),
        NocasePatternRule(r'hash', r'#[-a-z0-9_]+'),
        NocasePatternRule(r'real', r'[+-]?[0-9]*\.[0-9]+'),
        NocasePatternRule(r'int', r'[+-]?[0-9]+'),
        NocasePatternRule(r'rule', r'@(?:page|media|import)'),
        NocasePatternRule(r'color', r'(?:aqua|black|blue|fuchsia|gray|green|lime|maroon|navy|olive|orange|purple|red|silver|teal|white|yellow|#[0-9]{6}|#[0-9]{3})'),

        NocasePatternRule(r'keyword', r'(?:url|rgb|counter)'),
        NocaseRegionRule(r'keyword', '(?:(?<=url)|(?<=rgb)|(?<=counter))\(', KeywordGrammar, '\)'),

        NocasePatternRule(r'label', r"\.?[-a-zA-Z0-9_]+(?= *{)"),

        NocasePatternRule(r'ident', r"-?[a-z_][-a-z0-9_]*"),
        NocasePatternRule(r'name', r"[-a-z0-9_]+"),
        NocasePatternRule(r'delimiter', r'[:;,{}()\[\]]|~=|\|=|='),
        RegionRule(r'string', "'", StringGrammar, r"'"),
        RegionRule(r'string', '"', StringGrammar, r'"'),
    ]

class CSS(mode2.Fundamental):
    grammar = CSSGrammar
    def __init__(self, w):
        mode2.Fundamental.__init__(self, w)
        self.add_bindings('close-paren', (')',))
        self.add_bindings('close-brace', ('}',))
        self.add_bindings('close-bracket', (']',))
        self.colors = {
            'comment':       color.build('red', 'default'),
            'comment.start': color.build('red', 'default'),
            'comment.null':  color.build('red', 'default'),
            'comment.end':   color.build('red', 'default'),

            'htmlcomment':       color.build('red', 'default'),
            'htmlcomment.start': color.build('red', 'default'),
            'htmlcomment.null':  color.build('red', 'default'),
            'htmlcomment.end':   color.build('red', 'default'),

            'dimension':  color.build('magenta', 'default'),
            'percentage': color.build('magenta', 'default'),
            'length':     color.build('magenta', 'default'),
            'real':       color.build('magenta', 'default'),
            'int':        color.build('magenta', 'default'),
            'color':      color.build('magenta', 'default'),

            'hash':    color.build('cyan', 'default'),
            'label':   color.build('cyan', 'default'),
            'rule':    color.build('cyan', 'default'),
            'keyword': color.build('cyan', 'default'),

            'ident': color.build('default', 'default'),
            'name':  color.build('default', 'default'),

            'delimiter': color.build('default', 'default'),

            'keyword':         color.build('cyan', 'default'),
            'keyword.start':   color.build('default', 'default'),
            'keyword.null':    color.build('cyan', 'default'),
            'keyword.octal':   color.build('magenta', 'default'),
            'keyword.escaped': color.build('magenta', 'default'),
            'keyword.end':     color.build('default', 'default'),

            'string.start':   color.build('green', 'default'),
            'string.null':    color.build('green', 'default'),
            'string.octal':   color.build('magenta', 'default'),
            'string.escaped': color.build('magenta', 'default'),
            'string.end':     color.build('green', 'default'),
        }
    def name(self):
        return "Javascript"