import color, mode2

from point2 import Point
from lex3 import Grammar, PatternRule, RegionRule

class MetadataGrammar(Grammar):
    rules = [
        PatternRule(r'username', r'[a-zA-Z0-9_]+'),
    ]

class BlameGrammar(Grammar):
    rules = [
        RegionRule(r'metadata', r'^[0-9\.]+', MetadataGrammar, r'[0-9]{4}-[0-9]{2}-[0-9]{2}'),
        PatternRule(r'data', r'.+$'),
    ]

class Blame(mode2.Fundamental):
    grammar = BlameGrammar
    def __init__(self, w):
        mode2.Fundamental.__init__(self, w)
        self.colors = {
            'metadata.start':    color.build('blue', 'default', 'bold'),
            'metadata.username': color.build('cyan', 'default', 'bold'),
            'metadata.end':      color.build('green', 'default', 'bold'),
        }
    def name(self):
        return "Blame"