import color, mode2
from lex2 import Grammar, PatternRule, RegionRule

class OpenTagGrammar(Grammar):
    rules = [
        RegionRule(name=r'string', start=r'(?P<tag>["\'])', grammar=Grammar(), end=r'%(tag)s'),
        PatternRule(name=r'namespace', pattern=r'[a-zA-Z_]+:'),
        PatternRule(name=r'attrname', pattern=r'[^ =>\n]+(?==)'),
        PatternRule(name=r'name', pattern=r'[^ =>\n]+'),
    ]

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

class BDSGrammar(Grammar):
    rules = [
        RegionRule(name=r'comment', start=r'<!--', grammar=Grammar(), end=r'-->'),
        RegionRule(name=r'opentag', start=r'<', grammar=OpenTagGrammar(), end=r'/?>'),
        PatternRule(name=r'closetag', pattern=r'< */ *[ =>\n]+ *>'),
        PatternRule(name=r'delimiter', pattern=r'[\[\]\{\}\(\),\?:]'),
        PatternRule(name=r'derived', pattern=r'(?:FM|CD|FS|FM|TA)[0-9]{3}-[0-9]{3}-[0-9]{3}'),
        PatternRule(name=r'question', pattern=r'GQ[0-9]{3}-[0-9]{3}-[0-9]{3}:MQ[0-9]{3}-[0-9]{3}-[0-9]{3}'),
        PatternRule(name=r'bdsfunc', pattern=r'[A-Z_][A-Z0-9_]+(?= *\()'),
        PatternRule(name=r'perlfunc', pattern=r'[a-zA-Z_][a-zA-Z0-9_]+(?= *\()'),
        PatternRule(name=r'misquoted', pattern=r"'[A-Z]{2}[0-9]{3}-[0-9]{3}-[0-9]{3}(?::[A-Z]{2}[0-9]{3}-[0-9]{3}-[0-9]{3})?'"),
        PatternRule(name=r'misquoted', pattern=r'"[A-Z]{2}[0-9]{3}-[0-9]{3}-[0-9]{3}(?::[A-Z]{2}[0-9]{3}-[0-9]{3}-[0-9]{3})?"'),
        RegionRule(name=r'string', start='"', grammar=StringGrammar(), end='"'),
        RegionRule(name=r'string', start="'", grammar=Grammar(), end="'"),
        PatternRule(name=r'operator', pattern=r'(?:&gt;=|&lt;=|&gt;|&lt;|==|&amp;&amp;|\|\||eq|ne)'),
    ]

class BDS(mode2.Fundamental):
    grammar    = BDSGrammar
    opentoken  = 'delimiter'
    opentags   = {'(': ')', '[': ']', '{': '}'}
    closetoken = 'delimiter'
    closetags  = {')': '(', ']': '[', '}': '{'}
    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.start':        color.build('red', 'default'),
            'comment.null':         color.build('red', 'default'),
            'comment.end':          color.build('red', 'default'),
            'opentag.start':        color.build('default', 'default'),
            'opentag.namespace':    color.build('magenta', 'default'),
            'opentag.name':         color.build('blue', 'default'),
            'opentag.attrname':     color.build('blue', 'default'),
            'opentag.string.start': color.build('cyan', 'default'),
            'opentag.string.null':  color.build('cyan', 'default'),
            'opentag.string.end':   color.build('cyan', 'default'),
            'opentag.end':          color.build('default', 'default'),
            'string.start':         color.build('green', 'default'),
            'string.octal':         color.build('magenta', 'default'),
            'string.escaped':       color.build('magenta', 'default'),
            'string.null':          color.build('green', 'default'),
            'string.end':           color.build('green', 'default'),
            'derived':              color.build('yellow', 'default'),
            'question':             color.build('yellow', 'default'),
            'misquoted':            color.build('yellow', 'red'),
            'bdsfunc':              color.build('magenta', 'default'),
            'perlfunc':             color.build('magenta', 'default'),
            'operator':             color.build('magenta', 'default'),
        }
    def name(self):
        return "BDS"