pmacs3/mode_xml.py

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

class OpenTagGrammar(Grammar):
    rules = [
        RegionRule(r'string', r'"', Grammar, r'"'),
        RegionRule(r'string', r"'", Grammar, r"'"),
        PatternRule(r'namespace', r'[a-zA-Z_]+:'),
        PatternRule(r'attrname', r'[^ =>\n]+(?==)'),
        PatternRule(r'name', r'[^ =>\n]+'),
    ]

class XMLGrammar(Grammar):
    rules = [
        RegionRule(r'comment', r'<!--', Grammar, r'-->'),
        RegionRule(r'opentag', r'<', OpenTagGrammar, r'/?>'),
        PatternRule(r'closetag', r'< */ *[ =>\n]+ *>'),
    ]

class XML(mode2.Fundamental):
    grammar = XMLGrammar
    def __init__(self, w):
        mode2.Fundamental.__init__(self, w)
        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('cyan', 'default'),
            'opentag.string.start': color.build('green', 'default'),
            'opentag.string.null':  color.build('green', 'default'),
            'opentag.string.end':   color.build('green', 'default'),
            'opentag.end':          color.build('default', 'default'),
        }
    def name(self):
        return "XML"