Class TaggedString

pattern/text/tree.py:1337–1344

# This is a fallback if for some reason we fail to import MBSP.TokenString,
# e.g., when tree.py is part of another project.
class TaggedString(unicode):
    def __new__(cls, string, tags=["word"], language="en"):
        if isinstance(string, unicode) and hasattr(string, "tags"): 
            tags, language = string.tags, getattr(string, "language", language)
        s = unicode.__new__(cls, string)
        s.tags = list(tags)
        s.language = language
        return s

def parse_string(xml):
    """ Returns a slash-formatted string from the given XML representation.