示例#1
0
def songs_pyparsing(fh):
    r"""
    >>> import os
    >>> filename = os.path.dirname(__file__)
    >>> filename = os.path.join(filename, "data/Various-Pop.m3u")
    >>> with open(filename, "rt", encoding="utf8") as fh:
    ...     songs = songs_pyparsing(fh)
    >>> songs[0].title, songs[0].seconds, songs[0].filename
    ('Various - Two Tribes', 236, 'Various\\Frankie Goes To Hollywood\\02-Two Tribes.ogg')
    >>> songs[-1].title, songs[-1].seconds, songs[-1].filename
    ('The Police - Walking On The Moon', 303, 'Various\\Sting & The Police 1997\\06-Walking On The Moon.ogg')
    >>> lines = []
    >>> lines.append("#EXTM3U")
    >>> lines.append("#EXTINF:140,The Beatles - Love Me Do")
    >>> lines.append("Beatles\\Greatest Hits\\01-Love Me Do.ogg")
    >>> lines.append("#EXTINF:-1,The Beatles - From Me To You")
    >>> lines.append("Beatles\\Greatest Hits\\02-From Me To You.ogg")
    >>> import io
    >>> data = io.StringIO("\n".join(lines))
    >>> songs = songs_ply(data)
    >>> len(songs) == 2
    True
    >>> songs[0].title, songs[0].seconds
    ('The Beatles - Love Me Do', 140)
    >>> songs[1].title, songs[1].seconds
    ('The Beatles - From Me To You', -1)
    """

    def add_song(tokens):
        songs.append(Song(tokens.title, tokens.seconds,
                          tokens.filename))
        #songs.append(Song(**tokens.asDict()))

    songs = []
    title = restOfLine("title")
    filename = restOfLine("filename")
    seconds = Combine(Optional("-") + Word(nums)).setParseAction(
            lambda tokens: int(tokens[0]))("seconds")
    info = Suppress("#EXTINF:") + seconds + Suppress(",") + title
    entry = info + LineEnd() + filename + LineEnd()
    entry.setParseAction(add_song)
    parser = Suppress("#EXTM3U") + OneOrMore(entry)
    try:
        parser.parseFile(fh)
    except ParseException as err:
        print("parse error: {0}".format(err))
        return []
    return songs
示例#2
0
def pyparse_m3u(file):
    def add_song(tokens):
        new_song = M3U_SONG(tokens.title, tokens.seconds, tokens.filename)
        song_list.append(new_song)

    song_list = []
    title = restOfLine('title')
    filename = restOfLine('filename')
    seconds = Combine(Optional('-') + Word(nums)).setParseAction(
        lambda tokens: int(tokens[0]))('seconds')
    sec_title = Suppress('#EXTINF:') + seconds + Suppress(',') + title
    info = LineEnd() + sec_title + LineEnd() + filename
    info.addParseAction(add_song)
    parser = Suppress('#EXTM3U') + OneOrMore(info)

    try:
        parser.parseFile(file)
    except ParseException as parse_err:
        print('Parsing error: {}', parse_err)
        return []
    return song_list