def parse_meta(self, lines):
self.meta = OrderedDict()
for key, val in self.keyvalues(lines):
lang = None
m = re.match(r"(.*)\[(.*)\]", key)
if m:
key = m.group(1)
lang = m.group(2)
if key not in self.meta:
self.meta[key] = MultiString()
self.meta[key][lang] = val
def parse_twolevel(self, lines):
inner = None
for line in lines:
if not line:
continue
if line[0] == "{":
if line[-1] != "}":
raise ParseError("Expected {...} (%s)" % line)
if inner is not None:
yield name, inner
name = line[1:-1]
inner = OrderedDict()
continue
if inner is None:
raise ParseError("Expected {...} (%s)" % line)
if "=" not in line:
raise ParseError("Expected key=value format (%s)" % line)
key, val = line.split("=", 1)
inner[key] = val
if inner is not None:
yield name, inner
def parse_variants(self, lines):
self.variants = OrderedDict()
for name, data in self.parse_twolevel(lines):
self.variants[name] = Variant(data)
def parse_styles(self, lines):
self.styles = OrderedDict()
for name, data in self.parse_twolevel(lines):
self.styles[name] = Style(data)
def parse_formats(self, lines):
self.formats = OrderedDict()
for tag, fmt in self.keyvalues(lines):
if fmt not in FORMATS:
raise ParseError("Unknown format %s" % fmt)
self.formats[tag] = FORMATS[fmt]
def parse_song(self, lines):
self.song = OrderedDict()
for key, val in self.keyvalues(lines):
self.song[key] = val
def __init__(self, filename=None, ignore_steps=False):
parsers = {
"Meta": self.parse_meta,
"Song": self.parse_song,
"Timing": self.parse_timing,
"Formats": self.parse_formats,
"Styles": self.parse_styles,
"Variants": self.parse_variants,
"Lyrics": self.parse_lyrics,
}
self.ignore_steps = ignore_steps
self.pathbase = os.path.dirname(filename) if filename else None
section = None
lines = []
self.meta = None
self.song = None
self.timing = None
self.formats = None
self.styles = None
self.variants = None
self.compounds = None
self.fake_time = 0
self.line = 0
self.section_line = 0
if not filename:
self.meta = OrderedDict()
self.song = OrderedDict()
self.timing = BeatCounter()
self.formats = OrderedDict()
self.styles = OrderedDict()
self.variants = OrderedDict()
self.compounds = []
return
for line in codecs.open(filename, encoding='utf-8', mode='r'):
self.line += 1
line = line.replace("\n","").replace("\r","")
if line.startswith("#"):
continue
if section is None:
if not line:
continue
if line[0] != "[" or line[-1] != "]":
raise ParseError("Expected section header")
section = line[1:-1]
self.section_line = self.line
continue
if line and line[0] == "[" and line[-1] == "]":
if section not in parsers:
raise ParseError("Unknown section %s" % section)
parsers[section](lines)
lines = []
section = line[1:-1]
self.section_line = self.line
else:
lines.append(line)
if section is not None:
parsers[section](lines)
if self.variants and self.styles:
for variant in self.variants.values():
variant.load_tags(self.styles)
