Engine for LaTeX songbooks http://www.patacrep.com
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"""Errors in song definition (syntax errors, and so on)"""
from patacrep.errors import SharedError
class SongError(SharedError):
"""Generic song error"""
# pylint: disable=too-few-public-methods
def __init__(self, song, message):
super().__init__()
self.song = song
self.message = message
def __str__(self):
return "{}: {}".format(self._human_song(), self.message)
def _human_song(self):
return "Datadir '{}', song '{}'".format(
self.song.datadir,
self.song.subpath,
)
@property
def __dict__(self):
parent = vars(super())
parent.update({
'datadir': self.song.datadir,
'subpath': self.song.subpath,
'message': self.message,
'full_message': str(self),
})
return parent
class SongSyntaxError(SongError):
"""Syntax error"""
# pylint: disable=too-few-public-methods
def __init__(self, song, line, message):
super().__init__(song, message)
#: Line of error. May be `None` if irrelevant.
self.line = line
def __str__(self):
if self.line is not None:
return "{}, line {}: {}".format(self._human_song(), self.line, self.message)
else:
return "{}: {}".format(self._human_song(), self.message)
@property
def __dict__(self):
parent = vars(super())
if self.line is not None:
parent.update({
'line': self.line,
})
return parent
class FileNotFound(SongError):
"""File not found error"""
def __init__(self, song, filename):
super().__init__(song, "File '{}' not found.".format(filename))
self.filename = filename
@property
def __dict__(self):
parent = vars(super())
parent.update({
'filename': self.filename,
})
return parent
class SongUnknownLanguage(SongError):
"""Song language is not known."""
def __init__(self, song, original, fallback, message):
super().__init__(song, message)
self.original = original
self.fallback = fallback
@property
def __dict__(self):
parent = vars(super())
parent.update({
'original': self.original,
'fallback': self.fallback,
})
return parent