def run_format_func(funcname,
arguments,
m_audio,
s_audio=None,
extra=None,
state=None):
'''Runs the function function using the arguments specified from pudlestuff.function.
Arguments:
funcname -- String with the function name. Looked up using the
dictionary pudlestuff.function.functions
arguments -- List of arguments to pass to the function. Patterns
should not be evaluated. They'll be evaluated here.
m_audio -- Audio file containg multiple multiple values per key.
Eg. {'artist': [u'Artist1': 'Artist2']}
Keyword Arguments
s_audio -- Same as m_audio, but containing strings as values.
Generated on each run unless also passed.
extra -- Dictionary containing extra fields that are to be used
when matching fields.
state -- Dictionary that hold state. Like {'__count': 15}.
Used by some functions in puddlestuff.functions
'''
#Get function
try:
if isinstance(funcname, basestring):
func = functions[funcname]
else:
func = funcname
except KeyError:
raise ParseError(
SYNTAX_ERROR.arg(funcname).arg(
translate('Defaults', 'function does not exist.')))
extra = {} if extra is None else extra
s_audio = stringtags(m_audio) if s_audio is None else s_audio
reserved = {'tags': s_audio, 'm_tags': m_audio, 'state': state}
dicts = [s_audio, extra, state]
topass = get_function_arguments(funcname, func, arguments, reserved, True,
*dicts)
try:
ret = func(**topass)
if ret is None:
return u''
return ret
except TypeError, e:
message = SYNTAX_ERROR.arg(funcname)
message = message.arg(arglen_error(e, topass, func, False))
raise ParseError(message)
def run_format_func(funcname, arguments, m_audio, s_audio=None, extra=None,
state=None):
'''Runs the function function using the arguments specified from pudlestuff.function.
Arguments:
funcname -- String with the function name. Looked up using the
dictionary pudlestuff.function.functions
arguments -- List of arguments to pass to the function. Patterns
should not be evaluated. They'll be evaluated here.
m_audio -- Audio file containg multiple multiple values per key.
Eg. {'artist': [u'Artist1': 'Artist2']}
Keyword Arguments
s_audio -- Same as m_audio, but containing strings as values.
Generated on each run unless also passed.
extra -- Dictionary containing extra fields that are to be used
when matching fields.
state -- Dictionary that hold state. Like {'__count': 15}.
Used by some functions in puddlestuff.functions
'''
#Get function
try:
if isinstance(funcname, basestring):
func = functions[funcname]
else:
func = funcname
except KeyError:
raise ParseError(SYNTAX_ERROR.arg(funcname).arg(
translate('Defaults', 'function does not exist.')))
extra = {} if extra is None else extra
s_audio = stringtags(m_audio) if s_audio is None else s_audio
reserved = {'tags': s_audio, 'm_tags': m_audio, 'state': state}
dicts = [s_audio, extra, state]
topass = get_function_arguments(funcname, func, arguments,
reserved, True, *dicts)
try:
ret = func(**topass)
if ret is None:
return u''
return ret
except TypeError, e:
message = SYNTAX_ERROR.arg(funcname)
message = message.arg(arglen_error(e, topass, func, False))
raise ParseError(message)
def parsefunc(s,
m_audio,
s_audio=None,
state=None,
extra=None,
ret_i=False,
path_sep=None):
"""Parses format strings. Returns the parsed string.
Arguments
---------
s -- *Unicode* format string. Eg. $replace(%artist%, name, surname)
m_audio -- Audio file containg multiple multiple values per key.
Eg. {'artist': [u'Artist1': 'Artist2']}
Keyword Arguments
s_audio -- Same as m_audio, but containing strings as values.
Generated on each run unless also passed.
extra -- Dictionary containing extra fields that are to be used
when matching fields.
state -- Dictionary that hold state. Like {'__count': 15}.
Used by some functions in puddlestuff.functions
>>> audio = {'artist': [u'Artist1'], 'track':u'10'}
>>> parsefunc(u'%track% - %artist%', audio)
Artist1 - 10
>>> state = {'__count': u'5'}
>>> parsefunc(u'$num(%track%, 2)/$num(%__count%, 2). %artist%', audio,
... state = state)
u'05/05. Artist1'
"""
#Yes I know this is a big ass function...but it works and I can't
#see a way to split it without making it complicated.
tokens = []
token = []
#List containing a function with it's arguments
#Will look like ['replace', arg1, arg2, arg3]
#functions get evaluated as soon as closing bracket found.
func = []
#Flag determining if current within a function. Used for making comma's
#significant
in_func = False
in_quote = False
#field_open == -1 if not current in the middle of processing a field
#eg. %artist%. Otherwise contains the index in s that the field started.
field_open = -1
#Determine if next char should be escaped.
escape = False
s_audio = stringtags(m_audio) if s_audio is None else s_audio
state = {} if state is None else state
tags = s_audio.copy()
tags.update(state)
tags.update(extra if extra is not None else {})
escape_chars = set('()$%\\,')
br_error = translate('Errors', 'No closing bracket found.')
paths = []
i = 0
while 1:
try:
c = s[i]
except IndexError: # Parsing's done.
if in_func:
raise ParseError(SYNTAX_ERROR.arg(func[0]).arg(br_error))
if token:
tokens.append(replacevars(u''.join(token), tags))
break
if c == u'"' and not escape:
if in_func:
token.append(c)
in_quote = not in_quote
elif c == u'"' and escape and in_func:
token.append(u'\\"')
i += 1
escape = False
continue
elif escape:
token.append(c)
escape = False
i += 1
continue
elif in_quote:
token.append(c)
elif c == u'\\' and not escape:
escape = True
i += 1
try:
next_char = s[i]
except IndexError:
next_char = None
if not in_func or (next_char not in escape_chars):
token.append(c)
escape = False
continue
elif c == u'$' and not (escape or (field_open >= 0)):
func_name = re.search(u'^\$(\w+)\(', s[i:])
if not func_name:
token.append(c)
i += 1
continue
if in_func:
func_parsed, offset = parsefunc(s[i:], m_audio, s_audio, state,
extra, True)
token.append(func_parsed)
i += offset + 1
continue
tokens.append(replacevars(u''.join(token), tags))
token = []
func = []
func_name = func_name.groups(0)[0]
func.append(func_name)
in_func = True
i += len(func_name) + 1
elif in_func and not in_quote and not token and c in whitespace:
'just increment counter'
elif c == u',' and in_func and not in_quote:
func.append(u''.join(token))
token = []
elif c == u')' and in_func:
in_func = False
if token or s[i - 1] == u',':
func.append(u''.join(token))
func_parsed = run_format_func(func[0],
func[1:],
m_audio,
s_audio,
state=state,
extra=extra)
if ret_i:
return func_parsed, i
tokens.append(func_parsed)
token = []
else:
token.append(c)
if path_sep and c == path_sep and not in_func:
paths.append(
len(u''.join(tokens) +
replacevars(u''.join(token), tags)) - 1)
escape = False
i += 1
if path_sep and not ret_i:
return paths, u''.join(tokens)
else:
return u''.join(tokens)
reserved = {'tags': s_audio, 'm_tags': m_audio, 'state': state}
dicts = [s_audio, extra, state]
topass = get_function_arguments(funcname, func, arguments, reserved, True,
*dicts)
try:
ret = func(**topass)
if ret is None:
return u''
return ret
except TypeError, e:
message = SYNTAX_ERROR.arg(funcname)
message = message.arg(arglen_error(e, topass, func, False))
raise ParseError(message)
except FuncError, e:
message = SYNTAX_ERROR.arg(funcname).arg(e.message)
raise ParseError(message)
def parsefunc(s,
m_audio,
s_audio=None,
state=None,
extra=None,
ret_i=False,
path_sep=None):
"""Parses format strings. Returns the parsed string.
Arguments
---------
s -- *Unicode* format string. Eg. $replace(%artist%, name, surname)
def parsefunc(s, m_audio, s_audio=None, state=None, extra=None, ret_i=False, path_sep=None):
"""Parses format strings. Returns the parsed string.
Arguments
---------
s -- *Unicode* format string. Eg. $replace(%artist%, name, surname)
m_audio -- Audio file containg multiple multiple values per key.
Eg. {'artist': [u'Artist1': 'Artist2']}
Keyword Arguments
s_audio -- Same as m_audio, but containing strings as values.
Generated on each run unless also passed.
extra -- Dictionary containing extra fields that are to be used
when matching fields.
state -- Dictionary that hold state. Like {'__count': 15}.
Used by some functions in puddlestuff.functions
>>> audio = {'artist': [u'Artist1'], 'track':u'10'}
>>> parsefunc(u'%track% - %artist%', audio)
Artist1 - 10
>>> state = {'__count': u'5'}
>>> parsefunc(u'$num(%track%, 2)/$num(%__count%, 2). %artist%', audio,
... state = state)
u'05/05. Artist1'
"""
#Yes I know this is a big ass function...but it works and I can't
#see a way to split it without making it complicated.
tokens = []
token = []
#List containing a function with it's arguments
#Will look like ['replace', arg1, arg2, arg3]
#functions get evaluated as soon as closing bracket found.
func = []
#Flag determining if current within a function. Used for making comma's
#significant
in_func = False
in_quote = False
#field_open == -1 if not current in the middle of processing a field
#eg. %artist%. Otherwise contains the index in s that the field started.
field_open = -1
#Determine if next char should be escaped.
escape = False
s_audio = stringtags(m_audio) if s_audio is None else s_audio
state = {} if state is None else state
tags = s_audio.copy()
tags.update(state)
tags.update(extra if extra is not None else {})
escape_chars = set('()$%\\,')
br_error = translate('Errors', 'No closing bracket found.')
paths = []
i = 0
while 1:
try:
c = s[i]
except IndexError: # Parsing's done.
if in_func:
raise ParseError(SYNTAX_ERROR.arg(func[0]).arg(br_error))
if token:
tokens.append(replacevars(u''.join(token), tags))
break
if c == u'"' and not escape:
if in_func:
token.append(c)
in_quote = not in_quote
elif c == u'"' and escape and in_func:
token.append(u'\\"')
i += 1
escape = False
continue
elif escape:
token.append(c)
escape = False
i += 1
continue
elif in_quote:
token.append(c)
elif c == u'\\' and not escape:
escape = True
i += 1
try:
next_char = s[i]
except IndexError:
next_char = None
if not in_func or (next_char not in escape_chars):
token.append(c)
escape = False
continue
elif c == u'$' and not (escape or (field_open >= 0)):
func_name = re.search(u'^\$(\w+)\(', s[i:])
if not func_name:
token.append(c)
i += 1
continue
if in_func:
func_parsed, offset = parsefunc(s[i:], m_audio, s_audio, state, extra, True)
token.append(func_parsed)
i += offset + 1
continue
tokens.append(replacevars(u''.join(token), tags))
token = []
func = []
func_name = func_name.groups(0)[0]
func.append(func_name)
in_func = True
i += len(func_name) + 1
elif in_func and not in_quote and not token and c in whitespace:
'just increment counter'
elif c == u',' and in_func and not in_quote:
func.append(u''.join(token))
token = []
elif c == u')' and in_func:
in_func = False
if token or s[i-1] == u',':
func.append(u''.join(token))
func_parsed = run_format_func(func[0], func[1:], m_audio, s_audio)
if ret_i:
return func_parsed, i
tokens.append(func_parsed)
token = []
else:
token.append(c)
if path_sep and c == path_sep and not in_func:
paths.append(len(u''.join(tokens) + replacevars(u''.join(token), tags)) - 1)
escape = False
i += 1
if path_sep and not ret_i:
return paths, u''.join(tokens)
else:
return u''.join(tokens)
reserved = {'tags': s_audio, 'm_tags': m_audio, 'state': state}
dicts = [s_audio, extra, state]
topass = get_function_arguments(funcname, func, arguments,
reserved, True, *dicts)
try:
ret = func(**topass)
if ret is None:
return u''
return ret
except TypeError, e:
message = SYNTAX_ERROR.arg(funcname)
message = message.arg(arglen_error(e, topass, func, False))
raise ParseError(message)
except FuncError, e:
message = SYNTAX_ERROR.arg(funcname).arg(e.message)
raise ParseError(message)
def parsefunc(s, m_audio, s_audio=None, state=None, extra=None, ret_i=False, path_sep=None):
"""Parses format strings. Returns the parsed string.
Arguments
---------
s -- *Unicode* format string. Eg. $replace(%artist%, name, surname)
m_audio -- Audio file containg multiple multiple values per key.
Eg. {'artist': [u'Artist1': 'Artist2']}
Keyword Arguments
s_audio -- Same as m_audio, but containing strings as values.
Generated on each run unless also passed.
extra -- Dictionary containing extra fields that are to be used