def apply_observing_policy(self):
"""register the object with the observer"""
self.observer = PollyObserver()
self.observer.register(self)
def apply_observing_policy(self):
"""register the object with the observer"""
self.observer = PollyObserver()
self.observer.register(self)
class Parser(Observable):
filename = None
content = None
parser = None
def __init__(self, *args, **kwargs):
super(Parser, self).__init__(*args, **kwargs)
self.parser = LineParser()
self.apply_observing_policy()
def apply_observing_policy(self):
"""register the object with the observer"""
self.observer = PollyObserver()
self.observer.register(self)
def load(self, filename):
"""Loads a configuration file in the parser"""
self.filename = filename
file = open(filename, 'r')
self.content = file.readlines()
file.close()
return self.content
def dump_values(self):
"""Dumps every directive/value into a key/value dictionary. Newer
keys override older ones"""
dict = {}
for line in self.content:
key = self.parser.get_directive(line)
if key:
try:
value = self.parser.get_value(line)
dict[key] = value
except:
dict[key] = "#ERROR"
return dict
def get_value(self, name):
line = self.get_directive(name)
if line == None: return None
return self.parser.get_value(line)
def set_value(self, name, value):
idx = self._get_last_directive_idx(name)
if idx == None:
idx = self._last_line_idx()
line = name + "\t" + self.parser.value_escape(value) + "\n"
self.insert_line(self._last_line_idx(), line)
else:
line = self.get_line(idx)
line = self.parser.change_value(line, value)
self.set_line(idx, line)
def remove_value(self, name):
idx = self._get_last_directive_idx(name)
if idx:
self.remove_line(idx)
return True
return False
def get_directive(self, name):
idx = self._get_last_directive_idx(name)
if (idx == None): return None
line = self.get_line(idx)
return line
"""
def set_directive (self, name, line):
idx = self._get_last_directive_idx(name)
self.set_line( idx, line )
"""
# idx starts from 0 !! it's not a line number
def _get_last_directive_idx(self, name):
last_found = None
for key, line in enumerate(self.get_content()):
if (self.parser.get_directive(line) == name): last_found = key
return last_found
#TODO create if doesn't exist.
def set_directive(self, name, line):
idx = self._get_last_directive_idx(name)
if (idx == None):
return self.insert_line(self._last_line_idx(),
line.rstrip() + "\n")
self.set_line(idx, line.rstrip() + "\n")
def _last_line_idx(self):
return 999999
def has_option(self, name, option):
line = self.get_directive(name)
if (line == False or line == None): return False
return self.parser.has_option(line, option)
def get_options(self, name):
value = self.get_value(name)
if value == None: return []
options = self.parser.parse_options(value)
return options
def add_option(self, name, option):
line = self.get_directive(name)
if (line == False or line == None):
line = name
line = name + "\t" + self.parser.value_escape(option) + "\n"
self.insert_line(self._last_line_idx(), line)
return
line = self.parser.add_option(line, option)
self.set_directive(name, line)
def remove_option(self, name, option):
#we need idx later if we decide to remove the whole line
idx = self._get_last_directive_idx(name)
line = self.get_directive(name)
if (line == False or line == None): return False
line = self.parser.remove_option(line, option)
new_value = self.parser.get_value(line)
if (new_value.strip() == ""):
self.remove_line(idx)
else:
self.set_directive(name, line)
def get_source(self):
return "".join(self.get_content())
def get_content(self):
return self.content
def set_content_from_string(self, string):
self.content = string.split("\n")
def get_line(self, idx):
return self.get_content()[idx]
def set_line(self, idx, line):
self.content[idx] = line
def insert_line(self, idx, line):
"""Inserts a line at the given idx"""
if idx >= len(self.content): #out of range
idx = self._last_line_idx()
self.content.insert(idx, line)
self.raise_event('row_inserted', {'idx': idx, 'line': line})
def remove_line(self, idx):
del self.content[idx]
self.raise_event('row_removed', {'idx': idx})
class Parser (Observable):
filename = None
content = None
parser = None
def __init__ (self, *args, **kwargs):
super (Parser, self).__init__ (*args, **kwargs)
self.parser = LineParser()
self.apply_observing_policy()
def apply_observing_policy(self):
"""register the object with the observer"""
self.observer = PollyObserver()
self.observer.register(self)
def load(self, filename ):
"""Loads a configuration file in the parser"""
self.filename = filename
file = open ( filename, 'r' )
self.content = file.readlines()
file.close()
return self.content
def dump_values (self ):
"""Dumps every directive/value into a key/value dictionary. Newer
keys override older ones"""
dict = {}
for line in self.content:
key = self.parser.get_directive( line )
if key:
try:
value = self.parser.get_value(line)
dict[ key ] = value
except :
dict[ key ] = "#ERROR"
return dict
def get_value(self, name):
line = self.get_directive(name)
if line == None: return None
return self.parser.get_value(line)
def set_value (self, name, value):
idx = self._get_last_directive_idx(name)
if idx == None:
idx = self._last_line_idx()
line = name+"\t"+self.parser.value_escape( value )+"\n"
self.insert_line( self._last_line_idx(), line )
else:
line = self.get_line( idx )
line = self.parser.change_value(line, value)
self.set_line( idx, line )
def remove_value(self, name):
idx = self._get_last_directive_idx(name)
if idx:
self.remove_line(idx)
return True
return False
def get_directive(self, name):
idx = self._get_last_directive_idx(name)
if ( idx == None ): return None
line = self.get_line( idx )
return line
"""
def set_directive (self, name, line):
idx = self._get_last_directive_idx(name)
self.set_line( idx, line )
"""
# idx starts from 0 !! it's not a line number
def _get_last_directive_idx (self, name ):
last_found = None
for key, line in enumerate(self.get_content() ):
if ( self.parser.get_directive(line) == name ): last_found = key
return last_found
#TODO create if doesn't exist.
def set_directive (self, name, line):
idx = self._get_last_directive_idx(name)
if ( idx == None ):
return self.insert_line( self._last_line_idx() , line.rstrip()+"\n")
self.set_line( idx, line.rstrip()+"\n" )
def _last_line_idx (self):
return 999999
def has_option (self, name, option ):
line = self.get_directive(name)
if ( line == False or line == None ): return False
return self.parser.has_option(line, option)
def get_options (self, name):
value = self.get_value(name)
if value == None: return []
options = self.parser.parse_options( value )
return options
def add_option (self, name, option ):
line = self.get_directive(name)
if ( line == False or line == None ):
line = name
line = name+"\t"+self.parser.value_escape( option )+"\n"
self.insert_line( self._last_line_idx(), line )
return
line = self.parser.add_option(line, option)
self.set_directive(name, line)
def remove_option (self, name, option ):
#we need idx later if we decide to remove the whole line
idx = self._get_last_directive_idx(name)
line = self.get_directive(name)
if ( line == False or line == None ): return False
line = self.parser.remove_option(line, option)
new_value = self.parser.get_value( line )
if ( new_value.strip() == "" ):
self.remove_line( idx )
else:
self.set_directive(name, line)
def get_source (self):
return "".join( self.get_content() )
def get_content(self):
return self.content
def set_content_from_string(self, string):
self.content = string.split( "\n" )
def get_line(self, idx):
return self.get_content()[idx]
def set_line(self, idx, line):
self.content[ idx ] = line
def insert_line (self, idx, line):
"""Inserts a line at the given idx"""
if idx >= len( self.content ): #out of range
idx = self._last_line_idx()
self.content.insert( idx, line )
self.raise_event( 'row_inserted', {'idx':idx, 'line':line } )
def remove_line(self, idx ):
del self.content[ idx ]
self.raise_event( 'row_removed', {'idx':idx } )
