def __isCommand(self, key, word2):
""" decide if a keyword and next word are of the form
'command arg, ...'
which will get translated to
'command(arg, ...)'
to allow 'command syntax'
"""
# this could be in one long test, but we simplify:
# first test key:
if (not isValidName(key) or
key in self.friends or
key.startswith('#') or
len(key) < 1 or len(word2) < 1):
return False
if self._larch is not None:
comms = self._larch.symtable.get_symbol('_sys.valid_commands',
create=True)
if key not in comms:
return False
# next test word2
return (isValidName(word2) or isNumber(word2) or
isLiteralStr(word2) )
def __isCommand(self, key, word2):
""" decide if a keyword and next word are of the form
'command arg, ...'
which will get translated to
'command(arg, ...)'
to allow 'command syntax'
"""
# this could be in one long test, but we simplify:
# first test key:
if (not isValidName(key) or key in self.friends or key.startswith('#')
or len(key) < 1 or len(word2) < 1):
return False
# next test word2
return (isValidName(word2) or isNumber(word2) or isLiteralStr(word2))
def get_DefVar(text):
"""
looks for defined variable statement, of the form
>> def varname = exression
returns (varname, expression) if this is a valid defvar statement
or None, None if not a valid defvar statement
"""
if text.find('=') > 0 and text.startswith('def '):
t = text[4:].replace('=',' = ').strip()
words = t.split()
if len(words) > 2 and words[1] == '=':
iequal = t.find('=')
iparen = t.find('(')
icolon = t.find(':')
if iparen < 0 :
iparen = len(t)+1
if icolon < 0 :
icolon = len(t)+1
# print iequal, iparen, icolon, words[0], isValidName(words[0])
if (iequal < iparen and iequal < icolon and
isValidName(words[0])):
return words[0], t[iequal+1:].strip()
return None, None
def __isCommand(self, key, word2):
""" decide if a keyword and next word are of the form
'command arg, ...'
which will get translated to
'command(arg, ...)'
to allow 'command syntax'
"""
# this could be in one long test, but we simplify:
# first test key:
if (not isValidName(key) or
key in self.friends or
key.startswith('#') or
len(key) < 1 or len(word2) < 1):
return False
# next test word2
return (isValidName(word2) or isNumber(word2) or
isLiteralStr(word2) )
def get_DefVar(text):
"""
looks for defined variable statement, of the form
>> def varname = exression
returns (varname, expression) if this is a valid defvar statement
or None, None if not a valid defvar statement
"""
if text.find('=') > 0 and text.startswith('def '):
t = text[4:].replace('=', ' = ').strip()
words = t.split()
if len(words) > 2 and words[1] == '=':
iequal = t.find('=')
iparen = t.find('(')
icolon = t.find(':')
if iparen < 0:
iparen = len(t) + 1
if icolon < 0:
icolon = len(t) + 1
# print iequal, iparen, icolon, words[0], isValidName(words[0])
if (iequal < iparen and iequal < icolon and isValidName(words[0])):
return words[0], t[iequal + 1:].strip()
return None, None
