def _parse_productions(self):
"""
Parse the current contents of the textwidget buffer, to create
a list of productions.
"""
productions = []
# Get the text, normalize it, and split it into lines.
text = self._textwidget.get('1.0', 'end')
text = re.sub(self.ARROW, '->', text)
text = re.sub('\t', ' ', text)
lines = text.split('\n')
# Convert each line to a CFG production
for line in lines:
line = line.strip()
if line=='': continue
productions += parse_cfg_production(line)
#if line.strip() == '': continue
#if not CFGEditor._PRODUCTION_RE.match(line):
# raise ValueError('Bad production string %r' % line)
#
#(lhs_str, rhs_str) = line.split('->')
#lhs = Nonterminal(lhs_str.strip())
#rhs = []
#def parse_token(match, rhs=rhs):
# token = match.group()
# if token[0] in "'\"": rhs.append(token[1:-1])
# else: rhs.append(Nonterminal(token))
# return ''
#CFGEditor._TOKEN_RE.sub(parse_token, rhs_str)
#
#productions.append(Production(lhs, *rhs))
return productions
def _parse_productions(self):
"""
Parse the current contents of the textwidget buffer, to create
a list of productions.
"""
productions = []
# Get the text, normalize it, and split it into lines.
text = self._textwidget.get('1.0', 'end')
text = re.sub(self.ARROW, '->', text)
text = re.sub('\t', ' ', text)
lines = text.split('\n')
# Convert each line to a CFG production
for line in lines:
line = line.strip()
if line == '': continue
productions += parse_cfg_production(line)
#if line.strip() == '': continue
#if not CFGEditor._PRODUCTION_RE.match(line):
# raise ValueError('Bad production string %r' % line)
#
#(lhs_str, rhs_str) = line.split('->')
#lhs = Nonterminal(lhs_str.strip())
#rhs = []
#def parse_token(match, rhs=rhs):
# token = match.group()
# if token[0] in "'\"": rhs.append(token[1:-1])
# else: rhs.append(Nonterminal(token))
# return ''
#CFGEditor._TOKEN_RE.sub(parse_token, rhs_str)
#
#productions.append(Production(lhs, *rhs))
return productions