def valid_name(self, name):
forbidden_chars = ['(', ')', ':', '=', '+', '-', ',', '>>']
for c in forbidden_chars:
if c in name:
return False
element, etype = sg.get_token(name)
if element and etype in ['primitive', 'metacommand', 'transform']:
return False
return True
def valid_name(self, name):
forbidden_chars = ['(', ')', ':', '=', '+', '-', ',', '>>']
for c in forbidden_chars:
if c in name:
return False
element, etype = sg.get_token(name)
if element and etype in ['primitive', 'metacommand', 'transform']:
return False
return True
def simplify_expansions(self, toks, changed):
toks2 = []
changed = changed
for tok in toks:
n = tok
arglist = None
if '(' in tok:
n, args = tok.split('(', 1)
args = args[:-1]
level = 0
curarg = ''
arglist = []
for ch in args:
if ch == ',' and level == 0:
arglist.append(curarg.strip())
curarg = ''
continue
curarg = curarg + ch
if ch == '(':
level += 1
continue
if ch == ')':
level -= 1
continue
arglist.append(curarg.strip())
#if sg.debug: sg.trace('arglist: %s' % arglist)
element, etype = sg.get_token(n)
if element is not None and etype == 'macro' and not self.mcmode:
v = self.run_macro(element, arglist).split()
for e in v:
toks2.append(e)
changed = True
elif etype == 'metacommand' and self.mcmode:
v = [self.run_metacommand(element, arglist)]
# if sg.debug: sg.trace('meta: %s' % v)
return v, False # short circut
else:
toks2.append(tok)
#if sg.debug: sg.trace('toks2: %s' % toks2)
return toks2, changed
def simplify_expansions(self, toks, changed):
toks2 = []
changed = changed
for tok in toks:
n = tok
arglist = None
if '(' in tok:
n,args = tok.split('(',1)
args = args[:-1]
level = 0
curarg = ''
arglist = []
for ch in args:
if ch == ',' and level == 0:
arglist.append(curarg.strip())
curarg = ''
continue
curarg = curarg + ch
if ch == '(':
level += 1
continue
if ch == ')':
level -= 1
continue
arglist.append(curarg.strip())
#if sg.debug: sg.trace('arglist: %s' % arglist)
element, etype = sg.get_token(n)
if element is not None and etype == 'macro' and not self.mcmode:
v = self.run_macro(element, arglist).split()
for e in v: toks2.append(e)
changed = True
elif etype == 'metacommand' and self.mcmode:
v = [self.run_metacommand(element, arglist)]
# if sg.debug: sg.trace('meta: %s' % v)
return v,False # short circut
else:
toks2.append(tok)
#if sg.debug: sg.trace('toks2: %s' % toks2)
return toks2,changed
def parse_line(self, string, reset=True):
if reset: self.reset_parsing_state()
#@+<< metacommand mode >>
#@+node:peckj.20140318084140.4613: *4* << metacommand mode >>
if string.startswith('-'):
self.mcmode = True
#@-<< metacommand mode >>
self.notestate = sg.note.makestate() # to recover from errors without affecting note.statestack
#@+<< macro definition >>
#@+node:peckj.20140318084140.4611: *4* << macro definition >>
if '>>' in string or '=' in string:
# define macro!
event = self.define_macro(string)
return [event]
#@-<< macro definition >>
#@+<< mode definition >>
#@+node:peckj.20140318084140.4612: *4* << mode definition >>
if '!!' in string: ## STUB
# define mode!
return []
#@-<< mode definition >>
#@+<< auto invariance mode >>
#@+node:peckj.20140318084140.4614: *4* << auto invariance mode >>
if sg.auto_invariance:
string = ' '.join(['pushstate', string, 'popstate'])
#@-<< auto invariance mode >>
toks = self.simplify_line(string)
if len(toks) == 1 and type(toks[0]) is SilicaEvent:
return toks
out = []
#@+<< interpret tokens >>
#@+node:peckj.20140318084140.4615: *4* << interpret tokens >>
for tok in toks:
#if sg.debug: print tok
# should all be primitives + metacommands by now...
try:
element, etype = sg.get_token(tok)
#if sg.debug: print (element, etype)
if element is not None and etype is not None:
v = self.fn_table[etype](element)
if v is not None:
# v may be a list, in which case, append them all separately
if hasattr(v, '__iter__') and not isinstance(v, basestring):
for e in v: out.append(e)
else: out.append(v)
else:
raise SilicaInternalError('No fn_table type defined in parser for type %s' % etype)
else:
raise SilicaNameError('No token named %s exists in the current namespace' % tok)
except Exception as e:
sg.note.applystate(self.notestate) # exception occurred, the notestate must be reset
return [SilicaEvent('exception', exception=e)] # only return the exception!
#@-<< interpret tokens >>
#@+<< groups balanced >>
#@+node:peckj.20140318084140.4616: *4* << groups balanced >>
if self.groups_are_balanced(out):
return out
else:
e = SilicaGroupError('Groups are unbalanced.')
sg.note.applystate(self.notestate)
return [SilicaEvent('exception', exception=e)]
#@-<< groups balanced >>
return out
def parse_line(self, string, reset=True):
if reset: self.reset_parsing_state()
#@+<< metacommand mode >>
#@+node:peckj.20140318084140.4613: *4* << metacommand mode >>
if string.startswith('-'):
self.mcmode = True
#@-<< metacommand mode >>
self.notestate = sg.note.makestate(
) # to recover from errors without affecting note.statestack
#@+<< macro definition >>
#@+node:peckj.20140318084140.4611: *4* << macro definition >>
if '>>' in string or '=' in string:
# define macro!
event = self.define_macro(string)
return [event]
#@-<< macro definition >>
#@+<< mode definition >>
#@+node:peckj.20140318084140.4612: *4* << mode definition >>
if '!!' in string: ## STUB
# define mode!
return []
#@-<< mode definition >>
#@+<< auto invariance mode >>
#@+node:peckj.20140318084140.4614: *4* << auto invariance mode >>
if sg.auto_invariance:
string = ' '.join(['pushstate', string, 'popstate'])
#@-<< auto invariance mode >>
toks = self.simplify_line(string)
if len(toks) == 1 and type(toks[0]) is SilicaEvent:
return toks
out = []
#@+<< interpret tokens >>
#@+node:peckj.20140318084140.4615: *4* << interpret tokens >>
for tok in toks:
#if sg.debug: print tok
# should all be primitives + metacommands by now...
try:
element, etype = sg.get_token(tok)
#if sg.debug: print (element, etype)
if element is not None and etype is not None:
v = self.fn_table[etype](element)
if v is not None:
# v may be a list, in which case, append them all separately
if hasattr(v, '__iter__') and not isinstance(
v, basestring):
for e in v:
out.append(e)
else:
out.append(v)
else:
raise SilicaInternalError(
'No fn_table type defined in parser for type %s' %
etype)
else:
raise SilicaNameError(
'No token named %s exists in the current namespace' %
tok)
except Exception as e:
sg.note.applystate(
self.notestate
) # exception occurred, the notestate must be reset
return [SilicaEvent('exception',
exception=e)] # only return the exception!
#@-<< interpret tokens >>
#@+<< groups balanced >>
#@+node:peckj.20140318084140.4616: *4* << groups balanced >>
if self.groups_are_balanced(out):
return out
else:
e = SilicaGroupError('Groups are unbalanced.')
sg.note.applystate(self.notestate)
return [SilicaEvent('exception', exception=e)]
#@-<< groups balanced >>
return out