def t_indent_sp(t):
r'\n\ *'
global Last_colonindent, Sent_newline
indent = len(t.value) - 1
if indent == Last_colonindent:
t.lexer.lineno += 1
t.lexer.begin('INITIAL')
t.type = 'NEWLINE_TOK'
return t
if indent > Last_colonindent:
t.lexer.lineno += 1
t.lexer.begin('INITIAL')
return
if indent % 4:
raise SyntaxError("invalid indent level, must be multiple of 4 spaces",
scanner_init.syntaxerror_params())
if not Sent_newline:
t.lexer.lineno += 1
t.lexer.skip(-len(t.value)) # come back here after NEWLINE_TOK
t.type = 'NEWLINE_TOK'
Sent_newline = True
return t
t.type = 'DEINDENT_TOK'
Last_colonindent -= 4
if indent == Last_colonindent:
t.lexer.begin('INITIAL')
else:
t.lexer.skip(-len(t.value)) # come back here after DEINDENT_TOK
return t
def t_colonindent_INDENT_TOK(t):
r'\n\ *'
global Last_colonindent
indent = len(t.value) - 1
if indent != Last_colonindent + 4:
raise SyntaxError("improper indent level after :",
scanner_init.syntaxerror_params())
Last_colonindent = indent
t.lexer.begin('INITIAL')
return t
def t_ANY_error(t):
raise SyntaxError("Scanner error: possible illegal character %r" %
t.value[0],
scanner_init.syntaxerror_params())
def p_error(t):
if t is None:
raise SyntaxError("invalid syntax", scanner_init.syntaxerror_params())
else:
raise SyntaxError("invalid syntax", scanner_init.syntaxerror_params(t))
