On Oct 31, 6:59 am, Neal Becker <[EMAIL PROTECTED]> wrote: > I'm just trying out pyparsing. I get stack overflow on my first try. Any > help? > > #/usr/bin/python > > from pyparsing import Word, alphas, QuotedString, OneOrMore, delimitedList > > first_line = '[' + delimitedList (QuotedString) + ']' > > def main(): > string = '''[ 'a', 'b', 'cdef']''' > greeting = first_line.parseString (string) > print greeting > > if __name__ == "__main__": > main() > > /usr/lib/python2.5/site-packages/pyparsing.py:2727: SyntaxWarning: Cannot > add element of type <type 'type'> to ParserElement > return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName) > /usr/lib/python2.5/site-packages/pyparsing.py:1008: SyntaxWarning: Cannot > add element of type <type 'type'> to ParserElement > return other + self > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > File "/usr/tmp/python-k3AVeY.py", line 5, in <module> > first_line = '[' + delimitedList (QuotedString) + ']' > File "/usr/lib/python2.5/site-packages/pyparsing.py", line 2727, in > delimitedList > return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName) > File "/usr/lib/python2.5/site-packages/pyparsing.py", line 1008, in > __radd__ > return other + self > File "/usr/lib/python2.5/site-packages/pyparsing.py", line 1008, in > __radd__ > return other + self
Oh! You are so close! QuotedString is a class. delimitedList does not accept a class, but an expression, which is usually created using instances of the pyparsing classes. quotedString is an expression, defining a pretty complex quoted string syntax (single or double-quoted string). Just change QuotedString to quotedString throughout your script, and try again. -- Paul -- http://mail.python.org/mailman/listinfo/python-list
