Php Parser : bug triggered by direct rule reference about arpeggio HOT 4 CLOSED

Hi, I did some programming for Arpeggio and from what I know, defining rules in Arpeggio, automatically includes whitespaces and endlines.

If you write your rule as:

rule  =  "key" "word" "test

All of the following statements will fit ( dots represent spaces, arrows represent tabs):

 // Example 1:
 key....word
 test 

 // Example 2:
 key....word...test

 // Example 3:
 key
 --->word
 test 

Unless something changed in the meantime, Arpeggio by default accepts any number of whitespaces (space or tab) and newlines between two element in a rule.

from arpeggio.

There is a parser parameter skipws which is True by default. When this param is set to False arpeggio will not skip whitespaces.

Yash, considering the error you are getting. It is a bug in the PEG rules resolving during ParserPEG construction triggered by the rule calc = test. I am working on it. In the mean time the workaround is to remove this rule and directly reference test rule from ParserPEG. Like this:

    parser = ParserPEG(calc_grammar, "test", skipws=False)

from arpeggio.

The issue is fixed. this test now passes.

from arpeggio.

Yup worked well 👍

from arpeggio.