id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc	planetversion	pltversion
151	_ pattern succeeds on end of input?	pnkfelix@…	kazzmir	"The behavior below does not seem to agree with Bryan Ford's POPL '04 paper:

{{{
#lang scheme
(require (planet kazzmir/peg:2:0/peg))
(parse (peg (start s) (grammar (s ((_) $)))) ""a"")
(parse (peg (start s) (grammar (s ((_ _) $)))) ""a"")
}}}
produces the output:
{{{
Welcome to DrScheme, version 4.1.4 [3m].
Language: Module; memory limit: 128 megabytes.
#\a
#<procedure:end-of-input>
> 
}}}

I would have expected {{{#f}}} for that last output.

"	defect	new	major		kazzmir/peg.plt					4.1.4