id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	lang	patch	platform
760	readline_interactive method no longer returns PMCNULL on eof	flh	whiteknight	"Sending EOF to the standard input (typically: hitting Control-G) does not make HLLCompiler end interactive sessions when readline is used.

To reproduce: take your favorite HLL written with HLLCompiler, and a Parrot with readline, and run it without any argument. This should start an interactive session (i.e., you get a prompt for the language), but hitting {{{^G}}} makes HLLCompiler display a new prompt instead of exiting.

This bug has two origins:

* the ""readline_interactive"" method of FileHandle always returns a string (that's because of its type: when it seems to return NULL, it is actually converted to the empty string). On the other hand, HLLCompiler tests if the value returned by ""readline_interactive"" is null to detect EOF: this test is always false... The fix is to test EOF using the ""get_bool"" vtable of FileHandle; and

* the method ""readline_interactive"" never sets the EOF flag when readline is activated.

The attached patch fixes this."	patch	new	blocker		core	trunk	release				tcl	rejected	all