CHECKIT

var := CHECKIT arg [option]

with option being either empty, in which case the type of the shell item or of the sourcecode item arg will be returned, or one out of the following keywords:

option	description	result on success	result on failure
/Executable	check if arg is executable, i.e., if it is a command, instance, macro, or class	'1' if arg is executable	'0' otherwise
/Item	get type of the shell item arg	type of the shell item (cf. shell item types) if arg is a shell item	empty string otherwise
/Code	get type of the source code arg	'macro', 'class', or 'spu' if arg is a source code macro, class, or SPU.	empty string otherwise
/Visible	check if arg is a visible source code	'1' if it is	'0' if it is not
/File	get full sourcefile path of source code arg	fullpath if arg is a source code	empty string otherwise
/Style	get style of sourcecode arg	codestyle if arg is a source code	empty string otherwise
no option at all	get type of shell item or source code arg	itemtype or codetype if arg is a shell item, or a source code	empty string otherwise

// codestyle: 'local', 'main', 'shell', 'sys', 'msgHandler' or 'global' // note: 'global' is the default codestyle if none is specified in the code header