typedef enum MetaCommand
{
	META_NONE,					/* not a known meta-command */
	META_SET,					/* \set */
	META_SETSHELL,				/* \setshell */
	META_SHELL,					/* \shell */
	META_SLEEP,					/* \sleep */
	META_GSET,					/* \gset */
	META_ASET,					/* \aset */
	META_IF,					/* \if */
	META_ELIF,					/* \elif */
	META_ELSE,					/* \else */
	META_ENDIF,					/* \endif */
	META_STARTPIPELINE,			/* \startpipeline */
	META_ENDPIPELINE			/* \endpipeline */
} MetaCommand;