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#define MAXARGS 2



enum vt_state {

	vt_idle,

	vt_esc,

	vt_args,

	vt_cmd,

	vt_utf,

	vt_osc,

	vt_osce

};



struct vt_context {

	enum vt_state state;



	/* Record attribute sequence */

	char buf[1024];

	ptrdiff_t bufx;



	/* Numeric arguments */

	ptrdiff_t argv[MAXARGS + 1];

	ptrdiff_t argc;



	P *top;

	ptrdiff_t height;

	ptrdiff_t width;



	ptrdiff_t regn_top;

	ptrdiff_t regn_bot;



	P *vtcur;

	B *b;



	KBD *kbd;



	int attr; /* Current attributes */



	struct utf8_sm utf8_sm;

};





VT *mkvt(B *b, P *top, ptrdiff_t height, ptrdiff_t width);

void vtrm(VT *vt);



MACRO *vt_data(VT *vt, char **indat, ptrdiff_t *insiz);



void vt_resize(VT *vt, P *top, ptrdiff_t height, ptrdiff_t width);
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