Support the DECSCUSR CSI escape sequence
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						Roberto E. Vargas Caballero
					
				
			
			
				
	
			
			
			
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								st.c
									
									
									
									
									
								
							@ -197,14 +197,14 @@ typedef struct {
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} TCursor;
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/* CSI Escape sequence structs */
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/* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
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/* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */
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typedef struct {
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	char buf[ESC_BUF_SIZ]; /* raw string */
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	int len;               /* raw string length */
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	char priv;
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	int arg[ESC_ARG_SIZ];
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	int narg;              /* nb of args */
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	char mode;
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	char mode[2];
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} CSIEscape;
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/* STR Escape sequence structs */
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@ -257,6 +257,7 @@ typedef struct {
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	int ch; /* char height */
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	int cw; /* char width  */
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	char state; /* focus, redraw, visible */
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	int cursor; /* cursor style */
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} XWindow;
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typedef struct {
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@ -1545,7 +1546,8 @@ csiparse(void) {
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			break;
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		p++;
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	}
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	csiescseq.mode = *p;
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	csiescseq.mode[0] = *p++;
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	csiescseq.mode[1] = (p < csiescseq.buf+csiescseq.len) ? *p : '\0';
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}
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/* for absolute user moves, when decom is set */
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@ -1983,7 +1985,7 @@ csihandle(void) {
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	char buf[40];
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	int len;
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	switch(csiescseq.mode) {
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	switch(csiescseq.mode[0]) {
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	default:
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	unknown:
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		fprintf(stderr, "erresc: unknown csi ");
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@ -2171,6 +2173,19 @@ csihandle(void) {
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	case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
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		tcursor(CURSOR_LOAD);
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		break;
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	case ' ':
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		switch (csiescseq.mode[1]) {
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			case 'q': /* DECSCUSR -- Set Cursor Style */
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				DEFAULT(csiescseq.arg[0], 1);
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				if (!BETWEEN(csiescseq.arg[0], 0, 6)) {
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					goto unknown;
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				}
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				xw.cursor = csiescseq.arg[0];
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				break;
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			default:
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				goto unknown;
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		}
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		break;
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	}
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}
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@ -3551,16 +3566,36 @@ xdrawcursor(void) {
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	/* draw the new one */
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	if(xw.state & WIN_FOCUSED) {
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		if(IS_SET(MODE_REVERSE)) {
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			g.mode |= ATTR_REVERSE;
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			g.fg = defaultcs;
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			g.bg = defaultfg;
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		}
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		switch (xw.cursor) {
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			case 0: /* Blinking Block */
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			case 1: /* Blinking Block (Default) */
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			case 2: /* Steady Block */
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				if(IS_SET(MODE_REVERSE)) {
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						g.mode |= ATTR_REVERSE;
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						g.fg = defaultcs;
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						g.bg = defaultfg;
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					}
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		sl = utf8len(g.c);
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		width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
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			? 2 : 1;
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		xdraws(g.c, g, term.c.x, term.c.y, width, sl);
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				sl = utf8len(g.c);
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				width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
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					? 2 : 1;
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				xdraws(g.c, g, term.c.x, term.c.y, width, sl);
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				break;
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			case 3: /* Blinking Underline */
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			case 4: /* Steady Underline */
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				XftDrawRect(xw.draw, &dc.col[defaultcs],
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						borderpx + curx * xw.cw,
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						borderpx + (term.c.y + 1) * xw.ch - 1,
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						xw.cw, 1);
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				break;
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			case 5: /* Blinking bar */
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			case 6: /* Steady bar */
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				XftDrawRect(xw.draw, &dc.col[defaultcs],
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								borderpx + curx * xw.cw,
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								borderpx + term.c.y * xw.ch,
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								1, xw.ch);
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				break;
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		}
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	} else {
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		XftDrawRect(xw.draw, &dc.col[defaultcs],
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				borderpx + curx * xw.cw,
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@ -3985,6 +4020,7 @@ main(int argc, char *argv[]) {
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	xw.l = xw.t = 0;
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	xw.isfixed = False;
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	xw.cursor = 0;
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	ARGBEGIN {
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	case 'a':
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