X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=st.c;h=932253c3953566b7892411be73603c9e4873d739;hb=16ccf344deccbae53865b6efbe9dc23ebdceccb7;hp=ab8540c26a871e585cfb4a8d05e9c9ed75770f88;hpb=d7b1e31eec9a87c666334006de25a7f8102c55a9;p=st.git

diff --git a/st.c b/st.c
index ab8540c..932253c 100644
--- a/st.c
+++ b/st.c
@@ -5,6 +5,7 @@
 #include <fcntl.h>
 #include <limits.h>
 #include <locale.h>
+#include <pwd.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdio.h>
@@ -26,8 +27,13 @@
 #include <X11/keysym.h>
 #include <X11/extensions/Xdbe.h>
 #include <X11/Xft/Xft.h>
+#include <fontconfig/fontconfig.h>
+
 #define Glyph Glyph_
 #define Font Font_
+#define Draw XftDraw *
+#define Colour XftColor
+#define Colourmap Colormap
 
 #if   defined(__linux)
  #include <pty.h>
@@ -39,8 +45,8 @@
 
 #define USAGE \
 	"st " VERSION " (c) 2010-2012 st engineers\n" \
-	"usage: st [-t title] [-c class] [-g geometry]" \
-	" [-w windowid] [-v] [-f file] [-e command...]\n"
+	"usage: st [-v] [-c class] [-f font] [-g geometry] [-o file]" \
+	" [-t title] [-w windowid] [-e command ...]\n"
 
 /* XEMBED messages */
 #define XEMBED_FOCUS_IN  4
@@ -58,6 +64,8 @@
 
 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
 
+/* macros */
+#define CLEANMASK(mask) (mask & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
 #define SERRNO strerror(errno)
 #define MIN(a, b)  ((a) < (b) ? (a) : (b))
 #define MAX(a, b)  ((a) < (b) ? (b) : (a))
@@ -68,8 +76,8 @@
 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
 #define IS_SET(flag) (term.mode & (flag))
 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
-#define X2COL(x) (((x) - BORDER)/xw.cw)
-#define Y2ROW(y) (((y) - BORDER)/xw.ch)
+
+#define VT102ID "\033[?6c"
 
 enum glyph_attribute {
 	ATTR_NULL      = 0,
@@ -92,8 +100,8 @@ enum cursor_movement {
 
 enum cursor_state {
 	CURSOR_DEFAULT  = 0,
-	CURSOR_HIDE     = 1,
-	CURSOR_WRAPNEXT = 2
+	CURSOR_WRAPNEXT = 1,
+	CURSOR_ORIGIN	= 2
 };
 
 enum glyph_state {
@@ -102,16 +110,19 @@ enum glyph_state {
 };
 
 enum term_mode {
-	MODE_WRAP	= 1,
+	MODE_WRAP	 = 1,
 	MODE_INSERT      = 2,
 	MODE_APPKEYPAD   = 4,
 	MODE_ALTSCREEN   = 8,
-	MODE_CRLF	= 16,
+	MODE_CRLF	 = 16,
 	MODE_MOUSEBTN    = 32,
 	MODE_MOUSEMOTION = 64,
 	MODE_MOUSE       = 32|64,
 	MODE_REVERSE     = 128,
-	MODE_KBDLOCK     = 256
+	MODE_KBDLOCK     = 256,
+	MODE_HIDE	 = 512,
+	MODE_ECHO	 = 1024,
+	MODE_APPCURSOR	 = 2048
 };
 
 enum escape_state {
@@ -120,6 +131,7 @@ enum escape_state {
 	ESC_STR	= 4, /* DSC, OSC, PM, APC */
 	ESC_ALTCHARSET = 8,
 	ESC_STR_END    = 16, /* a final string was encountered */
+	ESC_TEST       = 32, /* Enter in test mode */
 };
 
 enum window_state {
@@ -179,9 +191,9 @@ typedef struct {
 typedef struct {
 	int row;	/* nb row */
 	int col;	/* nb col */
-	Line* line;	/* screen */
-	Line* alt;	/* alternate screen */
-	bool* dirty;	/* dirtyness of lines */
+	Line *line;	/* screen */
+	Line *alt;	/* alternate screen */
+	bool *dirty;	/* dirtyness of lines */
 	TCursor c;	/* cursor */
 	int top;	/* top    scroll limit */
 	int bot;	/* bottom scroll limit */
@@ -192,14 +204,14 @@ typedef struct {
 
 /* Purely graphic info */
 typedef struct {
-	Display* dpy;
-	Colormap cmap;
+	Display *dpy;
+	Colourmap cmap;
 	Window win;
 	XdbeBackBuffer buf;
-	Atom xembed;
+	Atom xembed, wmdeletewin;
 	XIM xim;
 	XIC xic;
-	XftDraw *xft_draw;
+	Draw draw;
 	Visual *vis;
 	int scr;
 	bool isfixed; /* is fixed geometry? */
@@ -216,6 +228,10 @@ typedef struct {
 	KeySym k;
 	uint mask;
 	char s[ESC_BUF_SIZ];
+	/* three valued logic variables: 0 indifferent, 1 on, -1 off */
+	signed char appkey;		/* application keypad */
+	signed char appcursor;		/* application cursor */
+	signed char crlf;		/* crlf mode          */
 } Key;
 
 /* TODO: use better name for vars... */
@@ -223,7 +239,9 @@ typedef struct {
 	int mode;
 	int bx, by;
 	int ex, ey;
-	struct {int x, y;} b, e;
+	struct {
+		int x, y;
+	} b, e;
 	char *clip;
 	Atom xtarget;
 	bool alt;
@@ -231,25 +249,45 @@ typedef struct {
 	struct timeval tclick2;
 } Selection;
 
+typedef union {
+	int i;
+	unsigned int ui;
+	float f;
+	const void *v;
+} Arg;
+
+typedef struct {
+	unsigned int mod;
+	KeySym keysym;
+	void (*func)(const Arg *);
+	const Arg arg;
+} Shortcut;
+
+/* function definitions used in config.h */
+static void xzoom(const Arg *);
+static void selpaste(const Arg *);
+
+/* Config.h for applying patches and the configuration. */
 #include "config.h"
 
 /* Font structure */
 typedef struct {
+	int height;
+	int width;
 	int ascent;
 	int descent;
 	short lbearing;
 	short rbearing;
-	XftFont* xft_set;
+	XftFont *set;
 } Font;
 
 /* Drawing Context */
 typedef struct {
-	XftColor xft_col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
-	GC gc;
+	Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
 	Font font, bfont, ifont, ibfont;
 } DC;
 
-static void die(const char*, ...);
+static void die(const char *, ...);
 static void draw(void);
 static void redraw(void);
 static void drawregion(int, int, int, int);
@@ -273,21 +311,23 @@ static void tdeleteline(int);
 static void tinsertblank(int);
 static void tinsertblankline(int);
 static void tmoveto(int, int);
+static void tmoveato(int x, int y);
 static void tnew(int, int);
 static void tnewline(int);
 static void tputtab(bool);
-static void tputc(char*, int);
+static void tputc(char *, int);
 static void treset(void);
 static int tresize(int, int);
 static void tscrollup(int, int);
 static void tscrolldown(int, int);
 static void tsetattr(int*, int);
-static void tsetchar(char*);
+static void tsetchar(char *, Glyph *, int, int);
 static void tsetscroll(int, int);
 static void tswapscreen(void);
 static void tsetdirt(int, int);
 static void tsetmode(bool, bool, int *, int);
 static void tfulldirt(void);
+static void techo(char *, int);
 
 static void ttynew(void);
 static void ttyread(void);
@@ -297,7 +337,6 @@ static void ttywrite(const char *, size_t);
 static void xdraws(char *, Glyph, int, int, int, int);
 static void xhints(void);
 static void xclear(int, int, int, int);
-static void xclearborders(void);
 static void xdrawcursor(void);
 static void xinit(void);
 static void xloadcols(void);
@@ -310,9 +349,10 @@ static void xresize(int, int);
 static void expose(XEvent *);
 static void visibility(XEvent *);
 static void unmap(XEvent *);
-static char* kmap(KeySym, uint);
+static char *kmap(KeySym, uint);
 static void kpress(XEvent *);
 static void cmessage(XEvent *);
+static void cresize(int width, int height);
 static void resize(XEvent *);
 static void focus(XEvent *);
 static void brelease(XEvent *);
@@ -325,7 +365,6 @@ static void selrequest(XEvent *);
 static void selinit(void);
 static inline bool selected(int, int);
 static void selcopy(void);
-static void selpaste(void);
 static void selscroll(int, int);
 
 static int utf8decode(char *, long *);
@@ -333,6 +372,7 @@ static int utf8encode(long *, char *);
 static int utf8size(char *);
 static int isfullutf8(char *, int);
 
+static ssize_t xwrite(int, char *, size_t);
 static void *xmalloc(size_t);
 static void *xrealloc(void *, size_t);
 static void *xcalloc(size_t nmemb, size_t size);
@@ -364,17 +404,37 @@ static int cmdfd;
 static pid_t pid;
 static Selection sel;
 static int iofd = -1;
-static char **opt_cmd  = NULL;
-static char *opt_io    = NULL;
+static char **opt_cmd = NULL;
+static char *opt_io = NULL;
 static char *opt_title = NULL;
 static char *opt_embed = NULL;
 static char *opt_class = NULL;
+static char *opt_font = NULL;
+
+static char *usedfont = NULL;
+static int usedfontsize = 0;
+
+ssize_t
+xwrite(int fd, char *s, size_t len) {
+	size_t aux = len;
+
+	while(len > 0) {
+		ssize_t r = write(fd, s, len);
+		if(r < 0)
+			return r;
+		len -= r;
+		s += r;
+	}
+	return aux;
+}
 
 void *
 xmalloc(size_t len) {
 	void *p = malloc(len);
+
 	if(!p)
 		die("Out of memory\n");
+
 	return p;
 }
 
@@ -382,14 +442,17 @@ void *
 xrealloc(void *p, size_t len) {
 	if((p = realloc(p, len)) == NULL)
 		die("Out of memory\n");
+
 	return p;
 }
 
 void *
 xcalloc(size_t nmemb, size_t size) {
 	void *p = calloc(nmemb, size);
+
 	if(!p)
 		die("Out of memory\n");
+
 	return p;
 }
 
@@ -412,8 +475,10 @@ utf8decode(char *s, long *u) {
 	} else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
 		*u = c & (B2|B1|B0);
 		n = 3;
-	} else
+	} else {
 		goto invalid;
+	}
+
 	for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
 		c = *s;
 		if((c & (B7|B6)) != B7) /* 10xxxxxx */
@@ -421,14 +486,18 @@ utf8decode(char *s, long *u) {
 		*u <<= 6;
 		*u |= c & (B5|B4|B3|B2|B1|B0);
 	}
+
 	if((n == 1 && *u < 0x80) ||
 	   (n == 2 && *u < 0x800) ||
 	   (n == 3 && *u < 0x10000) ||
-	   (*u >= 0xD800 && *u <= 0xDFFF))
+	   (*u >= 0xD800 && *u <= 0xDFFF)) {
 		goto invalid;
+	}
+
 	return rtn;
 invalid:
 	*u = 0xFFFD;
+
 	return rtn;
 }
 
@@ -438,7 +507,7 @@ utf8encode(long *u, char *s) {
 	ulong uc;
 	int i, n;
 
-	sp = (uchar*) s;
+	sp = (uchar *)s;
 	uc = *u;
 	if(uc < 0x80) {
 		*sp = uc; /* 0xxxxxxx */
@@ -455,14 +524,17 @@ utf8encode(long *u, char *s) {
 	} else {
 		goto invalid;
 	}
+
 	for(i=n,++sp; i>0; --i,++sp)
 		*sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
+
 	return n+1;
 invalid:
 	/* U+FFFD */
 	*s++ = '\xEF';
 	*s++ = '\xBF';
 	*s = '\xBD';
+
 	return 3;
 }
 
@@ -472,38 +544,40 @@ int
 isfullutf8(char *s, int b) {
 	uchar *c1, *c2, *c3;
 
-	c1 = (uchar *) s;
-	c2 = (uchar *) ++s;
-	c3 = (uchar *) ++s;
-	if(b < 1)
+	c1 = (uchar *)s;
+	c2 = (uchar *)++s;
+	c3 = (uchar *)++s;
+	if(b < 1) {
 		return 0;
-	else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
+	} else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1) {
 		return 0;
-	else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
+	} else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
 	    ((b == 1) ||
-	    ((b == 2) && (*c2&(B7|B6)) == B7)))
+	    ((b == 2) && (*c2&(B7|B6)) == B7))) {
 		return 0;
-	else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
+	} else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
 	    ((b == 1) ||
 	    ((b == 2) && (*c2&(B7|B6)) == B7) ||
-	    ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7)))
+	    ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7))) {
 		return 0;
-	else
+	} else {
 		return 1;
+	}
 }
 
 int
 utf8size(char *s) {
 	uchar c = *s;
 
-	if(~c&B7)
+	if(~c&B7) {
 		return 1;
-	else if((c&(B7|B6|B5)) == (B7|B6))
+	} else if((c&(B7|B6|B5)) == (B7|B6)) {
 		return 2;
-	else if((c&(B7|B6|B5|B4)) == (B7|B6|B5))
+	} else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) {
 		return 3;
-	else
+	} else {
 		return 4;
+	}
 }
 
 void
@@ -518,15 +592,36 @@ selinit(void) {
 		sel.xtarget = XA_STRING;
 }
 
+static int
+x2col(int x) {
+	x -= borderpx;
+	x /= xw.cw;
+
+	return LIMIT(x, 0, term.col-1);
+}
+
+static int
+y2row(int y) {
+	y -= borderpx;
+	y /= xw.ch;
+
+	return LIMIT(y, 0, term.row-1);
+}
+
 static inline bool
 selected(int x, int y) {
+	int bx, ex;
+
 	if(sel.ey == y && sel.by == y) {
-		int bx = MIN(sel.bx, sel.ex);
-		int ex = MAX(sel.bx, sel.ex);
+		bx = MIN(sel.bx, sel.ex);
+		ex = MAX(sel.bx, sel.ex);
 		return BETWEEN(x, bx, ex);
 	}
-	return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x))
-		|| (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
+
+	return ((sel.b.y < y && y < sel.e.y)
+			|| (y == sel.e.y && x <= sel.e.x))
+			|| (y == sel.b.y && x >= sel.b.x
+				&& (x <= sel.e.x || sel.b.y != sel.e.y));
 }
 
 void
@@ -534,8 +629,9 @@ getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
 	if(b)
 		*b = e->xbutton.button;
 
-	*x = X2COL(e->xbutton.x);
-	*y = Y2ROW(e->xbutton.y);
+	*x = x2col(e->xbutton.x);
+	*y = y2row(e->xbutton.y);
+
 	sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
 	sel.b.y = MIN(sel.by, sel.ey);
 	sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
@@ -544,8 +640,8 @@ getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
 
 void
 mousereport(XEvent *e) {
-	int x = X2COL(e->xbutton.x);
-	int y = Y2ROW(e->xbutton.y);
+	int x = x2col(e->xbutton.x);
+	int y = y2row(e->xbutton.y);
 	int button = e->xbutton.button;
 	int state = e->xbutton.state;
 	char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
@@ -578,41 +674,48 @@ mousereport(XEvent *e) {
 
 void
 bpress(XEvent *e) {
-	if(IS_SET(MODE_MOUSE))
+	if(IS_SET(MODE_MOUSE)) {
 		mousereport(e);
-	else if(e->xbutton.button == Button1) {
+	} else if(e->xbutton.button == Button1) {
 		if(sel.bx != -1) {
 			sel.bx = -1;
 			tsetdirt(sel.b.y, sel.e.y);
 			draw();
 		}
 		sel.mode = 1;
-		sel.ex = sel.bx = X2COL(e->xbutton.x);
-		sel.ey = sel.by = Y2ROW(e->xbutton.y);
+		sel.ex = sel.bx = x2col(e->xbutton.x);
+		sel.ey = sel.by = y2row(e->xbutton.y);
+	} else if(e->xbutton.button == Button4) {
+		ttywrite("\031", 1);
+	} else if(e->xbutton.button == Button5) {
+		ttywrite("\005", 1);
 	}
 }
 
 void
 selcopy(void) {
-	char *str, *ptr;
-	int x, y, bufsize, is_selected = 0;
+	char *str, *ptr, *p;
+	int x, y, bufsize, is_selected = 0, size;
+	Glyph *gp, *last;
 
-	if(sel.bx == -1)
+	if(sel.bx == -1) {
 		str = NULL;
-
-	else {
+	} else {
 		bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
 		ptr = str = xmalloc(bufsize);
 
 		/* append every set & selected glyph to the selection */
 		for(y = 0; y < term.row; y++) {
-			for(x = 0; x < term.col; x++) {
-				int size;
-				char *p;
-				Glyph *gp = &term.line[y][x];
+			gp = &term.line[y][0];
+			last = gp + term.col;
+
+			while(--last >= gp && !(last->state & GLYPH_SET))
+				/* nothing */;
 
+			for(x = 0; gp <= last; x++, ++gp) {
 				if(!(is_selected = selected(x, y)))
 					continue;
+
 				p = (gp->state & GLYPH_SET) ? gp->c : " ";
 				size = utf8size(p);
 				memcpy(ptr, p, size);
@@ -651,8 +754,9 @@ selnotify(XEvent *e) {
 }
 
 void
-selpaste() {
-	XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
+selpaste(const Arg *dummy) {
+	XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
+			xw.win, CurrentTime);
 }
 
 void selclear(XEvent *e) {
@@ -666,7 +770,7 @@ void
 selrequest(XEvent *e) {
 	XSelectionRequestEvent *xsre;
 	XSelectionEvent xev;
-	Atom xa_targets;
+	Atom xa_targets, string;
 
 	xsre = (XSelectionRequestEvent *) e;
 	xev.type = SelectionNotify;
@@ -680,7 +784,7 @@ selrequest(XEvent *e) {
 	xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
 	if(xsre->target == xa_targets) {
 		/* respond with the supported type */
-		Atom string = sel.xtarget;
+		string = sel.xtarget;
 		XChangeProperty(xsre->display, xsre->requestor, xsre->property,
 				XA_ATOM, 32, PropModeReplace,
 				(uchar *) &string, 1);
@@ -713,59 +817,71 @@ xsetsel(char *str) {
 
 void
 brelease(XEvent *e) {
+	struct timeval now;
+
 	if(IS_SET(MODE_MOUSE)) {
 		mousereport(e);
 		return;
 	}
-	if(e->xbutton.button == Button2)
-		selpaste();
-	else if(e->xbutton.button == Button1) {
+
+	if(e->xbutton.button == Button2) {
+		selpaste(NULL);
+	} else if(e->xbutton.button == Button1) {
 		sel.mode = 0;
 		getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
 		term.dirty[sel.ey] = 1;
 		if(sel.bx == sel.ex && sel.by == sel.ey) {
-			struct timeval now;
 			sel.bx = -1;
 			gettimeofday(&now, NULL);
 
-			if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
+			if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
 				/* triple click on the line */
 				sel.b.x = sel.bx = 0;
 				sel.e.x = sel.ex = term.col;
 				sel.b.y = sel.e.y = sel.ey;
 				selcopy();
-			} else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
+			} else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
 				/* double click to select word */
 				sel.bx = sel.ex;
 				while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
-					  term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
+						term.line[sel.ey][sel.bx-1].c[0] != ' ') {
+					sel.bx--;
+				}
 				sel.b.x = sel.bx;
 				while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
-					  term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
+						term.line[sel.ey][sel.ex+1].c[0] != ' ') {
+					sel.ex++;
+				}
 				sel.e.x = sel.ex;
 				sel.b.y = sel.e.y = sel.ey;
 				selcopy();
 			}
-		} else
+		} else {
 			selcopy();
+		}
 	}
+
 	memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
 	gettimeofday(&sel.tclick1, NULL);
 }
 
 void
 bmotion(XEvent *e) {
+	int starty, endy, oldey, oldex;
+
 	if(IS_SET(MODE_MOUSE)) {
 		mousereport(e);
 		return;
 	}
+
 	if(sel.mode) {
-		int oldey = sel.ey, oldex = sel.ex;
+		oldey = sel.ey;
+		oldex = sel.ex;
 		getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
 
 		if(oldey != sel.ey || oldex != sel.ex) {
-			int starty = MIN(oldey, sel.ey);
-			int endy = MAX(oldey, sel.ey);
+			starty = MIN(oldey, sel.ey);
+			endy = MAX(oldey, sel.ey);
 			tsetdirt(starty, endy);
 		}
 	}
@@ -785,11 +901,23 @@ void
 execsh(void) {
 	char **args;
 	char *envshell = getenv("SHELL");
+	const struct passwd *pass = getpwuid(getuid());
+	char buf[sizeof(long) * 8 + 1];
 
 	unsetenv("COLUMNS");
 	unsetenv("LINES");
 	unsetenv("TERMCAP");
 
+	if(pass) {
+		setenv("LOGNAME", pass->pw_name, 1);
+		setenv("USER", pass->pw_name, 1);
+		setenv("SHELL", pass->pw_shell, 0);
+		setenv("HOME", pass->pw_dir, 0);
+	}
+
+	snprintf(buf, sizeof(buf), "%lu", xw.win);
+	setenv("WINDOWID", buf, 1);
+
 	signal(SIGCHLD, SIG_DFL);
 	signal(SIGHUP, SIG_DFL);
 	signal(SIGINT, SIG_DFL);
@@ -797,9 +925,9 @@ execsh(void) {
 	signal(SIGTERM, SIG_DFL);
 	signal(SIGALRM, SIG_DFL);
 
-	DEFAULT(envshell, SHELL);
-	putenv("TERM="TNAME);
-	args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
+	DEFAULT(envshell, shell);
+	setenv("TERM", termname, 1);
+	args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
 	execvp(args[0], args);
 	exit(EXIT_FAILURE);
 }
@@ -807,20 +935,23 @@ execsh(void) {
 void
 sigchld(int a) {
 	int stat = 0;
+
 	if(waitpid(pid, &stat, 0) < 0)
 		die("Waiting for pid %hd failed: %s\n",	pid, SERRNO);
-	if(WIFEXITED(stat))
+
+	if(WIFEXITED(stat)) {
 		exit(WEXITSTATUS(stat));
-	else
+	} else {
 		exit(EXIT_FAILURE);
+	}
 }
 
 void
 ttynew(void) {
 	int m, s;
+	struct winsize w = {term.row, term.col, 0, 0};
 
 	/* seems to work fine on linux, openbsd and freebsd */
-	struct winsize w = {term.row, term.col, 0, 0};
 	if(openpty(&m, &s, NULL, NULL, &w) < 0)
 		die("openpty failed: %s\n", SERRNO);
 
@@ -844,13 +975,12 @@ ttynew(void) {
 		cmdfd = m;
 		signal(SIGCHLD, sigchld);
 		if(opt_io) {
-			if(!strcmp(opt_io, "-")) {
-				iofd = STDOUT_FILENO;
-			} else {
-				if((iofd = open(opt_io, O_WRONLY | O_CREAT, 0666)) < 0) {
-					fprintf(stderr, "Error opening %s:%s\n",
-						opt_io, strerror(errno));
-				}
+			iofd = (!strcmp(opt_io, "-")) ?
+				  STDOUT_FILENO :
+				  open(opt_io, O_WRONLY | O_CREAT, 0666);
+			if(iofd < 0) {
+				fprintf(stderr, "Error opening %s:%s\n",
+					opt_io, strerror(errno));
 			}
 		}
 	}
@@ -859,6 +989,7 @@ ttynew(void) {
 void
 dump(char c) {
 	static int col;
+
 	fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
 	if(++col % 10 == 0)
 		fprintf(stderr, "\n");
@@ -885,7 +1016,7 @@ ttyread(void) {
 		charsize = utf8decode(ptr, &utf8c);
 		utf8encode(&utf8c, s);
 		tputc(s, charsize);
-		ptr    += charsize;
+		ptr += charsize;
 		buflen -= charsize;
 	}
 
@@ -912,8 +1043,7 @@ ttyresize(void) {
 }
 
 void
-tsetdirt(int top, int bot)
-{
+tsetdirt(int top, int bot) {
 	int i;
 
 	LIMIT(top, 0, term.row-1);
@@ -924,8 +1054,7 @@ tsetdirt(int top, int bot)
 }
 
 void
-tfulldirt(void)
-{
+tfulldirt(void) {
 	tsetdirt(0, term.row-1);
 }
 
@@ -933,34 +1062,41 @@ void
 tcursor(int mode) {
 	static TCursor c;
 
-	if(mode == CURSOR_SAVE)
+	if(mode == CURSOR_SAVE) {
 		c = term.c;
-	else if(mode == CURSOR_LOAD)
-		term.c = c, tmoveto(c.x, c.y);
+	} else if(mode == CURSOR_LOAD) {
+		term.c = c;
+		tmoveto(c.x, c.y);
+	}
 }
 
 void
 treset(void) {
 	uint i;
+
 	term.c = (TCursor){{
 		.mode = ATTR_NULL,
-		.fg = DefaultFG,
-		.bg = DefaultBG
+		.fg = defaultfg,
+		.bg = defaultbg
 	}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
 
 	memset(term.tabs, 0, term.col * sizeof(*term.tabs));
-	for(i = TAB; i < term.col; i += TAB)
+	for(i = tabspaces; i < term.col; i += tabspaces)
 		term.tabs[i] = 1;
-	term.top = 0, term.bot = term.row - 1;
+	term.top = 0;
+	term.bot = term.row - 1;
 	term.mode = MODE_WRAP;
 
 	tclearregion(0, 0, term.col-1, term.row-1);
+	tmoveto(0, 0);
+	tcursor(CURSOR_SAVE);
 }
 
 void
 tnew(int col, int row) {
 	/* set screen size */
-	term.row = row, term.col = col;
+	term.row = row;
+	term.col = col;
 	term.line = xmalloc(term.row * sizeof(Line));
 	term.alt  = xmalloc(term.row * sizeof(Line));
 	term.dirty = xmalloc(term.row * sizeof(*term.dirty));
@@ -978,7 +1114,8 @@ tnew(int col, int row) {
 
 void
 tswapscreen(void) {
-	Line* tmp = term.line;
+	Line *tmp = term.line;
+
 	term.line = term.alt;
 	term.alt = tmp;
 	term.mode ^= MODE_ALTSCREEN;
@@ -1052,10 +1189,12 @@ selscroll(int orig, int n) {
 void
 tnewline(int first_col) {
 	int y = term.c.y;
-	if(y == term.bot)
+
+	if(y == term.bot) {
 		tscrollup(term.top, 1);
-	else
+	} else {
 		y++;
+	}
 	tmoveto(first_col ? 0 : term.c.x, y);
 }
 
@@ -1073,52 +1212,68 @@ csiparse(void) {
 			csiescseq.arg[csiescseq.narg] *= 10;
 			csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */;
 		}
-		if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ)
+		if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ) {
 			csiescseq.narg++, p++;
-		else {
+		} else {
 			csiescseq.mode = *p;
 			csiescseq.narg++;
+
 			return;
 		}
 	}
 }
 
+/* for absolute user moves, when decom is set */
+void
+tmoveato(int x, int y) {
+	tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
+}
+
 void
 tmoveto(int x, int y) {
+	int miny, maxy;
+
+	if(term.c.state & CURSOR_ORIGIN) {
+		miny = term.top;
+		maxy = term.bot;
+	} else {
+		miny = 0;
+		maxy = term.row - 1;
+	}
 	LIMIT(x, 0, term.col-1);
-	LIMIT(y, 0, term.row-1);
+	LIMIT(y, miny, maxy);
 	term.c.state &= ~CURSOR_WRAPNEXT;
 	term.c.x = x;
 	term.c.y = y;
 }
 
 void
-tsetchar(char *c) {
+tsetchar(char *c, Glyph *attr, int x, int y) {
+	static char *vt100_0[62] = { /* 0x41 - 0x7e */
+		"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
+		0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
+		0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
+		0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
+		"◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
+		"␤", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
+		"⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
+		"│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
+	};
+
 	/*
 	 * The table is proudly stolen from rxvt.
 	 */
-	if(term.c.attr.mode & ATTR_GFX) {
-		char *vt100_0[62] = { /* 0x41 - 0x7e */
-			"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
-			0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
-			0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
-			0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
-			"◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
-			"␤", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
-			"⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
-			"│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
-		};
-
+	if(attr->mode & ATTR_GFX) {
 		if(c[0] >= 0x41 && c[0] <= 0x7e
 				&& vt100_0[c[0] - 0x41]) {
 			c = vt100_0[c[0] - 0x41];
 		}
 	}
 
-	term.dirty[term.c.y] = 1;
-	term.line[term.c.y][term.c.x] = term.c.attr;
-	memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
-	term.line[term.c.y][term.c.x].state |= GLYPH_SET;
+	term.dirty[y] = 1;
+	term.line[y][x] = *attr;
+	memcpy(term.line[y][x].c, c, UTF_SIZ);
+	term.line[y][x].state |= GLYPH_SET;
 }
 
 void
@@ -1154,7 +1309,9 @@ tdeletechar(int n) {
 		tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
 		return;
 	}
-	memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
+
+	memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
+			size * sizeof(Glyph));
 	tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
 }
 
@@ -1170,7 +1327,9 @@ tinsertblank(int n) {
 		tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
 		return;
 	}
-	memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
+
+	memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
+			size * sizeof(Glyph));
 	tclearregion(src, term.c.y, dst - 1, term.c.y);
 }
 
@@ -1199,8 +1358,8 @@ tsetattr(int *attr, int l) {
 		case 0:
 			term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
 					| ATTR_ITALIC | ATTR_BLINK);
-			term.c.attr.fg = DefaultFG;
-			term.c.attr.bg = DefaultBG;
+			term.c.attr.fg = defaultfg;
+			term.c.attr.bg = defaultbg;
 			break;
 		case 1:
 			term.c.attr.mode |= ATTR_BOLD;
@@ -1236,42 +1395,55 @@ tsetattr(int *attr, int l) {
 		case 38:
 			if(i + 2 < l && attr[i + 1] == 5) {
 				i += 2;
-				if(BETWEEN(attr[i], 0, 255))
+				if(BETWEEN(attr[i], 0, 255)) {
 					term.c.attr.fg = attr[i];
-				else
-					fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
+				} else {
+					fprintf(stderr,
+						"erresc: bad fgcolor %d\n",
+						attr[i]);
+				}
+			} else {
+				fprintf(stderr,
+					"erresc(38): gfx attr %d unknown\n",
+					attr[i]);
 			}
-			else
-				fprintf(stderr, "erresc(38): gfx attr %d unknown\n", attr[i]);
 			break;
 		case 39:
-			term.c.attr.fg = DefaultFG;
+			term.c.attr.fg = defaultfg;
 			break;
 		case 48:
 			if(i + 2 < l && attr[i + 1] == 5) {
 				i += 2;
-				if(BETWEEN(attr[i], 0, 255))
+				if(BETWEEN(attr[i], 0, 255)) {
 					term.c.attr.bg = attr[i];
-				else
-					fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
+				} else {
+					fprintf(stderr,
+						"erresc: bad bgcolor %d\n",
+						attr[i]);
+				}
+			} else {
+				fprintf(stderr,
+					"erresc(48): gfx attr %d unknown\n",
+					attr[i]);
 			}
-			else
-				fprintf(stderr, "erresc(48): gfx attr %d unknown\n", attr[i]);
 			break;
 		case 49:
-			term.c.attr.bg = DefaultBG;
+			term.c.attr.bg = defaultbg;
 			break;
 		default:
-			if(BETWEEN(attr[i], 30, 37))
+			if(BETWEEN(attr[i], 30, 37)) {
 				term.c.attr.fg = attr[i] - 30;
-			else if(BETWEEN(attr[i], 40, 47))
+			} else if(BETWEEN(attr[i], 40, 47)) {
 				term.c.attr.bg = attr[i] - 40;
-			else if(BETWEEN(attr[i], 90, 97))
+			} else if(BETWEEN(attr[i], 90, 97)) {
 				term.c.attr.fg = attr[i] - 90 + 8;
-			else if(BETWEEN(attr[i], 100, 107))
+			} else if(BETWEEN(attr[i], 100, 107)) {
 				term.c.attr.bg = attr[i] - 100 + 8;
-			else
-				fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]), csidump();
+			} else {
+				fprintf(stderr,
+					"erresc(default): gfx attr %d unknown\n",
+					attr[i]), csidump();
+			}
 			break;
 		}
 	}
@@ -1297,32 +1469,40 @@ tsetscroll(int t, int b) {
 void
 tsetmode(bool priv, bool set, int *args, int narg) {
 	int *lim, mode;
+	bool alt;
 
 	for(lim = args + narg; args < lim; ++args) {
 		if(priv) {
 			switch(*args) {
 				break;
 			case 1: /* DECCKM -- Cursor key */
-				MODBIT(term.mode, set, MODE_APPKEYPAD);
+				MODBIT(term.mode, set, MODE_APPCURSOR);
 				break;
-			case 5: /* DECSCNM -- Reverve video */
+			case 5: /* DECSCNM -- Reverse video */
 				mode = term.mode;
 				MODBIT(term.mode, set, MODE_REVERSE);
 				if(mode != term.mode)
 					redraw();
 				break;
-			case 6: /* XXX: DECOM -- Origin */
+			case 6: /* DECOM -- Origin */
+				MODBIT(term.c.state, set, CURSOR_ORIGIN);
+				tmoveato(0, 0);
 				break;
 			case 7: /* DECAWM -- Auto wrap */
 				MODBIT(term.mode, set, MODE_WRAP);
 				break;
-			case 8: /* XXX: DECARM -- Auto repeat */
-				break;
 			case 0:  /* Error (IGNORED) */
+			case 2:  /* DECANM -- ANSI/VT52 (IGNORED) */
+			case 3:  /* DECCOLM -- Column  (IGNORED) */
+			case 4:  /* DECSCLM -- Scroll (IGNORED) */
+			case 8:  /* DECARM -- Auto repeat (IGNORED) */
+			case 18: /* DECPFF -- Printer feed (IGNORED) */
+			case 19: /* DECPEX -- Printer extent (IGNORED) */
+			case 42: /* DECNRCM -- National characters (IGNORED) */
 			case 12: /* att610 -- Start blinking cursor (IGNORED) */
 				break;
-			case 25:
-				MODBIT(term.c.state, !set, CURSOR_HIDE);
+			case 25: /* DECTCEM -- Text Cursor Enable Mode */
+				MODBIT(term.mode, !set, MODE_HIDE);
 				break;
 			case 1000: /* 1000,1002: enable xterm mouse report */
 				MODBIT(term.mode, set, MODE_MOUSEBTN);
@@ -1332,26 +1512,20 @@ tsetmode(bool priv, bool set, int *args, int narg) {
 				break;
 			case 1049: /* = 1047 and 1048 */
 			case 47:
-			case 1047:
-				if(IS_SET(MODE_ALTSCREEN))
+			case 1047: {
+				alt = IS_SET(MODE_ALTSCREEN) != 0;
+				if(alt)
 					tclearregion(0, 0, term.col-1, term.row-1);
-				if((set && !IS_SET(MODE_ALTSCREEN)) ||
-				    (!set && IS_SET(MODE_ALTSCREEN))) {
-					    tswapscreen();
-				}
+				if(set ^ alt)		/* set is always 1 or 0 */
+					tswapscreen();
 				if(*args != 1049)
 					break;
+			}
 				/* pass through */
 			case 1048:
 				tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
 				break;
 			default:
-			/* case 2:  DECANM -- ANSI/VT52 (NOT SUPPOURTED) */
-			/* case 3:  DECCOLM -- Column  (NOT SUPPORTED) */
-			/* case 4:  DECSCLM -- Scroll (NOT SUPPORTED) */
-			/* case 18: DECPFF -- Printer feed (NOT SUPPORTED) */
-			/* case 19: DECPEX -- Printer extent (NOT SUPPORTED) */
-			/* case 42: DECNRCM -- National characters (NOT SUPPORTED) */
 				fprintf(stderr,
 					"erresc: unknown private set/reset mode %d\n",
 					*args);
@@ -1367,7 +1541,8 @@ tsetmode(bool priv, bool set, int *args, int narg) {
 			case 4:  /* IRM -- Insertion-replacement */
 				MODBIT(term.mode, set, MODE_INSERT);
 				break;
-			case 12: /* XXX: SRM -- Send/Receive */
+			case 12: /* SRM -- Send/Receive */
+				MODBIT(term.mode, !set, MODE_ECHO);
 				break;
 			case 20: /* LNM -- Linefeed/new line */
 				MODBIT(term.mode, set, MODE_CRLF);
@@ -1398,16 +1573,20 @@ csihandle(void) {
 		tinsertblank(csiescseq.arg[0]);
 		break;
 	case 'A': /* CUU -- Cursor <n> Up */
-	case 'e':
 		DEFAULT(csiescseq.arg[0], 1);
 		tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
 		break;
 	case 'B': /* CUD -- Cursor <n> Down */
+	case 'e': /* VPR --Cursor <n> Down */
 		DEFAULT(csiescseq.arg[0], 1);
 		tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
 		break;
+	case 'c': /* DA -- Device Attributes */
+		if(csiescseq.arg[0] == 0)
+			ttywrite(VT102ID, sizeof(VT102ID) - 1);
+		break;
 	case 'C': /* CUF -- Cursor <n> Forward */
-	case 'a':
+	case 'a': /* HPR -- Cursor <n> Forward */
 		DEFAULT(csiescseq.arg[0], 1);
 		tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
 		break;
@@ -1444,7 +1623,7 @@ csihandle(void) {
 	case 'f': /* HVP */
 		DEFAULT(csiescseq.arg[0], 1);
 		DEFAULT(csiescseq.arg[1], 1);
-		tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
+		tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
 		break;
 	case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
 		DEFAULT(csiescseq.arg[0], 1);
@@ -1518,7 +1697,7 @@ csihandle(void) {
 		break;
 	case 'd': /* VPA -- Move to <row> */
 		DEFAULT(csiescseq.arg[0], 1);
-		tmoveto(term.c.x, csiescseq.arg[0]-1);
+		tmoveato(term.c.x, csiescseq.arg[0]-1);
 		break;
 	case 'h': /* SM -- Set terminal mode */
 		tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
@@ -1527,13 +1706,13 @@ csihandle(void) {
 		tsetattr(csiescseq.arg, csiescseq.narg);
 		break;
 	case 'r': /* DECSTBM -- Set Scrolling Region */
-		if(csiescseq.priv)
+		if(csiescseq.priv) {
 			goto unknown;
-		else {
+		} else {
 			DEFAULT(csiescseq.arg[0], 1);
 			DEFAULT(csiescseq.arg[1], term.row);
 			tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
-			tmoveto(0, 0);
+			tmoveato(0, 0);
 		}
 		break;
 	case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
@@ -1548,14 +1727,22 @@ csihandle(void) {
 void
 csidump(void) {
 	int i;
+	uint c;
+
 	printf("ESC[");
 	for(i = 0; i < csiescseq.len; i++) {
-		uint c = csiescseq.buf[i] & 0xff;
-		if(isprint(c)) putchar(c);
-		else if(c == '\n') printf("(\\n)");
-		else if(c == '\r') printf("(\\r)");
-		else if(c == 0x1b) printf("(\\e)");
-		else printf("(%02x)", c);
+		c = csiescseq.buf[i] & 0xff;
+		if(isprint(c)) {
+			putchar(c);
+		} else if(c == '\n') {
+			printf("(\\n)");
+		} else if(c == '\r') {
+			printf("(\\r)");
+		} else if(c == 0x1b) {
+			printf("(\\e)");
+		} else {
+			printf("(%02x)", c);
+		}
 	}
 	putchar('\n');
 }
@@ -1626,14 +1813,22 @@ strparse(void) {
 void
 strdump(void) {
 	int i;
+	uint c;
+
 	printf("ESC%c", strescseq.type);
 	for(i = 0; i < strescseq.len; i++) {
-		uint c = strescseq.buf[i] & 0xff;
-		if(isprint(c)) putchar(c);
-		else if(c == '\n') printf("(\\n)");
-		else if(c == '\r') printf("(\\r)");
-		else if(c == 0x1b) printf("(\\e)");
-		else printf("(%02x)", c);
+		c = strescseq.buf[i] & 0xff;
+		if(isprint(c)) {
+			putchar(c);
+		} else if(c == '\n') {
+			printf("(\\n)");
+		} else if(c == '\r') {
+			printf("(\\r)");
+		} else if(c == 0x1b) {
+			printf("(\\e)");
+		} else {
+			printf("(%02x)", c);
+		}
 	}
 	printf("ESC\\\n");
 }
@@ -1662,64 +1857,118 @@ tputtab(bool forward) {
 }
 
 void
-tputc(char *c, int len) {
-	uchar ascii = *c;
-
-	if(iofd != -1)
-		write(iofd, c, len);
+techo(char *buf, int len) {
+	for(; len > 0; buf++, len--) {
+		char c = *buf;
 
-	switch(ascii) {
-	case '\t':
-		tputtab(1);
-		return;
-	case '\b':
-		tmoveto(term.c.x-1, term.c.y);
-		return;
-	case '\r':
-		tmoveto(0, term.c.y);
-		return;
-	case '\f':
-	case '\v':
-	case '\n':
-		/* go to first col if the mode is set */
-		tnewline(IS_SET(MODE_CRLF));
-		return;
-	case '\a':
-		if(term.esc & ESC_STR)
+		if(c == '\033') {		/* escape */
+			tputc("^", 1);
+			tputc("[", 1);
+		} else if (c < '\x20') {	/* control code */
+			if(c != '\n' && c != '\r' && c != '\t') {
+				c |= '\x40';
+				tputc("^", 1);
+			}
+			tputc(&c, 1);
+		} else {
 			break;
+		}
+	}
+	if (len)
+		tputc(buf, len);
+}
 
-		if(!(xw.state & WIN_FOCUSED))
-			xseturgency(1);
-		return;
-	case '\033':
-		csireset();
-		term.esc = ESC_START;
+void
+tputc(char *c, int len) {
+	uchar ascii = *c;
+	bool control = ascii < '\x20' || ascii == 0177;
+
+	if(iofd != -1) {
+		if (xwrite(iofd, c, len) < 0) {
+			fprintf(stderr, "Error writting in %s:%s\n",
+				opt_io, strerror(errno));
+			close(iofd);
+			iofd = -1;
+		}
+	}
+	/*
+	 * STR sequences must be checked before anything else
+	 * because it can use some control codes as part of the sequence.
+	 */
+	if(term.esc & ESC_STR) {
+		switch(ascii) {
+		case '\033':
+			term.esc = ESC_START | ESC_STR_END;
+			break;
+		case '\a': /* backwards compatibility to xterm */
+			term.esc = 0;
+			strhandle();
+			break;
+		default:
+			strescseq.buf[strescseq.len++] = ascii;
+			if(strescseq.len+1 >= STR_BUF_SIZ) {
+				term.esc = 0;
+				strhandle();
+			}
+		}
 		return;
 	}
 
-	if(term.esc & ESC_START) {
+	/*
+	 * Actions of control codes must be performed as soon they arrive
+	 * because they can be embedded inside a control sequence, and
+	 * they must not cause conflicts with sequences.
+	 */
+	if(control) {
+		switch(ascii) {
+		case '\t':	/* HT */
+			tputtab(1);
+			return;
+		case '\b':	/* BS */
+			tmoveto(term.c.x-1, term.c.y);
+			return;
+		case '\r':	/* CR */
+			tmoveto(0, term.c.y);
+			return;
+		case '\f':	/* LF */
+		case '\v':	/* VT */
+		case '\n':	/* LF */
+			/* go to first col if the mode is set */
+			tnewline(IS_SET(MODE_CRLF));
+			return;
+		case '\a':	/* BEL */
+			if(!(xw.state & WIN_FOCUSED))
+				xseturgency(1);
+			return;
+		case '\033':	/* ESC */
+			csireset();
+			term.esc = ESC_START;
+			return;
+		case '\016':	/* SO */
+			term.c.attr.mode |= ATTR_GFX;
+			return;
+		case '\017':	/* SI */
+			term.c.attr.mode &= ~ATTR_GFX;
+			return;
+		case '\032':	/* SUB */
+		case '\030':	/* CAN */
+			csireset();
+			return;
+		case '\005':	/* ENQ (IGNORED) */
+		case '\000':	/* NUL (IGNORED) */
+		case '\021':	/* XON (IGNORED) */
+		case '\023':	/* XOFF (IGNORED) */
+		case 0177:	/* DEL (IGNORED) */
+			return;
+		}
+	} else if(term.esc & ESC_START) {
 		if(term.esc & ESC_CSI) {
 			csiescseq.buf[csiescseq.len++] = ascii;
-			if(BETWEEN(ascii, 0x40, 0x7E) || csiescseq.len >= ESC_BUF_SIZ) {
+			if(BETWEEN(ascii, 0x40, 0x7E)
+					|| csiescseq.len >= ESC_BUF_SIZ) {
 				term.esc = 0;
 				csiparse(), csihandle();
 			}
-		} else if(term.esc & ESC_STR) {
-			switch(ascii) {
-			case '\033':
-				term.esc = ESC_START | ESC_STR_END;
-				break;
-			case '\a': /* backwards compatibility to xterm */
-				term.esc = 0;
-				strhandle();
-				break;
-			default:
-				strescseq.buf[strescseq.len++] = ascii;
-				if(strescseq.len+1 >= STR_BUF_SIZ) {
-					term.esc = 0;
-					strhandle();
-				}
-			}
 		} else if(term.esc & ESC_STR_END) {
 			term.esc = 0;
 			if(ascii == '\\')
@@ -1742,11 +1991,25 @@ tputc(char *c, int len) {
 				fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
 			}
 			term.esc = 0;
+		} else if(term.esc & ESC_TEST) {
+			if(ascii == '8') { /* DEC screen alignment test. */
+				char E[UTF_SIZ] = "E";
+				int x, y;
+
+				for(x = 0; x < term.col; ++x) {
+					for(y = 0; y < term.row; ++y)
+						tsetchar(E, &term.c.attr, x, y);
+				}
+			}
+			term.esc = 0;
 		} else {
 			switch(ascii) {
 			case '[':
 				term.esc |= ESC_CSI;
 				break;
+			case '#':
+				term.esc |= ESC_TEST;
+				break;
 			case 'P': /* DCS -- Device Control String */
 			case '_': /* APC -- Application Program Command */
 			case '^': /* PM -- Privacy Message */
@@ -1765,10 +2028,11 @@ tputc(char *c, int len) {
 				term.esc = 0;
 				break;
 			case 'D': /* IND -- Linefeed */
-				if(term.c.y == term.bot)
+				if(term.c.y == term.bot) {
 					tscrollup(term.top, 1);
-				else
+				} else {
 					tmoveto(term.c.x, term.c.y+1);
+				}
 				term.esc = 0;
 				break;
 			case 'E': /* NEL -- Next line */
@@ -1780,16 +2044,20 @@ tputc(char *c, int len) {
 				term.esc = 0;
 				break;
 			case 'M': /* RI -- Reverse index */
-				if(term.c.y == term.top)
+				if(term.c.y == term.top) {
 					tscrolldown(term.top, 1);
-				else
+				} else {
 					tmoveto(term.c.x, term.c.y-1);
+				}
+				term.esc = 0;
+				break;
+			case 'Z': /* DECID -- Identify Terminal */
+				ttywrite(VT102ID, sizeof(VT102ID) - 1);
 				term.esc = 0;
 				break;
 			case 'c': /* RIS -- Reset to inital state */
 				treset();
 				term.esc = 0;
-				xclearborders();
 				xresettitle();
 				break;
 			case '=': /* DECPAM -- Application keypad */
@@ -1813,23 +2081,30 @@ tputc(char *c, int len) {
 				break;
 			default:
 				fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
-				    (uchar) ascii, isprint(ascii)?ascii:'.');
+					(uchar) ascii, isprint(ascii)? ascii:'.');
 				term.esc = 0;
 			}
 		}
-	} else {
-		if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
-			sel.bx = -1;
-		if(ascii >= '\020' || term.c.attr.mode & ATTR_GFX) {
-			if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
-				tnewline(1); /* always go to first col */
-			tsetchar(c);
-			if(term.c.x+1 < term.col)
-				tmoveto(term.c.x+1, term.c.y);
-			else
-				term.c.state |= CURSOR_WRAPNEXT;
-		}
+		/*
+		 * All characters which forms part of a sequence are not
+		 * printed
+		 */
+		return;
 	}
+	/*
+	 * Display control codes only if we are in graphic mode
+	 */
+	if(control && !(term.c.attr.mode & ATTR_GFX))
+		return;
+	if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
+		sel.bx = -1;
+	if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
+		tnewline(1); /* always go to first col */
+	tsetchar(c, &term.c.attr, term.c.x, term.c.y);
+	if(term.c.x+1 < term.col)
+		tmoveto(term.c.x+1, term.c.y);
+	else
+		term.c.state |= CURSOR_WRAPNEXT;
 }
 
 int
@@ -1838,6 +2113,7 @@ tresize(int col, int row) {
 	int minrow = MIN(row, term.row);
 	int mincol = MIN(col, term.col);
 	int slide = term.c.y - row + 1;
+	bool *bp;
 
 	if(col < 1 || row < 1)
 		return 0;
@@ -1884,80 +2160,77 @@ tresize(int col, int row) {
 		term.alt [i] = xcalloc(col, sizeof(Glyph));
 	}
 	if(col > term.col) {
-		bool *bp = term.tabs + term.col;
+		bp = term.tabs + term.col;
 
 		memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
 		while(--bp > term.tabs && !*bp)
 			/* nothing */ ;
-		for(bp += TAB; bp < term.tabs + col; bp += TAB)
+		for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
 			*bp = 1;
 	}
 	/* update terminal size */
-	term.col = col, term.row = row;
-	/* make use of the LIMIT in tmoveto */
-	tmoveto(term.c.x, term.c.y);
+	term.col = col;
+	term.row = row;
 	/* reset scrolling region */
 	tsetscroll(0, row-1);
+	/* make use of the LIMIT in tmoveto */
+	tmoveto(term.c.x, term.c.y);
 
 	return (slide > 0);
 }
 
 void
 xresize(int col, int row) {
-	xw.tw = MAX(1, 2*BORDER + col * xw.cw);
-	xw.th = MAX(1, 2*BORDER + row * xw.ch);
+	xw.tw = MAX(1, 2*borderpx + col * xw.cw);
+	xw.th = MAX(1, 2*borderpx + row * xw.ch);
 
-	XftDrawChange(xw.xft_draw, xw.buf);
+	XftDrawChange(xw.draw, xw.buf);
 }
 
 void
 xloadcols(void) {
 	int i, r, g, b;
-	XRenderColor xft_color = { .alpha = 0 };
-
-	/* load default white color */
-	if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[256], &dc.xft_col[256]))
-		die("Could not allocate color '%s'\n", colorname[256]);
+	XRenderColor color = { .alpha = 0 };
 
 	/* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
 	for(i = 0; i < LEN(colorname); i++) {
 		if(!colorname[i])
 			continue;
-		if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.xft_col[i])) {
-			dc.xft_col[i] = dc.xft_col[256];
-			fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
+		if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
+			die("Could not allocate color '%s'\n", colorname[i]);
 		}
 	}
 
 	/* load colors [16-255] ; same colors as xterm */
-	for(i = 16, r = 0; r < 6; r++)
-		for(g = 0; g < 6; g++)
+	for(i = 16, r = 0; r < 6; r++) {
+		for(g = 0; g < 6; g++) {
 			for(b = 0; b < 6; b++) {
-				xft_color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
-				xft_color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
-				xft_color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
-				if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
-					dc.xft_col[i] = dc.xft_col[256];
-					fprintf(stderr, "Could not allocate color %d\n", i);
+				color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
+				color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
+				color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
+				if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
+					die("Could not allocate color %d\n", i);
 				}
 				i++;
 			}
+		}
+	}
 
 	for(r = 0; r < 24; r++, i++) {
-		xft_color.red = xft_color.green = xft_color.blue = 0x0808 + 0x0a0a * r;
-		if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
-			dc.xft_col[i] = dc.xft_col[256];
-			fprintf(stderr, "Could not allocate color %d\n", i);
+		color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
+		if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
+					&dc.col[i])) {
+			die("Could not allocate color %d\n", i);
 		}
 	}
 }
 
 void
 xtermclear(int col1, int row1, int col2, int row2) {
-	XftDrawRect(xw.xft_draw,
-			&dc.xft_col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG],
-			BORDER + col1 * xw.cw,
-			BORDER + row1 * xw.ch,
+	XftDrawRect(xw.draw,
+			&dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
+			borderpx + col1 * xw.cw,
+			borderpx + row1 * xw.ch,
 			(col2-col1+1) * xw.cw,
 			(row2-row1+1) * xw.ch);
 }
@@ -1967,26 +2240,14 @@ xtermclear(int col1, int row1, int col2, int row2) {
  */
 void
 xclear(int x1, int y1, int x2, int y2) {
-	XftDrawRect(xw.xft_draw,
-			&dc.xft_col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG],
+	XftDrawRect(xw.draw,
+			&dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
 			x1, y1, x2-x1, y2-y1);
 }
 
 void
-xclearborders(void) {
-	/* top and left border */
-	xclear(0, 0, BORDER, xw.h);
-	xclear(0, 0, xw.w, BORDER);
-
-	/* lower and right border */
-	xclear(BORDER, xw.th - 1, xw.w, xw.h);
-	/* Will just draw what hasn't been drawn by the previous call. */
-	xclear(xw.tw - 1, BORDER, xw.w, xw.h - xw.th - 2);
-}
-
-void
 xhints(void) {
-	XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
+	XClassHint class = {opt_class ? opt_class : termname, termname};
 	XWMHints wm = {.flags = InputHint, .input = 1};
 	XSizeHints *sizeh = NULL;
 
@@ -1997,8 +2258,8 @@ xhints(void) {
 		sizeh->width = xw.w;
 		sizeh->height_inc = xw.ch;
 		sizeh->width_inc = xw.cw;
-		sizeh->base_height = 2*BORDER;
-		sizeh->base_width = 2*BORDER;
+		sizeh->base_height = 2*borderpx;
+		sizeh->base_width = 2*borderpx;
 	} else {
 		sizeh->flags = PMaxSize | PMinSize;
 		sizeh->min_width = sizeh->max_width = xw.fw;
@@ -2009,25 +2270,93 @@ xhints(void) {
 	XFree(sizeh);
 }
 
-void
-xinitfont(Font *f, char *fontstr) {
-	f->xft_set = XftFontOpenName(xw.dpy, xw.scr, fontstr);
+int
+xloadfont(Font *f, FcPattern *pattern) {
+	FcPattern *match;
+	FcResult result;
 
-	if(!f->xft_set)
-		die("st: can't open font %s.\n", fontstr);
+	match = XftFontMatch(xw.dpy, xw.scr, pattern, &result);
+	if(!match)
+		return 1;
+	if(!(f->set = XftFontOpenPattern(xw.dpy, match))) {
+		FcPatternDestroy(match);
+		return 1;
+	}
 
-	f->ascent = f->xft_set->ascent;
-	f->descent = f->xft_set->descent;
+	f->ascent = f->set->ascent;
+	f->descent = f->set->descent;
 	f->lbearing = 0;
-	f->rbearing = f->xft_set->max_advance_width;
+	f->rbearing = f->set->max_advance_width;
+
+	f->height = f->set->height;
+	f->width = f->lbearing + f->rbearing;
+
+	return 0;
 }
 
 void
-initfonts(char *fontstr, char *bfontstr, char *ifontstr, char *ibfontstr) {
-	xinitfont(&dc.font, fontstr);
-	xinitfont(&dc.bfont, bfontstr);
-	xinitfont(&dc.ifont, ifontstr);
-	xinitfont(&dc.ibfont, ibfontstr);
+xloadfonts(char *fontstr, int fontsize) {
+	FcPattern *pattern;
+	FcResult result;
+	double fontval;
+
+	if(fontstr[0] == '-') {
+		pattern = XftXlfdParse(fontstr, False, False);
+	} else {
+		pattern = FcNameParse((FcChar8 *)fontstr);
+	}
+
+	if(!pattern)
+		die("st: can't open font %s\n", fontstr);
+
+	if(fontsize > 0) {
+		FcPatternDel(pattern, FC_PIXEL_SIZE);
+		FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
+		usedfontsize = fontsize;
+	} else {
+		result = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
+		if(result == FcResultMatch) {
+			usedfontsize = (int)fontval;
+		} else {
+			/*
+			 * Default font size is 12, if none given. This is to
+			 * have a known usedfontsize value.
+			 */
+			FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
+			usedfontsize = 12;
+		}
+	}
+
+	if(xloadfont(&dc.font, pattern))
+		die("st: can't open font %s\n", fontstr);
+
+	/* Setting character width and height. */
+	xw.cw = dc.font.width;
+	xw.ch = dc.font.height;
+
+	FcPatternDel(pattern, FC_WEIGHT);
+	FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
+	if(xloadfont(&dc.bfont, pattern))
+		die("st: can't open font %s\n", fontstr);
+
+	FcPatternDel(pattern, FC_SLANT);
+	FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
+	if(xloadfont(&dc.ibfont, pattern))
+		die("st: can't open font %s\n", fontstr);
+
+	FcPatternDel(pattern, FC_WEIGHT);
+	if(xloadfont(&dc.ifont, pattern))
+		die("st: can't open font %s\n", fontstr);
+
+	FcPatternDestroy(pattern);
+}
+
+void
+xzoom(const Arg *arg)
+{
+	xloadfonts(usedfont, usedfontsize + arg->i);
+	cresize(0, 0);
+	draw();
 }
 
 void
@@ -2043,11 +2372,8 @@ xinit(void) {
 	xw.vis = XDefaultVisual(xw.dpy, xw.scr);
 
 	/* font */
-	initfonts(FONT, BOLDFONT, ITALICFONT, ITALICBOLDFONT);
-
-	/* XXX: Assuming same size for bold font */
-	xw.cw = dc.font.rbearing - dc.font.lbearing;
-	xw.ch = dc.font.ascent + dc.font.descent;
+	usedfont = (opt_font == NULL)? font : opt_font;
+	xloadfonts(usedfont, 0);
 
 	/* colors */
 	xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
@@ -2066,14 +2392,14 @@ xinit(void) {
 		xw.w = xw.fw;
 	} else {
 		/* window - default size */
-		xw.h = 2*BORDER + term.row * xw.ch;
-		xw.w = 2*BORDER + term.col * xw.cw;
+		xw.h = 2*borderpx + term.row * xw.ch;
+		xw.w = 2*borderpx + term.col * xw.cw;
 		xw.fx = 0;
 		xw.fy = 0;
 	}
 
-	attrs.background_pixel = dc.xft_col[DefaultBG].pixel;
-	attrs.border_pixel = dc.xft_col[DefaultBG].pixel;
+	attrs.background_pixel = dc.col[defaultbg].pixel;
+	attrs.border_pixel = dc.col[defaultbg].pixel;
 	attrs.bit_gravity = NorthWestGravity;
 	attrs.event_mask = FocusChangeMask | KeyPressMask
 		| ExposureMask | VisibilityChangeMask | StructureNotifyMask
@@ -2094,15 +2420,13 @@ xinit(void) {
 	xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
 
 	/* Xft rendering context */
-	xw.xft_draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
+	xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
 
 	/* input methods */
 	xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
 	xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
 					   | XIMStatusNothing, XNClientWindow, xw.win,
 					   XNFocusWindow, xw.win, NULL);
-	/* gc */
-	dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
 
 	/* white cursor, black outline */
 	cursor = XCreateFontCursor(xw.dpy, XC_xterm);
@@ -2112,6 +2436,8 @@ xinit(void) {
 		&(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
 
 	xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
+	xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
+	XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
 
 	xresettitle();
 	XMapWindow(xw.dpy, xw.win);
@@ -2121,49 +2447,99 @@ xinit(void) {
 
 void
 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
-	int fg = base.fg, bg = base.bg, temp;
-	int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
+	int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
+	    width = charlen * xw.cw;
 	Font *font = &dc.font;
 	XGlyphInfo extents;
-
-	/* only switch default fg/bg if term is in RV mode */
-	if(IS_SET(MODE_REVERSE)) {
-		if(fg == DefaultFG)
-			fg = DefaultBG;
-		if(bg == DefaultBG)
-			bg = DefaultFG;
-	}
-
-	if(base.mode & ATTR_REVERSE)
-		temp = fg, fg = bg, bg = temp;
+	Colour *fg = &dc.col[base.fg], *bg = &dc.col[base.bg],
+		 *temp, revfg, revbg;
+	XRenderColor colfg, colbg;
 
 	if(base.mode & ATTR_BOLD) {
-		fg += 8;
+		if(BETWEEN(base.fg, 0, 7)) {
+			/* basic system colors */
+			fg = &dc.col[base.fg + 8];
+		} else if(BETWEEN(base.fg, 16, 195)) {
+			/* 256 colors */
+			fg = &dc.col[base.fg + 36];
+		} else if(BETWEEN(base.fg, 232, 251)) {
+			/* greyscale */
+			fg = &dc.col[base.fg + 4];
+		}
+		/*
+		 * Those ranges will not be brightened:
+		 *	8 - 15 – bright system colors
+		 *	196 - 231 – highest 256 color cube
+		 *	252 - 255 – brightest colors in greyscale
+		 */
 		font = &dc.bfont;
 	}
 
 	if(base.mode & ATTR_ITALIC)
 		font = &dc.ifont;
-	if(base.mode & (ATTR_ITALIC|ATTR_ITALIC))
+	if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD))
 		font = &dc.ibfont;
 
-	XftTextExtentsUtf8(xw.dpy, font->xft_set, (FcChar8 *)s, bytelen, &extents);
+	if(IS_SET(MODE_REVERSE)) {
+		if(fg == &dc.col[defaultfg]) {
+			fg = &dc.col[defaultbg];
+		} else {
+			colfg.red = ~fg->color.red;
+			colfg.green = ~fg->color.green;
+			colfg.blue = ~fg->color.blue;
+			colfg.alpha = fg->color.alpha;
+			XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
+			fg = &revfg;
+		}
+
+		if(bg == &dc.col[defaultbg]) {
+			bg = &dc.col[defaultfg];
+		} else {
+			colbg.red = ~bg->color.red;
+			colbg.green = ~bg->color.green;
+			colbg.blue = ~bg->color.blue;
+			colbg.alpha = bg->color.alpha;
+			XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &revbg);
+			bg = &revbg;
+		}
+	}
+
+	if(base.mode & ATTR_REVERSE)
+		temp = fg, fg = bg, bg = temp;
+
+	XftTextExtentsUtf8(xw.dpy, font->set, (FcChar8 *)s, bytelen,
+			&extents);
 	width = extents.xOff;
-	XftDrawRect(xw.xft_draw, &dc.xft_col[bg], winx, winy - font->ascent, width, xw.ch);
-	XftDrawStringUtf8(xw.xft_draw, &dc.xft_col[fg], font->xft_set, winx, winy, (FcChar8 *)s, bytelen);
+
+	/* Intelligent cleaning up of the borders. */
+	if(x == 0) {
+		xclear(0, (y == 0)? 0 : winy, borderpx,
+			winy + xw.ch + (y == term.row-1)? xw.h : 0);
+	}
+	if(x + charlen >= term.col-1) {
+		xclear(winx + width, (y == 0)? 0 : winy, xw.w,
+			(y == term.row-1)? xw.h : (winy + xw.ch));
+	}
+	if(y == 0)
+		xclear(winx, 0, winx + width, borderpx);
+	if(y == term.row-1)
+		xclear(winx, winy + xw.ch, winx + width, xw.h);
+
+	XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
+	XftDrawStringUtf8(xw.draw, fg, font->set, winx,
+			winy + font->ascent, (FcChar8 *)s, bytelen);
 
 	if(base.mode & ATTR_UNDERLINE) {
-		XftDrawRect(xw.xft_draw, &dc.xft_col[fg], winx, winy+1,
+		XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
 				width, 1);
 	}
 }
 
 void
 xdrawcursor(void) {
-	static int oldx = 0;
-	static int oldy = 0;
+	static int oldx = 0, oldy = 0;
 	int sl;
-	Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
+	Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs, 0};
 
 	LIMIT(oldx, 0, term.col-1);
 	LIMIT(oldy, 0, term.row-1);
@@ -2174,17 +2550,19 @@ xdrawcursor(void) {
 	/* remove the old cursor */
 	if(term.line[oldy][oldx].state & GLYPH_SET) {
 		sl = utf8size(term.line[oldy][oldx].c);
-		xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
-	} else
+		xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
+				oldy, 1, sl);
+	} else {
 		xtermclear(oldx, oldy, oldx, oldy);
+	}
 
 	/* draw the new one */
-	if(!(term.c.state & CURSOR_HIDE)) {
+	if(!(IS_SET(MODE_HIDE))) {
 		if(!(xw.state & WIN_FOCUSED))
-			g.bg = DefaultUCS;
+			g.bg = defaultucs;
 
 		if(IS_SET(MODE_REVERSE))
-			g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
+			g.mode |= ATTR_REVERSE, g.fg = defaultcs, g.bg = defaultfg;
 
 		sl = utf8size(g.c);
 		xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
@@ -2201,7 +2579,6 @@ void
 redraw(void) {
 	struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
 
-	xclearborders();
 	tfulldirt();
 	draw();
 	XSync(xw.dpy, False); /* necessary for a good tput flash */
@@ -2221,9 +2598,9 @@ drawregion(int x1, int y1, int x2, int y2) {
 	int ic, ib, x, y, ox, sl;
 	Glyph base, new;
 	char buf[DRAW_BUF_SIZ];
-	bool ena_sel = sel.bx != -1, alt = IS_SET(MODE_ALTSCREEN);
+	bool ena_sel = sel.bx != -1, alt = IS_SET(MODE_ALTSCREEN) != 0;
 
-	if((sel.alt && !alt) || (!sel.alt && alt))
+	if((sel.alt != 0) ^ alt)
 		ena_sel = 0;
 	if(!(xw.state & WIN_VISIBLE))
 		return;
@@ -2231,6 +2608,7 @@ drawregion(int x1, int y1, int x2, int y2) {
 	for(y = y1; y < y2; y++) {
 		if(!term.dirty[y])
 			continue;
+
 		xtermclear(0, y, term.col, y);
 		term.dirty[y] = 0;
 		base = term.line[y][0];
@@ -2239,8 +2617,9 @@ drawregion(int x1, int y1, int x2, int y2) {
 			new = term.line[y][x];
 			if(ena_sel && *(new.c) && selected(x, y))
 				new.mode ^= ATTR_REVERSE;
-			if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
-						  ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
+			if(ib > 0 && (!(new.state & GLYPH_SET)
+					|| ATTRCMP(base, new)
+					|| ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
 				xdraws(buf, base, ox, y, ic, ib);
 				ic = ib = 0;
 			}
@@ -2264,6 +2643,7 @@ drawregion(int x1, int y1, int x2, int y2) {
 void
 expose(XEvent *ev) {
 	XExposeEvent *e = &ev->xexpose;
+
 	if(xw.state & WIN_REDRAW) {
 		if(!e->count)
 			xw.state &= ~WIN_REDRAW;
@@ -2273,11 +2653,13 @@ expose(XEvent *ev) {
 void
 visibility(XEvent *ev) {
 	XVisibilityEvent *e = &ev->xvisibility;
-	if(e->state == VisibilityFullyObscured)
+
+	if(e->state == VisibilityFullyObscured) {
 		xw.state &= ~WIN_VISIBLE;
-	else if(!(xw.state & WIN_VISIBLE))
+	} else if(!(xw.state & WIN_VISIBLE)) {
 		/* need a full redraw for next Expose, not just a buf copy */
 		xw.state |= WIN_VISIBLE | WIN_REDRAW;
+	}
 }
 
 void
@@ -2288,6 +2670,7 @@ unmap(XEvent *ev) {
 void
 xseturgency(int add) {
 	XWMHints *h = XGetWMHints(xw.dpy, xw.win);
+
 	h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
 	XSetWMHints(xw.dpy, xw.win, h);
 	XFree(h);
@@ -2296,21 +2679,50 @@ xseturgency(int add) {
 void
 focus(XEvent *ev) {
 	if(ev->type == FocusIn) {
+		XSetICFocus(xw.xic);
 		xw.state |= WIN_FOCUSED;
 		xseturgency(0);
-	} else
+	} else {
+		XUnsetICFocus(xw.xic);
 		xw.state &= ~WIN_FOCUSED;
+	}
 }
 
 char*
 kmap(KeySym k, uint state) {
-	int i;
+	uint mask;
+	Key *kp;
+
 	state &= ~Mod2Mask;
-	for(i = 0; i < LEN(key); i++) {
-		uint mask = key[i].mask;
-		if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
-			return (char*)key[i].s;
+	for(kp = key; kp < key + LEN(key); kp++) {
+		mask = kp->mask;
+
+		if(kp->k != k)
+			continue;
+
+		if((state & mask) != mask &&
+				(mask == XK_NO_MOD && state)) {
+			continue;
+		}
+
+		if((kp->appkey < 0 && IS_SET(MODE_APPKEYPAD)) ||
+				(kp->appkey > 0 && !IS_SET(MODE_APPKEYPAD))) {
+			continue;
+		}
+
+		if((kp->appcursor < 0 && IS_SET(MODE_APPCURSOR)) ||
+				(kp->appcursor > 0 && !IS_SET(MODE_APPCURSOR))) {
+			continue;
+		}
+
+		if((kp->crlf < 0 && IS_SET(MODE_CRLF)) ||
+				(kp->crlf > 0 && !IS_SET(MODE_CRLF))) {
+			continue;
+		}
+
+		return kp->s;
 	}
+
 	return NULL;
 }
 
@@ -2318,54 +2730,47 @@ void
 kpress(XEvent *ev) {
 	XKeyEvent *e = &ev->xkey;
 	KeySym ksym;
-	char buf[32];
-	char *customkey;
-	int len;
-	int meta;
-	int shift;
+	char xstr[31], buf[32], *customkey, *cp = buf;
+	int len, i;
 	Status status;
 
 	if (IS_SET(MODE_KBDLOCK))
 		return;
-	meta = e->state & Mod1Mask;
-	shift = e->state & ShiftMask;
-	len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
 
-	/* 1. custom keys from config.h */
-	if((customkey = kmap(ksym, e->state)))
-		ttywrite(customkey, strlen(customkey));
-	/* 2. hardcoded (overrides X lookup) */
-	else
-		switch(ksym) {
-		case XK_Up:
-		case XK_Down:
-		case XK_Left:
-		case XK_Right:
-			/* XXX: shift up/down doesn't work */
-			sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
-			ttywrite(buf, 3);
-			break;
-		case XK_Insert:
-			if(shift)
-				selpaste();
-			break;
-		case XK_Return:
-			if(IS_SET(MODE_CRLF))
-				ttywrite("\r\n", 2);
-			else
-				ttywrite("\r", 1);
-			break;
-			/* 3. X lookup  */
-		default:
-			if(len > 0) {
-				if(meta && len == 1)
-					ttywrite("\033", 1);
-				ttywrite(buf, len);
-			}
-			break;
+	len = XmbLookupString(xw.xic, e, xstr, sizeof(xstr), &ksym, &status);
+
+	/* 1. shortcuts */
+	for(i = 0; i < LEN(shortcuts); i++) {
+		if((ksym == shortcuts[i].keysym)
+				&& (CLEANMASK(shortcuts[i].mod) == \
+					CLEANMASK(e->state))
+				&& shortcuts[i].func) {
+			shortcuts[i].func(&(shortcuts[i].arg));
 		}
+	}
+
+	/* 2. custom keys from config.h */
+	if((customkey = kmap(ksym, e->state))) {
+		len = strlen(customkey);
+		memcpy(buf, customkey, len);
+	/* 2. hardcoded (overrides X lookup) */
+	} else {
+		if(len == 0)
+			return;
+
+		if (len == 1 && e->state & Mod1Mask)
+			*cp++ = '\033';
+
+		memcpy(cp, xstr, len);
+		len = cp - buf + len;
+	}
+
+	ttywrite(buf, len);
+	if(IS_SET(MODE_ECHO))
+		techo(buf, len);
 }
 
+
 void
 cmessage(XEvent *e) {
 	/* See xembed specs
@@ -2377,30 +2782,40 @@ cmessage(XEvent *e) {
 		} else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
 			xw.state &= ~WIN_FOCUSED;
 		}
+	} else if(e->xclient.data.l[0] == xw.wmdeletewin) {
+		/* Send SIGHUP to shell */
+		kill(pid, SIGHUP);
+		exit(EXIT_SUCCESS);
 	}
 }
 
 void
-resize(XEvent *e) {
+cresize(int width, int height)
+{
 	int col, row;
 
-	if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
-		return;
+	if(width != 0)
+		xw.w = width;
+	if(height != 0)
+		xw.h = height;
 
-	xw.w = e->xconfigure.width;
-	xw.h = e->xconfigure.height;
-	col = (xw.w - 2*BORDER) / xw.cw;
-	row = (xw.h - 2*BORDER) / xw.ch;
-	if(col == term.col && row == term.row)
-		return;
+	col = (xw.w - 2*borderpx) / xw.cw;
+	row = (xw.h - 2*borderpx) / xw.ch;
 
 	tresize(col, row);
 	xresize(col, row);
-	xclearborders();
 	ttyresize();
 }
 
 void
+resize(XEvent *e) {
+	if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
+		return;
+
+	cresize(e->xconfigure.width, e->xconfigure.height);
+}
+
+void
 run(void) {
 	XEvent ev;
 	fd_set rfd;
@@ -2438,7 +2853,7 @@ run(void) {
 
 		while(XPending(xw.dpy)) {
 			XNextEvent(xw.dpy, &ev);
-			if(XFilterEvent(&ev, xw.win))
+			if(XFilterEvent(&ev, None))
 				continue;
 			if(handler[ev.type])
 				(handler[ev.type])(&ev);
@@ -2459,22 +2874,19 @@ main(int argc, char *argv[]) {
 
 	for(i = 1; i < argc; i++) {
 		switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
-		case 't':
-			if(++i < argc) opt_title = argv[i];
-			break;
 		case 'c':
-			if(++i < argc) opt_class = argv[i];
-			break;
-		case 'w':
-			if(++i < argc) opt_embed = argv[i];
-			break;
-		case 'f':
-			if(++i < argc) opt_io = argv[i];
+			if(++i < argc)
+				opt_class = argv[i];
 			break;
 		case 'e':
-			/* eat every remaining arguments */
-			if(++i < argc) opt_cmd = &argv[i];
+			/* eat all remaining arguments */
+			if(++i < argc)
+				opt_cmd = &argv[i];
 			goto run;
+		case 'f':
+			if(++i < argc)
+				opt_font = argv[i];
+			break;
 		case 'g':
 			if(++i >= argc)
 				break;
@@ -2496,19 +2908,33 @@ main(int argc, char *argv[]) {
 			if(xw.fh != 0 && xw.fw != 0)
 				xw.isfixed = True;
 			break;
+		case 'o':
+			if(++i < argc)
+				opt_io = argv[i];
+			break;
+		case 't':
+			if(++i < argc)
+				opt_title = argv[i];
+			break;
 		case 'v':
 		default:
 			die(USAGE);
+		case 'w':
+			if(++i < argc)
+				opt_embed = argv[i];
+			break;
 		}
 	}
 
- run:
+run:
 	setlocale(LC_CTYPE, "");
+	XSetLocaleModifiers("");
 	tnew(80, 24);
-	ttynew();
 	xinit();
+	ttynew();
 	selinit();
 	run();
+
 	return 0;
 }