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reset the alt screen in treset
[st.git] / st.c
diff --git a/st.c b/st.c
index 4ccef9c..0e228a7 100644 (file)
--- a/st.c
+++ b/st.c
@@ -70,11 +70,14 @@ char *argv0;
 #define LEN(a)     (sizeof(a) / sizeof(a)[0])
 #define DEFAULT(a, b)     (a) = (a) ? (a) : (b)
 #define BETWEEN(x, a, b)  ((a) <= (x) && (x) <= (b))
+#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f))
+#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
+#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
 #define LIMIT(x, a, b)    (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
 #define IS_SET(flag) ((term.mode & (flag)) != 0)
-#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
-#define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x))
+#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_nsec-t2.tv_nsec)/1E6)
+#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
 
 #define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
 #define IS_TRUECOL(x)    (1 << 24 & (x))
@@ -83,19 +86,19 @@ char *argv0;
 #define TRUEBLUE(x)      (((x) & 0xff) << 8)
 
 
-#define VT102ID "\033[?6c"
-
 enum glyph_attribute {
        ATTR_NULL      = 0,
-       ATTR_REVERSE   = 1,
-       ATTR_UNDERLINE = 2,
-       ATTR_BOLD      = 4,
-       ATTR_GFX       = 8,
-       ATTR_ITALIC    = 16,
-       ATTR_BLINK     = 32,
-       ATTR_WRAP      = 64,
-       ATTR_WIDE      = 128,
-       ATTR_WDUMMY    = 256,
+       ATTR_BOLD      = 1,
+       ATTR_FAINT     = 2,
+       ATTR_ITALIC    = 4,
+       ATTR_UNDERLINE = 8,
+       ATTR_BLINK     = 16,
+       ATTR_REVERSE   = 32,
+       ATTR_INVISIBLE = 64,
+       ATTR_STRUCK    = 128,
+       ATTR_WRAP      = 256,
+       ATTR_WIDE      = 512,
+       ATTR_WDUMMY    = 1024,
 };
 
 enum cursor_movement {
@@ -148,7 +151,7 @@ enum charset {
 enum escape_state {
        ESC_START      = 1,
        ESC_CSI        = 2,
-       ESC_STR        = 4,  /* DSC, OSC, PM, APC */
+       ESC_STR        = 4,  /* DCS, OSC, PM, APC */
        ESC_ALTCHARSET = 8,
        ESC_STR_END    = 16, /* a final string was encountered */
        ESC_TEST       = 32, /* Enter in test mode */
@@ -176,8 +179,7 @@ typedef unsigned long ulong;
 typedef unsigned short ushort;
 
 typedef XftDraw *Draw;
-typedef XftColor Colour;
-typedef Colormap Colourmap;
+typedef XftColor Color;
 
 typedef struct {
        char c[UTF_SIZ]; /* character code */
@@ -238,7 +240,7 @@ typedef struct {
 /* Purely graphic info */
 typedef struct {
        Display *dpy;
-       Colourmap cmap;
+       Colormap cmap;
        Window win;
        Drawable buf;
        Atom xembed, wmdeletewin, netwmname, netwmpid;
@@ -249,7 +251,8 @@ typedef struct {
        XSetWindowAttributes attrs;
        int scr;
        bool isfixed; /* is fixed geometry? */
-       int fx, fy, fw, fh; /* fixed geometry */
+       int l, t; /* left and top offset */
+       int gm; /* geometry mask */
        int tw, th; /* tty width and height */
        int w, h; /* window width and height */
        int ch; /* char height */
@@ -291,19 +294,19 @@ typedef struct {
        char *clip;
        Atom xtarget;
        bool alt;
-       struct timeval tclick1;
-       struct timeval tclick2;
+       struct timespec tclick1;
+       struct timespec tclick2;
 } Selection;
 
 typedef union {
        int i;
-       unsigned int ui;
+       uint ui;
        float f;
        const void *v;
 } Arg;
 
 typedef struct {
-       unsigned int mod;
+       uint mod;
        KeySym keysym;
        void (*func)(const Arg *);
        const Arg arg;
@@ -336,7 +339,7 @@ typedef struct {
 
 /* Drawing Context */
 typedef struct {
-       Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
+       Color col[MAX(LEN(colorname), 256)];
        Font font, bfont, ifont, ibfont;
        GC gc;
 } DC;
@@ -359,7 +362,7 @@ static void strparse(void);
 static void strreset(void);
 
 static int tattrset(int);
-static void tprinter(char *s, size_t len);
+static void tprinter(char *, size_t);
 static void tdumpsel(void);
 static void tdumpline(int);
 static void tdump(void);
@@ -369,17 +372,18 @@ static void tdeletechar(int);
 static void tdeleteline(int);
 static void tinsertblank(int);
 static void tinsertblankline(int);
+static int tlinelen(int);
 static void tmoveto(int, int);
-static void tmoveato(int x, int y);
+static void tmoveato(int, int);
 static void tnew(int, int);
 static void tnewline(int);
-static void tputtab(bool);
+static void tputtab(int);
 static void tputc(char *, int);
 static void treset(void);
-static int tresize(int, int);
+static void tresize(int, int);
 static void tscrollup(int, int);
 static void tscrolldown(int, int);
-static void tsetattr(int*, int);
+static void tsetattr(int *, int);
 static void tsetchar(char *, Glyph *, int, int);
 static void tsetscroll(int, int);
 static void tswapscreen(void);
@@ -388,8 +392,9 @@ static void tsetdirtattr(int);
 static void tsetmode(bool, bool, int *, int);
 static void tfulldirt(void);
 static void techo(char *, int);
+static void tcontrolcode(uchar );
+static void tdectest(char );
 static int32_t tdefcolor(int *, int *, int);
-static void tselcs(void);
 static void tdeftran(char);
 static inline bool match(uint, uint);
 static void ttynew(void);
@@ -397,6 +402,7 @@ static void ttyread(void);
 static void ttyresize(void);
 static void ttysend(char *, size_t);
 static void ttywrite(const char *, size_t);
+static void tstrsequence(uchar c);
 
 static void xdraws(char *, Glyph, int, int, int, int);
 static void xhints(void);
@@ -405,6 +411,7 @@ static void xdrawcursor(void);
 static void xinit(void);
 static void xloadcols(void);
 static int xsetcolorname(int, const char *);
+static int xgeommasktogravity(int);
 static int xloadfont(Font *, FcPattern *);
 static void xloadfonts(char *, double);
 static int xloadfontset(Font *);
@@ -412,9 +419,9 @@ static void xsettitle(char *);
 static void xresettitle(void);
 static void xsetpointermotion(int);
 static void xseturgency(int);
-static void xsetsel(char*);
+static void xsetsel(char *);
 static void xtermclear(int, int, int, int);
-static void xunloadfont(Font *f);
+static void xunloadfont(Font *);
 static void xunloadfonts(void);
 static void xresize(int, int);
 
@@ -435,12 +442,14 @@ static void selclear(XEvent *);
 static void selrequest(XEvent *);
 
 static void selinit(void);
-static void selsort(void);
+static void selnormalize(void);
 static inline bool selected(int, int);
 static char *getsel(void);
 static void selcopy(void);
 static void selscroll(int, int);
 static void selsnap(int, int *, int *, int);
+static void getbuttoninfo(XEvent *);
+static void mousereport(XEvent *);
 
 static size_t utf8decode(char *, long *, size_t);
 static long utf8decodebyte(char, size_t *);
@@ -449,10 +458,12 @@ static char utf8encodebyte(long, size_t);
 static size_t utf8len(char *);
 static size_t utf8validate(long *, size_t);
 
-static ssize_t xwrite(int, char *, size_t);
+static ssize_t xwrite(int, const char *, size_t);
 static void *xmalloc(size_t);
 static void *xrealloc(void *, size_t);
-static char *xstrdup(char *s);
+static char *xstrdup(char *);
+
+static void usage(void);
 
 static void (*handler[LASTEvent])(XEvent *) = {
        [KeyPress] = kpress,
@@ -515,7 +526,7 @@ static Fontcache frc[16];
 static int frclen = 0;
 
 ssize_t
-xwrite(int fd, char *s, size_t len) {
+xwrite(int fd, const char *s, size_t len) {
        size_t aux = len;
 
        while(len > 0) {
@@ -548,12 +559,10 @@ xrealloc(void *p, size_t len) {
 
 char *
 xstrdup(char *s) {
-       char *p = strdup(s);
-
-       if (!p)
+       if((s = strdup(s)) == NULL)
                die("Out of memory\n");
 
-       return p;
+       return s;
 }
 
 size_t
@@ -649,9 +658,20 @@ y2row(int y) {
        return LIMIT(y, 0, term.row-1);
 }
 
+static int tlinelen(int y) {
+       int i = term.col;
+
+       while (i > 0 && term.line[y][i - 1].c[0] == ' ')
+               --i;
+
+       return i;
+}
+
 static void
-selsort(void) {
-       if(sel.ob.y == sel.oe.y) {
+selnormalize(void) {
+       int i;
+
+       if(sel.ob.y == sel.oe.y || sel.type == SEL_RECTANGULAR) {
                sel.nb.x = MIN(sel.ob.x, sel.oe.x);
                sel.ne.x = MAX(sel.ob.x, sel.oe.x);
        } else {
@@ -660,27 +680,32 @@ selsort(void) {
        }
        sel.nb.y = MIN(sel.ob.y, sel.oe.y);
        sel.ne.y = MAX(sel.ob.y, sel.oe.y);
+
+       /* expand selection over line breaks */
+       if (sel.type == SEL_RECTANGULAR)
+               return;
+       i = tlinelen(sel.nb.y);
+       if (i < sel.nb.x)
+               sel.nb.x = i;
+       if (tlinelen(sel.ne.y) <= sel.ne.x)
+               sel.ne.x = term.col - 1;
 }
 
 static inline bool
 selected(int x, int y) {
-       if(sel.ne.y == y && sel.nb.y == y)
-               return BETWEEN(x, sel.nb.x, sel.ne.x);
+       if(sel.type == SEL_RECTANGULAR)
+               return BETWEEN(y, sel.nb.y, sel.ne.y)
+                   && BETWEEN(x, sel.nb.x, sel.ne.x);
 
-       if(sel.type == SEL_RECTANGULAR) {
-               return ((sel.nb.y <= y && y <= sel.ne.y)
-                       && (sel.nb.x <= x && x <= sel.ne.x));
-       }
-
-       return ((sel.nb.y < y && y < sel.ne.y)
-               || (y == sel.ne.y && x <= sel.ne.x))
-               || (y == sel.nb.y && x >= sel.nb.x
-                       && (x <= sel.ne.x || sel.nb.y != sel.ne.y));
+       return BETWEEN(y, sel.nb.y, sel.ne.y)
+           && (y != sel.nb.y || x >= sel.nb.x)
+           && (y != sel.ne.y || x <= sel.ne.x);
 }
 
 void
 selsnap(int mode, int *x, int *y, int direction) {
-       int i;
+       int newx, newy, xt, yt;
+       Glyph *gp;
 
        switch(mode) {
        case SNAP_WORD:
@@ -689,36 +714,31 @@ selsnap(int mode, int *x, int *y, int direction) {
                 * beginning of a line.
                 */
                for(;;) {
-                       if(direction < 0 && *x <= 0) {
-                               if(*y > 0 && term.line[*y - 1][term.col-1].mode
-                                               & ATTR_WRAP) {
-                                       *y -= 1;
-                                       *x = term.col-1;
-                               } else {
+                       newx = *x + direction;
+                       newy = *y;
+                       if(!BETWEEN(newx, 0, term.col - 1)) {
+                               newy += direction;
+                               newx = (newx + term.col) % term.col;
+                               if (!BETWEEN(newy, 0, term.row - 1))
                                        break;
-                               }
-                       }
-                       if(direction > 0 && *x >= term.col-1) {
-                               if(*y < term.row-1 && term.line[*y][*x].mode
-                                               & ATTR_WRAP) {
-                                       *y += 1;
-                                       *x = 0;
-                               } else {
+
+                               if(direction > 0)
+                                       yt = *y, xt = *x;
+                               else
+                                       yt = newy, xt = newx;
+                               if(!(term.line[yt][xt].mode & ATTR_WRAP))
                                        break;
-                               }
                        }
 
-                       if(term.line[*y][*x+direction].mode & ATTR_WDUMMY) {
-                               *x += direction;
-                               continue;
-                       }
+                       if (newx >= tlinelen(newy))
+                               break;
 
-                       if(strchr(worddelimiters,
-                                       term.line[*y][*x+direction].c[0])) {
+                       gp = &term.line[newy][newx];
+                       if (!(gp->mode & ATTR_WDUMMY) && strchr(worddelimiters, gp->c[0]))
                                break;
-                       }
 
-                       *x += direction;
+                       *x = newx;
+                       *y = newy;
                }
                break;
        case SNAP_LINE:
@@ -744,25 +764,13 @@ selsnap(int mode, int *x, int *y, int direction) {
                        }
                }
                break;
-       default:
-               /*
-                * Select the whole line when the end of line is reached.
-                */
-               if(direction > 0) {
-                       i = term.col;
-                       while(--i > 0 && term.line[*y][i].c[0] == ' ')
-                               /* nothing */;
-                       if(i > 0 && i < *x)
-                               *x = term.col - 1;
-               }
-               break;
        }
 }
 
 void
 getbuttoninfo(XEvent *e) {
        int type;
-       uint state = e->xbutton.state &~Button1Mask;
+       uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
 
        sel.alt = IS_SET(MODE_ALTSCREEN);
 
@@ -777,7 +785,7 @@ getbuttoninfo(XEvent *e) {
                selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
                selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
        }
-       selsort();
+       selnormalize();
 
        sel.type = SEL_REGULAR;
        for(type = 1; type < LEN(selmasks); ++type) {
@@ -826,6 +834,8 @@ mousereport(XEvent *e) {
                        /* MODE_MOUSEX10: no button release reporting */
                        if(IS_SET(MODE_MOUSEX10))
                                return;
+                       if (button == 64 || button == 65)
+                               return;
                }
        }
 
@@ -852,10 +862,10 @@ mousereport(XEvent *e) {
 
 void
 bpress(XEvent *e) {
-       struct timeval now;
+       struct timespec now;
        Mousekey *mk;
 
-       if(IS_SET(MODE_MOUSE)) {
+       if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
                mousereport(e);
                return;
        }
@@ -869,7 +879,7 @@ bpress(XEvent *e) {
        }
 
        if(e->xbutton.button == Button1) {
-               gettimeofday(&now, NULL);
+               clock_gettime(CLOCK_MONOTONIC, &now);
 
                /* Clear previous selection, logically and visually. */
                selclear(NULL);
@@ -891,7 +901,7 @@ bpress(XEvent *e) {
                }
                selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
                selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
-               selsort();
+               selnormalize();
 
                /*
                 * Draw selection, unless it's regular and we don't want to
@@ -909,63 +919,50 @@ bpress(XEvent *e) {
 char *
 getsel(void) {
        char *str, *ptr;
-       int x, y, bufsize, size, i, ex;
+       int y, bufsize, size, lastx, linelen;
        Glyph *gp, *last;
 
-       if(sel.ob.x == -1) {
-               str = NULL;
-       } else {
-               bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
-               ptr = str = xmalloc(bufsize);
-
-               /* append every set & selected glyph to the selection */
-               for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
-                       gp = &term.line[y][0];
-                       last = &gp[term.col-1];
+       if(sel.ob.x == -1)
+               return NULL;
 
-                       while(last >= gp && !(selected(last - gp, y) &&
-                                             strcmp(last->c, " ") != 0)) {
-                               --last;
-                       }
+       bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
+       ptr = str = xmalloc(bufsize);
 
-                       for(x = 0; gp <= last; x++, ++gp) {
-                               if(!selected(x, y) || (gp->mode & ATTR_WDUMMY))
-                                       continue;
+       /* append every set & selected glyph to the selection */
+       for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
+               linelen = tlinelen(y);
 
-                               size = utf8len(gp->c);
-                               memcpy(ptr, gp->c, size);
-                               ptr += size;
-                       }
+               if(sel.type == SEL_RECTANGULAR) {
+                       gp = &term.line[y][sel.nb.x];
+                       lastx = sel.ne.x;
+               } else {
+                       gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
+                       lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
+               }
+               last = &term.line[y][MIN(lastx, linelen-1)];
 
-                       /*
-                        * Copy and pasting of line endings is inconsistent
-                        * in the inconsistent terminal and GUI world.
-                        * The best solution seems like to produce '\n' when
-                        * something is copied from st and convert '\n' to
-                        * '\r', when something to be pasted is received by
-                        * st.
-                        * FIXME: Fix the computer world.
-                        */
-                       if(y < sel.ne.y && x > 0 && !((gp-1)->mode & ATTR_WRAP))
-                               *ptr++ = '\n';
+               for( ; gp <= last; ++gp) {
+                       if(gp->mode & ATTR_WDUMMY)
+                               continue;
 
-                       /*
-                        * If the last selected line expands in the selection
-                        * after the visible text '\n' is appended.
-                        */
-                       if(y == sel.ne.y) {
-                               i = term.col;
-                               while(--i > 0 && term.line[y][i].c[0] == ' ')
-                                       /* nothing */;
-                               ex = sel.ne.x;
-                               if(sel.nb.y == sel.ne.y && sel.ne.x < sel.nb.x)
-                                       ex = sel.nb.x;
-                               if(i < ex)
-                                       *ptr++ = '\n';
-                       }
+                       size = utf8len(gp->c);
+                       memcpy(ptr, gp->c, size);
+                       ptr += size;
                }
-               *ptr = 0;
+
+               /*
+                * Copy and pasting of line endings is inconsistent
+                * in the inconsistent terminal and GUI world.
+                * The best solution seems like to produce '\n' when
+                * something is copied from st and convert '\n' to
+                * '\r', when something to be pasted is received by
+                * st.
+                * FIXME: Fix the computer world.
+                */
+               if(sel.ne.y > y || lastx >= linelen)
+                       *ptr++ = '\n';
        }
+       *ptr = 0;
        return str;
 }
 
@@ -991,7 +988,7 @@ selnotify(XEvent *e) {
                }
 
                /*
-                * As seen in selcopy:
+                * As seen in getsel:
                 * Line endings are inconsistent in the terminal and GUI world
                 * copy and pasting. When receiving some selection data,
                 * replace all '\n' with '\r'.
@@ -1088,7 +1085,7 @@ xsetsel(char *str) {
 
 void
 brelease(XEvent *e) {
-       if(IS_SET(MODE_MOUSE)) {
+       if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
                mousereport(e);
                return;
        }
@@ -1111,7 +1108,7 @@ void
 bmotion(XEvent *e) {
        int oldey, oldex, oldsby, oldsey;
 
-       if(IS_SET(MODE_MOUSE)) {
+       if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
                mousereport(e);
                return;
        }
@@ -1177,16 +1174,15 @@ execsh(void) {
 
 void
 sigchld(int a) {
-       int stat = 0;
+       int stat, ret;
 
        if(waitpid(pid, &stat, 0) < 0)
                die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
 
-       if(WIFEXITED(stat)) {
-               exit(WEXITSTATUS(stat));
-       } else {
-               exit(EXIT_FAILURE);
-       }
+       ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
+       if (ret != EXIT_SUCCESS)
+               die("child finished with error '%d'\n", stat);
+       exit(EXIT_SUCCESS);
 }
 
 void
@@ -1227,19 +1223,11 @@ ttynew(void) {
                                        opt_io, strerror(errno));
                        }
                }
+               break;
        }
 }
 
 void
-dump(char c) {
-       static int col;
-
-       fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
-       if(++col % 10 == 0)
-               fprintf(stderr, "\n");
-}
-
-void
 ttyread(void) {
        static char buf[BUFSIZ];
        static int buflen = 0;
@@ -1269,7 +1257,7 @@ ttyread(void) {
 
 void
 ttywrite(const char *s, size_t n) {
-       if(write(cmdfd, s, n) == -1)
+       if(xwrite(cmdfd, s, n) == -1)
                die("write error on tty: %s\n", strerror(errno));
 }
 
@@ -1368,9 +1356,12 @@ treset(void) {
        memset(term.trantbl, sizeof(term.trantbl), CS_USA);
        term.charset = 0;
 
-       tclearregion(0, 0, term.col-1, term.row-1);
-       tmoveto(0, 0);
-       tcursor(CURSOR_SAVE);
+       for(i = 0; i < 2; i++) {
+               tmoveto(0, 0);
+               tcursor(CURSOR_SAVE);
+               tclearregion(0, 0, term.col-1, term.row-1);
+               tswapscreen();
+       }
 }
 
 void
@@ -1399,15 +1390,13 @@ tscrolldown(int orig, int n) {
 
        LIMIT(n, 0, term.bot-orig+1);
 
+       tsetdirt(orig, term.bot-n);
        tclearregion(0, term.bot-n+1, term.col-1, term.bot);
 
        for(i = term.bot; i >= orig+n; i--) {
                temp = term.line[i];
                term.line[i] = term.line[i-n];
                term.line[i-n] = temp;
-
-               term.dirty[i] = 1;
-               term.dirty[i-n] = 1;
        }
 
        selscroll(orig, n);
@@ -1417,17 +1406,16 @@ void
 tscrollup(int orig, int n) {
        int i;
        Line temp;
+
        LIMIT(n, 0, term.bot-orig+1);
 
        tclearregion(0, orig, term.col-1, orig+n-1);
+       tsetdirt(orig+n, term.bot);
 
        for(i = orig; i <= term.bot-n; i++) {
-                temp = term.line[i];
-                term.line[i] = term.line[i+n];
-                term.line[i+n] = temp;
-
-                term.dirty[i] = 1;
-                term.dirty[i+n] = 1;
+               temp = term.line[i];
+               term.line[i] = term.line[i+n];
+               term.line[i+n] = temp;
        }
 
        selscroll(orig, -n);
@@ -1458,7 +1446,7 @@ selscroll(int orig, int n) {
                                sel.oe.x = term.col;
                        }
                }
-               selsort();
+               selnormalize();
        }
 }
 
@@ -1542,9 +1530,8 @@ tsetchar(char *c, Glyph *attr, int x, int y) {
        /*
         * The table is proudly stolen from rxvt.
         */
-       if(attr->mode & ATTR_GFX) {
-               if(c[0] >= 0x41 && c[0] <= 0x7e
-                               && vt100_0[c[0] - 0x41]) {
+       if(term.trantbl[term.charset] == CS_GRAPHIC0) {
+               if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
                        c = vt100_0[c[0] - 0x41];
                }
        }
@@ -1567,6 +1554,7 @@ tsetchar(char *c, Glyph *attr, int x, int y) {
 void
 tclearregion(int x1, int y1, int x2, int y2) {
        int x, y, temp;
+       Glyph *gp;
 
        if(x1 > x2)
                temp = x1, x1 = x2, x2 = temp;
@@ -1581,64 +1569,59 @@ tclearregion(int x1, int y1, int x2, int y2) {
        for(y = y1; y <= y2; y++) {
                term.dirty[y] = 1;
                for(x = x1; x <= x2; x++) {
+                       gp = &term.line[y][x];
                        if(selected(x, y))
                                selclear(NULL);
-                       term.line[y][x] = term.c.attr;
-                       memcpy(term.line[y][x].c, " ", 2);
+                       gp->fg = term.c.attr.fg;
+                       gp->bg = term.c.attr.bg;
+                       gp->mode = 0;
+                       memcpy(gp->c, " ", 2);
                }
        }
 }
 
 void
 tdeletechar(int n) {
-       int src = term.c.x + n;
-       int dst = term.c.x;
-       int size = term.col - src;
+       int dst, src, size;
+       Glyph *line;
 
-       term.dirty[term.c.y] = 1;
+       LIMIT(n, 0, term.col - term.c.x);
 
-       if(src >= term.col) {
-               tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
-               return;
-       }
+       dst = term.c.x;
+       src = term.c.x + n;
+       size = term.col - src;
+       line = term.line[term.c.y];
 
-       memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
-                       size * sizeof(Glyph));
+       memmove(&line[dst], &line[src], size * sizeof(Glyph));
        tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
 }
 
 void
 tinsertblank(int n) {
-       int src = term.c.x;
-       int dst = src + n;
-       int size = term.col - dst;
+       int dst, src, size;
+       Glyph *line;
 
-       term.dirty[term.c.y] = 1;
+       LIMIT(n, 0, term.col - term.c.x);
 
-       if(dst >= term.col) {
-               tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
-               return;
-       }
+       dst = term.c.x + n;
+       src = term.c.x;
+       size = term.col - dst;
+       line = term.line[term.c.y];
 
-       memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
-                       size * sizeof(Glyph));
+       memmove(&line[dst], &line[src], size * sizeof(Glyph));
        tclearregion(src, term.c.y, dst - 1, term.c.y);
 }
 
 void
 tinsertblankline(int n) {
-       if(term.c.y < term.top || term.c.y > term.bot)
-               return;
-
-       tscrolldown(term.c.y, n);
+       if(BETWEEN(term.c.y, term.top, term.bot))
+               tscrolldown(term.c.y, n);
 }
 
 void
 tdeleteline(int n) {
-       if(term.c.y < term.top || term.c.y > term.bot)
-               return;
-
-       tscrollup(term.c.y, n);
+       if(BETWEEN(term.c.y, term.top, term.bot))
+               tscrollup(term.c.y, n);
 }
 
 int32_t
@@ -1647,7 +1630,7 @@ tdefcolor(int *attr, int *npar, int l) {
        uint r, g, b;
 
        switch (attr[*npar + 1]) {
-       case 2: /* direct colour in RGB space */
+       case 2: /* direct color in RGB space */
                if (*npar + 4 >= l) {
                        fprintf(stderr,
                                "erresc(38): Incorrect number of parameters (%d)\n",
@@ -1664,7 +1647,7 @@ tdefcolor(int *attr, int *npar, int l) {
                else
                        idx = TRUECOLOR(r, g, b);
                break;
-       case 5: /* indexed colour */
+       case 5: /* indexed color */
                if (*npar + 2 >= l) {
                        fprintf(stderr,
                                "erresc(38): Incorrect number of parameters (%d)\n",
@@ -1679,11 +1662,12 @@ tdefcolor(int *attr, int *npar, int l) {
                break;
        case 0: /* implemented defined (only foreground) */
        case 1: /* transparent */
-       case 3: /* direct colour in CMY space */
-       case 4: /* direct colour in CMYK space */
+       case 3: /* direct color in CMY space */
+       case 4: /* direct color in CMYK space */
        default:
                fprintf(stderr,
                        "erresc(38): gfx attr %d unknown\n", attr[*npar]);
+               break;
        }
 
        return idx;
@@ -1697,15 +1681,24 @@ tsetattr(int *attr, int l) {
        for(i = 0; i < l; i++) {
                switch(attr[i]) {
                case 0:
-                       term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE \
-                                       | ATTR_BOLD | ATTR_ITALIC \
-                                       | ATTR_BLINK);
+                       term.c.attr.mode &= ~(
+                               ATTR_BOLD       |
+                               ATTR_FAINT      |
+                               ATTR_ITALIC     |
+                               ATTR_UNDERLINE  |
+                               ATTR_BLINK      |
+                               ATTR_REVERSE    |
+                               ATTR_INVISIBLE  |
+                               ATTR_STRUCK     );
                        term.c.attr.fg = defaultfg;
                        term.c.attr.bg = defaultbg;
                        break;
                case 1:
                        term.c.attr.mode |= ATTR_BOLD;
                        break;
+               case 2:
+                       term.c.attr.mode |= ATTR_FAINT;
+                       break;
                case 3:
                        term.c.attr.mode |= ATTR_ITALIC;
                        break;
@@ -1713,15 +1706,21 @@ tsetattr(int *attr, int l) {
                        term.c.attr.mode |= ATTR_UNDERLINE;
                        break;
                case 5: /* slow blink */
+                       /* FALLTHROUGH */
                case 6: /* rapid blink */
                        term.c.attr.mode |= ATTR_BLINK;
                        break;
                case 7:
                        term.c.attr.mode |= ATTR_REVERSE;
                        break;
-               case 21:
+               case 8:
+                       term.c.attr.mode |= ATTR_INVISIBLE;
+                       break;
+               case 9:
+                       term.c.attr.mode |= ATTR_STRUCK;
+                       break;
                case 22:
-                       term.c.attr.mode &= ~ATTR_BOLD;
+                       term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT);
                        break;
                case 23:
                        term.c.attr.mode &= ~ATTR_ITALIC;
@@ -1730,12 +1729,17 @@ tsetattr(int *attr, int l) {
                        term.c.attr.mode &= ~ATTR_UNDERLINE;
                        break;
                case 25:
-               case 26:
                        term.c.attr.mode &= ~ATTR_BLINK;
                        break;
                case 27:
                        term.c.attr.mode &= ~ATTR_REVERSE;
                        break;
+               case 28:
+                       term.c.attr.mode &= ~ATTR_INVISIBLE;
+                       break;
+               case 29:
+                       term.c.attr.mode &= ~ATTR_STRUCK;
+                       break;
                case 38:
                        if ((idx = tdefcolor(attr, &i, l)) >= 0)
                                term.c.attr.fg = idx;
@@ -1784,8 +1788,6 @@ tsetscroll(int t, int b) {
        term.bot = b;
 }
 
-#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
-
 void
 tsetmode(bool priv, bool set, int *args, int narg) {
        int *lim, mode;
@@ -1794,7 +1796,6 @@ tsetmode(bool priv, bool set, int *args, int narg) {
        for(lim = args + narg; args < lim; ++args) {
                if(priv) {
                        switch(*args) {
-                               break;
                        case 1: /* DECCKM -- Cursor key */
                                MODBIT(term.mode, set, MODE_APPCURSOR);
                                break;
@@ -1857,7 +1858,7 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                                if (!allowaltscreen)
                                        break;
                                tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
-                               /* FALLTHRU */
+                               /* FALLTHROUGH */
                        case 47: /* swap screen */
                        case 1047:
                                if (!allowaltscreen)
@@ -1871,7 +1872,7 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                                        tswapscreen();
                                if(*args != 1049)
                                        break;
-                               /* FALLTRU */
+                               /* FALLTHROUGH */
                        case 1048:
                                tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
                                break;
@@ -1965,7 +1966,7 @@ csihandle(void) {
                break;
        case 'c': /* DA -- Device Attributes */
                if(csiescseq.arg[0] == 0)
-                       ttywrite(VT102ID, sizeof(VT102ID) - 1);
+                       ttywrite(vtiden, sizeof(vtiden) - 1);
                break;
        case 'C': /* CUF -- Cursor <n> Forward */
        case 'a': /* HPR -- Cursor <n> Forward */
@@ -2009,8 +2010,7 @@ csihandle(void) {
                break;
        case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
                DEFAULT(csiescseq.arg[0], 1);
-               while(csiescseq.arg[0]--)
-                       tputtab(1);
+               tputtab(csiescseq.arg[0]);
                break;
        case 'J': /* ED -- Clear screen */
                selclear(NULL);
@@ -2078,8 +2078,7 @@ csihandle(void) {
                break;
        case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
                DEFAULT(csiescseq.arg[0], 1);
-               while(csiescseq.arg[0]--)
-                       tputtab(0);
+               tputtab(-csiescseq.arg[0]);
                break;
        case 'd': /* VPA -- Move to <row> */
                DEFAULT(csiescseq.arg[0], 1);
@@ -2096,8 +2095,8 @@ csihandle(void) {
                        len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
                                        term.c.y+1, term.c.x+1);
                        ttywrite(buf, len);
-                       break;
                }
+               break;
        case 'r': /* DECSTBM -- Set Scrolling Region */
                if(csiescseq.priv) {
                        goto unknown;
@@ -2150,6 +2149,7 @@ strhandle(void) {
        char *p = NULL;
        int j, narg, par;
 
+       term.esc &= ~(ESC_STR_END|ESC_STR);
        strparse();
        narg = strescseq.narg;
        par = atoi(strescseq.args[0]);
@@ -2167,10 +2167,10 @@ strhandle(void) {
                        if(narg < 3)
                                break;
                        p = strescseq.args[2];
-                       /* fall through */
+                       /* FALLTHROUGH */
                case 104: /* color reset, here p = NULL */
                        j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
-                       if (!xsetcolorname(j, p)) {
+                       if(xsetcolorname(j, p)) {
                                fprintf(stderr, "erresc: invalid color %s\n", p);
                        } else {
                                /*
@@ -2185,7 +2185,7 @@ strhandle(void) {
        case 'k': /* old title set compatibility */
                xsettitle(strescseq.args[0]);
                return;
-       case 'P': /* DSC -- Device Control String */
+       case 'P': /* DCS -- Device Control String */
        case '_': /* APC -- Application Program Command */
        case '^': /* PM -- Privacy Message */
                return;
@@ -2261,8 +2261,7 @@ printsel(const Arg *arg) {
 }
 
 void
-tdumpsel(void)
-{
+tdumpsel(void) {
        char *ptr;
 
        if((ptr = getsel())) {
@@ -2276,12 +2275,10 @@ tdumpline(int n) {
        Glyph *bp, *end;
 
        bp = &term.line[n][0];
-       end = &bp[term.col-1];
-       while(end > bp && !strcmp(" ", end->c))
-               --end;
-       if(bp != end || strcmp(bp->c, " ")) {
+       end = &bp[MIN(tlinelen(n), term.col) - 1];
+       if(bp != end || bp->c[0] != ' ') {
                for( ;bp <= end; ++bp)
-                       tprinter(bp->c, strlen(bp->c));
+                       tprinter(bp->c, utf8len(bp->c));
        }
        tprinter("\n", 1);
 }
@@ -2295,19 +2292,17 @@ tdump(void) {
 }
 
 void
-tputtab(bool forward) {
+tputtab(int n) {
        uint x = term.c.x;
 
-       if(forward) {
-               if(x == term.col)
-                       return;
-               for(++x; x < term.col && !term.tabs[x]; ++x)
-                       /* nothing */ ;
-       } else {
-               if(x == 0)
-                       return;
-               for(--x; x > 0 && !term.tabs[x]; --x)
-                       /* nothing */ ;
+       if(n > 0) {
+               while(x < term.col && n--)
+                       for(++x; x < term.col && !term.tabs[x]; ++x)
+                               /* nothing */ ;
+       } else if(n < 0) {
+               while(x > 0 && n++)
+                       for(--x; x > 0 && !term.tabs[x]; --x)
+                               /* nothing */ ;
        }
        tmoveto(x, term.c.y);
 }
@@ -2317,9 +2312,13 @@ techo(char *buf, int len) {
        for(; len > 0; buf++, len--) {
                char c = *buf;
 
-               if(c < '\x20') { /* control code */
-                       if(c != '\n' && c != '\r' && c != '\t') {
-                               c |= '\x40';
+               if(ISCONTROL((uchar) c)) { /* control code */
+                       if(c & 0x80) {
+                               c &= 0x7f;
+                               tputc("^", 1);
+                               tputc("[", 1);
+                       } else if(c != '\n' && c != '\r' && c != '\t') {
+                               c ^= 0x40;
                                tputc("^", 1);
                        }
                        tputc(&c, 1);
@@ -2333,82 +2332,193 @@ techo(char *buf, int len) {
 
 void
 tdeftran(char ascii) {
-       char c, (*bp)[2];
-       static char tbl[][2] = {
-               {'0', CS_GRAPHIC0}, {'1', CS_GRAPHIC1}, {'A', CS_UK},
-               {'B', CS_USA},      {'<', CS_MULTI},    {'K', CS_GER},
-               {'5', CS_FIN},      {'C', CS_FIN},
-               {0, 0}
-       };
+       static char cs[] = "0B";
+       static int vcs[] = {CS_GRAPHIC0, CS_USA};
+       char *p;
 
-       for (bp = &tbl[0]; (c = (*bp)[0]) && c != ascii; ++bp)
-               /* nothing */;
-
-       if (c == 0)
+       if((p = strchr(cs, ascii)) == NULL) {
                fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
-       else
-               term.trantbl[term.icharset] = (*bp)[1];
+       } else {
+               term.trantbl[term.icharset] = vcs[p - cs];
+       }
 }
 
 void
-tselcs(void) {
-       if (term.trantbl[term.charset] == CS_GRAPHIC0)
-               term.c.attr.mode |= ATTR_GFX;
-       else
-               term.c.attr.mode &= ~ATTR_GFX;
+tstrsequence(uchar c) {
+       if (c & 0x80) {
+               switch (c) {
+               case 0x90:   /* DCS -- Device Control String */
+                       c = 'P';
+                       break;
+               case 0x9f:   /* APC -- Application Program Command */
+                       c = '_';
+                       break;
+               case 0x9e:   /* PM -- Privacy Message */
+                       c = '^';
+                       break;
+               case 0x9d:   /* OSC -- Operating System Command */
+                       c = ']';
+                       break;
+               }
+       }
+       strreset();
+       strescseq.type = c;
+       term.esc |= ESC_STR;
+       return;
+}
+
+void
+tcontrolcode(uchar ascii) {
+       static char question[UTF_SIZ] = "?";
+
+       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(term.esc & ESC_STR_END) {
+                       /* backwards compatibility to xterm */
+                       strhandle();
+               } else {
+                       if(!(xw.state & WIN_FOCUSED))
+                               xseturgency(1);
+                       if (bellvolume)
+                               XBell(xw.dpy, bellvolume);
+               }
+               break;
+       case '\033': /* ESC */
+               csireset();
+               term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
+               term.esc |= ESC_START;
+               return;
+       case '\016': /* SO */
+               term.charset = 0;
+               return;
+       case '\017': /* SI */
+               term.charset = 1;
+               return;
+       case '\032': /* SUB */
+               tsetchar(question, &term.c.attr, term.c.x, term.c.y);
+       case '\030': /* CAN */
+               csireset();
+               break;
+       case '\005': /* ENQ (IGNORED) */
+       case '\000': /* NUL (IGNORED) */
+       case '\021': /* XON (IGNORED) */
+       case '\023': /* XOFF (IGNORED) */
+       case 0177:   /* DEL (IGNORED) */
+               return;
+       case 0x84:   /* TODO: IND */
+               break;
+       case 0x85:   /* NEL -- Next line */
+               tnewline(1); /* always go to first col */
+               break;
+       case 0x88:   /* HTS -- Horizontal tab stop */
+               term.tabs[term.c.x] = 1;
+               break;
+       case 0x8d:   /* TODO: RI */
+       case 0x8e:   /* TODO: SS2 */
+       case 0x8f:   /* TODO: SS3 */
+       case 0x98:   /* TODO: SOS */
+               break;
+       case 0x9a:   /* DECID -- Identify Terminal */
+               ttywrite(vtiden, sizeof(vtiden) - 1);
+               break;
+       case 0x9b:   /* TODO: CSI */
+       case 0x9c:   /* TODO: ST */
+               break;
+       case 0x90:   /* DCS -- Device Control String */
+       case 0x9f:   /* APC -- Application Program Command */
+       case 0x9e:   /* PM -- Privacy Message */
+       case 0x9d:   /* OSC -- Operating System Command */
+               tstrsequence(ascii);
+               return;
+       }
+       /* only CAN, SUB, \a and C1 chars interrupt a sequence */
+       term.esc &= ~(ESC_STR_END|ESC_STR);
+       return;
+}
+
+void
+tdectest(char c) {
+       static char E[UTF_SIZ] = "E";
+       int x, y;
+
+       if(c == '8') { /* DEC screen alignment test. */
+               for(x = 0; x < term.col; ++x) {
+                       for(y = 0; y < term.row; ++y)
+                               tsetchar(E, &term.c.attr, x, y);
+               }
+       }
 }
 
 void
 tputc(char *c, int len) {
-       uchar ascii = *c;
-       bool control = ascii < '\x20' || ascii == 0177;
+       uchar ascii;
+       bool control;
        long unicodep;
        int width;
+       Glyph *gp;
 
        if(len == 1) {
                width = 1;
+               unicodep = ascii = *c;
        } else {
                utf8decode(c, &unicodep, UTF_SIZ);
                width = wcwidth(unicodep);
+               control = ISCONTROLC1(unicodep);
+               ascii = unicodep;
        }
 
        if(IS_SET(MODE_PRINT))
                tprinter(c, len);
+       control = ISCONTROL(unicodep);
 
        /*
-        * STR sequences must be checked before anything else
-        * because it can use some control codes as part of the sequence.
+        * STR sequence must be checked before anything else
+        * because it uses all following characters until it
+        * receives a ESC, a SUB, a ST or any other C1 control
+        * character.
         */
        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:
-                       if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
-                               memmove(&strescseq.buf[strescseq.len], c, len);
-                               strescseq.len += len;
-                       } else {
-                       /*
-                        * Here is a bug in terminals. If the user never sends
-                        * some code to stop the str or esc command, then st
-                        * will stop responding. But this is better than
-                        * silently failing with unknown characters. At least
-                        * then users will report back.
-                        *
-                        * In the case users ever get fixed, here is the code:
-                        */
-                       /*
-                        * term.esc = 0;
-                        * strhandle();
-                        */
-                       }
+               if(width == 1 &&
+                  (ascii == '\a' || ascii == 030 ||
+                   ascii == 032  || ascii == 033 ||
+                   ISCONTROLC1(unicodep))) {
+                       term.esc &= ~(ESC_START|ESC_STR);
+                       term.esc |= ESC_STR_END;
+               } else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
+                       memmove(&strescseq.buf[strescseq.len], c, len);
+                       strescseq.len += len;
+                       return;
+               } else {
+               /*
+                * Here is a bug in terminals. If the user never sends
+                * some code to stop the str or esc command, then st
+                * will stop responding. But this is better than
+                * silently failing with unknown characters. At least
+                * then users will report back.
+                *
+                * In the case users ever get fixed, here is the code:
+                */
+               /*
+                * term.esc = 0;
+                * strhandle();
+                */
+                       return;
                }
-               return;
        }
 
        /*
@@ -2417,51 +2527,11 @@ tputc(char *c, int len) {
         * 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);
-                       if (bellvolume)
-                               XBell(xw.dpy, bellvolume);
-                       return;
-               case '\033': /* ESC */
-                       csireset();
-                       term.esc = ESC_START;
-                       return;
-               case '\016': /* SO */
-                       term.charset = 0;
-                       tselcs();
-                       return;
-               case '\017': /* SI */
-                       term.charset = 1;
-                       tselcs();
-                       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;
-               }
+               tcontrolcode(ascii);
+               /*
+                * control codes are not shown ever
+                */
+               return;
        } else if(term.esc & ESC_START) {
                if(term.esc & ESC_CSI) {
                        csiescseq.buf[csiescseq.len++] = ascii;
@@ -2472,64 +2542,45 @@ tputc(char *c, int len) {
                                csiparse();
                                csihandle();
                        }
-               } else if(term.esc & ESC_STR_END) {
-                       term.esc = 0;
-                       if(ascii == '\\')
-                               strhandle();
+                       return;
                } else if(term.esc & ESC_ALTCHARSET) {
                        tdeftran(ascii);
-                       tselcs();
-                       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;
+                       tdectest(ascii);
                } else {
                        switch(ascii) {
                        case '[':
                                term.esc |= ESC_CSI;
-                               break;
+                               return;
                        case '#':
                                term.esc |= ESC_TEST;
-                               break;
+                               return;
                        case 'P': /* DCS -- Device Control String */
                        case '_': /* APC -- Application Program Command */
                        case '^': /* PM -- Privacy Message */
                        case ']': /* OSC -- Operating System Command */
                        case 'k': /* old title set compatibility */
-                               strreset();
-                               strescseq.type = ascii;
-                               term.esc |= ESC_STR;
-                               break;
+                               tstrsequence(ascii);
+                               return;
                        case '(': /* set primary charset G0 */
                        case ')': /* set secondary charset G1 */
                        case '*': /* set tertiary charset G2 */
                        case '+': /* set quaternary charset G3 */
                                term.icharset = ascii - '(';
                                term.esc |= ESC_ALTCHARSET;
-                               break;
+                               return;
                        case 'D': /* IND -- Linefeed */
                                if(term.c.y == term.bot) {
                                        tscrollup(term.top, 1);
                                } else {
                                        tmoveto(term.c.x, term.c.y+1);
                                }
-                               term.esc = 0;
                                break;
                        case 'E': /* NEL -- Next line */
                                tnewline(1); /* always go to first col */
-                               term.esc = 0;
                                break;
                        case 'H': /* HTS -- Horizontal tab stop */
                                term.tabs[term.c.x] = 1;
-                               term.esc = 0;
                                break;
                        case 'M': /* RI -- Reverse index */
                                if(term.c.y == term.top) {
@@ -2537,66 +2588,55 @@ tputc(char *c, int len) {
                                } 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;
+                               ttywrite(vtiden, sizeof(vtiden) - 1);
                                break;
                        case 'c': /* RIS -- Reset to inital state */
                                treset();
-                               term.esc = 0;
                                xresettitle();
                                xloadcols();
                                break;
                        case '=': /* DECPAM -- Application keypad */
                                term.mode |= MODE_APPKEYPAD;
-                               term.esc = 0;
                                break;
                        case '>': /* DECPNM -- Normal keypad */
                                term.mode &= ~MODE_APPKEYPAD;
-                               term.esc = 0;
                                break;
                        case '7': /* DECSC -- Save Cursor */
                                tcursor(CURSOR_SAVE);
-                               term.esc = 0;
                                break;
                        case '8': /* DECRC -- Restore Cursor */
                                tcursor(CURSOR_LOAD);
-                               term.esc = 0;
                                break;
-                       case '\\': /* ST -- Stop */
-                               term.esc = 0;
+                       case '\\': /* ST -- String Terminator */
+                               if(term.esc & ESC_STR_END)
+                                       strhandle();
                                break;
                        default:
                                fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
                                        (uchar) ascii, isprint(ascii)? ascii:'.');
-                               term.esc = 0;
+                               break;
                        }
                }
+               term.esc = 0;
                /*
                 * All characters which form 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.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
                selclear(NULL);
+
+       gp = &term.line[term.c.y][term.c.x];
        if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
-               term.line[term.c.y][term.c.x].mode |= ATTR_WRAP;
+               gp->mode |= ATTR_WRAP;
                tnewline(1);
        }
 
-       if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
-               memmove(&term.line[term.c.y][term.c.x+1],
-                       &term.line[term.c.y][term.c.x],
-                       (term.col - term.c.x - 1) * sizeof(Glyph));
-       }
+       if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col)
+               memmove(gp+1, gp, (term.col - term.c.x - 1) * sizeof(Glyph));
 
        if(term.c.x+width > term.col)
                tnewline(1);
@@ -2604,10 +2644,10 @@ tputc(char *c, int len) {
        tsetchar(c, &term.c.attr, term.c.x, term.c.y);
 
        if(width == 2) {
-               term.line[term.c.y][term.c.x].mode |= ATTR_WIDE;
+               gp->mode |= ATTR_WIDE;
                if(term.c.x+1 < term.col) {
-                       term.line[term.c.y][term.c.x+1].c[0] = '\0';
-                       term.line[term.c.y][term.c.x+1].mode = ATTR_WDUMMY;
+                       gp[1].c[0] = '\0';
+                       gp[1].mode = ATTR_WDUMMY;
                }
        }
        if(term.c.x+width < term.col) {
@@ -2617,17 +2657,20 @@ tputc(char *c, int len) {
        }
 }
 
-int
+void
 tresize(int col, int row) {
        int i;
        int minrow = MIN(row, term.row);
        int mincol = MIN(col, term.col);
        int slide = term.c.y - row + 1;
        bool *bp;
-       Line *orig;
+       TCursor c;
 
-       if(col < 1 || row < 1)
-               return 0;
+       if(col < 1 || row < 1) {
+               fprintf(stderr,
+                       "tresize: error resizing to %dx%d\n", col, row);
+               return;
+       }
 
        /* free unneeded rows */
        i = 0;
@@ -2657,14 +2700,12 @@ tresize(int col, int row) {
 
        /* resize each row to new width, zero-pad if needed */
        for(i = 0; i < minrow; i++) {
-               term.dirty[i] = 1;
                term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
                term.alt[i]  = xrealloc(term.alt[i],  col * sizeof(Glyph));
        }
 
        /* allocate any new rows */
        for(/* i == minrow */; i < row; i++) {
-               term.dirty[i] = 1;
                term.line[i] = xmalloc(col * sizeof(Glyph));
                term.alt[i] = xmalloc(col * sizeof(Glyph));
        }
@@ -2684,9 +2725,9 @@ tresize(int col, int row) {
        tsetscroll(0, row-1);
        /* make use of the LIMIT in tmoveto */
        tmoveto(term.c.x, term.c.y);
-       /* Clearing both screens */
-       orig = term.line;
-       do {
+       /* Clearing both screens (it makes dirty all lines) */
+       c = term.c;
+       for(i = 0; i < 2; i++) {
                if(mincol < col && 0 < minrow) {
                        tclearregion(mincol, 0, col - 1, minrow - 1);
                }
@@ -2694,9 +2735,9 @@ tresize(int col, int row) {
                        tclearregion(0, minrow, col - 1, row - 1);
                }
                tswapscreen();
-       } while(orig != term.line);
-
-       return (slide > 0);
+               tcursor(CURSOR_LOAD);
+       }
+       term.c = c;
 }
 
 void
@@ -2718,17 +2759,17 @@ sixd_to_16bit(int x) {
 
 void
 xloadcols(void) {
-       int i, r, g, b;
+       int i;
        XRenderColor color = { .alpha = 0xffff };
        static bool loaded;
-       Colour *cp;
+       Color *cp;
 
        if(loaded) {
                for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
                        XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
        }
 
-       /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
+       /* load colors [0-15] and [256-LEN(colorname)] (config.h) */
        for(i = 0; i < LEN(colorname); i++) {
                if(!colorname[i])
                        continue;
@@ -2737,27 +2778,20 @@ xloadcols(void) {
                }
        }
 
-       /* load colors [16-255] ; same colors as xterm */
-       for(i = 16, r = 0; r < 6; r++) {
-               for(g = 0; g < 6; g++) {
-                       for(b = 0; b < 6; b++) {
-                               color.red = sixd_to_16bit(r);
-                               color.green = sixd_to_16bit(g);
-                               color.blue = sixd_to_16bit(b);
-                               if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
-                                       die("Could not allocate color %d\n", i);
-                               }
-                               i++;
-                       }
-               }
+       /* load colors [16-231] ; same colors as xterm */
+       for(i = 16; i < 6*6*6+16; i++) {
+               color.red   = sixd_to_16bit( ((i-16)/36)%6 );
+               color.green = sixd_to_16bit( ((i-16)/6) %6 );
+               color.blue  = sixd_to_16bit( ((i-16)/1) %6 );
+               if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
+                       die("Could not allocate color %d\n", i);
        }
 
-       for(r = 0; r < 24; r++, i++) {
-               color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
-               if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
-                                       &dc.col[i])) {
+       /* load colors [232-255] ; grayscale */
+       for(; i < 256; i++) {
+               color.red = color.green = color.blue = 0x0808 + 0x0a0a * (i-(6*6*6+16));
+               if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
                        die("Could not allocate color %d\n", i);
-               }
        }
        loaded = true;
 }
@@ -2765,33 +2799,45 @@ xloadcols(void) {
 int
 xsetcolorname(int x, const char *name) {
        XRenderColor color = { .alpha = 0xffff };
-       Colour colour;
-       if (x < 0 || x > LEN(colorname))
-               return -1;
+       Color ncolor;
+
+       if(!BETWEEN(x, 0, LEN(colorname)))
+               return 1;
+
        if(!name) {
-               if(16 <= x && x < 16 + 216) {
-                       int r = (x - 16) / 36, g = ((x - 16) % 36) / 6, b = (x - 16) % 6;
-                       color.red = sixd_to_16bit(r);
-                       color.green = sixd_to_16bit(g);
-                       color.blue = sixd_to_16bit(b);
-                       if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
-                               return 0; /* something went wrong */
-                       dc.col[x] = colour;
-                       return 1;
-               } else if (16 + 216 <= x && x < 256) {
-                       color.red = color.green = color.blue = 0x0808 + 0x0a0a * (x - (16 + 216));
-                       if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &colour))
-                               return 0; /* something went wrong */
-                       dc.col[x] = colour;
-                       return 1;
-               } else {
+               if(BETWEEN(x, 16, 16 + 215)) { /* 256 color */
+                       color.red   = sixd_to_16bit( ((x-16)/36)%6 );
+                       color.green = sixd_to_16bit( ((x-16)/6) %6 );
+                       color.blue  = sixd_to_16bit( ((x-16)/1) %6 );
+                       if(!XftColorAllocValue(xw.dpy, xw.vis,
+                                               xw.cmap, &color, &ncolor)) {
+                               return 1;
+                       }
+
+                       XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
+                       dc.col[x] = ncolor;
+                       return 0;
+               } else if(BETWEEN(x, 16 + 216, 255)) { /* greyscale */
+                       color.red = color.green = color.blue = \
+                                   0x0808 + 0x0a0a * (x - (16 + 216));
+                       if(!XftColorAllocValue(xw.dpy, xw.vis,
+                                               xw.cmap, &color, &ncolor)) {
+                               return 1;
+                       }
+
+                       XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
+                       dc.col[x] = ncolor;
+                       return 0;
+               } else { /* system colors */
                        name = colorname[x];
                }
        }
-       if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &colour))
-               return 0;
-       dc.col[x] = colour;
-       return 1;
+       if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &ncolor))
+               return 1;
+
+       XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
+       dc.col[x] = ncolor;
+       return 0;
 }
 
 void
@@ -2821,18 +2867,24 @@ xhints(void) {
        XSizeHints *sizeh = NULL;
 
        sizeh = XAllocSizeHints();
-       if(xw.isfixed == False) {
-               sizeh->flags = PSize | PResizeInc | PBaseSize;
-               sizeh->height = xw.h;
-               sizeh->width = xw.w;
-               sizeh->height_inc = xw.ch;
-               sizeh->width_inc = xw.cw;
-               sizeh->base_height = 2 * borderpx;
-               sizeh->base_width = 2 * borderpx;
-       } else {
-               sizeh->flags = PMaxSize | PMinSize;
-               sizeh->min_width = sizeh->max_width = xw.fw;
-               sizeh->min_height = sizeh->max_height = xw.fh;
+
+       sizeh->flags = PSize | PResizeInc | PBaseSize;
+       sizeh->height = xw.h;
+       sizeh->width = xw.w;
+       sizeh->height_inc = xw.ch;
+       sizeh->width_inc = xw.cw;
+       sizeh->base_height = 2 * borderpx;
+       sizeh->base_width = 2 * borderpx;
+       if(xw.isfixed == True) {
+               sizeh->flags |= PMaxSize | PMinSize;
+               sizeh->min_width = sizeh->max_width = xw.w;
+               sizeh->min_height = sizeh->max_height = xw.h;
+       }
+       if(xw.gm & (XValue|YValue)) {
+               sizeh->flags |= USPosition | PWinGravity;
+               sizeh->x = xw.l;
+               sizeh->y = xw.t;
+               sizeh->win_gravity = xgeommasktogravity(xw.gm);
        }
 
        XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
@@ -2841,6 +2893,19 @@ xhints(void) {
 }
 
 int
+xgeommasktogravity(int mask) {
+       switch(mask & (XNegative|YNegative)) {
+       case 0:
+               return NorthWestGravity;
+       case XNegative:
+               return NorthEastGravity;
+       case YNegative:
+               return SouthWestGravity;
+       }
+       return SouthEastGravity;
+}
+
+int
 xloadfont(Font *f, FcPattern *pattern) {
        FcPattern *match;
        FcResult result;
@@ -2873,6 +2938,7 @@ xloadfonts(char *fontstr, double fontsize) {
        FcPattern *pattern;
        FcResult r_sz, r_psz;
        double fontval;
+       float ceilf(float);
 
        if(fontstr[0] == '-') {
                pattern = XftXlfdParse(fontstr, False, False);
@@ -2918,8 +2984,8 @@ xloadfonts(char *fontstr, double fontsize) {
        }
 
        /* Setting character width and height. */
-       xw.cw = CEIL(dc.font.width * cwscale);
-       xw.ch = CEIL(dc.font.height * chscale);
+       xw.cw = ceilf(dc.font.width * cwscale);
+       xw.ch = ceilf(dc.font.height * chscale);
 
        FcPatternDel(pattern, FC_SLANT);
        FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
@@ -2958,13 +3024,9 @@ xunloadfont(Font *f) {
 
 void
 xunloadfonts(void) {
-       int i;
-
        /* Free the loaded fonts in the font cache.  */
-       for(i = 0; i < frclen; i++) {
-               XftFontClose(xw.dpy, frc[i].font);
-       }
-       frclen = 0;
+       while(frclen > 0)
+               XftFontClose(xw.dpy, frc[--frclen].font);
 
        xunloadfont(&dc.font);
        xunloadfont(&dc.bfont);
@@ -2978,6 +3040,7 @@ xzoom(const Arg *arg) {
        xloadfonts(usedfont, usedfontsize + arg->i);
        cresize(0, 0);
        redraw(0);
+       xhints();
 }
 
 void
@@ -2985,7 +3048,6 @@ xinit(void) {
        XGCValues gcvalues;
        Cursor cursor;
        Window parent;
-       int sw, sh;
        pid_t thispid = getpid();
 
        if(!(xw.dpy = XOpenDisplay(NULL)))
@@ -3005,23 +3067,12 @@ xinit(void) {
        xloadcols();
 
        /* adjust fixed window geometry */
-       if(xw.isfixed) {
-               sw = DisplayWidth(xw.dpy, xw.scr);
-               sh = DisplayHeight(xw.dpy, xw.scr);
-               if(xw.fx < 0)
-                       xw.fx = sw + xw.fx - xw.fw - 1;
-               if(xw.fy < 0)
-                       xw.fy = sh + xw.fy - xw.fh - 1;
-
-               xw.h = xw.fh;
-               xw.w = xw.fw;
-       } else {
-               /* window - default size */
-               xw.h = 2 * borderpx + term.row * xw.ch;
-               xw.w = 2 * borderpx + term.col * xw.cw;
-               xw.fx = 0;
-               xw.fy = 0;
-       }
+       xw.w = 2 * borderpx + term.col * xw.cw;
+       xw.h = 2 * borderpx + term.row * xw.ch;
+       if(xw.gm & XNegative)
+               xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
+       if(xw.gm & YNegative)
+               xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2;
 
        /* Events */
        xw.attrs.background_pixel = dc.col[defaultbg].pixel;
@@ -3034,7 +3085,7 @@ xinit(void) {
 
        parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
                        XRootWindow(xw.dpy, xw.scr);
-       xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
+       xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
                        xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
                        xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
                        | CWEventMask | CWColormap, &xw.attrs);
@@ -3083,7 +3134,7 @@ xinit(void) {
 
        xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
        XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
-                       PropModeReplace, (unsigned char *)&thispid, 1);
+                       PropModeReplace, (uchar *)&thispid, 1);
 
        xresettitle();
        XMapWindow(xw.dpy, xw.win);
@@ -3104,7 +3155,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
        FcPattern *fcpattern, *fontpattern;
        FcFontSet *fcsets[] = { NULL };
        FcCharSet *fccharset;
-       Colour *fg, *bg, *temp, revfg, revbg, truefg, truebg;
+       Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
        XRenderColor colfg, colbg;
        XRectangle r;
        int oneatatime;
@@ -3149,24 +3200,20 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
        }
 
        if(base.mode & ATTR_BOLD) {
-               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
+                * change basic system colors [0-7]
+                * to bright system colors [8-15]
                 */
-               font = &dc.bfont;
-               frcflags = FRC_BOLD;
+               if(BETWEEN(base.fg, 0, 7) && !(base.mode & ATTR_FAINT))
+                       fg = &dc.col[base.fg + 8];
+
+               if(base.mode & ATTR_ITALIC) {
+                       font = &dc.ibfont;
+                       frcflags = FRC_ITALICBOLD;
+               } else {
+                       font = &dc.bfont;
+                       frcflags = FRC_BOLD;
+               }
        }
 
        if(IS_SET(MODE_REVERSE)) {
@@ -3201,9 +3248,20 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                bg = temp;
        }
 
+       if(base.mode & ATTR_FAINT && !(base.mode & ATTR_BOLD)) {
+               colfg.red = fg->color.red / 2;
+               colfg.green = fg->color.green / 2;
+               colfg.blue = fg->color.blue / 2;
+               XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
+               fg = &revfg;
+       }
+
        if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
                fg = bg;
 
+       if(base.mode & ATTR_INVISIBLE)
+               fg = bg;
+
        /* Intelligent cleaning up of the borders. */
        if(x == 0) {
                xclear(0, (y == 0)? 0 : winy, borderpx,
@@ -3246,28 +3304,22 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                        bytelen -= u8cblen;
 
                        doesexist = XftCharExists(xw.dpy, font->match, unicodep);
-                       if(oneatatime || !doesexist || bytelen <= 0) {
-                               if(oneatatime || bytelen <= 0) {
-                                       if(doesexist) {
-                                               u8fl++;
-                                               u8fblen += u8cblen;
-                                       }
-                               }
-
-                               if(u8fl > 0) {
-                                       XftDrawStringUtf8(xw.draw, fg,
-                                                       font->match, xp,
-                                                       winy + font->ascent,
-                                                       (FcChar8 *)u8fs,
-                                                       u8fblen);
-                                       xp += xw.cw * u8fl;
-
-                               }
-                               break;
+                       if(doesexist) {
+                                       u8fl++;
+                                       u8fblen += u8cblen;
+                                       if(!oneatatime && bytelen > 0)
+                                                       continue;
                        }
 
-                       u8fl++;
-                       u8fblen += u8cblen;
+                       if(u8fl > 0) {
+                               XftDrawStringUtf8(xw.draw, fg,
+                                               font->match, xp,
+                                               winy + font->ascent,
+                                               (FcChar8 *)u8fs,
+                                               u8fblen);
+                               xp += xw.cw * u8fl;
+                       }
+                       break;
                }
                if(doesexist) {
                        if(oneatatime)
@@ -3354,6 +3406,11 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                                width, 1);
        }
 
+       if(base.mode & ATTR_STRUCK) {
+               XftDrawRect(xw.draw, fg, winx, winy + 2 * font->ascent / 3,
+                               width, 1);
+       }
+
        /* Reset clip to none. */
        XftDrawSetClip(xw.draw, 0);
 }
@@ -3439,6 +3496,7 @@ void
 redraw(int timeout) {
        struct timespec tv = {0, timeout * 1000};
 
+       tfulldirt();
        draw();
 
        if(timeout > 0) {
@@ -3462,12 +3520,9 @@ 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.ob.x != -1;
+       bool ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
        long unicodep;
 
-       if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
-               ena_sel = 0;
-
        if(!(xw.state & WIN_VISIBLE))
                return;
 
@@ -3544,7 +3599,7 @@ void
 xseturgency(int add) {
        XWMHints *h = XGetWMHints(xw.dpy, xw.win);
 
-       h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
+       MODBIT(h->flags, add, XUrgencyHint);
        XSetWMHints(xw.dpy, xw.win, h);
        XFree(h);
 }
@@ -3717,11 +3772,14 @@ run(void) {
        int w = xw.w, h = xw.h;
        fd_set rfd;
        int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
-       struct timeval drawtimeout, *tv = NULL, now, last, lastblink;
+       struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
+       long deltatime;
 
        /* Waiting for window mapping */
        while(1) {
                XNextEvent(xw.dpy, &ev);
+               if(XFilterEvent(&ev, None))
+                       continue;
                if(ev.type == ConfigureNotify) {
                        w = ev.xconfigure.width;
                        h = ev.xconfigure.height;
@@ -3731,22 +3789,17 @@ run(void) {
        }
 
        ttynew();
-       if(!xw.isfixed)
-               cresize(w, h);
-       else
-               cresize(xw.fw, xw.fh);
+       cresize(w, h);
 
-       gettimeofday(&last, NULL);
+       clock_gettime(CLOCK_MONOTONIC, &last);
        lastblink = last;
 
        for(xev = actionfps;;) {
-               long deltatime;
-
                FD_ZERO(&rfd);
                FD_SET(cmdfd, &rfd);
                FD_SET(xfd, &rfd);
 
-               if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
+               if(pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
                        if(errno == EINTR)
                                continue;
                        die("select failed: %s\n", strerror(errno));
@@ -3763,9 +3816,9 @@ run(void) {
                if(FD_ISSET(xfd, &rfd))
                        xev = actionfps;
 
-               gettimeofday(&now, NULL);
+               clock_gettime(CLOCK_MONOTONIC, &now);
                drawtimeout.tv_sec = 0;
-               drawtimeout.tv_usec = (1000/xfps) * 1000;
+               drawtimeout.tv_nsec = (1000/xfps) * 1E6;
                tv = &drawtimeout;
 
                dodraw = 0;
@@ -3800,9 +3853,9 @@ run(void) {
                                if(blinkset) {
                                        if(TIMEDIFF(now, lastblink) \
                                                        > blinktimeout) {
-                                               drawtimeout.tv_usec = 1;
+                                               drawtimeout.tv_nsec = 1000;
                                        } else {
-                                               drawtimeout.tv_usec = (1000 * \
+                                               drawtimeout.tv_nsec = (1E6 * \
                                                        (blinktimeout - \
                                                        TIMEDIFF(now,
                                                                lastblink)));
@@ -3817,18 +3870,17 @@ run(void) {
 
 void
 usage(void) {
-       die("%s " VERSION " (c) 2010-2013 st engineers\n" \
-       "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]" \
-       " [-t title] [-w windowid] [-e command ...]\n", argv0);
+       die("%s " VERSION " (c) 2010-2014 st engineers\n" \
+       "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
+       "          [-i] [-t title] [-w windowid] [-e command ...]\n", argv0);
 }
 
 int
 main(int argc, char *argv[]) {
-       int bitm, xr, yr;
-       uint wr, hr;
        char *titles;
+       uint cols = 80, rows = 24;
 
-       xw.fw = xw.fh = xw.fx = xw.fy = 0;
+       xw.l = xw.t = 0;
        xw.isfixed = False;
 
        ARGBEGIN {
@@ -3852,22 +3904,11 @@ main(int argc, char *argv[]) {
                opt_font = EARGF(usage());
                break;
        case 'g':
-               bitm = XParseGeometry(EARGF(usage()), &xr, &yr, &wr, &hr);
-               if(bitm & XValue)
-                       xw.fx = xr;
-               if(bitm & YValue)
-                       xw.fy = yr;
-               if(bitm & WidthValue)
-                       xw.fw = (int)wr;
-               if(bitm & HeightValue)
-                       xw.fh = (int)hr;
-               if(bitm & XNegative && xw.fx == 0)
-                       xw.fx = -1;
-               if(bitm & YNegative && xw.fy == 0)
-                       xw.fy = -1;
-
-               if(xw.fh != 0 && xw.fw != 0)
-                       xw.isfixed = True;
+               xw.gm = XParseGeometry(EARGF(usage()),
+                               &xw.l, &xw.t, &cols, &rows);
+               break;
+       case 'i':
+               xw.isfixed = True;
                break;
        case 'o':
                opt_io = EARGF(usage());
@@ -3886,7 +3927,7 @@ main(int argc, char *argv[]) {
 run:
        setlocale(LC_CTYPE, "");
        XSetLocaleModifiers("");
-       tnew(80, 24);
+       tnew(cols? cols : 1, rows? rows : 1);
        xinit();
        selinit();
        run();