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Add newline in error messages
[st.git] / st.c
diff --git a/st.c b/st.c
index 586d124..c408ca9 100644 (file)
--- a/st.c
+++ b/st.c
@@ -48,13 +48,11 @@
 #define ESC_ARG_SIZ   16
 #define STR_BUF_SIZ   256
 #define STR_ARG_SIZ   16
 #define ESC_ARG_SIZ   16
 #define STR_BUF_SIZ   256
 #define STR_ARG_SIZ   16
-#define DRAW_BUF_SIZ  1024
+#define DRAW_BUF_SIZ  20*1024
 #define UTF_SIZ       4
 #define XK_NO_MOD     UINT_MAX
 #define XK_ANY_MOD    0
 
 #define UTF_SIZ       4
 #define XK_NO_MOD     UINT_MAX
 #define XK_ANY_MOD    0
 
-#define SELECT_TIMEOUT (20*1000) /* 20 ms */
-#define DRAW_TIMEOUT  (20*1000) /* 20 ms */
 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
 
 #define SERRNO strerror(errno)
 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
 
 #define SERRNO strerror(errno)
@@ -76,6 +74,8 @@ enum glyph_attribute {
        ATTR_UNDERLINE = 2,
        ATTR_BOLD      = 4,
        ATTR_GFX       = 8,
        ATTR_UNDERLINE = 2,
        ATTR_BOLD      = 4,
        ATTR_GFX       = 8,
+       ATTR_ITALIC    = 16,
+       ATTR_BLINK     = 32,
 };
 
 enum cursor_movement {
 };
 
 enum cursor_movement {
@@ -203,7 +203,6 @@ typedef struct {
        int ch; /* char height */
        int cw; /* char width  */
        char state; /* focus, redraw, visible */
        int ch; /* char height */
        int cw; /* char width  */
        char state; /* focus, redraw, visible */
-       struct timeval lastdraw;
 } XWindow;
 
 typedef struct {
 } XWindow;
 
 typedef struct {
@@ -221,6 +220,7 @@ typedef struct {
        struct {int x, y;} b, e;
        char *clip;
        Atom xtarget;
        struct {int x, y;} b, e;
        char *clip;
        Atom xtarget;
+       bool alt;
        struct timeval tclick1;
        struct timeval tclick2;
 } Selection;
        struct timeval tclick1;
        struct timeval tclick2;
 } Selection;
@@ -237,7 +237,7 @@ typedef struct {
                short lbearing;
                short rbearing;
                XFontSet set;
                short lbearing;
                short rbearing;
                XFontSet set;
-       } font, bfont;
+       } font, bfont, ifont, ibfont;
 } DC;
 
 static void die(const char*, ...);
 } DC;
 
 static void die(const char*, ...);
@@ -247,7 +247,6 @@ static void drawregion(int, int, int, int);
 static void execsh(void);
 static void sigchld(int);
 static void run(void);
 static void execsh(void);
 static void sigchld(int);
 static void run(void);
-static bool last_draw_too_old(void);
 
 static void csidump(void);
 static void csihandle(void);
 
 static void csidump(void);
 static void csihandle(void);
@@ -289,10 +288,10 @@ 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 xdraws(char *, Glyph, int, int, int, int);
 static void xhints(void);
 static void xclear(int, int, int, int);
-static void xcopy();
 static void xdrawcursor(void);
 static void xinit(void);
 static void xloadcols(void);
 static void xdrawcursor(void);
 static void xinit(void);
 static void xloadcols(void);
+static void xresettitle(void);
 static void xseturgency(int);
 static void xsetsel(char*);
 static void xresize(int, int);
 static void xseturgency(int);
 static void xsetsel(char*);
 static void xresize(int, int);
@@ -309,12 +308,13 @@ static void brelease(XEvent *);
 static void bpress(XEvent *);
 static void bmotion(XEvent *);
 static void selnotify(XEvent *);
 static void bpress(XEvent *);
 static void bmotion(XEvent *);
 static void selnotify(XEvent *);
+static void selclear(XEvent *);
 static void selrequest(XEvent *);
 
 static void selinit(void);
 static inline bool selected(int, int);
 static void selcopy(void);
 static void selrequest(XEvent *);
 
 static void selinit(void);
 static inline bool selected(int, int);
 static void selcopy(void);
-static void selpaste();
+static void selpaste(void);
 static void selscroll(int, int);
 
 static int utf8decode(char *, long *);
 static void selscroll(int, int);
 
 static int utf8decode(char *, long *);
@@ -322,6 +322,10 @@ static int utf8encode(long *, char *);
 static int utf8size(char *);
 static int isfullutf8(char *, int);
 
 static int utf8size(char *);
 static int isfullutf8(char *, int);
 
+static void *xmalloc(size_t);
+static void *xrealloc(void *, size_t);
+static void *xcalloc(size_t nmemb, size_t size);
+
 static void (*handler[LASTEvent])(XEvent *) = {
        [KeyPress] = kpress,
        [ClientMessage] = cmessage,
 static void (*handler[LASTEvent])(XEvent *) = {
        [KeyPress] = kpress,
        [ClientMessage] = cmessage,
@@ -334,6 +338,7 @@ static void (*handler[LASTEvent])(XEvent *) = {
        [MotionNotify] = bmotion,
        [ButtonPress] = bpress,
        [ButtonRelease] = brelease,
        [MotionNotify] = bmotion,
        [ButtonPress] = bpress,
        [ButtonRelease] = brelease,
+       [SelectionClear] = selclear,
        [SelectionNotify] = selnotify,
        [SelectionRequest] = selrequest,
 };
        [SelectionNotify] = selnotify,
        [SelectionRequest] = selrequest,
 };
@@ -347,13 +352,36 @@ static STREscape strescseq;
 static int cmdfd;
 static pid_t pid;
 static Selection sel;
 static int cmdfd;
 static pid_t pid;
 static Selection sel;
-static FILE *fileio;
+static int iofd = -1;
 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_cmd  = NULL;
 static char *opt_io    = NULL;
 static char *opt_title = NULL;
 static char *opt_embed = NULL;
 static char *opt_class = NULL;
 
+void *
+xmalloc(size_t len) {
+       void *p = malloc(len);
+       if(!p)
+               die("Out of memory\n");
+       return p;
+}
+
+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;
+}
+
 int
 utf8decode(char *s, long *u) {
        uchar c;
 int
 utf8decode(char *s, long *u) {
        uchar c;
@@ -542,8 +570,11 @@ bpress(XEvent *e) {
        if(IS_SET(MODE_MOUSE))
                mousereport(e);
        else if(e->xbutton.button == Button1) {
        if(IS_SET(MODE_MOUSE))
                mousereport(e);
        else if(e->xbutton.button == Button1) {
-               if(sel.bx != -1)
+               if(sel.bx != -1) {
+                       sel.bx = -1;
                        tsetdirt(sel.b.y, sel.e.y);
                        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.mode = 1;
                sel.ex = sel.bx = X2COL(e->xbutton.x);
                sel.ey = sel.by = Y2ROW(e->xbutton.y);
@@ -560,7 +591,7 @@ selcopy(void) {
 
        else {
                bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
 
        else {
                bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
-               ptr = str = malloc(bufsize);
+               ptr = str = xmalloc(bufsize);
 
                /* append every set & selected glyph to the selection */
                for(y = 0; y < term.row; y++) {
 
                /* append every set & selected glyph to the selection */
                for(y = 0; y < term.row; y++) {
@@ -579,6 +610,7 @@ selcopy(void) {
                }
                *ptr = 0;
        }
                }
                *ptr = 0;
        }
+       sel.alt = IS_SET(MODE_ALTSCREEN);
        xsetsel(str);
 }
 
        xsetsel(str);
 }
 
@@ -609,6 +641,13 @@ selpaste() {
        XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
 }
 
        XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
 }
 
+void selclear(XEvent *e) {
+       if(sel.bx == -1)
+               return;
+       sel.bx = -1;
+       tsetdirt(sel.b.y, sel.e.y);
+}
+
 void
 selrequest(XEvent *e) {
        XSelectionRequestEvent *xsre;
 void
 selrequest(XEvent *e) {
        XSelectionRequestEvent *xsre;
@@ -656,8 +695,6 @@ xsetsel(char *str) {
 
        clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
        XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
 
        clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
        XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
-
-       XFlush(xw.dpy);
 }
 
 void
 }
 
 void
@@ -700,7 +737,6 @@ brelease(XEvent *e) {
        }
        memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
        gettimeofday(&sel.tclick1, NULL);
        }
        memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
        gettimeofday(&sel.tclick1, NULL);
-       draw();
 }
 
 void
 }
 
 void
@@ -717,7 +753,6 @@ bmotion(XEvent *e) {
                        int starty = MIN(oldey, sel.ey);
                        int endy = MAX(oldey, sel.ey);
                        tsetdirt(starty, endy);
                        int starty = MIN(oldey, sel.ey);
                        int endy = MAX(oldey, sel.ey);
                        tsetdirt(starty, endy);
-                       draw();
                }
        }
 }
                }
        }
 }
@@ -737,6 +772,17 @@ execsh(void) {
        char **args;
        char *envshell = getenv("SHELL");
 
        char **args;
        char *envshell = getenv("SHELL");
 
+       unsetenv("COLUMNS");
+       unsetenv("LINES");
+       unsetenv("TERMCAP");
+
+       signal(SIGCHLD, SIG_DFL);
+       signal(SIGHUP, SIG_DFL);
+       signal(SIGINT, SIG_DFL);
+       signal(SIGQUIT, SIG_DFL);
+       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);
        putenv("TERM="TNAME);
        args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
@@ -783,9 +829,15 @@ ttynew(void) {
                close(s);
                cmdfd = m;
                signal(SIGCHLD, sigchld);
                close(s);
                cmdfd = m;
                signal(SIGCHLD, sigchld);
-               if (opt_io && !(fileio = fopen(opt_io, "w"))) {
-                       fprintf(stderr, "Error opening %s:%s\n",
-                               opt_io, strerror(errno));
+               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));
+                               }
+                       }
                }
        }
 }
                }
        }
 }
@@ -839,7 +891,8 @@ ttyresize(int x, int y) {
 
        w.ws_row = term.row;
        w.ws_col = term.col;
 
        w.ws_row = term.row;
        w.ws_col = term.col;
-       w.ws_xpixel = w.ws_ypixel = 0;
+       w.ws_xpixel = xw.w;
+       w.ws_ypixel = xw.h;
        if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
                fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
 }
        if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
                fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
 }
@@ -882,7 +935,7 @@ treset(void) {
        }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
 
        memset(term.tabs, 0, term.col * sizeof(*term.tabs));
        }, .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 = TAB; i < term.col; i += TAB)
                term.tabs[i] = 1;
        term.top = 0, term.bot = term.row - 1;
        term.mode = MODE_WRAP;
                term.tabs[i] = 1;
        term.top = 0, term.bot = term.row - 1;
        term.mode = MODE_WRAP;
@@ -893,14 +946,14 @@ void
 tnew(int col, int row) {
        /* set screen size */
        term.row = row, term.col = col;
 tnew(int col, int row) {
        /* set screen size */
        term.row = row, term.col = col;
-       term.line = malloc(term.row * sizeof(Line));
-       term.alt  = malloc(term.row * sizeof(Line));
-       term.dirty = malloc(term.row * sizeof(*term.dirty));
-       term.tabs = malloc(term.col * sizeof(*term.tabs));
+       term.line = xmalloc(term.row * sizeof(Line));
+       term.alt  = xmalloc(term.row * sizeof(Line));
+       term.dirty = xmalloc(term.row * sizeof(*term.dirty));
+       term.tabs = xmalloc(term.col * sizeof(*term.tabs));
 
        for(row = 0; row < term.row; row++) {
 
        for(row = 0; row < term.row; row++) {
-               term.line[row] = malloc(term.col * sizeof(Glyph));
-               term.alt [row] = malloc(term.col * sizeof(Glyph));
+               term.line[row] = xmalloc(term.col * sizeof(Glyph));
+               term.alt [row] = xmalloc(term.col * sizeof(Glyph));
                term.dirty[row] = 0;
        }
        memset(term.tabs, 0, term.col * sizeof(*term.tabs));
                term.dirty[row] = 0;
        }
        memset(term.tabs, 0, term.col * sizeof(*term.tabs));
@@ -1108,31 +1161,39 @@ tsetattr(int *attr, int l) {
        for(i = 0; i < l; i++) {
                switch(attr[i]) {
                case 0:
        for(i = 0; i < l; i++) {
                switch(attr[i]) {
                case 0:
-                       term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD);
+                       term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
+                                       | ATTR_ITALIC | ATTR_BLINK);
                        term.c.attr.fg = DefaultFG;
                        term.c.attr.bg = DefaultBG;
                        break;
                case 1:
                        term.c.attr.mode |= ATTR_BOLD;
                        break;
                        term.c.attr.fg = DefaultFG;
                        term.c.attr.bg = DefaultBG;
                        break;
                case 1:
                        term.c.attr.mode |= ATTR_BOLD;
                        break;
-               case 3: /* enter standout (highlight) mode TODO: make it italic */
-                       term.c.attr.mode |= ATTR_REVERSE;
+               case 3: /* enter standout (highlight) */
+                       term.c.attr.mode |= ATTR_ITALIC;
                        break;
                case 4:
                        term.c.attr.mode |= ATTR_UNDERLINE;
                        break;
                        break;
                case 4:
                        term.c.attr.mode |= ATTR_UNDERLINE;
                        break;
+               case 5:
+                       term.c.attr.mode |= ATTR_BLINK;
+                       break;
                case 7:
                        term.c.attr.mode |= ATTR_REVERSE;
                        break;
                case 7:
                        term.c.attr.mode |= ATTR_REVERSE;
                        break;
+               case 21:
                case 22:
                        term.c.attr.mode &= ~ATTR_BOLD;
                        break;
                case 22:
                        term.c.attr.mode &= ~ATTR_BOLD;
                        break;
-               case 23: /* leave standout (highlight) mode TODO: make it italic */
-                       term.c.attr.mode &= ~ATTR_REVERSE;
+               case 23: /* leave standout (highlight) mode */
+                       term.c.attr.mode &= ~ATTR_ITALIC;
                        break;
                case 24:
                        term.c.attr.mode &= ~ATTR_UNDERLINE;
                        break;
                        break;
                case 24:
                        term.c.attr.mode &= ~ATTR_UNDERLINE;
                        break;
+               case 25:
+                       term.c.attr.mode &= ~ATTR_BLINK;
+                       break;
                case 27:
                        term.c.attr.mode &= ~ATTR_REVERSE;
                        break;
                case 27:
                        term.c.attr.mode &= ~ATTR_REVERSE;
                        break;
@@ -1172,7 +1233,7 @@ tsetattr(int *attr, int l) {
                        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], 90, 97))
                                term.c.attr.fg = attr[i] - 90 + 8;
                        else if(BETWEEN(attr[i], 100, 107))
-                               term.c.attr.fg = attr[i] - 100 + 8;
+                               term.c.attr.bg = attr[i] - 100 + 8;
                        else
                                fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]), csidump();
                        break;
                        else
                                fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]), csidump();
                        break;
@@ -1201,7 +1262,7 @@ void
 tsetmode(bool priv, bool set, int *args, int narg) {
        int *lim, mode;
 
 tsetmode(bool priv, bool set, int *args, int narg) {
        int *lim, mode;
 
-       for (lim = args + narg; args < lim; ++args) {
+       for(lim = args + narg; args < lim; ++args) {
                if(priv) {
                        switch(*args) {
                        case 1:
                if(priv) {
                        switch(*args) {
                        case 1:
@@ -1210,7 +1271,7 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                        case 5: /* DECSCNM -- Reverve video */
                                mode = term.mode;
                                MODBIT(term.mode,set, MODE_REVERSE);
                        case 5: /* DECSCNM -- Reverve video */
                                mode = term.mode;
                                MODBIT(term.mode,set, MODE_REVERSE);
-                               if (mode != term.mode)
+                               if(mode != term.mode)
                                        redraw();
                                break;
                        case 7:
                                        redraw();
                                break;
                        case 7:
@@ -1235,11 +1296,11 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                        case 1047:
                                if(IS_SET(MODE_ALTSCREEN))
                                        tclearregion(0, 0, term.col-1, term.row-1);
                        case 1047:
                                if(IS_SET(MODE_ALTSCREEN))
                                        tclearregion(0, 0, term.col-1, term.row-1);
-                               if ((set && !IS_SET(MODE_ALTSCREEN)) ||
+                               if((set && !IS_SET(MODE_ALTSCREEN)) ||
                                    (!set && IS_SET(MODE_ALTSCREEN))) {
                                            tswapscreen();
                                }
                                    (!set && IS_SET(MODE_ALTSCREEN))) {
                                            tswapscreen();
                                }
-                               if (*args != 1049)
+                               if(*args != 1049)
                                        break;
                                /* pass through */
                        case 1048:
                                        break;
                                /* pass through */
                        case 1048:
@@ -1320,19 +1381,19 @@ csihandle(void) {
                }
                break;
        case 'G': /* CHA -- Move to <col> */
                }
                break;
        case 'G': /* CHA -- Move to <col> */
-       case '`': /* XXX: HPA -- same? */
+       case '`': /* HPA */
                DEFAULT(csiescseq.arg[0], 1);
                tmoveto(csiescseq.arg[0]-1, term.c.y);
                break;
        case 'H': /* CUP -- Move to <row> <col> */
                DEFAULT(csiescseq.arg[0], 1);
                tmoveto(csiescseq.arg[0]-1, term.c.y);
                break;
        case 'H': /* CUP -- Move to <row> <col> */
-       case 'f': /* XXX: HVP -- same? */
+       case 'f': /* HVP */
                DEFAULT(csiescseq.arg[0], 1);
                DEFAULT(csiescseq.arg[1], 1);
                tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
                break;
        case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
                DEFAULT(csiescseq.arg[0], 1);
                DEFAULT(csiescseq.arg[0], 1);
                DEFAULT(csiescseq.arg[1], 1);
                tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
                break;
        case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
                DEFAULT(csiescseq.arg[0], 1);
-               while (csiescseq.arg[0]--)
+               while(csiescseq.arg[0]--)
                        tputtab(1);
                break;
        case 'J': /* ED -- Clear screen */
                        tputtab(1);
                break;
        case 'J': /* ED -- Clear screen */
@@ -1397,7 +1458,7 @@ csihandle(void) {
                break;
        case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
                DEFAULT(csiescseq.arg[0], 1);
                break;
        case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
                DEFAULT(csiescseq.arg[0], 1);
-               while (csiescseq.arg[0]--)
+               while(csiescseq.arg[0]--)
                        tputtab(0);
                break;
        case 'd': /* VPA -- Move to <row> */
                        tputtab(0);
                break;
        case 'd': /* VPA -- Move to <row> */
@@ -1484,6 +1545,9 @@ strhandle(void) {
                        break;
                }
                break;
                        break;
                }
                break;
+       case 'k': /* old title set compatibility */
+               XStoreName(xw.dpy, xw.win, strescseq.buf);
+               break;
        case 'P': /* DSC -- Device Control String */
        case '_': /* APC -- Application Program Command */
        case '^': /* PM -- Privacy Message */
        case 'P': /* DSC -- Device Control String */
        case '_': /* APC -- Application Program Command */
        case '^': /* PM -- Privacy Message */
@@ -1528,15 +1592,15 @@ void
 tputtab(bool forward) {
        unsigned x = term.c.x;
 
 tputtab(bool forward) {
        unsigned x = term.c.x;
 
-       if (forward) {
-               if (x == term.col)
+       if(forward) {
+               if(x == term.col)
                        return;
                        return;
-               for (++x; x < term.col && !term.tabs[x]; ++x)
+               for(++x; x < term.col && !term.tabs[x]; ++x)
                        /* nothing */ ;
        } else {
                        /* nothing */ ;
        } else {
-               if (x == 0)
+               if(x == 0)
                        return;
                        return;
-               for (--x; x > 0 && !term.tabs[x]; --x)
+               for(--x; x > 0 && !term.tabs[x]; --x)
                        /* nothing */ ;
        }
        tmoveto(x, term.c.y);
                        /* nothing */ ;
        }
        tmoveto(x, term.c.y);
@@ -1546,8 +1610,9 @@ void
 tputc(char *c) {
        char ascii = *c;
 
 tputc(char *c) {
        char ascii = *c;
 
-       if (fileio)
-               putc(ascii, fileio);
+       if(iofd != -1)
+               write(iofd, c, 1);
+
        if(term.esc & ESC_START) {
                if(term.esc & ESC_CSI) {
                        csiescseq.buf[csiescseq.len++] = ascii;
        if(term.esc & ESC_START) {
                if(term.esc & ESC_CSI) {
                        csiescseq.buf[csiescseq.len++] = ascii;
@@ -1566,7 +1631,7 @@ tputc(char *c) {
                                break;
                        default:
                                strescseq.buf[strescseq.len++] = ascii;
                                break;
                        default:
                                strescseq.buf[strescseq.len++] = ascii;
-                               if (strescseq.len+1 >= STR_BUF_SIZ) {
+                               if(strescseq.len+1 >= STR_BUF_SIZ) {
                                        term.esc = 0;
                                        strhandle();
                                }
                                        term.esc = 0;
                                        strhandle();
                                }
@@ -1596,6 +1661,7 @@ tputc(char *c) {
                        case '_': /* APC -- Application Program Command */
                        case '^': /* PM -- Privacy Message */
                        case ']': /* OSC -- Operating System Command */
                        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;
                                strreset();
                                strescseq.type = ascii;
                                term.esc |= ESC_STR;
@@ -1628,6 +1694,7 @@ tputc(char *c) {
                        case 'c': /* RIS -- Reset to inital state */
                                treset();
                                term.esc = 0;
                        case 'c': /* RIS -- Reset to inital state */
                                treset();
                                term.esc = 0;
+                               xresettitle();
                                break;
                        case '=': /* DECPAM -- Application keypad */
                                term.mode |= MODE_APPKEYPAD;
                                break;
                        case '=': /* DECPAM -- Application keypad */
                                term.mode |= MODE_APPKEYPAD;
@@ -1658,6 +1725,8 @@ tputc(char *c) {
                if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
                        sel.bx = -1;
                switch(ascii) {
                if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
                        sel.bx = -1;
                switch(ascii) {
+               case '\0': /* padding character, do nothing */
+                       break;
                case '\t':
                        tputtab(1);
                        break;
                case '\t':
                        tputtab(1);
                        break;
@@ -1722,16 +1791,16 @@ tresize(int col, int row) {
        }
 
        /* resize to new height */
        }
 
        /* resize to new height */
-       term.line = realloc(term.line, row * sizeof(Line));
-       term.alt  = realloc(term.alt,  row * sizeof(Line));
-       term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
-       term.tabs = realloc(term.tabs, col * sizeof(*term.tabs));
+       term.line = xrealloc(term.line, row * sizeof(Line));
+       term.alt  = xrealloc(term.alt,  row * sizeof(Line));
+       term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
+       term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
 
        /* resize each row to new width, zero-pad if needed */
        for(i = 0; i < minrow; i++) {
                term.dirty[i] = 1;
 
        /* resize each row to new width, zero-pad if needed */
        for(i = 0; i < minrow; i++) {
                term.dirty[i] = 1;
-               term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
-               term.alt[i]  = realloc(term.alt[i],  col * sizeof(Glyph));
+               term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
+               term.alt[i]  = xrealloc(term.alt[i],  col * sizeof(Glyph));
                for(x = mincol; x < col; x++) {
                        term.line[i][x].state = 0;
                        term.alt[i][x].state = 0;
                for(x = mincol; x < col; x++) {
                        term.line[i][x].state = 0;
                        term.alt[i][x].state = 0;
@@ -1741,16 +1810,16 @@ tresize(int col, int row) {
        /* allocate any new rows */
        for(/* i == minrow */; i < row; i++) {
                term.dirty[i] = 1;
        /* allocate any new rows */
        for(/* i == minrow */; i < row; i++) {
                term.dirty[i] = 1;
-               term.line[i] = calloc(col, sizeof(Glyph));
-               term.alt [i] = calloc(col, sizeof(Glyph));
+               term.line[i] = xcalloc(col, sizeof(Glyph));
+               term.alt [i] = xcalloc(col, sizeof(Glyph));
        }
        }
-       if (col > term.col) {
+       if(col > term.col) {
                bool *bp = term.tabs + term.col;
 
                memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
                bool *bp = term.tabs + term.col;
 
                memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
-               while (--bp > term.tabs && !*bp)
+               while(--bp > term.tabs && !*bp)
                        /* nothing */ ;
                        /* nothing */ ;
-               for (bp += TAB; bp < term.tabs + col; bp += TAB)
+               for(bp += TAB; bp < term.tabs + col; bp += TAB)
                        *bp = 1;
        }
        /* update terminal size */
                        *bp = 1;
        }
        /* update terminal size */
@@ -1803,7 +1872,7 @@ xloadcols(void) {
 
        for(r = 0; r < 24; r++, i++) {
                color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
 
        for(r = 0; r < 24; r++, i++) {
                color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
-               if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
+               if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
                        dc.col[i] = white;
                        fprintf(stderr, "Could not allocate color %d\n", i);
                } else
                        dc.col[i] = white;
                        fprintf(stderr, "Could not allocate color %d\n", i);
                } else
@@ -1878,14 +1947,24 @@ xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rb
 }
 
 void
 }
 
 void
-initfonts(char *fontstr, char *bfontstr) {
-       if((dc.font.set = xinitfont(fontstr)) == NULL ||
-          (dc.bfont.set = xinitfont(bfontstr)) == NULL)
-               die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
+initfonts(char *fontstr, char *bfontstr, char *ifontstr, char *ibfontstr) {
+       if((dc.font.set = xinitfont(fontstr)) == NULL)
+               die("Can't load font %s\n", fontstr);
+       if((dc.bfont.set = xinitfont(bfontstr)) == NULL)
+               die("Can't load bfont %s\n", bfontstr);
+       if((dc.ifont.set = xinitfont(ifontstr)) == NULL)
+               die("Can't load ifont %s\n", ifontstr);
+       if((dc.ibfont.set = xinitfont(ibfontstr)) == NULL)
+               die("Can't load ibfont %s\n", ibfontstr);
+
        xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
            &dc.font.lbearing, &dc.font.rbearing);
        xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
            &dc.bfont.lbearing, &dc.bfont.rbearing);
        xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
            &dc.font.lbearing, &dc.font.rbearing);
        xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
            &dc.bfont.lbearing, &dc.bfont.rbearing);
+       xgetfontinfo(dc.ifont.set, &dc.ifont.ascent, &dc.ifont.descent,
+           &dc.ifont.lbearing, &dc.ifont.rbearing);
+       xgetfontinfo(dc.ibfont.set, &dc.ibfont.ascent, &dc.ibfont.descent,
+           &dc.ibfont.lbearing, &dc.ibfont.rbearing);
 }
 
 void
 }
 
 void
@@ -1893,12 +1972,23 @@ xinit(void) {
        XSetWindowAttributes attrs;
        Cursor cursor;
        Window parent;
        XSetWindowAttributes attrs;
        Cursor cursor;
        Window parent;
-       int sw, sh;
+       int sw, sh, major, minor;
 
        if(!(xw.dpy = XOpenDisplay(NULL)))
                die("Can't open display\n");
        xw.scr = XDefaultScreen(xw.dpy);
 
 
        if(!(xw.dpy = XOpenDisplay(NULL)))
                die("Can't open display\n");
        xw.scr = XDefaultScreen(xw.dpy);
 
+       /* 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;
+
+       /* colors */
+       xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
+       xloadcols();
+
        /* adjust fixed window geometry */
        if(xw.isfixed) {
                sw = DisplayWidth(xw.dpy, xw.scr);
        /* adjust fixed window geometry */
        if(xw.isfixed) {
                sw = DisplayWidth(xw.dpy, xw.scr);
@@ -1907,44 +1997,36 @@ xinit(void) {
                        xw.fx = sw + xw.fx - xw.fw - 1;
                if(xw.fy < 0)
                        xw.fy = sh + xw.fy - xw.fh - 1;
                        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*BORDER + term.row * xw.ch;
                xw.w = 2*BORDER + term.col * xw.cw;
        } else {
                /* window - default size */
                xw.h = 2*BORDER + term.row * xw.ch;
                xw.w = 2*BORDER + term.col * xw.cw;
-               xw.fw = xw.w;
-               xw.fh = xw.h;
+               xw.fx = 0;
+               xw.fy = 0;
        }
 
        }
 
-       /* font */
-       initfonts(FONT, BOLDFONT);
-
-       /* XXX: Assuming same size for bold font */
-       xw.cw = dc.font.rbearing - dc.font.lbearing;
-       xw.ch = dc.font.ascent + dc.font.descent;
-
-       /* colors */
-       xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
-       xloadcols();
-
        attrs.background_pixel = dc.col[DefaultBG];
        attrs.border_pixel = dc.col[DefaultBG];
        attrs.bit_gravity = NorthWestGravity;
        attrs.event_mask = FocusChangeMask | KeyPressMask
                | ExposureMask | VisibilityChangeMask | StructureNotifyMask
        attrs.background_pixel = dc.col[DefaultBG];
        attrs.border_pixel = dc.col[DefaultBG];
        attrs.bit_gravity = NorthWestGravity;
        attrs.event_mask = FocusChangeMask | KeyPressMask
                | ExposureMask | VisibilityChangeMask | StructureNotifyMask
-               | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
-               | EnterWindowMask | LeaveWindowMask;
+               | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
        attrs.colormap = xw.cmap;
 
        parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
        xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
        attrs.colormap = xw.cmap;
 
        parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
        xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
-                       xw.fw, xw.fh, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
+                       xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
                        XDefaultVisual(xw.dpy, xw.scr),
                        CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
                        | CWColormap,
                        &attrs);
                        XDefaultVisual(xw.dpy, xw.scr),
                        CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
                        | CWColormap,
                        &attrs);
+       if(!XdbeQueryExtension(xw.dpy, &major, &minor))
+               die("Xdbe extension is not present\n");
        xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
 
        xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
 
-
        /* input methods */
        xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
        xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
        /* input methods */
        xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
        xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
@@ -1962,7 +2044,7 @@ xinit(void) {
 
        xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
 
 
        xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
 
-       XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
+       xresettitle();
        XMapWindow(xw.dpy, xw.win);
        xhints();
        XSync(xw.dpy, 0);
        XMapWindow(xw.dpy, xw.win);
        xhints();
        XSync(xw.dpy, 0);
@@ -1991,6 +2073,11 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                fontset = dc.bfont.set;
        }
 
                fontset = dc.bfont.set;
        }
 
+       if(base.mode & ATTR_ITALIC)
+               fontset = dc.ifont.set;
+       if(base.mode & (ATTR_ITALIC|ATTR_ITALIC))
+               fontset = dc.ibfont.set;
+
        XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
        XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
 
        XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
        XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
 
@@ -2010,14 +2097,6 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
                XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
 }
 
                XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
 }
 
-/* copy buffer pixmap to screen pixmap */
-void
-xcopy() {
-       XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
-       XdbeSwapBuffers(xw.dpy, swpinfo, 1);
-
-}
-
 void
 xdrawcursor(void) {
        static int oldx = 0;
 void
 xdrawcursor(void) {
        static int oldx = 0;
@@ -2038,8 +2117,6 @@ xdrawcursor(void) {
        } else
                xclear(oldx, oldy, oldx, oldy);
 
        } else
                xclear(oldx, oldy, oldx, oldy);
 
-       xcopy(oldx, oldy, 1, 1);
-
        /* draw the new one */
        if(!(term.c.state & CURSOR_HIDE)) {
                if(!(xw.state & WIN_FOCUSED))
        /* draw the new one */
        if(!(term.c.state & CURSOR_HIDE)) {
                if(!(xw.state & WIN_FOCUSED))
@@ -2052,8 +2129,11 @@ xdrawcursor(void) {
                xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
                oldx = term.c.x, oldy = term.c.y;
        }
                xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
                oldx = term.c.x, oldy = term.c.y;
        }
+}
 
 
-       xcopy(term.c.x, term.c.y, 1, 1);
+void
+xresettitle(void) {
+       XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
 }
 
 void
 }
 
 void
@@ -2061,14 +2141,16 @@ redraw(void) {
        struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
        tfulldirt();
        draw();
        struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
        tfulldirt();
        draw();
+       XSync(xw.dpy, False); /* necessary for a good tput flash */
        nanosleep(&tv, NULL);
 }
 
 void
 draw() {
        nanosleep(&tv, NULL);
 }
 
 void
 draw() {
+       XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
+
        drawregion(0, 0, term.col, term.row);
        drawregion(0, 0, term.col, term.row);
-       xcopy();
-       gettimeofday(&xw.lastdraw, NULL);
+       XdbeSwapBuffers(xw.dpy, swpinfo, 1);
 }
 
 void
 }
 
 void
@@ -2076,7 +2158,10 @@ drawregion(int x1, int y1, int x2, int y2) {
        int ic, ib, x, y, ox, sl;
        Glyph base, new;
        char buf[DRAW_BUF_SIZ];
        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);
 
 
+       if((sel.alt && !alt) || (!sel.alt && alt))
+               ena_sel = 0;
        if(!(xw.state & WIN_VISIBLE))
                return;
 
        if(!(xw.state & WIN_VISIBLE))
                return;
 
@@ -2089,7 +2174,7 @@ drawregion(int x1, int y1, int x2, int y2) {
                ic = ib = ox = 0;
                for(x = x1; x < x2; x++) {
                        new = term.line[y][x];
                ic = ib = ox = 0;
                for(x = x1; x < x2; x++) {
                        new = term.line[y][x];
-                       if(sel.bx != -1 && *(new.c) && selected(x, y))
+                       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)) {
                                new.mode ^= ATTR_REVERSE;
                        if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
                                                  ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
@@ -2120,7 +2205,6 @@ expose(XEvent *ev) {
                if(!e->count)
                        xw.state &= ~WIN_REDRAW;
        }
                if(!e->count)
                        xw.state &= ~WIN_REDRAW;
        }
-       xcopy();
 }
 
 void
 }
 
 void
@@ -2153,7 +2237,6 @@ focus(XEvent *ev) {
                xseturgency(0);
        } else
                xw.state &= ~WIN_FOCUSED;
                xseturgency(0);
        } else
                xw.state &= ~WIN_FOCUSED;
-       draw();
 }
 
 char*
 }
 
 char*
@@ -2222,14 +2305,13 @@ void
 cmessage(XEvent *e) {
        /* See xembed specs
           http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
 cmessage(XEvent *e) {
        /* See xembed specs
           http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
-       if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
-               if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
+       if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
+               if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
                        xw.state |= WIN_FOCUSED;
                        xseturgency(0);
                        xw.state |= WIN_FOCUSED;
                        xseturgency(0);
-               } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
+               } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
                        xw.state &= ~WIN_FOCUSED;
                }
                        xw.state &= ~WIN_FOCUSED;
                }
-               draw();
        }
 }
 
        }
 }
 
@@ -2246,47 +2328,46 @@ resize(XEvent *e) {
        row = (xw.h - 2*BORDER) / xw.ch;
        if(col == term.col && row == term.row)
                return;
        row = (xw.h - 2*BORDER) / xw.ch;
        if(col == term.col && row == term.row)
                return;
-       if(tresize(col, row))
-               draw();
-       ttyresize(col, row);
+       tresize(col, row);
        xresize(col, row);
        xresize(col, row);
-}
-
-bool
-last_draw_too_old(void) {
-       struct timeval now;
-       gettimeofday(&now, NULL);
-       return TIMEDIFF(now, xw.lastdraw) >= DRAW_TIMEOUT/1000;
+       ttyresize(col, row);
 }
 
 void
 run(void) {
        XEvent ev;
        fd_set rfd;
 }
 
 void
 run(void) {
        XEvent ev;
        fd_set rfd;
-       int xfd = XConnectionNumber(xw.dpy);
-       struct timeval timeout = {0};
-       bool stuff_to_print = 0;
+       int xfd = XConnectionNumber(xw.dpy), i;
+       struct timeval drawtimeout, *tv = NULL;
 
 
-       for(;;) {
+       for(i = 0;; i++) {
                FD_ZERO(&rfd);
                FD_SET(cmdfd, &rfd);
                FD_SET(xfd, &rfd);
                FD_ZERO(&rfd);
                FD_SET(cmdfd, &rfd);
                FD_SET(xfd, &rfd);
-               timeout.tv_sec  = 0;
-               timeout.tv_usec = SELECT_TIMEOUT;
-               if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) {
+               if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
                        if(errno == EINTR)
                                continue;
                        die("select failed: %s\n", SERRNO);
                }
                        if(errno == EINTR)
                                continue;
                        die("select failed: %s\n", SERRNO);
                }
-               if(FD_ISSET(cmdfd, &rfd)) {
+
+               /*
+                * Stop after a certain number of reads so the user does not
+                * feel like the system is stuttering.
+                */
+               if(i < 1000 && FD_ISSET(cmdfd, &rfd)) {
                        ttyread();
                        ttyread();
-                       stuff_to_print = 1;
-               }
 
 
-               if(stuff_to_print && last_draw_too_old()) {
-                       stuff_to_print = 0;
-                       draw();
+                       /*
+                        * Just wait a bit so it isn't disturbing the
+                        * user and the system is able to write something.
+                        */
+                       drawtimeout.tv_sec = 0;
+                       drawtimeout.tv_usec = 5;
+                       tv = &drawtimeout;
+                       continue;
                }
                }
+               i = 0;
+               tv = NULL;
 
                while(XPending(xw.dpy)) {
                        XNextEvent(xw.dpy, &ev);
 
                while(XPending(xw.dpy)) {
                        XNextEvent(xw.dpy, &ev);
@@ -2295,6 +2376,9 @@ run(void) {
                        if(handler[ev.type])
                                (handler[ev.type])(&ev);
                }
                        if(handler[ev.type])
                                (handler[ev.type])(&ev);
                }
+
+               draw();
+               XFlush(xw.dpy);
        }
 }
 
        }
 }
 
@@ -2304,6 +2388,7 @@ main(int argc, char *argv[]) {
        unsigned int wr, hr;
 
        xw.fw = xw.fh = xw.fx = xw.fy = 0;
        unsigned int wr, hr;
 
        xw.fw = xw.fh = xw.fx = xw.fy = 0;
+       xw.isfixed = False;
 
        for(i = 1; i < argc; i++) {
                switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
 
        for(i = 1; i < argc; i++) {
                switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
@@ -2317,7 +2402,7 @@ main(int argc, char *argv[]) {
                        if(++i < argc) opt_embed = argv[i];
                        break;
                case 'f':
                        if(++i < argc) opt_embed = argv[i];
                        break;
                case 'f':
-                       if (++i < argc) opt_io = argv[i];
+                       if(++i < argc) opt_io = argv[i];
                        break;
                case 'e':
                        /* eat every remaining arguments */
                        break;
                case 'e':
                        /* eat every remaining arguments */