Remove unused fields in cursor_movement

[st.git] / st.c

diff --git a/st.c b/st.c
index c043e3f..db21901 100644 (file)
--- a/st.c
+++ b/st.c
@@ -59,13 +59,12 @@
 #define STR_ARG_SIZ   16
 #define DRAW_BUF_SIZ  20*1024
 #define UTF_SIZ       4
 #define STR_ARG_SIZ   16
 #define DRAW_BUF_SIZ  20*1024
 #define UTF_SIZ       4

-#define XK_NO_MOD     UINT_MAX
-#define XK_ANY_MOD    0
+#define XK_ANY_MOD    UINT_MAX
+#define XK_NO_MOD     0

 
 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
 
 /* macros */
 
 #define REDRAW_TIMEOUT (80*1000) /* 80 ms */
 
 /* macros */

-#define CLEANMASK(mask) (mask & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))

 #define SERRNO strerror(errno)
 #define MIN(a, b)  ((a) < (b) ? (a) : (b))
 #define MAX(a, b)  ((a) < (b) ? (b) : (a))
 #define SERRNO strerror(errno)
 #define MIN(a, b)  ((a) < (b) ? (a) : (b))
 #define MAX(a, b)  ((a) < (b) ? (b) : (a))


@@ -90,10 +89,6 @@ enum glyph_attribute {
 };
 
 enum cursor_movement {
 };
 
 enum cursor_movement {

-       CURSOR_UP,
-       CURSOR_DOWN,
-       CURSOR_LEFT,
-       CURSOR_RIGHT,

        CURSOR_SAVE,
        CURSOR_LOAD
 };
        CURSOR_SAVE,
        CURSOR_LOAD
 };


@@ -110,17 +105,19 @@ enum glyph_state {
 };
 
 enum term_mode {
 };
 
 enum term_mode {

-       MODE_WRAP       = 1,
+       MODE_WRAP        = 1,

        MODE_INSERT      = 2,
        MODE_APPKEYPAD   = 4,
        MODE_ALTSCREEN   = 8,
        MODE_INSERT      = 2,
        MODE_APPKEYPAD   = 4,
        MODE_ALTSCREEN   = 8,

-       MODE_CRLF       = 16,
+       MODE_CRLF        = 16,

        MODE_MOUSEBTN    = 32,
        MODE_MOUSEMOTION = 64,
        MODE_MOUSE       = 32|64,
        MODE_REVERSE     = 128,
        MODE_KBDLOCK     = 256,
        MODE_MOUSEBTN    = 32,
        MODE_MOUSEMOTION = 64,
        MODE_MOUSE       = 32|64,
        MODE_REVERSE     = 128,
        MODE_KBDLOCK     = 256,

-       MODE_HIDE      = 512
+       MODE_HIDE        = 512,
+       MODE_ECHO        = 1024,
+       MODE_APPCURSOR   = 2048

 };
 
 enum escape_state {
 };
 
 enum escape_state {


@@ -226,6 +223,10 @@ typedef struct {
        KeySym k;
        uint mask;
        char s[ESC_BUF_SIZ];
        KeySym k;
        uint mask;
        char s[ESC_BUF_SIZ];

+       /* three valued logic variables: 0 indifferent, 1 on, -1 off */
+       signed char appkey;             /* application keypad */
+       signed char appcursor;          /* application cursor */
+       signed char crlf;               /* crlf mode          */

 } Key;
 
 /* TODO: use better name for vars... */
 } Key;
 
 /* TODO: use better name for vars... */


@@ -259,6 +260,7 @@ typedef struct {
 
 /* function definitions used in config.h */
 static void xzoom(const Arg *);
 
 /* function definitions used in config.h */
 static void xzoom(const Arg *);

+static void selpaste(const Arg *);

 
 /* Config.h for applying patches and the configuration. */
 #include "config.h"
 
 /* Config.h for applying patches and the configuration. */
 #include "config.h"


@@ -277,7 +279,6 @@ typedef struct {
 /* Drawing Context */
 typedef struct {
        Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
 /* Drawing Context */
 typedef struct {
        Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];

-       GC gc;

        Font font, bfont, ifont, ibfont;
 } DC;
 
        Font font, bfont, ifont, ibfont;
 } DC;
 


@@ -321,7 +322,9 @@ static void tswapscreen(void);
 static void tsetdirt(int, int);
 static void tsetmode(bool, bool, int *, int);
 static void tfulldirt(void);
 static void tsetdirt(int, int);
 static void tsetmode(bool, bool, int *, int);
 static void tfulldirt(void);

+static void techo(char *, int);

 
 

+static inline bool match(uint, uint);

 static void ttynew(void);
 static void ttyread(void);
 static void ttyresize(void);
 static void ttynew(void);
 static void ttyread(void);
 static void ttyresize(void);


@@ -358,7 +361,6 @@ static void selrequest(XEvent *);
 static void selinit(void);
 static inline bool selected(int, int);
 static void selcopy(void);
 static void selinit(void);
 static inline bool selected(int, int);
 static void selcopy(void);

-static void selpaste(void);

 static void selscroll(int, int);
 
 static int utf8decode(char *, long *);
 static void selscroll(int, int);
 
 static int utf8decode(char *, long *);


@@ -748,7 +750,7 @@ selnotify(XEvent *e) {
 }
 
 void
 }
 
 void

-selpaste(void) {
+selpaste(const Arg *dummy) {

        XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
                        xw.win, CurrentTime);
 }
        XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
                        xw.win, CurrentTime);
 }


@@ -819,7 +821,7 @@ brelease(XEvent *e) {
        }
 
        if(e->xbutton.button == Button2) {
        }
 
        if(e->xbutton.button == Button2) {

-               selpaste();
+               selpaste(NULL);

        } else if(e->xbutton.button == Button1) {
                sel.mode = 0;
                getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
        } else if(e->xbutton.button == Button1) {
                sel.mode = 0;
                getbuttoninfo(e, NULL, &sel.ex, &sel.ey);


@@ -1470,7 +1472,7 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                        switch(*args) {
                                break;
                        case 1: /* DECCKM -- Cursor key */
                        switch(*args) {
                                break;
                        case 1: /* DECCKM -- Cursor key */

-                               MODBIT(term.mode, set, MODE_APPKEYPAD);
+                               MODBIT(term.mode, set, MODE_APPCURSOR);

                                break;
                        case 5: /* DECSCNM -- Reverse video */
                                mode = term.mode;
                                break;
                        case 5: /* DECSCNM -- Reverse video */
                                mode = term.mode;


@@ -1535,7 +1537,8 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                        case 4:  /* IRM -- Insertion-replacement */
                                MODBIT(term.mode, set, MODE_INSERT);
                                break;
                        case 4:  /* IRM -- Insertion-replacement */
                                MODBIT(term.mode, set, MODE_INSERT);
                                break;

-                       case 12: /* XXX: SRM -- Send/Receive */
+                       case 12: /* SRM -- Send/Receive */
+                               MODBIT(term.mode, !set, MODE_ECHO);

                                break;
                        case 20: /* LNM -- Linefeed/new line */
                                MODBIT(term.mode, set, MODE_CRLF);
                                break;
                        case 20: /* LNM -- Linefeed/new line */
                                MODBIT(term.mode, set, MODE_CRLF);


@@ -1849,6 +1852,28 @@ tputtab(bool forward) {
        tmoveto(x, term.c.y);
 }
 
        tmoveto(x, term.c.y);
 }
 

+void
+techo(char *buf, int len) {
+       for(; len > 0; buf++, len--) {
+               char c = *buf;
+
+               if(c == '\033') {               /* escape */
+                       tputc("^", 1);
+                       tputc("[", 1);
+               } else if (c < '\x20') {        /* control code */
+                       if(c != '\n' && c != '\r' && c != '\t') {
+                               c |= '\x40';
+                               tputc("^", 1);
+                       }
+                       tputc(&c, 1);
+               } else {
+                       break;
+               }
+       }
+       if (len)
+               tputc(buf, len);
+}
+

 void
 tputc(char *c, int len) {
        uchar ascii = *c;
 void
 tputc(char *c, int len) {
        uchar ascii = *c;


@@ -2071,11 +2096,19 @@ tputc(char *c, int len) {
                sel.bx = -1;
        if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
                tnewline(1); /* always go to first col */
                sel.bx = -1;
        if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
                tnewline(1); /* always go to first col */

+
+       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));
+       }
+

        tsetchar(c, &term.c.attr, term.c.x, term.c.y);
        tsetchar(c, &term.c.attr, term.c.x, term.c.y);

-       if(term.c.x+1 < term.col)
+       if(term.c.x+1 < term.col) {

                tmoveto(term.c.x+1, term.c.y);
                tmoveto(term.c.x+1, term.c.y);

-       else
+       } else {

                term.c.state |= CURSOR_WRAPNEXT;
                term.c.state |= CURSOR_WRAPNEXT;

+       }

 }
 
 int
 }
 
 int


@@ -2398,8 +2431,6 @@ xinit(void) {
        xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
                                           | XIMStatusNothing, XNClientWindow, xw.win,
                                           XNFocusWindow, xw.win, NULL);
        xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
                                           | XIMStatusNothing, XNClientWindow, xw.win,
                                           XNFocusWindow, xw.win, NULL);

-       /* gc */
-       dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);

 
        /* white cursor, black outline */
        cursor = XCreateFontCursor(xw.dpy, XC_xterm);
 
        /* white cursor, black outline */
        cursor = XCreateFontCursor(xw.dpy, XC_xterm);


@@ -2661,20 +2692,60 @@ focus(XEvent *ev) {
        }
 }
 
        }
 }
 

+inline bool
+match(uint mask, uint state) {
+       if(mask == XK_NO_MOD && state)
+               return false;
+       if(mask != XK_ANY_MOD && mask != XK_NO_MOD && !state)
+               return false;
+       if((state & mask) != state)
+               return false;
+       return true;
+}
+

 char*
 kmap(KeySym k, uint state) {
 char*
 kmap(KeySym k, uint state) {

-       int i;

        uint mask;
        uint mask;

+       Key *kp;
+       int i;

 
 

-       state &= ~Mod2Mask;
-       for(i = 0; i < LEN(key); i++) {
-               mask = key[i].mask;
+       /* Check for mapped keys out of X11 function keys. */
+       for(i = 0; i < LEN(mappedkeys); i++) {
+               if(mappedkeys[i] == k)
+                       break;
+       }
+       if(i == LEN(mappedkeys)) {
+               if((k & 0xFFFF) < 0xFF00)
+                       return NULL;
+       }
+
+       for(kp = key; kp < key + LEN(key); kp++) {
+               mask = kp->mask;
+
+               if(kp->k != k)
+                       continue;
+
+               if(!match(mask, state))
+                       continue;

 
 

-               if(key[i].k == k && ((state & mask) == mask
-                               || (mask == XK_NO_MOD && !state))) {
-                       return (char*)key[i].s;
+               if((kp->appkey < 0 && IS_SET(MODE_APPKEYPAD)) ||
+                               (kp->appkey > 0 && !IS_SET(MODE_APPKEYPAD))) {
+                       continue;
+               }
+
+               if((kp->appcursor < 0 && IS_SET(MODE_APPCURSOR)) ||
+                               (kp->appcursor > 0 && !IS_SET(MODE_APPCURSOR))) {
+                       continue;
+               }
+
+               if((kp->crlf < 0 && IS_SET(MODE_CRLF)) ||
+                               (kp->crlf > 0 && !IS_SET(MODE_CRLF))) {
+                       continue;

                }
                }

+
+               return kp->s;

        }
        }

+

        return NULL;
 }
 
        return NULL;
 }
 


@@ -2682,69 +2753,46 @@ void
 kpress(XEvent *ev) {
        XKeyEvent *e = &ev->xkey;
        KeySym ksym;
 kpress(XEvent *ev) {
        XKeyEvent *e = &ev->xkey;
        KeySym ksym;

-       char buf[32], *customkey;
-       int len, meta, shift, i;
+       char xstr[31], buf[32], *customkey, *cp = buf;
+       int len;

        Status status;
        Status status;

+       Shortcut *bp;

 
        if (IS_SET(MODE_KBDLOCK))
                return;
 
 
        if (IS_SET(MODE_KBDLOCK))
                return;
 

-       meta = e->state & Mod1Mask;
-       shift = e->state & ShiftMask;
-       len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
-
+       len = XmbLookupString(xw.xic, e, xstr, sizeof(xstr), &ksym, &status);
+       e->state &= ~Mod2Mask;

        /* 1. shortcuts */
        /* 1. shortcuts */

-       for(i = 0; i < LEN(shortcuts); i++) {
-               if((ksym == shortcuts[i].keysym)
-                               && (CLEANMASK(shortcuts[i].mod) == \
-                                       CLEANMASK(e->state))
-                               && shortcuts[i].func) {
-                       shortcuts[i].func(&(shortcuts[i].arg));
+       for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
+               if(ksym == bp->keysym && match(bp->mod, e->state)) {
+                       bp->func(&(bp->arg));
+                       return;

                }
        }
 
        /* 2. custom keys from config.h */
        if((customkey = kmap(ksym, e->state))) {
                }
        }
 
        /* 2. custom keys from config.h */
        if((customkey = kmap(ksym, e->state))) {

-               ttywrite(customkey, strlen(customkey));
+               len = strlen(customkey);
+               memcpy(buf, customkey, len);

        /* 2. hardcoded (overrides X lookup) */
        } else {
        /* 2. hardcoded (overrides X lookup) */
        } else {

-               switch(ksym) {
-               case XK_Up:
-               case XK_Down:
-               case XK_Left:
-               case XK_Right:
-                       /* XXX: shift up/down doesn't work */
-                       sprintf(buf, "\033%c%c",
-                               IS_SET(MODE_APPKEYPAD) ? 'O' : '[',
-                               (shift ? "dacb":"DACB")[ksym - XK_Left]);
-                       ttywrite(buf, 3);
-                       break;
-               case XK_Insert:
-                       if(shift)
-                               selpaste();
-                       break;
-               case XK_Return:
-                       if(meta)
-                               ttywrite("\033", 1);
+               if(len == 0)
+                       return;

 
 

-                       if(IS_SET(MODE_CRLF)) {
-                               ttywrite("\r\n", 2);
-                       } else {
-                               ttywrite("\r", 1);
-                       }
-                       break;
-                       /* 3. X lookup  */
-               default:
-                       if(len > 0) {
-                               if(meta && len == 1)
-                                       ttywrite("\033", 1);
-                               ttywrite(buf, len);
-                       }
-                       break;
-               }
+               if (len == 1 && e->state & Mod1Mask)
+                       *cp++ = '\033';
+
+               memcpy(cp, xstr, len);
+               len = cp - buf + len;

        }
        }

+
+       ttywrite(buf, len);
+       if(IS_SET(MODE_ECHO))
+               techo(buf, len);

 }
 
 }
 

+

 void
 cmessage(XEvent *e) {
        /* See xembed specs
 void
 cmessage(XEvent *e) {
        /* See xembed specs


@@ -2853,7 +2901,7 @@ main(int argc, char *argv[]) {
                                opt_class = argv[i];
                        break;
                case 'e':
                                opt_class = argv[i];
                        break;
                case 'e':

-                       /* eat every remaining arguments */
+                       /* eat all remaining arguments */

                        if(++i < argc)
                                opt_cmd = &argv[i];
                        goto run;
                        if(++i < argc)
                                opt_cmd = &argv[i];
                        goto run;


@@ -2908,6 +2956,7 @@ run:
        ttynew();
        selinit();
        run();
        ttynew();
        selinit();
        run();

+

        return 0;
 }
 
        return 0;
 }