graphic charset and a few more escapes.

[st.git] / st.c

diff --git a/st.c b/st.c
index a84f0e0..ca5fb5d 100644 (file)
--- a/st.c
+++ b/st.c
@@ -38,11 +38,11 @@
 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
 
 /* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
 
 /* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */

-enum { ATnone=0 , ATreverse=1 , ATunderline=2, ATbold=4 };
-enum { CSup, CSdown, CSright, CSleft, CShide, CSdraw, CSwrap, CSsave, CSload };
+enum { ATnone=0 , ATreverse=1 , ATunderline=2, ATbold=4, ATgfx=8 };
+enum { CSup, CSdown, CSright, CSleft, CShide, CSdraw, CSsave, CSload };

 enum { CRset=1, CRupdate=2 };
 enum { CRset=1, CRupdate=2 };

-enum { TMwrap=1, TMinsert=2, TMtitle=4 };
-enum { ESCin = 1, ESCcsi = 2, ESCosc = 4, ESCtitle = 8 };
+enum { TMwrap=1, TMinsert=2 };
+enum { ESCin=1, ESCcsi=2, ESCosc=4, ESCtitle=8, ESCcharset=16 };

 enum { SCupdate, SCredraw };
 
 typedef int Color;
 enum { SCupdate, SCredraw };
 
 typedef int Color;


@@ -68,7 +68,7 @@ typedef struct {
 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
 typedef struct {
        char buf[ESCSIZ]; /* raw string */
 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
 typedef struct {
        char buf[ESCSIZ]; /* raw string */

-       int len;            /* raw string length */
+       int len;          /* raw string length */

        char priv;
        int arg[ESCARGSIZ];
        int narg;           /* nb of args */
        char priv;
        int arg[ESCARGSIZ];
        int narg;           /* nb of args */


@@ -389,7 +389,7 @@ tmoveto(int x, int y) {
 void
 tcursor(int dir) {
        int xf = term.c.x, yf = term.c.y;
 void
 tcursor(int dir) {
        int xf = term.c.x, yf = term.c.y;

-
+       

        switch(dir) {
        case CSup:
                yf--;
        switch(dir) {
        case CSup:
                yf--;


@@ -399,7 +399,7 @@ tcursor(int dir) {
                break;
        case CSleft:
                xf--;
                break;
        case CSleft:
                xf--;

-               if(xf < 0) {
+               if(term.mode & TMwrap && xf < 0) {

                        xf = term.col-1, yf--;
                        if(yf < term.top)
                                yf = term.top, xf = 0;
                        xf = term.col-1, yf--;
                        if(yf < term.top)
                                yf = term.top, xf = 0;


@@ -407,7 +407,7 @@ tcursor(int dir) {
                break;
        case CSright:
                xf++;
                break;
        case CSright:
                xf++;

-               if(xf >= term.col) {
+               if(term.mode & TMwrap && xf >= term.col) {

                        xf = 0, yf++;
                        if(yf > term.bot)
                                yf = term.bot, tscroll();
                        xf = 0, yf++;
                        if(yf > term.bot)
                                yf = term.bot, tscroll();


@@ -416,7 +416,7 @@ tcursor(int dir) {
        }
        tmoveto(xf, yf);
 }
        }
        tmoveto(xf, yf);
 }

-
+       

 void
 tsetchar(char c) {
        term.line[term.c.y][term.c.x] = term.c.attr;
 void
 tsetchar(char c) {
        term.line[term.c.y][term.c.x] = term.c.attr;


@@ -535,7 +535,7 @@ 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:

-                       memset(&term.c.attr, 0, sizeof(term.c.attr));
+                       term.c.attr.mode &= ~(ATreverse | ATunderline | ATbold);

                        term.c.attr.fg = DefaultFG;
                        term.c.attr.bg = DefaultBG;
                        break;
                        term.c.attr.fg = DefaultFG;
                        term.c.attr.bg = DefaultBG;
                        break;


@@ -593,7 +593,10 @@ tsetscroll(int t, int b) {
 
 void
 csihandle(void) {
 
 void
 csihandle(void) {

+       if(escseq.priv)
+               csidump();

        switch(escseq.mode) {
        switch(escseq.mode) {

+       unknown:

        default:
                fprintf(stderr, "erresc: unknown sequence\n");
                csidump();
        default:
                fprintf(stderr, "erresc: unknown sequence\n");
                csidump();


@@ -672,8 +675,16 @@ csihandle(void) {
                tinsertblankline(escseq.arg[0]);
                break;
        case 'l':
                tinsertblankline(escseq.arg[0]);
                break;
        case 'l':

-               if(escseq.priv && escseq.arg[0] == 25)
+               if(escseq.priv) {
+                       switch(escseq.arg[0]) {
+                       case 7:
+                               term.mode &= ~TMwrap;
+                               break;
+                       case 25:

                                term.c.hidden = 1;
                                term.c.hidden = 1;

+                               break;
+                       }
+               }

                break;
        case 'M': /* Delete <n> lines */
                DEFAULT(escseq.arg[0], 1);
                break;
        case 'M': /* Delete <n> lines */
                DEFAULT(escseq.arg[0], 1);


@@ -689,15 +700,25 @@ csihandle(void) {
                tmoveto(term.c.x, escseq.arg[0]-1);
                break;
        case 'h': /* Set terminal mode */
                tmoveto(term.c.x, escseq.arg[0]-1);
                break;
        case 'h': /* Set terminal mode */

-               if(escseq.priv && escseq.arg[0] == 25)
-                       term.c.hidden = 0;
+               if(escseq.priv)
+                       switch(escseq.arg[0]) {
+                       case 7:
+                               term.mode |= TMwrap;
+                               break;
+                       case 25:
+                               term.c.hidden = 0;
+                               break;
+                       case 1034:
+                               /* XXX: Interpret "meta" key, sets eighth bit. */
+                               break;
+                       }

                break;
        case 'm': /* Terminal attribute (color) */
                tsetattr(escseq.arg, escseq.narg);
                break;
        case 'r':
                if(escseq.priv)
                break;
        case 'm': /* Terminal attribute (color) */
                tsetattr(escseq.arg, escseq.narg);
                break;
        case 'r':
                if(escseq.priv)

-                       ;
+                       goto unknown;

                else {
                        DEFAULT(escseq.arg[0], 1);
                        DEFAULT(escseq.arg[1], term.row);
                else {
                        DEFAULT(escseq.arg[0], 1);
                        DEFAULT(escseq.arg[1], term.row);


@@ -766,6 +787,17 @@ tputc(char c) {
                        } else {
                                term.title[term.titlelen++] = c;
                        }
                        } else {
                                term.title[term.titlelen++] = c;
                        }

+               } else if(term.esc & ESCcharset) {
+                       printf("ESC ( %c\n", c);
+                       switch(c) {
+                       case '0': /* Line drawing crap */
+                               term.c.attr.mode |= ATgfx;
+                               break;
+                       case 'B': /* Back to regular text */
+                               term.c.attr.mode &= ~ATgfx;
+                               break;
+                       }
+                       term.esc = 0;

                } else {                
                        switch(c) {
                        case '[':
                } else {                
                        switch(c) {
                        case '[':


@@ -774,6 +806,23 @@ tputc(char c) {
                        case ']':
                                term.esc |= ESCosc;
                                break;
                        case ']':
                                term.esc |= ESCosc;
                                break;

+                       case '(':
+                               term.esc |= ESCcharset;
+                               break;
+                       case 'A':
+                               tmoveto(term.c.x, term.c.y-1);
+                               break;
+                       case 'B':
+                               tmoveto(term.c.x, term.c.y+1);
+                               break;
+                       case 'C':
+                               tmoveto(term.c.x+1, term.c.y);
+                               break;
+                       case 'D':
+                               tmoveto(term.c.x-1, term.c.y);
+                               break;
+                       default:
+                               fprintf(stderr, "erresc: unknown sequence ESC %02X '%c'\n", c, isprint(c)?c:'.');

                        }
                }
        } else {
                        }
                }
        } else {


@@ -931,6 +980,8 @@ void
 xdraws (char *s, Glyph base, int x, int y, int len) {
        unsigned long xfg, xbg;
        int winx = x*xw.cw, winy = y*xw.ch + dc.font->ascent, width = len*xw.cw;
 xdraws (char *s, Glyph base, int x, int y, int len) {
        unsigned long xfg, xbg;
        int winx = x*xw.cw, winy = y*xw.ch + dc.font->ascent, width = len*xw.cw;

+       int i;
+

        if(base.mode & ATreverse)
                xfg = dc.col[base.bg], xbg = dc.col[base.fg];
        else
        if(base.mode & ATreverse)
                xfg = dc.col[base.bg], xbg = dc.col[base.fg];
        else


@@ -938,6 +989,13 @@ xdraws (char *s, Glyph base, int x, int y, int len) {
 
        XSetBackground(xw.dis, dc.gc, xbg);
        XSetForeground(xw.dis, dc.gc, xfg);
 
        XSetBackground(xw.dis, dc.gc, xbg);
        XSetForeground(xw.dis, dc.gc, xfg);

+       
+       if(base.mode & ATgfx) {
+          
+               for(i = 0; i < len; i++)
+                       s[i] = gfx[s[i]];
+       }
+       

        XDrawImageString(xw.dis, xw.win, dc.gc, winx, winy, s, len);
        
        if(base.mode & ATunderline)
        XDrawImageString(xw.dis, xw.win, dc.gc, winx, winy, s, len);
        
        if(base.mode & ATunderline)


@@ -1006,7 +1064,8 @@ draw(int redraw_all) {
                }
                xdraws(buf, base, ox, y, i);
        }
                }
                xdraws(buf, base, ox, y, i);
        }

-       xcursor(CSdraw);
+       if(!term.c.hidden)
+               xcursor(CSdraw);

 }
 
 void
 }
 
 void


@@ -1014,7 +1073,7 @@ expose(XEvent *ev) {
        draw(SCredraw);
 }
 
        draw(SCredraw);
 }
 

-char *
+char*

 kmap(KeySym k) {
        int i;
        for(i = 0; i < LEN(key); i++)
 kmap(KeySym k) {
        int i;
        for(i = 0; i < LEN(key); i++)