If there is really someone without SHELL set, help him/her.

[st.git] / st.c

diff --git a/st.c b/st.c
index 8c8efaf..43f5bc2 100644 (file)
--- a/st.c
+++ b/st.c
@@ -123,6 +123,7 @@ enum escape_state {
        ESC_STR = 4, /* DSC, OSC, PM, APC */
        ESC_ALTCHARSET = 8,
        ESC_STR_END    = 16, /* a final string was encountered */
        ESC_STR = 4, /* DSC, OSC, PM, APC */
        ESC_ALTCHARSET = 8,
        ESC_STR_END    = 16, /* a final string was encountered */

+       ESC_TEST       = 32, /* Enter in test mode */

 };
 
 enum window_state {
 };
 
 enum window_state {


@@ -289,7 +290,7 @@ static int tresize(int, int);
 static void tscrollup(int, int);
 static void tscrolldown(int, int);
 static void tsetattr(int*, int);
 static void tscrollup(int, int);
 static void tscrolldown(int, int);
 static void tsetattr(int*, int);

-static void tsetchar(char*);
+static void tsetchar(char *, Glyph *, int, int);

 static void tsetscroll(int, int);
 static void tswapscreen(void);
 static void tsetdirt(int, int);
 static void tsetscroll(int, int);
 static void tswapscreen(void);
 static void tsetdirt(int, int);


@@ -864,6 +865,9 @@ execsh(void) {
        char **args;
        char *envshell = getenv("SHELL");
 
        char **args;
        char *envshell = getenv("SHELL");
 

+       if (envshell == NULL)
+               envshell ="/bin/sh";
+

        unsetenv("COLUMNS");
        unsetenv("LINES");
        unsetenv("TERMCAP");
        unsetenv("COLUMNS");
        unsetenv("LINES");
        unsetenv("TERMCAP");


@@ -1182,8 +1186,8 @@ tmoveto(int x, int y) {
 }
 
 void
 }
 
 void

-tsetchar(char *c) {
-       char *vt100_0[62] = { /* 0x41 - 0x7e */
+tsetchar(char *c, Glyph *attr, int x, int y) {
+       static char *vt100_0[62] = { /* 0x41 - 0x7e */

                "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
                0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
                0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
                "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
                0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
                0, 0, 0, 0, 0, 0, 0, 0, /* P - W */


@@ -1197,17 +1201,17 @@ tsetchar(char *c) {
        /*
         * The table is proudly stolen from rxvt.
         */
        /*
         * The table is proudly stolen from rxvt.
         */

-       if(term.c.attr.mode & ATTR_GFX) {
+       if(attr->mode & ATTR_GFX) {

                if(c[0] >= 0x41 && c[0] <= 0x7e
                                && vt100_0[c[0] - 0x41]) {
                        c = vt100_0[c[0] - 0x41];
                }
        }
 
                if(c[0] >= 0x41 && c[0] <= 0x7e
                                && vt100_0[c[0] - 0x41]) {
                        c = vt100_0[c[0] - 0x41];
                }
        }
 

-       term.dirty[term.c.y] = 1;
-       term.line[term.c.y][term.c.x] = term.c.attr;
-       memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
-       term.line[term.c.y][term.c.x].state |= GLYPH_SET;
+       term.dirty[y] = 1;
+       term.line[y][x] = *attr;
+       memcpy(term.line[y][x].c, c, UTF_SIZ);
+       term.line[y][x].state |= GLYPH_SET;

 }
 
 void
 }
 
 void


@@ -1893,11 +1897,25 @@ tputc(char *c, int len) {
                                fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
                        }
                        term.esc = 0;
                                fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
                        }
                        term.esc = 0;

+               } else if(term.esc & ESC_TEST) {
+                       if(ascii == '8') { /* DEC screen alignment test. */
+                               char E[UTF_SIZ] = "E";
+                               int x, y;
+
+                               for(x = 0; x < term.col; ++x) {
+                                       for(y = 0; y < term.row; ++y)
+                                               tsetchar(E, &term.c.attr, x, y);
+                               }
+                       }
+                       term.esc = 0;

                } else {
                        switch(ascii) {
                        case '[':
                                term.esc |= ESC_CSI;
                                break;
                } else {
                        switch(ascii) {
                        case '[':
                                term.esc |= ESC_CSI;
                                break;

+                       case '#':
+                               term.esc |= ESC_TEST;
+                               break;

                        case 'P': /* DCS -- Device Control String */
                        case '_': /* APC -- Application Program Command */
                        case '^': /* PM -- Privacy Message */
                        case 'P': /* DCS -- Device Control String */
                        case '_': /* APC -- Application Program Command */
                        case '^': /* PM -- Privacy Message */


@@ -1988,7 +2006,7 @@ 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 */

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

        if(term.c.x+1 < term.col)
                tmoveto(term.c.x+1, term.c.y);
        else
        if(term.c.x+1 < term.col)
                tmoveto(term.c.x+1, term.c.y);
        else