all repos — st @ 9e813947cf4631c0ca8e5f73ebfb269ef2f8252b

st (suckless terminal) config 

Add DEC alignment test

This sequence was used by DEC personal in to for verifying the screen adjust
of terminals. It is the unique test sequence implemented by all the
emulators, and I think it is because they want be conforms with vttest which
uses this sequence in some tests.
---
 st.c |   31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)
Roberto E. Vargas Caballero k0ga@shike2.com
commit

9e813947cf4631c0ca8e5f73ebfb269ef2f8252b

parent

b7a7f171effb301ce8dbce07c1c77a6b06ef980f

1 files changed, 23 insertions(+), 8 deletions(-)

jump to
M st.c → st.c 
@@ -123,6 +123,7 @@ ESC_CSI	= 2,
 	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 {

@@ -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 tsetchar(char*);
+static void tsetchar(char *, Glyph *, int, int);
 static void tsetscroll(int, int);
 static void tswapscreen(void);
 static void tsetdirt(int, int);

@@ -1182,7 +1183,7 @@ term.c.y = y;
 }
 
 void
-tsetchar(char *c) {
+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 */

@@ -1197,17 +1198,17 @@ 
 	/*
 	 * 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];
 		}
 	}
 
-	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

@@ -1893,10 +1894,24 @@ default:
 				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;
+			case '#':
+				term.esc |= ESC_TEST;
 				break;
 			case 'P': /* DCS -- Device Control String */
 			case '_': /* APC -- Application Program Command */

@@ -1988,7 +2003,7 @@ if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
 		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