[hackers] [st] Add DEC alignment test || "Roberto E. Vargas Caballero"

From: <hg_AT_suckless.org>
Date: Sun, 7 Oct 2012 11:11:51 +0200 (CEST)

changeset: 363:a55a5664ceea
tag: tip
user: "Roberto E. Vargas Caballero" <k0ga_AT_shike2.com>
date: Sun Oct 07 11:06:17 2012 +0200
files: st.c
description:
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(-)
diff -r 04aba539bee9 -r a55a5664ceea st.c
--- a/st.c	Sun Oct 07 11:06:08 2012 +0200
+++ b/st.c	Sun Oct 07 11:06:17 2012 +0200
_AT_@ -123,6 +123,7 @@
 	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 {
_AT_@ -289,7 +290,7 @@
 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);
_AT_@ -1182,7 +1183,7 @@
 }
 
 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 */
_AT_@ -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
_AT_@ -1893,11 +1894,25 @@
 				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 */
 			case '^': /* PM -- Privacy Message */
_AT_@ -1988,7 +2003,7 @@
 		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

Received on Sun Oct 07 2012 - 11:11:51 CEST