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$NetBSD: patch-ad,v 1.2 2002/02/11 18:30:23 fredb Exp $
--- vt.c.orig Fri May 24 10:13:52 1996
+++ vt.c
@@ -748,6 +748,9 @@
register int line, i;
if (v->state == ESnormal && ch >= ' ' && ch < 256) {
+ if ( (v->attr & T_LINEDRAW) && ch >= 'a' && ch <= 'z')
+ ch -= 95;
+
if (v->hanging_cursor) {
v->x = 0;
movecursordown(v);
@@ -796,13 +799,38 @@
v->hanging_cursor = 0; /* XXX Is this right? */
return;
case 13:
+ /*
+ * This is a hack! Do what I mean: after setting GS0,
+ * activate GS0 for next line, but don't just activate
+ * GS0 for every new line.
+ */
+ if (v->gset0changed) {
+ if (v->gset0 == S_ASCII)
+ v->attr &= ~T_LINEDRAW;
+ else
+ v->attr |= T_LINEDRAW;
+ v->gset0changed = 0;
+ v->gset0mapped = 0;
+ }
v->x = 0; /* Carriage return (^M) */
v->hanging_cursor = 0;
return;
case 14:
- return; /* Alternate font (^N) */
+ if (v->gset1 == S_ASCII)
+ v->attr &= ~T_LINEDRAW;
+ else
+ v->attr |= T_LINEDRAW;
+ return; /* Lock Shift 1 (^N) */
+ v->gset0changed = 0;
+ v->gset0mapped = 0;
case 15:
- return; /* Normal font (^O) */
+ if (v->gset0 == S_ASCII)
+ v->attr &= ~T_LINEDRAW;
+ else
+ v->attr |= T_LINEDRAW;
+ v->gset0changed = 1; /* to clear map bit at EOL */
+ v->gset0mapped = 1;
+ return; /* Lock Shift 0 (^O) */
case 24: /* (^X) */
case 26:
v->state = ESnormal; /* (^Z) */
@@ -1070,36 +1098,38 @@
break;
case ESsetG0:
if (ch == '0') {
- /* Set graphics character set */
- } else
- if (ch == 'B') {
- /* Set normal character set */
- } else
- if (ch == 'U') {
- /* Set null character set */
- } else
- if (ch == 'K') {
- /* Set user-defined character
- * set */
- }
- /* If currently G0, then make active set */
+ v->gset0 = S_LINEDRAW;
+ if (v->gset0mapped)
+ /*
+ * Activate immediately. We'll still mark it
+ * changed, so the mapped bit will get cleared
+ * for the next line.
+ */
+ v->attr |= T_LINEDRAW;
+ v->gset0changed = 1;
+ } else if (ch == 'B') {
+ v->gset0 = S_ASCII;
+ if (v->gset0mapped)
+ /*
+ * Activate immediately. We'll still mark it
+ * changed, so the mapped bit will get cleared
+ * for the next line.
+ */
+ v->attr &= ~T_LINEDRAW;
+ v->gset0changed = 1;
+ }
v->state = ESnormal;
break;
+ /*
+ * Not very useful. Typically, G1 would be changed to one
+ * of the other character sets, which we don't support.
+ */
case ESsetG1:
if (ch == '0') {
- /* Set graphics character set */
- } else
- if (ch == 'B') {
- /* Set normal character set */
- } else
- if (ch == 'U') {
- /* Set null character set */
- } else
- if (ch == 'K') {
- /* Set user-defined character
- * set */
- }
- /* If currently G1, then make active set */
+ v->gset1 = S_LINEDRAW;
+ } else if (ch == 'B') {
+ v->gset1 = S_ASCII;
+ }
v->state = ESnormal;
break;
default:
@@ -1187,6 +1217,10 @@
v->tab_stop[3] = 0x01010101;
v->tab_stop[4] = 0x01010101;
v->copying = 0;
+ v->gset0 = S_ASCII;
+ v->gset0changed = 0;
+ v->gset0mapped = 0;
+ v->gset1 = S_LINEDRAW;
}
}
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