X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=st.c;h=b9f66e71163f0707bb477f9fa5346f5dad27683d;hb=HEAD;hp=34c27adf3f755bd60cc6b45f1c34af8bb48c98bb;hpb=7e8050cc621f27002eaf1be8114dee2497beff91;p=st.git

diff --git a/st.c b/st.c
index 34c27ad..db0fee4 100644
--- a/st.c
+++ b/st.c
@@ -4,11 +4,12 @@
 #include <fcntl.h>
 #include <limits.h>
 #include <pwd.h>
+#include <signal.h>
 #include <stdarg.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <signal.h>
 #include <sys/ioctl.h>
 #include <sys/select.h>
 #include <sys/types.h>
@@ -339,10 +340,31 @@ utf8encodebyte(Rune u, size_t i)
 	return utfbyte[i] | (u & ~utfmask[i]);
 }
 
+// ./list-emojis <libgrapheme/data/emoji-data.txt >emojis.c.in
+#include "emojis.c.in"
+
+static int
+uint32comparator(const void *a, const void *b)
+{
+    return *(uint32_t *)a - *(uint32_t *)b;
+}
+
+int
+isEmoji(const Rune u)
+{
+    const uint32_t want = (uint32_t)u;
+    return bsearch(
+        &want,
+        emojis,
+        (sizeof emojis)/sizeof(uint32_t),
+        sizeof(uint32_t),
+        uint32comparator) != NULL;
+}
+
 size_t
 utf8validate(Rune *u, size_t i)
 {
-	if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
+	if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF) || isEmoji(*u))
 		*u = UTF_INVALID;
 	for (i = 1; *u > utfmax[i]; ++i)
 		;
@@ -1097,7 +1119,7 @@ tscrollup(int orig, int n)
 void
 selscroll(int orig, int n)
 {
-	if (sel.ob.x == -1)
+	if (sel.ob.x == -1 || sel.alt != IS_SET(MODE_ALTSCREEN))
 		return;
 
 	if (BETWEEN(sel.nb.y, orig, term.bot) != BETWEEN(sel.ne.y, orig, term.bot)) {
@@ -1132,6 +1154,7 @@ csiparse(void)
 {
 	char *p = csiescseq.buf, *np;
 	long int v;
+	int sep = ';'; /* colon or semi-colon, but not both */
 
 	csiescseq.narg = 0;
 	if (*p == '?') {
@@ -1149,7 +1172,9 @@ csiparse(void)
 			v = -1;
 		csiescseq.arg[csiescseq.narg++] = v;
 		p = np;
-		if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
+		if (sep == ';' && *p == ':')
+			sep = ':'; /* allow override to colon once */
+		if (*p != sep || csiescseq.narg == ESC_ARG_SIZ)
 			break;
 		p++;
 	}
@@ -1643,7 +1668,7 @@ csihandle(void)
 			ttywrite(vtiden, strlen(vtiden), 0);
 		break;
 	case 'b': /* REP -- if last char is printable print it <n> more times */
-		DEFAULT(csiescseq.arg[0], 1);
+		LIMIT(csiescseq.arg[0], 1, 65535);
 		if (term.lastc)
 			while (csiescseq.arg[0]-- > 0)
 				tputc(term.lastc);
@@ -1702,7 +1727,7 @@ csihandle(void)
 			}
 			break;
 		case 1: /* above */
-			if (term.c.y > 1)
+			if (term.c.y > 0)
 				tclearregion(0, 0, term.col-1, term.c.y-1);
 			tclearregion(0, term.c.y, term.c.x, term.c.y);
 			break;
@@ -1728,6 +1753,7 @@ csihandle(void)
 		}
 		break;
 	case 'S': /* SU -- Scroll <n> line up */
+		if (csiescseq.priv) break;
 		DEFAULT(csiescseq.arg[0], 1);
 		tscrollup(term.top, csiescseq.arg[0]);
 		break;
@@ -1769,11 +1795,18 @@ csihandle(void)
 	case 'm': /* SGR -- Terminal attribute (color) */
 		tsetattr(csiescseq.arg, csiescseq.narg);
 		break;
-	case 'n': /* DSR – Device Status Report (cursor position) */
-		if (csiescseq.arg[0] == 6) {
+	case 'n': /* DSR -- Device Status Report */
+		switch (csiescseq.arg[0]) {
+		case 5: /* Status Report "OK" `0n` */
+			ttywrite("\033[0n", sizeof("\033[0n") - 1, 0);
+			break;
+		case 6: /* Report Cursor Position (CPR) "<row>;<column>R" */
 			len = snprintf(buf, sizeof(buf), "\033[%i;%iR",
-					term.c.y+1, term.c.x+1);
+			               term.c.y+1, term.c.x+1);
 			ttywrite(buf, len, 0);
+			break;
+		default:
+			goto unknown;
 		}
 		break;
 	case 'r': /* DECSTBM -- Set Scrolling Region */
@@ -1790,7 +1823,11 @@ csihandle(void)
 		tcursor(CURSOR_SAVE);
 		break;
 	case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
-		tcursor(CURSOR_LOAD);
+		if (csiescseq.priv) {
+			goto unknown;
+		} else {
+			tcursor(CURSOR_LOAD);
+		}
 		break;
 	case ' ':
 		switch (csiescseq.mode[1]) {
@@ -2323,6 +2360,7 @@ eschandle(uchar ascii)
 		treset();
 		resettitle();
 		xloadcols();
+		xsetmode(0, MODE_HIDE);
 		break;
 	case '=': /* DECPAM -- Application keypad */
 		xsetmode(1, MODE_APPKEYPAD);
@@ -2415,6 +2453,9 @@ check_control_code:
 	 * they must not cause conflicts with sequences.
 	 */
 	if (control) {
+		/* in UTF-8 mode ignore handling C1 control characters */
+		if (IS_SET(MODE_UTF8) && ISCONTROLC1(u))
+			return;
 		tcontrolcode(u);
 		/*
 		 * control codes are not shown ever
@@ -2461,11 +2502,16 @@ check_control_code:
 		gp = &term.line[term.c.y][term.c.x];
 	}
 
-	if (IS_SET(MODE_INSERT) && term.c.x+width < term.col)
+	if (IS_SET(MODE_INSERT) && term.c.x+width < term.col) {
 		memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
+		gp->mode &= ~ATTR_WIDE;
+	}
 
 	if (term.c.x+width > term.col) {
-		tnewline(1);
+		if (IS_SET(MODE_WRAP))
+			tnewline(1);
+		else
+			tmoveto(term.col - width, term.c.y);
 		gp = &term.line[term.c.y][term.c.x];
 	}