Adding osc_10_11_12_2 patch ref. #21

README.md

@@ -15,7 +15,7 @@ Refer to [https://st.suckless.org/](https://st.suckless.org/) for details on the
 
 ### Changelog:
 
-2021-05-08 - Added blinking cursor, undercurl, desktopentry and netwmicon patches
+2021-05-08 - Added blinking cursor, undercurl, desktopentry, netwmicon and osc_10_11_12_2 patches
 
 2021-05-07 - Added xresources reload patch
 
@@ -154,6 +154,14 @@ Refer to [https://st.suckless.org/](https://st.suckless.org/) for details on the
    - [open-copied-url](https://st.suckless.org/patches/open_copied_url/)
       - open contents of the clipboard in a user-defined browser
 
+   - [osc_10_11_12_2](https://st.suckless.org/patches/osc_10_11_12_2/)
+      - this patch adds support for OSC escape sequences 10, 11, and 12 in the way they are
+        implemented in most other terminals (e.g libvte, kitty)
+      - specifically it differs from [osc_10_11_12](https://st.suckless.org/patches/osc_10_11_12/)
+        in that it treats the background and foreground colors as distinct from palette colours 01
+        and 07 in order to facilitate the use of theme setting scripts like
+        [theme.sh](https://github.com/lemnos/theme.sh) which expect these colours to be distinct
+
    - [relativeborder](https://st.suckless.org/patches/relativeborder/)
       - allows you to specify a border that is relative in size to the width of a cell in the terminal
 

patches.def.h

@@ -186,6 +186,16 @@
  */
 #define OPENCOPIED_PATCH 0
 
+/* This patch adds support for OSC escape sequences 10, 11 and 12 that modify the background,
+ * foreground and cursor colors in the way they are implemented in most other terminals
+ * (e.g libvte, kitty). Specifically it differs from https://st.suckless.org/patches/osc_10_11_12/
+ * in that it treats the background and foreground colors as distinct from palette colours
+ * 01 and 07 in order to facilitate the use of theme setting scripts like theme.sh
+ * (https://github.com/lemnos/theme.sh) which expect these colours to be distinct.
+ * https://st.suckless.org/patches/osc_10_11_12_2/
+ */
+#define OSC_10_11_12_2_PATCH 0
+
 /* This patch allows you to specify a border that is relative in size to the width of a cell
  * in the terminal.
  * https://st.suckless.org/patches/relativeborder/

st.c

@@ -2140,10 +2140,43 @@ strhandle(void)
 				}
 			}
 			return;
-		case 4: /* color set */
 		case 10: /* foreground set */
+			#if OSC_10_11_12_2_PATCH
+			if (narg < 2)
+				break;
+
+			p = strescseq.args[1];
+			if (xsetcolorname(defaultfg, p))
+				fprintf(stderr, "erresc: invalid foreground color %d\n", p);
+			else
+				redraw();
+			break;
+			#endif // OSC_10_11_12_2_PATCH
 		case 11: /* background set */
+			#if OSC_10_11_12_2_PATCH
+			if (narg < 2)
+				break;
+
+			p = strescseq.args[1];
+			if (xsetcolorname(defaultbg, p))
+				fprintf(stderr, "erresc: invalid background color %d\n", p);
+			else
+				redraw();
+			break;
+			#endif // OSC_10_11_12_2_PATCH
 		case 12: /* cursor color */
+			#if OSC_10_11_12_2_PATCH
+			if (narg < 2)
+				break;
+
+			p = strescseq.args[1];
+			if (xsetcolorname(defaultcs, p))
+				fprintf(stderr, "erresc: invalid cursor color %d\n", p);
+			else
+				redraw();
+			break;
+			#endif // OSC_10_11_12_2_PATCH
+		case 4: /* color set */
 			if ((par == 4 && narg < 3) || narg < 2)
 				break;
 			p = strescseq.args[((par == 4) ? 2 : 1)];