st-flexipatch

commit 1343b29ee5e8a9d67607a4616f74386a2951e276
parent 18e7dc554530dcbe6dcb9b3d1fb98a31bd8933d8
Author: Bakkeby <bakkeby@gmail.com>
Date:   Fri,  7 Apr 2023 14:30:23 +0200

Bump to 211964d.

ignore C1 control characters in UTF-8 mode

Ignore processing and printing C1 control characters in UTF-8 mode.
These are in the range: 0x80 - 0x9f.

By default in st the mode is set to UTF-8.

This matches more the behaviour of xterm with the options -u8 or +u8 also.
Also see the xterm resource "allowC1Printable".

Let me know if this breaks something, in most cases I don't think so.

As usual a very good reference is:
https://invisible-island.net/xterm/ctlseqs/ctlseqs.html

Ref.
https://git.suckless.org/st/commit/211964d56ee00a7d46e251cbc150afb79138ae37.html

Diffstat:
M
README.md
 | 
2
+-
M
st.c
 | 
3
+++

2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-Similar to [dwm-flexipatch](https://github.com/bakkeby/dwm-flexipatch) this st 0.9 (e5e9598, 2022-10-25) project has a different take on st patching. It uses preprocessor directives to decide whether or not to include a patch during build time. Essentially this means that this build, for better or worse, contains both the patched _and_ the original code. The aim being that you can select which patches to include and the build will contain that code and nothing more.
+Similar to [dwm-flexipatch](https://github.com/bakkeby/dwm-flexipatch) this st 0.9 (211964d, 2023-02-07) project has a different take on st patching. It uses preprocessor directives to decide whether or not to include a patch during build time. Essentially this means that this build, for better or worse, contains both the patched _and_ the original code. The aim being that you can select which patches to include and the build will contain that code and nothing more.
 
 For example to include the `alpha` patch then you would only need to flip this setting from 0 to 1 in [patches.h](https://github.com/bakkeby/st-flexipatch/blob/master/patches.def.h):
 ```c
diff --git a/st.c b/st.c
@@ -3176,6 +3176,9 @@ 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