commit b697350f15956135914068eff6262ae1c1b202c8
parent 55c12687a05acbe17a60d2d5812e8c5532675d6c
Author: Michael Buch <michaelbuch12@gmail.com>
Date: Sun, 9 Jan 2022 19:59:09 +0000
[wiki][st][patches] Ignore configurable delimiter on line snap selection
This patch adds following new variable into `config.def.h`:
* `snap_line_delimiters`: this is the array of (multi-byte) characters which
will terminate a line snap selection. By default it
contains the `tmux` window pane separator `│`.
The primary use-case would be snap selecting a line in a terminal
multiplexer like tmux. Such selection would typically select across
all panes, whereas the user most likely wanted to select only the line
within a pane.
Diffstat:
2 files changed, 119 insertions(+), 0 deletions(-)
diff --git a/st.suckless.org/patches/line_snap_delimiter/index.md b/st.suckless.org/patches/line_snap_delimiter/index.md
@@ -0,0 +1,33 @@
+line\_snap\_delimiter
+=====================
+
+Description
+-----------
+The primary use-case would be snap selecting a line in a terminal
+multiplexer like tmux. Such selection would typically select across
+all panes, whereas the user most likely wanted to select only the line
+within a pane.
+
+This patch adds following new variable into `config.def.h`:
+* `snap_line_delimiters`: this is the array of (multi-byte) characters which
+ will terminate a line snap selection. By default it
+ contains the `tmux` window pane separator `│`.
+
+Notes
+-----
+* When snap selecting a line and dragging it, the selection can span multiple
+ panes. It's probably possible to address this in follow-up patches.
+
+* The new delimiter variable does *not* affect word snap selection. If you want
+ to ignore certain characters when double tapping a word for seleciton, add that
+ character to `worddelimiters` in `config.def.h`. However, if a word snap selection
+ does select the line snap delimiter, a subsequent line snap selection will de-select
+ that character again anyway.
+
+Download
+--------
+* [st-line\_snap\_delimiter-3bd7e43.diff](st-line_snap_delimiter-3bd7e43.diff)
+
+Authors
+-------
+* Michael Buch - <michaelbuch12@gmail.com>
diff --git a/st.suckless.org/patches/line_snap_delimiter/st-line_snap_delimiter-3bd7e43.diff b/st.suckless.org/patches/line_snap_delimiter/st-line_snap_delimiter-3bd7e43.diff
@@ -0,0 +1,86 @@
+From 3bd7e43c2666084814b09a4a4412029a0b53eb37 Mon Sep 17 00:00:00 2001
+From: Michael Buch <michaelbuch12@gmail.com>
+Date: Sun, 9 Jan 2022 19:37:07 +0000
+Subject: [PATCH] [st][patches] Ignore configurable delimiter on line snap
+ selection
+
+Adds ability to ignore certain characters when snap selecting
+an entire line (e.g., triple mouse button press).
+---
+ config.def.h | 1 +
+ st.c | 22 +++++++++++++++++++++-
+ st.h | 1 +
+ 3 files changed, 23 insertions(+), 1 deletion(-)
+
+diff --git a/config.def.h b/config.def.h
+index 91ab8ca..272fdc5 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -35,6 +35,7 @@ static float chscale = 1.0;
+ * More advanced example: L" `'\"()[]{}"
+ */
+ wchar_t *worddelimiters = L" ";
++wchar_t *snap_line_delimiters = L"│";
+
+ /* selection timeouts (in milliseconds) */
+ static unsigned int doubleclicktimeout = 300;
+diff --git a/st.c b/st.c
+index 51049ba..0d57a7e 100644
+--- a/st.c
++++ b/st.c
+@@ -42,6 +42,7 @@
+ #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
+ #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
+ #define ISDELIM(u) (u && wcschr(worddelimiters, u))
++#define IS_SNAP_LINE_DELIM(u) (u && wcschr(snap_line_delimiters, u))
+
+ enum term_mode {
+ MODE_WRAP = 1 << 0,
+@@ -563,12 +564,31 @@ selsnap(int *x, int *y, int direction)
+ }
+ break;
+ case SNAP_LINE:
++ /*
++ * Don't snap past a line snap delimiter
++ * (see 'snap_line_delimiters' in config.h)
++ */
++ for(;;) {
++ newx = *x + direction;
++
++ if (!BETWEEN(newx, 0, term.col - 1)) {
++ break;
++ }
++
++ gp = &term.line[*y][newx];
++
++ if(IS_SNAP_LINE_DELIM(gp->u)) {
++ break;
++ }
++
++ *x = newx;
++ }
++
+ /*
+ * Snap around if the the previous line or the current one
+ * has set ATTR_WRAP at its end. Then the whole next or
+ * previous line will be selected.
+ */
+- *x = (direction < 0) ? 0 : term.col - 1;
+ if (direction < 0) {
+ for (; *y > 0; *y += direction) {
+ if (!(term.line[*y-1][term.col-1].mode
+diff --git a/st.h b/st.h
+index 519b9bd..9a97472 100644
+--- a/st.h
++++ b/st.h
+@@ -119,6 +119,7 @@ extern char *scroll;
+ extern char *stty_args;
+ extern char *vtiden;
+ extern wchar_t *worddelimiters;
++extern wchar_t *snap_line_delimiters;
+ extern int allowaltscreen;
+ extern int allowwindowops;
+ extern char *termname;
+--
+2.32.0
+
