Add uppercase-regex-insert config option.

Fixes #2159.

This makes the "uppercase hint character inserts selected text" behavior
added in #1975 configurable, as it can have unexpected behavior for some users.

It defaults to "off", preserving the original behavior of `foot` before #1975.

CHANGELOG.md

@@ -67,6 +67,13 @@
 
 ## Unreleased
 ### Added
+
+* The `uppercase-regex-insert` option controls whether an uppercase hint
+  character will insert the selected text into the prompt in `regex-copy`
+  or `show-urls-copy` mode. ([#2159]2159[]).
+
+[2159]: https://codeberg.org/dnkl/foot/issues/2159
+
 ### Changed
 
 * The label letters are no longer sorted before being assigned to URLs

config.c

@@ -1111,6 +1111,9 @@ parse_section_main(struct context *ctx)
                              (int *)&conf->initial_color_theme);
     }
 
+    else if (streq(key, "uppercase-regex-insert"))
+        return value_to_bool(ctx, &conf->uppercase_regex_insert);
+
     else {
         LOG_CONTEXTUAL_ERR("not a valid option: %s", key);
         return false;
@@ -3375,6 +3378,7 @@ config_load(struct config *conf, const char *conf_path,
         .strikeout_thickness = {.pt = 0., .px = -1},
         .dpi_aware = false,
         .gamma_correct = false,
+        .uppercase_regex_insert = false,
         .security = {
             .osc52 = OSC52_ENABLED,
         },

config.h

@@ -247,6 +247,7 @@ struct config {
 
     bool dpi_aware;
     bool gamma_correct;
+    bool uppercase_regex_insert;
     struct config_font_list fonts[4];
     struct font_size_adjustment font_size_adjustment;
 

doc/foot.ini.5.scd

@@ -231,6 +231,11 @@ empty string to be set, but it must be quoted: *KEY=""*)
 	
 	Default: _no_.
 
+*upppercase-regex-insert*
+	Boolean. When enabled, inputting an uppercase hint character in
+	*show-urls-copy* or *regex-copy* mode will insert the selected
+	text into the prompt in addition to copying it to the clipboard.
+
 *box-drawings-uses-font-glyphs*
 	Boolean. When disabled, foot generates box/line drawing characters
 	itself. The are several advantages to doing this instead of using

foot.ini

@@ -40,6 +40,8 @@
 # utmp-helper=/usr/lib/utempter/utempter  # When utmp backend is ‘libutempter’ (Linux)
 # utmp-helper=/usr/libexec/ulog-helper    # When utmp backend is ‘ulog’ (FreeBSD)
 
+# uppercase-regex-insert=no
+
 [environment]
 # name=value
 

url-mode.c

@@ -283,7 +283,8 @@ urls_input(struct seat *seat, struct terminal *term,
 
     if (match) {
         // If the last hint character was uppercase, copy and paste
-        activate_url(seat, term, match, serial, wc == toc32upper(wc));
+        bool insert = term->conf->uppercase_regex_insert && wc == toc32upper(wc);
+        activate_url(seat, term, match, serial, insert);
 
         switch (match->action) {
         case URL_ACTION_COPY: