ENH: Define separate open_searcher_override instead of reusing open_opener_override

Users may have a special command for invoking the browser vs. opened general files.

Author: inkarkat

README.md

@@ -74,6 +74,10 @@ Put `set -g @open-editor-command 'my-editor'` in `tmux.conf`.
 
 Put `set -g @open-opener-command 'my-opener'` in `tmux.conf`.
 
+> How can I change the default command for opening the web search?
+
+Put `set -g @open-searcher-command 'my-searcher'` in `tmux.conf`.
+
 > How can I change the default search engine to "duckduckgo" or any other one?
 
 Put `set -g @open-S 'https://www.duckduckgo.com/'` in `tmux.conf`

open.tmux

@@ -13,6 +13,7 @@ open_editor_option="@open-editor"
 open_editor_override="@open-editor-command"
 
 open_opener_override="@open-opener-command"
+open_searcher_override="@open-searcher-command"
 
 command_exists() {
 	local command="$1"
@@ -58,7 +59,7 @@ generate_open_command() {
 generate_open_search_command() {
 	local engine="$1"
 	local opener
-	if opener="$(get_tmux_option "$open_opener_override" '')" && [ -n "${opener-}" ]; then
+	if opener="$(get_tmux_option "$open_searcher_override" '')" && [ -n "${opener-}" ]; then
 		search_command_generator "$opener" "$engine"
 	elif is_osx; then
 		search_command_generator "open" "$engine"

scripts/helpers.sh

@@ -35,7 +35,7 @@ display_message() {
 stored_engine_vars() {
 	tmux show-options -g |
 		grep -i "^@open-" |
-		grep -Evi "^@open-(editor|opener)" |
+		grep -Evi "^@open-(editor|opener|searcher)" |
 		cut -d '-' -f2 |
 		cut -d ' ' -f1 |
 		xargs