fix: Undo deletion of 'core.trap_common_global_handler'

Author: hyperupcall

basalt.toml

@@ -8,7 +8,7 @@ description = 'Core lightweight functions that any Bash programmer will love'
 
 [run]
 dependencies = ['https://github.com/hyperupcall/bats-all.git@v4.1.0']
-sourceDirs = ['pkg/src/public']
+sourceDirs = ['pkg/src/public', 'pkg/src/util']
 builtinDirs = []
 binDirs = []
 completionDirs = []

pkg/src/util/util.sh

@@ -0,0 +1,21 @@
+# shellcheck shell=bash
+
+core.trap_common_global_handler() {
+	local signal_spec="$1"
+
+	local trap_handlers=
+	IFS=$'\x1C' read -ra trap_handlers <<< "${___global_trap_table___[$signal_spec]}"
+
+	local trap_handler=
+	for trap_handler in "${trap_handlers[@]}"; do
+		if [ -z "$trap_handler" ]; then
+			continue
+		fi
+
+		if declare -f "$trap_handler" &>/dev/null; then
+			"$trap_handler"
+		else
+			printf "%s\n" "Warn: core.trap_add: Function '$trap_handler' registered for signal '$signal_spec' no longer exists. Skipping" >&2
+		fi
+	done; unset trap_func
+}