feat: Add convience functions for IFS handling. Closes #13

Author: hyperupcall

pkg/src/public/bash-core.sh

@@ -380,6 +380,17 @@ core.print_debug() {
 	fi
 }
 
+core.ifs_save() {
+	local new_ifs="$1"
+
+	___global_ifs_variable_saved___=$IFS
+	IFS=$new_ifs
+}
+
+core.ifs_restore() {
+	IFS=$___global_ifs_variable_saved___
+}
+
 # @description (DEPRECATED). Determine if color should be printed. Note that this doesn't
 # use tput because simple environment variable checking heuristics suffice. Deprecated because this code
 # has been moved to bash-std

tests/ifs.bats

@@ -0,0 +1,17 @@
+#!/usr/bin/env bats
+
+load './util/init.sh'
+
+@test "core.ifs_save sets new ifs" {
+	core.ifs_save 'w'
+
+	assert [ "$IFS" = 'w' ]
+}
+
+@test "core.ifs_restore restores ifs that was saved" {
+	IFS=q
+	core.ifs_save 'w'
+	core.ifs_restore
+
+	assert [ "$IFS" = 'q' ]
+}