fix(unscope_vars): replace glob pattern matching with regex matching

        _cmp_val_prefix="scoped__${_target_var}__${_condition}__${_cond_var}__${_test_op}__"

        _cmp_val=${_scoped_var#"$_cmp_val_prefix"}

        # manage 'ignore case'

        if [[ "$_test_op" == *_ic ]]

        if [[ "$_test_op" =~ _ic$ ]]

        then

          # lowercase everything

          _cond_val=$(echo "$_cond_val" | tr '[:upper:]' '[:lower:]')