Protect library functions from IFS changes.

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/common.sh b/lib/common.sh
index 1488bd7..78f1c62 100644
--- a/lib/common.sh
+++ b/lib/common.sh
@@ -21,21 +21,30 @@
 _OB_COMMON_SM='true'
 
 _OB_STACK_VARS=
+_OB_SAVED_IFS=
 
 _ob_local()
 {
 	# Push the variable list onto the stack.
 	_OB_STACK_VARS="${_OB_STACK_VARS}|${*}"
+
+	# Save the old IFS value, if any, and set it to its default.
+	_OB_SAVED_IFS="${IFS}"
+	unset IFS
 }
 
 _ob_return()
 {
 	# Unset the variables at the top of the stack.
+	IFS=' '
 	unset -v ${_OB_STACK_VARS##*|}
 
 	# Pop the variable list from the top of the stack.
 	_OB_STACK_VARS="${_OB_STACK_VARS%|*}"
 
+	# Restore the saved IFS.
+	IFS="${_OB_SAVED_IFS}"
+
 	return ${1}
 }