only set modified flag if real changes have been made to the document

1 files changed, 4 insertions, 0 deletions

diff --git a/src/PSEditText.cxx b/src/PSEditText.cxx
index 0231807..2c572ff 100644
--- a/src/PSEditText.cxx
+++ b/src/PSEditText.cxx
@@ -113,6 +113,10 @@ char *PSEditText::get_text() {
   return s;
 }
 
+int PSEditText::is_empty() {
+  return !s || !s[0];
+}
+
 char *PSEditText::get_tag() {
   return tag;
 }