Make undo action no-ops when the buffer is read-only

[lyx.git] / src / mathed / MathStream.cpp

diff --git a/src/mathed/MathStream.cpp b/src/mathed/MathStream.cpp
index a6d160ce32aaf978ec61d3fcf5c4cf8e2054d0a5..a05e54aacd80b2e8fc0bb6250128d1491e259bba 100644 (file)
--- a/src/mathed/MathStream.cpp
+++ b/src/mathed/MathStream.cpp
@@ -361,8 +361,8 @@ MathMLStream & operator<<(MathMLStream & ms, char_type c)
 
 MathMLStream & operator<<(MathMLStream & ms, MTag const & t)
 {
-       ++ms.tab();
        ms.cr();
+       ++ms.tab();
        ms.os() << '<' << from_ascii(ms.namespacedTag(t.tag_));
        if (!t.attr_.empty())
                ms.os() << " " << from_ascii(t.attr_);
@@ -384,9 +384,9 @@ MathMLStream & operator<<(MathMLStream & ms, MTagInline const & t)
 
 MathMLStream & operator<<(MathMLStream & ms, ETag const & t)
 {
-       ms.cr();
        if (ms.tab() > 0)
                --ms.tab();
+       ms.cr();
        ms.os() << "</" << from_ascii(ms.namespacedTag(t.tag_)) << ">";
        return ms;
 }