Fix SVG plot with filename containing & character.

common/common_plotSVG_functions.cpp

@@ -99,6 +99,65 @@
 #include <macros.h>
 #include <kicad_string.h>
 
+
+
+/**
+ * Function XmlEsc
+ * translates '<' to "&lt;", '>' to "&gt;" and so on, according to the spec:
+ * http://www.w3.org/TR/2000/WD-xml-c14n-20000119.html#charescaping
+ * May be moved to a library if needed generally, but not expecting that.
+ */
+static wxString XmlEsc( const wxString& aStr, bool isAttribute = false )
+{
+    wxString    escaped;
+
+    escaped.reserve( aStr.length() );
+
+    for( wxString::const_iterator it = aStr.begin();  it != aStr.end();  ++it )
+    {
+        const wxChar c = *it;
+
+        switch( c )
+        {
+        case wxS( '<' ):
+            escaped.append( wxS( "&lt;" ) );
+            break;
+        case wxS( '>' ):
+            escaped.append( wxS( "&gt;" ) );
+            break;
+        case wxS( '&' ):
+            escaped.append( wxS( "&amp;" ) );
+            break;
+        case wxS( '\r' ):
+            escaped.append( wxS( "&#xD;" ) );
+            break;
+        default:
+            if( isAttribute )
+            {
+                switch( c )
+                {
+                case wxS( '"' ):
+                    escaped.append( wxS( "&quot;" ) );
+                    break;
+                case wxS( '\t' ):
+                    escaped.append( wxS( "&#x9;" ) );
+                    break;
+                case wxS( '\n' ):
+                    escaped.append( wxS( "&#xA;" ));
+                    break;
+                default:
+                    escaped.append(c);
+                }
+            }
+            else
+                escaped.append(c);
+        }
+    }
+
+    return escaped;
+}
+
+
 SVG_PLOTTER::SVG_PLOTTER()
 {
     m_graphics_changed = true;
@@ -460,10 +519,10 @@ bool SVG_PLOTTER::StartPlot()
 
     fprintf( outputFile,
              "<title>SVG Picture created as %s date %s </title>\n",
-             TO_UTF8( wxFileName( filename ).GetFullName() ), date_buf );
+             TO_UTF8( XmlEsc( wxFileName( filename ).GetFullName() ) ), date_buf );
     // End of header
     fprintf( outputFile, "  <desc>Picture generated by %s </desc>\n",
-             TO_UTF8( creator ) );
+             TO_UTF8( XmlEsc( creator ) ) );
 
     // output the pen and brush color (RVB values in hex) and opacity
     double opacity = 1.0;      // 0.0 (transparent to 1.0 (solid)