Eeschema: add missing alternate body style to new schematic file format.

Fixes https://gitlab.com/kicad/code/kicad/issues/4321

eeschema/sch_sexpr_parser.cpp

@@ -2090,6 +2090,11 @@ SCH_COMPONENT* SCH_SEXPR_PARSER::parseSchematicSymbol()
             NeedRIGHT();
             break;
 
+        case T_convert:
+            symbol->SetConvert( parseInt( "symbol convert" ) );
+            NeedRIGHT();
+            break;
+
         case T_uuid:
             NeedSYMBOL();
             const_cast<KIID&>( symbol->m_Uuid ) = KIID( FromUTF8() );

eeschema/sch_sexpr_plugin.cpp

@@ -416,6 +416,7 @@ void SCH_SEXPR_PLUGIN::init( KIWAY* aKiway, const PROPERTIES* aProperties )
     m_kiway = aKiway;
     m_cache = NULL;
     m_out = NULL;
+    m_fieldId = MANDATORY_FIELDS;
 }
 
 
@@ -869,9 +870,12 @@ void SCH_SEXPR_PLUGIN::saveSymbol( SCH_COMPONENT* aSymbol, int aNestLevel )
     }
 
     if( !( aSymbol->GetInstanceReferences().size() > 1 ) )
-        m_out->Print( 0, " (unit %d)\n", aSymbol->GetUnit() );
-    else
-        m_out->Print( 0, "\n" );
+        m_out->Print( 0, " (unit %d)", aSymbol->GetUnit() );
+
+    if( aSymbol->GetConvert() == LIB_ITEM::LIB_CONVERT::DEMORGAN )
+        m_out->Print( 0, " (convert %d)", aSymbol->GetConvert() );
+
+    m_out->Print( 0, "\n" );
 
     // @todo Convert to full UUID if current UUID is a legacy time stamp.
     m_out->Print( aNestLevel + 1, "(uuid %s)\n",

eeschema/schematic.keywords

@@ -19,6 +19,7 @@ clock_low
 color
 comment
 company
+convert
 dash
 dash_dot
 data