Escape "naughty" characters in symbol names.

It's tempting to say that we don't need to exclude filename chars
from symbols, but we might regret that decision down the road.  Better
to just escape them.

Fixes https://gitlab.com/kicad/code/kicad/issues/8694

common/lib_tree_model.cpp

@@ -213,7 +213,7 @@ void LIB_TREE_NODE_LIB_ID::UpdateScore( EDA_COMBINED_MATCHER& aMatcher )
 
     if( !m_Normalized )
     {
-        m_MatchName = m_MatchName.Lower();
+        m_MatchName = UnescapeString( m_MatchName ).Lower();
         m_SearchText = m_SearchText.Lower();
         m_Normalized = true;
     }

common/lib_tree_model_adapter.cpp

@@ -29,6 +29,7 @@
 #include <widgets/ui_common.h>
 #include <wx/tokenzr.h>
 #include <wx/wupdlock.h>
+#include <kicad_string.h>
 
 
 #define PINNED_ITEMS_KEY      wxT( "PinnedItems" )
@@ -455,7 +456,7 @@ void LIB_TREE_MODEL_ADAPTER::GetValue( wxVariant&              aVariant,
     {
     default:    // column == -1 is used for default Compare function
     case 0:
-        aVariant = node->m_Name;
+        aVariant = UnescapeString( node->m_Name );
         break;
     case 1:
         aVariant = node->m_Desc;

common/string.cpp

@@ -157,6 +157,14 @@ wxString EscapeString( const wxString& aSource, ESCAPE_CONTEXT aContext )
         {
             if( c == '{' )
                 converted += "{brace}";
+            else if( c == '/' )
+                converted += "{slash}";
+            else if( c == '\\' )
+                converted += "{backslash}";
+            else if( c == '<' )
+                converted += "{lt}";
+            else if( c == '>' )
+                converted += "{gt}";
             else if( c == ':' )
                 converted += "{colon}";
             else if( c == '\n' || c == '\r' )

eeschema/dialogs/dialog_change_symbols.cpp

@@ -606,7 +606,7 @@ bool DIALOG_CHANGE_SYMBOLS::processSymbol( SCH_SYMBOL* aSymbol, const SCH_SHEET_
                 if( i == REFERENCE_FIELD )
                     aSymbol->SetRef( aInstance, UTIL::GetRefDesUnannotated( libField->GetText() ) );
                 else if( i == VALUE_FIELD )
-                    aSymbol->SetValue( aInstance, libField->GetText() );
+                    aSymbol->SetValue( aInstance, UnescapeString( libField->GetText() ) );
                 else if( i == FOOTPRINT_FIELD )
                     aSymbol->SetFootprint( aInstance, libField->GetText() );
                 else

eeschema/dialogs/dialog_edit_one_field.cpp

@@ -282,6 +282,9 @@ DIALOG_LIB_EDIT_ONE_FIELD::DIALOG_LIB_EDIT_ONE_FIELD( SCH_BASE_FRAME* aParent,
 {
     m_fieldId = aField->GetId();
 
+    if( m_fieldId == VALUE_FIELD )
+        m_text = UnescapeString( aField->GetText() );
+
     // When in the library editor, power symbols can be renamed.
     m_isPower = false;
     init();

eeschema/dialogs/dialog_edit_one_field.h

@@ -117,11 +117,16 @@ public:
 
     void UpdateField( LIB_FIELD* aField )
     {
-        aField->SetText( m_text );
+        wxString value = m_text;
+
+        if( m_fieldId == VALUE_FIELD )
+            value = EscapeString( value, CTX_LIBID );
+
+        aField->SetText( value );
 
         // VALUE === symbol name, so update the parent symbol if it changes.
-        if( aField->GetId() == VALUE_FIELD && aField->GetParent() )
-            aField->GetParent()->SetName( m_text );
+        if( m_fieldId == VALUE_FIELD && aField->GetParent() )
+            aField->GetParent()->SetName( value );
 
         updateText( aField );
     }

eeschema/dialogs/dialog_edit_symbols_libid.cpp

@@ -30,7 +30,6 @@
 
 #include <confirm.h>
 #include <sch_edit_frame.h>
-#include <sch_draw_panel.h>
 #include <sch_symbol.h>
 #include <sch_reference_list.h>
 #include <schematic.h>
@@ -44,6 +43,8 @@
 #include <wx/dcclient.h>
 #include <grid_tricks.h>
 #include <widgets/grid_text_button_helpers.h>
+#include <kicad_string.h>
+
 
 #define COL_REFS 0
 #define COL_CURR_LIBID 1
@@ -696,6 +697,11 @@ bool DIALOG_EDIT_SYMBOLS_LIBID::TransferDataFromWindow()
     if( !validateLibIds() )
         return false;
 
+    auto getName = []( const LIB_ID& aLibId )
+            {
+                return UnescapeString( aLibId.GetLibItemName().wx_str() );
+            };
+
     int row_max = m_grid->GetNumberRows() - 1;
 
     for( int row = 0; row <= row_max; row++ )
@@ -743,8 +749,8 @@ bool DIALOG_EDIT_SYMBOLS_LIBID::TransferDataFromWindow()
             SCH_FIELD* value = candidate.m_Symbol->GetField( VALUE_FIELD );
 
             // If value is a proxy for the itemName then make sure it gets updated
-            if( candidate.m_Symbol->GetLibId().GetLibItemName().wx_str() == value->GetText() )
-                candidate.m_Symbol->SetValue( id.GetLibItemName().wx_str() );
+            if( getName( candidate.m_Symbol->GetLibId() ) == value->GetText() )
+                candidate.m_Symbol->SetValue( getName( id ) );
 
             candidate.m_Symbol->SetLibId( id );
             candidate.m_Symbol->SetLibSymbol( symbol->Flatten().release() );

eeschema/dialogs/dialog_lib_symbol_properties.cpp

@@ -31,6 +31,7 @@
 #include <sch_symbol.h>
 #include <widgets/grid_text_button_helpers.h>
 #include <widgets/wx_grid.h>
+#include <kicad_string.h>
 
 #ifdef KICAD_SPICE
 #include <dialog_spice_model.h>
@@ -165,7 +166,7 @@ bool DIALOG_LIB_SYMBOL_PROPERTIES::TransferDataToWindow()
     m_grid->ProcessTableMessage( msg );
     adjustGridColumns( m_grid->GetRect().GetWidth() );
 
-    m_SymbolNameCtrl->ChangeValue( m_libEntry->GetName() );
+    m_SymbolNameCtrl->ChangeValue( UnescapeString( m_libEntry->GetName() ) );
 
     m_DescCtrl->ChangeValue( m_libEntry->GetDescription() );
     m_KeywordCtrl->ChangeValue( m_libEntry->GetKeyWords() );
@@ -200,7 +201,7 @@ bool DIALOG_LIB_SYMBOL_PROPERTIES::TransferDataToWindow()
 
         wxCHECK( rootSymbol, false );
 
-        wxString parentName = rootSymbol->GetName();
+        wxString parentName = UnescapeString( rootSymbol->GetName() );
         int selection = m_inheritanceSelectCombo->FindString( parentName );
 
         wxCHECK( selection != wxNOT_FOUND, false );
@@ -312,7 +313,8 @@ bool DIALOG_LIB_SYMBOL_PROPERTIES::TransferDataFromWindow()
             wxString msg;
 
             msg.Printf( _( "The name '%s' conflicts with an existing entry in the library '%s'." ),
-                        newName, libName );
+                        UnescapeString( newName ),
+                        libName );
             DisplayErrorMessage( this, msg );
             return false;
         }
@@ -339,7 +341,7 @@ bool DIALOG_LIB_SYMBOL_PROPERTIES::TransferDataFromWindow()
     // Update the parent for inherited symbols
     if( m_libEntry->IsAlias() )
     {
-        wxString parentName = m_inheritanceSelectCombo->GetValue();
+        wxString parentName = EscapeString( m_inheritanceSelectCombo->GetValue(), CTX_LIBID );
 
         // The parentName was verified to be non-empty in the Validator
         wxString libName = m_Parent->GetCurLib();
@@ -435,7 +437,9 @@ void DIALOG_LIB_SYMBOL_PROPERTIES::OnGridCellChanging( wxGridEvent& event )
         }
     }
     else if( event.GetRow() == VALUE_FIELD && event.GetCol() == FDC_VALUE )
+    {
         m_SymbolNameCtrl->ChangeValue( event.GetString() );
+    }
 
     editor->DecRef();
 }

eeschema/dialogs/dialog_symbol_properties.cpp

@@ -781,7 +781,7 @@ void DIALOG_SYMBOL_PROPERTIES::OnGridCellChanging( wxGridEvent& event )
 
             if( newName.CmpNoCase( m_fieldsGrid->GetCellValue( i, FDC_NAME ) ) == 0 )
             {
-                DisplayError( this, wxString::Format( _( "The name '%s' is already in use." ),
+                DisplayError( this, wxString::Format( _( "Field name '%s' already in use." ),
                                                       newName ) );
                 event.Veto();
                 m_delayedFocusRow = event.GetRow();

eeschema/dialogs/dialog_update_symbol_fields.cpp

@@ -25,6 +25,7 @@
 #include <lib_symbol.h>
 #include <symbol_edit_frame.h>
 #include <template_fieldnames.h>
+#include <kicad_string.h>
 
 
 bool g_removeExtraLibFields      = false;
@@ -44,7 +45,7 @@ DIALOG_UPDATE_SYMBOL_FIELDS::DIALOG_UPDATE_SYMBOL_FIELDS( SYMBOL_EDIT_FRAME* aPa
     wxASSERT( aParent );
     wxASSERT( aSymbol );
 
-    m_parentSymbolReadOnly->SetValue( m_symbol->GetParent().lock()->GetName() );
+    m_parentSymbolReadOnly->SetValue( UnescapeString( m_symbol->GetParent().lock()->GetName() ) );
 
     for( int i = 0; i < MANDATORY_FIELDS; ++i )
     {

eeschema/dialogs/panel_sym_lib_table.cpp

@@ -503,7 +503,7 @@ void PANEL_SYM_LIB_TABLE::browseLibrariesHandler( wxCommandEvent& event )
     {
         wxString   filePath = dlg.GetDirectory() + wxFileName::GetPathSeparator() + file;
         wxFileName fn( filePath );
-        wxString   nickname = LIB_ID::FixIllegalChars( fn.GetName() );
+        wxString   nickname = LIB_ID::FixIllegalChars( fn.GetName(), true );
         bool       doAdd = true;
 
         if( cur_model()->ContainsNickname( nickname ) )

eeschema/fields_grid_table.cpp

@@ -36,6 +36,7 @@
 #include <project/project_file.h>
 #include "eda_doc.h"
 #include <wx/settings.h>
+#include <kicad_string.h>
 
 
 enum
@@ -381,7 +382,7 @@ wxString FIELDS_GRID_TABLE<T>::GetValue( int aRow, int aCol )
         return field.GetName( false );
 
     case FDC_VALUE:
-        return field.GetText();
+        return UnescapeString( field.GetText() );
 
     case FDC_SHOWN:
         return StringFromBool( field.IsVisible() );
@@ -487,6 +488,10 @@ void FIELDS_GRID_TABLE<T>::SetValue( int aRow, int aCol, const wxString &aValue
                 value = fn.GetFullPath();
             }
         }
+        else if( m_parentType == SCH_SYMBOL_T && aRow == VALUE_FIELD )
+        {
+            value = EscapeString( value, CTX_LIBID );
+        }
 
         field.SetText( value );
     }

eeschema/generate_alias_info.cpp

@@ -106,7 +106,7 @@ public:
 protected:
     void SetHtmlName()
     {
-        m_html.Replace( "__NAME__", EscapeHTML( m_symbol->GetName() ) );
+        m_html.Replace( "__NAME__", EscapeHTML( UnescapeString( m_symbol->GetName() ) ) );
     }
 
 
@@ -130,7 +130,7 @@ protected:
             }
 
             m_html.Replace( "__ALIASOF__", wxString::Format(  AliasOfFormat,
-                                                              EscapeHTML( root_name ),
+                                                              EscapeHTML( UnescapeString( root_name ) ),
                                                               EscapeHTML( root_desc ) ) );
         }
     }

eeschema/lib_symbol.cpp

@@ -313,12 +313,10 @@ wxString LIB_SYMBOL::GetUnitReference( int aUnit )
 
 void LIB_SYMBOL::SetName( const wxString& aName )
 {
-    wxString validatedName = LIB_ID::FixIllegalChars( aName );
+    m_name = aName;
+    m_libId.SetLibItemName( aName, false );
 
-    m_name = validatedName;
-    m_libId.SetLibItemName( validatedName, false );
-
-    GetValueField().SetText( validatedName );
+    GetValueField().SetText( aName );
 }
 
 

eeschema/project_rescue.cpp

@@ -89,7 +89,7 @@ static void getSymbols( SCHEMATIC* aSchematic, std::vector<SCH_SYMBOL*>& aSymbol
 static LIB_SYMBOL* findSymbol( const wxString& aName, SYMBOL_LIBS* aLibs, bool aCached )
 {
     LIB_SYMBOL *symbol = NULL;
-    wxString new_name = LIB_ID::FixIllegalChars( aName );
+    wxString new_name = LIB_ID::FixIllegalChars( aName, false );
 
     for( SYMBOL_LIB& each_lib : *aLibs )
     {
@@ -150,7 +150,7 @@ void RESCUE_CASE_CANDIDATE::FindRescues( RESCUER& aRescuer,
     for( SCH_SYMBOL* eachSymbol : *( aRescuer.GetSymbols() ) )
     {
         symbol_name = eachSymbol->GetLibId().GetLibItemName();
-        search_name = LIB_ID::FixIllegalChars( symbol_name );
+        search_name = LIB_ID::FixIllegalChars( symbol_name, false );
 
         if( last_symbol_name != symbol_name )
         {
@@ -255,7 +255,7 @@ void RESCUE_CACHE_CANDIDATE::FindRescues( RESCUER& aRescuer,
     for( SCH_SYMBOL* eachSymbol : *( aRescuer.GetSymbols() ) )
     {
         symbol_name = eachSymbol->GetLibId().GetLibItemName();
-        search_name = LIB_ID::FixIllegalChars( symbol_name );
+        search_name = LIB_ID::FixIllegalChars( symbol_name, false );
 
         if( old_symbol_name != symbol_name )
         {
@@ -426,7 +426,7 @@ void RESCUE_SYMBOL_LIB_TABLE_CANDIDATE::FindRescues(
             }
 
             // Fix illegal LIB_ID name characters.
-            wxString new_name = LIB_ID::FixIllegalChars( symbol_id.GetLibItemName() );
+            wxString new_name = LIB_ID::FixIllegalChars( symbol_id.GetLibItemName(), false );
 
             // Differentiate symbol name in the rescue library by appending the symbol library
             // table nickname to the symbol name to prevent name clashes in the rescue library.

eeschema/sch_painter.cpp

@@ -63,6 +63,7 @@
 #include <kiface_i.h>
 #include <default_values.h>
 #include <advanced_config.h>
+#include <kicad_string.h>
 #include "sch_painter.h"
 
 namespace KIGFX
@@ -672,7 +673,7 @@ void SCH_PAINTER::draw( const LIB_FIELD *aField, int aLayer )
 
         double orient = aField->GetTextAngleRadians();
 
-        strokeText( aField->GetText(), pos, orient );
+        strokeText( UnescapeString( aField->GetText() ), pos, orient );
     }
 
     // Draw the umbilical line

eeschema/sch_plugins/cadstar/cadstar_sch_archive_loader.cpp

@@ -535,7 +535,7 @@ void CADSTAR_SCH_ARCHIVE_LOADER::loadSchematicSymbolInstances()
 
                 // Name of the net that the symbol instance in CADSTAR refers to:
                 wxString symbolInstanceNetName = sym.SymbolVariant.Reference;
-                symbolInstanceNetName = LIB_ID::FixIllegalChars( symbolInstanceNetName );
+                symbolInstanceNetName = EscapeString( symbolInstanceNetName, CTX_LIBID );
 
                 // Name of the symbol we will use for saving the part in KiCad
                 // Note: In CADSTAR all power symbols will start have the reference name be

eeschema/sch_plugins/eagle/sch_eagle_plugin.cpp

@@ -3006,7 +3006,7 @@ void SCH_EAGLE_PLUGIN::addImplicitConnections( SCH_SYMBOL* aSymbol, SCH_SCREEN*
 
 wxString SCH_EAGLE_PLUGIN::fixSymbolName( const wxString& aName )
 {
-    wxString ret = LIB_ID::FixIllegalChars( aName );
+    wxString ret = EscapeString( aName, CTX_LIBID );
 
     return ret;
 }

eeschema/sch_plugins/legacy/sch_legacy_plugin.cpp

@@ -2734,7 +2734,7 @@ void SCH_LEGACY_PLUGIN_CACHE::loadDocs()
 
         aliasName = wxString::FromUTF8( line );
         aliasName.Trim();
-        aliasName = LIB_ID::FixIllegalChars( aliasName );
+        aliasName = EscapeString( aliasName, CTX_LIBID );
 
         LIB_SYMBOL_MAP::iterator it = m_symbols.find( aliasName );
 

eeschema/sch_symbol.cpp

@@ -36,6 +36,7 @@
 #include <trigo.h>
 #include <refdes_utils.h>
 #include <wx/log.h>
+#include <kicad_string.h>
 
 /**
  * Convert a wxString to UTF8 and replace any control characters with a ~,
@@ -791,9 +792,9 @@ void SCH_SYMBOL::UpdateFields( const SCH_SHEET_PATH* aPath, bool aUpdateStyle, b
             else if( id == VALUE_FIELD )
             {
                 if( aResetOtherFields )
-                    SetValue( m_lib_id.GetLibItemName() );      // fetch alias-specific value
+                    SetValue( UnescapeString( m_lib_id.GetLibItemName() ) ); // alias-specific value
                 else
-                    SetValue( libField->GetText() );
+                    SetValue( UnescapeString( libField->GetText() ) );
             }
             else if( id == FOOTPRINT_FIELD )
             {
@@ -803,7 +804,7 @@ void SCH_SYMBOL::UpdateFields( const SCH_SHEET_PATH* aPath, bool aUpdateStyle, b
             else if( id == DATASHEET_FIELD )
             {
                 if( aResetOtherFields )
-                    schField->SetText( GetDatasheet() );        // fetch alias-specific value
+                    schField->SetText( GetDatasheet() ); // alias-specific value
                 else if( aUpdateOtherFields )
                     schField->SetText( libField->GetText() );
             }
@@ -1360,12 +1361,13 @@ void SCH_SYMBOL::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, MSG_PANEL_ITEMS& aList
             aList.push_back( MSG_PANEL_ITEM( msg, GetValue( currentSheet, true ) ) );
 
 #if 0       // Display symbol flags, for debug only
-            aList.push_back( MSG_PANEL_ITEM( _( "flags" ), wxString::Format( "%X",
-                                                                             GetEditFlags() ) ) );
+            aList.push_back( MSG_PANEL_ITEM( _( "flags" ),
+                                             wxString::Format( "%X", GetEditFlags() ) ) );
 #endif
 
             // Display symbol reference in library and library
-            aList.push_back( MSG_PANEL_ITEM( _( "Name" ), GetLibId().GetLibItemName() ) );
+            aList.push_back( MSG_PANEL_ITEM( _( "Name" ),
+                                             UnescapeString( GetLibId().GetLibItemName() ) ) );
 
             if( !m_part->IsRoot() )
             {
@@ -1376,7 +1378,7 @@ void SCH_SYMBOL::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, MSG_PANEL_ITEMS& aList
                 if( parent )
                     msg = parent->GetName();
 
-                aList.push_back( MSG_PANEL_ITEM( _( "Alias of" ), msg ) );
+                aList.push_back( MSG_PANEL_ITEM( _( "Alias of" ), UnescapeString( msg ) ) );
             }
             else if( !m_lib_id.GetLibNickname().empty() )
             {

eeschema/sch_validators.cpp

@@ -52,14 +52,7 @@ SCH_FIELD_VALIDATOR::SCH_FIELD_VALIDATOR(  bool aIsLibEditor, int aFieldId, wxSt
     }
     else if( m_fieldId == SHEETNAME_V )
     {
-        // Does it make sense to exclude the colon and back slash characters?  The forward slash
-        // makes sense because it is used as the separator when generating human readable sheet
-        // paths.
-        excludes += wxT( ":/\\" );
-    }
-    else if( aFieldId == VALUE_FIELD && m_isLibEditor )
-    {
-        excludes += wxT( " :/\\" );
+        excludes += wxT( "/" );
     }
 
     long style = GetStyle();

eeschema/symbol_editor/symbol_edit_frame.cpp

@@ -72,6 +72,7 @@
 #include <wildcards_and_files_ext.h>
 #include <panel_sym_lib_table.h>
 #include <wx/choicdlg.h>
+#include <kicad_string.h>
 
 
 bool SYMBOL_EDIT_FRAME::m_showDeMorgan = false;
@@ -748,10 +749,10 @@ void SYMBOL_EDIT_FRAME::SetCurSymbol( LIB_SYMBOL* aSymbol, bool aUpdateZoom )
         wxString link;
 
         msg.Printf( _( "Symbol %s is derived from %s.  Symbol graphics will not be editable." ),
-                    symbolName,
-                    parentSymbolName );
+                    UnescapeString( symbolName ),
+                    UnescapeString( parentSymbolName ) );
 
-        link.Printf( _( "Open %s" ), parentSymbolName );
+        link.Printf( _( "Open %s" ), UnescapeString( parentSymbolName ) );
 
         wxHyperlinkCtrl* button = new wxHyperlinkCtrl( infobar, wxID_ANY, link, wxEmptyString );
         button->Bind( wxEVT_COMMAND_HYPERLINK, std::function<void( wxHyperlinkEvent& aEvent )>(

eeschema/symbol_editor/symbol_editor.cpp

@@ -43,7 +43,7 @@
 #include <wx/clipbrd.h>
 #include <wx/filedlg.h>
 #include <wx/log.h>
-
+#include <kicad_string.h>
 
 
 /**
@@ -692,17 +692,15 @@ void SYMBOL_EDIT_FRAME::UpdateAfterSymbolProperties( wxString* aOldName )
 {
     wxCHECK( m_symbol, /* void */ );
 
-    wxString  msg;
-    wxString  lib = GetCurLib();
+    wxString lib = GetCurLib();
 
     if( !lib.IsEmpty() && aOldName && *aOldName != m_symbol->GetName() )
     {
         // Test the current library for name conflicts
         if( m_libMgr->SymbolExists( m_symbol->GetName(), lib ) )
         {
-            msg.Printf( _( "The name '%s' conflicts with an existing entry in the library '%s'." ),
-                        m_symbol->GetName(),
-                        lib );
+            wxString msg = wxString::Format( _( "Symbol name '%s' already in use." ),
+                                             UnescapeString( m_symbol->GetName() ) );
 
             DisplayErrorMessage( this, msg );
             m_symbol->SetName( *aOldName );
@@ -1185,14 +1183,14 @@ void SYMBOL_EDIT_FRAME::DisplaySymbolDatasheet()
 
     wxString msg = m_symbol->GetName();
 
-    AppendMsgPanel( _( "Name" ), msg, 8 );
+    AppendMsgPanel( _( "Name" ), UnescapeString( msg ), 8 );
 
     if( m_symbol->IsAlias() )
     {
         LIB_SYMBOL_SPTR parent = m_symbol->GetParent().lock();
 
         msg = parent ? parent->GetName() : _( "Undefined!" );
-        AppendMsgPanel( _( "Parent" ), msg, 8 );
+        AppendMsgPanel( _( "Parent" ), UnescapeString( msg ), 8 );
     }
 
     static wxChar UnitLetter[] = wxT( "?ABCDEFGHIJKLMNOPQRSTUVWXYZ" );

eeschema/symbol_editor/symbol_editor_import_export.cpp

@@ -31,6 +31,7 @@
 #include <symbol_library_manager.h>
 #include <wx/filename.h>
 #include <wx/filedlg.h>
+#include <kicad_string.h>
 
 
 void SYMBOL_EDIT_FRAME::ImportSymbol()
@@ -149,7 +150,7 @@ void SYMBOL_EDIT_FRAME::ExportSymbol()
         if( old_symbol )
         {
             msg.Printf( _( "Symbol %s already exists in library '%s'." ),
-                        symbol->GetName(),
+                        UnescapeString( symbol->GetName() ),
                         fn.GetFullName() );
 
             KIDIALOG errorDlg( this, msg, _( "Confirmation" ), wxOK | wxCANCEL | wxICON_WARNING );
@@ -190,7 +191,9 @@ void SYMBOL_EDIT_FRAME::ExportSymbol()
 
     m_mruPath = fn.GetPath();
 
-    msg.Printf( _( "Symbol %s saved to library '%s'." ), symbol->GetName(), fn.GetFullPath() );
+    msg.Printf( _( "Symbol %s saved to library '%s'." ),
+                UnescapeString( symbol->GetName() ),
+                fn.GetFullPath() );
     SetStatusText( msg );
 
     // See if the user wants it added to a library table (global or project)

eeschema/symbol_editor/symbol_library_manager.cpp

@@ -39,6 +39,7 @@
 #include <list>
 #include <locale_io.h>
 #include <wx/log.h>
+#include <kicad_string.h>
 #include "lib_logger.h"
 
 
@@ -1091,7 +1092,8 @@ bool SYMBOL_LIBRARY_MANAGER::LIB_BUFFER::SaveBuffer(
             }
             catch( const IO_ERROR& ioe )
             {
-                wxLogError( errorMsg, cachedParent->GetName(), aFileName, ioe.What() );
+                wxLogError( errorMsg, UnescapeString( cachedParent->GetName() ), aFileName,
+                            ioe.What() );
                 return false;
             }
 
@@ -1101,7 +1103,8 @@ bool SYMBOL_LIBRARY_MANAGER::LIB_BUFFER::SaveBuffer(
             }
             catch( const IO_ERROR& ioe )
             {
-                wxLogError( errorMsg, newCachedSymbol->GetName(), aFileName, ioe.What() );
+                wxLogError( errorMsg, UnescapeString( newCachedSymbol->GetName() ), aFileName,
+                            ioe.What() );
                 return false;
             }
 
@@ -1121,7 +1124,8 @@ bool SYMBOL_LIBRARY_MANAGER::LIB_BUFFER::SaveBuffer(
             }
             catch( const IO_ERROR& ioe )
             {
-                wxLogError( errorMsg, newCachedSymbol->GetName(), aFileName, ioe.What() );
+                wxLogError( errorMsg, UnescapeString( newCachedSymbol->GetName() ), aFileName,
+                            ioe.What() );
                 return false;
             }
 
@@ -1146,7 +1150,8 @@ bool SYMBOL_LIBRARY_MANAGER::LIB_BUFFER::SaveBuffer(
             }
             catch( const IO_ERROR& ioe )
             {
-                wxLogError( errorMsg, libSymbol->GetName(), aFileName, ioe.What() );
+                wxLogError( errorMsg, UnescapeString( libSymbol->GetName() ), aFileName,
+                            ioe.What() );
                 return false;
             }
 
@@ -1163,7 +1168,8 @@ bool SYMBOL_LIBRARY_MANAGER::LIB_BUFFER::SaveBuffer(
             }
             catch( const IO_ERROR& ioe )
             {
-                wxLogError( errorMsg, libSymbol->GetName(), aFileName, ioe.What() );
+                wxLogError( errorMsg, UnescapeString( libSymbol->GetName() ), aFileName,
+                            ioe.What() );
                 return false;
             }
 
@@ -1183,7 +1189,8 @@ bool SYMBOL_LIBRARY_MANAGER::LIB_BUFFER::SaveBuffer(
                 }
                 catch( const IO_ERROR& ioe )
                 {
-                    wxLogError( errorMsg, derivedSymbol->GetName(), aFileName, ioe.What() );
+                    wxLogError( errorMsg, UnescapeString( derivedSymbol->GetName() ), aFileName,
+                                ioe.What() );
                     return false;
                 }
             }
@@ -1235,7 +1242,7 @@ void SYMBOL_LIBRARY_MANAGER::LIB_BUFFER::GetRootSymbolNames( wxArrayString& aRoo
         if( entry->GetSymbol()->IsAlias() )
             continue;
 
-        aRootSymbolNames.Add( entry->GetSymbol()->GetName() );
+        aRootSymbolNames.Add( UnescapeString( entry->GetSymbol()->GetName() ) );
     }
 }
 

eeschema/symbol_tree_synchronizing_adapter.cpp

@@ -27,6 +27,7 @@
 #include <symbol_library_manager.h>
 #include <symbol_lib_table.h>
 #include <tools/symbol_editor_control.h>
+#include <kicad_string.h>
 
 
 wxObjectDataPtr<LIB_TREE_MODEL_ADAPTER>
@@ -158,10 +159,10 @@ void SYMBOL_TREE_SYNCHRONIZING_ADAPTER::updateLibrary( LIB_TREE_NODE_LIB& aLibNo
         for( auto nodeIt = aLibNode.m_Children.begin(); nodeIt != aLibNode.m_Children.end(); /**/ )
         {
             auto aliasIt = std::find_if( aliases.begin(), aliases.end(),
-                                         [&] ( const LIB_SYMBOL* a )
-                                         {
-                                             return a->GetName() == (*nodeIt)->m_Name;
-                                         } );
+                    [&] ( const LIB_SYMBOL* a )
+                    {
+                        return a->GetName() == (*nodeIt)->m_LibId.GetLibItemName();
+                    } );
 
             if( aliasIt != aliases.end() )
             {
@@ -217,9 +218,9 @@ void SYMBOL_TREE_SYNCHRONIZING_ADAPTER::GetValue( wxVariant& aVariant, wxDataVie
             node->m_Name = m_frame->GetCurSymbol()->GetLibId().GetLibItemName();
 
         if( node->m_Pinned )
-            aVariant = GetPinningSymbol() + node->m_Name;
+            aVariant = GetPinningSymbol() + UnescapeString( node->m_Name );
         else
-            aVariant = node->m_Name;
+            aVariant = UnescapeString( node->m_Name );
 
         // mark modified items with an asterisk
         if( node->m_Type == LIB_TREE_NODE::LIB )

eeschema/symbol_viewer_frame.cpp

@@ -55,6 +55,7 @@
 #include <wx/listbox.h>
 
 #include <default_values.h>
+#include <kicad_string.h>
 
 // Save previous symbol library viewer state.
 wxString SYMBOL_VIEWER_FRAME::m_libraryName;
@@ -361,8 +362,8 @@ void SYMBOL_VIEWER_FRAME::updatePreviewSymbol()
         if( parent )
             parentName = parent->GetName();
 
-        AppendMsgPanel( _( "Name" ), m_previewItem->GetName() );
-        AppendMsgPanel( _( "Parent" ),  parentName );
+        AppendMsgPanel( _( "Name" ), UnescapeString( m_previewItem->GetName() ) );
+        AppendMsgPanel( _( "Parent" ),  UnescapeString( parentName ) );
         AppendMsgPanel( _( "Description" ), m_previewItem->GetDescription() );
         AppendMsgPanel( _( "Keywords" ), m_previewItem->GetKeyWords() );
     }

eeschema/tools/symbol_editor_edit_tool.cpp

@@ -529,7 +529,7 @@ void SYMBOL_EDITOR_EDIT_TOOL::editFieldProperties( LIB_FIELD* aField )
     if( dlg.ShowQuasiModal() != wxID_OK )
         return;
 
-    wxString newFieldValue = LIB_ID::FixIllegalChars( dlg.GetText() );
+    wxString newFieldValue = EscapeString( dlg.GetText(), CTX_LIBID );
     wxString oldFieldValue = aField->GetFullText( m_frame->GetUnit() );
     bool     renamed = aField->GetId() == VALUE_FIELD && newFieldValue != oldFieldValue;
 
@@ -557,9 +557,8 @@ void SYMBOL_EDITOR_EDIT_TOOL::editFieldProperties( LIB_FIELD* aField )
 
 void SYMBOL_EDITOR_EDIT_TOOL::editSymbolProperties()
 {
-    LIB_SYMBOL*   symbol = m_frame->GetCurSymbol();
-    bool          partLocked = symbol->UnitsLocked();
-    wxString      oldName = symbol->GetName();
+    LIB_SYMBOL* symbol = m_frame->GetCurSymbol();
+    bool        partLocked = symbol->UnitsLocked();
 
     m_toolMgr->RunAction( ACTIONS::cancelInteractive, true );
     m_toolMgr->RunAction( EE_ACTIONS::clearSelection, true );

include/lib_id.h

@@ -220,7 +220,7 @@ public:
      * @param aLib True if we are checking library names, false if we are checking item names
      * @return the corrected version of \a aLibItemName.
      */
-    static UTF8 FixIllegalChars( const UTF8& aLibItemName, bool aLib = false );
+    static UTF8 FixIllegalChars( const UTF8& aLibItemName, bool aLib );
 
     /**
      * Looks for characters that are illegal in library nicknames.

pcbnew/dialogs/panel_fp_lib_table.cpp

@@ -896,7 +896,7 @@ void PANEL_FP_LIB_TABLE::browseLibrariesHandler( wxCommandEvent& event )
     for( const wxString& filePath : files )
     {
         wxFileName fn( filePath );
-        wxString   nickname = LIB_ID::FixIllegalChars( fn.GetName() );
+        wxString   nickname = LIB_ID::FixIllegalChars( fn.GetName(), true );
         bool       doAdd    = true;
 
         if( cur_model()->ContainsNickname( nickname ) )