Fix unwanted completion list (fix #468)

CHANGELOG.md

@@ -18,6 +18,7 @@ Change Log
 ### Fixes
 
 - Fix an issue where some type of script file cannot be opened because of “unidentified developer” alert even it was made on CotEditor.
+- Fix an issue where unwanted completion list was displayed by auto-completion when after typing a symbol character.
 
 
 

CotEditor/Sources/CEEditorView.m

@@ -349,6 +349,9 @@
 - (nonnull NSArray<NSString *> *)textView:(nonnull NSTextView *)textView completions:(nonnull NSArray<NSString *> *)words forPartialWordRange:(NSRange)charRange indexOfSelectedItem:(nullable NSInteger *)index
 // ------------------------------------------------------
 {
+    // do nothing if completion is not suggested from the typed characters
+    if (charRange.length == 0) { return @[]; }
+    
     NSMutableOrderedSet<NSString *> *candidateWords = [NSMutableOrderedSet orderedSet];
     NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
     NSString *partialWord = [[textView string] substringWithRange:charRange];