Fit: Ignore complex_state, if no complex function is selected; closes #144

src/gui_qt/lib/codeeditor.py

@@ -1,5 +1,6 @@
 # CodeEditor based on QT example, Python syntax highlighter found on Python site
-
+import typing
+from ast import parse
 
 from ..Qt import QtGui, QtCore, QtWidgets
 
@@ -184,6 +185,7 @@ class CodeEditor(QtWidgets.QPlainTextEdit):
         self.update_width_linenumber(0)
 
         self.highlight = PythonHighlighter(self.document())
+        self.textChanged.connect(self._check_syntax)
 
     def keyPressEvent(self, evt):
         if evt.key() == QtCore.Qt.Key_Tab:
@@ -260,3 +262,23 @@ class CodeEditor(QtWidgets.QPlainTextEdit):
             extra_selections.append(selection)
 
         self.setExtraSelections(extra_selections)
+
+    def color_line(self, color):
+        # is_valid, exception = self._check_syntax()
+        # if is_valid == 1:
+        doc = self.document()
+        print(doc.findBlockByLineNumber(color))
+
+    def _check_syntax(self) -> (int, tuple[typing.Any]):
+        # Compile into an AST and check for syntax errors.
+        try:
+            _ = parse(self.toPlainText(), filename='<string>')
+        except SyntaxError as e:
+            print('SyntaxError', e, e.args[0], e.lineno, e.offset, e.text)
+            self.color_line(e.lineno)
+            return 1, (e.lineno, e.offset)
+        except Exception as e:
+            print('Unexpected error', e)
+            return 2, (e.args[0],)
+
+        return 0, tuple()