Merge pull request #8977 from weseek/fix/error-handling-in-fold-drawio

fix: Handle error when folding drawio blocks

packages/editor/src/client/services/use-codemirror-editor/utils/fold-drawio.ts

@@ -3,42 +3,61 @@ import { useEffect } from 'react';
 import { foldEffect } from '@codemirror/language';
 import type { EditorView } from '@codemirror/view';
 
+
 export type FoldDrawio = void;
 
 const findAllDrawioSection = (view?: EditorView) => {
   if (view == null) {
     return;
   }
-  const lineBeginPartOfDrawioRE = /^```(\s.*)drawio$/;
-  const lineNumbers: number[] = [];
-  // repeat the process in each line from the top to the bottom in the editor
-  for (let i = 1, e = view.state.doc.lines; i <= e; i++) {
-    // get each line text
-    const lineTxt = view.state.doc.line(i).text;
-    const match = lineBeginPartOfDrawioRE.exec(lineTxt);
-    if (match) {
-      lineNumbers.push(i);
+
+  try {
+    const lineBeginPartOfDrawioRE = /^```(\s.*)drawio$/;
+    const lineNumbers: number[] = [];
+    // repeat the process in each line from the top to the bottom in the editor
+    for (let i = 1, e = view.state.doc.lines; i <= e; i++) {
+      // get each line text
+      const lineTxt = view.state.doc.line(i).text;
+      const match = lineBeginPartOfDrawioRE.exec(lineTxt);
+      if (match) {
+        lineNumbers.push(i);
+      }
+    }
+    return lineNumbers;
+  }
+  catch (err) {
+    if (err instanceof Error) {
+      // eslint-disable-next-line no-console
+      console.warn(err.toString());
     }
   }
-  return lineNumbers;
 };
 
 const foldDrawioSection = (lineNumbers?: number[], view?: EditorView) => {
   if (view == null || lineNumbers == null) {
     return;
   }
-  lineNumbers.forEach((lineNumber) => {
-    // get the end of the lines containing '''drawio
-    const from = view.state.doc.line(lineNumber).to;
-    // get the end of the lines containing '''
-    const to = view.state.doc.line(lineNumber + 2).to;
-    view?.dispatch({
-      effects: foldEffect.of({
-        from,
-        to,
-      }),
+
+  try {
+    lineNumbers.forEach((lineNumber) => {
+      // get the end of the lines containing '''drawio
+      const from = view.state.doc.line(lineNumber).to;
+      // get the end of the lines containing '''
+      const to = view.state.doc.line(lineNumber + 2).to;
+      view?.dispatch({
+        effects: foldEffect.of({
+          from,
+          to,
+        }),
+      });
     });
-  });
+  }
+  catch (err) {
+    if (err instanceof Error) {
+    // eslint-disable-next-line no-console
+      console.warn(err.toString());
+    }
+  }
 };
 
 export const useFoldDrawio = (view?: EditorView): FoldDrawio => {