fix: support all characters for suggestion char, fix #2385

packages/core/src/index.ts

@@ -21,6 +21,7 @@ export * from './pasteRules/markPasteRule'
 export * from './pasteRules/textPasteRule'
 
 export * from './utilities/callOrReturn'
+export * from './utilities/escapeForRegEx'
 export * from './utilities/mergeAttributes'
 
 export * from './helpers/combineTransactionSteps'

packages/core/src/utilities/escapeForRegEx.ts

@@ -0,0 +1,4 @@
+// source: https://stackoverflow.com/a/6969486
+export function escapeForRegEx(string: string): string {
+  return string.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&')
+}