message: Fix a regexp.
diff: @@ -142,7 +142,7 @@ export class Completer implements vscode.CompletionItemProvider {
  let provider: IProvider | undefined
  switch (type) {
  case 'citation':
  - reg = /(?:\\[a-zA-Z]*[Cc]ite[a-zA-Z]*\*?(?:\([^[)]*\)){0,2}(?:(?:\[[^[\]]*\])*(?:{[^{}]*})?)*{([^}]*)$)|(?:\\bibentry{([^}]*)$)/
  + reg = /(?:\\[a-zA-Z]*[Cc]ite[a-zA-Z]*\*?(?:\([^[)]*\)){0,2}(?:\[[^[\]]*\]|{[^{}]*})*{([^}]*)$)|(?:\\bibentry{([^}]*)$)/
  provider = this.citation
  break
  case 'reference':
  