It can consist of literal characters and regular expression substitutions.

它可能由文本字符和正则表达式替换组成。

youdao

Returns the formatted string, optionally including prompt and literal characters.

返回带格式的字符串，还可以选择包含密码字符。

youdao

The value attribute may be literal characters, variables, or variables plus a customized regular expression.

value属性可以是文本字符、变量或变量外加一个定制的正则表达式。

youdao

"So much of David Bowie's work has involved characters, masks and disguises, both literal and metaphorical, " says Mr. Pegg.

WSJ: Bowie Is Back | 'David Bowie Is' at the V&A