A better approach is to identify the allowable characters and allow only those characters.

更好的方法是识别可允许的字符并仅允许那些字符。

youdao

This sequence is a subset of the allowable structures in a reference topic, which allows any sequence of syntax, properties, and sections.

此顺序是在引用主题中允许结构的子集，它允许语法、属性和部分的任何顺序。

youdao

Because jobs can also be created with intervals of allowable execution, if the job is not retrieved during a validity period, it is not run.

由于也可以按允许执行的间隔创建作业，因此如果未在有效期内检索作业，则它不会运行。

youdao

And UK law recognised that: even to the extent that a bribe was an allowable expense on a corporate tax return.

FORBES: A Christmas Tip for the Postman is now Bribery

Five more are under construction or approved by the J-Class Association, which requires class members to build the boats according to pre-1939 plans with a few allowable deviations.

FORBES: Magazine Article

Something entirely normal in Russia, something that is almost unheard of in the general experience in the UK. Indeed, it used to be true that for a UK company then bribes paid to foreigners were a tax allowable expense but something that you went to jail for if you tried it on in England.

FORBES: Champagne, Caviar and Dancing Girls at the Telecoms Show?