We have a SaaS application requirement to allow a user responsible for building a CMS site to define up to 10 custom fields in a form. As part of this field definition we want to add a field validation option which we will store (and apply at runtime) as a reg-ex.We have a SaaS application requirement to allow
阅读背景：
用于生成正则表达式的最终用户工具
来源：互联网
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