[英]how to validate sentence of minimum 3 words and no URL allowed using regular expression
我想创建一个正则表达式来验证至少3个单词并且不允许使用URL:
这是我到目前为止至少三个单词的正则表达式:
"minimumThreeWordsAndNoURL": {
"regex": /^/\b\w{1,2}\b/$/,
"alertText": "Minimum of 3 words and no URL allowed"
},
这是URL的正则表达式
"url": {
"regex": /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i,
"alertText": "* Invalid URL"
},
如何将其组合在一起,以便在文本区域中需要3个单词且不允许使用URL?
Chaitanya提出了一个正确的观点:除非您正在玩Regex Golf或完成一项家庭作业,否则您无需将所有功能都塞进一个regex中。 使用一对正则表达式意味着您的URL匹配器将更易于阅读,并且您的代码通常也将更易于理解。
类似于以下内容(带有不完整的url匹配器)将为您提供大部分帮助:
function validate(str) {
var phrase = /^(\b\S+\b\s?){3,}$/,
url = /^((http|https|ftp):\/\/)?\w+(\.\w+)+(\/\w+)*(\?(\w+=\w+)(&\w+=\w+)*)?$/;
return phrase.test(str) && !url.test(str);
}
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