（四）接受被救助方要求其他救助方参与救助作业的合理要求，但是要求不合理的，原救助方的救助报酬金额不受影响。
There is a semantic difference between the pattern attribute and regexes as experienced by regular programming languages. Because inputs are clearly validating input, patterns default to matching the entire input string. However, normal regex engines usually assume you are searching for the string and matches any substring, though the details are confusing and vary between implementations. That means that unless you tell the engine to always match the entire string with your regular expression for emails, they will happily accept any garbage as long as it contains an email address somewhere in there. Since this would be a dangerous default, the semantics are to always match the entire input in patterns.
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Ранее в зоопарке Китая стали продавать мочу сибирских тигров для лечения. На этикетке сказано, что моча лечит ревматоидный артрит, помогает при растяжении связок и мышечных болях.
Фото: Seth Herald / Reuters