(alexandria.0.dev:starts-with object sequence &key (test #'eql)
(key #'identity)) | Function: Returns true if SEQUENCE is a sequence whose first element is EQL to OBJECT. Returns NIL if the SEQUENCE is not a sequence or is an empty sequence.
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(alexandria.0.dev:starts-with-subseq prefix sequence &rest args &key
(return-suffix nil) &allow-other-keys) | Function: Test whether the first elements of SEQUENCE are the same (as per TEST) as the elements of PREFIX. If RETURN-SUFFIX is T the functions returns, as a second value, a displaced array pointing to the sequence after PREFIX.
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(url-rewrite:starts-with-scheme-p string) | Function: Checks whether the string STRING represents a URL which starts with a scheme, i.e. something like 'https://' or 'mailto:'.
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