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(define-module (web query)
:use-module (hnh util)
:use-module (srfi srfi-1)
:use-module (srfi srfi-71)
:use-module (web uri)
:export (parse-query))
(define* (parse-query query-string optional: (encoding "UTF-8"))
(unless (or (not query-string) (string-null? query-string))
(fold (lambda (str list)
;; only split on the first equal.
;; Does HTTP allow multiple equal signs in a data field?
(let ((key val
(cond ((string-index str #\=)
=> (lambda (idx)
(values (uri-decode (substring str 0 idx) encoding: encoding)
(uri-decode (substring str (1+ idx)) encoding: encoding))))
(else (let ((v (uri-decode str encoding: encoding)))
(values v v))))))
(cons* (-> key string->symbol symbol->keyword) val list)))
'() (string-split query-string #\&))))
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