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(in-package #:str)
(declaim (optimize speed))
(declaim (ftype (function ((or pathname string)) (values simple-string &optional)) read-file))
(declaim (ftype (function (simple-string simple-string) (values (cons simple-string) &optional)) split))
(declaim (ftype (function ((or null (cons character))) (values simple-string &optional)) from-list))
(defun read-file (path)
(with-open-file (file path)
(let* ((size (file-length file))
(buf (make-string size)))
(read-sequence buf file)
buf)))
(defun split (input delimiter)
(labels ((split-rec (result start)
(let ((next (search delimiter input :start2 start)))
(if next
(split-rec (queue:add result (subseq input start next))
(min (the fixnum (+ (length delimiter) next))
(the fixnum (length input))))
(queue:add result (subseq input start next))))))
(queue:to-list (split-rec (queue:new) 0))))
(defun from-list (lst)
(let ((str (make-string (length lst)))
(i 0))
(dolist (item lst)
(setf (char str i) item)
(incf i))
str))
(defun underscore->hyphen (str)
(let ((result (make-string-output-stream)))
(dotimes (i (length str))
(if (char= #\_ (char str i))
(format result "-")
(format result "~a" (char str i))))
(get-output-stream-string result)))
(defun pascal->kebab (str)
(let ((result (make-string-output-stream)))
(dotimes (i (length str))
(if (and (> i 0) (upper-case-p (char str i)))
(format result "-~a" (char str i))
(format result "~a" (char str i))))
(get-output-stream-string result)))
(defun upcase->pascal (str)
(let ((result (make-string-output-stream)))
(dotimes (i (length str))
(if (and (< 0 i)
(upper-case-p (char str i))
(not (lower-case-p (char str (1- i))))
(or (= i (1- (length str)))
(not (lower-case-p (char str (1+ i))))))
(format result "~a" (char-downcase (char str i)))
(format result "~a" (char str i))))
(get-output-stream-string result)))
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