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#!/usr/bin/clisp
(load "helper.lisp")
(load "config.lisp")
(load "builtin.lisp")
(defun lex (input)
(let ((pos (search +temper-open+ input)))
(if (null pos)
(list (list 'string input))
(let* ((before (subseq input 0 pos))
(input (subseq input pos))
(end-pos (search +temper-close+ input))
(code (subseq input +temper-close-len+ end-pos))
(input (subseq input (+ end-pos +temper-close-len+))))
(append
(list
(list 'string before)
(if (equal (char code 0) +temper-interpolate+)
(list 'interpolation (subseq code 1))
(list 'code code)))
(lex input))))))
; (defun temper-buf-push (&rest strings)
; (setf *temper-buf
(defun tokens-to-code-string (tokens)
(apply #'concatenate 'string
(map
'list
#'(lambda (token)
(let ((token-type (first token))
(token-content (second token)))
(ecase token-type
('code token-content)
('interpolation
(format nil "~S"
`(setf *temper-buf*
(concatenate 'string
*temper-buf*
(format nil "~A" ,(read-from-string token-content))))))
('string
(format nil "~S"
`(setf *temper-buf*
(concatenate 'string *temper-buf* ,(string-trim '(#\linefeed) token-content))))))))
tokens)))
(defvar *temper-buf* "")
(defun generate (tokens &rest args)
`(let ,(apply #'rest-keys args)
(progn
(eval ,(read-from-string
(concatenate 'string
"(progn "
(tokens-to-code-string tokens)
")"))))))
(defun render-stream (stream &rest args)
(setq tokens (lex (read-all-stream stream)))
(eval (apply #'generate (cons tokens args))))
(defun render (filename &rest args)
(with-open-file (stream filename)
(apply #'render-stream (cons stream args))))
(princ (render-stream *standard-input* 'foo "bon" 'bar "jour"))
; (princ (render "test.html" 'foo "bon" 'bar "jour"))
; (print (make-index "d"))
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