(in-package txt2web)

(defvar *delivered* nil)

(defun src-file (filename)
  (uiop/pathname:merge-pathnames*
   filename
   (asdf:system-source-directory :txt2web)))

(defun read-progn-from-string (string)
  `(progn
     ,@(read-code-from-string string)))

(defun read-code-from-string (string)
  (with-input-from-string (in string)
    (let ((*package* *package*))
      (loop :for form := (read in nil :eof)
         :until (eq form :eof)
         :when (eq (first form) 'cl:in-package)
         :do (setf *package* (find-package (second form)))
         :else
         :collect form))))

(defun load-src (filename)
  (alexandria:read-file-into-string (src-file filename) :external-format :utf-8))

;;;; For testing

(defvar *dont-expand* '(setf))

(defun should-expand (form)
  (cond ((not (listp form))
         nil)
        ((listp (car form))
         t)
        ((member (car form) *dont-expand*)
         nil)
        ((not (symbolp (car form)))
         nil)
        ((not (eq (symbol-package (car form))
                  (find-package :parenscript)))
         t)))

(defun ps-macroexpand-all (form)
  (if (should-expand form)
      (let ((form (ps::ps-macroexpand form)))
        (if (listp form)
            (mapcar #'ps-macroexpand-all form)
            form))
      form))