+(in-package #:docgen-pkg)
+
+(defun fire-error (msg) (error (make-instance 'docgen:validation-failure :msg msg)))
+
+(defun doc->ast (pkg)
+ (labels
+ ((validate (strs)
+ (mapcar
+ (lambda (str)
+ (cond
+ ((< 120 (length str)) (fire-error (format nil "Package description longer than 120 characters: ~A" str)))
+ ((cl-ppcre:scan "^ " str) (fire-error (format nil "Package description line started with space: ~A" str)))
+ ((cl-ppcre:scan " $" str) (fire-error (format nil "Package description line ended with space: ~A" str)))))
+ strs))
+ (combine (strs)
+ (cond
+ ((not strs) (list ""))
+ ((string= "" (car strs)) (cons "" (combine (cdr strs))))
+ (t
+ (let
+ ((rest (combine (cdr strs))))
+ (cons (format nil "~A~A~A" (car strs) (if (string/= "" (car rest)) " " "") (car rest)) (cdr rest)))))))
+ (let
+ ((lines (cl-ppcre:split "\\n" (documentation pkg t))))
+ (validate lines)
+ (let
+ ((paragraphs (combine lines)))
+ (when (< 120 (length (first paragraphs))) (fire-error "First package paragraph is longer than 120 characters"))
+ (when (find "" paragraphs :test #'string=) (fire-error "Package description has two empty lines in it"))
+ (cons (package-name pkg) paragraphs)))))
+
+(defun ast->md (ast)
+ (format nil "# Package ~A~%~%~{~A~^~%~%~}"
+ (car ast)
+ (cdr ast)))