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[lml.git] / files.lisp

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+;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
+;;;;
+;;;; Name:          files.cl
+;;;; Purpose:       File and directory functions for LML
+;;;; Programmer:    Kevin M. Rosenberg
+;;;; Date Started:  Aug 2002
+;;;;
+;;;; This file, part of LML, is Copyright (c) 2002 by Kevin M. Rosenberg
+;;;;
+;;;; LML users are granted the rights to distribute and use this software
+;;;; as governed by the terms of the GNU General Public License v2
+;;;; (http://www.gnu.org/licenses/gpl.html)
+;;;; *************************************************************************
+
+(declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))
+(in-package :lml)
+
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (defvar *output-dir* nil)
+  (defvar *sources-dir* nil)
+  )
+
+(defvar *html-output* *standard-output*)
+
+(defmacro lml-file-name (file &optional (type :source))
+  (let ((f file))
+    (when (and (consp f) (eql (car f) 'cl:quote))
+      (setq f (cadr f)))
+    (when (symbolp f)
+      (setq f (string-downcase (symbol-name f))))
+    (when (stringp f)
+      (unless (position #\. f)
+       (setq f (concatenate 'string f ".html"))))
+    (if *sources-dir*
+       (make-pathname :defaults (ecase type
+                                  (:source *sources-dir*)
+                                  (:output *output-dir*))
+                      :name `,(pathname-name f)
+                      :type `,(pathname-type f))
+      (if (stringp f)
+         (parse-namestring f)
+       f))))
+
+(defmacro with-dir ((output-dir &key sources) &body body)
+  (when (stringp output-dir)
+    (setq output-dir (parse-namestring output-dir)))
+  (unless sources
+    (setq sources output-dir))
+  `(let ((*output-dir* ,output-dir)
+        (*sources-dir* ,sources))
+     ,@body))
+
+(defun lml-load-path (file)
+  (if (probe-file file)
+      (with-open-file (in file :direction :input)
+        (do ((form (read in nil 'lml::eof) (read in nil 'lml::eof)))
+           ((eq form 'lml::eof))
+         (eval form)))
+    (format *trace-output* "Warning: unable to load LML file ~S" file)))
+
+(defun process-dir (dir &key sources)
+  (with-dir (dir :sources sources)
+    (let ((lml-files (directory
+                     (make-pathname :defaults *sources-dir*
+                                    :name :wild
+                                    :type "lml"))))
+      (dolist (file lml-files)
+       (format *trace-output* "~&; Processing ~A~%" file)
+       (lml-load-path file)))))
+
+(defun lml-load (file)
+  (lml-load-path (eval `(lml-file-name ,file :source))))
+
+(defun include-file (file)
+  (print-file-contents file *html-output*))