Initial import of Skribe 1.2d.

Initial import of Skribe 1.2d.


git-archimport-id: lcourtes@laas.fr--2004-libre/skribilo--devel--1.2--base-0

1 files changed, 238 insertions, 0 deletions

diff --git a/src/common/lib.scm b/src/common/lib.scm
new file mode 100644
index 0000000..b0fa2d0
--- /dev/null
+++ b/src/common/lib.scm
@@ -0,0 +1,238 @@
+;*=====================================================================*/
+;*    serrano/prgm/project/skribe/src/common/lib.scm                   */
+;*    -------------------------------------------------------------    */
+;*    Author      :  Manuel Serrano                                    */
+;*    Creation    :  Wed Sep 10 11:57:54 2003                          */
+;*    Last change :  Wed Oct 27 12:16:40 2004 (eg)                     */
+;*    Copyright   :  2003-04 Manuel Serrano                            */
+;*    -------------------------------------------------------------    */
+;*    The Scheme independent lib part.                                 */
+;*    -------------------------------------------------------------    */
+;*    Implementation: @label lib@                                      */
+;*    bigloo: @path ../bigloo/lib.bgl@                                 */
+;*=====================================================================*/
+
+;*---------------------------------------------------------------------*/
+;*    engine-custom-add! ...                                           */
+;*---------------------------------------------------------------------*/
+(define (engine-custom-add! e id val)
+   (let ((old (engine-custom e id)))
+      (if (unspecified? old)
+	  (engine-custom-set! e id (list val))
+	  (engine-custom-set! e id (cons val old)))))
+
+;*---------------------------------------------------------------------*/
+;*    find-markup-ident ...                                            */
+;*---------------------------------------------------------------------*/
+(define (find-markup-ident ident)
+   (let ((r (find-markups ident)))
+      (if (or (pair? r) (null? r))
+	  r
+	  '())))
+
+;*---------------------------------------------------------------------*/
+;*    container-search-down ...                                        */
+;*---------------------------------------------------------------------*/
+(define (container-search-down pred obj)
+   (with-debug 4 'container-search-down
+      (debug-item "obj=" (find-runtime-type obj))
+      (let loop ((obj (markup-body obj)))
+	 (cond
+	    ((pair? obj)
+	     (apply append (map (lambda (o) (loop o)) obj)))
+	    ((container? obj)
+	     (let ((rest (loop (markup-body obj))))
+		(if (pred obj)
+		    (cons obj rest)
+		    rest)))
+	    ((pred obj)
+	     (list obj))
+	    (else
+	     '())))))
+       
+;*---------------------------------------------------------------------*/
+;*    search-down ...                                                  */
+;*---------------------------------------------------------------------*/
+(define (search-down pred obj)
+   (with-debug 4 'search-down
+      (debug-item "obj=" (find-runtime-type obj))
+      (let loop ((obj (markup-body obj)))
+	 (cond
+	    ((pair? obj)
+	     (apply append (map (lambda (o) (loop o)) obj)))
+	    ((markup? obj)
+	     (let ((rest (loop (markup-body obj))))
+		(if (pred obj)
+		    (cons obj rest)
+		    rest)))
+	    ((pred obj)
+	     (list obj))
+	    (else
+	     '())))))
+       
+;*---------------------------------------------------------------------*/
+;*    find-down ...                                                    */
+;*---------------------------------------------------------------------*/
+(define (find-down pred obj)
+   (with-debug 4 'find-down
+      (debug-item "obj=" (find-runtime-type obj))
+      (let loop ((obj obj))
+	 (cond
+	    ((pair? obj)
+	     (apply append (map (lambda (o) (loop o)) obj)))
+	    ((markup? obj)
+	     (debug-item "loop=" (find-runtime-type obj)
+			 " " (markup-ident obj))
+	     (if (pred obj)
+		 (list (cons obj (loop (markup-body obj))))
+		 '()))
+	    (else
+	     (if (pred obj)
+		 (list obj)
+		 '()))))))
+       
+;*---------------------------------------------------------------------*/
+;*    find1-down ...                                                   */
+;*---------------------------------------------------------------------*/
+(define (find1-down pred obj)
+   (with-debug 4 'find1-down
+      (let loop ((obj obj)
+		 (stack '()))
+	 (debug-item "obj=" (find-runtime-type obj)
+		     " " (if (markup? obj) (markup-markup obj) "???")
+		     " " (if (markup? obj) (markup-ident obj) ""))
+	 (cond
+	    ((memq obj stack)
+	     (skribe-error 'find1-down "Illegal cyclic object" obj))
+	    ((pair? obj)
+	     (let liip ((obj obj))
+		(cond
+		   ((null? obj)
+		    #f)
+		   (else
+		    (or (loop (car obj) (cons obj stack))
+			(liip (cdr obj)))))))
+	    ((pred obj)
+	     obj)
+	    ((markup? obj)
+	     (loop (markup-body obj) (cons obj stack)))
+	    (else
+	     #f)))))
+
+;*---------------------------------------------------------------------*/
+;*    find-up ...                                                      */
+;*---------------------------------------------------------------------*/
+(define (find-up pred obj)
+   (let loop ((obj obj)
+	      (res '()))
+      (cond
+	 ((not (ast? obj))
+	  res)
+	 ((pred obj)
+	  (loop (ast-parent obj) (cons obj res)))
+	 (else
+	  (loop (ast-parent obj) (cons obj res))))))
+
+;*---------------------------------------------------------------------*/
+;*    find1-up ...                                                     */
+;*---------------------------------------------------------------------*/
+(define (find1-up pred obj)
+   (let loop ((obj obj))
+      (cond
+	 ((not (ast? obj))
+	  #f)
+	 ((pred obj)
+	  obj)
+	 (else
+	  (loop (ast-parent obj))))))
+
+;*---------------------------------------------------------------------*/
+;*    ast-document ...                                                 */
+;*---------------------------------------------------------------------*/
+(define (ast-document m)
+   (find1-up document? m))
+
+;*---------------------------------------------------------------------*/
+;*    ast-chapter ...                                                  */
+;*---------------------------------------------------------------------*/
+(define (ast-chapter m)
+   (find1-up (lambda (n) (is-markup? n 'chapter)) m))
+
+;*---------------------------------------------------------------------*/
+;*    ast-section ...                                                  */
+;*---------------------------------------------------------------------*/
+(define (ast-section m)
+   (find1-up (lambda (n) (is-markup? n 'section)) m))
+
+;*---------------------------------------------------------------------*/
+;*    the-body ...                                                     */
+;*    -------------------------------------------------------------    */
+;*    Filter out the options                                           */
+;*---------------------------------------------------------------------*/
+(define (the-body opt+)
+   (let loop ((opt* opt+)
+	      (res '()))
+      (cond
+	 ((null? opt*)
+	  (reverse! res))
+	 ((not (pair? opt*))
+	  (skribe-error 'the-body "Illegal body" opt*))
+	 ((keyword? (car opt*))
+	  (if (null? (cdr opt*))
+	      (skribe-error 'the-body "Illegal option" (car opt*))
+	      (loop (cddr opt*) res)))
+	 (else
+	  (loop (cdr opt*) (cons (car opt*) res))))))
+
+;*---------------------------------------------------------------------*/
+;*    the-options ...                                                  */
+;*    -------------------------------------------------------------    */
+;*    Returns an list made of options. The OUT argument contains       */
+;*    keywords that are filtered out.                                  */
+;*---------------------------------------------------------------------*/
+(define (the-options opt+ . out)
+   (let loop ((opt* opt+)
+	      (res '()))
+      (cond
+	 ((null? opt*)
+	  (reverse! res))
+	 ((not (pair? opt*))
+	  (skribe-error 'the-options "Illegal options" opt*))
+	 ((keyword? (car opt*))
+	  (cond
+	     ((null? (cdr opt*))
+	      (skribe-error 'the-options "Illegal option" (car opt*)))
+	     ((memq (car opt*) out)
+	      (loop (cdr opt*) res))
+	     (else
+	      (loop (cdr opt*)
+		    (cons (list (car opt*) (cadr opt*)) res)))))
+	 (else
+	  (loop (cdr opt*) res)))))
+
+;*---------------------------------------------------------------------*/
+;*    list-split ...                                                   */
+;*---------------------------------------------------------------------*/
+(define (list-split l num . fill)
+   (let loop ((l l)
+	      (i 0)
+	      (acc '())
+	      (res '()))
+      (cond
+	 ((null? l)
+	  (reverse! (cons (if (or (null? fill) (= i num))
+			      (reverse! acc)
+			      (append! (reverse! acc)
+				       (make-list (- num i) (car fill))))
+			  res)))
+	 ((= i num)
+	  (loop l
+		0
+		'()
+		(cons (reverse! acc) res)))
+	 (else
+	  (loop (cdr l)
+		(+ i 1)
+		(cons (car l) acc)
+		res)))))
+