added some doc

diff --git a/helm/software/components/library/librarian.mli b/helm/software/components/library/librarian.mli
index 63c900036f89d92f4dd98fd0a4cdcc5195ced80e..c682579c2352845cb4886cf87d462a6d291a94e7 100644 (file)
--- a/helm/software/components/library/librarian.mli
+++ b/helm/software/components/library/librarian.mli
@@ -1,7 +1,42 @@
+(* Copyright (C) 2004-2008, HELM Team.
+ * 
+ * This file is part of HELM, an Hypertextual, Electronic
+ * Library of Mathematics, developed at the Computer Science
+ * Department, University of Bologna, Italy.
+ * 
+ * HELM is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * HELM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with HELM; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA  02111-1307, USA.
+ * 
+ * For details, see the HELM World-Wide-Web page,
+ * http://helm.cs.unibo.it/
+ *)
+
 exception NoRootFor of string
 
+(* make a relative path absolute *)
 val absolutize: string -> string 
 
+(* a root file is a text, line oriented, file containing pairs separated by
+ * the '=' character. Example:
+ *
+ *  baseuri = cic:/foo/bar
+ *  include_paths = ../baz ../../pippo
+ *
+ * spaces at the end/begin of the line and around '=' are ignored,
+ * multiple spaces in the middle of an item are shrinked to one.
+ *)
 val load_root_file: string -> (string*string) list
 
 (* baseuri_of_script ?(inc:REG[matita.includes]) fname 
@@ -12,12 +47,18 @@ val load_root_file: string -> (string*string) list
 val baseuri_of_script: 
   include_paths:string list -> string -> string * string * string * string
 
+(* given a baseuri and a file name (relative to its root)
+ * returns a baseuri:
+ *    mk_baseuri "cic:/matita" "nat/plus.ma" -> "cic:/matita/nat/plus"
+ *)    
 val mk_baseuri: string -> string -> string
 
-(* finds all the roots files in the specified dir *)
+(* finds all the roots files in the specified dir, roots are
+ * text files, readable by the user named 'root'
+ *)
 val find_roots_in_dir: string -> string list
 
-(* make *)
+(* make implementation *)
 type options = (string * string) list
 
 module type Format =
@@ -42,5 +83,12 @@ module Make :
       val make : string -> F.source_object list ->  bool
     end
 
+(* deps are made with scripts names, for example lines like
+ *
+ *   nat/plus.ma nat/nat.ma logic/equality.ma
+ *
+ * state that plus.ma needs nat and equality
+ *)
 val load_deps_file: string -> (string * string list) list
 val write_deps_file: string -> (string * string list) list -> unit
+