version 0.7.1

[helm.git] / helm / matita / matitaMisc.mli

diff --git a/helm/matita/matitaMisc.mli b/helm/matita/matitaMisc.mli
index 7a9ac0fc6f13aea57b535197b2302a88ce9c3abd..c5ff2ace68046907b6524b252d0b289d6d06c781 100644 (file)
--- a/helm/matita/matitaMisc.mli
+++ b/helm/matita/matitaMisc.mli
@@ -1,4 +1,4 @@
-(* Copyright (C) 2004, HELM Team.
+(* Copyright (C) 2004-2005, HELM Team.
  * 
  * This file is part of HELM, an Hypertextual, Electronic
  * Library of Mathematics, developed at the Computer Science
@@ -23,6 +23,9 @@
  * http://helm.cs.unibo.it/
  *)
 
+(** removes a file if it exists *)
+val safe_remove: string -> unit
+
 val is_dir: string -> bool  (** @return true if file is a directory *)
 val is_regular: string -> bool  (** @return true if file is a regular file *)
 
@@ -39,4 +42,63 @@ val is_proof_object: string -> bool
 val append_phrase_sep: string -> string
 
 val strip_trailing_blanks: string -> string
+val strip_trailing_slash: string -> string
+
+val list_uniq: 'a list -> 'a list (* uniq unix filter on lists *)
+
+  (** @raise Failure *)
+val unopt: 'a option -> 'a
+
+  (** Gdome.element of a MathML document whose rendering should be blank. Used
+  * by cicBrowser to render "about:blank" document *)
+val empty_mathml: unit -> Gdome.document
+val empty_boxml: unit -> Gdome.document
+
+exception History_failure
+
+type 'a memento
+
+class type ['a] history =
+  object ('b)
+    method add : 'a -> unit
+    method next : 'a        (** @raise History_failure *)
+    method previous : 'a    (** @raise History_failure *)
+    method load: 'a memento -> unit
+    method save: 'a memento
+    method is_begin: bool 
+    method is_end: bool 
+  end
+
+  (** shell like history: new items added at the end of the history
+  * @param size maximum history size *)
+class shell_history : int -> [string] history
+
+  (** browser like history: new items added at the current point of the history
+  * @param size maximum history size
+  * @param first element in history (this history is never empty) *)
+class ['a] browser_history: ?memento:'a memento -> int -> 'a -> ['a] history
+
+  (** create a singleton from a given function. Given function is invoked the
+  * first time it gets called. Next invocation will return first value *)
+val singleton: (unit -> 'a) -> (unit -> 'a)
+
+  (** create a directory, building also parents if needed
+  * @raise Failure when unable to create some directory *)
+val mkdir: string -> unit
+
+val qualify: MatitaTypes.status -> string -> string
+
+val get_proof_status: MatitaTypes.status -> ProofEngineTypes.status
+val get_proof_metasenv: MatitaTypes.status ->  Cic.metasenv
+val get_proof_context: MatitaTypes.status -> Cic.context 
+val get_proof_aliases: MatitaTypes.status -> DisambiguateTypes.environment 
+
+  (** given the base name of an image, returns its full path *)
+val image_path: string -> string
+val obj_file_of_script: string -> string
+
+  (** invoke a given function and return its value; in addition il will print
+   * the given string before invoking it and "/" ^ the given string afterwards.
+   * This permit tracing of functions which does not return a value *)
+val debug_wrap: string -> (unit -> 'a) -> 'a