SearchAbout and similar: add a customizable blacklist

 Instead of hard-coding in search.ml some substrings such
 as "_admitted" or "_subproof" we don't want to see in results
 of SearchAbout and co, we now have a user command:

  Add Search Blacklist "foo".
  Remove Search Blacklist "foo". (* the opposite *)
  Print Table Search Blacklist. (* the current state *)

 In Prelude.v, three substrings are blacklisted originally:
  - "_admitted" for internal lemmas due to admit.
  - "_subproof" for internal lemmas due to abstract.
  - "Private_" for hiding auxiliary modules not meant for
    global usage.

 Note that substrings are searched in the fully qualified names
 of the available lemmas (e.g. "Coq.Init.Peano.plus").

 This commit also adds the prefix "Private_" to some internal modules
 in Numbers, Z, N, etc.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14408 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 3 insertions, 1 deletions

diff --git a/theories/Init/Prelude.v b/theories/Init/Prelude.v
index f9c758054..e929c561c 100644
--- a/theories/Init/Prelude.v
+++ b/theories/Init/Prelude.v
@@ -22,4 +22,6 @@ Declare ML Module "ground_plugin".
 Declare ML Module "dp_plugin".
 Declare ML Module "recdef_plugin".
 Declare ML Module "subtac_plugin".
-Declare ML Module "xml_plugin".
\ No newline at end of file
+Declare ML Module "xml_plugin".
+(* Default substrings not considered by queries like SearchAbout *)
+Add Search Blacklist "_admitted" "_subproof" "Private_".