From mboxrd@z Thu Jan  1 00:00:00 1970
From: ezyang@MIT.EDU (Edward Z. Yang)
Date: Wed, 10 Jun 2009 01:44:54 -0400
Subject: [sup-talk] [PATCH] before-search hook
Message-ID: <1244612627-sup-982@javelin>

>From a5c72844e8195df7a8eabd5ea592507599de72cb Mon Sep 17 00:00:00 2001
From: Edward Z. Yang <edwardzyang at thewritingpot.com>
Date: Wed, 10 Jun 2009 01:42:50 -0400
Subject: [PATCH] Add before-search hook, for shortcuts for custom search queries.
 Signed-off-by: Edward Z. Yang <edwardzyang at thewritingpot.com>

---
 lib/sup/hook.rb  |    4 ++++
 lib/sup/index.rb |   12 +++++++++++-
 2 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/lib/sup/hook.rb b/lib/sup/hook.rb
index 0a0a2f6..d446aa3 100644
--- a/lib/sup/hook.rb
+++ b/lib/sup/hook.rb
@@ -19,6 +19,10 @@ class HookManager
 
     attr_writer :__locals
 
+    ## an annoying gotcha here is that if you try something
+    ## like var = var.foo(), var will magically get allocated
+    ## to Nil and method_missing will never get called.  Stick
+    ## to mutation, kiddos!
     def method_missing m, *a
       case @__locals[m]
       when Proc
diff --git a/lib/sup/index.rb b/lib/sup/index.rb
index e403570..19556f0 100644
--- a/lib/sup/index.rb
+++ b/lib/sup/index.rb
@@ -25,6 +25,13 @@ class Index
 
   include Singleton
 
+  HookManager.register "before-search", <<EOS
+Executes before a string search is applied to the index.
+Variables:
+  subs: The string being searched, use gsub! to change the
+  search (you must use mutation!)
+EOS
+
   ## these two accessors should ONLY be used by single-threaded programs.
   ## otherwise you will have a naughty ferret on your hands.
   attr_reader :index
@@ -508,7 +515,10 @@ protected
   def parse_user_query_string s
     extraopts = {}
 
-    subs = s.gsub(/\b(to|from):(\S+)\b/) do
+    subs = String.new s
+    HookManager.run("before-search", :subs => subs)
+
+    subs = subs.gsub(/\b(to|from):(\S+)\b/) do
       field, name = $1, $2
       if(p = ContactManager.contact_for(name))
         [field, p.email]
-- 
1.6.0.4