[sup-devel] [PATCH] fix searching for non-lowercase labels

[Sascha Silbe <sascha-pgp@silbe.org>]

Case is preserved when marshalling labels (stored as document data), but label
terms are stored lowercase. build_xapian_query uses mkterm and thus already
converts labels to lowercase when searching. parse_query accepts a Xapian
query string from the user and needs to explicitly convert labels to
lowercase, which it now does.

Signed-off-by: Sascha Silbe <sascha-pgp@silbe.org>
---
 lib/sup/index.rb |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/lib/sup/index.rb b/lib/sup/index.rb
index a72bec6..f90d0d9 100644
--- a/lib/sup/index.rb
+++ b/lib/sup/index.rb
@@ -346,6 +346,12 @@ EOS
       end
     end
 
+    ## labels are stored lower-case in the index
+    subs = subs.gsub(/\blabel:(\S+)\b/) do
+      label = $1
+      "label:#{label.downcase}"
+    end
+
     ## if we see a label:deleted or a label:spam term anywhere in the query
     ## string, we set the extra load_spam or load_deleted options to true.
     ## bizarre? well, because the query allows arbitrary parenthesized boolean
-- 
1.7.1

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