[Patch v2 1/4] doc: add material on stemming and wildcards

diff --git a/bf/be6ea34a9a1996d9927cf7136009903ba84208 b/bf/be6ea34a9a1996d9927cf7136009903ba84208
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+++ b/bf/be6ea34a9a1996d9927cf7136009903ba84208
@@ -0,0 +1,97 @@
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+From: David Bremner <david@tethera.net>\r
+To: David Bremner <david@tethera.net>, Jani Nikula <jani@nikula.org>,\r
+       notmuch@notmuchmail.org\r
+Subject: [Patch v2 1/4] doc: add material on stemming and wildcards\r
+Date: Mon, 23 Feb 2015 21:05:34 +0100\r
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+This is lightly massaged from the searching page on the wiki.\r
+---\r
+ doc/man7/notmuch-search-terms.rst | 27 +++++++++++++++++++++++++++\r
+ 1 file changed, 27 insertions(+)\r
+\r
+diff --git a/doc/man7/notmuch-search-terms.rst b/doc/man7/notmuch-search-terms.rst\r
+index 54138d2..7fb4a27 100644\r
+--- a/doc/man7/notmuch-search-terms.rst\r
++++ b/doc/man7/notmuch-search-terms.rst\r
+@@ -135,6 +135,33 @@ operators, but will have to be protected from interpretation by the\r
+ shell, (such as by putting quotation marks around any parenthesized\r
+ expression).\r
+ \r
++Stemming\r
++--------\r
++\r
++**Stemming** in notmuch means that these searches\r
++\r
++::\r
++\r
++        notmuch search detailed\r
++        notmuch search details\r
++        notmuch search detail\r
++\r
++will all return identical results, because Xapian first "reduces" the\r
++term to the common stem (here 'detail') and then performs the search.\r
++\r
++There are two ways to turn this off: a search for a capitalized word\r
++will be performed unstemmed, so that one can search for "John" and not\r
++get results for "Johnson"; phrase searches are also unstemmed (see\r
++below for details).  Stemming is currently only supported for\r
++English. Searches for words in other languages will be performed unstemmed.\r
++\r
++Wildcards\r
++---------\r
++\r
++It is possible to use a trailing '\*' as a wildcard. A search for\r
++'wildc\*' will match 'wildcard', 'wildcat', etc.\r
++\r
++\r
+ Boolean and Probabilistic Prefixes\r
+ ----------------------------------\r
+ \r
+-- \r
+2.1.4\r
+\r