Searching through different charsets

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+From: Serge Z <triumhiz@yandex.ru>\r
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+Subject: Searching through different charsets\r
+Date: Wed, 22 Feb 2012 21:10:41 +0400\r
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+\r
+\r
+Hello!\r
+\r
+I've got the following problem: fetched emails can be in different encoding=\r
+s.\r
+And searching a term typed in one encoding (system default) does not match =\r
+the\r
+same term in another encoding.\r
+\r
+The solution, as I see, can be in preprocessing each incoming email to\r
+"normalize" it and its encoding so that indexer will handle emails in system\r
+encoding only. Could you please suggest something?\r
+\r
+Another issue (not so much wanted but wanted too) is searching through html\r
+messages without matching html tags.\r
+\r
+This problem looks to be solvable by properly configured run-mailcap. Is th=\r
+ere\r
+such solution anywhere?\r
+\r
+Thanks.\r