Advanced Search
This query specifies only one term for retrieving all of the
documents which contain that term, for example:
namazu
This query specifies two or more terms for retrieving all of the
documents which contain both terms. Insert the
and operator between the terms, e.g.
Linux and Netscape
You can omit the and operator. Terms which are
separated by one ore more spaces are assumed to be an AND query.
This query specifies two or more terms for retrieving all
documents which contain any one term. Insert the
or operator between the terms,
e.g.
Linux or FreeBSD
This query specifies two or more terms for retrieving all of the
documents which contain a first term but do not contain the
following terms. Insert the not
operator between the terms, for example:
Linux not UNIX
You can group queries by surrounding them by
parentheses. The parentheses should be separated by one or
more spaces. e.g.
( Linux or FreeBSD ) and Netscape not Windows
You can search for a phrase that consists of two or more terms
by surrounding them with double quotation marks or braces such as
"..." and {...} .
In Namazu, the precision of phrase searching is not 100 %,
so wrong results may occasionally occur. Example:
{GNU Emacs}
The are three types of searching by substring matching.
- Prefix matching
inter* (terms which begin with inter )
- Inside matching
*text* (terms which contain text )
- Suffix matching
*net (terms which terminated
with net )
You can use regular expressions for pattern matching. The
regular expressions must be surrounded by slashes like /.../ . Namazu uses Ruby's regular
regular expressions engine. It generally offers a Perl compatible flavor.
e.g.,
/pro(gram|blem)s?/
You can limit your search to specific fields such as
Subject: , From: ,
Message-Id: . This feature is especially convenient for
Mail/News documents, for example:
+subject:Linux
(Retrieves all documents which contain Linux
in a Subject: field)
+subject:"GNU Emacs"
(Retrieves all documents which contain GNU Emacs
in a Subject: field)
+from:foo@bar.jp
(Retrieves all documents which contain foo@bar.jp
in a From: field)
+message-id:<199801240555.OAA18737@foo.bar.jp>
(Retrieves a certain document which contains specified
Message-Id: )
- In any queries, Namazu ignores case distinctions of
alphabet characters; i.e. Namazu does
case-insensitive pattern matching.
- Japanese phrases are automatically segmented into
morphemes and are handled as phrase searching. This process occasionally
causes invalid segmentation.
- Letters, numbers or parts of symbols (duplicated in
ASCII) which are defined in JIS X 0208 (Japanese
Industrial Standards) are handled as ASCII characters.
- Namazu can handle a term which contains symbols like
TCP/IP . Since this method of handling isn't complete,
you can also describe the term as TCP and IP instead of
TCP/IP , but it may cause noisy results.
- Substring matching and field-specified searching takes
more time than other methods.
- If you want to use
and ,
or or not simply as terms, you can
surround them with double quotes or braces like "..." or {...} .
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