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Namazu a full text retrieval search system

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Last modified: 2009-02-10


Query: [How to search]

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Query

Single term query

The query specifies only one term for retrieving all documents which contain the term. e.g.,

NIMS

AND query

The query specifies two or more terms for retrieving all documents which contain both terms. You can insert the and operator between the terms. e.g.,

NetBSD and Apache

You can ommit the and operator. Terms which is separated by one ore more spaces is assumed to be AND query.

OR query

The query specifies two or more terms for retrieving all documents which contain either term. You can insert the or operator between the terms. e.g.,

NetBSD or Solaris

NOT query

The query specifies two or more terms for retrieving all documents which contain a first term but does't contain the following terms. You can insert the not operator between the terms to do NOT query. e.g.,

GNU not UNIX

Grouping

You can group queries by surrounding them by parentheses. The parentheses should be separated by one or more spaces. e.g.,

( OpenBSD or NetBSD ) and Apache not intel

Phrase searching

You can search for a phrase which consists of two or more terms by surrounding them with double quotes like "..." or with braces like {...}. In Namazu, precision of phrase searching is not 100 %, so it causes wrong results occasionally. e.g.,

{BSD license}

Substring matching

The are three types of substring matching searching.

Prefix matching
hack* (terms which begin with hack)
Inside matching
*sparc* (terms which contain sparc)
Suffix matching
*BSD (terms which terminated with BSD)

Regular expressions

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 offers generally Perl compatible flavor. e.g.,

/(Open|Net|Free)?BSDi?/

Field-specified searching

You can limit your search to specific fields such as Subject:, From:, Message-Id:. It's especially convenient for Mail/News documents. e.g.,

Notes


This search system is powered by Namazu v2.0.18

IZUNO.hitoshi@nims.go.jp