Query

Single term query

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

IFO, Lactobacillus, ---

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.,

identification and training

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.,

IFO or JCM

NOT query

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

NOT agriculture

Grouping

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

( bacteria or fungi ) and Japan not training

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.,

{Lactobacillus acidophilus}

Substring matching

There are three types of substring matching searching.

Prefix matching
Lacto* (terms which begin with Lacto)
Inside matching
*text* (terms which contain text)
Suffix matching
*ZZZ (terms which terminated with ZZZ)

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.,

/pro(gram|blem)s?/

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