Sun Java System Web Server 6.1 SP7 NSAPI Programmer's Guide

Chapter 9 Using Wildcard Patterns

This chapter describes the format of wildcard patterns used by the Sun Java System Web Server. These wildcards are used in:

Wildcard Patterns

The following table describes wildcard patterns, listing the pattern and its use.

Table 9–1 Wildcard Patterns

Pattern  

Use  

*

Match zero or more characters. 

?

Match exactly one occurrence of any character. 

|

An or expression. The substrings used with this operator can contain other special characters such as * or $. The substrings must be enclosed in parentheses, for example, (a|b|c), but the parentheses cannot be nested.

$

Match the end of the string. This is useful in or expressions.

[abc]

Match one occurrence of the characters a, b, or c. Within these expressions, the only character that needs to be treated as a special character is ]; all others are not special. 

[a-z]

Match one occurrence of a character between a and z. 

[^az]

Match any character except a or z. 

*~

This expression, followed by another expression, removes any pattern matching the second expression. 

*

Match zero or more characters. 

Wildcard Examples

The following table provides wildcard examples, listing the pattern and the result.

Table 9–2 Wildcard Examples

Pattern  

Result  

*.netscape.com

Matches any string ending with the characters .netscape.com.

(quark|energy).netscape.com

Matches either quark.netscape.com or energy.netscape.com.

198.93.9[23].???

Matches a numeric string starting with either 198.93.92 or 198.93.93 and ending with any 3 characters.

*.*

Matches any string with a period in it. 

*~netscape-*

Matches any string except those starting with netscape-.

*.netscape.com~quark.netscape.com

Matches any host from domain netscape.com except for a single host quark.netscape.com.

*.netscape.com~(quark|energy|

neutrino).netscape.com

Matches any host from domain .netscape.com except for hosts quark.netscape.com, energy.netscape.com, and neutrino.netscape.com.

*.com~*.netscape.com

Matches any host from domain .com except for hosts from subdomain netscape.com.

type=*~magnus-internal/*

Matches any type that does not start with magnus-internal/.

This wildcard pattern is used in the file obj.conf in the catch-all Service directive.