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Java Source Code / Java Documentation » Content Management System » apache lenya 2.0 » org.apache.cocoon.util 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.cocoon.util.WildcardMatcherHelper

WildcardMatcherHelper
public class WildcardMatcherHelper (Code)
This class is an utility class that perform wildcard-patterns matching and isolation.
version:
   $Id: WildcardMatcherHelper.java 448573 2006-09-21 14:52:23Z anathaniel $


Field Summary
final public static  charESC
    
final public static  charPATHSEP
    
final public static  charSTAR
    


Method Summary
public static  Mapmatch(String pat, String str)
     Match a pattern agains a string and isolates wildcard replacement into a Map.
Here is how the matching algorithm works:
  • The '*' character, meaning that zero or more characters (excluding the path separator '/') are to be matched.
  • The '**' sequence, meaning that zero or more characters (including the path separator '/') are to be matched.
  • The '\*' sequence is honored as a litteral '*' character, not a wildcard

When more than two '*' characters, not separated by another character, are found their value is considered as '**' and immediate succeeding '*' are skipped.
The '**' wildcard is greedy and thus the following sample matches as {"foo/bar","baz","bug"}:
pattern
STAR,STAR,PATHSEP,STAR,PATHSEP,STAR,STAR (why can't I express it litterally?)
string
foo/bar/baz/bug
The first '**' in the pattern will suck up as much as possible without making the match fail.
Parameters:
  pat - The pattern string.
Parameters:
  str - The string to math agains the pattern a Map containing the representation of the extracted pattern.

Field Detail
ESC
final public static char ESC(Code)
Default path separator: "/"



PATHSEP
final public static char PATHSEP(Code)
Default path separator: "/"



STAR
final public static char STAR(Code)
Default path separator: "/"





Method Detail
match
public static Map match(String pat, String str)(Code)
Match a pattern agains a string and isolates wildcard replacement into a Map.
Here is how the matching algorithm works:
  • The '*' character, meaning that zero or more characters (excluding the path separator '/') are to be matched.
  • The '**' sequence, meaning that zero or more characters (including the path separator '/') are to be matched.
  • The '\*' sequence is honored as a litteral '*' character, not a wildcard

When more than two '*' characters, not separated by another character, are found their value is considered as '**' and immediate succeeding '*' are skipped.
The '**' wildcard is greedy and thus the following sample matches as {"foo/bar","baz","bug"}:
pattern
STAR,STAR,PATHSEP,STAR,PATHSEP,STAR,STAR (why can't I express it litterally?)
string
foo/bar/baz/bug
The first '**' in the pattern will suck up as much as possible without making the match fail.
Parameters:
  pat - The pattern string.
Parameters:
  str - The string to math agains the pattern a Map containing the representation of the extracted pattern. The extracted patterns arekeys in the Map from left to right beginning with "1" for te left most, "2" for the next,a.s.o. The key "0" is the string itself. If the return value is null, string does not match to thepattern .



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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