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/**
* Copyright (c) 2001, Sergey A. Samokhodkin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form
* must reproduce the above copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the distribution.
* - Neither the name of jregex nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @version 1.2_01
*/
package jregex;
/**
* A Pattern subclass that accepts a simplified pattern syntax:
*
? - matches any single character;
*
* - matches any number of any characters;
*
all the rest - matches itself.
* Each wildcard takes a capturing group withing a pattern.
*
* @see Pattern
*/
public class WildcardPattern extends Pattern{
//a wildcard class, see WildcardPattern(String,String,int)
public static final String WORD_CHAR="\\w";
//a wildcard class, see WildcardPattern(String,String,int)
public static final String ANY_CHAR=".";
private static final String defaultSpecials="[]().{}+|^$\\";
private static final String defaultWcClass=ANY_CHAR;
protected static String convertSpecials(String s,String wcClass,String specials){
int len=s.length();
StringBuffer sb=new StringBuffer();
for(int i=0;i=0) sb.append('\\');
sb.append(c);
}
}
return sb.toString();
}
private String str;
/**
* @param wc The pattern
*/
public WildcardPattern(String wc){
this(wc,true);
}
/**
* @param wc The pattern
* @param icase If true, the pattern is case-insensitive.
*/
public WildcardPattern(String wc,boolean icase){
this(wc,icase? DEFAULT|IGNORE_CASE: DEFAULT);
}
/**
* @param wc The pattern
* @param flags The bitwise OR of any of REFlags.* . The only meaningful
* flags are REFlags.IGNORE_CASE and REFlags.DOTALL (the latter allows
* the wildcards to match the EOL characters).
*/
public WildcardPattern(String wc,int flags){
compile(wc,defaultWcClass,defaultSpecials,flags);
}
/**
* @param wc The pattern
* @param wcClass The wildcard class, could be any of WORD_CHAR or ANY_CHAR
* @param flags The bitwise OR of any of REFlags.* . The only meaningful
* flags are REFlags.IGNORE_CASE and REFlags.DOTALL (the latter allows
* the wildcards to match the EOL characters).
*/
public WildcardPattern(String wc,String wcClass,int flags){
compile(wc,wcClass,defaultSpecials,flags);
}
protected WildcardPattern(){}
protected void compile(String wc,String wcClass,String specials,int flags){
String converted=convertSpecials(wc,wcClass,specials);
try{
compile(converted,flags);
}
catch(PatternSyntaxException e){
//something unexpected
throw new Error(e.getMessage()+"; original expr: "+wc+", converted: "+converted);
}
str=wc;
}
public String toString(){
return str;
}
/*
public static void main(String[] args){
Pattern p=new WildcardPattern("*.???");
Matcher m=p.matcher("abc.def");
//System.out.println(p.toString_d());
while(m.proceed()){
System.out.println(m);
System.out.println("groups: "+m.groupv());
}
}
*/
}
