org.fife.ui.rtextfilechooser.WildcardFileFilter Maven / Gradle / Ivy
/*
* 07/14/2004
*
* WildcardFileFilter.java - A file filter that matches all files.
* Copyright (C) 2004 Robert Futrell
* http://fifesoft.com/rtext
* Licensed under a modified BSD license.
* See the included license file for details.
*/
package org.fife.ui.rtextfilechooser;
import java.io.File;
import java.util.regex.Pattern;
import javax.swing.filechooser.FileFilter;
/**
* A file filter that takes a wildcard string for its filter. This class is
* pretty much 100% ripped off from Java's BasicFileChooserUI's wildcard filter
* class.
*/
class WildcardFileFilter extends FileFilter {
private Pattern pattern;
/**
* Sets the pattern to match with.
*
* @param globPattern The pattern to match with.
*/
public void setPattern(String globPattern) {
char[] gPat = globPattern.toCharArray();
int gpatLength = gPat.length;
char[] rPat = new char[gpatLength * 2];
boolean isWin32 = (File.separatorChar == '\\');
boolean inBrackets = false;
int j = 0;
if (isWin32) {
// On Windows, ending with *.* is equal to ending with *
int len = gpatLength;
if (globPattern.endsWith("*.*"))
len -= 2;
for (int i=0; i= 0)
rPat[j++] = '\\';
rPat[j++] = gPat[i];
break;
}
} // End of for(int i=0; i 1 && gPat[1] == '~')
rPat[j++] = gPat[++i];
else {
rPat[j++] = '\\';
if (i < gPat.length - 1 && "*?[]".indexOf(gPat[i+1]) >= 0)
rPat[j++] = gPat[++i];
else
rPat[j++] = '\\';
}
break;
default:
if (!Character.isLetterOrDigit(gPat[i]))
rPat[j++] = '\\';
rPat[j++] = gPat[i];
break;
} // End of switch(gPat[i]).
} // End of for (int i = 0; i < gPat.length; i++).
} // End of else.
this.pattern = Pattern.compile(new String(rPat, 0, j),
Pattern.CASE_INSENSITIVE);
}
/**
* Returns whether or not the sepcified file is matched by this filter.
*
* @param f The file to see whether or not it passes this filter.
* @return Whether or not this filter accepts f.
*/
public boolean accept(File f) {
if (f==null)
return false;
if (f.isDirectory())
return true;
return pattern.matcher(f.getName()).matches();
}
/**
* Returns a description of the file filter.
*/
public String getDescription() {
return "You never see me!";
}
}