package org.jabref.logic.bibtex.comparator;
import java.util.Comparator;
import java.util.Locale;
import org.jabref.model.entry.BibtexString;
public class BibtexStringComparator implements Comparator<BibtexString> {
private final boolean considerRefs;
/**
* @param considerRefs Indicates whether the strings should be
* sorted according to internal references in addition to
* alphabetical sorting.
*/
public BibtexStringComparator(boolean considerRefs) {
this.considerRefs = considerRefs;
}
@Override
public int compare(BibtexString s1, BibtexString s2) {
int res;
// First check their names:
String name1 = s1.getName().toLowerCase(Locale.ROOT);
String name2 = s2.getName().toLowerCase(Locale.ROOT);
res = name1.compareTo(name2);
if (res == 0) {
return res;
}
// Then, if we are supposed to, see if the ordering needs
// to be changed because of one string referring to the other.x
if (considerRefs) {
// First order them:
BibtexString pre;
BibtexString post;
if (res < 0) {
pre = s1;
post = s2;
} else {
pre = s2;
post = s1;
}
// Then see if "pre" refers to "post", which is the only
// situation when we must change the ordering:
String namePost = post.getName().toLowerCase(Locale.ROOT);
String textPre = pre.getContent().toLowerCase(Locale.ROOT);
// If that is the case, reverse the order found:
if (textPre.contains("#" + namePost + "#")) {
res = -res;
}
}
return res;
}
}