@Override
public List<FieldChange> remove(List<BibEntry> entriesToRemove) {
Objects.requireNonNull(entriesToRemove);
List<FieldChange> changes = new ArrayList<>();
for (BibEntry entry : entriesToRemove) {
if (contains(entry)) {
String oldContent = entry.getField(searchField).orElse("");
KeywordList wordlist = KeywordList.parse(oldContent, keywordSeparator);
wordlist.remove(searchExpression);
String newContent = wordlist.getAsString(keywordSeparator);
entry.setField(searchField, newContent).ifPresent(changes::add);
}
}
return changes;
}
private Set<String> getFieldContentAsWords(BibEntry entry) {
if (onlySplitWordsAtSeparator) {
return entry
.getField(searchField)
.map(content -> KeywordList.parse(content, keywordSeparator).toStringList())
.orElse(Collections.emptySet());
} else {
return entry.getFieldAsWords(searchField);
}
}