private final SnippetVector checkValue(
SnippetVector currentVector,
Iterator<SnippetVector> vectorIterator,
int startOffset,
Fragment fragment) {
if (currentVector == null) return null;
StringBuilder result = new StringBuilder();
String originalText = fragment.getOriginalText();
int originalTextLength = originalText.length();
int endOffset = startOffset + originalTextLength;
int pos = 0;
while (currentVector != null) {
int end = currentVector.end - fragment.vectorOffset;
if (end > endOffset) break;
int start = currentVector.start - fragment.vectorOffset;
if (start >= startOffset) {
appendSubString(originalText, pos, start - startOffset, result);
if (tags != null) result.append(tags[0]);
appendSubString(originalText, start - startOffset, end - startOffset, result);
if (tags != null) result.append(tags[1]);
pos = end - startOffset;
}
currentVector = vectorIterator.hasNext() ? vectorIterator.next() : null;
}
if (result.length() == 0) return currentVector;
if (pos < originalTextLength) appendSubString(originalText, pos, originalTextLength, result);
fragment.setHighlightedText(result.toString());
return currentVector;
}
private final void appendSubString(String text, int start, int end, StringBuilder sb) {
if (text == null) return;
int l = text.length();
if (end > l) end = l;
if (end < start) return;
sb.append(text.substring(start, end));
}