/**
* For given content the list with shrink position information is searched and on the
* corresponding positions the correct repositioning information is calculated and generated.
*/
public void addRepositioningInfo(String content, int pos, int extractedPos) {
int contentLength = content.length();
// wrong way (without correction and analysing)
// reposInfo.addPositionInfo(pos, contentLength, extractedPos, contentLength);
RepositioningInfo.PositionInfo pi = null;
long startPos = pos;
long correction = 0;
long substituteStart;
long remainingLen;
long offsetInExtracted;
for (int i = 0; i < ampCodingInfo.size(); ++i) {
pi = ampCodingInfo.get(i);
substituteStart = pi.getOriginalPosition();
if (substituteStart >= startPos) {
if (substituteStart > pos + contentLength + correction) {
break; // outside the current text
} // if
// should create two repositioning information records
remainingLen = substituteStart - (startPos + correction);
offsetInExtracted = startPos - pos;
if (remainingLen > 0) {
reposInfo.addPositionInfo(
startPos + correction, remainingLen, extractedPos + offsetInExtracted, remainingLen);
} // if
// record for shrank text
reposInfo.addPositionInfo(
substituteStart,
pi.getOriginalLength(),
extractedPos + offsetInExtracted + remainingLen,
pi.getCurrentLength());
startPos = startPos + remainingLen + pi.getCurrentLength();
correction += pi.getOriginalLength() - pi.getCurrentLength();
} // if
} // for
// there is some text remaining for repositioning
offsetInExtracted = startPos - pos;
remainingLen = contentLength - offsetInExtracted;
if (remainingLen > 0) {
reposInfo.addPositionInfo(
startPos + correction, remainingLen, extractedPos + offsetInExtracted, remainingLen);
} // if
} // addRepositioningInfo
