/**
* Records the starting indexes of final lig/kern program in ligKernTable to auxiliary character
* information field <code>ligkernstart</code> of <code>AuxCharInfo</code>.
*
* @param pos the position of currently processed instruction in original tfm lig/kern table
* <code>ligAuxTab</code>.
* @param start the position of corresponding instruction in final lig/kern table LigKernTable.
*/
private void setLigStarts(final int pos, final int start) {
TfmIndexMultimap.Enum lab = labels.forKey(pos);
while (lab.hasMore()) {
int c = lab.next();
if (c == BOUNDARYLABEL) {
boundaryStart = start;
} else {
charinfo.getCharinfoword()[c].setLigkernstart(start);
}
}
}
/**
* Builds associative table labels which maps the character codes to lig/kern program starting
* indexes in ligAuxTab for remapping later. It also marks the starting instructions of lig/kern
* programs as active (using the <code>activity</code> field of LigKern). TFtoPL[67]
*/
private void buildLabels() {
TfmCharInfoWord[] ciw = charinfo.getCharinfoword();
for (int i = 0; i < ciw.length; i++) {
if (ciw[i].getTag() == TfmCharInfoWord.LIG_TAG) {
int start = ligStart(ciw[i].getRemainder());
if (start < ligkerncommand.length) {
labels.add(start, i);
ligkerncommand[start].setActivity(TfmLigKernCommand.ACCESSIBLE);
} else {
ciw[i].resetTag();
}
}
}
}
/**
* Tries to find the information about lig/kerns for word boundaries in tfm lig/kern table and
* checks for errors. TFtoPL[69]
*/
private void setupBoundary() {
// first entry
TfmLigKernCommand lkc = ligkerncommand[0];
if (lkc.meansBoundary()) {
boundaryChar = lkc.nextChar();
lkc.setActivity(TfmLigKernCommand.PASSTHROUGH);
}
// last entry
lkc = ligkerncommand[ligkerncommand.length - 1];
if (lkc.meansBoundary()) {
int start = lkc.restartIndex();
lkc.setActivity(TfmLigKernCommand.PASSTHROUGH);
if (start < ligkerncommand.length) {
ligkerncommand[start].setActivity(TfmLigKernCommand.ACCESSIBLE);
labels.add(start, BOUNDARYLABEL);
}
}
}
