/**
* Finds out the actual starting index of lig/kern program in case there is a restart instructions
* and checks for validity. TFtoPL[67]
*
* @param start the starting index of lig/kern program given in a character info.
* @return Returns the actual starting index.
*/
private int ligStart(final int start) {
int newstart = start;
if (newstart < ligkerncommand.length) {
TfmLigKernCommand lkc = ligkerncommand[start];
if (lkc.meansRestart()) {
newstart = lkc.restartIndex();
if (newstart < ligkerncommand.length
&& lkc.getActivity() == TfmLigKernCommand.UNREACHABLE) {
lkc.setActivity(TfmLigKernCommand.PASSTHROUGH);
}
}
}
return newstart;
}
/**
* 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);
}
}
}
