UnicodeString& CompoundTransliterator::toRules(UnicodeString& rulesSource,
UBool escapeUnprintable) const {
// We do NOT call toRules() on our component transliterators, in
// general. If we have several rule-based transliterators, this
// yields a concatenation of the rules -- not what we want. We do
// handle compound RBT transliterators specially -- those for which
// compoundRBTIndex >= 0. For the transliterator at compoundRBTIndex,
// we do call toRules() recursively.
rulesSource.truncate(0);
if (compoundRBTIndex >= 0 && getFilter() != NULL) {
// If we are a compound RBT and if we have a global
// filter, then emit it at the top.
UnicodeString pat;
rulesSource.append("::").append(getFilter()->toPattern(pat, escapeUnprintable)).append(ID_DELIM);
}
for (int32_t i=0; i<count; ++i) {
UnicodeString rule;
if (i == compoundRBTIndex) {
trans[i]->toRules(rule, escapeUnprintable);
} else {
trans[i]->Transliterator::toRules(rule, escapeUnprintable);
}
_smartAppend(rulesSource, NEWLINE);
rulesSource.append(rule);
_smartAppend(rulesSource, ID_DELIM);
}
return rulesSource;
}
UnicodeString& CompoundTransliterator::toRules(UnicodeString& rulesSource,
UBool escapeUnprintable) const {
// We do NOT call toRules() on our component transliterators, in
// general. If we have several rule-based transliterators, this
// yields a concatenation of the rules -- not what we want. We do
// handle compound RBT transliterators specially -- those for which
// compoundRBTIndex >= 0. For the transliterator at compoundRBTIndex,
// we do call toRules() recursively.
rulesSource.truncate(0);
if (numAnonymousRBTs >= 1 && getFilter() != NULL) {
// If we are a compound RBT and if we have a global
// filter, then emit it at the top.
UnicodeString pat;
rulesSource.append(COLON_COLON, 2).append(getFilter()->toPattern(pat, escapeUnprintable)).append(ID_DELIM);
}
for (int32_t i=0; i<count; ++i) {
UnicodeString rule;
// Anonymous RuleBasedTransliterators (inline rules and
// ::BEGIN/::END blocks) are given IDs that begin with
// "%Pass": use toRules() to write all the rules to the output
// (and insert "::Null;" if we have two in a row)
if (trans[i]->getID().startsWith(PASS_STRING, 5)) {
trans[i]->toRules(rule, escapeUnprintable);
if (numAnonymousRBTs > 1 && i > 0 && trans[i - 1]->getID().startsWith(PASS_STRING, 5))
rule = UNICODE_STRING_SIMPLE("::Null;") + rule;
// we also use toRules() on CompoundTransliterators (which we
// check for by looking for a semicolon in the ID)-- this gets
// the list of their child transliterators output in the right
// format
} else if (trans[i]->getID().indexOf(ID_DELIM) >= 0) {
trans[i]->toRules(rule, escapeUnprintable);
// for everything else, use Transliterator::toRules()
} else {
trans[i]->Transliterator::toRules(rule, escapeUnprintable);
}
_smartAppend(rulesSource, NEWLINE);
rulesSource.append(rule);
_smartAppend(rulesSource, ID_DELIM);
}
return rulesSource;
}
