bool WireReader::readString(ConstString& str, bool *is_vocab)
{
if (state->len<=0) {
return false;
}
int tag = state->code;
if (state->code<0) {
if (noMore()) {
return false;
}
tag = reader.expectInt();
if (tag!=BOTTLE_TAG_STRING&&tag!=BOTTLE_TAG_VOCAB) {
return false;
}
}
state->len--;
if (tag==BOTTLE_TAG_VOCAB) {
if (is_vocab) {
*is_vocab = true;
}
if (noMore()) {
return false;
}
NetInt32 v = reader.expectInt();
if (reader.isError()) {
return false;
}
str = Vocab::decode(v);
return true;
}
if (is_vocab) {
*is_vocab = false;
}
if (noMore()) {
return false;
}
int len = reader.expectInt();
if (reader.isError()) {
return false;
}
if (noMore()) {
return false;
}
str.resize(len);
reader.expectBlock((const char *)str.c_str(),len);
// This is needed for compatiblity with versions of yarp before March 2015
if (len>0) {
if (str[len-1] == '\0') {
str.resize(len-1);
}
}
return !reader.isError();
}
bool WireReader::readBinary(ConstString& str)
{
if (state->len<=0) {
return false;
}
int tag = state->code;
if (state->code<0) {
if (noMore()) {
return false;
}
tag = reader.expectInt();
if (tag!=BOTTLE_TAG_BLOB) {
return false;
}
}
state->len--;
if (noMore()) {
return false;
}
int len = reader.expectInt();
if (reader.isError()) {
return false;
}
if (len == 0) {
str = ConstString();
return true;
}
if (len<0) {
return false;
}
if (noMore()) {
return false;
}
str.resize(len);
reader.expectBlock((const char *)str.c_str(),len);
return !reader.isError();
}