InternalInputSource.cxx revision 7c478bd95313f5f23a4c958a745db2134aa03244
// Copyright (c) 1994 James Clark
// See the file COPYING for copying permission.
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __GNUG__
#pragma implementation
#endif
#include "splib.h"
#include <string.h>
#include "InternalInputSource.h"
#include "macros.h"
#ifdef SP_NAMESPACE
namespace SP_NAMESPACE {
#endif
InternalInputSource::InternalInputSource(const StringC &str,
InputSourceOrigin *origin)
: InputSource(origin, str.data(), str.data() + str.size()), buf_(0),
contents_(&str)
{
}
InternalInputSource::~InternalInputSource()
{
if (buf_)
delete [] buf_;
}
Xchar InternalInputSource::fill(Messenger &)
{
return eE;
}
void InternalInputSource::pushCharRef(Char c, const NamedCharRef &ref)
{
ASSERT(cur() == start());
noteCharRef(startIndex() + (cur() - start()), ref);
if (buf_ == 0) {
buf_ = new Char[end() - start() + 1];
memcpy(buf_ + 1, cur(), (end() - start())*sizeof(Char));
changeBuffer(buf_ + 1, cur());
}
moveLeft();
*(Char *)cur() = c;
}
Boolean InternalInputSource::rewind(Messenger &)
{
reset(contents_->data(),
contents_->data() + contents_->size());
if (buf_) {
delete [] buf_;
buf_ = 0;
}
return 1;
}
#ifdef SP_NAMESPACE
}
#endif