mirror of
https://github.com/qpdf/qpdf.git
synced 2024-11-19 10:55:10 +00:00
15eaed5c52
InputSource, FileInputSource, and BufferInputSource are now top-level classes instead of privately nested inside QPDF.
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
#include <qpdf/InputSource.hh>
|
|
#include <string.h>
|
|
#include <qpdf/PointerHolder.hh>
|
|
|
|
void
|
|
InputSource::setLastOffset(qpdf_offset_t offset)
|
|
{
|
|
this->last_offset = offset;
|
|
}
|
|
|
|
qpdf_offset_t
|
|
InputSource::getLastOffset() const
|
|
{
|
|
return this->last_offset;
|
|
}
|
|
|
|
std::string
|
|
InputSource::readLine(size_t max_line_length)
|
|
{
|
|
// Return at most max_line_length characters from the next line.
|
|
// Lines are terminated by one or more \r or \n characters.
|
|
// Consume the trailing newline characters but don't return them.
|
|
// After this is called, the file will be positioned after a line
|
|
// terminator or at the end of the file, and last_offset will
|
|
// point to position the file had when this method was called.
|
|
|
|
qpdf_offset_t offset = this->tell();
|
|
char* buf = new char[max_line_length + 1];
|
|
PointerHolder<char> bp(true, buf);
|
|
memset(buf, '\0', max_line_length + 1);
|
|
this->read(buf, max_line_length);
|
|
this->seek(offset, SEEK_SET);
|
|
qpdf_offset_t eol = this->findAndSkipNextEOL();
|
|
this->last_offset = offset;
|
|
size_t line_length = eol - offset;
|
|
if (line_length < max_line_length)
|
|
{
|
|
buf[line_length] = '\0';
|
|
}
|
|
return std::string(buf);
|
|
}
|