OpenSystemsDevelopment / qpdf

Breaking API change: length parameter has disappeared from the
StreamDataProvider version of QPDFObjectHandle::replaceStreamData
since it is no longer necessary to compute it in advance.  This
breaking change is justified by the fact that removing the length
parameter provides the caller an opportunity to simplify the calling
code.

Previous versions of qpdf incorrectly passed arbitrary objects from
/Pages objects down to individual pages in direct contradition with
the PDF specification.  These are now left in /Pages.  When
intermediate /Pages nodes are being discarded as when the /Pages tree
is being flattened, a warning is issued when unknown keys are
encountered.

Refactored optimizePagesTree to pushInheritedAttributesToPage and made
public

Test coverage case for new newStream method
Expose decimal_places argument for double-based newReal

All enhancements suggested by Tobias.

This makes the code simpler than having to create a buffer of a fixed
size and copy the string to it.

This rework makes xref reconstruction run much faster and use much
less memory.

This makes it possible to store offsets that are larger than 2 GB in
the trailer dictionary.

Also updated pdf_from_scratch test driver to use the new factories,
and made some cosmetic improvements and documentation updates for the
emptyPDF() method.

off_t is used internally only when needed to talk to standard
libraries.  This requires that the "long long" type be supported by
the compiler.

Split optimizePagesTree into a simpler top-level routine and a
recursive internal routine.

The method is helpful in other places, like the upcoming QPDF::addPage, too.

Added methods to append to arrays, insert items into arrays, and
replace array contents with a vector of items.

Significantly improve the code's use of off_t for file offsets, size_t
for memory sizes, and integer types in cases where there has to be
compatibility with external interfaces.  Rework sections of the code
that would have prevented qpdf from working on files larger than 2 (or
maybe 4) GB in size.

New header qpdf/Types.h attempts to make sure size_t and off_t are
defined on any platform and in a way that would work with large file
support.  Additionally, missing header files are included to get
unlink.

… of delete, thus making it useful to run valgrind over qpdf during its test suite

git-svn-id: svn+q:///qpdf/trunk@1051 71b93d88-0707-0410-a8cf-f5a4172ac649

git-svn-id: svn+q:///qpdf/trunk@1044 71b93d88-0707-0410-a8cf-f5a4172ac649

git-svn-id: svn+q:///qpdf/trunk@1035 71b93d88-0707-0410-a8cf-f5a4172ac649

git-svn-id: svn+q:///qpdf/trunk@1034 71b93d88-0707-0410-a8cf-f5a4172ac649