PUBLIC MARKS with tags api & c

The goal of the SafeStr library is to provide a rich string-handling library for C that has safe semantics yet interoperates with legacy library code in a straightforward manner. Additionally, porting code that uses standard C string handling should be straightforward. The library should work on all modern Unix-like platforms, as well as any 32-bit Microsoft Windows OS. The overt security goals of the library are as follows: 1. Buffer overflows should not be possible when using the API. 2. Format string problems should be impossible when using the API. 3. The API should be capable of tracking whether strings are "trusted", a la Perl's taint mode. The API is meant to provide rich functionality and be easy to use, all the while improving security.

This utility uses the photos.getInfo API to interpret the description fields and the tags for a photo URI into RDF triples. If raptor is present, it will be used to provide proper serializing to RDF rather than the built in and hacky ntriples/turtle output. Machine tags when they are found are scanned for xmlns:prefix=uri and then all other machine tags with that prefix turn into triples. Several prefixes are also pre-defined by the library to automatically get turned into triples without an xmlns, such as blue:, cell:, filter: and geo:. Non-machine tags are not yet interpreted.