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path: root/src/support/include_entity_resolver.h
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2014-08-16Implemented primitive optional parameter support for external functionsAdrian Kummerlaender
* renamed FunctionExternalTextFormatter into FunctionExternalCommand ** the goal is to provide a general interface to a variety of external commands *** e.g. not just text formatters but system utilities for file management and so on ** this requires the stdin parameter to be optional as not all external commands require stdin input * implemented "filter_derived" helper template to determine amount of optional parameters ** optional parameters are defined as "boost::optional" specializations *** they in turn can be detected by checking if "boost::optional_detail::optional_tag" is a base class * "callConstructDocument" member method of "FunctionBase" performs additional bounds checking of parameter vector * "boost::optional<std::string>" specific member overload was added to "XObjectValue" helper class ** we will have to provide full specializations for all optional types as C++ prohibits partial member function template specialization * renamed the external function in "PlattformGuard" * changed README.md and test cases accordingly
2014-06-25Added support for resolving non-existing pathsAdrian Kummerlaender
* previous logic for resolving boost::filesystem::path parameters in the XObjectValue class actively tried to resolve existing files ** this contradicts the planned introduction of e.g. a external "write-file" function * callers of external functions with path arguments now have to enclose them in square brackets if include path resolution is required ** analog to the usage of the "xsl:import" tag * moved "getPathFromSystemId" from compilation local method into static method of IncludeEntityResolver * changed test cases accordingly
2014-06-17Added context awareness to XObjectValue casting logicAdrian Kummerlaender
* added support for defining boost::filesystem::path as a external function parameter ** boost::filesystem::path parameters are resolved against the appropriate FilesystemContext and IncludeEntityResolver instances * xalan::XSLTInputSource parameter source paths are also resolved * removed need for passing a reference FilesystemContext to "constructDocument" methods ** they now only accept the parameters of the external function implemented by them ** all path resolution logic is wrapped by the newly created XObjectValue class * converted XObjectValue namespace into class ** the "get" template method is now a template member method ** this was needed to enable value casting logic to access the appropriate FilesystemContext and IncludeEntityResolver instances * this commit marks the next step towards the goals defined in 741a70f
2014-06-09Added include path resolution to FilesystemContext constructorAdrian Kummerländer
* extracted system id handling into separate "resolve" method overload of "IncludeEntityResolver" class * paths to be resolved against the include path vector are enclosed by square brackets ** FilesystemContext for external functions was instantiated using the unmodified systemId provided by xalan::Locator ** this commit adds include path resolution to that step *** exceptions were thrown as the program tried to instantiate a FilesystemContext instance without resolving the square bracket syntax * changed FunctionTransform "target" attribute content to the target path filename instead of the full path
2014-05-23Simplified IncludeEntityResolver constructor and improved constnessAdrian Kummerländer
* std::vector<FilesystemContext> instance is now const ** this required a constructor change * marked resolve member method as const as it doesn't need to modify anything ** this is also true for the overloaded resolveEntity member method ** the base class xercesc::EntityResolver prevents us from marking it as such
2014-05-22Replaced std::pair<bool, *> with the more convenient boost::optional<*>Adrian Kummerländer
* InputXSLT is dependent on boost anyway, so there is no argument to be made to emulate boost::optional using std::pair
2014-05-21Moved include path resolution into separate member methodAdrian Kummerländer
* enables access to include path resolution from external functions ** this will be useful to enable reading files from the include path using the external read-file or read-xml-file functions * moved file path extraction into a function local to the compilation unit
2014-05-20Replaced FunctionResolveInclude with IncludeEntityResolverAdrian Kummerländer
* xalan / xerces offers the possibility of implementing custom entity resolvers which are called upon by "<xsl:include..." ** such a custom resolver was implemented to resolve include path entities * this is a much better way to support include paths than offering a custom external "resolve-include" function * as entity paths are expanded before they are passed to the entity resolver, a special "[path]" syntax simmilar to "#include <path>" had to be implemented