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#include "read_file.h"
#include <fstream>
namespace InputXSLT {
FunctionReadFile::FunctionReadFile(const std::string& path):
path_(path) { }
xalan::XObjectPtr FunctionReadFile::execute(
xalan::XPathExecutionContext& executionContext,
xalan::XalanNode* context,
const xalan::Function::XObjectArgVectorType& arguments,
const xalan::Locator* locator
) const {
if ( arguments.size() != 1 ) {
xalan::XPathExecutionContext::GetAndReleaseCachedString guard(
executionContext
);
generalError(executionContext, context, locator);
}
xalan::CharVectorType castHelper;
arguments[0]->str().transcode(castHelper);
std::string fileName(this->path_);
fileName.reserve(fileName.size() + castHelper.size());
std::move(
castHelper.begin(),
castHelper.end(),
fileName.end()
);
std::ifstream file(fileName);
std::string content(
(std::istreambuf_iterator<char>(file)),
(std::istreambuf_iterator<char>())
);
return executionContext.getXObjectFactory().createString(
xalan::XalanDOMString(content.data())
);
}
FunctionReadFile* FunctionReadFile::clone(
xalan::MemoryManager& manager) const {
return xalan::XalanCopyConstruct(manager, *this);
}
const xalan::XalanDOMString& FunctionReadFile::getError(
xalan::XalanDOMString& result) const {
result.assign("The read-file() function expects one argument.");
return result;
}
}
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