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#include <cstdlib>
#include <locale>

#include "PpContext.h"

namespace glslang {

TPpContext::TPpContext(TParseContextBase& pc, const std::string& rootFileName, TShader::Includer& inclr) :
    preamble(0), strings(0), previous_token('\n'), parseContext(pc), includer(inclr), inComment(false),
    rootFileName(rootFileName),
    currentSourceFile(rootFileName),
    disableEscapeSequences(false)
{
    ifdepth = 0;
    for (elsetracker = 0; elsetracker < maxIfNesting; elsetracker++)
        elseSeen[elsetracker] = false;
    elsetracker = 0;

    strtodStream.imbue(std::locale::classic());
}

TPpContext::~TPpContext()
{
    delete [] preamble;

    // free up the inputStack
    while (! inputStack.empty())
        popInput();
}

void TPpContext::setInput(TInputScanner& input, bool versionWillBeError)
{
    assert(inputStack.size() == 0);

    pushInput(new tStringInput(this, input));

    errorOnVersion = versionWillBeError;
    versionSeen = false;
}

} // end namespace glslang