assimp.assimp/code/AssetLib/Collada/ColladaHelper.cpp

/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------

Copyright (c) 2006-2025, assimp team

All rights reserved.

Redistribution and use of this software in source and binary forms,
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following disclaimer.

* Redistributions in binary form must reproduce the above
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following disclaimer in the documentation and/or other
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* Neither the name of the assimp team, nor the names of its
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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----------------------------------------------------------------------
*/
/** Helper structures for the Collada loader */

#include "ColladaHelper.h"

#include <assimp/ParsingUtils.h>
#include <assimp/commonMetaData.h>

namespace Assimp {
namespace Collada {

const MetaKeyPairVector MakeColladaAssimpMetaKeys() {
    MetaKeyPairVector result;
    result.emplace_back("authoring_tool", AI_METADATA_SOURCE_GENERATOR);
    result.emplace_back("copyright", AI_METADATA_SOURCE_COPYRIGHT);
    return result;
}

const MetaKeyPairVector &GetColladaAssimpMetaKeys() {
    static const MetaKeyPairVector result = MakeColladaAssimpMetaKeys();
    return result;
}

const MetaKeyPairVector MakeColladaAssimpMetaKeysCamelCase() {
    MetaKeyPairVector result = MakeColladaAssimpMetaKeys();
    for (auto &val : result) {
        ToCamelCase(val.first);
    }
    return result;
}

const MetaKeyPairVector &GetColladaAssimpMetaKeysCamelCase() {
    static const MetaKeyPairVector result = MakeColladaAssimpMetaKeysCamelCase();
    return result;
}

// ------------------------------------------------------------------------------------------------
// Convert underscore_separated to CamelCase: "authoring_tool" becomes "AuthoringTool"
void ToCamelCase(std::string &text) {
    if (text.empty())
        return;
    // Capitalise first character
    auto it = text.begin();
    (*it) = ai_toupper(*it);
    ++it;
    for (/*started above*/; it != text.end(); /*iterated below*/) {
        if ((*it) == '_') {
            it = text.erase(it);
            if (it != text.end())
                (*it) = ai_toupper(*it);
        } else {
            // Make lower case
            (*it) = ai_tolower(*it);
            ++it;
        }
    }
}

} // namespace Collada
} // namespace Assimp