C++自定义接口类设计器之模板代码生成四

本文作者原创，首发在本博客；CSDN 上的同名文章已标注为转载并回链到本页：https://blog.csdn.net/qq_30220519/article/details/140897991

关键代码

QStringList multis = templateStr.split('\n');
bool startConfig = false;
bool startVar = false;
bool startTemplate = false;
for (const auto& line : multis) {
    if(startConfig) {
        if(line.trimmed().startsWith("camealCase")) {
            auto name_val = line.split('=');
            if(name_val.empty())
                continue;
            auto val = name_val.back();
            m_isCamelCase = ("true" == val.trimmed());
        }
    }

    if(startVar) {
        if(line.trimmed().startsWith("scopeName")) {
            auto name_val = line.split('=');
            if(name_val.empty())
                continue;
            m_scopeName = name_val.back().trimmed();
        } else if(line.trimmed().startsWith("funcName")) {
            auto name_val = line.split('=');
            if(name_val.empty())
                continue;
            m_funcName = name_val.back().trimmed();
        } else if(line.trimmed().startsWith("returnType")) {
            auto name_val = line.split('=');
            if(name_val.empty())
                continue;
            m_returnType = name_val.back().trimmed();
        } else if(line.trimmed().startsWith("defaultReturn")) {
            auto name_val = line.split('=');
            if(name_val.empty())
                continue;
            m_defalutValue = name_val.back().trimmed();
        } else if(line.trimmed().startsWith("paramType")) {
            auto name_val = line.split('=');
            if(name_val.empty())
                continue;
            m_paramType = name_val.back().trimmed();
        }
    }

    if(startTemplate) {
        auto replaceText = line;
        if(auto index = line.indexOf("${returnType}"); -1 != index) {
            replaceText.replace("${returnType}", m_returnType);
        }
        if(auto index = line.indexOf("${scopeName}"); -1 != index) {
            if(m_isCamelCase) {
                auto preChar = line.at(index - 1);
                auto newScopeName = m_scopeName;
                if(QChar(' ') == preChar)
                    newScopeName.replace(0, 1, newScopeName.at(0).toUpper());
                else
                    newScopeName.replace(0, 1, newScopeName.at(0).toLower());
                replaceText.replace("${scopeName}", newScopeName);
            } else {
                replaceText.replace("${scopeName}", m_scopeName);
            }
        }
        if(auto index = line.indexOf("${funcName}"); -1 != index) {
            if(m_isCamelCase) {
                auto preChar = line.at(index - 1);
                auto newFuncName = m_funcName;
                if(QChar(' ') == preChar)
                    newFuncName.replace(0, 1, newFuncName.at(0).toLower());
                else
                    newFuncName.replace(0, 1, newFuncName.at(0).toUpper());
                replaceText.replace("${funcName}", newFuncName);
            } else {
                replaceText.replace("${funcName}", m_funcName);
            }
        }
        if(auto index = line.indexOf("${paramType}"); -1 != index) {
            replaceText.replace("${paramType}", m_paramType);
        }
        if(auto index = line.indexOf("${defaultReturn}"); -1 != index) {
            replaceText.replace("${defaultReturn}", m_defalutValue);
        }
        m_template += replaceText + '\n';
    }


    if("[config]" == line.trimmed()) {
        startConfig = true;
    } else if("[var]" == line.trimmed()) {
        startConfig = false;
        startVar = true;
    } else if("[template]" == line.trimmed()) {
        startVar = false;
        startTemplate = true;
    }
}

模板配置

[config]
camealCase = true

[var]
scopeName = Test
funcName = genetate
returnType = std::string
defaultReturn = “”

[template]
${returnType} ${scopeName}::get${funcName}() const
{
    auto node = getNode();
    if (!node)
        return ${defaultReturn};

    ${returnType} ${funcName} = node->${funcName}(); // 修改属性名
    return ${funcName};
}

生成后

std::string Test::getGenetate() const

{
    
auto node = getNode();

if (!node)

return "";



std::string genetate = node->genetate(); // 修改属性名

return genetate;

}

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