rrcSmall/src/Configuration.cpp

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#include "Configuration.h"

#include <algorithm>

bool Configuration::addEntry(const std::string &entry) {
    if (entry.empty() || entry[0] == '#') {
        return false;
    }
    std::string fullKey;
    std::string currentKey;
    fullKey.reserve(32);
    currentKey.reserve(16);

    uint32_t state = 0;

    ConfigurationNode *currentNode = &mainNode;

    for (size_t i = 0; i < entry.size(); ++i) {
        auto c = entry[i];
        if (state == 0) {
            if ((c == '.' || c == ' ' || c == '\t')) {
                if (!currentKey.empty()) {
                    currentNode = &currentNode->getOrCreateSubNode(currentKey);

                    fullKey += currentKey;

                    currentKey.clear();

                    if (c == ' ' || c == '\t') {
                        state = 1;
                    } else {
                        fullKey += ".";
                    }
                }
            } else {
                currentKey += c;
            }
        } else if (state == 1) {
            if ((c == ' ' || c == '\t')) {
                if (!currentKey.empty()) {
                    if (currentKey == "int") {
                        currentNode->type = ConfigurationNode::Type::ValueInt;
                    } else if (currentKey == "text") {
                        currentNode->type = ConfigurationNode::Type::ValueText;
                    } else if (currentKey == "bool") {
                        currentNode->type = ConfigurationNode::Type::ValueBool;
                    }

                    currentKey.clear();

                    state = 2;
                }
            } else {
                currentKey += c;
            }
        } else if (state == 2) {
            if (i == (entry.size() - 1)) {
                currentKey += c;
                currentNode->value = currentKey;
                if (std::find(orderedNodes.begin(), orderedNodes.end(), fullKey) == orderedNodes.end()) {
                    orderedNodes.emplace_back(fullKey);
                }
            } else if ((c == ' ' || c == '\t') && currentKey.empty()) {

            } else {
                currentKey += c;
            }
        }
    }

    return state == 2;
}

const Configuration::ConfigurationNode &Configuration::getEntry(const std::string &entry) const {
    if (entry.empty() || entry[0] == '#') {
        return mainNode;
    }
    std::string currentKey;
    currentKey.reserve(16);

    const ConfigurationNode *currentNode = &mainNode;

    for (char c : entry) {
        if ((c == '.' || c == ' ' || c == '\t')) {
            if (!currentKey.empty()) {
                currentNode = currentNode->getSubNode(currentKey);

                if (currentNode == nullptr) {
                    return mainNode;
                }

                currentKey.clear();

                if (c == ' ' || c == '\t') {
                    return *currentNode;
                }
            }
        } else {
            currentKey += c;
        }
    }

    if (!currentKey.empty()) {
        currentNode = currentNode->getSubNode(currentKey);
        if (currentNode != nullptr) {
            return *currentNode;
        }
    }

    return mainNode;
}

void
Configuration::getAllEntriesForNode(std::vector<std::string> &entries, const Configuration::ConfigurationNode &node,
                                    const std::string &key) const {
    for (const auto &n : node.possibleNodes) {
        if (n.type != ConfigurationNode::Type::Node) {
            entries.push_back(key + n.name + " " + n.getTypeString() + " " + n.value);
        } else {
            getAllEntriesForNode(entries, n, key + n.name + ".");
        }
    }
}

std::vector<std::string> Configuration::getAllEntries() const {
    std::vector<std::string> entries;

    for (const auto &key : orderedNodes) {
        auto &v = getEntry(key);
        entries.push_back(key + " " + v.getTypeString() + " " + v.value);
    }

    return entries;
}

Configuration::ConfigurationNode &Configuration::ConfigurationNode::getOrCreateSubNode(const std::string &k) {
    for (auto &node : possibleNodes) {
        if (node.name == k) {
            return node;
        }
    }

    possibleNodes.emplace_back(ConfigurationNode(k, ConfigurationNode::Type::Node));
    return possibleNodes[possibleNodes.size() - 1];
}

const Configuration::ConfigurationNode *Configuration::ConfigurationNode::getSubNode(const std::string &k) const {
    for (auto &node : possibleNodes) {
        if (node.name == k) {
            return &node;
        }
    }

    return nullptr;
}

std::pair<uint32_t, uint32_t> Configuration::ConfigurationNode::getEUI64ToInteger() const {
    std::pair<uint32_t, uint32_t> pair{0xFFFFFFFF, 0xFFFFFFFF};
    uint32_t b[8];
    int scanCount;

    /* Try with the ':' delimiter */
    scanCount = sscanf(getText().c_str(),
                       "%2x:%2x:%2x:%2x:%2x:%2x:%2x:%2x",
                       &b[0],
                       &b[1],
                       &b[2],
                       &b[3],
                       &b[4],
                       &b[5],
                       &b[6],
                       &b[7]);

    /* Try with the '-' delimiter */
    if (scanCount == 0) {
        scanCount = sscanf(getText().c_str(),
                           "%2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x",
                           &b[0],
                           &b[1],
                           &b[2],
                           &b[3],
                           &b[4],
                           &b[5],
                           &b[6],
                           &b[7]);
    }

    if (scanCount == 8) {
        pair.second = (b[0] & 0xFF) << 24;
        pair.second |= (b[1] & 0xFF) << 16;
        pair.second |= (b[2] & 0xFF) << 8;
        pair.second |= (b[3] & 0xFF);

        pair.first = (b[4] & 0xFF) << 24;
        pair.first |= (b[5] & 0xFF) << 16;
        pair.first |= (b[6] & 0xFF) << 8;
        pair.first |= (b[7] & 0xFF);
    }

    return pair;
}