- First commit

yamal.hpp

@@ -0,0 +1,117 @@
+#pragma once
+#include <string>
+#include <vector>
+#include <unordered_map>
+#include <sstream>
+#include <algorithm>
+#include <cctype>
+
+namespace yamal_ns {
+
+template<typename Value>
+class ordered_map {
+    std::unordered_map<std::string, Value> map;
+    std::vector<std::string> keys;
+
+public:
+    Value& operator[](const std::string& key) {
+        if (!map.contains(key)) keys.push_back(key);
+        return map[key];
+    }
+
+    bool contains(const std::string& key) const {
+        return map.find(key) != map.end();
+    }
+
+    void erase(const std::string& key) {
+        if (map.erase(key)) {
+            keys.erase(std::remove(keys.begin(), keys.end(), key), keys.end());
+        }
+    }
+
+    void clear() {
+        map.clear();
+        keys.clear();
+    }
+
+    size_t size() const { return keys.size(); }
+
+    std::vector<std::pair<std::string, Value>> items() const {
+        std::vector<std::pair<std::string, Value>> result;
+        for (const auto& k : keys) result.emplace_back(k, map.at(k));
+        return result;
+    }
+
+    const Value& at(const std::string& key) const { return map.at(key); }
+    Value& at(const std::string& key) { return map.at(key); }
+};
+
+class yamal {
+public:
+    enum Mode { SCALAR, VECTOR, MAP };
+    Mode mode = SCALAR;
+
+    std::string value;
+    std::vector<yamal> vec_data;
+    ordered_map<yamal> map_data;
+
+    std::string pre_comment;
+    std::string inline_comment;
+    bool quoted = false;
+    bool inline_map = false;
+
+    // Mode checks
+    bool isScalar() const;
+    bool isVector() const;
+    bool isMap() const;
+
+    // Mode setters
+    void clearToScalar();
+    void clearToVector();
+    void clearToMap();
+
+    // Accessors
+    operator std::string() const;
+    operator int() const;
+    operator float() const;
+    operator bool() const;
+
+    yamal& operator=(const std::string& v);
+    yamal& operator=(int v);
+    yamal& operator=(float v);
+    yamal& operator=(bool b);
+
+    std::string asString() const;
+    int asInt() const;
+    float asFloat() const;
+    bool asBool() const;
+
+    // Comment accessors
+    const std::string& getComment() const;
+    yamal& setComment(const std::string& c);
+    yamal& appendComment(const std::string& c);
+
+    // Formatting
+    yamal& setQuoted(bool q = true);
+    yamal& setInline(bool in = true);
+
+    // Vector and map access
+    void push_back(const yamal& item);
+    yamal& operator[](size_t i);
+    yamal& operator[](const std::string& key);
+
+    std::vector<std::pair<std::string, yamal>> attributes() const;
+
+    // Serialization
+    std::string serialize(int indent = 0) const;
+
+    // Deserialization
+    void deserialize(const std::string& yamlText);
+
+private:
+    bool isBoolLiteral() const;
+    bool isNumericLiteral() const;
+    bool isSafeUnquotedString() const;
+};
+
+} // namespace yamal_ns