[Feat] 详细区分左值(LvObject)与右值(RvObject -> ObjectPtr)

[Impl] 重构evaluator.cpp + hpp 全部
[Feat] 增加对于IndexExpr的解析
[Fix][Impl] 现在点运算符不由BinaryExpr负责,增加MemberExpr,单独实现解析
[Impl] 项目目录全部翻修, src/目录下单独文件夹放置每一个模块

src/Utils/utils.hpp

@@ -0,0 +1,109 @@
+#pragma once
+#pragma once
+#include <Core/fig_string.hpp>
+#include <string>
+#include <locale>
+#include <cwctype>
+#include <vector>
+#include <algorithm>
+
+namespace Fig::Utils
+{
+    inline std::u32string utf8ToUtf32(const FString &s)
+    {
+        std::u32string result;
+        size_t i = 0;
+        while (i < s.size())
+        {
+            char32_t codepoint = 0;
+            unsigned char c = static_cast<unsigned char>(s[i]);
+
+            if (c < 0x80)
+            {
+                codepoint = c;
+                i += 1;
+            }
+            else if ((c >> 5) == 0x6)
+            {
+                codepoint = ((c & 0x1F) << 6) | (static_cast<unsigned char>(s[i + 1]) & 0x3F);
+                i += 2;
+            }
+            else if ((c >> 4) == 0xE)
+            {
+                codepoint = ((c & 0x0F) << 12) | ((static_cast<unsigned char>(s[i + 1]) & 0x3F) << 6) | (static_cast<unsigned char>(s[i + 2]) & 0x3F);
+                i += 3;
+            }
+            else if ((c >> 3) == 0x1E)
+            {
+                codepoint = ((c & 0x07) << 18) | ((static_cast<unsigned char>(s[i + 1]) & 0x3F) << 12) | ((static_cast<unsigned char>(s[i + 2]) & 0x3F) << 6) | (static_cast<unsigned char>(s[i + 3]) & 0x3F);
+                i += 4;
+            }
+            else
+            {
+                i += 1; // 跳过非法字节
+                continue;
+            }
+            result.push_back(codepoint);
+        }
+        return result;
+    }
+
+    inline FString utf32ToUtf8(const std::u32string &s)
+    {
+        FString result;
+        for (char32_t cp : s)
+        {
+            if (cp < 0x80)
+            {
+                result.push_back(static_cast<char8_t>(cp));
+            }
+            else if (cp < 0x800)
+            {
+                result.push_back(static_cast<char8_t>((cp >> 6) | 0xC0));
+                result.push_back(static_cast<char8_t>((cp & 0x3F) | 0x80));
+            }
+            else if (cp < 0x10000)
+            {
+                result.push_back(static_cast<char8_t>((cp >> 12) | 0xE0));
+                result.push_back(static_cast<char8_t>(((cp >> 6) & 0x3F) | 0x80));
+                result.push_back(static_cast<char8_t>((cp & 0x3F) | 0x80));
+            }
+            else
+            {
+                result.push_back(static_cast<char8_t>((cp >> 18) | 0xF0));
+                result.push_back(static_cast<char8_t>(((cp >> 12) & 0x3F) | 0x80));
+                result.push_back(static_cast<char8_t>(((cp >> 6) & 0x3F) | 0x80));
+                result.push_back(static_cast<char8_t>((cp & 0x3F) | 0x80));
+            }
+        }
+        return result;
+    }
+
+    inline FString toLower(const FString &s)
+    {
+        std::u32string u32 = utf8ToUtf32(s);
+        std::locale loc("");
+        for (auto &ch : u32)
+        {
+            ch = std::towlower(ch);
+        }
+        return utf32ToUtf8(u32);
+    }
+
+    inline FString toUpper(const FString &s)
+    {
+        std::u32string u32 = utf8ToUtf32(s);
+        std::locale loc("");
+        for (auto &ch : u32)
+        {
+            ch = std::towupper(ch);
+        }
+        return utf32ToUtf8(u32);
+    }
+
+    template <class T>
+    bool vectorContains(const T &t, const std::vector<T> v)
+    {
+        return std::find(v.begin(), v.end(), t) != v.end();
+    }
+} // namespace Fig::Utils