Add comprehensive Unicode handling guide and UTF-8 encoding configuration

.editorconfig

@@ -0,0 +1,57 @@
+# EditorConfig is awesome: https://EditorConfig.org
+
+# Top-most EditorConfig file
+root = true
+
+# All files - UTF-8 encoding
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# Markdown files
+[*.md]
+charset = utf-8
+trim_trailing_whitespace = false
+
+# Code files - 4 spaces
+[*.{py,rs,go,java,c,cpp,h,hpp}]
+charset = utf-8
+indent_style = space
+indent_size = 4
+
+# JavaScript/TypeScript - 2 spaces
+[*.{js,ts,jsx,tsx,json,yml,yaml}]
+charset = utf-8
+indent_style = space
+indent_size = 2
+
+# C# - 4 spaces
+[*.cs]
+charset = utf-8
+indent_style = space
+indent_size = 4
+
+# Configuration files
+[*.{toml,ini,cfg,conf}]
+charset = utf-8
+indent_style = space
+indent_size = 2
+
+# Shell scripts
+[*.sh]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 2
+
+# Makefiles
+[Makefile]
+charset = utf-8
+indent_style = tab
+
+# Batch files
+[*.{bat,cmd}]
+charset = utf-8
+end_of_line = crlf

.gitattributes

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+# Set default behavior to automatically normalize line endings
+* text=auto
+
+# Explicitly declare text files you want to always be normalized and converted
+# to native line endings on checkout
+*.md text
+*.txt text
+*.json text
+*.yml text
+*.yaml text
+
+# Declare files that will always have LF line endings on checkout
+*.sh text eol=lf
+
+# Denote all files that are truly binary and should not be modified
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.pdf binary
+
+# Source code files - ensure UTF-8 encoding
+*.py text working-tree-encoding=UTF-8
+*.rs text working-tree-encoding=UTF-8
+*.go text working-tree-encoding=UTF-8
+*.js text working-tree-encoding=UTF-8
+*.ts text working-tree-encoding=UTF-8
+*.jsx text working-tree-encoding=UTF-8
+*.tsx text working-tree-encoding=UTF-8
+*.cs text working-tree-encoding=UTF-8
+*.java text working-tree-encoding=UTF-8
+*.c text working-tree-encoding=UTF-8
+*.cpp text working-tree-encoding=UTF-8
+*.h text working-tree-encoding=UTF-8
+*.hpp text working-tree-encoding=UTF-8
+
+# Configuration files
+*.toml text working-tree-encoding=UTF-8
+*.ini text working-tree-encoding=UTF-8
+*.cfg text working-tree-encoding=UTF-8
+*.conf text working-tree-encoding=UTF-8
+
+# Documentation
+*.md text working-tree-encoding=UTF-8
+*.rst text working-tree-encoding=UTF-8
+*.adoc text working-tree-encoding=UTF-8

README.md

@@ -1 +1,46 @@
-# TypeAlias
+# TypeAlias
+
+A repository for documenting type alias best practices and Unicode handling across different programming languages.
+
+## 📚 Documentation
+
+- **[Unicode Handling Guide](UNICODE_HANDLING_GUIDE.md)** - Comprehensive guide for Unicode handling in Python, Rust, Go, JavaScript/TypeScript, and C#
+
+## 🌍 Unicode Best Practices
+
+This repository provides guidance on:
+
+- **Source Code Encoding**: UTF-8 as project standard
+- **String & Unicode**: Language-specific handling (Python, Rust, Go, JS/TS, C#)
+- **Normalization**: Unicode equivalence comparison techniques
+- **Internationalization**: Multi-language data structure patterns
+
+### Quick Overview
+
+Different languages handle Unicode differently:
+
+| Language | String Type | Encoding | Notes |
+|----------|------------|----------|-------|
+| Python 3 | `str` | Unicode | Unicode by default |
+| Rust | `String`/`&str` | UTF-8 | Guaranteed valid UTF-8 |
+| Go | `string` | Byte sequence | Conventionally UTF-8 |
+| JavaScript/TypeScript | `string` | UTF-16 | Beware of surrogate pairs |
+| C# / .NET | `string` | UTF-16 | Beware of surrogate pairs |
+
+### Key Considerations
+
+1. **Encoding**: Always use UTF-8 for source files and data exchange
+2. **Normalization**: Use NFC/NFD normalization for string comparison
+3. **Code Points vs Bytes**: Understand the difference between byte length and character count
+4. **Emojis & Combining Characters**: Be aware of grapheme clusters and surrogate pairs
+5. **Localization Structure**: Use `Dictionary<Locale, TokenMap>` pattern for multi-language support
+
+For detailed information, examples, and best practices, see the [Unicode Handling Guide](UNICODE_HANDLING_GUIDE.md).
+
+## 🚀 Getting Started
+
+The documentation in this repository is applicable to any project that needs to handle Unicode text properly. Choose your language and follow the relevant section in the guide.
+
+## 📖 Contributing
+
+Contributions are welcome! Please ensure all documentation files are saved in UTF-8 encoding.