Text Editor

User Guide

Welcome to the Smart Text and Code Editor! This is a lightweight, browser-based advanced editor that runs directly in your browser. Its core advantage lies in the ability to intelligently recognize different programming languages (such as Python, JavaScript, HTML, etc.) and provide syntax highlighting for code, making code structure clear and easy to read and review.

You don't need to install any software-simply open this page in your browser to start using it immediately.

How to View a File?

1. Click the [Choose File] button in the top left corner of the page.
2. In the pop-up window, select any code or text file you want to view (e.g., main.py, index.html, style.css).
3. The file content will immediately appear in the editing area below. Meanwhile, the program will automatically recognize the file's language based on its extension (e.g., .py) and apply the corresponding color highlighting.

(This is a schematic diagram showing the effect of Python code being properly highlighted)

Feature Details

The toolbar at the top of the editor provides rich functionality, allowing you to better view and process code.

Core Feature: Intelligent Syntax Highlighting

This is the most essential feature of this editor.

• Automatic Recognition: When you load a file (e.g., script.js), the editor detects the .js extension and automatically switches to JavaScript highlighting mode. Keywords (like function, const), strings, numbers, comments, etc., will be displayed in different colors.
• Manual Switching: If a file has no extension, or if you want to view the current text using another language's rules, you can click the [Language] dropdown menu and manually select your desired language (such as Python, HTML, JSON, etc.). The editor will immediately refresh and apply the new highlighting rules.

This feature significantly improves code readability, making code review and reading much easier.

Other Features

1. File Loading

• Click this button to upload and view local files. All operations are completed within your browser - files are not uploaded to any server, so you can use it with confidence.
• After loading a file, the filename will be displayed on the right side of the toolbar.

2. Theme Switching

• Provides two visual themes:
  • Dark (Default): Classic dark background, suitable for long coding sessions and more eye-friendly.
  • Light: Bright light background, clearer for reading in well-lit environments.
• You can switch between them at any time.

3. Content Search

• Enter the keywords you want to find in the [Search] input box.
• The editor's built-in search function will be activated (usually a search box pops up in the upper right corner of the editing area), and all matching words will be highlighted. You can use the "Previous/Next" navigation in the pop-up search box.

4. Mode Switching

• Read-only Mode (Default): This is the safe viewing mode. In this mode, you cannot modify the file content, preventing accidental keyboard input or changes. The button displays "Edit Mode" - click to switch.
• Edit Mode: In this mode, you can freely edit text as you would in a notepad. The button displays "Read-only Mode" - click to switch back to safe mode.
• Important Note: Any edits made in the browser are not automatically saved back to your local original file. This feature is mainly for temporary content modification and testing.

Summary

This editor is a powerful and convenient tool, especially suitable for developers, students, and technical personnel who need to quickly view different types of code files. Its core automatic syntax highlighting feature provides a reading experience far superior to ordinary text editors.