SE Language for Visual Studio Code

繁體中文版

Official Visual Studio Code support for SE source files (.se). Version 0.7.5 synchronizes module completion, member signatures, and syntax highlighting with the expanded SE runtime. The bundled syntax guide and live compiler diagnostics are included.

Core features

SE .se file recognition and TextMate syntax highlighting
indentation support for SE blocks
snippets for common language constructs
completion for every current built-in module after use
member IntelliSense for all current built-in runtime modules and aliases
local completion for variables, functions and user-defined types
module/member hover documentation and low-punctuation signatures
hover information
Go to Definition and Find References within the current file
Outline / Breadcrumb symbols
low-punctuation function signature help
live se check diagnostics while typing, with red squiggles and Problems entries
commands for running, terminal checking, Problems checking and building the current SE file
bundled Traditional Chinese syntax guide via SE: Open Syntax Guide
configurable path to the se executable and diagnostic delay

Syntax highlighting

The grammar covers comments, strings/escapes, numeric and duration literals, operators, declarations, control flow, core types, standard modules and type annotations.

Grammar source:

vscode/syntaxes/se.tmLanguage.json

TextMate scope:

source.se

The same grammar is intended to remain suitable as the upstream grammar source for a future GitHub Linguist submission.

IntelliSense

Prefix completion narrows the language-aware candidate set as you type. For example, collections. can offer collection helpers after importing the module.

use collections

collections.

User-defined members can also be inferred from declarations in the current file:

type Player
    name = ""
    hp = 100

    make hit damage
        hp -= damage

player = Player
player.

The extension can suggest name, hp, and hit from the local Player definition.

The expanded modules include data (array, matrix, table), formats (toml, yaml, xml, markdown), web (http_server, websocket, session), security (crypto, jwt), AI (ai, ml, tensor, embedding), and browser scenes (canvas, sprite, camera). Their editor completions match the functions currently implemented by the runtime. Some runtime operations need Python or an optional Python package; see the module reference for their requirements and signatures.

The current editor analysis is intentionally lightweight and runs inside the extension. A future full LSP can reuse compiler/parser/checker semantics for deeper cross-file analysis without changing the user-facing editor model.

Live diagnostics

The extension uses the real SE compiler/checker instead of duplicating the language rules in JavaScript. By default, an edited saved file is checked after a short debounce. Dirty editor contents are written to a temporary sibling .se file so imports continue resolving relative to the same project directory.

Compiler errors are mapped into VS Code Diagnostics and appear as red squiggles and in the Problems panel.

Settings:

se.diagnostics.enabled
se.diagnostics.delay
se.executablePath

Use SE: Check File Problems to trigger the diagnostic checker immediately.

Built-in syntax guide

Run SE: Open Syntax Guide from the Command Palette. The extension ships TUTORIAL-zh-TW.md, covering basic syntax, functions, types, modules, error handling, async/threading, SQLite, networking, tests, IntelliSense and diagnostics.

Commands

From the Command Palette:

SE: Run File
SE: Check File Problems
SE: Check File in Terminal
SE: Build File
SE: Open Syntax Guide

The extension expects se to be available in PATH. If it is installed elsewhere, configure SE: Executable Path in VS Code settings.

Package locally

From the repository root:

cd vscode
npm install
npx vsce package

Install the generated .vsix with VS Code's Install from VSIX... command or the code --install-extension CLI.

The package filename/version follows the extension's current package metadata; do not hard-code an old version when following these instructions.

SE Language

FunLearn Studio