Duso

Duso Extension for Zed

A comprehensive Zed editor extension for the Duso programming language - Scripted Intelligence for AI agents and automation.

Features

Syntax Highlighting

Full support for Duso 1.6.21 language syntax
Keywords: if/then/else/elseif/end, while, for, function, return, try/catch
80+ built-in functions including parallel, spawn, fetch, datastore, image processing, cryptography, and more
String templates with {{ expr }} syntax
Comments: // line and /* */ block comments
Regular expressions with ~ pattern ~ syntax

Language Server Protocol (LSP)

Real-time language features
Error checking and diagnostics
Auto-completion
Code navigation
Hover information
Document symbols and outline

Code Snippet

Quick insertion of common patterns
Functions, loops, conditionals
Parallel execution blocks
Try/catch error handling
Module imports and Claude integration

Smart Editing

Auto-closing brackets
Proper indentation for code blocks
Bracket matching
Code outline

Installation

From Zed Extensions

Open Zed
Go to Extensions
Search for "duso"
Click Install

From Source

cd ~/.zed/extensions
git clone https://github.com/duso-org/duso-zed.git

Requirements

Duso must be installed on your system. Get it from:
- Duso Homepage: Download and install binary
- Homebrew: brew tap duso-org/homebrew-duso && brew install duso
- GitHub Releases

The extension uses Duso's built-in LSP server (duso -lsp) for all language features.

Configuration

The extension works out of the box with no configuration needed. It automatically:

Recognizes .du files as Duso scripts
Launches the LSP server when needed
Applies syntax highlighting and smart indentation

Getting Started

Create a .du file:

touch hello.du

Write some Duso:

// Your first Duso script
print("Hello, Duso!")

// Use snippets for quick coding
// Type 'fn' and press Tab to create a function

Open the file in Zed - syntax highlighting and LSP features are automatically enabled.

Snippets

Trigger	Expansion
`fn`	function declaration
`if`	if statement
`ifelse`	if/else statement
`for`	for loop (range)
`forin`	for-in loop (iteration)
`while`	while loop
`try`	try/catch block
`parallel`	parallel execution block
`spawn`	spawn process
`require`	module import
`fetch`	HTTP fetch

Commands

The extension provides access to Duso's built-in documentation:

Right-click on any function name
Hover for information via LSP
Check the Duso documentation: duso -doc or duso -docserver

Learn Duso

Official Docs: duso -read (guides and reference)
Examples: duso -read examples/
Reference: duso -doc (built-in function reference)
Website: duso.rocks

Troubleshooting

"Duso not found" error

Make sure Duso is installed and available in your PATH:

which duso
duso -version

Syntax highlighting not working

Verify the file has a .du extension
Check that the Duso extension is enabled in Zed
Reload Zed (Cmd+Shift+P → "Revert to auto-saved copy" or restart)

LSP not responding

Check that Duso LSP works: duso -lsp (should start without errors, press Ctrl+C to stop)
Check Zed logs: View → Toggle Developer Console

Contributing

We'd love your contributions!

Duso Language - The main Duso repository

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.