simple_env

Documentation | GitHub

SCOOP-compatible environment variable access for Eiffel.

Part of the Simple Eiffel ecosystem.

Status

Production

Overview

SIMPLE_ENV provides direct Win32 API calls with inline C for reliable, thread-safe environment manipulation. Unlike EXECUTION_ENVIRONMENT, it has no shared state issues.

local
    env: SIMPLE_ENV
do
    create env
    if attached env.get ("PATH") as path then
        print (path)
    end
    env.set ("MY_VAR", "my_value")
    print (env.expand ("%USERPROFILE%\Documents"))
end

Features

• Get & Set - Read, write, delete environment variables
• String Expansion - Expand %VAR% references in paths
• Enumeration - List all variables or filter by prefix
• SCOOP Safe - No shared state, concurrent-ready
• Array Access - Use env["PATH"] notation

Installation

1. Set environment variable (one-time setup for all simple_* libraries):

export SIMPLE_EIFFEL=D:\prod

2. Add to ECF:

<library name="simple_env" location="$SIMPLE_EIFFEL/simple_env/simple_env.ecf"/>

Platform

Windows (uses Win32 API)

License

MIT License