How to Handle Input When Running External Programs in Sublime Text?

How to Enable Input for Running Programs in Sublime Text

In Sublime Text, there is no built-in mechanism for handling input (e.g., through functions like Python's raw_input()) using external programs. However, there are several workarounds to facilitate input functionality.

SublimeREPL for Real-time Input

SublimeREPL is a popular Sublime Text plugin that allows for code interaction with a running interpreter. It provides the functionality to pass input to running programs in real-time. Follow these steps to use SublimeREPL:

1. Install SublimeREPL using Package Control.
2. Configure the Main.sublime-menu files to ensure your preferred interpreter runs correctly.
3. Press Ctrl Enter to open the REPL panel and interact with the program.

Custom Build Systems for Independent Interaction

If SublimeREPL does not suit your needs, creating a custom build system allows you to run your program independently and process input.

Windows Build System:

{
    "cmd": ["start", "cmd", "/k", "path/to/python.exe", "$file"],
    "selector": "source.python",
    "shell": true,
    "working_dir": "$file_dir",
    "env": {"PYTHONIOENCODING": "utf-8"}
}

Replace "path/to/python.exe" with the path to your Python executable. Press Ctrl B to build and run your program in a new cmd window.

macOS Build System:

{
    "shell_cmd": "osascript -e 'tell app \"Terminal\" to do script \"cd $file_path & python3 -u $file\"'",
    "working_dir": "$file_path",
    "selector": "source.python",
    "env": {"PYTHONIOENCODING": "utf-8"}
}

Specify your Python executable if it's not on your $PATH. Running the build system opens the program in a Terminal window.

Linux Build System:

{
    "shell_cmd": "gnome-terminal --working-directory=$file_path -- bash -c 'python3 -u \"$file\" & read -n 1 -s -r'",
    "working_dir": "$file_path",
    "selector": "source.python",
    "env": {"PYTHONIOENCODING": "utf-8"}
}

Hit any key to close the Terminal window after the program finishes running.

Terminus Plugin for Enhanced Interaction

Terminus is a versatile plugin that offers a comprehensive solution for managing input. It provides a graphical interface for interacting with your running program through the build panel, eliminating the need for custom build systems. Install Terminus using Package Control and create the following build system:

{
    "target": "terminus_exec",
    "cancel": "terminus_cancel_build",
    "cmd": [
        "/path/to/python", "-u", "$file"
    ],
    "working_dir": "$file_path",
    "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)&"
}

Configure Terminus as per its documentation to leverage its advanced capabilities.

By implementing these workarounds, you can effectively use input while running external programs in Sublime Text, enabling a more comprehensive coding experience.

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