MELFA-Basic language extension

Mitsubishi robot programming language support for VS Code

Open melfa codes in VS Code, write then jump to RT Toolbox for upload.

Features

• Syntax highlight
• Snippets
• Custom color theme
• 2 type formatters (additional extension required)

Upcoming features:

• [ ] Selectable label closing in settings

Workflow

Create a new workspace in RT Toolbox, then open the prg file with VS Code

or Select an existing program for modification.

Format code to get rid of the line numbers.

Write your program. After finishing your program, run the deformer to apply back the line numbers (Toolbox will automatically update the ones).

Open the file in RT Toolbox, then upload to the robot.

Requirements

• Python (or you can use formatter.exe instead)
• Custom Local Formatters (for running the 'deformer' in VS Code)

Setup

Install from marketplace

or

Manual installation:

Clone the repo to C:\Users\%userprofile%\AppData\Local\Programs\Microsoft VS Code\resources\app\extensions\

Activate theme

Ctrl + Shift + P --> Preferences: Color Theme --> Dark Theme for MELFA-Basic

Setup 'deformer'

Install Custom Local Formatters

Open settings.json ([Ctrl + , ] --> custom local formatters --> edit in settings.json)

Paste:

"customLocalFormatters.formatters": [
        {
            "command":"python \"%localappdata%\\Programs\\Microsoft VS Code\\resources\\app\\extensions\\MELFA-Basic\\formatter\\deformerV2.py\"",
            "languages": ["melfa-basic"]
        }
    ],

Deformer usage:

Ctrl + Shift + P --> Format document with... --> Custom Local Formatters

How formatter works

• Removes the line numbers and ' in empty lines
• Adjust spaces

Indent with the following logic:

• Standard indentation rules for conditions and loops
• Indent label based subroutines with '--- endings

Deformer

Formats the code for RT Toolbox.

• Insert line numbers (Toolbox will readjust)
• Comment empty lines so Toolbox won't delete them

Please open an issue if you found bugs or suggest features.