scad-format 0.1.0

A code formatter for OpenSCAD files, similar to clang-format

scad-format

A code formatter for OpenSCAD files, similar to clang-format.

Features

• Format OpenSCAD source code with configurable style options
• Supports .scad-format configuration files (clang-format style syntax)
• Command-line interface compatible with clang-format workflows
• Can be used as a Python module or standalone script
• Supports piping, in-place editing, and batch processing

Installation

pip install scad-format

Or install from source:

git clone https://github.com/ashleyharris-maptek-com-au/scad-format
cd scad-format
pip install -e .

Usage

Command Line

# Format a file and print to stdout
scad-format myfile.scad

# Format in place
scad-format -i myfile.scad

# Format multiple files in place
scad-format -i *.scad

# Read from stdin
cat myfile.scad | scad-format

# Use specific style
scad-format --style="{IndentWidth: 2}" myfile.scad

# Use config file from directory tree
scad-format --style=file myfile.scad

# Dry run (show what would change)
scad-format -n myfile.scad

# Dump current config
scad-format --dump-config

As a Python Module

import scad_format

# Simple formatting
code = "module foo(){cube(1);}"
formatted = scad_format.format(code)
print(formatted)

# With custom configuration
from scad_format import FormatConfig, format_code

config = FormatConfig(IndentWidth=2, UseTab="Never")
formatted = format_code(code, config)

# Format a file
from scad_format import format_file

formatted = format_file("myfile.scad")

# Format a file in place
format_file("myfile.scad", in_place=True)

As a Standalone Script

python scad-format.py myfile.scad
python scad-format.py -i myfile.scad
cat myfile.scad | python scad-format.py

Configuration

Create a .scad-format file in your project directory (searches parent directories like clang-format):

---
# Indentation
IndentWidth: 4
TabWidth: 4
ContinuationIndentWidth: 4
UseTab: Never

# Brace style: Attach, Allman, Linux, Mozilla, Stroustrup, WebKit, GNU, Whitesmiths
BreakBeforeBraces: Attach

# Line endings: LF, CRLF, DeriveLF, DeriveCRLF
LineEnding: DeriveLF

# Optional settings
ColumnLimit: 0
SpaceAfterComma: true
SpaceBeforeParens: false
SpaceInsideParens: false
SpaceInsideBrackets: false
SpaceInsideBraces: true
SpaceAroundOperators: true
...

Configuration Options

Option	Type	Default	Description
IndentWidth	int	4	Number of spaces per indentation level
TabWidth	int	4	Width of a tab character
ContinuationIndentWidth	int	4	Indent for continuation lines
UseTab	enum	Never	Tab usage: Never, ForIndentation, Always
BreakBeforeBraces	enum	Attach	Brace breaking style
LineEnding	enum	DeriveLF	Line ending style
ColumnLimit	int	0	Max line length (0 = no limit)
SpaceAfterComma	bool	true	Add space after commas
SpaceBeforeParens	bool	false	Add space before parentheses
SpaceInsideParens	bool	false	Add space inside parentheses
SpaceInsideBrackets	bool	false	Add space inside brackets
SpaceInsideBraces	bool	true	Add space inside braces
SpaceAroundOperators	bool	true	Add space around operators

Brace Breaking Styles

• Attach: module foo() { - Brace on same line
• Allman: Brace on new line, aligned with statement
• Linux: Like Attach, but break before function definitions
• Stroustrup: Like Attach, but break before function definitions and catch
• GNU: Always break, braces are indented

Development

# Install dev dependencies
pip install -e ".[dev]"

# Run tests
pytest

# Run tests with coverage
pytest --cov=scad_format

License

MIT License