linew

A simple and efficient line wrapping tool for text files written in Go.

Features

• Wrap long lines at a specified width (default: 80 characters)
• Preserve indentation when wrapping
• Process files or standard input
• Output to files or standard output
• Handle Unicode text properly

Installation

go install github.com/rRateLimit/linew/cmd/linew@latest

Or build from source:

git clone https://github.com/rRateLimit/linew.git
cd linew
go build -o linew cmd/linew/main.go

Usage

linew [options] [file]

Options

• -w, --width: Maximum width for line wrapping (default: 80)
• -i, --indent: Preserve indentation (default: true)
• --no-indent: Do not preserve indentation
• -o, --output: Output file (default: stdout)
• -h, --help: Show help message

Examples

Wrap lines at 80 characters (default):

linew input.txt

Wrap lines at 100 characters:

linew -w 100 input.txt

Process from stdin and output to file:

cat long_text.txt | linew -o wrapped.txt

Wrap without preserving indentation:

linew --no-indent input.txt

How it Works

The tool reads text line by line and:

1. Splits lines that exceed the specified width
2. Preserves word boundaries when possible
3. Maintains indentation if enabled
4. Breaks very long words that exceed the width limit

Development

Run tests:

go test ./...

Build:

go build -o linew cmd/linew/main.go