braces-be-gone's Introduction

Braces Be Gone

Get those pesky braces out of your face.

Example

The input file, Permuter.java:

public class Permuter
{
	private static void permute(int n, char[] a)
	{
		if (n == 0)
		{
			System.out.println(String.valueOf(a));
		}
		else
		{
			for (int i = 0; i <= n; i++)
			{
				permute(n-1, a);
				swap(a, n % 2 == 0 ? i : 0, n);
			}
		}
	}

	private static void swap(char[] a, int i, int j)
	{
		char saved = a[i];
		a[i] = a[j];
		a[j] = saved;
	}
}

Running BracesBeGone.hs Permuter.java prints:

public class Permuter                                          {
	private static void permute(int n, char[] a)           {
		if (n == 0)                                    {
			System.out.println(String.valueOf(a))  ;}
		else                                           {
			for (int i = 0; i <= n; i++)           {
				permute(n-1, a)                ;
				swap(a, n % 2 == 0 ? i : 0, n) ;}}}

	private static void swap(char[] a, int i, int j)       {
		char saved = a[i]                              ;
		a[i] = a[j]                                    ;
		a[j] = saved                                   ;}}

Usage

% BracesBeGone.hs --help
Braces Be Gone

Usage: BracesBeGone.hs [FILE] [-o|--output FILE] [--tab-width TABWIDTH]
                       [--min-line-width LINEWIDTH] [--brace-chars CHARS]

Available options:
  -h,--help                Show this help text
  FILE                     Input source FILE (default: stdin)
  -o,--output FILE         Write output to FILE (default: stdout)
  --tab-width TABWIDTH     Count tab characters as TABWIDTH spaces (default: 8)
  --min-line-width LINEWIDTH
                           Align braces at least to LINEWIDTH (default: 0)
  --brace-chars CHARS      Use CHARS as braces (default: "{};")

You'll need Haskell Stack to run this.