Overpunch

Simple module for parsing and formatting numbers in signed overpunch format.

Signed overpunch is a code used to indicate the sign of a number by replacing the last digit with a signed overpunch code. For example, -45 would be encoded as "4N".

Sign	Digit	Code
+	0	{
+	1	A
+	2	B
+	3	C
+	4	D
+	5	E
+	6	F
+	7	G
+	8	H
+	9	I
-	0	}
-	1	J
-	2	K
-	3	L
-	4	M
-	5	N
-	6	O
-	7	P
-	8	Q
-	9	R

Installation

Add this line to your application's Gemfile:

gem "overpunch"

And then execute:

$ bundle

Or install it yourself as:

$ gem install overpunch

Usage

require "overpunch"

Overpunch.parse("032B")
# => 322

Overpunch.parse("1}")
# => -10

Overpunch.format(110)
# => "11{"

Overpunch.format(-272)
# => "27K"

Overpunch.format(20, width: 6)
# => "00002{"

Requirements

• Ruby 2.0.0 or later

Contributing

1. Fork it ( http://github.com/johncarney/overpunch/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request