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tableau

0.0.3
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  • License MIT

Construct rows and columns from an alphabet with which one can encrypt/decrypt information from

Package Exports

  • tableau

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (tableau) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

tableau

Construct rows and columns from an alphabet with which one can encrypt/decrypt information from

install

npm:

$ npm install tableau

component:

$ component install jwerle/tableau

usage

var tableau = require('tableau')
var alpha = 'abcdefghijklmnopqrstuvwxyz'.split('');
var mat = tableau(alpha);
var out = mat.reduce(function (p, c) {
  return p + c.join(' | ') + '\n';
}, "");

console.log(out);

...yields:

a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z
b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a
c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b
d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c
e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d
f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e
g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f
h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g
i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h
j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i
k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j
l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k
m | n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l
n | o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m
o | p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n
p | q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o
q | r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p
r | s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q
s | t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r
t | u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s
u | v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t
v | w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u
w | x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v
x | y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w
y | z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x
z | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y

A command line utility is also available. It can be used as such:

$ tableau
a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z |
b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z | a |

...

You can set the algorithm with the --algo=expr option:

$ tableau --algo='((l - x) + y) % l'
a | z | y | x | w | v | u | t | s | r | q | p | o | n | m | l | k | j | i | h | g | f | e | d | c | b |
b | a | z | y | x | w | v | u | t | s | r | q | p | o | n | m | l | k | j | i | h | g | f | e | d | c |

...

You can format the output with the --format=format option:

$ tableau --format='[ %s ]'
[ a ][ b ][ c ][ d ][ e ][ f ][ g ][ h ][ i ][ j ][ k ][ l ][ m ][ n ][ o ][ p ][ q ][ r ][ s ][ t ][ u ][ v ][ w ][ x ][ y ][ z ]
[ b ][ c ][ d ][ e ][ f ][ g ][ h ][ i ][ j ][ k ][ l ][ m ][ n ][ o ][ p ][ q ][ r ][ s ][ t ][ u ][ v ][ w ][ x ][ y ][ z ][ a ]

...

The alphabet can be overrided with --alpha=alpha option:

$ tableau --alpha=123
1 | 2 | 3 |
2 | 3 | 1 |
3 | 1 | 2 |

api

table(alpha[,algo])

  • alpha - Alphabet array of characters to construct a table with
  • algo(x, y, l) - Function for determining the character in alpha for each cell in column and row where: x is current column in row, y is current row, and l is row length. The default is return (x + y) % l; which builds a Vigenère Cipher tableau.

license

MIT