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// # hexy.js -- utility to create hex dumps 

// `hexy` is a javascript library that's easy to use to create hex dumps. It

// works well in node and has cursory browser (more below) support. It contains a

// number of options to configure how the hex dump will end up looking.

// It should create a pleasant looking hex dumb by default:

//            b = new Buffer("\000\001\003\005\037\012\011bcdefghijklmnopqrstuvwxyz0123456789")

//             // or String or Array containing numbers ( bytes, i.e. < 0xFF )

//     00000000: 0001 0305 1f0a 0962 6364 6566 6768 696a  .......bcdefghij

//     00000010: 6b6c 6d6e 6f70 7172 7374 7576 7778 797a  klmnopqrstuvwxyz

//     00000020: 3031 3233 3435 3637 3839                 0123456789

//   * Presence of the ASCII annotation in the right column.

// This means it's easy to generate exciting dumps like:

//     0000000: 0001 0305 1f0a 0962  .... ...b 

//     0000008: 6364 6566 6768 696a  cdef ghij 

//     0000010: 6b6c 6d6e 6f70 7172  klmn opqr 

//     0000018: 7374 7576 7778 797a  stuv wxyz 

//     0000020: 3031 3233 3435 3637  0123 4567 

//     0000000: 00 01 03 05 1f 0a 09 62   63 64 65 66 67 68 69 6a 

//     0000010: 6b 6c 6d 6e 6f 70 71 72   73 74 75 76 77 78 79 7a 

//     0000020: 30 31 32 33 34 35 36 37   38 39

// Currently, input should be one of the following:

//   - an `Array` containing `Number`s. These should fit into

//     8 bits, i.e. be smaller than 255. Larger values are truncated

// Formatting options are configured by passing a `format` object to the `hexy` function:

//         format.width = width // how many bytes per line, default 16

//         format.numbering = n // ["hex_bytes" | "none"],  default "hex_bytes"

//         format.format = f    // ["fours"|"twos"|"none"], how many nibbles per group

//                              //                          default "fours"

//         format.caps = c      // ["lower"|"upper"],       default lower

//         format.annotate=a    // ["ascii"|"none"], ascii annotation at end of line?

//                              //                          default "ascii"

//         format.prefix=p      // <string> something pretty to put in front of each line

//                              //                          default ""

//         format.indent=i      // <num> number of spaces to indent

//                              //                          default 0

//         format.html=true     // funky html divs 'n stuff! experimental.

//                              //                          default: false

//     console.log(hexy.hexy(buffer, format))

// In case you're really nerdy, you'll have noticed that the defaults correspond

// This will install the lib which you'll be able to use like so:

//         buf  = // get Buffer from somewhere,

// It will also install `hexy` into your path in case you're totally fed up

// If you don't like `npm`, grab the source from github:

//     http://github.com/a2800276/hexy.js

  self.buffer    = buffer // magic string conversion here?

  self.width     = parseInt(config.width) || 16

  self.numbering = config.numbering == "none"  ? "none" : "hex_bytes"

  self.caps        = config.caps        == "upper" ? "upper" : "lower"

  self.annotate    = config.annotate    == "none"  ? "none"  : "ascii"

  self.prefix      = config.prefix      || ""

  self.indent      = config.indent      || 0

  self.html        = config.html        || false

  self.offset      = config.offset      || 0

  self.length      = config.length      || -1

  self.display_offset = config.display_offset || 0

    if (self.offset < self.buffer.length) {

      self.buffer = self.buffer.slice(self.offset)

    if (self.length <= self.buffer.length) {

      self.buffer = self.buffer.slice(0,self.length)

    if (self.html) { str += "<div class='hexy'>\n"}

    //split up into line of max `self.width`

    //lines().forEach(function(hex_raw, i)

    for (var i = 0; i!= line_arr.length; ++i) {

      //insert spaces every `self.format.twos` or fours

      } else if (self.format === "twos") {

      for (var j =0; j< hex.length; j+=howMany) {

      var addr = (i*self.width)+self.offset+self.display_offset;

        odd = i%2 == 0 ? " even" : "  odd"

        str += "<div class='"+pad(addr, 8)+odd+"'>"

      if (self.numbering === "hex_bytes") {

        str += pad(addr, 8) // padding...

          padlen = self.width*2 + self.width/2

          padlen = self.width*2 + Math.floor(self.width/2)

        var ascii = raw.replace(/[\000-\040\177-\377]/g, ".")

        if (self.html) {str += escape(ascii)}

    for (var i = 0; i<self.buffer.length ; i+=self.width) {

          end   = i+self.width >= self.buffer.length ? self.buffer.length : i+self.width,

          slice = self.buffer.slice(begin, end),

          hex   = self.caps === "upper" ? hexu(slice) : hexl(slice),

          raw   = slice.toString('ascii')

      if (self.buffer.constructor == Array) {

        raw = String.fromCharCode.apply(self, slice)

    for (var i=0; i!=buffer.length; ++i) {

      if (buffer.constructor == String) {

        str += pad(buffer.charCodeAt(i), 2)

    for (var n = len - s.length; n!=0; --n) {

    for (var n = len - s.length; n>0; --n) {

// This is probably not the prettiest or coolest way to to determine runtime

// environment. It seems to work and Im not up to the task figuring out what

// the module system du jour is and how to interface with it ...

// If anyone wants to fix this to include this module "properly", I'm more than

  _exp = arg // or this or somethings. ...

  "description" : "hexdump, binary pretty-printing",

  "author" : "Tim Becker <tim.becker@kuriositaet.de>",

    "url": "git://github.com/a2800276/hexy.js.git"

[![build status](https://secure.travis-ci.org/a2800276/hexy.js.png)](http://travis-ci.org/a2800276/hexy.js)

		{
		"name" : "hexy",
		"version" : "0.2.8",
		"version" : "0.2.9",
		"description" : "hexdump, binary pretty-printing",
		@@ -5,0 +5,0 @@ "author" : "Tim Becker <tim.becker@kuriositaet.de>",

		@@ -141,2 +141,3 @@ [![build status](https://secure.travis-ci.org/a2800276/hexy.js.png)](http://travis-ci.org/a2800276/hexy.js)
		* Michele Caini (https://github.com/skypjack)
		* Koen Houtman (https://github.com/automagisch)

		@@ -143,0 +144,0 @@ ## History

		@@ -104,2 +104,5 @@ var hexy = require("./hexy.js")
		console.log("failed:")
		console.log(hexy.hexy(should))
		console.log(hexy.hexy(is))
		console.log("==")
		console.log(should)
		@@ -169,2 +172,21 @@ console.log(is)

		// non numerical width
		failed += check(arr_e, hexy.hexy(arr, {width: "something"}))
		++total

		arr_e = `00000000: 0102 ..
		00000002: 030f ..
		`
		failed += check(arr_e, hexy.hexy(arr, {width: "2"}))
		++total

		arr_e = `00000000: 01 .
		00000001: 02 .
		00000002: 03 .
		00000003: 0f .
		`

		failed += check(arr_e, hexy.hexy(arr, {width: 1}))
		++total

		p("failed: "+failed+" of "+total)
		@@ -171,0 +193,0 @@

		@@ -176,3 +176,3 @@ // # hexy.js -- utility to create hex dumps
		self.buffer = buffer // magic string conversion here?
		self.width = config.width \|\| 16
		self.width = parseInt(config.width) \|\| 16
		self.numbering = config.numbering == "none" ? "none" : "hex_bytes"
		@@ -260,3 +260,3 @@
		case "fours":
		padlen = self.width*2 + self.width/2
		padlen = self.width*2 + Math.floor(self.width/2)
		break
		@@ -329,3 +329,3 @@ case "twos":
		var rpad = function(s, len) {
		for (var n = len - s.length; n!=0; --n) {
		for (var n = len - s.length; n>0; --n) {
		if (self.html) {
		@@ -332,0 +332,0 @@ s += " "

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