/ usr / share / nodejs / source-map / lib / [ HOME SHELL ]

Name	Size	Permission
array-set.js	3.12 KB	-rw-r--r--
base64-vlq.js	4.6 KB	-rw-r--r--
base64.js	1.5 KB	-rw-r--r--
binary-search.js	4.15 KB	-rw-r--r--
mapping-list.js	2.28 KB	-rw-r--r--
quick-sort.js	3.53 KB	-rw-r--r--
source-map-consumer.js	39.61 KB	-rw-r--r--
source-map-generator.js	14.02 KB	-rw-r--r--
source-node.js	13.48 KB	-rw-r--r--
util.js	12.65 KB	-rw-r--r--

Code Editor : base64.js

/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');

/**
 * Encode an integer in the range of 0 to 63 to a single base 64 digit.
 */
exports.encode = function (number) {
  if (0 <= number && number < intToCharMap.length) {
    return intToCharMap[number];
  }
  throw new TypeError("Must be between 0 and 63: " + number);
};

/**
 * Decode a single base 64 character code digit to an integer. Returns -1 on
 * failure.
 */
exports.decode = function (charCode) {
  var bigA = 65;     // 'A'
  var bigZ = 90;     // 'Z'

var littleA = 97;  // 'a'
  var littleZ = 122; // 'z'

var zero = 48;     // '0'
  var nine = 57;     // '9'

var plus = 43;     // '+'
  var slash = 47;    // '/'

var littleOffset = 26;
  var numberOffset = 52;

// 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
  if (bigA <= charCode && charCode <= bigZ) {
    return (charCode - bigA);
  }

// 26 - 51: abcdefghijklmnopqrstuvwxyz
  if (littleA <= charCode && charCode <= littleZ) {
    return (charCode - littleA + littleOffset);
  }

// 52 - 61: 0123456789
  if (zero <= charCode && charCode <= nine) {
    return (charCode - zero + numberOffset);
  }

// 62: +
  if (charCode == plus) {
    return 62;
  }

// 63: /
  if (charCode == slash) {
    return 63;
  }

// Invalid base64 digit.
  return -1;
};

Urban Research Lab

The Urban Research Lab (URL) at IIIT-Delhi was established in 2020, during a time when the pandemic brought the complexities of urban life more visible than ever. What started as an initiative by faculty and students has grown into a collaborative space for critically exploring and reimagining the urban questions through research, dialogue, and interdisciplinary engagement.

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Code Editor : base64.js

Urban Research Lab