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book/node_modules/direction/LICENSE

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+(The MIT License)
+
+Copyright (c) 2014 Titus Wormer <tituswormer@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

book/node_modules/direction/Readme.md

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+# direction [![Build Status](https://img.shields.io/travis/wooorm/direction.svg?style=flat)](https://travis-ci.org/wooorm/direction) [![Coverage Status](https://img.shields.io/coveralls/wooorm/direction.svg?style=flat)](https://coveralls.io/r/wooorm/direction?branch=master)
+
+Detect direction: left-to-right, right-to-left, or neutral.
+
+## Installation
+
+npm:
+```bash
+$ npm install direction
+```
+
+Component:
+```bash
+$ component install wooorm/direction
+```
+
+Bower:
+```bash
+$ bower install direction
+```
+
+## Usage
+
+```js
+var direction = require('direction');
+
+direction("A"); // "ltr"
+direction("anglais"); // "ltr"
+direction("بسيطة"); // "rtl"
+direction("@"); // "neutral"
+```
+
+## CLI
+
+Install:
+```bash
+$ npm install direction --global
+```
+
+Usage:
+```
+Usage: direction [options] words...
+
+Detect directionality: left-to-right, right-to-left, or neutral
+
+Options:
+
+  -h, --help           output usage information
+  -v, --version        output version number
+
+Usage:
+
+# output direction of given values
+$ direction @
+# neutral
+
+# output direction from stdin
+$ echo "الانجليزية" | direction
+# rtl
+```
+
+## License
+
+MIT © [Titus Wormer](http://wooorm.com)

book/node_modules/direction/cli.js

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+#!/usr/bin/env node
+'use strict';
+
+/*
+ * Dependencies.
+ */
+
+var direction,
+    pack;
+
+direction = require('./');
+pack = require('./package.json');
+
+/*
+ * Arguments.
+ */
+
+var argv;
+
+argv = process.argv.slice(2);
+
+/*
+ * Command.
+ */
+
+var command;
+
+command = Object.keys(pack.bin)[0];
+
+/**
+ * Help.
+ *
+ * @return {string}
+ */
+function help() {
+    return [
+        '',
+        'Usage: ' + command + ' [options] words...',
+        '',
+        pack.description,
+        '',
+        'Options:',
+        '',
+        '  -h, --help           output usage information',
+        '  -v, --version        output version number',
+        '',
+        'Usage:',
+        '',
+        '# output direction of given values',
+        '$ ' + command + ' @',
+        '# neutral',
+        '',
+        '# output direction from stdin',
+        '$ echo "الانجليزية" | ' + command,
+        '# rtl'
+    ].join('\n  ') + '\n';
+}
+
+/*
+ * Program.
+ */
+
+if (
+    argv.indexOf('--help') === 0 ||
+    argv.indexOf('-h') === 0
+) {
+    console.log(help());
+} else if (
+    argv.indexOf('--version') === 0 ||
+    argv.indexOf('-v') === 0
+) {
+    console.log(pack.version);
+} else if (argv[0]) {
+    console.log(direction(argv.join(' ')));
+} else {
+    process.stdin.resume();
+    process.stdin.setEncoding('utf8');
+    process.stdin.on('data', function (data) {
+        console.log(direction(data.trim()));
+    });
+}

book/node_modules/direction/index.js

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+'use strict';
+
+var GROUP_LEFT_TO_RIGHT,
+    GROUP_RIGHT_TO_LEFT,
+    EXPRESSION_LEFT_TO_RIGHT,
+    EXPRESSION_RIGHT_TO_LEFT;
+
+/*
+ * Character ranges of left-to-right characters.
+ */
+
+GROUP_LEFT_TO_RIGHT = 'A-Za-z\u00C0-\u00D6\u00D8-\u00F6' +
+    '\u00F8-\u02B8\u0300-\u0590\u0800-\u1FFF\u200E\u2C00-\uFB1C' +
+    '\uFE00-\uFE6F\uFEFD-\uFFFF';
+
+/*
+ * Character ranges of right-to-left characters.
+ */
+
+GROUP_RIGHT_TO_LEFT = '\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC';
+
+/*
+ * Expression to match a left-to-right string.
+ *
+ * Matches the start of a string, followed by zero or
+ * more non-right-to-left characters, followed by a
+ * left-to-right character.
+ */
+
+EXPRESSION_LEFT_TO_RIGHT = new RegExp(
+    '^[^' + GROUP_RIGHT_TO_LEFT + ']*[' + GROUP_LEFT_TO_RIGHT + ']'
+);
+
+/*
+ * Expression to match a right-to-left string.
+ *
+ * Matches the start of a string, followed by zero or
+ * more non-left-to-right characters, followed by a
+ * right-to-left character.
+ */
+
+EXPRESSION_RIGHT_TO_LEFT = new RegExp(
+    '^[^' + GROUP_LEFT_TO_RIGHT + ']*[' + GROUP_RIGHT_TO_LEFT + ']'
+);
+
+/**
+ * Detect the direction of text.
+ *
+ * @param {string} value - value to stringify and check.
+ * @return {string} - One of `"rtl"`, `"ltr"`, or
+ *   `"neutral"`.
+ */
+function direction(value) {
+    value = value.toString();
+
+    if (EXPRESSION_RIGHT_TO_LEFT.test(value)) {
+        return 'rtl';
+    }
+
+    if (EXPRESSION_LEFT_TO_RIGHT.test(value)) {
+        return 'ltr';
+    }
+
+    return 'neutral';
+}
+
+/*
+ * Expose `direction`.
+ */
+
+module.exports = direction;

book/node_modules/direction/package.json

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+{
+  "name": "direction",
+  "version": "0.1.5",
+  "description": "Detect directionality: left-to-right, right-to-left, or neutral",
+  "license": "MIT",
+  "keywords": [
+    "writing",
+    "system",
+    "direction",
+    "directionality",
+    "rtl",
+    "ltr",
+    "cli",
+    "bin"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/wooorm/direction.git"
+  },
+  "author": "Titus Wormer <tituswormer@gmail.com>",
+  "bin": {
+    "direction": "cli.js"
+  },
+  "devDependencies": {
+    "eslint": "^0.10.0",
+    "istanbul": "^0.3.0",
+    "jscs": "^1.0.0",
+    "jscs-jsdoc": "^0.3.2",
+    "mocha": "^2.0.0"
+  },
+  "scripts": {
+    "test-lib": "_mocha --check-leaks test.js",
+    "test-cli": "bash ./test.sh",
+    "test-coveralls": "istanbul cover _mocha --report lcovonly -- --check-leaks test.js",
+    "test-travis": "npm run test-cli && npm run test-coveralls",
+    "test": "npm run test-lib && npm run test-cli",
+    "coverage": "istanbul cover _mocha -- -- test.js",
+    "lint-api": "eslint index.js",
+    "lint-cli": "eslint cli.js",
+    "lint-test": "eslint --env mocha test.js",
+    "lint-style": "jscs --reporter inline index.js cli.js test.js",
+    "lint": "npm run lint-api && npm run lint-cli && npm run lint-test && npm run lint-style",
+    "make": "npm run lint && npm run coverage"
+  }
+}

book/node_modules/direction/test.sh

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+#!/bin/sh
+#!/bin/bash
+
+typeset -i tests=0
+
+function it {
+    let tests+=1;
+    description="$1";
+}
+
+function assert {
+    if [[ "$1" == "$2" ]]; then
+        printf "\033[32m.\033[0m";
+    else
+        printf "\033[31m\nFAIL: $description\033[0m: '$1' != '$2'\n";
+        exit 1
+    fi
+}
+
+it "Should accept a value"
+    result=`./cli.js "direction"` 2> /dev/null
+    assert $result "ltr"
+
+it "Should accept a right-to-left value"
+    result=`./cli.js "لانجليزية"` 2> /dev/null
+    assert $result "rtl"
+
+it "Should accept a neutral value"
+    result=`./cli.js "@!"` 2> /dev/null
+    assert $result "neutral"
+
+it "Should accept multiple values"
+    result=`./cli.js "direction another"` 2> /dev/null
+    assert $result "ltr"
+
+it "Should accept multiple arguments"
+    result=`./cli.js "direction" "another"` 2> /dev/null
+    assert $result "ltr"
+
+it "Should accept a value over stdin"
+    result=`echo "direction" | ./cli.js` 2> /dev/null
+    assert $result "ltr"
+
+it "Should accept multiple values over stdin"
+    result=`echo "direction another" | ./cli.js` 2> /dev/null
+    assert $result "ltr"
+
+it "Should accept \`--help\`"
+    code=0
+    ./cli.js --help > /dev/null 2>&1 || code=$?
+    assert $code 0
+
+it "Should accept \`-h\`"
+    code=0
+    ./cli.js -h > /dev/null 2>&1 || code=$?
+    assert $code 0
+
+it "Should accept \`--version\`"
+    code=0
+    ./cli.js --version > /dev/null 2>&1 || code=$?
+    assert $code 0
+
+it "Should accept \`-v\`"
+    code=0
+    ./cli.js -v > /dev/null 2>&1 || code=$?
+    assert $code 0
+
+printf "\033[32m\n(✓) Passed $tests assertions without errors\033[0m\n";
+
+exit 0