341 lines
9.3 KiB
JavaScript
341 lines
9.3 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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const random = require('../random')
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const make = require('../make')
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const utils = require('../utils')
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class text extends make {
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/**
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* Generate a random alphabetic character
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*/
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static alpha () {
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return String.fromCharCode(random.range('A'.charCodeAt(0), 'z'.charCodeAt(0)))
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}
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/**
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* Generate a random alphanumeric character
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*/
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static alphanum () {
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return String.fromCharCode(random.range('0'.charCodeAt(0), 'z'.charCodeAt(0)))
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}
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/**
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* Generate a random assignment operator
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*/
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static assignmentOperator () {
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return random.pick([
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'=', '+=', '-=', '*=', '/=', '%=', '**=', '<<=', '>>=', '>>>=', '&=', '^=', '|='
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])
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}
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/**
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* Generate a random arithmetic operator
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*/
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static arithmeticOperator () {
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return random.pick([
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'%', '-', '+', '*', '/'
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])
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}
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/**
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* Generate a random control character
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*/
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static controlChar () {
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return random.pick([
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'\b', '\t', '\n', '\v', '\f', '\r', '\0', '\c', '\a', '\e' // eslint-disable-line no-useless-escape
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])
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}
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/**
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* Generate a random digit
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*/
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static digit () {
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return String.fromCharCode(random.range('0'.charCodeAt(0), '9'.charCodeAt(0)))
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}
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/**
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* Generate a random line ending
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*/
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static lineEnd () {
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return random.pick([
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'\n', '\r', '\r\n', '\n\r'
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])
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}
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/**
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* Generate a random token
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*/
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static token () {
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return random.pick([
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'*', '+', '%', '-', '!', '^', ':', '|', '&', '<', '>', '.', '"',
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'#', ' ', ';', ',', '{', '}', '(', ')', '[', ']', '/', '\\', '/*', '*/'
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])
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}
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static charset () {
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return random.pick([
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'UTF-8', 'ISO-8859-1'
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])
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}
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static language () {
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return random.pick([
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// special casing for i, I, dotted/dotless variants
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['tr', 'az', 'crh', 'tt', 'ba'],
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// special casing rules: https://developer.mozilla.org/en/CSS/text-transform
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['nl', 'el', 'ga'],
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// special justification rules
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['ja', 'zh'],
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// tend to be RTL
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['ar', 'he'],
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// http://mxr.mozilla.org/mozilla-central/source/gfx/thebes/gfxAtomList.h
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['en', 'x-unicode', 'x-western', 'ja', 'ko', 'zh-cn', 'zh-hk', 'zh-tw', 'x-cyrillic', 'el', 'tr', 'he', 'ar', 'x-baltic', 'th', 'x-devanagari', 'x-tamil', 'x-armn', 'x-beng', 'x-cans', 'x-ethi', 'x-geor', 'x-gujr', 'x-guru', 'x-khmr', 'x-knda', 'x-mlym', 'x-orya', 'x-sinh', 'x-telu', 'x-tibt', 'ko-xxx', 'x-central-euro', 'x-symbol', 'x-user-def', 'az', 'ba', 'crh', 'tt'],
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// Seen in mxr
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['en-US', 'fr', 'fra', 'de', 'ru', 'en-us', 'is-IS', 'xyzzy']
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])
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}
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/**
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* Generate a random character that may affect layout
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*/
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static layoutCharCodes () {
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return String.fromCodePoint(
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random.pick([
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0, // null
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160, // non-breaking space
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0x005C, // backslash, but in some countries, represents local currency symbol (e.g. yen)
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0x00AD, // soft hyphen
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0x0BCC, // a Tamil character that is displayed as three glyphs
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// http://unicode.org/charts/PDF/U2000.pdf
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0x200B, // zero-width space
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0x200C, // zero-width non-joiner
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0x200D, // zero-width joiner
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0x200E, // left-to-right mark
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0x200F, // right-to-left mark
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0x2011, // non-breaking hyphen
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0x2027, // hyphenation point
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0x2028, // line separator
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0x2029, // paragraph separator
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0x202A, // left-to-right embedding
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0x202B, // right-to-left embedding
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0x202C, // pop directional formatting
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0x202D, // left-to-right override
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0x202E, // right-to-left override
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0x202F, // narrow no-break space
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0x2060, // word joiner
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0x2061, // function application (one of several invisible mathematical operators)
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// http://unicode.org/charts/PDF/U3000.pdf
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0x3000, // ideographic space (CJK)
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// http://unicode.org/charts/PDF/U0300.pdf
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0x0301, // combining acute accent (if it appears after "a", it turns into "a" with an accent)
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// Arabic has the interesting property that most letters connect to the next letter.
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// Some code calls this "shaping".
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0x0643, // arabic letter kaf
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0x0645, // arabic letter meem
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0x06CD, // arabic letter yeh with tail
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0xFDDE, // invalid unicode? but somehow associated with arabic.
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// http://unicode.org/reports/tr36/tr36-7.html#Buffer_Overflows
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// Characters with especially high expansion factors when they go through various unicode "normalizations"
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0x1F82,
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0xFDFA,
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0xFB2C,
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0x0390,
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// 0x1D160, // hmm, need surrogates
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// Characters with especially high expansion factors when lowercased or uppercased
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0x023A,
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0x0041,
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0xDC1D, // a low surrogate
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0xDB00, // a high surrogate
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// UFFF0.pdf
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0xFFF9, // interlinear annotation anchor
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0xFFFA, // interlinear annotation seperator
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0xFFFB, // interlinear annotation terminator
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0xFFFC, // object replacement character
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0xFFFD, // replacement character
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0xFEFF, // zero width no-break space
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0xFFFF, // not a character
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0x00A0, // no-break space
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0x2426,
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0x003F,
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0x00BF,
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0xDC80,
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0xDCFF,
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// http://en.wikipedia.org/wiki/Mapping_of_Unicode_characters
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0x205F, // mathematical space
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0x2061, // mathematical function application
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0x2064, // mathematical invisible separator
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0x2044 // fraction slash character
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])
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)
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}
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/**
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* Generate a random character that affects bidi layout
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*/
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static bidiCharCodes () {
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return String.fromCodePoint(
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random.pick([
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0x0660, // START_HINDI_DIGITS
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0x0669, // END_HINDI_DIGITS
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0x066A, // START_ARABIC_SEPARATOR
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0x066B, // END_ARABIC_SEPARATOR
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0x0030, // START_ARABIC_DIGITS
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0x0039, // END_ARABIC_DIGITS
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0x06f0, // START_FARSI_DIGITS
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0x06f9 // END_FARSI_DIGITS
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])
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)
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}
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/**
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* Generate a random unicode combining character
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* http://www.unicode.org/Public/6.0.0/ucd/UnicodeData.txt
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*/
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static unicodeCombiningCharacter () {
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return String.fromCodePoint(
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random.range(
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...random.item([
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[0x0300, 0x036F], // Combining Diacritical Marks
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[0x0483, 0x0489],
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[0x07EB, 0x07F3],
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[0x135D, 0x135F],
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[0x1A7F, 0x1A7F],
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[0x1B6B, 0x1B73],
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[0x1DC0, 0x1DFF], // Combining Diacritical Marks Supplement
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[0x20D0, 0x2DFF],
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[0x3099, 0x309A],
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[0xA66F, 0xA6F1],
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[0xA8E0, 0xA8F1],
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[0xFE20, 0xFE26], // Combining Half Marks
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[0x101FD, 0x101FD],
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[0x1D165, 0x1D169],
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[0x1D16D, 0x1D172],
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[0x1D17B, 0x1D18B],
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[0x1D1AA, 0x1D1AD],
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[0x1D242, 0x1D244]
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])
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)
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)
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}
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/**
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* Generate a random basic multilingual plane character
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*/
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static unicodeBMP () {
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return String.fromCodePoint(
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random.range(0x0000, 0xFFFF)
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)
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}
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/**
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* Generate a random supplementary multilingual plane character
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*/
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static unicodeSMP () {
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return String.fromCodePoint(
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random.range(
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...random.item([
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[0x10000, 0x13FFF],
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[0x16000, 0x16FFF],
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[0x1B000, 0x1BFFF],
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[0x1D000, 0x1DFFF],
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[0x1F000, 0x1FFFF]
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])
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)
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)
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}
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/**
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* Generate a random supplementary ideographic plane character
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*/
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static unicodeSIP () {
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return String.fromCodePoint(
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random.range(
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...random.item([
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[0x20000, 0x2BFFF],
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[0x2F000, 0x2FFFF]
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])
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)
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)
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}
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/**
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* Generate a random supplementary special-purpose plane character
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*/
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static unicodeSSP () {
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return String.fromCodePoint(
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random.range(0xE0000, 0xE0FFF)
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)
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}
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static currency () {
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return random.pick([
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// https://en.wikipedia.org/wiki/ISO_4217
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'USD', 'USS', 'USN', 'EUR', 'CHF', 'GBP', 'XAG', 'XBA', 'XBB', 'XBC',
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'XBD', 'XSU', 'XTS', 'XXX'
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])
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}
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static fromBlocks (set, maxlen) {
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let s = ''
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for (let i = 0; i < random.number(maxlen || 255); i++) {
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s += random.pick(set)
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}
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return s
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}
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static quotedString () {
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return utils.common.quote(text.any())
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}
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/**
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* Wrapper for all text generators
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* @returns {string}
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*/
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static random () {
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return random.choose([
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[1, text.alpha],
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[1, text.alphanum],
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[1, text.arithmeticOperator],
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[1, text.assignmentOperator],
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[1, text.controlChar],
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[1, text.digit],
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[1, text.lineEnd],
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[1, text.token],
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[3, text.layoutCharCodes],
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[3, text.bidiCharCodes],
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[3, text.unicodeCombiningCharacter],
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[3, text.unicodeBMP],
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[3, text.unicodeSMP],
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[3, text.unicodeSIP],
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[3, text.unicodeSSP]
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])
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}
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/**
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* Generate a single character
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*/
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static character () {
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return text.random().charAt(0)
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}
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/**
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* Generate string comprised of random generators
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*/
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static any () {
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let s = ''
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let len = random.range(1, 126)
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while (len--) {
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s += make.text.random()
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}
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return s
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}
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}
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module.exports = text
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