JezK
Edit File: str-to-num.js
// Copyright 2008 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. function toNumber(val) { return Number(val); } function repeat(s, num) { var result = ''; while (num > 0) { if ((num & 1) != 0) result += s; s += s; num >>= 1; } return result; } assertEquals('0000000000', repeat('0', 10)); // assertEquals(, toNumber()); assertEquals(123, toNumber(" 123")); assertEquals(123, toNumber("\n123")); assertEquals(123, toNumber("\r123")); assertEquals(123, toNumber("\t123")); assertEquals(123, toNumber("\f123")); assertEquals(123, toNumber("123 ")); assertEquals(123, toNumber("123\n")); assertEquals(123, toNumber("123\r")); assertEquals(123, toNumber("123\t")); assertEquals(123, toNumber("123\f")); assertEquals(123, toNumber(" 123 ")); assertEquals(123, toNumber("\n123\n")); assertEquals(123, toNumber("\r123\r")); assertEquals(123, toNumber("\t123\t")); assertEquals(123, toNumber("\f123\f")); assertEquals(16, toNumber(" 0x10 ")); assertEquals(NaN, toNumber("0x")); assertEquals(NaN, toNumber("0x ")); assertTrue(isNaN(toNumber(" NaN "))); assertEquals(Infinity, toNumber(" Infinity ") ," Infinity"); assertEquals(-Infinity, toNumber(" -Infinity ")); assertEquals(Infinity, toNumber(" +Infinity "), " +Infinity"); assertEquals(Infinity, toNumber("Infinity ") ,"Infinity"); assertEquals(-Infinity, toNumber("-Infinity ")); assertEquals(Infinity, toNumber("+Infinity "), "+Infinity"); assertEquals(0, toNumber("0")); assertEquals(0, toNumber("+0")); assertEquals(-0, toNumber("-0")); assertEquals(-Infinity, 1 / toNumber("-0")); assertEquals(1, toNumber("1")); assertEquals(1, toNumber("+1")); assertEquals(-1, toNumber("-1")); assertEquals(2, toNumber("2")); assertEquals(2, toNumber("+2")); assertEquals(-2, toNumber("-2")); assertEquals(3.1415926, toNumber("3.1415926")); assertEquals(3.1415926, toNumber("+3.1415926")); assertEquals(-3.1415926, toNumber("-3.1415926")); assertEquals(5, toNumber("5.")); assertEquals(5, toNumber("+5.")); assertEquals(-5, toNumber("-5.")); assertEquals(500, toNumber("5e2")); assertEquals(500, toNumber("+5e2")); assertEquals(-500, toNumber("-5e2")); assertEquals(500, toNumber("5e+2")); assertEquals(500, toNumber("+5e+2")); assertEquals(-500, toNumber("-5e+2")); assertEquals(0.05, toNumber("5e-2")); assertEquals(0.05, toNumber("+5e-2")); assertEquals(-0.05, toNumber("-5e-2")); assertEquals(0.00001, toNumber(".00001")); assertEquals(0.00001, toNumber("+.00001")); assertEquals(-0.00001, toNumber("-.00001")); assertEquals(1, toNumber(".00001e5")); assertEquals(1, toNumber("+.00001e5")); assertEquals(-1, toNumber("-.00001e5")); assertEquals(1, toNumber(".00001e+5")); assertEquals(1, toNumber("+.00001e+5")); assertEquals(-1, toNumber("-.00001e+5")); assertEquals(0.00001, toNumber(".001e-2")); assertEquals(0.00001, toNumber("+.001e-2")); assertEquals(-0.00001, toNumber("-.001e-2")); assertEquals(12340000, toNumber("1234e4")); assertEquals(12340000, toNumber("+1234e4")); assertEquals(-12340000, toNumber("-1234e4")); assertEquals(12340000, toNumber("1234e+4")); assertEquals(12340000, toNumber("+1234e+4")); assertEquals(-12340000, toNumber("-1234e+4")); assertEquals(0.1234, toNumber("1234e-4")); assertEquals(0.1234, toNumber("+1234e-4")); assertEquals(-0.1234, toNumber("-1234e-4")); assertEquals(0, toNumber("0x0")); assertEquals(1, toNumber("0x1")); assertEquals(2, toNumber("0x2")); assertEquals(9, toNumber("0x9")); assertEquals(10, toNumber("0xa")); assertEquals(11, toNumber("0xb")); assertEquals(15, toNumber("0xf")); assertEquals(10, toNumber("0xA")); assertEquals(11, toNumber("0xB")); assertEquals(15, toNumber("0xF")); assertEquals(0, toNumber("0X0")); assertEquals(9, toNumber("0X9")); assertEquals(10, toNumber("0Xa")); assertEquals(10, toNumber("0XA")); assertEquals(15, toNumber("0Xf")); assertEquals(15, toNumber("0XF")); assertEquals(0, toNumber("0x000")); assertEquals(-Infinity, 1 / toNumber("-0x000")); assertEquals(0, toNumber("0x000" + repeat('0', 1000))); assertEquals(9, toNumber("0x009")); assertEquals(10, toNumber("0x00a")); assertEquals(10, toNumber("0x00A")); assertEquals(15, toNumber("0x00f")); assertEquals(15, toNumber("0x00F")); assertEquals(15, toNumber("0x00F ")); assertEquals(Infinity, toNumber("0x" + repeat('0', 1000) + '1' + repeat('0', 1000))); assertEquals(-Infinity, toNumber("-0x1" + repeat('0', 1000))); assertEquals(0x1000000 * 0x10000000, toNumber("0x10000000000000")); assertEquals(0x1000000 * 0x10000000 + 1, toNumber("0x10000000000001")); assertEquals(0x10 * 0x1000000 * 0x10000000, toNumber("0x100000000000000")); assertEquals(0x10 * 0x1000000 * 0x10000000, toNumber("0x100000000000001")); assertEquals(0x10 * 0x1000000 * 0x10000000, toNumber("0x100000000000007")); assertEquals(0x10 * 0x1000000 * 0x10000000, toNumber("0x100000000000008")); assertEquals(0x10 * (0x1000000 * 0x10000000 + 1), toNumber("0x100000000000009")); assertEquals(0x10 * (0x1000000 * 0x10000000 + 1), toNumber("0x10000000000000F")); assertEquals(0x10 * (0x1000000 * 0x10000000 + 1), toNumber("0x100000000000010")); assertEquals(0x100000000000 * 0x1000000 * 0x10000000, toNumber("0x1000000000000000000000000")); assertEquals(0x100000000000 * 0x1000000 * 0x10000000, toNumber("0x1000000000000080000000000")); assertEquals(0x100000000000 * (0x1000000 * 0x10000000 + 1), toNumber("0x1000000000000080000000001")); assertEquals(0x100000000000 * 0x1000000 * 0x10000000, toNumber(" 0x1000000000000000000000000 ")); assertEquals(0, toNumber("00")); assertEquals(1, toNumber("01")); assertEquals(2, toNumber("02")); assertEquals(10, toNumber("010")); assertEquals(100, toNumber("0100")); assertEquals(100, toNumber("000100")); assertEquals(Infinity, toNumber("1e999"), "1e999"); assertEquals(-Infinity, toNumber("-1e999")); assertEquals(0, toNumber("1e-999")); assertEquals(-0, toNumber("-1e-999")); assertEquals(Infinity, 1 / toNumber("1e-999"), "1e-999"); assertEquals(-Infinity, 1 / toNumber("-1e-999")); assertTrue(isNaN(toNumber("junk")), "junk"); assertTrue(isNaN(toNumber("100 junk")), "100 junk"); assertTrue(isNaN(toNumber("0x100 junk")), "0x100 junk"); assertTrue(isNaN(toNumber("100.0 junk")), "100.0 junk"); assertTrue(isNaN(toNumber(".1e4 junk")), ".1e4 junk"); assertTrue(isNaN(toNumber("Infinity junk")), "Infinity junk"); assertTrue(isNaN(toNumber("1e")), "1e"); assertTrue(isNaN(toNumber("1e ")), "1e_"); assertTrue(isNaN(toNumber("1" + repeat('0', 1000) + 'junk')), "1e1000 junk"); for (var i = 1; i < 12; i++) { assertEquals(toNumber('1' + repeat('0', i)), Math.pow(10.0, i)); }