382 lines
11 KiB
HTML
382 lines
11 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html>
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<head>
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<title></title>
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<link href='pages.css' type='text/css' rel='stylesheet' />
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<style type='text/css'>
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* {
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color: #ddd;
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font: 12px 'dejavu sans mono';
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}
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body {
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margin: 0;
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padding: 0;
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background-color: #000;
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overflow: hidden;
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}
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div {
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float: left;
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}
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div.result {
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float: none;
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width: 100%;
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}
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textarea {
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float: left;
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border: none;
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background: none;
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padding: 0;
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overflow: hidden;
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}
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</style>
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<script type='text/javascript' src='pages.js'></script>
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<script type='text/javascript'>
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/*
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This program is free software. It comes without any warranty, to
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the extent permitted by applicable law. You can redistribute it
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and/or modify it under the terms of the Do What The Fuck You Want
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To Public License, Version 2, as published by Sam Hocevar. See
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http://sam.zoy.org/wtfpl/COPYING for more details.
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*/
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window.onload = function() {
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var is_firefox
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if (navigator.userAgent.indexOf('Firefox') != -1) is_firefox = true
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else is_firefox = false
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input_margin_top = 0
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input_margin_right = 0
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input_margin_bottom = 0
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if (is_firefox) input_margin_left = -1
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else input_margin_left = 0
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ans = 0
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curr_input_start = document.createElement('div')
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curr_input_start.innerHTML = '>'
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document.body.appendChild(curr_input_start)
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input_start_width = curr_input_start.scrollWidth
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input_start_height = curr_input_start.scrollHeight
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curr_input = document.createElement('textarea')
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curr_input.onkeydown = function() {
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this.style.height = this.scrollHeight + 'px'
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}
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curr_input.onkeyup = function() {
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this.style.height = this.scrollHeight + 'px'
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}
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curr_input.style.marginTop = input_margin_top + 'px'
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curr_input.style.marginRight = input_margin_right + 'px'
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curr_input.style.marginBottom = input_margin_bottom + 'px'
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curr_input.style.marginLeft = input_margin_left + 'px'
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curr_input.style.width = getw() - input_start_width - input_margin_left - input_margin_right + 'px'
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curr_input.style.height = input_start_height + 'px'
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document.body.appendChild(curr_input)
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curr_input.focus()
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continue_ok = true
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window.onresize = function() {
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curr_input.style.width = getw() - input_start_width - input_margin_left - input_margin_right + 'px'
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setTimeout("curr_input.style.height = curr_input.scrollHeight + 'px'", 100)
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}
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document.onkeydown = function(event) {
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if (!continue_ok) return
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var code = getcode(event)
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if (code == 13) {
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var input_value, caltxt, len, oresult, result, result_elem, nl_elem, replace_elem
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input_value = curr_input.value
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caltxt = process_all(input_value)
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if (caltxt != '') {
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try {
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oresult = eval(caltxt)
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//parent.document.title = caltxt
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if (typeof(oresult) == 'number') result = (oresult + '') //.replace(/\./g, ',')
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else result = oresult
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if (oresult == 'NaN') result = 'Error: Not a number'
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else if (oresult == 'Infinity') result = 'Error: Infinity'
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else ans = oresult
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}
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catch(e) {
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result = 'Error'
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}
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if (result.substr(0, 5) == 'Error') result += '<br />Type "help" for help.'
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}
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else {
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result = ''
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}
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nl_elem = document.createElement('br')
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document.body.appendChild(nl_elem)
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if (result != '' && result != 'undefined') {
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result_elem = document.createElement('div')
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result_elem.className = 'result'
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result_elem.innerHTML = '>>>' + result
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document.body.appendChild(result_elem)
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}
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replace_elem = document.createElement('div')
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replace_elem.innerHTML = '>' + input_value
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document.body.insertBefore(replace_elem, curr_input)
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document.body.removeChild(curr_input_start)
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document.body.removeChild(curr_input)
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curr_input_start = document.createElement('div')
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curr_input_start.innerHTML = '>'
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document.body.appendChild(curr_input_start)
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curr_input = document.createElement('textarea')
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curr_input.onkeydown = function() {
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this.style.height = this.scrollHeight + 'px'
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}
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curr_input.onkeyup = function() {
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this.style.height = this.scrollHeight + 'px'
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}
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curr_input.style.marginTop = input_margin_top + 'px'
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curr_input.style.marginRight = input_margin_right + 'px'
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curr_input.style.marginBottom = input_margin_bottom + 'px'
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curr_input.style.marginLeft = input_margin_left + 'px'
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curr_input.style.width = getw() - input_start_width - input_margin_left - input_margin_right + 'px'
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curr_input.style.height = input_start_height + 'px'
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window.scrollBy(0, 100000)
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}
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continue_ok = false
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}
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document.onkeyup = function(event) {
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var code = getcode(event)
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if (code == 13) {
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document.body.appendChild(curr_input)
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curr_input.focus()
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curr_input.value = ''
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}
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continue_ok = true
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}
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document.ondblclick = function() {
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curr_input.focus()
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}
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}
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function getcode(event) {
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var e, code
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if (window.event) e = window.event
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else e = event
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if (e.which) code = e.which
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else if (e.charCode) code = e.charCode
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else if (e.keyCode) code = e.keyCode
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else code = 0
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return code
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}
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function getw() {
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var w
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if (self.innerHeight)
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w = self.innerWidth
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else if (document.documentElement && document.documentElement.clientHeight)
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w = document.documentElement.clientWidth
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else if (document.body)
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w = document.body.clientWidth
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return w
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}
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function process_all(txt) {
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var newtxt, txtspl, txtsta, replaces, len, i
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newtxt = txt
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if (newtxt.indexOf('=') != -1) {
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txtspl = newtxt.split('=')
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newtxt = txtspl[1]
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txtsta = txtspl[0] + '='
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}
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else
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txtsta = ''
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replaces = [
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[/\ /g, ''],
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//[/\,/g, '.'], // Uncomment to allow "," as "." (used in some countries)
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[/\'/g, ','],
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[/\_/g, ','],
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[/\*\*/g, '^'],
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[/\&pi/gi, 'Math.PI'],
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[/\π/gi, 'Math.PI'],
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[/\&e/gi, 'Math.E'],
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[/log\(/gi, 'log('],
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[/ln\(/gi, 'ln('],
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[/sqrt\(/gi, 'sqrt('],
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[/r\(/gi, 'sqrt('],
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[/sin\(/gi, 'sin('],
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[/sin\^\(-1\)\(/gi, 'asin('],
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[/sin\^-1\(/gi, 'asin('],
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[/cos\(/gi, 'cos('],
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[/cos\^\(-1\)\(/gi, 'acos('],
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[/cos\^-1\(/gi, 'acos('],
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[/tan\(/gi, 'tan('],
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[/tan\^\(-1\)\(/gi, 'atan('],
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[/tan\^-1\(/gi, 'atan(']
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]
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len = replaces.length
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for (i = 0; i < len; i++) {
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newtxt = newtxt.replace(replaces[i][0], replaces[i][1])
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}
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if (newtxt == 'help')
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return "'This is a simple calculator. It is able to put a number in the power of a number and supports functions like sin(), asin(), cos(), acos(), tan(), atan(), log() og ln(). To take the power of a number, write \"x^y\" or \"x**y\". To take the squareroot of a number, write \"r(x)\". To take another root of a number, write \"r(x,y)\". Type \"&pi\" for pi and \"&e\" for e. Trigonometric functions use degrees, not radians. The log() function uses 10 as its base, while the ln() function uses e. To use a previous result, type \"ans\".'"
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else if (newtxt != '')
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return txtsta + process_part(newtxt)
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else
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return txtsta + newtxt
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}
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function process_part(txt) {
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var number_parts, operator_parts, bracket_count, len, i, curr, indexOfBracket, special_characters, newtxt, last, add_operator
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number_parts = []
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number_parts[0] = ''
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operator_parts = []
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bracket_count = 0
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len = txt.length
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for (i = 0; i < len; i++) {
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curr = txt.substr(i, 1)
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if (curr == '(') bracket_count++
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else if (curr == ')') bracket_count--
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if ((curr == '+' || curr == '-' || curr == '*' || curr == '/' || curr == '^') && bracket_count == 0) {
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number_parts[number_parts.length] = ''
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operator_parts[operator_parts.length] = txt.substr(i, 1)
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}
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else {
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number_parts[number_parts.length - 1] += txt.substr(i, 1)
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}
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}
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len = number_parts.length
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if (number_parts[0] == '') number_parts[0] = '0'
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if (number_parts[len - 1] == '') number_parts[len - 1] = '0'
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for (i = 0; i < bracket_count; i++) {
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number_parts[len - 1] += ')'
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}
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for (i = 0; i < len; i++) {
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if (number_parts[i] != '') {
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indexOfBracket = number_parts[i].indexOf('(')
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if (indexOfBracket != -1) number_parts[i] = number_parts[i].substr(0, indexOfBracket) + '(' + process_part(number_parts[i].substr(indexOfBracket + 1, number_parts[i].length - indexOfBracket - 2)) + ')'
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}
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}
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special_characters = '^'
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newtxt = ''
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for (i = 0; i < len; i++) {
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last = (i == len - 1) ? true : false
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add_operator = true
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if (!last && special_characters.indexOf(operator_parts[i]) != -1) {
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add_operator = false
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if (operator_parts[i] == '^')
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newtxt += 'pow(' + number_parts[i] + ',' + number_parts[i + 1] + ')'
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}
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else if (special_characters.indexOf(operator_parts[i - 1]) == -1) {
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newtxt += number_parts[i]
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}
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if (!last && add_operator) newtxt += operator_parts[i]
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}
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return newtxt
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}
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function sin(num) {
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return Math.sin(num * Math.PI / 180)
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}
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function cos(num) {
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return Math.cos(num * Math.PI / 180)
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}
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function tan(num) {
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return Math.tan(num * Math.PI / 180)
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}
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function asin(num) {
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return (Math.asin(num) / Math.PI) * 180
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}
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function acos(num) {
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return (Math.acos(num) / Math.PI) * 180
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}
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function atan(num) {
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return (Math.atan(num) / Math.PI) * 180
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}
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function sqrt(num1, num2) {
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if (num2 == undefined)
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return Math.sqrt(num1)
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else return pow(num1, 1 / num2)
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}
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function pow(num1, num2) {
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return Math.pow(num1, num2)
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}
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function log(num) {
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return Math.log(num) / Math.log(10)
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}
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function ln(num) {
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return Math.log(num)
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}
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function max(num1, num2) {
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return Math.max(num1, num2)
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}
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function min(num1, num2) {
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return Math.min(num1, num2)
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}
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function round(num) {
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return Math.round(num)
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}
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function floor(num) {
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return Math.floor(num)
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}
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function ceil(num) {
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return Math.ceil(num)
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}
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function rand() {
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return Math.random()
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}
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function randint(num1, num2) {
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return Math.floor(Math.random() * (num2 - num1 + 1)) + num1
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}
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</script>
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</head>
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<body></body>
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</html>
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