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korecalc.html
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<html>
<head>
<style>
@font-face {
font-family: koreSebeli;
src: url(../fonts/koresebeli.otf);
}
*{
font-family: koreSebeli;
}
.english{
font-family: "Verdana";
}
body, DOM{
background-color: #221a0f;
}
#content{
background-color: #fbebd4;
height: 54px;
width: 100%;
margin-bottom: 10px;
font-size: 44px;
font-weight: 700;
}
.number{
background-color: #f79a32;
}
.n{
color: #f79a32;
}
.operator{
background-color: #dc3958;
}
.o{
color: #dc3958;
}
.syntax{
background-color: #a57a4c;
}
.s{
color: #a57a4c;
}
.constant{
background-color: #889b4a;
}
.c{
color: #889b4a;
}
.equals{
background-color: #088649;
}
.input{
background-color: #8ab1b0;
}
h1{
text-align: center;
font-size: 48px;
color: #fbebd4;
}
button{
color: #fbebd4;
border: none;
font-size: 36px;
}
.o-:first-child, .o + .o-, .s + .o-{
color: #f79a32;
}
</style>
<script>
function isanumber(str){
str = "" + str
if("0123456789.".includes(str.charAt(0))){
console.log('t')
return true;
}
else{
console.log('f')
return false
}
}
function balancedParentheses(phrase){
if(phrase.includes("()")) return false
n = 0
for(x of phrase){
if(x == "(") n++
if(x == ")") n--
if(n < 0) return false
}
if(n == 0) return true
else return false
}
function render(id){
tp = id.charAt(0)
cn = id.charAt(1)
document.getElementById("content").innerHTML += `<span class="${tp} ${id}">${cn}</span>`
}
function equals(){
if(!balancedParentheses(document.getElementById("content").textContent)){
alert("parentheses error")
return 0;
}
e = Array.from(document.getElementById("content").childNodes)
equation = []
// parses equation
for(ex of e){
ex = ex.textContent
console.log(ex)
if((equation.length > 0) && (isanumber(ex) || ex == ".")){
n = equation[equation.length-1]
if((isanumber(n)) || n == "." || (n == "-" && (equation.length == 1 ||"+-×÷^".includes(equation[equation.length-2])))) equation[equation.length-1] += ex
else equation.push(ex)
}
else equation.push(ex)
}
console.log(equation)
newequation = []
// adds implicit multiplication sign x
for(second of equation){
first = newequation[newequation.length-1]
console.log("AAA")
console.log(first, second)
if(first == undefined) first = "+"
if(second == "(" && !("+-×÷^".includes(first))) newequation.push("x")
else if("πE".includes(second) && (isanumber(first))){
console.log(':)')
newequation.push("x")
}
if(second == "π") second = "3.14159"
else if(second == "E") second = "2.71828"
newequation.push(second)
}
console.log(newequation)
console.log(bruhmoment(newequation))
res = bruhmoment(newequation)[0]
//res = res.toString(20)
console.log(res)
document.getElementById("content").innerHTML = `<span class="n">${res}</span>`
}
function del(){
d = document.getElementById("content")
if(d.hasChildNodes()) d.removeChild(d.lastChild)
}
//non button functions
function solvephrase(phrase){
newphrase = []
for(item of phrase.reverse()){
if(newphrase[newphrase.length-1] == "^"){
exp = Math.pow(item, newphrase[newphrase.length-2])
newphrase.pop()
newphrase.pop()
newphrase.push(exp)
}
else newphrase.push(item)
}
phrase = newphrase.reverse()
newphrase = []
for(item of phrase){
if(newphrase[newphrase.length-1] == "x"){
mult = newphrase[newphrase.length-2] * item
newphrase.pop()
newphrase.pop()
newphrase.push(mult)
}
else newphrase.push(item)
}
phrase = newphrase
newphrase = []
for(item of phrase){
if(newphrase[newphrase.length-1] == "×"){
mult = newphrase[newphrase.length-2] * item
newphrase.pop()
newphrase.pop()
newphrase.push(mult)
}
else if(newphrase[newphrase.length-1] == "÷"){
div = newphrase[newphrase.length-2] / item
newphrase.pop()
newphrase.pop()
newphrase.push(div)
}
else newphrase.push(item)
}
phrase = newphrase
newphrase = []
for(item of phrase){
if(newphrase[newphrase.length-1] == "+"){
add = +newphrase[newphrase.length-2] + +item
newphrase.pop()
newphrase.pop()
newphrase.push(add)
}
else if(newphrase[newphrase.length-1] == "-"){
sub = newphrase[newphrase.length-2] - item
newphrase.pop()
newphrase.pop()
newphrase.push(sub)
}
else newphrase.push(item)
}
return newphrase
}
function bruhmoment(phrase){
phrase.unshift("(")
phrase.push(")")
while(phrase.includes(")")){
x = phrase.slice(0, phrase.indexOf(")"))
n = x.lastIndexOf("(")
g = phrase.slice(n+1, phrase.indexOf(")"))
phrase = phrase.slice(0, n).concat(solvephrase(g), phrase.slice(phrase.indexOf(")")+1))
}
return phrase
}
</script>
</head>
<body>
<h1 class="english">KoreSebeliCalc</h1>
<div id="content"></div>
<div id="buttons">
<button id="n0" class="number" onclick="render(this.id)">0</button>
<button id="n1" class="number" onclick="render(this.id)">1</button>
<button id="n2" class="number" onclick="render(this.id)">2</button>
<button id="n3" class="number" onclick="render(this.id)">3</button>
<button id="n4" class="number" onclick="render(this.id)">4</button>
<button id="n5" class="number" onclick="render(this.id)">5</button>
<button id="n6" class="number" onclick="render(this.id)">6</button>
<button id="n7" class="number" onclick="render(this.id)">7</button>
<button id="n8" class="number" onclick="render(this.id)">8</button>
<button id="n9" class="number" onclick="render(this.id)">9</button>
<button id="n." class="number" onclick="render(this.id)">.</button>
<button id="o+" class="operator" onclick="render(this.id)">+</button>
<button id="o-" class="operator" onclick="render(this.id)">-</button>
<button id="o×" class="operator" onclick="render(this.id)">×</button>
<button id="o÷" class="operator" onclick="render(this.id)">÷</button>
<button id="o^" class="operator" onclick="render(this.id)">^</button>
<button id="s(" class="syntax" onclick="render(this.id)">(</button>
<button id="s)" class="syntax" onclick="render(this.id)">)</button>
<button id="cπ" class="constant" onclick="render(this.id)">π</button>
<button id="cE" class="english constant" onclick="render(this.id)">E</button>
<button id="e=" class="equals" onclick="equals()">=</button>
<button id="iDEL" class="input english" onclick="del()">DEL</button>
</div>
</body>
</html>