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ScriptCalculator.html
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<!DOCTYPE html>
<html>
<head>
<!--
Created by Míng on 2019-11-22.
Copyright © 2022 Míng <minglq.9@gmail.com>. Released under the MIT license.
-->
<!--
BUG:
- shortcuts for showing help, should be triggered any where?
TODO:
- CSS Nesting: https://developer.chrome.com/docs/css-ui/css-nesting
- replace all spaces to `␣` in $script
- replace all `␣` to spaces when calculate, copy/cut and share
- remove #underline?
- remove #reset?
- array, objct
- map, reduce, filter ...
- ewiki shortcuts config, and help
- refactor `calculate()` with RORO pattern
function find_func(args...) { ... return { name, args }; }
let { funcName, funcArgs } = find_func(args...);
- test cases: one group per page
- performance?
- ???: ignore trailing + - * / ((( ...
- layout
#see http://www.ruanyifeng.com/blog/2020/08/five-css-layouts-in-one-line.html
.container {
display: grid;
grid-template-columns: minmax(150px, 25%) 1fr;
}
- ???: invalid value
fa(a): a
fa() // <no-result> - undefined
fa(a): a * 1
fa() // NaN
NOTE:
- RexExp:
#see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions/Cheatsheet
x(?=y) // lookahead assertion
x(?!y) // negative lookahead assertion
(?<=y)x // lookbehind assertion
(?<!y)x // negative lookbehind assertion
-->
<title>ScriptCalculator by Míng</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- meta name="viewport" content="width=device-width, user-scalable=no" / -->
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<style type="text/css" media="all">
/* the root element - https://developer.mozilla.org/en-US/docs/Web/CSS/:root */
:root {
--margin: 8px;
--space-l: 8px;
--space: 5px;
--top-height: 35px;
--right-width: 32%; /* 25% */
--ln-width: 20px;
}
html {
box-sizing: border-box;
font-family: monospace;
font-size: 13px;
}
*, *:before, *:after {
box-sizing: inherit;
font-family: inherit;
font-size: inherit;
}
html {
min-width: 1024px;
min-height: 256px;
overflow: scroll;
height: 100%;
padding: 0;
}
body {
height: calc(100% - var(--margin) * 2);
margin: var(--margin);
padding: 0;
overflow: hidden;
}
h1#background {
z-index: -1;
position: absolute;
font-size: 16vh;
margin-left: 2vw;
}
h1#background:after { /* disable browser finding by pseudo element */
content: "Script-\A Calculator\A by Míng";
white-space: pre;
color: ghostwhite;
}
h1#title {
display: inline-block;
margin: 0;
}
button {
font-size: 12px;
}
select:disabled {
text-decoration: line-through;
}
input {
vertical-align: middle;
}
a {
text-underline-position: under;
}
.underline {
text-decoration: underline;
text-underline-position: under;
}
#right {
width: var(--right-width);
margin: 0 0 0 var(--space-l);
position: relative;
}
#left {
width: calc(100% - var(--right-width) - var(--space-l));
margin: 0;
position: relative;
}
.container {
height: calc(100% - var(--top-height)/* - var(--space) * 2 */);
float: left;
display: inline-block;
line-height: 0;
}
#ruler {
pointer-events: none;
position: absolute;
right: 0px;
top: 0;
border-width: 0;
margin: 0;
width: 1px;
height: 100%;
background-color: gray;
opacity: 0.1;
}
#rulerHelper {
position: absolute;
top: 0;
right: 0;
width: revert;
height: revert;
/* remove left padding and border for calculating caret position */
padding-left: 0;
border-left-width: 0;
opacity: 0;
}
#script {
text-align: right;
border-radius: 5px;
}
#result {
padding-left: calc(var(--ln-width) + var(--space));
overflow-x: hidden;
border-radius: 5px;
}
#lineNumber {
pointer-events: none;
position: absolute;
left: 0;
top: 0;
width: var(--ln-width);
padding: var(--space) 1px;
border-color: transparent;
background-clip: padding-box;
background-color: #00000008;
color: darkgray;
text-align: right;
}
.code {
width: 100%;
height: 100%;
resize: none;
margin: 0;
padding: var(--space);
border-style: solid;
border-width: 0.5px;
border-color: gray;
background-color: transparent;
line-height: 18px; /* normal ~= 17.8 */
white-space: pre;
word-wrap: normal; /* for Safari */
overflow-x: scroll;
}
#script::-webkit-scrollbar,
#lineNumber::-webkit-scrollbar {
width: 0;
height: 0;
background: transparent;
}
</style>
</head>
<body>
<h1 id="background"></h1>
<!-- TODO: overflow: scroll / hide left; -->
<div id="top" style="height: var(--top-height); position: relative; overflow-x: scroll;">
<div style="position: absolute; left: 0; top: 0; padding: var(--space) 0;">
<h1 id="title">ScriptCalculator by <a target="_blank" href="https://iwill.im/">Míng</a></h1>
[ <a target="_blank" href="https://github.com/iwill/ScriptCalculator">GitHub</a>
| <a target="_blank" href="#eyJzY3JpcHQiOiIjIFNjcmlwdENhbGN1bGF0b3JcblxuXG4jIyBRdWljayBTdGFydCB8IOeugOWNleW6lOeUqFxuXG4xICsgMlxuLSAxXG4qIDVcbiogMTAlXG5cblxuIyMgVmFyaWFibGVzIHwg5Y%2BY6YePXG5cbiQgKyAkMyArIPCfkYbwn4%2B%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%2BZ6YeMIPCfkYfwn4%2B%2FXG5cbi8vIGh0dHBzOi8vZ2l0aHViLmNvbS9pd2lsbC9TY3JpcHRDYWxjdWxhdG9yI3JlYWRtZVxuXG4ifQ%3D%3D-1000002-1000018">Demo</a>
| <a target="_blank" href="https://iwill.im/2022/07/08/script-calculator/">Help</a>
]
</div>
<div style="position: absolute; right: 0; top: 0; padding: var(--space) 0;">
<span id="errorsCount"></span>
decimal: <select id="decimalPlaces" onchange="sthChanged(event, this)">
<option value="-1">--</option><option value="0">0</option>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option>
<option value="5">5</option><option value="6">6</option><option value="7">7</option><option value="8">8</option>
<option value="9">9</option><option value="10">10</option><option value="11">11</option><option value="12">12</option>
<option value="13">13</option><option value="14">14</option><option value="15">15</option><option value="16">16</option>
</select>
<!--
TODO: FixedPoint: <select id="fixedPoint" onchange="sthChanged(event, this)">
<option value="-1">--</option>
<option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option>
<option value="5">5</option><option value="6">6</option><option value="7">7</option><option value="8">8</option>
<option value="9">9</option><option value="10">10</option><option value="11">11</option><option value="12">12</option>
<option value="13">13</option><option value="14">14</option><option value="15">15</option><option value="16">16</option>
</select>
-->
rounding: <select id="roundingMethod" onchange="sthChanged(event, this)">
<option value="round">round</option><option value="floor">floor</option><option value="ceil">ceil</option>
</select>
<label>underline: <input type="checkbox" id="underline" onchange="underlineChanged(event, this)" /></label>
<button id="reset" onclick="resetClicked(event, this)">reset</button>
|
<button id="copy" onclick="copyOutputClicked(event, this)">copy</button>
<button id="share" onclick="shareShortenedURL(event, this)">share (beta)</button>
</div>
</div>
<div id="left" class="container">
<hr id="ruler" />
<textarea id="script" class="code" oninput="sthChanged(event, this)" onkeydown="shortcutsTriggered(event, this)" onscroll="scrollingChanged(event, this)"></textarea>
<pre id="rulerHelper" class="code"></pre>
</div>
<div id="right" class="container">
<textarea readonly id="result" class="code" onscroll="scrollingChanged(event, this)"></textarea>
<textarea readonly id="lineNumber" class="code" tabindex="-1" onscroll="scrollingChanged(event, this)"></textarea>
</div>
</body>
<script type="text/javascript">
"use strict";
(function onload(undefined) {
for (let method of ["round", "floor", "ceil"]) {
let _method = "_" + method;
Math[_method] = Math[method];
Math[method] = function(number, len) {
if (!len) {
return this[_method](number);
}
let pow = this.pow(10, this._floor(this.abs(len))); // !!!: `pow` supports negative numbers, but inaccurate
return len > 0 ? this[_method](number * pow) / pow : this[_method](number / pow) * pow;
};
}
Math.$sum = function(from, till) {
let length = vals.length;
if (from < 0) from = length + from;
else if (from === undefined) from = 0;
if (till < 0) till = length + till;
else if (till === undefined || till >= length) till = length - 1;
if (from > till) [from, till] = [till, from];
let sum = 0;
for (let i = from; i <= till; i++) {
sum += vals[i];
}
return sum;
};
Math.$avg = function(from, till) {
let length = vals.length;
if (from < 0) from = length + from;
else if (from === undefined) from = 0;
if (till < 0) till = length + till;
else if (till === undefined || till >= length) till = length - 1;
if (from > till) [from, till] = [till, from];
return this.$sum(from, till) / (till - from + 1);
};
Math.$min = function(from, till) {
let length = vals.length;
if (from < 0) from = length + from;
else if (from === undefined) from = 0;
if (till < 0) till = length + till;
else if (till === undefined || till >= length) till = length - 1;
if (from > till) [from, till] = [till, from];
let min = vals[from];
for (let i = from + 1; i <= till; i++) {
min = this.min(min, vals[i]);
}
return min;
};
Math.$max = function(from, till) {
let length = vals.length;
if (from < 0) from = length + from;
else if (from === undefined) from = 0;
if (till < 0) till = length + till;
else if (till === undefined || till >= length) till = length - 1;
if (from > till) [from, till] = [till, from];
let max = vals[from];
for (let i = from + 1; i <= till; i++) {
max = this.max(max, vals[i]);
}
return max;
};
Math.GR = Math.sqrt(1.25) - 0.5; // GoldenRatio
Math.Phi = Math.GR;
function isBuiltin(name) {
return !!Math[name] || globalThis[name] !== undefined || name === "undefined";
}
function isValidGlobalFunc(name) {
return [
"isFinite", "isNaN", "parseFloat", "parseInt",
"Number", "BigInt"
].includes(name);
}
function isValidBuiltinValue(name) {
return (Object.getOwnPropertyNames(Number).filter((key) => /^[A-Z][A-Z0-9_]*$/.test(key)).includes(name)
|| Object.getOwnPropertyNames(Math).filter((key) => /^[A-Z][A-Z0-9_]*$/.test(key)).includes(name)
|| ["Infinity", "NaN", "undefined"].includes(name));
}
function builtinValue(name) {
if (Object.getOwnPropertyNames(Number).filter((name) => /^[A-Z][A-Z0-9_]*$/.test(name)).includes(name)) {
return Number[name];
}
if (Object.getOwnPropertyNames(Math).filter((name) => /^[A-Z][A-Z0-9_]*$/.test(name)).includes(name)) {
return Math[name];
}
if (["Infinity", "NaN", "undefined"].includes(name)) {
return globalThis[name];
}
return undefined;
}
// let regExp = /^(?<name>[A-Za-z_][A-Za-z0-9_]*)\s*(?<args>\((\s*[A-Za-z_][A-Za-z0-9_]*\s*(,\s*[A-Za-z_][A-Za-z0-9_]*\s*)*)?\))\:/;
// tagged templates:
// RegExp.make`^[A-Za-z0-9_]*${"img"}` => /^[A-Za-z0-9_]*/img
// RegExp.make`^[A-Za-z0-9_]*${""}` => /^[A-Za-z0-9_]*/
// RegExp.make`^[A-Za-z0-9_]*` => /^[A-Za-z0-9_]*/
// #see https://stackoverflow.com/questions/12317049/how-to-split-a-long-regular-expression-into-multiple-lines-in-javascript/12317105#12317105
// #see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals
RegExp.make = (regExp, opts) => new RegExp(regExp.raw[0].replace(/( #.*|\s)/mg, ""), opts || "");
/// 7 Arithmetic, Remainder and Parentheses Operators
/// + - * / % ( )
/// 6 Comparison Operators
/// < <= > >= == !=
/// 7 Bitwise Operators
/// & | ~ ^ << >> >>>
/// 4 Logical Operators
/// && || ! ?:
/// Unary(Un), Binary(Bi) and Ternary(Ter)
const BI_TER_OPERATORS_START = RegExp.make`^(
[ \+ \- \* \/ \% ] | \*\* # NO ( and )
| [ \& \| \^ ] | \<\< | \>\> | \>\>\> # NO ~
| [ \< \> ] | \<\= | \>\= | \=\= | \!\=
| \&\& | \|\| | \? .* \: # NO !
| \#\d+ | \%\%
)`;
// const NOT_BI_TER_OPERATORS_START = RegExp.make`^(?!
// [ \+ \- \* \/ \% ] | \*\*
// | [ \& \| \^ ] | \<\< | \>\> | \>\>\>
// | [ \< \> ] | \<\= | \>\= | \=\= | \!\=
// | \&\& | \|\| | \? .* \:
// | \#\d+ | \%\%
// )`;
function tryCatch(f1, f2) {
try {
return f1();
}
catch (e) {
return f2(e);
}
}
function debugGroup(label, fn) {
label = label.replace(/%/g, "%%");
if (fn) {
console.group(label);
console.time(label);
fn();
console.timeEnd(label);
console.groupEnd(label);
}
}
function debugFunc(_args, src, fn) {
if (typeof src == "function") {
fn = src;
src = undefined;
}
let use_strict = (() => !this)();
if (use_strict) {
fn && fn();
}
else {
let path = [_args.callee.caller?.name, _args.callee.name].filter((x) => x).join(" > ");
if (src) {
path = `${src}.${path}`
}
console.debug(`func: ${path}`);
debugGroup(_args.callee.name, fn);
}
}
let $left = document.querySelector("#left");
let $ruler = document.querySelector("#ruler");
let $rulerHelper = document.querySelector("#rulerHelper");
$rulerHelper.remove();
let $script = $left.querySelector("#script");
let $right = document.querySelector("#right");
let $result = $right.querySelector("#result");
let $lineNumber = $right.querySelector("#lineNumber");
let $top = document.querySelector("#top");
let $decimalPlaces = $top.querySelector("#decimalPlaces");
// let $fixedPoint = $top.querySelector("#fixedPoint");
let $roundingMethod = $top.querySelector("#roundingMethod");
let $underline = $top.querySelector("#underline");
let copyOutput = "";
function commentIndex(line) {
let commentIndices = [
line.indexOf("//"),
(() => {
// TODO: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/matchAll#regexp.prototype.exec_and_matchall
// TODO: config.match(/(?<==)(INACTIVE|NOCODE|OPEN|TEMP|TEST|TODO:.+|UNSUPPORTED:.+)\s*$/g)[0]
// Array.from(str.matchAll(regexp), (m) => m[0]);
// Array.from(str.matchAll(regexp), (m) => `${regexp.lastIndex} ${m[0]}`);
let commentMatches = [...line.matchAll(/#+\d*\s*/g)];
if (commentMatches.length) {
let match = commentMatches[0];
if (!/#\d+/.test(match[0])) {
return match.index;
}
else if ((match = commentMatches[1])) {
return match.index;
}
}
return -1;
})()
].filter((x) => x >= 0);
let commentIndex = Math.min(...commentIndices);
return commentIndex == Infinity ? -1 : commentIndex;
}
function calculate() { debugFunc(arguments, function() {
/// prepare
let script = $script.value;
let trimmed = script.trim();
document.querySelector("title").innerText = trimmed.slice(0, trimmed.indexOf("\n")) || "ScriptCalculator by Míng";
// TODO: value.toLocaleString(undefined, {style: "decimal"/"currency"/"percent", currency: "USD"/"EUR"/"CNY", useGrouping: true});
// #see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
// let display = value.toLocaleString();
/* TODO: lines [{
result: number / "" / "ERROR",
display: converted-number / "" / "ERROR",
lineNumber: number / "",
output: `code = value // comment`
}, ...] */
let result = [], lineNumber = [], output = [];
globalThis.funcs = {}, globalThis.vars = {}, globalThis.vals = [];
let multiLines = "", jsBlock;
let lines = script.split("\n");
for (let ln = 0; ln < lines.length; ln++) { let line = lines[ln]; debugGroup(`#${ln} \`${line}\``, function() {
let code, comment;
let varName, funcName, funcArgs;
let resToPercentage, resToBase;
let value, display;
try {
code = line.trim();
/// comments
let index = commentIndex(code);
if (index >= 0) {
comment = code.slice(index).trim();
code = code.slice(0, index).trim();
}
/// limit
if (vals.length >= 1000 && code.length) {
throw "too many calculations";
}
/// multiple lines: escape line-break by `\`
let hasEsc = code.endsWith("\\");
if (hasEsc || multiLines) {
multiLines += code.replace(/\\$/, "\t");
if (hasEsc) {
code = "";
}
else {
code = multiLines;
multiLines = "";
}
}
/// js blocks
let jsStarts = code.match(/^(.*)```\s*\w*\s*$/), jsEnds = code.endsWith("```");
let jsCode = false;
if (jsBlock === undefined) {
if (jsStarts) {
if (multiLines) {
throw `invalid blcok start \`\`\` in \`${line}\``;
}
jsBlock = jsStarts[1] || "";
code = "";
}
// NEVER
else if (jsEnds) {
throw `invalid block end \`\`\` in \`${line}\``;
}
// else NOT block
}
else { // if (jsBlock)
if (!jsEnds) {
if (jsStarts) {
throw `invalid block start \`\`\` in \`${line}\``;
}
jsBlock += "\t" + code;
code = "";
}
else { // if (jsEnds)
if (code != "```") {
throw `invalid block end \`\`\` in \`${line}\``;
}
code = jsBlock;
jsBlock = undefined;
jsCode = true;
}
}
if (code) {
if (!jsCode) {
/// replace inline js code with its returned value
// `js` -> eval(js)
code = code.replace(/`.*?`/g, (js) => {
// #see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/Function#:~:text=the%20Function%20constructor%20creates%20functions%20which%20execute%20in%20the%20global%20scope%20only
return (new Function(`"use strict"; return ${js.slice(1, -1)};`))();
});
console.debug(`01: code: ${code}`);
/// replace `＋－×÷＝` with `+-*/=`
code = code.replace(/＋/g, "+").replace(/－/g, "-").replace(/×/g, "*").replace(/÷/g, "/").replace(/＝/g, "=");
console.debug(`02: code: ${code}`);
/// replace single = with ==
code = code.replace(/(^|[^<!=>])=(?!=)/g, "$1==");
console.debug(`03: code: ${code}`);
/// validate symbols
if (/['"`\\\[\];]/g.test(code)) {
throw `invalid symbol in \`${line}\``;
}
// !!!: cannot use this regExp, because Safari and Swift does not support negative-lookbehind-assertion
// #see https://stackoverflow.com/a/2973495/456536
// let regExp = RegExp.make`
// (
// (?<! \w \s* \( \s* ) \{
// |
// \} (?! \s* \) )
// )
// `
// 匹配
// - 前边没有 `\w\(` 的 `{`
// 或
// - 后边没有 `)` 的 `}`
// 禁止 `{}` 符号，但允许 `f({})`
// 以便支持 RORO 参数，例如定义函数 `add({ a, b }): a + b`、调用函数 `add({ a: 4, b: 5 })`
if (/\}(?!\s*\))/g.test(code)) {
throw `invalid symbol in \`${line}\``;
}
/// prevent namespaces
// `xx.` || `.xx`
if (/\b[A-Za-z_][A-Za-z0-9_]*\s*\./g.test(code) || /\.\s*[A-Za-z_]/g.test(code)) {
throw `invalid dot in \`${line}\``;
}
}
/// find functions definition
// `fun({?[arg0[, argN]*]?}?):` // supports roro args https://www.tinyblog.dev/blog/2020-07-13-javascript-roro-pattern/
// `[A-Za-z_][A-Za-z0-9_]*` == `\b(?!\d)\w+\b`
let regExp = RegExp.make`
^ \s*
(?<name> \b[A-Za-z_][A-Za-z0-9_]* ) \s*
(?<args>
\(\s* \{? \s*
(
\b[A-Za-z_][A-Za-z0-9_]* \s*
(,\s* \b[A-Za-z_][A-Za-z0-9_]* \s* )*
)?
\}?\s* \)
) \s*
\: \s*
${/* opts: "" or "img" */""} # #see RegExp.make `;
let funcRes = code.match(regExp);
if (funcRes) {
funcName = funcRes.groups.name;
if (isBuiltin(funcName)) {
throw `invalid function definition in \`${line}\``;
}
funcArgs = funcRes.groups.args;
code = code.slice(funcRes.index + funcRes[0].length);
if (!code) {
throw `invalid function definition in \`${line}\``;
}
}
console.debug(`04: code: ${code}`);
/// find variables definition
// `(word-start) (no-number) words (word-end) colon`
let varRes = code.match(/^\b[A-Za-z_][A-Za-z0-9_]*\s*\:/);
if (varRes) {
varName = varRes[0].slice(0, -1).trim();
if (isBuiltin(varName)) {
throw `invalid variable definition in \`${line}\``;
}
code = code.slice(varRes.index + varRes[0].length).trim();
}
console.debug(`05: code: ${code}`);
if (!jsCode) {
/// auto insert `*` between number and other expr
code = code.replace(/(\d)\s+([A-Za-z_\$\(👆👆🏻👆🏼👆🏽👆🏾👆🏿])/g, "$1 * $2");
console.debug(`06: code: ${code}`);
/// validate functions and insert namespaces
// `(word-start) (no-number) words (word-end) [spaces] (left-parenthesis)`
code = code.replace(/\$?[A-Za-z_][A-Za-z0-9_]*\s*\(/g, (prefix) => {
let name = prefix.slice(0, -1).trim();
if (["constructor", "prototype", "toSource", "valueOf", "eval"].includes(name)) {
throw `invalid function \`${name}\` in \`${line}\``;
}
let namespace;
if (typeof funcs[name] == "function" || name == funcName) namespace = "funcs";
else if (typeof Math[name] == "function") namespace = "Math"; // just Math, no Number
else if (isValidGlobalFunc(name)) namespace = "globalThis";
else throw `invalid function \`${name}\` in \`${line}\``;
return `${namespace}.${name}(`;
});
console.debug(`07: code: ${code}`);
/// replace variables with values
// `(word-start) (no-number) words (word-end) (no- [spaces] (dot)(colon)(left-parenthesis))`
let regExp = RegExp.make`
\b
[A-Za-z_][A-Za-z0-9_]*
(?! \s* [\:\(]) # 后面有 ":" 的是 RORO 函数中的 argument label、有 "(" 的 function
\b
${"g"}`;
code = code.replace(/\b[A-Za-z_][A-Za-z0-9_]*(?!\s*[.:(])\b/g, (name) => {
if (funcName && new RegExp(`\\b${name}\\b`).test(funcArgs)) {
return name;
}
if (["constructor", "prototype", "toSource", "valueOf", "eval"].includes(name)) {
throw `invalid variable \`${name}\` in \`${line}\``;
}
let value = isValidBuiltinValue(name) ? builtinValue(name) : vars[name];
if (value === undefined) {
if (globalThis[name] !== undefined) {
throw `invalid variable \`${name}\` in \`${line}\``;
}
else {
value = name; // for `false`, and?
}
}
return `(${value})`;
});
console.debug(`08: code: ${code}`);
/// replace `$`, `$$`, ... and `$x` with values
// `dollar [numbers] (no-sum|avg|min|max)`
code = code.replace(/(\$+(?!sum|avg|min|max)|[👆👆🏻👆🏼👆🏽👆🏾👆🏿]+)(?!\d)/g, ($x) => {
let value = vals[vals.length - $x.match(/(\$|👆)/gu).length];
if (value === undefined) {
throw `invalid variable \`${name}\` in \`${line}\``;
}
return `(${value})`;
});
console.debug(`09: code: ${code}`);
code = code.replace(/\$\d+/g, ($x) => {
let index = Number($x.slice(1));
let value = vals[index];
if (value === undefined) {
throw `invalid variable \`${name}\` in \`${line}\``;
}
return `(${value})`;
});
console.debug(`10: code: ${code}`);
/// auto-prepend `$`, if `(line-start) (no-dollar) (no-words) (no-left-parenthesis)`
let prevRes = result[result.length - 1]; // if prev line has res, then prepend prev value - vars.$
// if ((prevRes || prevRes === 0 || prevRes === false) && code.length && code.match(/^([^!\(\w\$👆]|!=)/u))
if ((prevRes || prevRes === 0 || prevRes === false) && code.length && code.match(BI_TER_OPERATORS_START)) {
if (prevRes == "ERROR") {
throw `invalid result of prev line \`${prevRes}\` in \`${line}\``
}
code = `(${vars.$}) ${code}`;
}
console.debug(`11: code: ${code}`);
/// output percentage
resToPercentage = code.match(/%%\s*$/);
if (resToPercentage) {
code = code.slice(0, resToPercentage.index).trim();
}
console.debug(`12: code: ${code}`);
/// input percentage
code = code.replace(/(\d+(\.\d+)?)\s*%(?!\s*[\w\(])/g, (pct) => {
return `(${pct.replace(/\s*%/, "")} / 100)`;
});
console.debug(`13: code: ${code}`);
/// convert base of number system
let convert = code.match(/#\d+\s*$/);
if (convert) {
resToBase = Number(convert[0].slice(1));
if (resToBase < 2 || resToBase > 36) {
throw `invalid base \`${resToBase}\` in \`${line}\``
}
code = code.slice(0, convert.index).trim();
}
console.debug(`14: code: ${code}`);
}
/// eval
// if `jsCode`: requires `return` in `code`
// else: needs prepend `return` to `code` - `code` is math exp
let js = jsCode ? code : "return " + code; // `return` value
if (funcName) {
// return function as result
js = `return function ${funcName}${funcArgs} { ${js} }`; // `return` func
}
console.debug(`eval: ${js}`.replace(/%/g, "%%"));
// pass args funcs, vars and vals
let res = (new Function(`"use strict"; ${js}`))();
if (funcName) {
funcs[funcName] = res;
}
else {
value = res;
if (typeof value == "function") {
if (varName) {
funcName = varName;
funcArgs = "(...)";
funcs[funcName] = value;
varName = undefined;
value = undefined;
throw "WARNING: return func to var name is deprecated"
}
// !!!: DEPRECATED - js block returns a function
else if (value.name) {
funcName = value.name;
funcArgs = "(...)";
funcs[funcName] = value;
value = undefined;
throw "WARNING: return func to func name is deprecated"
}
}
}
} // end of `if (code)`
else {
value = undefined;
}
/// value, variables and display
let type = typeof value;
if (type == "number") {
let decimalPlaces = Number($decimalPlaces.value);
let rounding = decimalPlaces >= 0 && ((value, dp) => Math[$roundingMethod.value](value, dp));
if (rounding) {
value = rounding(value, decimalPlaces);
}
if (resToPercentage) {
let pctValue = value * 100;
if (rounding) {
pctValue = rounding(pctValue, decimalPlaces - 2);
}
display = pctValue + "%";
}
else if (resToBase && resToBase != 10) {
let prefix = (resToBase == 2) ? "0b" : (resToBase == 8) ? "0o" : (resToBase == 16) ? "0x" : "";
let suffix = !prefix && resToBase != 10 ? (" #" + resToBase) : "";
display = prefix + Math.abs(value).toString(resToBase).toUpperCase() + suffix;
if (value < 0) {
display = "-" + display;
}
}
else {
let absValue = Math.abs(value);
if (absValue < 1) {
let maxLength = 20; // limited by Number.toFixed()
if (absValue > Math.pow(10, - maxLength) && value.toString().indexOf("e") > 0) {
display = value.toFixed(maxLength);
}
}
else if (absValue > 1) {
if (value > Number.MAX_SAFE_INTEGER || value < Number.MIN_SAFE_INTEGER) {
display = value.toExponential();
}
// else if (value.toString().indexOf("e") > 0) {
// display = value.toLocaleString("fullwide", { useGrouping: false });
// }
}
}
}
else if (type == "bigint") {
if (resToBase && resToBase != 10) {
let prefix = (resToBase == 2) ? "0b" : (resToBase == 8) ? "0o" : (resToBase == 16) ? "0x" : "";
let suffix = !prefix && resToBase != 10 ? (" #" + resToBase) : "";
display = prefix + Math.abs(value).toString(resToBase).toUpperCase() + suffix;
if (value < 0) {
display = "-" + display;
}
}
else {
display = `BigInt: ${value}`
}
}
else if (type == "string") {
display = `String: ${value}`
}
else {
if (resToPercentage || resToBase) {
throw `invalid conversion \`${resToPercentage || resToBase}\` in \`${line}\``;
}
if (type == "boolean") {
// nothing to do
}
else {
if (varName) {
throw `invalid variable \`${varName}\` in \`${line}\``;
}
else if (value !== undefined) {
throw `invalid result \`${value}\` in \`${line}\``;
}
}
}
/// log
let log = value ? `${code} = ${display || value}` : (`${code} ${comment || ""}`.trim() || "<empty-line>");
console.log("res: " + log.replace(/%/g, "%%"));
}
catch(e) {
console.warn((e + "").replace(/%/g, "%%"));
if (vars._enable_error) {
value = `${e}`.startsWith("WARNING") ? e : "ERROR: " + e;
}
else {
value = `${e}`.startsWith("WARNING") ? "WARNING" : "ERROR";
}
}
/// result
result.push(display || value);
let text;
let type = typeof value;
if (["number", "bigint", "boolean", "string"].includes(type)) {
vals.push(value);
vars.$ = value;
if (varName) {
vars[varName] = value;
}
lineNumber.push(vals.length - 1);
text = `${code.replace(/\s*funcs\.\s*/g, "")} = ${display || value} ${comment || ""}`;
}
else {
lineNumber.push("·");
text = funcName ? `${funcName}${funcArgs}: ${code} ${comment || ""}` : comment;
}
output.push(text?.trim().replace(/ ?\t/g, " \\\n"));
});} // end of `for (let ln = 0; ln < lines.length; ln++)`
/// output
// let fixed = result.map((name, index) => name ? Number(name).toFixed(2) : name);
$result.value = result.join("\n");
$lineNumber.value = lineNumber.join("\n");
// 1. join lines with `\n`, 2. remove parentheses with single number, 3. remove leading space before `/\\$/mg`, 4. remove too many `\n`
copyOutput = output.join("\n").replace(/\(\s*(\d*\.?\d*)\s*\)/g, "$1").replace(/^ +(?=\\$)/mg, "").replace(/\n{3,}/g, "\n\n");
let lnLength = vals.length.toString().length;
document.documentElement.style.setProperty("--ln-width", Math.max(2, lnLength) * 10 + "px");
let errorsCount = result.reduce((obj, res) => {
if (typeof res == "string") {
if (res.startsWith("ERROR")) obj.errors += 1;
else if (res.startsWith("WARNING")) obj.warnings += 1;
}
return obj;
}, { errors: 0, warnings: 0 });
let text = [
errorsCount.errors && "errors: "+ errorsCount.errors,
errorsCount.warnings && "warnings: " + errorsCount.warnings,
].filter((res) => res).join(", ");
document.querySelector("#errorsCount").innerText = text ? text + " |" : null;
});}
function updateScriptStyle() {
$script.classList[$underline.checked ? "add" : "remove"]("underline");
}
function updateBorderStyle() {
let urlTooLoong = location.href.length > 65536;
$script.style.outlineColor = $result.style.outlineColor = (urlTooLoong ? "red" : null);
// TODO: navigator.userAgentData
if (navigator.userAgent.indexOf("Safari") >= 0) {
$script.style.outlineStyle = $result.style.outlineStyle = (urlTooLoong ? "solid" : null);
}
if (urlTooLoong) {
console.error(`url is too loong: ${location.href.length}!`);
}
}
function updateRuler() {
if (vars._enable_ruler == false) {
$ruler.style.visibility = "hidden";
return;
}
let script = $script.value;
let start = $script.selectionStart;
let end = script.indexOf("\n", start);
if (end < 0) {
end = script.length;
}
$rulerHelper.innerText = script.slice(start, end);
$left.appendChild($rulerHelper);
let width = $rulerHelper.offsetWidth;
let space = (parseFloat(window.getComputedStyle($script).getPropertyValue("padding-right"))
+ parseFloat(window.getComputedStyle($script).getPropertyValue("border-right-width")));
$ruler.style.visibility = width <= space ? "hidden" : "visible";
// `+ 1` (caret width) to avoid overlapping the ruler and caret
$ruler.style.right = Math.ceil(width + 1) + "px"
$rulerHelper.remove();
}
let jsSerializeToHash = false;
const selectionPlaceholder = 1000000;
// TODO: `-?` and `.?` instead of `-` to backward compatible with `start|end`
const selectionRegExp = /-?(\d+).?(\d+)$/;
// const selectionRegExp = /-(\d+)-(\d+)$/;
// base64 -> encode("+/=") -> "%2B%2F%3D"
// #see https://developer.mozilla.org/en-US/docs/Glossary/Base64#the_unicode_problem
// #see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent#encoding_for_content-disposition_and_link_headers
const encode = (x) => btoa(unescape(encodeURIComponent(x))).replace(/[\+\/=]/g, encodeURIComponent);
const decode = (x) => decodeURIComponent(escape(atob(x.replace(/%(?:2B|2F|3D)/g, decodeURIComponent))));
function serializeToHash() { debugFunc(arguments, function() {
let json = {};
if ($decimalPlaces.selectedIndex) {
json.decimalPlaces = $decimalPlaces.selectedIndex;
}
if ($roundingMethod.selectedIndex) {
json.roundingMethod = $roundingMethod.selectedIndex;
}
if ($underline.checked) {
json.underline = true;
}