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cppedit.html
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cppedit.html
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<!DOCTYPE html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>C++输入法</title>
<style>
* {
box-sizing: border-box;
}
body {
margin: 0;
padding: 0;
display: flex;
flex-direction: column;
height: 100vh;
color: var(--base00);
font-size: 12px;
overflow: hidden;
--yellow: #b58900;
--orange: #cb4b16;
--red: #dc322f;
--magenta: #d33682;
--violet: #6c71c4;
--blue: #268bd2;
--cyan: #2aa198;
--green: #859900;
--base03: silver;
--base02: silver;
--base01: silver;
--base00: silver;
--base0: silver;
--base1: silver;
--base2: silver;
--base3: silver;
}
body.light {
--base03: #002b36;
--base02: #073642;
--base01: #586e75;
--base00: #657b83;
--base0: #839496;
--base1: #93a1a1;
--base2: #eee8d5;
--base3: #fdf6e3;
}
body.dark {
--base03: #fdf6e3;
--base02: #eee8d5;
--base01: #93a1a1;
--base00: #839496;
--base0: #657b83;
--base1: #586e75;
--base2: #073642;
--base3: #002b36;
}
#cpp {
border-style: none;
resize: none;
flex: 1;
font-family: monospace;
font-size: 1.2rem;
background-color: var(--base3);
color: var(--base00);
border-style: none;
}
#tools {
flex: 0 11rem;
overflow-y: auto;
display: grid;
grid-template-columns: repeat(auto-fill, minmax(7rem, 1fr));
background-color: var(--base2);
font-size: 1rem;
}
#tools > button {
border-style: none;
flex: 1;
font-size: 1rem;
background-color: var(--base2);
color: var(--base00);
height: 2.5rem;
}
#tools > button:active {
background-color: var(--base00);
color: var(--base2);
font-weight: bold;
}
#tools > fieldset {
grid-column: 1 / -1;
border-color: var(--base1);
border-style: solid;
}
legend {
font-size: 0.8em;
color: var(--base1);
}
.radio-group {
display: flex;
flex-direction: row;
}
.radio-group > * {
flex: 1;
}
.radio-group > :active {
background-color: var(--base00);
color: var(--base2);
font-weight: bold;
}
.radio-group input[type="radio"] {
display: none;
}
.radio-group input[type="radio"] + * {
display: block;
width: 100%;
text-align: center;
}
.radio-group input[type="radio"]:checked + * {
font-weight: bold;
color: var(--base01);
border-bottom: thin solid var(--base00);
}
.icon-adjust, .icon-play {
display: inline-block;
vertical-align: -0.5ex;
width: 1em;
height: 1em;
}
.icon-adjust::before {
content: "";
display: inline-block;
width: 0.5em;
height: 1em;
border-radius: 0.5em 0 0 0.5em;
background-color: currentcolor;
}
.icon-adjust::after {
content: "";
display: inline-block;
box-sizing: border-box;
width: 0.5em;
height: 1em;
border-radius: 0 0.5em 0.5em 0;
border: 0.05em solid currentcolor;
border-left-style: none;
}
.icon-play::before {
content: "";
display: inline-block;
box-sizing: content-box;
width: 0;
height: 0;
margin: 0 0.25em;
border-style: solid;
border-width: 0.5em 0 0.5em 0.5em;
border-color: transparent transparent transparent currentcolor;
}
</style>
<textarea id="cpp"></textarea>
<div id="tools">
<button onclick="cpp.select();document.execCommand('copy');">全部复制</button>
<button onclick="prev();">上一占位符</button>
<button onclick="next();">下一占位符</button>
<button onclick="cpp.focus();document.execCommand('cut');">随缘剪切</button>
<button onclick="cpp.focus();document.execCommand('copy');">随缘复制</button>
<button onclick="cpp.focus();document.execCommand('paste');">随缘粘贴</button>
<button onclick="ins('\t');">制表符</button>
<button onclick="ins(';');"><code>;</code></button>
<button onclick="ins('[□]');"><code>[ ]</code></button>
<button onclick="ins('{□}');"><code>{ }</code></button>
<button onclick="ins('<');"><code><</code></button>
<button onclick="ins('>');"><code>></code></button>
<button onclick="ins('&&');"><code>&&</code></button>
<button onclick="ins('||');"><code>||</code></button>
<button onclick="ins('\\n');"><code>\n</code></button>
<fieldset>
<legend>循环变量</legend>
<div class="radio-group">
<label><input type="radio" name="loopvar" checked><var>i</var></label>
<label><input type="radio" name="loopvar"><var>j</var></label>
<label><input type="radio" name="loopvar"><var>k</var></label>
<label><input type="radio" name="loopvar"><var>a</var></label>
<label><input type="radio" name="loopvar"><var>b</var></label>
<label><input type="radio" name="loopvar"><var>c</var></label>
<label><input type="radio" name="loopvar"><var>d</var></label>
<label><input type="radio" name="loopvar"><var>m</var></label>
<label><input type="radio" name="loopvar"><var>n</var></label>
<label><input type="radio" name="loopvar"><var>x</var></label>
<label><input type="radio" name="loopvar"><var>y</var></label>
</div>
</fieldset>
<button onclick="insline('#include <cstdio>\n#include <iostream>\n#include <iomanip>\nusing namespace std;\n\nint main(int argc, char *argv[]) {\n□\nreturn 0;\n}');">主程序</button>
<button onclick="insline('#include <□>');">包含头</button>
<button onclick="insline('cin >> □;');">流输入</button>
<button onclick="insline('scanf("%d", &□);');">C风格输入</button>
<button onclick="insline('cout << □ << endl;');">流输出</button>
<button onclick="insline('ios::sync_with_stdio(false);');">禁用流同步</button>
<button onclick="insline('printf("%d", □);');">C风格输出</button>
<button onclick="insline('if (□) {\n□;\n} else {\n}');">判断</button>
<button onclick="insline('for (;;) {\n□;\n}');">循环</button>
<button onclick="insline('for (int ★ = 0; ★ < □; ++★) {\n□;\n}');">计次循环</button>
<button onclick="insline('while (□) {\n□;\n}');">判断循环</button>
<button onclick="insline('struct □ {\n□;\n};');">结构体</button>
<button onclick="insline('class □ {\nprivate:\n□;\npublic:\n□;\n};');">类</button>
<button onclick="alert('运行个鬼');"><span class="icon-play"></span> 没法运行</button>
<button onclick="autoindent();">重算缩进</button>
<fieldset>
<legend>制表位大小</legend>
<input type="range" min="2" max="8" value="8" oninput="cpp.style.tabSize = this.value; cpp.style.MozTabSize = this.value; this.nextSibling.nextSibling.innerHTML = this.value;">
<span>8</span>
</fieldset>
<button onclick="togglelightdark();"><span class="icon-adjust"></span> 主题</button>
<button onclick="alert('【cppedit】\nFrog Chen制作的非常简陋的C++程序输入法，主要用于在手机上写数据结构课的作业。\n作者是个连关于框都懒得仔细做的屑。\n原始发布地址：https://salenzo.github.io/Utilities/cppedit.html\n使用了Solarized色彩方案，地址：https://ethanschoonover.com/solarized/');">关于</button>
</div>
<script>
if (window.location.hash == "#light") {
document.body.classList.add("light");
} else if (window.location.hash == "#dark") {
document.body.classList.add("dark");
} else {
if (window.matchMedia("prefers-color-scheme: light").matches) {
window.location.hash = "#light";
document.body.classList.add("light");
} else {
window.location.hash = "#dark";
document.body.classList.add("dark");
}
}
function togglelightdark() {
if (document.body.classList.contains("dark")) {
document.body.classList.remove("dark");
document.body.classList.add("light");
window.location.hash = "#light";
} else {
document.body.classList.remove("light");
document.body.classList.add("dark");
window.location.hash = "#dark";
}
}
window.onhashchange = function () {
if (window.location.hash == "#light") {
document.body.classList.remove("dark");
document.body.classList.add("light");
} else {
window.location.hash = "#dark";
document.body.classList.remove("light");
document.body.classList.add("dark");
}
}
window.onbeforeunload = function (e) {
if (cpp.value.trim().length) {
e.preventDefault();
e.returnValue = "";
} else {
delete e["returnValue"];
}
};
function preprocess(text) {
text = text.replace(/★/g, document.querySelector('input[name="loopvar"]:checked').parentNode.innerText);
return text;
}
function ins(text) {
text = preprocess(text);
cpp.focus();
cpp.setRangeText(text, cpp.selectionStart, cpp.selectionEnd, "end");
if (text.indexOf("□") >= 0) {
let index = cpp.value.lastIndexOf("□", cpp.selectionStart);
cpp.setSelectionRange(index, index + 1, "forward");
}
}
function insline(text) {
text = preprocess(text);
let str = "\n" + cpp.value + "\n";
let str_before = str.slice(0, str.lastIndexOf("\n", cpp.selectionStart + 1) + 1).trimStart();
let str_after = str.slice(str.lastIndexOf("\n", cpp.selectionEnd + 1)).trimEnd();
str = "\n" + str_before + text + str_after + "\n";
cpp.value = str;
if (text.indexOf("□") >= 0) {
let index = 1 + str_before.length + text.indexOf("□");
cpp.setSelectionRange(index, index + 1, "forward");
cpp.focus();
}
}
function prev() {
let index = cpp.value.lastIndexOf("□", cpp.selectionStart - 1);
if (index < 0) {
index = cpp.value.lastIndexOf("□");
if (index < 0) {
return;
}
}
cpp.setSelectionRange(index, index + 1, "forward");
cpp.focus();
}
function next() {
let index = cpp.value.indexOf("□", cpp.selectionStart + 1);
if (index < 0) {
index = cpp.value.indexOf("□");
if (index < 0) {
return;
}
}
cpp.setSelectionRange(index, index + 1, "forward");
cpp.focus();
}
function autoindent() {
let indent = 0;
cpp.value = cpp.value.split("\n").map(line => {
line = line.trim();
if (!line.length) return line;
if (line[0] == "}") {
indent--;
}
line = "\t".repeat(line[line.length - 1] == ":" ? indent - 1 : indent) + line;
if (line[line.length - 1] == "{") {
indent++;
}
return line;
}).join("\n");
}
</script>