diff options
Diffstat (limited to 'html/playground')
| -rw-r--r-- | html/playground/counter.html | 262 | ||||
| -rw-r--r-- | html/playground/index.html | 435 | ||||
| -rw-r--r-- | html/playground/little-regex.html | 728 | ||||
| -rw-r--r-- | html/playground/regex.html | 477 | ||||
| -rw-r--r-- | html/playground/scheme.html | 123 |
5 files changed, 1693 insertions, 332 deletions
diff --git a/html/playground/counter.html b/html/playground/counter.html new file mode 100644 index 0000000..1b16f54 --- /dev/null +++ b/html/playground/counter.html @@ -0,0 +1,262 @@ +<html lang="en"><head> + <meta charset="UTF-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0"> + <title>JavaScript Playground</title> + <meta name="description" content="A JavaScript jungle-gym for doing experiments and sharing scrappy fiddles."> + <style> + body { + display: flex; + flex-direction: column; + align-items: center; + background-color: #ddd; + padding: 10px; + height: 100vh; + margin: 0; + } + + textarea { + width: 100%; + height: 64%; + font-family: monospace; + background-color: #FFFEEC; + border: 2px solid #000; + scrollbar-width: none; + font-size: 1rem; + margin-bottom: 10px; + padding: 10px; + box-sizing: border-box; + resize: none; + border-bottom: 12px solid teal; + -webkit-user-modify: read-write-plaintext-only; + } + + textarea::-webkit-scrollbar { + display: none; + } + + textarea::selection { + background-color: #EFECA7; + } + + textarea:focus { + outline: none; + } + + #console { + width: 100%; + height: 22%; + background-color: #000; + color: #0fc; + font-family: monospace; + font-size: 1rem; + overflow-y: auto; + padding: 10px; + box-sizing: border-box; + white-space: pre-wrap; + } + + .button-container { + width: 100%; + display: flex; + justify-content: flex-end; + margin-bottom: 10px; + } + + button { + padding: 10px 20px; + font-size: 1rem; + margin-left: 10px; + cursor: pointer; + border: none; + transition: background-color 0.3s ease; + } + + button:hover, button:focus { + outline: none; + } + + button.run { + background-color: teal; + color: #FFFFFF; + } + </style> +</head> +<body> + + <div class="playground" id="playground"> + <div class="seesaw" id="seesaw"></div> + <div class="slide" id="slide"></div> + </div> + + <div class="button-container"> + <button onclick="clearEverything()">Clear</button> + <button onclick="downloadCodeAndEditor()">Download</button> + <button onclick="shareCode()">Share</button> + <button onclick="evaluateCode()" class="run">Run Code</button> + </div> + <textarea id="codeInput">mount(playground => { + const d = document.createElement('div'); + const p = document.createElement('p'); + const b = document.createElement('button'); + const b2 = document.createElement('button'); + + d.style = 'border: 1px solid black; padding: 2em'; + p.textContent = 'Count: 0'; + p.style = 'text-align: center; font-weight: bold'; + b.textContent = 'Click Me'; + b2.textContent = 'Reset'; + b2.style = 'background-color: red; color: white'; + d.append(p,b,b2); + + let count = 0; + b.onclick = () => { count++; p.innerHTML = 'Count: ' + count; } + b2.onclick = () => { count = 0; p.innerHTML = 'Count: ' + count; } + + playground.appendChild(d); +}); +</textarea> + <div id="console"></div> + + <script> + function evaluateCode() { + const code = document.getElementById('codeInput').value; + const consoleDiv = document.getElementById('console'); + consoleDiv.innerHTML = ''; + + // Custom console.log function to output to the console div + const originalConsoleLog = console.log; + console.log = function(...args) { + args.forEach(arg => { + const output = document.createElement('div'); + output.textContent = typeof arg === 'object' ? JSON.stringify(arg, null, 2) : arg; + consoleDiv.appendChild(output); + }); + originalConsoleLog.apply(console, args); + }; + + try { + eval(code); + } catch (error) { + const errorOutput = document.createElement('div'); + errorOutput.textContent = error; + errorOutput.style.color = 'red'; + consoleDiv.appendChild(errorOutput); + } + + // Restore browser's console.log + console.log = originalConsoleLog; + } + + function downloadCodeAndEditor() { + const codeInput = document.getElementById('codeInput').value; + const htmlContent = document.documentElement.outerHTML.replace( + /<textarea id="codeInput"[^>]*>.*<\/textarea>/, + `<textarea id="codeInput">${codeInput}</textarea>` + ); + + const blob = new Blob([htmlContent], { type: 'text/html' }); + const url = URL.createObjectURL(blob); + const a = document.createElement('a'); + a.href = url; + a.download = 'code_editor.html'; + document.body.appendChild(a); + a.click(); + document.body.removeChild(a); + URL.revokeObjectURL(url); + } + + function shareCode() { + const code = document.getElementById('codeInput').value; + const encodedCode = btoa(encodeURIComponent(code)); + window.location.hash = encodedCode; + window.prompt("Copy the URL to share.\nBe warned! Very long URLs don't share wicked well, sometimes.", window.location.href); + } + + function clearEverything() { + if (!confirm('Are you sure you want to reset the playground?')) { + return; + } else { + window.location.hash = ''; + window.location.reload(); + } + } + + function loadCodeFromHash() { + const hash = window.location.hash.substring(1); + if (hash) { + try { + const decodedCode = decodeURIComponent(atob(hash)); + document.getElementById('codeInput').value = decodedCode; + } catch (error) { + console.error('Failed to decode the URL hash:', error); + } + } + } + + function help() { + const helpText = ` + Welcome to the JavaScript Playground! Here are some tips to get you started: + + 1. Enter your JavaScript code in the textarea. + 2. Click the "Run Code" button to execute your code. + 3. The console output will be displayed below the textarea. + 4. Click the "Clear" button to reset the playground. + 5. Click the "Download" button to save your code and editor as an HTML file. + 6. Click the "Share" button to generate a URL to share your code with others. + 7. You can also press "Cmd + Enter" to run your code. + 8. There's an empty div above the buttons with the id "playground" + 9. You can mount stuff to it using the "mount" function, for more info run "mountHelp()" + 10. You can use the "clear()" function to clear the content's of the console. + + Go nuts! Share scrappy fiddles! + `; + console.log(helpText); + } + + function clear() { + document.getElementById('console').innerHTML = ''; + } + + function mountHelp() { + console.log(` + The mount function is used to mount stuff to the playground div. + It takes a function as an argument, which in turn receives the playground div as an argument. + Before mounting, it clears the playground div. + Here's an example of how to use the mount function: + + mount(playground => { + const h1 = document.createElement('h1'); + h1.textContent = 'Hell is empty and all the devils are here.'; + playground.appendChild(h1); + }); + + This will add an h1 element to the playground div. + `); + } + + function mount(mountFunction) { + const playground = document.getElementById('playground'); + if (!playground) { + console.error("Couldn't find a div with the id 'playground'! You may need to reload the page."); + return; + } + + if (playground.innerHTML.trim() !== "") { + playground.innerHTML = ""; + } + mountFunction(playground); + } + + + document.getElementById('codeInput').addEventListener('keydown', function(event) { + if (event.metaKey && event.key === 'Enter') { + event.preventDefault(); + evaluateCode(); + } + }); + + window.onload = loadCodeFromHash; + </script> + + +</body></html> \ No newline at end of file diff --git a/html/playground/index.html b/html/playground/index.html index 680f022..a236d2f 100644 --- a/html/playground/index.html +++ b/html/playground/index.html @@ -6,238 +6,243 @@ <title>JavaScript Playground</title> <meta name="description" content="A JavaScript jungle-gym for doing experiments and sharing scrappy fiddles."> <style> - body { - display: flex; - flex-direction: column; - align-items: center; - background-color: #ddd; - padding: 10px; - height: 100vh; - margin: 0; - } - - textarea { - width: 100%; - height: 64%; - font-family: monospace; - background-color: #FFFEEC; - border: 2px solid #000; - scrollbar-width: none; - font-size: 1rem; - margin-bottom: 10px; - padding: 10px; - box-sizing: border-box; - resize: none; - border-bottom: 12px solid teal; - -webkit-user-modify: read-write-plaintext-only; - } - - textarea::-webkit-scrollbar { - display: none; - } - - textarea::selection { - background-color: #EFECA7; - } - - textarea:focus { - outline: none; - } - - #console { - width: 100%; - height: 22%; - background-color: #000; - color: #0fc; - font-family: monospace; - font-size: 1rem; - overflow-y: auto; - padding: 10px; - box-sizing: border-box; - white-space: pre-wrap; - } - - .button-container { - width: 100%; - display: flex; - justify-content: flex-end; - margin-bottom: 10px; - } - - button { - padding: 10px 20px; - font-size: 1rem; - margin-left: 10px; - cursor: pointer; - border: none; - transition: background-color 0.3s ease; - } - - button:hover, button:focus { - outline: none; - } - - button.run { - background-color: teal; - color: #FFFFFF; - } + html, body { height: 100%; margin: 0; padding: 0; } + body { display: flex; flex-direction: column; background-color: #ddd; } + #app { display: flex; flex-direction: column; padding: 10px; height: 100%; box-sizing: border-box; } + .button-container { width: 100%; display: flex; justify-content: flex-end; margin-bottom: 10px; flex-shrink: 0; } + button { padding: 10px 20px; font-size: 1rem; margin-left: 10px; cursor: pointer; border: none; transition: background-color 0.3s ease; } + button:hover, button:focus { outline: none; } + button:disabled { background-color: #999; cursor: not-allowed; } + button.run { background-color: teal; color: #FFFFFF; } + textarea { width: 100%; height: 64%; font-family: monospace; background-color: #FFFEEC; border: 2px solid #000; scrollbar-width: none; font-size: 1rem; margin-bottom: 10px; padding: 10px; box-sizing: border-box; resize: none; border-bottom: 12px solid teal; -webkit-user-modify: read-write-plaintext-only; flex-shrink: 0; } + textarea::-webkit-scrollbar { display: none; } + textarea::selection { background-color: #EFECA7; } + textarea:focus { outline: none; } + #console { width: 100%; height: 22%; background-color: #000; color: #0fc; font-family: monospace; font-size: 1rem; overflow-y: auto; padding: 10px; box-sizing: border-box; white-space: pre-wrap; flex-grow: 1; } + #console .log-item { margin-bottom: 5px; border-bottom: 1px solid #333; } + #console details { cursor: pointer; } + #console summary { outline: none; } </style> </head> <body> + <div id="app"></div> - <div class="playground" id="playground"> - <div class="seesaw" id="seesaw"></div> - <div class="slide" id="slide"></div> - </div> - - <div class="button-container"> - <button onclick="clearEverything()">Clear</button> - <button onclick="downloadCodeAndEditor()">Download</button> - <button onclick="shareCode()">Share</button> - <button onclick="evaluateCode()" class="run">Run Code</button> - </div> - <textarea id="codeInput" placeholder="Enter JavaScript..." spellcheck="false"></textarea> - <div id="console"></div> + <iframe id="sandbox" style="display: none;" title="JavaScript Sandbox"></iframe> <script> - function evaluateCode() { - const code = document.getElementById('codeInput').value; - const consoleDiv = document.getElementById('console'); - consoleDiv.innerHTML = ''; - - // Custom console.log function to output to the console div - const originalConsoleLog = console.log; - console.log = function(...args) { - args.forEach(arg => { - const output = document.createElement('div'); - output.textContent = typeof arg === 'object' ? JSON.stringify(arg, null, 2) : arg; - consoleDiv.appendChild(output); - }); - originalConsoleLog.apply(console, args); - }; - - try { - eval(code); - } catch (error) { - const errorOutput = document.createElement('div'); - errorOutput.textContent = error; - errorOutput.style.color = 'red'; - consoleDiv.appendChild(errorOutput); + /** + * ---------------------------------------------------------------- + * Functional Utilities + * ---------------------------------------------------------------- + */ + + const pipe = (...fns) => (initialValue) => fns.reduce((acc, fn) => fn(acc), initialValue); + const compose = (...fns) => (initialValue) => fns.reduceRight((acc, fn) => fn(acc), initialValue); + + /** + * ---------------------------------------------------------------- + * The Elm Architecture (Model, View, Update) Implementation + * ---------------------------------------------------------------- + */ + + const init = { + code: ` + const add = (a, b) => a + b; + const multiply = (a, b) => a * b; + + const addAndMultiply = pipe(add, multiply); + + console.log(addAndMultiply(2, 3)); +`, + consoleOutput: [], + sandboxReady: false, + }; + + const view = (model) => ` + <div class="button-container"> + <button onclick="dispatch({ type: 'CLEAR' })">Clear</button> + <button onclick="dispatch({ type: 'DOWNLOAD' })">Download</button> + <button onclick="dispatch({ type: 'SHARE' })">Share</button> + <button onclick="dispatch({ type: 'RUN_CODE' })" class="run" ${!model.sandboxReady ? 'disabled title="Sandbox is loading..."' : ''}>Run Code</button> + </div> + <textarea id="codeInput" oninput="dispatch({ type: 'CODE_CHANGED', payload: this.value })" onkeydown="handleKeyDown(event)">${model.code}</textarea> + <div id="console"> + ${model.consoleOutput.map(log => { + if (typeof log === 'object' && log !== null) { + return `<div class="log-item"><details><summary>${Object.prototype.toString.call(log)}</summary><pre>${JSON.stringify(log, null, 2)}</pre></details></div>`; + } + return `<div class="log-item">${log}</div>`; + }).join('')} + </div> + `; + + const update = (msg, model) => { + switch (msg.type) { + case 'CODE_CHANGED': + return { ...model, code: msg.payload }; + + case 'RUN_CODE': + return model; + + case 'CONSOLE_LOG': + return { ...model, consoleOutput: [...model.consoleOutput, ...msg.payload] }; + + case 'CLEAR': + if (confirm('Are you sure you want to reset the playground?')) { + window.location.hash = ''; + window.location.reload(); + } + return model; + + case 'CLEAR_CONSOLE': + return { ...model, consoleOutput: [] }; + + case 'SHARE': + case 'DOWNLOAD': + return model; + + case 'SANDBOX_READY': + return { ...model, sandboxReady: true }; + + default: + return model; } - - // Restore browser's console.log - console.log = originalConsoleLog; - } - - function downloadCodeAndEditor() { - const codeInput = document.getElementById('codeInput').value; - const htmlContent = document.documentElement.outerHTML.replace( - /<textarea id="codeInput"[^>]*>.*<\/textarea>/, - `<textarea id="codeInput">${codeInput}</textarea>` - ); - - const blob = new Blob([htmlContent], { type: 'text/html' }); - const url = URL.createObjectURL(blob); - const a = document.createElement('a'); - a.href = url; - a.download = 'code_editor.html'; - document.body.appendChild(a); - a.click(); - document.body.removeChild(a); - URL.revokeObjectURL(url); - } - - function shareCode() { - const code = document.getElementById('codeInput').value; - const encodedCode = btoa(encodeURIComponent(code)); - window.location.hash = encodedCode; - window.prompt("Copy the URL to share.\nBe warned! Very long URLs don't share wicked well, sometimes.", window.location.href); - } - - function clearEverything() { - if (!confirm('Are you sure you want to reset the playground?')) { - return; - } else { - window.location.hash = ''; - window.location.reload(); + }; + + /** + * ---------------------------------------------------------------- + * Application Core & Side-Effect Handling + * ---------------------------------------------------------------- + */ + + let model = null; + const appContainer = document.getElementById('app'); + const sandbox = document.getElementById('sandbox'); + + const dispatch = (msg) => { + const newModel = update(msg, model); + handleSideEffects(msg, newModel); + model = newModel; + render(model); + }; + + const handleSideEffects = (msg, model) => { + if (msg.type === 'RUN_CODE') { + if (!model.sandboxReady) return; + dispatch({ type: 'CLEAR_CONSOLE' }); + sandbox.contentWindow.postMessage({ code: model.code }, '*'); + } else if (msg.type === 'SHARE') { + const encodedCode = btoa(encodeURIComponent(model.code)); + window.location.hash = encodedCode; + window.prompt("Copy the URL to share.", window.location.href); + } else if (msg.type === 'DOWNLOAD') { + const htmlContent = document.documentElement.outerHTML.replace( + /<textarea id="codeInput"[^>]*>.*<\/textarea>/, + `<textarea id="codeInput">${model.code}</textarea>` + ); + const blob = new Blob([htmlContent], { type: 'text/html' }); + const url = URL.createObjectURL(blob); + const a = document.createElement('a'); + a.href = url; + a.download = 'playground.html'; + a.click(); + URL.revokeObjectURL(url); } - } - - function loadCodeFromHash() { - const hash = window.location.hash.substring(1); - if (hash) { - try { - const decodedCode = decodeURIComponent(atob(hash)); - document.getElementById('codeInput').value = decodedCode; - } catch (error) { - console.error('Failed to decode the URL hash:', error); + }; + + const render = (model) => { + const focusedElementId = document.activeElement?.id; + const selectionStart = document.activeElement?.selectionStart; + const selectionEnd = document.activeElement?.selectionEnd; + + appContainer.innerHTML = view(model); + + if (focusedElementId === 'codeInput') { + const focusedElement = document.getElementById(focusedElementId); + if (focusedElement) { + focusedElement.focus(); + if (typeof selectionStart === 'number') { + focusedElement.selectionStart = selectionStart; + focusedElement.selectionEnd = selectionEnd; + } } } - } + }; - function help() { - const helpText = ` - Welcome to the JavaScript Playground! Here are some tips to get you started: - - 1. Enter your JavaScript code in the textarea. - 2. Click the "Run Code" button to execute your code. - 3. The console output will be displayed below the textarea. - 4. Click the "Clear" button to reset the playground. - 5. Click the "Download" button to save your code and editor as an HTML file. - 6. Click the "Share" button to generate a URL to share your code with others. - 7. You can also press "Cmd + Enter" to run your code. - 8. There's an empty div above the buttons with the id "playground" - 9. You can mount stuff to it using the "mount" function, for more info run "mountHelp()" - 10. You can use the "clear()" function to clear the content's of the console. - - Go nuts! Share scrappy fiddles! - `; - console.log(helpText); - } - - function clear() { - document.getElementById('console').innerHTML = ''; - } - - function mountHelp() { - console.log(` - The mount function is used to mount stuff to the playground div. - It takes a function as an argument, which in turn receives the playground div as an argument. - Before mounting, it clears the playground div. - Here's an example of how to use the mount function: - - mount(playground => { - const h1 = document.createElement('h1'); - h1.textContent = 'Hell is empty and all the devils are here.'; - playground.appendChild(h1); - }); - - This will add an h1 element to the playground div. - `); - } - - function mount(mountFunction) { - const playground = document.getElementById('playground'); - if (!playground) { - console.error("Couldn't find a div with the id 'playground'! You may need to reload the page."); - return; + const handleKeyDown = (event) => { + if (event.key === 'Tab') { + event.preventDefault(); + const start = event.target.selectionStart; + const end = event.target.selectionEnd; + event.target.value = event.target.value.substring(0, start) + " " + event.target.value.substring(end); + dispatch({ type: 'CODE_CHANGED', payload: event.target.value }); + event.target.selectionStart = event.target.selectionEnd = start + 2; } + if (event.metaKey && event.key === 'Enter') { + event.preventDefault(); + dispatch({ type: 'RUN_CODE' }); + } + }; + + /** + * ---------------------------------------------------------------- + * Sandbox Initialization + * ---------------------------------------------------------------- + */ + + const sandboxSrc = ` + <script> + const pipe = ${pipe.toString()}; + const compose = ${compose.toString()}; + + const originalConsoleLog = console.log; + console.log = (...args) => { + parent.postMessage({ type: 'CONSOLE_LOG', payload: args }, '*'); + }; + + window.addEventListener('message', (event) => { + try { + eval(event.data.code); + } catch (e) { + console.log(e.toString()); + } + }); + <\/script> + `; - if (playground.innerHTML.trim() !== "") { - playground.innerHTML = ""; + window.addEventListener('message', (event) => { + if (event.source === sandbox.contentWindow && event.data.type === 'CONSOLE_LOG') { + dispatch(event.data); } - mountFunction(playground); + }); + + /** + * ---------------------------------------------------------------- + * Application Entry Point + * ---------------------------------------------------------------- + */ + + const hash = window.location.hash.substring(1); + if (hash) { + try { + const decodedCode = decodeURIComponent(atob(hash)); + model = { ...init, code: decodedCode }; + } catch (error) { + console.error('Failed to decode the URL hash:', error); + model = init; + } + } else { + model = init; } + render(model); - document.getElementById('codeInput').addEventListener('keydown', function(event) { - if (event.metaKey && event.key === 'Enter') { - event.preventDefault(); - evaluateCode(); - } - }); + sandbox.onload = () => { + dispatch({ type: 'SANDBOX_READY' }); + }; + + sandbox.srcdoc = sandboxSrc; - window.onload = loadCodeFromHash; </script> </body> -</html> +</html> \ No newline at end of file diff --git a/html/playground/little-regex.html b/html/playground/little-regex.html new file mode 100644 index 0000000..c09139f --- /dev/null +++ b/html/playground/little-regex.html @@ -0,0 +1,728 @@ +<html lang="en"><head> + <meta charset="UTF-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0"> + <title>JavaScript Playground</title> + <meta name="description" content="A JavaScript jungle-gym for doing experiments and sharing scrappy fiddles."> + <style> + body { + display: flex; + flex-direction: column; + align-items: center; + background-color: #ddd; + padding: 10px; + height: 100vh; + margin: 0; + } + + textarea { + width: 100%; + height: 64%; + font-family: monospace; + background-color: #FFFEEC; + border: 2px solid #000; + scrollbar-width: none; + font-size: 1rem; + margin-bottom: 10px; + padding: 10px; + box-sizing: border-box; + resize: none; + border-bottom: 12px solid teal; + -webkit-user-modify: read-write-plaintext-only; + } + + textarea::-webkit-scrollbar { + display: none; + } + + textarea::selection { + background-color: #EFECA7; + } + + textarea:focus { + outline: none; + } + + #console { + width: 100%; + height: 22%; + background-color: #000; + color: #0fc; + font-family: monospace; + font-size: 1rem; + overflow-y: auto; + padding: 10px; + box-sizing: border-box; + white-space: pre-wrap; + } + + .button-container { + width: 100%; + display: flex; + justify-content: flex-end; + margin-bottom: 10px; + } + + button { + padding: 10px 20px; + font-size: 1rem; + margin-left: 10px; + cursor: pointer; + border: none; + transition: background-color 0.3s ease; + } + + button:hover, button:focus { + outline: none; + } + + button.run { + background-color: teal; + color: #FFFFFF; + } + </style> +</head> +<body> + + <div class="playground" id="playground"> + <div class="seesaw" id="seesaw"></div> + <div class="slide" id="slide"></div> + </div> + + <div class="button-container"> + <button onclick="clearEverything()">Clear</button> + <button onclick="downloadCodeAndEditor()">Download</button> + <button onclick="shareCode()">Share</button> + <button onclick="evaluateCode()" class="run">Run Code</button> + </div> + <textarea id="codeInput">// Inspired by <https://www.cs.princeton.edu/courses/archive/spr09/cos333/beautiful.html> +const matchHere = (pattern, text) => { + if (pattern.length === 0) return true; + + // If pattern ends with $, match end of string + if (pattern[0] === ' + <div id="console"></div> + + <script> + function evaluateCode() { + const code = document.getElementById('codeInput').value; + const consoleDiv = document.getElementById('console'); + consoleDiv.innerHTML = ''; + + // Custom console.log function to output to the console div + const originalConsoleLog = console.log; + console.log = function(...args) { + args.forEach(arg => { + const output = document.createElement('div'); + output.textContent = typeof arg === 'object' ? JSON.stringify(arg, null, 2) : arg; + consoleDiv.appendChild(output); + }); + originalConsoleLog.apply(console, args); + }; + + try { + eval(code); + } catch (error) { + const errorOutput = document.createElement('div'); + errorOutput.textContent = error; + errorOutput.style.color = 'red'; + consoleDiv.appendChild(errorOutput); + } + + // Restore browser's console.log + console.log = originalConsoleLog; + } + + function downloadCodeAndEditor() { + const codeInput = document.getElementById('codeInput').value; + const htmlContent = document.documentElement.outerHTML.replace( + /<textarea id="codeInput"[^>]*>.*<\/textarea>/, + `<textarea id="codeInput">${codeInput}</textarea>` + ); + + const blob = new Blob([htmlContent], { type: 'text/html' }); + const url = URL.createObjectURL(blob); + const a = document.createElement('a'); + a.href = url; + a.download = 'code_editor.html'; + document.body.appendChild(a); + a.click(); + document.body.removeChild(a); + URL.revokeObjectURL(url); + } + + function shareCode() { + const code = document.getElementById('codeInput').value; + const encodedCode = btoa(encodeURIComponent(code)); + window.location.hash = encodedCode; + window.prompt("Copy the URL to share.\nBe warned! Very long URLs don't share wicked well, sometimes.", window.location.href); + } + + function clearEverything() { + if (!confirm('Are you sure you want to reset the playground?')) { + return; + } else { + window.location.hash = ''; + window.location.reload(); + } + } + + function loadCodeFromHash() { + const hash = window.location.hash.substring(1); + if (hash) { + try { + const decodedCode = decodeURIComponent(atob(hash)); + document.getElementById('codeInput').value = decodedCode; + } catch (error) { + console.error('Failed to decode the URL hash:', error); + } + } + } + + function help() { + const helpText = ` + Welcome to the JavaScript Playground! Here are some tips to get you started: + + 1. Enter your JavaScript code in the textarea. + 2. Click the "Run Code" button to execute your code. + 3. The console output will be displayed below the textarea. + 4. Click the "Clear" button to reset the playground. + 5. Click the "Download" button to save your code and editor as an HTML file. + 6. Click the "Share" button to generate a URL to share your code with others. + 7. You can also press "Cmd + Enter" to run your code. + 8. There's an empty div above the buttons with the id "playground" + 9. You can mount stuff to it using the "mount" function, for more info run "mountHelp()" + 10. You can use the "clear()" function to clear the content's of the console. + + Go nuts! Share scrappy fiddles! + `; + console.log(helpText); + } + + function clear() { + document.getElementById('console').innerHTML = ''; + } + + function mountHelp() { + console.log(` + The mount function is used to mount stuff to the playground div. + It takes a function as an argument, which in turn receives the playground div as an argument. + Before mounting, it clears the playground div. + Here's an example of how to use the mount function: + + mount(playground => { + const h1 = document.createElement('h1'); + h1.textContent = 'Hell is empty and all the devils are here.'; + playground.appendChild(h1); + }); + + This will add an h1 element to the playground div. + `); + } + + function mount(mountFunction) { + const playground = document.getElementById('playground'); + if (!playground) { + console.error("Couldn't find a div with the id 'playground'! You may need to reload the page."); + return; + } + + if (playground.innerHTML.trim() !== "") { + playground.innerHTML = ""; + } + mountFunction(playground); + } + + + document.getElementById('codeInput').addEventListener('keydown', function(event) { + if (event.metaKey && event.key === 'Enter') { + event.preventDefault(); + evaluateCode(); + } + }); + + window.onload = loadCodeFromHash; + </script> + + +</body></html> && pattern.length === 1) return text.length === 0; + + // If next char is '*', match zero or more occurrences of prev char + if (pattern[1] === '*') return matchStar(pattern[0], pattern.slice(2), text); + + // Match . or literal character + if (text.length !== 0 && (pattern[0] === '.' || pattern[0] === text[0])) { + return matchHere(pattern.slice(1), text.slice(1)); + } + + return false; +}; + +const matchStar = (prevChar, pattern, text) => { + // Try matching zero occurrences first + if (matchHere(pattern, text)) return true; + + // Then, match one or more occurrences of prevChar + while (text.length > 0 && (text[0] === prevChar || prevChar === '.')) { + text = text.slice(1); + if (matchHere(pattern, text)) return true; + } + + return false; +}; + +const match = (pattern, text) => { + // Handle ^ anchor at the beginning + if (pattern[0] === '^') { + return matchHere(pattern.slice(1), text); + } + + // Otherwise, check the entire string + for (let i = 0; i <= text.length; i++) { + if (matchHere(pattern, text.slice(i))) return true; + } + + return false; +}; + +const assertEqual = (actual, expected, testName) => + console.log(actual === expected ? `Passed: ${testName}` : `Failed: ${testName}. Expected ${expected} but got ${actual}`); + +assertEqual(match("ab*c", "ac"), true, "Star match 'ab*c' vs 'ac' (zero occurrences)"); +assertEqual(match("ab*c", "abbbc"), true, "Star match 'ab*c' vs 'abbbc' (multiple occurrences)"); +assertEqual(match("^ab.*c$", "abc"), true, "Complex match '^ab.*c + <div id="console"></div> + + <script> + function evaluateCode() { + const code = document.getElementById('codeInput').value; + const consoleDiv = document.getElementById('console'); + consoleDiv.innerHTML = ''; + + // Custom console.log function to output to the console div + const originalConsoleLog = console.log; + console.log = function(...args) { + args.forEach(arg => { + const output = document.createElement('div'); + output.textContent = typeof arg === 'object' ? JSON.stringify(arg, null, 2) : arg; + consoleDiv.appendChild(output); + }); + originalConsoleLog.apply(console, args); + }; + + try { + eval(code); + } catch (error) { + const errorOutput = document.createElement('div'); + errorOutput.textContent = error; + errorOutput.style.color = 'red'; + consoleDiv.appendChild(errorOutput); + } + + // Restore browser's console.log + console.log = originalConsoleLog; + } + + function downloadCodeAndEditor() { + const codeInput = document.getElementById('codeInput').value; + const htmlContent = document.documentElement.outerHTML.replace( + /<textarea id="codeInput"[^>]*>.*<\/textarea>/, + `<textarea id="codeInput">${codeInput}</textarea>` + ); + + const blob = new Blob([htmlContent], { type: 'text/html' }); + const url = URL.createObjectURL(blob); + const a = document.createElement('a'); + a.href = url; + a.download = 'code_editor.html'; + document.body.appendChild(a); + a.click(); + document.body.removeChild(a); + URL.revokeObjectURL(url); + } + + function shareCode() { + const code = document.getElementById('codeInput').value; + const encodedCode = btoa(encodeURIComponent(code)); + window.location.hash = encodedCode; + window.prompt("Copy the URL to share.\nBe warned! Very long URLs don't share wicked well, sometimes.", window.location.href); + } + + function clearEverything() { + if (!confirm('Are you sure you want to reset the playground?')) { + return; + } else { + window.location.hash = ''; + window.location.reload(); + } + } + + function loadCodeFromHash() { + const hash = window.location.hash.substring(1); + if (hash) { + try { + const decodedCode = decodeURIComponent(atob(hash)); + document.getElementById('codeInput').value = decodedCode; + } catch (error) { + console.error('Failed to decode the URL hash:', error); + } + } + } + + function help() { + const helpText = ` + Welcome to the JavaScript Playground! Here are some tips to get you started: + + 1. Enter your JavaScript code in the textarea. + 2. Click the "Run Code" button to execute your code. + 3. The console output will be displayed below the textarea. + 4. Click the "Clear" button to reset the playground. + 5. Click the "Download" button to save your code and editor as an HTML file. + 6. Click the "Share" button to generate a URL to share your code with others. + 7. You can also press "Cmd + Enter" to run your code. + 8. There's an empty div above the buttons with the id "playground" + 9. You can mount stuff to it using the "mount" function, for more info run "mountHelp()" + 10. You can use the "clear()" function to clear the content's of the console. + + Go nuts! Share scrappy fiddles! + `; + console.log(helpText); + } + + function clear() { + document.getElementById('console').innerHTML = ''; + } + + function mountHelp() { + console.log(` + The mount function is used to mount stuff to the playground div. + It takes a function as an argument, which in turn receives the playground div as an argument. + Before mounting, it clears the playground div. + Here's an example of how to use the mount function: + + mount(playground => { + const h1 = document.createElement('h1'); + h1.textContent = 'Hell is empty and all the devils are here.'; + playground.appendChild(h1); + }); + + This will add an h1 element to the playground div. + `); + } + + function mount(mountFunction) { + const playground = document.getElementById('playground'); + if (!playground) { + console.error("Couldn't find a div with the id 'playground'! You may need to reload the page."); + return; + } + + if (playground.innerHTML.trim() !== "") { + playground.innerHTML = ""; + } + mountFunction(playground); + } + + + document.getElementById('codeInput').addEventListener('keydown', function(event) { + if (event.metaKey && event.key === 'Enter') { + event.preventDefault(); + evaluateCode(); + } + }); + + window.onload = loadCodeFromHash; + </script> + + +</body></html> vs 'abc'"); +assertEqual(match("^ab.*c$", "abcd"), false, "Complex mismatch '^ab.*c + <div id="console"></div> + + <script> + function evaluateCode() { + const code = document.getElementById('codeInput').value; + const consoleDiv = document.getElementById('console'); + consoleDiv.innerHTML = ''; + + // Custom console.log function to output to the console div + const originalConsoleLog = console.log; + console.log = function(...args) { + args.forEach(arg => { + const output = document.createElement('div'); + output.textContent = typeof arg === 'object' ? JSON.stringify(arg, null, 2) : arg; + consoleDiv.appendChild(output); + }); + originalConsoleLog.apply(console, args); + }; + + try { + eval(code); + } catch (error) { + const errorOutput = document.createElement('div'); + errorOutput.textContent = error; + errorOutput.style.color = 'red'; + consoleDiv.appendChild(errorOutput); + } + + // Restore browser's console.log + console.log = originalConsoleLog; + } + + function downloadCodeAndEditor() { + const codeInput = document.getElementById('codeInput').value; + const htmlContent = document.documentElement.outerHTML.replace( + /<textarea id="codeInput"[^>]*>.*<\/textarea>/, + `<textarea id="codeInput">${codeInput}</textarea>` + ); + + const blob = new Blob([htmlContent], { type: 'text/html' }); + const url = URL.createObjectURL(blob); + const a = document.createElement('a'); + a.href = url; + a.download = 'code_editor.html'; + document.body.appendChild(a); + a.click(); + document.body.removeChild(a); + URL.revokeObjectURL(url); + } + + function shareCode() { + const code = document.getElementById('codeInput').value; + const encodedCode = btoa(encodeURIComponent(code)); + window.location.hash = encodedCode; + window.prompt("Copy the URL to share.\nBe warned! Very long URLs don't share wicked well, sometimes.", window.location.href); + } + + function clearEverything() { + if (!confirm('Are you sure you want to reset the playground?')) { + return; + } else { + window.location.hash = ''; + window.location.reload(); + } + } + + function loadCodeFromHash() { + const hash = window.location.hash.substring(1); + if (hash) { + try { + const decodedCode = decodeURIComponent(atob(hash)); + document.getElementById('codeInput').value = decodedCode; + } catch (error) { + console.error('Failed to decode the URL hash:', error); + } + } + } + + function help() { + const helpText = ` + Welcome to the JavaScript Playground! Here are some tips to get you started: + + 1. Enter your JavaScript code in the textarea. + 2. Click the "Run Code" button to execute your code. + 3. The console output will be displayed below the textarea. + 4. Click the "Clear" button to reset the playground. + 5. Click the "Download" button to save your code and editor as an HTML file. + 6. Click the "Share" button to generate a URL to share your code with others. + 7. You can also press "Cmd + Enter" to run your code. + 8. There's an empty div above the buttons with the id "playground" + 9. You can mount stuff to it using the "mount" function, for more info run "mountHelp()" + 10. You can use the "clear()" function to clear the content's of the console. + + Go nuts! Share scrappy fiddles! + `; + console.log(helpText); + } + + function clear() { + document.getElementById('console').innerHTML = ''; + } + + function mountHelp() { + console.log(` + The mount function is used to mount stuff to the playground div. + It takes a function as an argument, which in turn receives the playground div as an argument. + Before mounting, it clears the playground div. + Here's an example of how to use the mount function: + + mount(playground => { + const h1 = document.createElement('h1'); + h1.textContent = 'Hell is empty and all the devils are here.'; + playground.appendChild(h1); + }); + + This will add an h1 element to the playground div. + `); + } + + function mount(mountFunction) { + const playground = document.getElementById('playground'); + if (!playground) { + console.error("Couldn't find a div with the id 'playground'! You may need to reload the page."); + return; + } + + if (playground.innerHTML.trim() !== "") { + playground.innerHTML = ""; + } + mountFunction(playground); + } + + + document.getElementById('codeInput').addEventListener('keydown', function(event) { + if (event.metaKey && event.key === 'Enter') { + event.preventDefault(); + evaluateCode(); + } + }); + + window.onload = loadCodeFromHash; + </script> + + +</body></html> vs 'abcd'");</textarea> + <div id="console"></div> + + <script> + function evaluateCode() { + const code = document.getElementById('codeInput').value; + const consoleDiv = document.getElementById('console'); + consoleDiv.innerHTML = ''; + + // Custom console.log function to output to the console div + const originalConsoleLog = console.log; + console.log = function(...args) { + args.forEach(arg => { + const output = document.createElement('div'); + output.textContent = typeof arg === 'object' ? JSON.stringify(arg, null, 2) : arg; + consoleDiv.appendChild(output); + }); + originalConsoleLog.apply(console, args); + }; + + try { + eval(code); + } catch (error) { + const errorOutput = document.createElement('div'); + errorOutput.textContent = error; + errorOutput.style.color = 'red'; + consoleDiv.appendChild(errorOutput); + } + + // Restore browser's console.log + console.log = originalConsoleLog; + } + + function downloadCodeAndEditor() { + const codeInput = document.getElementById('codeInput').value; + const htmlContent = document.documentElement.outerHTML.replace( + /<textarea id="codeInput"[^>]*>.*<\/textarea>/, + `<textarea id="codeInput">${codeInput}</textarea>` + ); + + const blob = new Blob([htmlContent], { type: 'text/html' }); + const url = URL.createObjectURL(blob); + const a = document.createElement('a'); + a.href = url; + a.download = 'code_editor.html'; + document.body.appendChild(a); + a.click(); + document.body.removeChild(a); + URL.revokeObjectURL(url); + } + + function shareCode() { + const code = document.getElementById('codeInput').value; + const encodedCode = btoa(encodeURIComponent(code)); + window.location.hash = encodedCode; + window.prompt("Copy the URL to share.\nBe warned! Very long URLs don't share wicked well, sometimes.", window.location.href); + } + + function clearEverything() { + if (!confirm('Are you sure you want to reset the playground?')) { + return; + } else { + window.location.hash = ''; + window.location.reload(); + } + } + + function loadCodeFromHash() { + const hash = window.location.hash.substring(1); + if (hash) { + try { + const decodedCode = decodeURIComponent(atob(hash)); + document.getElementById('codeInput').value = decodedCode; + } catch (error) { + console.error('Failed to decode the URL hash:', error); + } + } + } + + function help() { + const helpText = ` + Welcome to the JavaScript Playground! Here are some tips to get you started: + + 1. Enter your JavaScript code in the textarea. + 2. Click the "Run Code" button to execute your code. + 3. The console output will be displayed below the textarea. + 4. Click the "Clear" button to reset the playground. + 5. Click the "Download" button to save your code and editor as an HTML file. + 6. Click the "Share" button to generate a URL to share your code with others. + 7. You can also press "Cmd + Enter" to run your code. + 8. There's an empty div above the buttons with the id "playground" + 9. You can mount stuff to it using the "mount" function, for more info run "mountHelp()" + 10. You can use the "clear()" function to clear the content's of the console. + + Go nuts! Share scrappy fiddles! + `; + console.log(helpText); + } + + function clear() { + document.getElementById('console').innerHTML = ''; + } + + function mountHelp() { + console.log(` + The mount function is used to mount stuff to the playground div. + It takes a function as an argument, which in turn receives the playground div as an argument. + Before mounting, it clears the playground div. + Here's an example of how to use the mount function: + + mount(playground => { + const h1 = document.createElement('h1'); + h1.textContent = 'Hell is empty and all the devils are here.'; + playground.appendChild(h1); + }); + + This will add an h1 element to the playground div. + `); + } + + function mount(mountFunction) { + const playground = document.getElementById('playground'); + if (!playground) { + console.error("Couldn't find a div with the id 'playground'! You may need to reload the page."); + return; + } + + if (playground.innerHTML.trim() !== "") { + playground.innerHTML = ""; + } + mountFunction(playground); + } + + + document.getElementById('codeInput').addEventListener('keydown', function(event) { + if (event.metaKey && event.key === 'Enter') { + event.preventDefault(); + evaluateCode(); + } + }); + + window.onload = loadCodeFromHash; + </script> + + +</body></html> \ No newline at end of file diff --git a/html/playground/regex.html b/html/playground/regex.html new file mode 100644 index 0000000..41f50e9 --- /dev/null +++ b/html/playground/regex.html @@ -0,0 +1,477 @@ +<html lang="en"><head> + <meta charset="UTF-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0"> + <title>JavaScript Playground</title> + <meta name="description" content="A JavaScript jungle-gym for doing experiments and sharing scrappy fiddles."> + <style> + body { + display: flex; + flex-direction: column; + align-items: center; + background-color: #ddd; + padding: 10px; + height: 100vh; + margin: 0; + } + + textarea { + width: 100%; + height: 64%; + font-family: monospace; + background-color: #FFFEEC; + border: 2px solid #000; + scrollbar-width: none; + font-size: 1rem; + margin-bottom: 10px; + padding: 10px; + box-sizing: border-box; + resize: none; + border-bottom: 12px solid teal; + -webkit-user-modify: read-write-plaintext-only; + } + + textarea::-webkit-scrollbar { + display: none; + } + + textarea::selection { + background-color: #EFECA7; + } + + textarea:focus { + outline: none; + } + + #console { + width: 100%; + height: 22%; + background-color: #000; + color: #0fc; + font-family: monospace; + font-size: 1rem; + overflow-y: auto; + padding: 10px; + box-sizing: border-box; + white-space: pre-wrap; + } + + .button-container { + width: 100%; + display: flex; + justify-content: flex-end; + margin-bottom: 10px; + } + + button { + padding: 10px 20px; + font-size: 1rem; + margin-left: 10px; + cursor: pointer; + border: none; + transition: background-color 0.3s ease; + } + + button:hover, button:focus { + outline: none; + } + + button.run { + background-color: teal; + color: #FFFFFF; + } + </style> +</head> +<body> + + <div class="playground" id="playground"> + <div class="seesaw" id="seesaw"></div> + <div class="slide" id="slide"></div> + </div> + + <div class="button-container"> + <button onclick="clearEverything()">Clear</button> + <button onclick="downloadCodeAndEditor()">Download</button> + <button onclick="shareCode()">Share</button> + <button onclick="evaluateCode()" class="run">Run Code</button> + </div> + <textarea id="codeInput">const tokenize = (pattern) => { + const tokens = []; + let i = 0; + + while (i < pattern.length) { + const char = pattern[i]; + + if (char === '.' || char === '*' || char === '(' || char === ')' || char === '|') { + tokens.push({ + type: char, + value: char + }); + } else if (char === '\\') { // Handle escaped characters + i++; + tokens.push({ + type: 'literal', + value: pattern[i] + }); + } else if (char === '[') { // Handle character classes + let charClass = ''; + i++; + while (pattern[i] !== ']' && i < pattern.length) { + charClass += pattern[i]; + i++; + } + tokens.push({ + type: 'charClass', + value: charClass + }); + } else { + tokens.push({ + type: 'literal', + value: char + }); + } + i++; + } + + return tokens; +}; + + + + +const parse = (tokens) => { + let i = 0; + + const parseSequenceExpression = () => { + const node = { + type: 'sequence', + elements: [] + }; + + while (i < tokens.length) { + const token = tokens[i]; + + if (token.type === 'literal') { + node.elements.push({ + type: 'literal', + value: token.value + }); + } else if (token.type === '*') { + const lastElement = node.elements.pop(); + node.elements.push({ + type: 'star', + element: lastElement + }); + } else if (token.type === '.') { + node.elements.push({ + type: 'dot' + }); + } else if (token.type === 'charClass') { + node.elements.push({ + type: 'charClass', + value: token.value + }); + } else if (token.type === '|') { + i++; + const right = parseSequenceExpression(); + return { + type: 'alternation', + left: node, + right + }; + } else if (token.type === '(') { + i++; + node.elements.push(parseSequenceExpression()); + } else if (token.type === ')') { + break; // End of a grouping + } + + i++; + } + + return node; + }; + + return parseSequenceExpression(); +}; + + + +const evaluateMatch = (node) => (input) => { + if (node.type === 'literal') { + return input[0] === node.value ? input.slice(1) : null; + } + if (node.type === 'dot') { + return input.length > 0 ? input.slice(1) : null; + } + if (node.type === 'star') { + let remainder = input; + while (remainder !== null) { + const next = evaluateMatch(node.element)(remainder); + if (next === null) { + break; + } + remainder = next; + } + return remainder; + } + if (node.type === 'charClass') { + return node.value.includes(input[0]) ? input.slice(1) : null; + } + if (node.type === 'alternation') { + const remainderLeft = evaluateMatch(node.left)(input); + const remainderRight = evaluateMatch(node.right)(input); + return remainderLeft !== null ? remainderLeft : remainderRight; + } + if (node.type === 'sequence') { + let remainder = input; + for (const element of node.elements) { + remainder = evaluateMatch(element)(remainder); + if (remainder === null) { + return null; + } + } + return remainder; + } +}; + + + + +const assertEqual = (expected, actual, message) => { + if (expected !== actual) { + console.error(`FAIL: ${message}`); + } else { + console.log(`PASS: ${message}`); + } +}; + + + +const runTests = () => { + const tests = [{ + pattern: "a.b*c", + input: "abbbc", + expected: true + }, + { + pattern: "a.b*c", + input: "abc", + expected: true + }, + { + pattern: "a.b*c", + input: "ac", + expected: true + }, + { + pattern: "a.b*c", + input: "abbc", + expected: true + }, + { + pattern: "a.b*c", + input: "axbc", + expected: false + }, + + // Character class tests + { + pattern: "[abc]x", + input: "bx", + expected: true + }, + { + pattern: "[abc]x", + input: "dx", + expected: false + }, + + // Grouping and alternation tests + { + pattern: "(a|b)c", + input: "ac", + expected: true + }, + { + pattern: "(a|b)c", + input: "bc", + expected: true + }, + { + pattern: "(a|b)c", + input: "cc", + expected: false + }, + + // Escaped characters tests + { + pattern: "a\\.b", + input: "a.b", + expected: true + }, + { + pattern: "a\\.b", + input: "a-b", + expected: false + }, + { + pattern: "a\\*b", + input: "a*b", + expected: true + } + ]; + + tests.forEach(({ pattern, input, expected }, index) => { + const tokens = tokenize(pattern); + const ast = parse(tokens); + const result = evaluateMatch(ast)(input) !== null; + assertEqual(expected, result, `Test ${index + 1}`); + }); +}; + +runTests();</textarea> + <div id="console"><div>PASS: Test 1</div><div>PASS: Test 2</div><div>PASS: Test 4</div><div>PASS: Test 6</div><div>PASS: Test 7</div><div>PASS: Test 8</div><div>PASS: Test 9</div><div>PASS: Test 10</div><div>PASS: Test 11</div><div>PASS: Test 12</div><div>PASS: Test 13</div></div> + + <script> + function evaluateCode() { + const code = document.getElementById('codeInput').value; + const consoleDiv = document.getElementById('console'); + consoleDiv.innerHTML = ''; + + // Custom console.log function to output to the console div + const originalConsoleLog = console.log; + console.log = function(...args) { + args.forEach(arg => { + const output = document.createElement('div'); + output.textContent = typeof arg === 'object' ? JSON.stringify(arg, null, 2) : arg; + consoleDiv.appendChild(output); + }); + originalConsoleLog.apply(console, args); + }; + + try { + eval(code); + } catch (error) { + const errorOutput = document.createElement('div'); + errorOutput.textContent = error; + errorOutput.style.color = 'red'; + consoleDiv.appendChild(errorOutput); + } + + // Restore browser's console.log + console.log = originalConsoleLog; + } + + function downloadCodeAndEditor() { + const codeInput = document.getElementById('codeInput').value; + const htmlContent = document.documentElement.outerHTML.replace( + /<textarea id="codeInput"[^>]*>.*<\/textarea>/, + `<textarea id="codeInput">${codeInput}</textarea>` + ); + + const blob = new Blob([htmlContent], { type: 'text/html' }); + const url = URL.createObjectURL(blob); + const a = document.createElement('a'); + a.href = url; + a.download = 'code_editor.html'; + document.body.appendChild(a); + a.click(); + document.body.removeChild(a); + URL.revokeObjectURL(url); + } + + function shareCode() { + const code = document.getElementById('codeInput').value; + const encodedCode = btoa(encodeURIComponent(code)); + window.location.hash = encodedCode; + window.prompt("Copy the URL to share.\nBe warned! Very long URLs don't share wicked well, sometimes.", window.location.href); + } + + function clearEverything() { + if (!confirm('Are you sure you want to reset the playground?')) { + return; + } else { + window.location.hash = ''; + window.location.reload(); + } + } + + function loadCodeFromHash() { + const hash = window.location.hash.substring(1); + if (hash) { + try { + const decodedCode = decodeURIComponent(atob(hash)); + document.getElementById('codeInput').value = decodedCode; + } catch (error) { + console.error('Failed to decode the URL hash:', error); + } + } + } + + function help() { + const helpText = ` + Welcome to the JavaScript Playground! Here are some tips to get you started: + + 1. Enter your JavaScript code in the textarea. + 2. Click the "Run Code" button to execute your code. + 3. The console output will be displayed below the textarea. + 4. Click the "Clear" button to reset the playground. + 5. Click the "Download" button to save your code and editor as an HTML file. + 6. Click the "Share" button to generate a URL to share your code with others. + 7. You can also press "Cmd + Enter" to run your code. + 8. There's an empty div above the buttons with the id "playground" + 9. You can mount stuff to it using the "mount" function, for more info run "mountHelp()" + 10. You can use the "clear()" function to clear the content's of the console. + + Go nuts! Share scrappy fiddles! + `; + console.log(helpText); + } + + function clear() { + document.getElementById('console').innerHTML = ''; + } + + function mountHelp() { + console.log(` + The mount function is used to mount stuff to the playground div. + It takes a function as an argument, which in turn receives the playground div as an argument. + Before mounting, it clears the playground div. + Here's an example of how to use the mount function: + + mount(playground => { + const h1 = document.createElement('h1'); + h1.textContent = 'Hell is empty and all the devils are here.'; + playground.appendChild(h1); + }); + + This will add an h1 element to the playground div. + `); + } + + function mount(mountFunction) { + const playground = document.getElementById('playground'); + if (!playground) { + console.error("Couldn't find a div with the id 'playground'! You may need to reload the page."); + return; + } + + if (playground.innerHTML.trim() !== "") { + playground.innerHTML = ""; + } + mountFunction(playground); + } + + + document.getElementById('codeInput').addEventListener('keydown', function(event) { + if (event.metaKey && event.key === 'Enter') { + event.preventDefault(); + evaluateCode(); + } + }); + + window.onload = loadCodeFromHash; + </script> + + +</body></html> \ No newline at end of file diff --git a/html/playground/scheme.html b/html/playground/scheme.html index dc6fb55..b8ecd6f 100644 --- a/html/playground/scheme.html +++ b/html/playground/scheme.html @@ -83,7 +83,10 @@ </head> <body> - <div class="playground" id="playground"><div style="display: flex; flex-direction: column; width: 100%;"><textarea placeholder="Scheme here..." style="width: 100%; height: 100px; margin-bottom: 10px; font-family: monospace;"></textarea><button>Evaluate</button><pre style="width: 100%; height: 200px; overflow-y: auto; background-color: rgb(240, 240, 240); padding: 10px; font-family: monospace;"></pre></div></div> + <div class="playground" id="playground"> + <div class="seesaw" id="seesaw"></div> + <div class="slide" id="slide"></div> + </div> <div class="button-container"> <button onclick="clearEverything()">Clear</button> @@ -382,122 +385,8 @@ function mountRepl(playground) { } -mount(mountRepl); - - - -// Testing 'define' and arithmetic operations -console.log(evalScheme("(define x 10)")); // Should define 'x' as 10 -console.log(evalScheme("(+ x 5)")); // Should return 15 -console.log(evalScheme("(- x 3)")); // Should return 7 -console.log(evalScheme("(* x 2)")); // Should return 20 -console.log(evalScheme("(/ x 2)")); // Should return 5 - -// Testing 'eq?' for equality -console.log(evalScheme("(eq? 1 1)")); // Should return true -console.log(evalScheme("(eq? 1 2)")); // Should return false - -// Testing 'car', 'cdr', 'cons', 'null?' -console.log(evalScheme("(car (quote (1 2 3)))")); // Should return 1 -console.log(evalScheme("(cdr (quote (1 2 3)))")); // Should return (2 3) -console.log(evalScheme("(cons 1 (quote (2 3)))")); // Should return (1 2 3) -console.log(evalScheme("(null? (quote ()))")); // Should return true -console.log(evalScheme("(null? (quote (1 2 3)))")); // Should return false - -// Testing 'zero?' for checking zero -console.log(evalScheme("(zero? 0)")); // Should return true -console.log(evalScheme("(zero? 1)")); // Should return false - -// Testing 'atom?' for checking if an element is an atom -console.log(evalScheme("(atom? 1)")); // Should return true -console.log(evalScheme("(atom? (quote (1 2 3)))")); // Should return false - -// Testing 'number?' for checking if an element is a number -console.log(evalScheme("(number? 42)")); // Should return true -console.log(evalScheme("(number? (quote hello))")); // Should return false - -// Testing 'add1' and 'sub1' -console.log(evalScheme("(add1 5)")); // Should return 6 -console.log(evalScheme("(sub1 5)")); // Should return 4 - -// Testing 'quote' for returning unevaluated expressions -console.log(evalScheme("(quote (1 2 3))")); // Should return (1 2 3) - -// Testing 'and' and 'or' -console.log(evalScheme("(and true true)")); // Should return true -console.log(evalScheme("(and true false)")); // Should return false -console.log(evalScheme("(or false false)")); // Should return false -console.log(evalScheme("(or true false)")); // Should return true - -// Testing 'lambda' with a function definition -console.log(evalScheme("(define add1 (lambda (x) (+ x 1)))")); // Should define add1 function -console.log(evalScheme("(add1 10)")); // Should return 11 - -// Testing 'if' for conditional expressions -console.log(evalScheme("(if (eq? 1 1) (quote yes) (quote no))")); // Should return 'yes -console.log(evalScheme("(if (eq? 1 2) (quote yes) (quote no))")); // Should return 'no - -// Testing 'cond' for multiple conditions -console.log(evalScheme("(cond ((eq? 1 2) (quote no)) ((eq? 2 2) (quote yes)))")); // Should return 'yes -console.log(evalScheme("(cond ((eq? 1 2) (quote no)) ((eq? 3 2) (quote nope)))")); // Should return null (no matching condition) - -// Testing 'letrec' for recursive bindings -console.log(evalScheme("(letrec ((factorial (lambda (n) (if (zero? n) 1 (* n (factorial (sub1 n))))))) (factorial 5))")); -// Should return 120 (5!)</textarea> - <div id="console"><div></div><div>15</div><div>7</div><div>20</div><div>5</div><div>true</div><div>false</div><div>{ - "type": "NumberLiteral", - "value": 1 -}</div><div>{ - "type": "List", - "value": [ - { - "type": "NumberLiteral", - "value": 2 - }, - { - "type": "NumberLiteral", - "value": 3 - } - ] -}</div><div>{ - "type": "List", - "value": [ - 1, - { - "type": "NumberLiteral", - "value": 2 - }, - { - "type": "NumberLiteral", - "value": 3 - } - ] -}</div><div>true</div><div>false</div><div>true</div><div>false</div><div>true</div><div>false</div><div>true</div><div>false</div><div>6</div><div>4</div><div>{ - "type": "List", - "value": [ - { - "type": "NumberLiteral", - "value": 1 - }, - { - "type": "NumberLiteral", - "value": 2 - }, - { - "type": "NumberLiteral", - "value": 3 - } - ] -}</div><div>true</div><div>false</div><div>false</div><div>true</div><div></div><div>11</div><div>{ - "type": "Symbol", - "value": "yes" -}</div><div>{ - "type": "Symbol", - "value": "no" -}</div><div>{ - "type": "Symbol", - "value": "yes" -}</div><div>null</div><div>120</div></div> +mount(mountRepl);</textarea> + <div id="console"></div> <script> function evaluateCode() { |