wget can write to file

react/resume/package.json

@@ -20,6 +20,7 @@
   },
   "dependencies": {
     "@parcel/fs": "^2.8.3",
+    "copy-to-clipboard": "^3.3.3",
     "memfs": "^3.4.13",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",

react/resume/src/emulator/commands/cat.js

@@ -19,6 +19,10 @@ module.exports = (argv, terminal) => {
     let files = argv.filter(x => { return !x.startsWith('-') });
     files.shift();
     files.forEach(file => {
+        if (!fs.existsSync(file)) {
+            terminal.writeln(`${argv[0]}: ${file}: no such file or directory`);
+            return;
+        }
         const lines = fs.readFileSync(file).toString().split('\n');
         
         if (numbers) {

react/resume/src/emulator/commands/wget.js

@@ -26,8 +26,7 @@ Usage: ${argv[0]} [URL] [-O out.file] [-V] [-Q] [-s]
             terminal.writeln(`${argv[0]}: missing output file`);
             return;
         }
-        filepath = argv[argv.indexOf('-O') + 1]
-        return;
+        filepath = argv[argv.indexOf('-O') + 1];
     }
 
     function progress(p) {
@@ -35,11 +34,15 @@ Usage: ${argv[0]} [URL] [-O out.file] [-V] [-Q] [-s]
         
         if (total == 0)
             total = '?'
-        terminal.write(`\rDownloading... ${p.loaded}/${total}`);
+        // terminal.write(`\rDownloading... ${p.loaded}/${total}`);
     }
 
     function write(file) {
-
+        if (filepath == '-') {
+            terminal.write(file);
+        } else {
+            fs.writeFileSync(filepath, file);
+        }
     }
 
     let file;
@@ -50,8 +53,7 @@ Usage: ${argv[0]} [URL] [-O out.file] [-V] [-Q] [-s]
     req.onprogress = progress;
     req.onload = (e) => {
         if (e.type == 'load') {
-            let enc = new TextDecoder("utf-8");
-            terminal.write(enc.decode(req.response));
+            write(e.response);
         }
     };
     req.send();

react/resume/src/emulator/index.js

@@ -3,7 +3,9 @@ module.exports = (dom) => {
 
     terminal.writeln('Welcome to my online resume!')
     terminal.writeln('Type \033[1;32mhelp\033[0m for list of commands')
+    terminal.writeln('Use \033[1;33mAlt+C/V\033[0m to copy or paste');
     terminal.writeln('');
 
     require('./zsh')(terminal, dom);
+    require('./pastebuffer')(terminal, dom);
 }

react/resume/src/emulator/pastebuffer.js

@@ -0,0 +1,37 @@
+import { Terminal } from "xterm"
+import copy from 'copy-to-clipboard';
+
+/** @type { Terminal } */
+let terminal;
+const zsh = require('./zsh');
+
+/**
+ * 
+ * @param {{ key: string, domEvent: KeyboardEvent }} e 
+ */
+async function keyHandler(e) {
+    const dom = e.domEvent;
+
+    if (!dom.altKey)
+        return;
+    
+    if (dom.key.length != 1)
+        return;
+
+    switch (dom.key.toLowerCase()) {
+        case 'c':
+            if (!terminal.hasSelection()) break;
+            
+            copy(terminal.getSelection())
+            break;
+        case 'v':
+            zsh.pr_char(prompt("Paste your text:"), {key: 'a'})
+            
+    }
+}
+
+module.exports = (t, d) => {
+    terminal = t;
+    terminal.onKey(keyHandler);
+    
+}

react/resume/src/emulator/zsh.js

@@ -24,7 +24,14 @@ function text_prompt() {
     return prompt.replace(/[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-ORZcf-nqry=><]/g, '');
 }
 
-function pr_char(char) {
+/**
+ * 
+ * @param { string } char 
+ * @param { KeyboardEvent } dom 
+ */
+function pr_char(char, dom) {
+    if (dom.key.length != 1) return;
+
     cmd += char;
     terminal.write(char);
 }
@@ -47,7 +54,7 @@ function exec_file(f) {
     return;
 }
 
-function exec_cmd() {
+async function exec_cmd() {
     let c = cmd;
     const command = c.split(' ')[0];
     reset_cmd(c);
@@ -68,8 +75,13 @@ function exec_cmd() {
     }
 
     if (cmds[command] != undefined) {
-        cmds[command](c.split(' '), terminal);
-        if (terminal.buffer.active.cursorX != 0) {
+        const startY = terminal.buffer.normal.cursorY
+
+        await cmds[command](c.split(' '), terminal);
+
+        await (new Promise(resolve => setTimeout(resolve, 10)));
+
+        if (terminal.buffer.active.cursorX != 0 && startY != terminal.buffer.active.cursorY) {
             terminal.write('\033[30;47m%\033[0m\n');
         }
         print_prompt();
@@ -94,20 +106,41 @@ function reset_cmd() {
     terminal.writeln('');
 }
 
-/** @param { KeyboardEvent } dom */
-function control_char(id, dom) {
+function cbackspace() {
+    let exploded = cmd.split(' ');
+    if (exploded.length >= 1) {
+        reprint_prompt();
+        cmd = '';
+        return;
+    }
+    exploded.pop();
     
-    const backspace = () => {
+    cmd = exploded.join(' ') + ' ';
+    reprint_prompt();
+    terminal.write(cmd);
+    return;
+
+}
+
+function backspace(isCtrl) {
     if (terminal.buffer.active.cursorX <= text_prompt().length) return;
+
+    if (isCtrl) {
+        return cbackspace();
+    }
+
     terminal.write('\b \b');
     cmd = cmd.substring(0, cmd.length - 1);
 }
 
+/** @param { KeyboardEvent } dom */
+function control_char(id, dom) {
+    
     switch (id) {
 
         // backspace
         case 8:
-            backspace();
+            backspace(dom.ctrlKey);
             break;
 
         // enter
@@ -131,12 +164,15 @@ function control_char(id, dom) {
                 break;
             }
 
-        case 37:
-            backspace();
-            break;
-
+        case 86:
+            if (dom.altKey) break;
 
         default:
+            if (dom.ctrlKey && (dom.key.length == 1)) {
+                terminal.write('^' + dom.key.toUpperCase());
+                break;
+            }
+
             terminal.write('<');
             if (dom.ctrlKey)    terminal.write('C');
             if (dom.altKey)     terminal.write('A');
@@ -150,16 +186,20 @@ function key(e) {
     /** @type {KeyboardEvent} */
     const dom = e.domEvent;
     if (dom.key.length == 1 && !(dom.ctrlKey || dom.altKey)) {
-        pr_char(e.domEvent.key);
+        pr_char(e.domEvent.key, dom);
     } else {
         control_char(e.domEvent.keyCode, dom)
     }
 }
 
-module.exports = (t, d) => {
+function register(t, d) {
     terminal = t;
     dom = d;
 
     terminal.onKey(key);
     terminal.write(prompt);
 }
+
+register.pr_char = pr_char;
+
+module.exports = register;