CLeanup entry file

This commit is contained in:
Timothy Warren 2023-11-15 08:32:25 -05:00
parent d5ce04fe8b
commit a4ef630c7b
3 changed files with 74 additions and 71 deletions

View File

@ -12,9 +12,9 @@ export enum KeyCommand {
ArrowDown = ANSI_PREFIX + 'B', ArrowDown = ANSI_PREFIX + 'B',
ArrowRight = ANSI_PREFIX + 'C', ArrowRight = ANSI_PREFIX + 'C',
ArrowLeft = ANSI_PREFIX + 'D', ArrowLeft = ANSI_PREFIX + 'D',
Delete = ANSI_PREFIX + '3~',
PageUp = ANSI_PREFIX + '5~', PageUp = ANSI_PREFIX + '5~',
PageDown = ANSI_PREFIX + '6~', PageDown = ANSI_PREFIX + '6~',
Delete = ANSI_PREFIX + '3~',
// These keys have several possible escape sequences // These keys have several possible escape sequences
Home = 'LineHome', Home = 'LineHome',

72
src/common/main.ts Normal file
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@ -0,0 +1,72 @@
import { KeyCommand } from './ansi.ts';
import { getRuntime } from './runtime.ts';
import { getTermios } from './termios.ts';
import { Editor } from './editor.ts';
const decoder = new TextDecoder();
function readKey(raw: Uint8Array): string {
const parsed = decoder.decode(raw);
// Return the input if it's unambiguous
if (parsed in KeyCommand) {
return parsed;
}
// Some keycodes have multiple potential inputs
switch (parsed) {
case '\x1bOH':
case '\x1b[7~':
case '\x1b[1~':
case '\x1b[H':
return KeyCommand.Home;
case '\x1bOF':
case '\x1b[8~':
case '\x1b[4~':
case '\x1b[F':
return KeyCommand.End;
default:
return parsed;
}
}
export async function main() {
const runTime = await getRuntime();
const { term, onExit } = runTime;
// Setup raw mode, and tear down on error or normal exit
const t = await getTermios();
t.enableRawMode();
onExit(() => {
t.disableRawMode();
});
const terminalSize = await term.getTerminalSize();
// Create the editor itself
const editor = new Editor(terminalSize);
if (term.argv.length > 0) {
const filename = term.argv[0];
if (filename.trim() !== '') {
await editor.open(filename);
}
}
await editor.refreshScreen();
// The main event loop
for await (const chunk of term.inputLoop()) {
// Process input
const char = readKey(chunk);
const shouldLoop = editor.processKeyPress(char);
if (!shouldLoop) {
return 0;
}
// Render output
await editor.refreshScreen();
}
return -1;
}

View File

@ -1,76 +1,7 @@
/** /**
* The starting point for running scroll * The starting point for running scroll
*/ */
import { Editor, getRuntime, getTermios } from './common/mod.ts'; import { main } from './common/main.ts';
import { KeyCommand } from './common/ansi.ts';
const decoder = new TextDecoder();
function readKey(raw: Uint8Array): string {
const parsed = decoder.decode(raw);
// Return the input if it's unambiguous
if (parsed in KeyCommand) {
return parsed;
}
// Some keycodes have multiple potential inputs
switch (parsed) {
case '\x1bOH':
case '\x1b[7~':
case '\x1b[1~':
case '\x1b[H':
return KeyCommand.Home;
case '\x1bOF':
case '\x1b[8~':
case '\x1b[4~':
case '\x1b[F':
return KeyCommand.End;
default:
return parsed;
}
}
export async function main() {
const runTime = await getRuntime();
const { term, onExit } = runTime;
// Setup raw mode, and tear down on error or normal exit
const t = await getTermios();
t.enableRawMode();
onExit(() => {
t.disableRawMode();
});
const terminalSize = await term.getTerminalSize();
// Create the editor itself
const editor = new Editor(terminalSize);
if (term.argv.length > 0) {
const filename = term.argv[0];
if (filename.trim() !== '') {
await editor.open(filename);
}
}
await editor.refreshScreen();
// The main event loop
for await (const chunk of term.inputLoop()) {
// Process input
const char = readKey(chunk);
const shouldLoop = editor.processKeyPress(char);
if (!shouldLoop) {
return 0;
}
// Render output
await editor.refreshScreen();
}
return -1;
}
/** /**
* Start the event loop * Start the event loop