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sync: wip advanced command parser

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binekrasik
2026-05-18 19:22:34 +02:00
parent d8ebbbe9e1
commit 22d00aa0b3
4 changed files with 4 additions and 317 deletions
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2
src/app.ts
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@@ -1,6 +1,6 @@
import { Alert } from './gui/Alert'
import { CreateKeyboardListeners } from './input/keyboard'
import { Wush } from './shell/Wush'
import { Wush } from './shell/wush/Wush'
import { Terminal } from './terminal/Terminal'
import { EventBroadcaster } from './utils/EventBroadcaster'

11
src/program/Loadprg.ts
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@@ -11,18 +11,11 @@ export class Loadprg extends Program {
this.shell = shell
}
async Exec(_: SimpleStream<string>, stdout: SimpleStream<string>, __: Item, args: string[]): Promise<number> {
async Exec(_: SimpleStream<string>, stdout: SimpleStream<string>, workdir: Item, args: string[]): Promise<number> {
const javascript = args.slice(2).join(' ')
try {
const exec: Function = eval(javascript)
const program = class extends Program {
async Exec(stdin: SimpleStream<string>, stdout: SimpleStream<string>, workdir: Item, args: string[]): Promise<number> {
exec(stdin, stdout, workdir, args)
return 0
}
}
const program = eval(javascript)
this.shell.LoadProgram(new program(), args[1])
} catch (e) {

2
src/program/Lsprg.ts
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@@ -1,5 +1,5 @@
import type { Item } from '../fs/Item'
import type { Wush } from '../shell/Wush'
import type { Wush } from '../shell/wush/Wush'
import type { SimpleStream } from '../utils/SimpleStream'
import { Program } from './Program'

306
src/shell/Wush.ts
View File

@@ -1,306 +0,0 @@
// Web-Uno Shell
// the best name I could come up with lol
import { Clear } from '../program/Clear'
import { Eval } from '../program/Eval'
import { Loadprg } from '../program/Loadprg'
import { Lsprg } from '../program/Lsprg'
import { Info } from '../program/Info'
import { Program } from '../program/Program'
import { Terminal } from '../terminal/Terminal'
import { EventBroadcaster } from '../utils/EventBroadcaster'
import { SimpleStream } from '../utils/SimpleStream'
import { Shell } from './Shell'
import { Ls } from '../program/Ls'
import { Item } from '../fs/Item'
import { Touch } from '../program/Touch'
import { Sl } from '../program/Sl'
import { Rm } from '../program/Rm'
import { Rl } from '../program/Rl'
import { ResetIndexedDb } from '../program/ResetIndexedDb'
import { Cat } from '../program/Cat'
import { Echo } from '../program/Echo'
import { Mkdir } from '../program/Mkdir'
import { Pwd } from '../program/Pwd'
import { Cd } from '../program/Cd'
export class Wush extends Shell {
public readonly Version = "0.1.0"
public readonly Name = "wush"
// buffer
private buffer: string[] = []
private bufferPos: number = 0
private history: string[] = []
private historyPos: number = 0
// exec stuff
/**
* -1 if the exec is currently running and anything else when it's not
*/
private execExitCode: number = 0
// todo: workers
// private workersAllowed: boolean = false
// streams
readonly stdin: SimpleStream<string>
readonly stdout: SimpleStream<string>
private programs: { [name: string]: Program } = {}
private workingDirectory: Item = null as unknown as Item // workdir is initialized in Init so this should be safe
constructor(broadcaster: EventBroadcaster, terminal: Terminal) {
super(broadcaster, terminal)
// create streams
this.stdin = new SimpleStream<string>()
this.stdout = new SimpleStream<string>()
}
async Init() {
this.broadcaster.on('keydown', (key: string, isCharacter: boolean) =>
this.HandleKeyInput(key, isCharacter),
)
// load workdir
this.workingDirectory = await Item.Root()
// load core programs
this.programs['clear'] = new Clear()
this.programs['eval'] = new Eval()
this.programs['loadprg'] = new Loadprg(this)
this.programs['lsprg'] = new Lsprg(this)
this.programs['info'] = new Info()
this.programs['ls'] = new Ls()
this.programs['touch'] = new Touch()
this.programs['sl'] = new Sl()
this.programs['rm'] = new Rm()
this.programs['rl'] = new Rl()
this.programs['rsindb'] = new ResetIndexedDb()
this.programs['cat'] = new Cat()
this.programs['echo'] = new Echo()
this.programs['mkdir'] = new Mkdir()
this.programs['pwd'] = new Pwd()
this.programs['cd'] = new Cd(this)
this.stdout.on(data => this.WriteEscapedString(data))
this.Prompt()
}
GetPrograms(): { [name: string]: Program } {
return this.programs
}
LoadProgram(program: Program, name: string) {
this.programs[name] = program
}
UnloadProgram(name: string) {
delete this.programs[name]
}
ExecuteProgram(name: string, args: string[]) {
this.programs[name].Exec(this.stdin, this.stdout, this.workingDirectory, args)
.then(code => {
this.execExitCode = code != -1 ? code : -2
})
.catch((e) => {
this.WriteEscapedString(`wush: command ${name} exited with the following exception\n`)
this.WriteEscapedString(` | ${String(e)}\n`)
})
.finally(() => {
// check if the exec actually exited with an exit code
// and if not, set it to -2 to indicate that it didn't exit with a valid code
if (this.execExitCode === -1)
this.execExitCode = -2
// this.terminal.Write(`The program exited with exit code ${this.execExitCode}.`)
this.Prompt()
})
}
Prompt() {
this.terminal.Write(`boykisser in ${this.workingDirectory.GetPath()} -> `)
}
/**
* Changes the working directory
* @param directory the directory to enter into
* @throws an error if the directory cannot be opened
*/
async SetWorkingDirectory(directory: Item) {
if (!(await directory.Exists()) || !directory.IsDirectory())
throw new Error(`Directory ${directory.GetPath()} doesn't exist`)
this.workingDirectory = directory
}
WriteStdin(data: string) {
this.stdin.emit(data)
}
WriteEscapedString(data: string) {
let buf = data.split('')
buf.forEach((char) => {
if (!this.ProcessSimpleControlCode(char))
this.terminal.Write(char)
})
}
PushToBuffer(text: string) {
text.split('').forEach(char => {
this.buffer.splice(this.bufferPos, 0, char)
this.bufferPos++
})
// console.log(this.buffer)
}
RemoveCharFromBuffer(amount: number, index: number) {
this.buffer.splice(index - amount, amount)
this.bufferPos -= amount
// console.log(this.buffer)
}
MoveBufferPos(index: number, absolute: boolean = false) {
this.bufferPos = Math.max(absolute ? index : this.bufferPos + index, 0)
}
FlushBuffer() {
this.buffer = []
this.bufferPos = 0
}
ExecuteBuffer() {
const args = this.buffer.join('').split(' ')
this.FlushBuffer()
console.log(`Executing ${args[0]} with args '${args}'`)
this.execExitCode = -1
if (this.programs[args[0]] instanceof Program) {
this.ExecuteProgram(args[0], args)
} else {
this.execExitCode = 0
// don't print anything if there are no arguments
if (args[0].length !== 0) {
this.terminal.Write(`wush: unknown command: ${args[0]}.`)
this.terminal.MoveCursor(0, 1, { x: true, y: false })
}
this.Prompt()
}
}
ProcessSimpleControlCode(code: string): boolean {
switch (code) {
case '\f':
this.terminal.NewPage()
return true
case '\n':
this.terminal.MoveCursor(0, 1, { x: true, y: false })
return true
default:
return false
}
}
// todo: actual processing
ProcessAdvancedControlCode(complex: string): boolean {
if (!complex.match(/\\(.*;)/gm))
return false
return true
// const code = matches[]
}
HandleKeyInput(key: string, isCharacter: boolean) {
if (this.execExitCode === -1) console.log('program running')
if (!isCharacter) {
switch (key) {
case 'ArrowLeft':
if (this.bufferPos > 0) {
this.terminal.MoveCursor(-1, 0)
this.MoveBufferPos(-1)
}
break
case 'ArrowRight':
if (this.bufferPos < this.buffer.length) {
this.terminal.MoveCursor(1, 0)
this.MoveBufferPos(1)
}
break
case 'ArrowUp':
if (this.historyPos < this.history.length) {
if (this.historyPos === 0)
this.history.splice(0, 0, this.buffer.join(''))
this.historyPos++
console.log(this.historyPos)
console.log(this.history[this.historyPos])
}
break
case 'ArrowDown':
if (this.historyPos > 0) {
this.historyPos--
if (this.historyPos === 0)
this.history.splice(0, 1)
console.log(this.historyPos)
console.log(this.history[this.historyPos])
}
break
case 'Backspace':
// don't erase anything if there's nothing left in the buffer
if (this.bufferPos === 0)
break
this.terminal.RemoveCell()
this.RemoveCharFromBuffer(1, this.bufferPos)
// this.buffer.splice(this.bufferPos, 1)
this.terminal.MoveCursor(-1, 0)
break
case 'Delete':
if (this.bufferPos >= this.buffer.length || this.buffer.length <= 0)
break
this.bufferPos++
this.terminal.MoveCursor(1, 0)
this.terminal.RemoveCell()
this.RemoveCharFromBuffer(1, this.bufferPos)
this.terminal.MoveCursor(-1, 0)
break
case 'Enter':
// send the buffer to stdin if an exec is running
if (this.execExitCode === -1) {
this.WriteStdin(`${this.buffer.join('')}\n`)
this.FlushBuffer()
} else {
// "execute" the buffer
this.terminal.MoveCursor(0, 1, { x: true, y: false })
this.history.splice(0, 0, this.buffer.join(''))
this.ExecuteBuffer()
}
break
case 'F5':
location.reload()
break
}
} else {
this.historyPos = 0
// push the character into the buffer
this.terminal.InsertCell(key)
this.PushToBuffer(key)
this.terminal.MoveCursor(1, 0)
}
}
}