Add stopParsing flag to arg

src/args.ts

@@ -8,6 +8,7 @@ export interface IArg<T = string> {
   parse?: ParseFn<T>
   default?: T | (() => T)
   options?: string[]
+  stopParsing?: boolean
 }
 
 export interface ArgBase<T> {
@@ -18,6 +19,7 @@ export interface ArgBase<T> {
   default?: T | (() => T)
   input?: string
   options?: string[]
+  stopParsing?: boolean
 }
 
 export type RequiredArg<T> = ArgBase<T> & {

src/parse.ts

@@ -140,6 +140,10 @@ export class Parser<T extends ParserInput, TFlags extends OutputFlags<T['flags']
       const arg = this.input.args[this._argTokens.length]
       if (arg) arg.input = input
       this.raw.push({type: 'arg', input})
+      if (arg && arg.stopParsing) {
+        parsingFlags = false
+        continue
+      }
     }
     const argv = this._argv()
     const args = this._args(argv)