Function registerTerminalCompletionProvider

registerTerminalCompletionProvider<T extends TerminalCompletionItem>(
provider: TerminalCompletionProvider<T>,
...triggerCharacters: string[],
): Disposable
Register a completion provider for terminals.
Type Parameters
- T extends TerminalCompletionItem
Parameters
- provider: TerminalCompletionProvider<T>
  The completion provider.
- ...triggerCharacters: string[]
  Optional characters that trigger completion. When any of these characters is typed, the completion provider will be invoked. For example, passing '-' would cause the provider to be invoked whenever the user types a dash character.
Returns Disposable
A Disposable that unregisters this provider when being disposed.
Example: Register a provider for an extension
```
window.registerTerminalCompletionProvider({
 provideTerminalCompletions(terminal, context) {
     return new TerminalCompletionList([
         { label: '--version', replacementRange: [Math.max(0, context.cursorPosition - 2), context.cursorPosition] }
     ]);
 }
});
```
Example: Register a provider with trigger characters
```
window.registerTerminalCompletionProvider({
 provideTerminalCompletions(terminal, context) {
     return new TerminalCompletionList([
         { label: '--help', replacementRange: [Math.max(0, context.cursorPosition - 2), context.cursorPosition] }
     ]);
 }
}, '-');
```
- Defined in packages/plugin/src/theia.proposed.terminalCompletionProvider.d.ts:300