Trace the parser operation

# Parle\RParser::trace

(PECL parle >= 0.7.0)

Parle\RParser::trace — Trace the parser operation

### Beschreibung

public function Parle\RParser::trace(): string

Retrieve the current parser operation description. This can be especially useful to study the parser and to optimize the grammar.

### Parameter-Liste

Diese Funktion besitzt keine Parameter.

### Rückgabewerte

Returns a String with the trace information.

`↑` and `↓` to navigate • `Enter` to select • `Esc` to close • `/` to open