# QuerySyntaxParser **`class QuerySyntaxParser(config)`** Bases: [`BatchedStep`](../technical/libnlp/steps/standard.md#squirro.lib.nlp.steps.batched_step.BatchedStep) Parse query to separate User-Query-Terms from filter tokens. Parameters - `step` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)`, ``"app"`) – app - `type` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)`, ``"query_processing"`) – query_processing - `name` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)`, ``"syntax_parser"`) – syntax_parser - `input_field` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)`,``"query"`) – query - `output_user_terms` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)`, ``"user_terms"`) – user terms as list - `output_user_terms_str` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)`, ``"user_terms_str"`) – user terms as str - `output_facet_filters` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)`, ``"facet_filters"`) – facet filters as list - `output_query_length` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)`, ``"query_length"`) – query length as integer - `path` ([`str`](https://docs.python.org/3.11/library/stdtypes.html#str)`, ``"."`) – schema expects path where step file is located. not used actually Methods SummaryMethods Documentation **`parse_query(query)`** Parse query into: - enrichable tokens: natural language style user terms - non-enrichable tokens: query-syntax rules like facet filters, comparisons etc. Parameters `query` – Searchbar query text (contains possible squirro-query-syntax logic) Return type `ParsedQuery` Returns parsed query **`process_doc(doc)`** Process a document Parameters `doc` ([`Document`](../technical/libnlp/base.md#squirro.lib.nlp.document.Document)) – Document Returns Processed document Return type [Document](../technical/libnlp/base.md#squirro.lib.nlp.document.Document)