# io.github.libtmux.query.LegacyFilters.LegacyFilters.FieldCatalog.parse

- **Module:** io.github.libtmux.query.LegacyFilters.LegacyFilters.FieldCatalog
- **Package:** io.github.libtmux:libtmux
- **Language:** Java
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-java/blob/c3517519ee799428a809ce6deb1708c8be289cd1/libtmux/src/main/java/io/github/libtmux/query/LegacyFilters.java#L126
- **Page:** https://libtmux.org/reference/java/io-github-libtmux-query-legacyfilters-legacyfilters-fieldcatalog-parse/

```
io.github.libtmux.query.LegacyFilters.LegacyFilters.FieldCatalog.parse(filters: Map<String, String>) -> FilterExpr<T>
```

Parses {@code field__operator} keys into a conjunction, in the map's iteration order.

## Raises

- `IllegalArgumentException` — on an unknown field, an unknown operator, or an operator the field's type does not support