GeoStyler Translates CQL Filter and Geostyler Style Filters
This is almost a 1on1 transformation from the OpenLayers v2 CQL Parser to TypeScript. Except that it writes Filters in the GeoStyler Style format instead of ol styles.
But you can easily transform the GeoStyler Styles to OL3 with the GeoStyler OpenLayers Parser. So its just two steps from CQL Filter to OL3 Styles.