Language reference

Hollow ships two languages. HollowScript is a statically typed, general-purpose programming language, used as the scripting layer inside Cascade. HEL (Hollow Expression Language) is a concise filter query syntax shared by every search box, saved view, smart list, and routing rule across the Hollow suite.

• HollowScript: a full programming language with static types, functions, records, modules, closures, and a capability model that makes every external interaction explicit.
• HEL: the filter syntax behind every search box and routing rule.