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Weft

Reference

Everything Weft, precisely

The template language from its lexical rules to its last standard function, and every public item of the Rust crates.

The parts of the reference

The template language

Syntax, expressions, state, data and effects, pages and routing: the whole of .weft.

The Rust API

Every public crate, module, type, function and macro, with its documentation.

Components

Every built-in component, live, with its props and events.

The language, chapter by chapter

  1. OverviewWhere templates live, and what one is made of.
  2. Lexical structureNames, strings, numbers, comments, keywords and the line rule.
  3. GrammarThe whole syntax, in EBNF.
  4. NodesElements, text, if, for, slot and meta.
  5. Attributes and valuesWriting attributes, and what each becomes in the page.
  6. Components and eventsProps, slots, events, the event record, and template-only components.
  7. ExpressionsValues, operators and precedence, calls, pipes and lambdas.
  8. Standard functionsEvery function expressions can call, with an example of each.
  9. Declarationsstate, let and on: a template's own state and handlers.
  10. Data and effectsload, requests in handlers, and timers.
  11. Pages and routingapp/ and components/, companions, metadata, modes and the base path.
  12. Built-in elementsWeft's elements, canvas shapes, scene objects, and the HTML attributes written.
  13. ErrorsWhat the parser reports, and what to do about it.