Vanilla JS (no build tools) counterpart to shared/sexp/ Python modules.
Parses s-expression text, evaluates special forms, and renders to DOM
nodes or HTML strings. Full component system with defcomp/~name.
Includes:
- Parser: tokenizer + parse/parseAll matching Python parser exactly
- Evaluator: all special forms (if, when, cond, let, and, or, lambda,
defcomp, define, ->, set!), higher-order forms (map, filter, reduce)
- DOM renderer: createElement for HTML tags, SVG namespace support,
component invocation, raw! for pre-rendered HTML, <> fragments
- String renderer: matches Python html.render output for SSR parity
- ~50 built-in primitives (arithmetic, string, collection, predicates)
- 35 parity tests verifying JS output matches Python output via Node.js
Also fixes Python raw! handler to properly unwrap _RawHTML objects.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Fixes EvalError: Undefined symbol: path when rendering ~mobile-filter
component which uses an SVG <path> element.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
S-expression AST → HTML string renderer with ~100 HTML tags, void elements,
boolean attributes, XSS escaping, raw!, fragments, and components. Render-aware
special forms (if, when, cond, let, map, etc.) handle HTML tags in control flow
branches correctly by calling _render instead of _eval.
63 new tests (172 total across parser, evaluator, renderer).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
