writeonce/docs/examples/writeonce-framework/http/form.wo
shoney.arickathil 771180fd28 feat: iterations 19 + 17 — Float/Bytes scalars (.wob v5), library kind + internal/
- Float full stack: literals (fraction/exponent; `0..10` still a range), f64
  opcodes 34-41, @table column, WAL bit-exact replay, json fractions in and
  shortest-round-trip out. IEEE-quiet — FDIV never traps where DIV does.
- Bytes: a wo_str with its own class id, so alloc/free/copy are shared but no
  Text builtin accepts one; len/at/slice/eq/concat, base64 both ways, json
  boundary as base64; TEXT_COPY preserves the kind.
- No implicit Int/Float mixing (WO-E201 in the typechecker, not the emitter,
  which picks the opcode from one side and would misread the other).
- One IEEE deviation: float_cmp total order (NaN last, -0.0 == +0.0) for
  indexes and order-by, keys canonicalized to match. `?Float` nil is a
  reserved quiet NaN — the zero word is +0.0, WO_NIL_SCALAR's bits are -2.0.
- Renderer prefers fixed over exponential in 1e-6..1e21: pure shortest makes
  a price of 900.0 read `9e+02`. One renderer for interp/json/float_to_text.
- Fixed en route: lexer double-counted the leading digit; is_scalar_shaped
  took Float/Bytes as Int-shaped; Bytes ownership needed a shared heap-scalar
  predicate or temps never dropped; order-by bit-compared negatives backwards.
- Iteration 17: `kind = "library"` (absent = program; bad value = WO-E109),
  entry-less check mode retiring the `--emit` workaround, Go's `internal/` as
  WO-E108 at the consumer's `use`. Driver-only; VM/.wob/GC untouched.
- Framework reorg: internal/{parse,serve}.wo; http/form.wo split out to keep
  media_type/form_values public (parse.wo had grown public surface).
- Docs: link audit (97 -> 88 broken, conflict markers resolved, 2 duplicate
  stories removed), 00-code-review verified 26/27, iterations re-sequenced.
- Also carries the pre-staged pub(read)/using/#if work from the index.
- Gates: corpus 103/0, test_wal 156/0, web-app 26/0, oop-accept ALL MET.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-20 19:24:15 +02:00

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1.3 KiB
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-- http/form.wo — the public body-inspection surface: what media type a
-- request carries, and form-encoded bodies as decoded pairs.
--
-- PUBLIC by design (iteration 17). It sits here rather than in
-- `internal/parse.wo` with the rest of the parsing code because these two
-- functions are exactly what a consuming app calls; the decoders they lean on
-- stay behind the privacy line. `use internal` is legal INSIDE the library —
-- the boundary is consumer-only.
use internal
-- The request's media type: the content-type header lowercased with any
-- parameters ("; charset=...") stripped; "" when the header is absent.
pub fn media_type(req: Req) -> Text {
let ct = req.headers["content-type"];
if ct == nil { return ""; }
let semi = index_of(ct, ";");
if semi >= 0 { return to_lower(trim(substr(ct, 0, semi))); }
return to_lower(trim("${ct}"));
}
-- Form-encoded body -> decoded pairs ('+' as space, %XX), the body-parsing
-- hook for application/x-www-form-urlencoded. nil when the content-type
-- says the body is something else — a JSON body is not silently misread
-- as one giant form key.
pub fn form_values(req: Req) -> ?map<Text, Text> {
if media_type(req) != "application/x-www-form-urlencoded" { return nil; }
return parse_query(req.body);
}