FA-192 / Protocols / Member archive

Grouping query parameters loses their original order · case 02

Repeated parameters disappear or move past parameters that originally separated them.

Member previewVariant 2 · 3 implementations · 8 checks per implementation

Case contract

Parse an application/x-www-form-urlencoded query into ordered [key, value] pairs. Preserve repeated keys, empty keys, and empty values; ignore empty separator-only segments.

Why this case matters

Some request-signature, forwarding and audit formats depend on exact ordered parameter multiplicity. A mapping is a lossy intermediate representation for that contract.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
interleaved duplicate keys	`[["a", "last"], ["b", "x"]]`	`[["a", "2"], ["b", "x"], ["a", "last"]]`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.