FA-47608 / Delimited text / Member archive

Unspecified sparse cells become empty strings · case 03

A structured table violates the declared record or column contract.

Member previewVariant 3 · 3 implementations · 11 checks per implementation

Case contract

Parse comma fields index=value into a fixed-width dense row. Indexes are unsigned decimal integers, zero based, strictly increasing and less than width; equal indexes reject. Missing positions remain null. Values may contain equals; empty values are retained.

Why this case matters

Delimited interchange needs explicit framing, schema and field semantics at ingestion and emission boundaries.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
gaps	`["cellcellcell", "", "z", ""]`	`["cellcellcell", null, "z", null]`	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.