FA-48474 / Delimited text / Member archive

A repeat control copies the first table row forever · case 04

A structured table violates the declared record or column contract.

Member previewVariant 4 · 3 implementations · 7 checks per implementation

Case contract

Read comma rows, with an R|count control line repeating the most recent data row count additional times. Count must be positive ASCII decimal; controls cannot precede data. Repeated rows do not become a distinct source row. Return independent row values in order; ordinary payloads contain no pipe.

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
new source	`[["a", "b"], ["a", "b"], ["cellcellcellcell", "z"], ["a", "b"]]`	`[["a", "b"], ["a", "b"], ["cellcellcellcell", "z"], ["cellcellcellcell", "z"]]`	Failed

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