FA-48814 / Delimited text / Member archive

Blank physical CSV records disappear from the provenance stream · case 04

A structured table violates the declared record or column contract.

Member previewVariant 4 · 3 implementations · 7 checks per implementation

Case contract

Parse bounded valid CSV text using Python csv.reader and report each logical row with inclusive one-based physical start/end line numbers. Quoted embedded newlines count as physical lines. Empty input gives no rows; blank physical lines are zero-cell rows. Return [start,end,cells].

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
blank middle	`[[1, 1, ["a"]], [3, 3, ["z"]]]`	`[[1, 1, ["a"]], [2, 2, []], [3, 3, ["z"]]]`	Failed

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