FA-47679 / Delimited text / Member archive

A CSV emitter appends its record terminator to each cell · case 04

A structured table violates the declared record or column contract.

Member previewVariant 4 · 3 implementations · 11 checks per implementation

Case contract

Emit typed table cells as one comma row ending CRLF. None is bare NULL; strings equal NULL or empty must be quoted. Booleans are bare true/false, integers bare decimal. Other strings are quoted if they contain comma, quote, newline, CR, leading/trailing space, or begin # (comment protection). Double embedded quotes. Preserve Unicode and cell order.

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
typed	`"cellcellcellcell\r\n,NULL\r\n,true\r\n,false\r\n,12\r\n\r\n"`	`"cellcellcellcell,NULL,true,false,12\r\n"`	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.