FA-66778 / Airline fare rule evaluation / Member archive

Flight number ranges compared as strings · case 03

Flight AA99 qualifies for a 100-999 range, and zero-padded numbers fall outside ranges they belong to.

Member previewVariant 3 · 3 implementations · 9 checks per implementation

Case contract

Input {'segments':[[carrier, flight number string]],'ranges':[[carrier, lo, hi]],'except':[[carrier, flight]]}. Flight numbers are numeric strings that may carry leading zeros; carriers are case-insensitive (tables are uppercase). A segment qualifies if some inclusive range covers it numerically and it is not an exception; exceptions always win. Return one boolean per segment.

Why this case matters

Fare rules restrict validity to flight number ranges with exceptions; flight numbers are identifiers encoded as zero-padded digits.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
three-digit versus two-digit	`[true, true, true]`	`[false, true, true]`	Failed

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