FA-96137 / Postal address normalization / Member archive

Ordinal street name normalizer: only TH-suffixed numerals are corrected · case 02

"2ST" is left as typed instead of "2ND".

Member previewVariant 2 · 3 implementations · 10 checks per implementation

Case contract

Uppercase, turn hyphens into spaces and split. A tens word (TWENTY, THIRTY, FORTY) immediately followed by a unit ordinal (FIRST..NINTH) forms one number; unit ordinals and TENTH..THIRTEENTH stand alone; digit tokens ending in ST/ND/RD/TH are re-suffixed. Each number is written with the suffix TH for values ending 11-13 (mod 100), else ST/ND/RD for final digits 1/2/3, else TH. Other tokens pass through.

Why this case matters

"Twenty-First Ave" and "21st Ave" must produce the same key or two addresses for one building never match.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
numeric ordinal with wrong suffix	`"2ST ST"`	`"2ND ST"`	Failed

MEMBER ARCHIVE

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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