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thai-qr-payment

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Version 0.1.1

Patch Changes

  • e4af92f Thanks @uunw! - Fix QR matrix alignment-pattern placement for v2-v40. The previous alignmentCentres() lost the spec’s intermediate positions through a buggy shift()/unshift() sequence, leaving alignment patterns at the wrong coordinates (or missing entirely). Every QR at version ≥ 2 was rejected by scanners as “invalid”. v1 was unaffected because it has no alignment patterns.

    Rewrite the routine using the canonical “walk backwards from dim - 7, prepending each position until we hit floor(v/7) + 2 entries” algorithm from ISO/IEC 18004 Annex E. Adds 10 regression tests against the Annex E table.

    QR output now decodes cleanly via jsQR for every (version, ECC, mask) combination, including the 80+ character Thai QR Payment payloads at v6-H that scanners previously rejected.