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#lang fontkit/racket
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(require xenomorph)
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(provide (all-defined-out))
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#|
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approximates
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https://github.com/mbutterick/fontkit/blob/master/src/tables/glyf.js
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|#
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(define-subclass Struct (Rglyf))
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(define glyf (+Array (+RBuffer)))
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(test-module
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(define ip (open-input-file charter-path))
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(define dir (deserialize (read (open-input-file charter-directory-path))))
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(define offset (· dir tables glyf offset))
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(define len (· dir tables glyf length))
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(check-equal? offset 4620)
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(check-equal? len 34072)
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(set-port-position! ip 0)
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(define table-bytes (peek-bytes len offset ip)))
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