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Every em-dash in compliance_test.go's section headers had been double-encoded through CP437 (the Windows console code page) into a six-character garble, 21 times over. TestNoMojibake, which lives in that same file, matched only the Windows-1252 signature (C3 A2 E2), so it passed on its own corruption. Restore the em-dashes and give the detector two more signatures: single CP437 (CE 93 C3) and CP437 applied twice (E2 95 AC C3 B4). Each is the garbled form of UTF-8 lead byte 0xE2, which every dash, quote, ellipsis, and arrow shares, so none occurs in real text. The failure message names the code page. The doc comment spells its examples as code points, since the literal forms would trip the test on its own file. Also: build the failure-context slice with max/min (the old code gave no leading context for a match in the first 20 bytes), and make the allGoFiles doc comment list all five skipped directories instead of only vendor/. Spec: specs/mojibake-cp437-detection.md Signed-off-by: Jose Alekhinne <jose@ctx.ist>
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Every em-dash in compliance_test.go's section headers had been
double-encoded through CP437 (the Windows console code page) into a
six-character garble, 21 times over. TestNoMojibake, which lives in
that same file, matched only the Windows-1252 signature (C3 A2 E2),
so it passed on its own corruption.
Restore the em-dashes and give the detector two more signatures:
single CP437 (CE 93 C3) and CP437 applied twice (E2 95 AC C3 B4).
Each is the garbled form of UTF-8 lead byte 0xE2, which every
dash, quote, ellipsis, and arrow shares, so none occurs in real
text. The failure message names the code page. The doc comment
spells its examples as code points, since the literal forms would
trip the test on its own file.
Also: build the failure-context slice with max/min (the old code
gave no leading context for a match in the first 20 bytes), and
make the allGoFiles doc comment list all five skipped directories
instead of only vendor/.
Spec: specs/mojibake-cp437-detection.md
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