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Add more non-standard ligatures in the glyphlist.js file (issue 15516)

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Note that this PR only adds the "underscore"-variant of *actually existing* ligatures, however the referenced PDF document also uses a couple of non-standard ones (e.g. `ft`, `Th`, and `fh`) that we cannot easily support without larger changes (since they don't have official Unicode-entries).
Given that it's clearly the PDF document, and its fonts, that's the culprit here it's not entirely clear to me that we actually want to attempt a larger refactoring/rewriting of the `glyphlist.js` code, assuming it's even generally possible. Especially when this patch alone already improves our copy-paste behaviour when compared to both Adobe Reader and PDFium, and that this is only the *second* time this sort of bug has been reported.
This commit is contained in:
Jonas Jenwald 2022-09-27 15:19:57 +02:00
parent 5675a6ee64
commit c87f90102c
4 changed files with 23 additions and 1 deletions
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6
src/core/glyphlist.js
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@ -1828,10 +1828,13 @@ const getGlyphsUnicode = getArrayLookupTableFactory(function () {
"feicoptic", 0x03e5,
"female", 0x2640,
"ff", 0xfb00,
"f_f", 0xfb00, // Fixes issue 11016.
"f_f", 0xfb00,
"ffi", 0xfb03,
"f_f_i", 0xfb03,
"ffl", 0xfb04,
"f_f_l", 0xfb04,
"fi", 0xfb01,
"f_i", 0xfb01,
"fifteencircle", 0x246e,
"fifteenparen", 0x2482,
"fifteenperiod", 0x2496,
@ -1875,6 +1878,7 @@ const getGlyphsUnicode = getArrayLookupTableFactory(function () {
"fivesuperior", 0x2075,
"fivethai", 0x0e55,
"fl", 0xfb02,
"f_l", 0xfb02,
"florin", 0x0192,
"fmonospace", 0xff46,
"fmsquare", 0x3399,