Volker Kunert created FOP-3078:
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             Summary: Wrong position of macron in S WITH COMBINING HORN AND 
COMBINING MACRON
                 Key: FOP-3078
                 URL: https://issues.apache.org/jira/browse/FOP-3078
             Project: FOP
          Issue Type: Bug
          Components: font/opentype
    Affects Versions: trunk
            Reporter: Volker Kunert
         Attachments: 
S_WITH_COMBINING_HORN_AND_COMBINING_MACRON_NotoSansMono-Regular.png, 
fop-din-spec-91379.fo, fop-din-spec-91379.fo.pdf, fop-s-horn-macron.fo, 
fop-s-horn-macron.fo.pdf, fop.conf, image-2022-06-11-12-17-21-602.png

In the sequences

0053 031B 0304; LATIN CAPITAL LETTER S WITH COMBINING HORN AND COMBINING 
MACRON; S̛̄;

and

0073 031B 0304; LATIN SMALL LETTER S WITH COMBINING HORN AND COMBINING MACRON; 
s̛̄;

the MACRON has a wrong position for font Noto Sans Mono Regular.

Compare rendering with FOP:  !image-2022-06-11-12-17-21-602.png!

and with HarfBuzz hb-view:  
!S_WITH_COMBINING_HORN_AND_COMBINING_MACRON_NotoSansMono-Regular.png!

See also: [^fop-s-horn-macron.fo], [^fop-din-spec-91379.fo.pdf]

Rendering with font Noto Sans Regular is correct.

For reference I added the letters of DIN SPEC 91379: [^fop-din-spec-91379.fo], 
[^fop-din-spec-91379.fo.pdf]



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