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Diffstat (limited to 'tex/context/base/mkiv/font-dsp.lua')
| -rw-r--r-- | tex/context/base/mkiv/font-dsp.lua | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tex/context/base/mkiv/font-dsp.lua b/tex/context/base/mkiv/font-dsp.lua index 1fe4289b2..ba92c62be 100644 --- a/tex/context/base/mkiv/font-dsp.lua +++ b/tex/context/base/mkiv/font-dsp.lua @@ -1215,7 +1215,7 @@ function gsubhandlers.single(f,fontdata,lookupid,lookupoffset,offset,glyphs,nofg local delta = readshort(f) -- can be negative local coverage = readcoverage(f,tableoffset+coverage) -- not simple as we need to set key/value anyway for index in next, coverage do - local newindex = index + delta + local newindex = (index + delta) % 65536 -- modulo is new in 1.8.3 if index > nofglyphs or newindex > nofglyphs then report("invalid index in %s format %i: %i -> %i (max %i)","single",subtype,index,newindex,nofglyphs) coverage[index] = nil |