[poppler] FontInfo::getToUnicode()

[Brad Hards]

On Sun, 3 Jul 2005 13:41 pm, Leonard Rosenthol wrote:
> At 12:58 PM +1000 7/2/05, Brad Hards wrote:
> >Can anyone tell me what the meaning of the subject call is?
>
> 	Sure, it returns the "ToUnicode" table associated with the
> font (if one is present).
Hmm, it return a GBool, so I guess it means that there is such a table.

> >  >From reading the code, I guess it means that the text in that font
> >
> >is actually  unicode encoded,
>
> 	Actually, it means exactly the opposite!
>
> 	It means that the code points used in the content stream are
> NOT easily mapped to Unicode codepoints - and so a table needs to be
> present in the PDF to allow the viewer/consumer to correctly convert
> to Unicode codepoints, and thus enable correct text extraction.
OK, so the function call might be better called "requiresUnicodeLookup()"?

Brad
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