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I'm working on fonts that should support a maximum of accented characters (precomposed and composed). What's the best way to use OpenType features to avoid making smallcaps, etc. of every accented character (if that's possible)?
Can 'ccmp' and 'liga' be applied together on each precomposed character to get composed variants when applying features such as 'c2sc', 'smcp', etc.?
How do font renderers handle 'ccmp' and 'liga' when together?
The test program (TrueTypeViewer) shows the desired behaviour. For example Â (Acircumflex, ccmp: A + uni0302, liga: A + uni0302) is always rendered as Â (circumflex) when the default 'ccmp' and 'liga' for latn are enabled. When applying 'c2sc' the desired composed smallcap Â (A.small + uni0302) is displayed.
Would this work on most systems? Do some display the precomposed forms instead of the composed ones when not advanced feature is applied?
How do you deal with advanced features for tons of precomposed characters?