Mete, You can view samples of pakistan style mushaf at http://www.quranpak.com/samples.htm . The company sells Quran publishing software, with the calligraphy style preserved. I've no idea how they implement it, but I doubt it'll be unicode compliant. In any case, I think you already know the difference. The superscript alef is used as mad symbol (the "a" sound, 2 harakat, without the fatha) in most other writing style, while in madinah mushaf it only have small alef, which represent a required alef in pronunciation but missing in writing. The alef might be mad , might not, but does not represent the "a" sound. The "a" sound always required a fatha.
You can find standalone small alef at sura 2, aya 72. I'm not sure about other places. You can find superscript waw at sura 17, aya 7. I think it only has one occurance in the Mushaf. For both tanween ending with meem and sequential one, we might have implementation problem because of the following: For a pure truetype font, it is almost impossible to implement (I think ), without opentype support (the GSUB table). I think the same applies to bitmap font.Suppose the rendering engine encounter the sequence (fathatan + sukun, or fathatan + superscript meem), the engine will know that it needs to replace it with a new glyph. However, since the new glyph does not have a unicode code point, how is the rendering engine will find the glyph? In truetype, each glyph has it's own index number, unicode code is optional. However, there is no standard in ttf which glyph should be assign to which index no. So, to my knowledge it is almost impossible to implement this feature using truetype, bitmap (bdf, windows .fon), and postscript font (not to sure about the last one, but i think it is the same), unless someone can tell me how this can be implemented , or some features that I'm not aware of about these font. This issue does not arise with opentype, since it has GSUB table. The font designer can easily tell the rendering engine to substitute the sequence with the glyph he wants (without the need ot unicode code point). So, please do consider this issue. Regards.
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