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tags definition update to accomodate more weirdness

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minjaesong
2018-08-11 04:39:44 +09:00
parent 4ce58cf5d1
commit 1440908820
7 changed files with 116 additions and 109 deletions
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19
CONTRIBUTING.md
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@@ -47,15 +47,18 @@ Green-tinted area (should be 10 px tall) contains the tags. Tags are defined as
0 -+ 0 Align 1 Align 0 Align 1 Align before
1 -+ 0 left 0 right 1 centre 1 the glyph
0 == Write on top of prev chars (e.g. diacritics)
1 == Diacritics stack 0:upward/1:downward
(MSB) X == undefined, should be 0
1 == 0 Stack 1 Stack 0 Before 1 Up &
(MSB) 0 == 0 up 0 down 1 &After 1 Down (e.g. U+0C48)
NOTE: If glyphs are right or centre aligned, they must be aligned in the
same way inside of the bitmap; the program assumes every variable-
width glyphs to have a width of 15, regardless of the tagged width.
If the diacritic is aligned before the glyph, the diacritic itself
is always assumed as left-aligned, as this font will swap position
of said diacritic and the glyph right before it.
NOTE: If the diacritics comes before AND after the glyph (e.g. U+103C),
"Align before the glyph" must be set too.
If glyphs are right or centre aligned, they must be aligned in
the same way inside of the bitmap; the program assumes every vari-
able-width glyphs to have a width of 15, regardless of the tagged
width.
If the diacritic is aligned before the glyph, the diacritic it-
self is always assumed as left-aligned, as this font will exchange
position of said diacritic and the glyph right before it.
```
![Visual representation of left/right/centre align](alignment_illustration.jpg)