curioustorvald/Terrarum-sans-bitmap
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more devanagari ligatures

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This commit is contained in:
minjaesong
2022-01-19 10:20:42 +09:00
parent 9675c40216
commit 07ca429483
5 changed files with 27 additions and 13 deletions
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30
src/net/torvald/terrarumsansbitmap/gdx/TerrarumSansBitmap.kt
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@@ -490,8 +490,6 @@ class TerrarumSansBitmap(
return null
}
private fun Int.charInfo() = "U+${this.toString(16).padStart(4, '0').toUpperCase()}: ${Character.getName(this)}"
override fun dispose() {
super.dispose()
@@ -1683,6 +1681,9 @@ class TerrarumSansBitmap(
'j'.toInt() to 0x237
)
internal fun Int.charInfo() = "U+${this.toString(16).padStart(4, '0').toUpperCase()}: ${Character.getName(this)}"
private val ZWNJ = 0x200C
private val ZWJ = 0x200D
private val tamilLigatingConsonants = listOf('க','ங','ச','ஞ','ட','ண','த','ந','ன','ப','ம','ய','ர','ற','ல','ள','ழ','வ').map { it.toInt() }.toIntArray()
@@ -1699,6 +1700,10 @@ class TerrarumSansBitmap(
private val DEVANAGARI_VIRAMA = 0x94D
private val DEVANAGARI_RA = 0x930
private val DEVANAGARI_RRA = 0x931
private val DEVANAGARI_SYLL_RU = 0xF0100
private val DEVANAGARI_SYLL_RUU = 0xF0101
private val DEVANAGARI_OPEN_YA = 0xF0103
private val DEVANAGARI_RA_SUPER = 0xF0104
private val DEVANAGARI_EYELASH_RA = 0xF012A
@@ -1707,15 +1712,17 @@ class TerrarumSansBitmap(
private val DEVANAGARI_LIG_T_T = 0xF018B
private val DEVANAGARI_LIG_T_R = 0xF0154
private val DEVANAGARI_LIG_SH_R = 0xF0166
private val DEVANAGARI_LIG_K_SS_R = 0xF016B
private val DEVANAGARI_LIG_J_NY_R = 0xF016C
private val DEVANAGARI_LIG_T_T_R = 0xF016D
private val DEVANAGARI_HALFLIG_K_SS = 0xF012B
private val DEVANAGARI_HALFLIG_J_NY = 0xF012C
private val DEVANAGARI_HALFLIG_T_T = 0xF012D
private val DEVANAGARI_HALFLIG_T_R = 0xF012E
private val DEVANAGARI_HALFLIG_SH_R = 0xF012F
private val DEVANAGARI_SYLL_RU = 0xF0100
private val DEVANAGARI_SYLL_RUU = 0xF0101
private val DEVANAGARI_HALF_FORMS = 0xF0100 // starting point for Devanagari half forms
private val DEVANAGARI_LIG_X_R = 0xF0140 // starting point for Devanagari ligature CONSONANT+RA
@@ -1739,15 +1746,20 @@ class TerrarumSansBitmap(
// TODO use proper version of Virama for respective scripts
private fun toRaAppended(c: CodePoint): List<CodePoint> {
if (c in devanagariBaseConsonants) return listOf(c - 0x0910 + DEVANAGARI_LIG_X_R)
else if (c == DEVANAGARI_LIG_K_SS) return listOf(DEVANAGARI_LIG_K_SS_R)
else if (c == DEVANAGARI_LIG_J_NY) return listOf(DEVANAGARI_LIG_J_NY_R)
else if (c == DEVANAGARI_LIG_T_T) return listOf(DEVANAGARI_LIG_T_T_R)
else return listOf(c, DEVANAGARI_VIRAMA, DEVANAGARI_RA)
}
private fun ligateIndicConsonants(c1: CodePoint, c2: CodePoint): List<CodePoint> {
println("[TerrarumSansBitmap] Indic ligation ${c1.charInfo()} - ${c2.charInfo()}")
if (c2 == DEVANAGARI_RA) return toRaAppended(c1) // Devanagari @.RA
when (c1) {
0x0915 -> /* Devanagari KA */ when (c2) {
0x0924 -> return listOf(0xF0180) // K.TA
0x0937 -> return listOf(DEVANAGARI_LIG_K_SS) // K.SSA
0x0924 -> return listOf(0xF0180) // K.T
0x0937 -> return listOf(DEVANAGARI_LIG_K_SS) // K.SS
0xF0167 -> return listOf(DEVANAGARI_LIG_K_SS_R) // K.SS.R
else -> return c1.toHalfFormOrVirama() + c2
}
0x0919 -> /* Devanagari NGA */ when (c2) {
@@ -1757,6 +1769,7 @@ class TerrarumSansBitmap(
}
0x091C -> /* Devanagari JA */ when (c2) {
0x091E -> return listOf(DEVANAGARI_LIG_J_NY) // J.NY
0xF014E -> return listOf(DEVANAGARI_LIG_J_NY_R) // J.NY.R
else -> return c1.toHalfFormOrVirama() + c2
}
0x091F -> /* Devanagari TTA */ when (c2) {
@@ -1779,6 +1792,7 @@ class TerrarumSansBitmap(
}
0x0924 -> /* Devanagari TA */ when (c2) {
0x0924 -> return listOf(DEVANAGARI_LIG_T_T) // T.T
DEVANAGARI_LIG_T_R -> return listOf(DEVANAGARI_LIG_T_T_R) // T.T.R
else -> return c1.toHalfFormOrVirama() + c2
}
0x0926 -> /* Devanagari DA */ when (c2) {
@@ -1801,7 +1815,7 @@ class TerrarumSansBitmap(
0x092E -> return listOf(0xF0196) // H.M
0x092F -> return listOf(0xF0197) // H.Y
0x0932 -> return listOf(0xF0198) // H.L
0x0935 -> return listOf(0xF0199) // H.v
0x0935 -> return listOf(0xF0199) // H.V
else -> return c1.toHalfFormOrVirama() + c2
}
else -> return c1.toHalfFormOrVirama() + c2 // TODO use proper version of Virama for respective scripts