#define indic_category() complex_var_persistent_u8_0() /* indic_category_t */
#define indic_position() complex_var_persistent_u8_1() /* indic_matra_category_t */
+
+
+#define IN_HALF_BLOCK(u, Base) ((u) & ~0x7F == (Base))
+
+#define IS_DEVA(u) (IN_HALF_BLOCK (u, 0x900))
+#define IS_BENG(u) (IN_HALF_BLOCK (u, 0x980))
+#define IS_GURM(u) (IN_HALF_BLOCK (u, 0xA00))
+#define IS_GUJA(u) (IN_HALF_BLOCK (u, 0xA80))
+#define IS_ORYA(u) (IN_HALF_BLOCK (u, 0xB00))
+#define IS_TAML(u) (IN_HALF_BLOCK (u, 0xB80))
+#define IS_TELU(u) (IN_HALF_BLOCK (u, 0xC00))
+#define IS_KNDA(u) (IN_HALF_BLOCK (u, 0xC80))
+#define IS_MLYM(u) (IN_HALF_BLOCK (u, 0xD00))
+#define IS_SINH(u) (IN_HALF_BLOCK (u, 0xD80))
+
+
+
#define INDIC_TABLE_ELEMENT_TYPE uint8_t
/* Cateories used in the OpenType spec:
INDIC_MATRA_CATEGORY_NOT_APPLICABLE = POS_BASE_C,
INDIC_MATRA_CATEGORY_LEFT = POS_PRE_M,
+
INDIC_MATRA_CATEGORY_TOP = POS_BEFORE_POST,
INDIC_MATRA_CATEGORY_BOTTOM = POS_BEFORE_POST,
INDIC_MATRA_CATEGORY_RIGHT = POS_AFTER_POST,
- /* We don't really care much about these since we decompose them
- * in the generic pre-shaping layer. They will only be used if
- * the font does not cover the decomposition. In which case, we
- * define these as aliases to the place we want the split-matra
- * glyph to show up. Quite arbitrary.
- *
- * TODO: There are some split matras without Unicode decompositions.
- * We have to figure out what to do with them.
- */
- INDIC_MATRA_CATEGORY_BOTTOM_AND_RIGHT = POS_AFTER_POST,
- INDIC_MATRA_CATEGORY_LEFT_AND_RIGHT = POS_AFTER_POST,
- INDIC_MATRA_CATEGORY_TOP_AND_BOTTOM = POS_BEFORE_POST,
- INDIC_MATRA_CATEGORY_TOP_AND_BOTTOM_AND_RIGHT = POS_AFTER_POST,
- INDIC_MATRA_CATEGORY_TOP_AND_LEFT = POS_BEFORE_POST,
- INDIC_MATRA_CATEGORY_TOP_AND_LEFT_AND_RIGHT = POS_AFTER_POST,
- INDIC_MATRA_CATEGORY_TOP_AND_RIGHT = POS_AFTER_POST,
+ /* These should resolve to the position of the last part of the split sequence. */
+ INDIC_MATRA_CATEGORY_BOTTOM_AND_RIGHT = INDIC_MATRA_CATEGORY_RIGHT,
+ INDIC_MATRA_CATEGORY_LEFT_AND_RIGHT = INDIC_MATRA_CATEGORY_RIGHT,
+ INDIC_MATRA_CATEGORY_TOP_AND_BOTTOM = INDIC_MATRA_CATEGORY_BOTTOM,
+ INDIC_MATRA_CATEGORY_TOP_AND_BOTTOM_AND_RIGHT = INDIC_MATRA_CATEGORY_RIGHT,
+ INDIC_MATRA_CATEGORY_TOP_AND_LEFT = INDIC_MATRA_CATEGORY_TOP,
+ INDIC_MATRA_CATEGORY_TOP_AND_LEFT_AND_RIGHT = INDIC_MATRA_CATEGORY_RIGHT,
+ INDIC_MATRA_CATEGORY_TOP_AND_RIGHT = INDIC_MATRA_CATEGORY_RIGHT,
INDIC_MATRA_CATEGORY_INVISIBLE = INDIC_MATRA_CATEGORY_NOT_APPLICABLE,
INDIC_MATRA_CATEGORY_OVERSTRUCK = INDIC_MATRA_CATEGORY_NOT_APPLICABLE,