From 04c4767150fe398d1f687e044cfc014151ad5e26 Mon Sep 17 00:00:00 2001 From: David Corbett Date: Sun, 26 Jun 2022 21:44:51 -0400 Subject: [PATCH] [lao] Decompose and reorder U+0EB3 around U+0EBB --- src/hb-algs.hh | 5 +++++ src/hb-ot-shaper-thai.cc | 8 ++++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/src/hb-algs.hh b/src/hb-algs.hh index 0f08d5070..f1633d886 100644 --- a/src/hb-algs.hh +++ b/src/hb-algs.hh @@ -857,6 +857,11 @@ hb_in_ranges (T u, T lo1, T hi1, T lo2, T hi2, T lo3, T hi3) { return hb_in_range (u, lo1, hi1) || hb_in_range (u, lo2, hi2) || hb_in_range (u, lo3, hi3); } +template static inline bool +hb_in_ranges (T u, T lo1, T hi1, T lo2, T hi2, T lo3, T hi3, T lo4, T hi4) +{ + return hb_in_range (u, lo1, hi1) || hb_in_range (u, lo2, hi2) || hb_in_range (u, lo3, hi3) || hb_in_range (u, lo4, hi4); +} /* diff --git a/src/hb-ot-shaper-thai.cc b/src/hb-ot-shaper-thai.cc index a2081fd0f..1280e7ed1 100644 --- a/src/hb-ot-shaper-thai.cc +++ b/src/hb-ot-shaper-thai.cc @@ -279,7 +279,7 @@ preprocess_text_thai (const hb_ot_shape_plan_t *plan, * to be what Uniscribe and other engines implement. According to Eric Muller: * * When you have a SARA AM, decompose it in NIKHAHIT + SARA AA, *and* move the - * NIKHAHIT backwards over any above-base marks (0E31, 0E34-0E37, 0E47-0E4E). + * NIKHAHIT backwards over any above-base marks. * * <0E14, 0E4B, 0E33> -> <0E14, 0E4D, 0E4B, 0E32> * @@ -308,8 +308,8 @@ preprocess_text_thai (const hb_ot_shape_plan_t *plan, * Nikhahit: U+0E4D U+0ECD * * Testing shows that Uniscribe reorder the following marks: - * Thai: <0E31,0E34..0E37,0E47..0E4E> - * Lao: <0EB1,0EB4..0EB7,0EC7..0ECE> + * Thai: <0E31,0E34..0E37, 0E47..0E4E> + * Lao: <0EB1,0EB4..0EB7,0EBB,0EC8..0ECD> * * Note how the Lao versions are the same as Thai + 0x80. */ @@ -319,7 +319,7 @@ preprocess_text_thai (const hb_ot_shape_plan_t *plan, #define IS_SARA_AM(x) (((x) & ~0x0080u) == 0x0E33u) #define NIKHAHIT_FROM_SARA_AM(x) ((x) - 0x0E33u + 0x0E4Du) #define SARA_AA_FROM_SARA_AM(x) ((x) - 1) -#define IS_ABOVE_BASE_MARK(x) (hb_in_ranges ((x) & ~0x0080u, 0x0E34u, 0x0E37u, 0x0E47u, 0x0E4Eu, 0x0E31u, 0x0E31u)) +#define IS_ABOVE_BASE_MARK(x) (hb_in_ranges ((x) & ~0x0080u, 0x0E34u, 0x0E37u, 0x0E47u, 0x0E4Eu, 0x0E31u, 0x0E31u, 0x0E3Bu, 0x0E3Bu)) buffer->clear_output (); unsigned int count = buffer->len;