| /* |
| * Copyright © 2018 Google, Inc. |
| * |
| * This is part of HarfBuzz, a text shaping library. |
| * |
| * Permission is hereby granted, without written agreement and without |
| * license or royalty fees, to use, copy, modify, and distribute this |
| * software and its documentation for any purpose, provided that the |
| * above copyright notice and the following two paragraphs appear in |
| * all copies of this software. |
| * |
| * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
| * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
| * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
| * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| * |
| * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
| * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
| * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
| * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
| * |
| * Google Author(s): Behdad Esfahbod |
| */ |
| |
| #ifndef HB_OT_SHAPE_COMPLEX_MYANMAR_HH |
| #define HB_OT_SHAPE_COMPLEX_MYANMAR_HH |
| |
| #include "hb.hh" |
| |
| #include "hb-ot-shape-complex-indic.hh" |
| |
| |
| /* buffer var allocations */ |
| #define myanmar_category() indic_category() /* myanmar_category_t */ |
| #define myanmar_position() indic_position() /* myanmar_position_t */ |
| |
| |
| /* Note: This enum is duplicated in the -machine.rl source file. |
| * Not sure how to avoid duplication. */ |
| enum myanmar_category_t { |
| OT_As = 18, /* Asat */ |
| OT_D0 = 20, /* Digit zero */ |
| OT_DB = OT_N, /* Dot below */ |
| OT_GB = OT_PLACEHOLDER, |
| OT_MH = 21, /* Various consonant medial types */ |
| OT_MR = 22, /* Various consonant medial types */ |
| OT_MW = 23, /* Various consonant medial types */ |
| OT_MY = 24, /* Various consonant medial types */ |
| OT_PT = 25, /* Pwo and other tones */ |
| OT_VAbv = 26, |
| OT_VBlw = 27, |
| OT_VPre = 28, |
| OT_VPst = 29, |
| OT_VS = 30, /* Variation selectors */ |
| OT_P = 31, /* Punctuation */ |
| OT_D = 32, /* Digits except zero */ |
| }; |
| |
| |
| static inline void |
| set_myanmar_properties (hb_glyph_info_t &info) |
| { |
| hb_codepoint_t u = info.codepoint; |
| unsigned int type = hb_indic_get_categories (u); |
| unsigned int cat = type & 0x7Fu; |
| indic_position_t pos = (indic_position_t) (type >> 8); |
| |
| /* Myanmar |
| * https://docs.microsoft.com/en-us/typography/script-development/myanmar#analyze |
| */ |
| if (unlikely (hb_in_range<hb_codepoint_t> (u, 0xFE00u, 0xFE0Fu))) |
| cat = OT_VS; |
| |
| switch (u) |
| { |
| case 0x104Eu: |
| cat = OT_C; /* The spec says C, IndicSyllableCategory doesn't have. */ |
| break; |
| |
| case 0x002Du: case 0x00A0u: case 0x00D7u: case 0x2012u: |
| case 0x2013u: case 0x2014u: case 0x2015u: case 0x2022u: |
| case 0x25CCu: case 0x25FBu: case 0x25FCu: case 0x25FDu: |
| case 0x25FEu: |
| cat = OT_GB; |
| break; |
| |
| case 0x1004u: case 0x101Bu: case 0x105Au: |
| cat = OT_Ra; |
| break; |
| |
| case 0x1032u: case 0x1036u: |
| cat = OT_A; |
| break; |
| |
| case 0x1039u: |
| cat = OT_H; |
| break; |
| |
| case 0x103Au: |
| cat = OT_As; |
| break; |
| |
| case 0x1041u: case 0x1042u: case 0x1043u: case 0x1044u: |
| case 0x1045u: case 0x1046u: case 0x1047u: case 0x1048u: |
| case 0x1049u: case 0x1090u: case 0x1091u: case 0x1092u: |
| case 0x1093u: case 0x1094u: case 0x1095u: case 0x1096u: |
| case 0x1097u: case 0x1098u: case 0x1099u: |
| cat = OT_D; |
| break; |
| |
| case 0x1040u: |
| cat = OT_D; /* XXX The spec says D0, but Uniscribe doesn't seem to do. */ |
| break; |
| |
| case 0x103Eu: case 0x1060u: |
| cat = OT_MH; |
| break; |
| |
| case 0x103Cu: |
| cat = OT_MR; |
| break; |
| |
| case 0x103Du: case 0x1082u: |
| cat = OT_MW; |
| break; |
| |
| case 0x103Bu: case 0x105Eu: case 0x105Fu: |
| cat = OT_MY; |
| break; |
| |
| case 0x1063u: case 0x1064u: case 0x1069u: case 0x106Au: |
| case 0x106Bu: case 0x106Cu: case 0x106Du: case 0xAA7Bu: |
| cat = OT_PT; |
| break; |
| |
| case 0x1038u: case 0x1087u: case 0x1088u: case 0x1089u: |
| case 0x108Au: case 0x108Bu: case 0x108Cu: case 0x108Du: |
| case 0x108Fu: case 0x109Au: case 0x109Bu: case 0x109Cu: |
| cat = OT_SM; |
| break; |
| |
| case 0x104Au: case 0x104Bu: |
| cat = OT_P; |
| break; |
| |
| case 0xAA74u: case 0xAA75u: case 0xAA76u: |
| /* https://github.com/roozbehp/unicode-data/issues/3 */ |
| cat = OT_C; |
| break; |
| } |
| |
| if (cat == OT_M) |
| { |
| switch ((int) pos) |
| { |
| case POS_PRE_C: cat = OT_VPre; |
| pos = POS_PRE_M; break; |
| case POS_ABOVE_C: cat = OT_VAbv; break; |
| case POS_BELOW_C: cat = OT_VBlw; break; |
| case POS_POST_C: cat = OT_VPst; break; |
| } |
| } |
| |
| info.myanmar_category() = cat; |
| info.myanmar_position() = pos; |
| } |
| |
| |
| #endif /* HB_OT_SHAPE_COMPLEX_MYANMAR_HH */ |