+/*
+ * Copyright © 2015 Mozilla Foundation.
+ * Copyright © 2015 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.
+ *
+ * Mozilla Author(s): Jonathan Kew
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_OT_SHAPE_COMPLEX_USE_MACHINE_HH
+#define HB_OT_SHAPE_COMPLEX_USE_MACHINE_HH
+
+#include "hb-private.hh"
+
+%%{
+ machine use_syllable_machine;
+ alphtype unsigned char;
+ write data;
+}%%
+
+%%{
+
+# Same order as enum use_category_t. Not sure how to avoid duplication.
+
+O = 0; # OTHER
+
+B = 1; # BASE
+IV = 2; # BASE_VOWEL
+IND = 3; # BASE_IND
+N = 4; # BASE_NUM
+GB = 5; # BASE_OTHER
+CGJ = 6; # CGJ
+#F = 7; # CONS_FINAL
+FM = 8; # CONS_FINAL_MOD
+#M = 9; # CONS_MED
+#CM = 10; # CONS_MOD
+SUB = 11; # CONS_SUB
+H = 12; # HALANT
+HN = 13; # HALANT_NUM
+ZWNJ = 14; # Zero width non-joiner
+ZWJ = 15; # Zero width joiner
+WJ = 16; # Word joiner
+Rsv = 17; # Reserved characters
+R = 18; # REPHA
+S = 19; # SYM
+#SM = 20; # SYM_MOD
+VS = 21; # VARIATION_SELECTOR
+#V = 22; # VOWEL
+#VM = 23; # VOWEL_MOD
+
+FAbv = 24; # CONS_FINAL_ABOVE
+FBlw = 25; # CONS_FINAL_BELOW
+FPst = 26; # CONS_FINAL_POST
+MAbv = 27; # CONS_MED_ABOVE
+MBlw = 28; # CONS_MED_BELOW
+MPst = 29; # CONS_MED_POST
+MPre = 30; # CONS_MED_PRE
+CMAbv = 31; # CONS_MOD_ABOVE
+CMBlw = 32; # CONS_MOD_BELOW
+VAbv = 33; # VOWEL_ABOVE / VOWEL_ABOVE_BELOW / VOWEL_ABOVE_BELOW_POST / VOWEL_ABOVE_POST
+VBlw = 34; # VOWEL_BELOW / VOWEL_BELOW_POST
+VPst = 35; # VOWEL_POST UIPC = Right
+VPre = 36; # VOWEL_PRE / VOWEL_PRE_ABOVE / VOWEL_PRE_ABOVE_POST / VOWEL_PRE_POST
+VMAbv = 37; # VOWEL_MOD_ABOVE
+VMBlw = 38; # VOWEL_MOD_BELOW
+VMPst = 39; # VOWEL_MOD_POST
+VMPre = 40; # VOWEL_MOD_PRE
+SMAbv = 41; # SYM_MOD_ABOVE
+SMBlw = 42; # SYM_MOD_BELOW
+
+
+consonant_modifiers = CMAbv* CMBlw* ((H B | SUB) VS? CMAbv? CMBlw*)*;
+medial_consonants = MPre? MAbv? MBlw? MPst?;
+dependent_vowels = VPre* VAbv* VBlw* VPst*;
+vowel_modifiers = VMPre* VMAbv* VMBlw* VMPst*;
+final_consonants = FAbv* FBlw* FPst* FM?;
+
+virama_terminated_cluster =
+ R? (B | GB | IV) VS?
+ consonant_modifiers
+ H
+;
+consonant_cluster =
+ R? (B | GB) VS?
+ consonant_modifiers
+ medial_consonants
+ dependent_vowels
+ vowel_modifiers
+ final_consonants
+;
+vowel_cluster =
+ R? (IV) VS?
+ consonant_modifiers
+ medial_consonants
+ vowel_modifiers
+ final_consonants
+;
+
+number_joiner_terminated_cluster = N VS? (H N VS?)* H;
+numeral_cluster = N VS? (H N VS?)*;
+symbol_cluster = S VS? SMAbv* SMBlw*;
+independent_cluster = (IND | O | Rsv | WJ) VS?;
+
+main := |*
+ independent_cluster => { found_syllable (independent_cluster); };
+ virama_terminated_cluster => { found_syllable (virama_terminated_cluster); };
+ consonant_cluster => { found_syllable (consonant_cluster); };
+ vowel_cluster => { found_syllable (vowel_cluster); };
+ number_joiner_terminated_cluster => { found_syllable (number_joiner_terminated_cluster); };
+ numeral_cluster => { found_syllable (numeral_cluster); };
+ symbol_cluster => { found_syllable (symbol_cluster); };
+*|;
+
+
+}%%
+
+#define found_syllable(syllable_type) \
+ HB_STMT_START { \
+ if (0) fprintf (stderr, "syllable %d..%d %s\n", last, p+1, #syllable_type); \
+ for (unsigned int i = last; i < p+1; i++) \
+ info[i].syllable() = (syllable_serial << 4) | syllable_type; \
+ last = p+1; \
+ syllable_serial++; \
+ if (unlikely (syllable_serial == 16)) syllable_serial = 1; \
+ } HB_STMT_END
+
+static void
+find_syllables (hb_buffer_t *buffer)
+{
+ unsigned int p, pe, eof, ts HB_UNUSED, te HB_UNUSED, act HB_UNUSED;
+ int cs;
+ hb_glyph_info_t *info = buffer->info;
+ %%{
+ write init;
+ getkey info[p].use_category();
+ }%%
+
+ p = 0;
+ pe = eof = buffer->len;
+
+ unsigned int last = 0;
+ unsigned int syllable_serial = 1;
+ %%{
+ write exec;
+ }%%
+}
+
+#undef found_syllable
+
+#endif /* HB_OT_SHAPE_COMPLEX_USE_MACHINE_HH */
+/*
+ * Copyright © 2015 Mozilla Foundation.
+ * Copyright © 2015 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.
+ *
+ * Mozilla Author(s): Jonathan Kew
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_OT_SHAPE_COMPLEX_USE_PRIVATE_HH
+#define HB_OT_SHAPE_COMPLEX_USE_PRIVATE_HH
+
+#include "hb-private.hh"
+
+
+#include "hb-ot-shape-complex-private.hh"
+
+
+#define USE_TABLE_ELEMENT_TYPE uint16_t
+
+/* Cateories used in the Universal Shaping Engine spec:
+ * https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm
+ */
+/* Note: This enum is duplicated in the -machine.rl source file.
+ * Not sure how to avoid duplication. */
+enum use_category_t {
+ USE_O = 0, /* OTHER */
+
+ USE_B = 1, /* BASE */
+ USE_IV = 2, /* BASE_VOWEL */
+ USE_IND = 3, /* BASE_IND */
+ USE_N = 4, /* BASE_NUM */
+ USE_GB = 5, /* BASE_OTHER */
+ USE_CGJ = 6, /* CGJ */
+// USE_F = 7, /* CONS_FINAL */
+ USE_FM = 8, /* CONS_FINAL_MOD */
+// USE_M = 9, /* CONS_MED */
+// USE_CM = 10, /* CONS_MOD */
+ USE_SUB = 11, /* CONS_SUB */
+ USE_H = 12, /* HALANT */
+ USE_HN = 13, /* HALANT_NUM */
+ USE_ZWNJ = 14, /* Zero width non-joiner */
+ USE_ZWJ = 15, /* Zero width joiner */
+ USE_WJ = 16, /* Word joiner */
+ USE_Rsv = 17, /* Reserved characters */
+ USE_R = 18, /* REPHA */
+ USE_S = 19, /* SYM */
+// USE_SM = 20, /* SYM_MOD */
+ USE_VS = 21, /* VARIATION_SELECTOR */
+// USE_V = 22, /* VOWEL */
+// USE_VM = 23, /* VOWEL_MOD */
+
+ USE_FAbv = 24, /* CONS_FINAL_ABOVE */
+ USE_FBlw = 25, /* CONS_FINAL_BELOW */
+ USE_FPst = 26, /* CONS_FINAL_POST */
+ USE_MAbv = 27, /* CONS_MED_ABOVE */
+ USE_MBlw = 28, /* CONS_MED_BELOW */
+ USE_MPst = 29, /* CONS_MED_POST */
+ USE_MPre = 30, /* CONS_MED_PRE */
+ USE_CMAbv = 31, /* CONS_MOD_ABOVE */
+ USE_CMBlw = 32, /* CONS_MOD_BELOW */
+ USE_VAbv = 33, /* VOWEL_ABOVE / VOWEL_ABOVE_BELOW / VOWEL_ABOVE_BELOW_POST / VOWEL_ABOVE_POST */
+ USE_VBlw = 34, /* VOWEL_BELOW / VOWEL_BELOW_POST */
+ USE_VPst = 35, /* VOWEL_POST UIPC = Right */
+ USE_VPre = 36, /* VOWEL_PRE / VOWEL_PRE_ABOVE / VOWEL_PRE_ABOVE_POST / VOWEL_PRE_POST */
+ USE_VMAbv = 37, /* VOWEL_MOD_ABOVE */
+ USE_VMBlw = 38, /* VOWEL_MOD_BELOW */
+ USE_VMPst = 39, /* VOWEL_MOD_POST */
+ USE_VMPre = 40, /* VOWEL_MOD_PRE */
+ USE_SMAbv = 41, /* SYM_MOD_ABOVE */
+ USE_SMBlw = 42 /* SYM_MOD_BELOW */
+};
+
+/* Categories used in IndicSyllabicCategory.txt from UCD. */
+enum indic_syllabic_category_t
+{
+ INDIC_SYLLABIC_CATEGORY_AVAGRAHA,
+ INDIC_SYLLABIC_CATEGORY_BINDU,
+ INDIC_SYLLABIC_CATEGORY_BRAHMI_JOINING_NUMBER,
+ INDIC_SYLLABIC_CATEGORY_CANTILLATION_MARK,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_DEAD,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_FINAL,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_HEAD_LETTER,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_KILLER,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_MEDIAL,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_PLACEHOLDER,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_PRECEDING_REPHA,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_PREFIXED,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_SUBJOINED,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_SUCCEEDING_REPHA,
+ INDIC_SYLLABIC_CATEGORY_CONSONANT_WITH_STACKER,
+ INDIC_SYLLABIC_CATEGORY_GEMINATION_MARK,
+ INDIC_SYLLABIC_CATEGORY_INVISIBLE_STACKER,
+ INDIC_SYLLABIC_CATEGORY_JOINER,
+ INDIC_SYLLABIC_CATEGORY_MODIFYING_LETTER,
+ INDIC_SYLLABIC_CATEGORY_NON_JOINER,
+ INDIC_SYLLABIC_CATEGORY_NUKTA,
+ INDIC_SYLLABIC_CATEGORY_NUMBER,
+ INDIC_SYLLABIC_CATEGORY_NUMBER_JOINER,
+ INDIC_SYLLABIC_CATEGORY_OTHER,
+ INDIC_SYLLABIC_CATEGORY_PURE_KILLER,
+ INDIC_SYLLABIC_CATEGORY_REGISTER_SHIFTER,
+ INDIC_SYLLABIC_CATEGORY_SYLLABLE_MODIFIER,
+ INDIC_SYLLABIC_CATEGORY_TONE_LETTER,
+ INDIC_SYLLABIC_CATEGORY_TONE_MARK,
+ INDIC_SYLLABIC_CATEGORY_VIRAMA,
+ INDIC_SYLLABIC_CATEGORY_VISARGA,
+ INDIC_SYLLABIC_CATEGORY_VOWEL,
+ INDIC_SYLLABIC_CATEGORY_VOWEL_DEPENDENT,
+ INDIC_SYLLABIC_CATEGORY_VOWEL_INDEPENDENT,
+};
+
+/* Categories used in IndicPositionalCategory.txt from UCD */
+enum indic_matra_category_t {
+ INDIC_POSITIONAL_CATEGORY_BOTTOM,
+ INDIC_POSITIONAL_CATEGORY_BOTTOM_AND_RIGHT,
+ INDIC_POSITIONAL_CATEGORY_LEFT,
+ INDIC_POSITIONAL_CATEGORY_LEFT_AND_RIGHT,
+ INDIC_POSITIONAL_CATEGORY_NOT_APPLICABLE,
+ INDIC_POSITIONAL_CATEGORY_OVERSTRUCK,
+ INDIC_POSITIONAL_CATEGORY_RIGHT,
+ INDIC_POSITIONAL_CATEGORY_TOP,
+ INDIC_POSITIONAL_CATEGORY_TOP_AND_BOTTOM,
+ INDIC_POSITIONAL_CATEGORY_TOP_AND_BOTTOM_AND_RIGHT,
+ INDIC_POSITIONAL_CATEGORY_TOP_AND_LEFT,
+ INDIC_POSITIONAL_CATEGORY_TOP_AND_LEFT_AND_RIGHT,
+ INDIC_POSITIONAL_CATEGORY_TOP_AND_RIGHT,
+ INDIC_POSITIONAL_CATEGORY_VISUAL_ORDER_LEFT,
+};
+
+/* Note: We use ASSERT_STATIC_EXPR_ZERO() instead of ASSERT_STATIC_EXPR() and the comma operation
+ * because gcc fails to optimize the latter and fills the table in at runtime. */
+#define USE_COMBINE_CATEGORIES(S,P) \
+ (ASSERT_STATIC_EXPR_ZERO (S < 255 && P < 255) + \
+ ((P << 8) | S))
+
+HB_INTERNAL USE_TABLE_ELEMENT_TYPE
+hb_use_get_categories (hb_codepoint_t u);
+
+#endif /* HB_OT_SHAPE_COMPLEX_USE_PRIVATE_HH */
projects / platform / upstream / libHarfBuzzSharp.git / commitdiff