/* * Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies) * * This is part of HarfBuzz, an OpenType Layout engine 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. */ #include "harfbuzz-shaper.h" #include "harfbuzz-shaper-private.h" #include #include enum MymrCharClassValues { Mymr_CC_RESERVED = 0, Mymr_CC_CONSONANT = 1, /* Consonant of type 1, that has subscript form */ Mymr_CC_CONSONANT2 = 2, /* Consonant of type 2, that has no subscript form */ Mymr_CC_NGA = 3, /* Consonant NGA */ Mymr_CC_YA = 4, /* Consonant YA */ Mymr_CC_RA = 5, /* Consonant RA */ Mymr_CC_WA = 6, /* Consonant WA */ Mymr_CC_HA = 7, /* Consonant HA */ Mymr_CC_IND_VOWEL = 8, /* Independent vowel */ Mymr_CC_ZERO_WIDTH_NJ_MARK = 9, /* Zero Width non joiner character (0x200C) */ Mymr_CC_VIRAMA = 10, /* Subscript consonant combining character */ Mymr_CC_PRE_VOWEL = 11, /* Dependent vowel, prebase (Vowel e) */ Mymr_CC_BELOW_VOWEL = 12, /* Dependent vowel, prebase (Vowel u, uu) */ Mymr_CC_ABOVE_VOWEL = 13, /* Dependent vowel, prebase (Vowel i, ii, ai) */ Mymr_CC_POST_VOWEL = 14, /* Dependent vowel, prebase (Vowel aa) */ Mymr_CC_SIGN_ABOVE = 15, Mymr_CC_SIGN_BELOW = 16, Mymr_CC_SIGN_AFTER = 17, Mymr_CC_ZERO_WIDTH_J_MARK = 18, /* Zero width joiner character */ Mymr_CC_COUNT = 19 /* This is the number of character classes */ }; enum MymrCharClassFlags { Mymr_CF_CLASS_MASK = 0x0000FFFF, Mymr_CF_CONSONANT = 0x01000000, /* flag to speed up comparing */ Mymr_CF_MEDIAL = 0x02000000, /* flag to speed up comparing */ Mymr_CF_IND_VOWEL = 0x04000000, /* flag to speed up comparing */ Mymr_CF_DEP_VOWEL = 0x08000000, /* flag to speed up comparing */ Mymr_CF_DOTTED_CIRCLE = 0x10000000, /* add a dotted circle if a character with this flag is the first in a syllable */ Mymr_CF_VIRAMA = 0x20000000, /* flag to speed up comparing */ /* position flags */ Mymr_CF_POS_BEFORE = 0x00080000, Mymr_CF_POS_BELOW = 0x00040000, Mymr_CF_POS_ABOVE = 0x00020000, Mymr_CF_POS_AFTER = 0x00010000, Mymr_CF_POS_MASK = 0x000f0000, Mymr_CF_AFTER_KINZI = 0x00100000 }; /* Characters that get refrered to by name */ enum MymrChar { Mymr_C_SIGN_ZWNJ = 0x200C, Mymr_C_SIGN_ZWJ = 0x200D, Mymr_C_DOTTED_CIRCLE = 0x25CC, Mymr_C_RA = 0x101B, Mymr_C_YA = 0x101A, Mymr_C_NGA = 0x1004, Mymr_C_VOWEL_E = 0x1031, Mymr_C_VIRAMA = 0x1039 }; enum { Mymr_xx = Mymr_CC_RESERVED, Mymr_c1 = Mymr_CC_CONSONANT | Mymr_CF_CONSONANT | Mymr_CF_POS_BELOW, Mymr_c2 = Mymr_CC_CONSONANT2 | Mymr_CF_CONSONANT, Mymr_ng = Mymr_CC_NGA | Mymr_CF_CONSONANT | Mymr_CF_POS_ABOVE, Mymr_ya = Mymr_CC_YA | Mymr_CF_CONSONANT | Mymr_CF_MEDIAL | Mymr_CF_POS_AFTER | Mymr_CF_AFTER_KINZI, Mymr_ra = Mymr_CC_RA | Mymr_CF_CONSONANT | Mymr_CF_MEDIAL | Mymr_CF_POS_BEFORE, Mymr_wa = Mymr_CC_WA | Mymr_CF_CONSONANT | Mymr_CF_MEDIAL | Mymr_CF_POS_BELOW, Mymr_ha = Mymr_CC_HA | Mymr_CF_CONSONANT | Mymr_CF_MEDIAL | Mymr_CF_POS_BELOW, Mymr_id = Mymr_CC_IND_VOWEL | Mymr_CF_IND_VOWEL, Mymr_vi = Mymr_CC_VIRAMA | Mymr_CF_VIRAMA | Mymr_CF_POS_ABOVE | Mymr_CF_DOTTED_CIRCLE, Mymr_dl = Mymr_CC_PRE_VOWEL | Mymr_CF_DEP_VOWEL | Mymr_CF_POS_BEFORE | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI, Mymr_db = Mymr_CC_BELOW_VOWEL | Mymr_CF_DEP_VOWEL | Mymr_CF_POS_BELOW | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI, Mymr_da = Mymr_CC_ABOVE_VOWEL | Mymr_CF_DEP_VOWEL | Mymr_CF_POS_ABOVE | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI, Mymr_dr = Mymr_CC_POST_VOWEL | Mymr_CF_DEP_VOWEL | Mymr_CF_POS_AFTER | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI, Mymr_sa = Mymr_CC_SIGN_ABOVE | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_POS_ABOVE | Mymr_CF_AFTER_KINZI, Mymr_sb = Mymr_CC_SIGN_BELOW | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_POS_BELOW | Mymr_CF_AFTER_KINZI, Mymr_sp = Mymr_CC_SIGN_AFTER | Mymr_CF_DOTTED_CIRCLE | Mymr_CF_AFTER_KINZI }; typedef int MymrCharClass; static const MymrCharClass mymrCharClasses[] = { Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_ng, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c2, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, /* 1000 - 100F */ Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_c1, Mymr_ya, Mymr_ra, Mymr_c1, Mymr_wa, Mymr_c1, Mymr_ha, /* 1010 - 101F */ Mymr_c2, Mymr_c2, Mymr_xx, Mymr_id, Mymr_id, Mymr_id, Mymr_id, Mymr_id, Mymr_xx, Mymr_id, Mymr_id, Mymr_xx, Mymr_dr, Mymr_da, Mymr_da, Mymr_db, /* 1020 - 102F */ Mymr_db, Mymr_dl, Mymr_da, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_sa, Mymr_sb, Mymr_sp, Mymr_vi, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, /* 1030 - 103F */ Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, /* 1040 - 104F */ Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, Mymr_xx, /* 1050 - 105F */ }; static MymrCharClass getMyanmarCharClass (HB_UChar16 ch) { if (ch == Mymr_C_SIGN_ZWJ) return Mymr_CC_ZERO_WIDTH_J_MARK; if (ch == Mymr_C_SIGN_ZWNJ) return Mymr_CC_ZERO_WIDTH_NJ_MARK; if (ch < 0x1000 || ch > 0x105f) return Mymr_CC_RESERVED; return mymrCharClasses[ch - 0x1000]; } static const signed char mymrStateTable[][Mymr_CC_COUNT] = { /* xx c1, c2 ng ya ra wa ha id zwnj vi dl db da dr sa sb sp zwj */ { 1, 4, 4, 2, 4, 4, 4, 4, 24, 1, 27, 17, 18, 19, 20, 21, 1, 1, 4}, /* 0 - ground state */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 1 - exit state (or sp to the right of the syllable) */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 3, 17, 18, 19, 20, 21, -1, -1, 4}, /* 2 - NGA */ {-1, 4, 4, 4, 4, 4, 4, 4, -1, 23, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 3 - Virama after NGA */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 5, 17, 18, 19, 20, 21, 1, 1, -1}, /* 4 - Base consonant */ {-2, 6, -2, -2, 7, 8, 9, 10, -2, 23, -2, -2, -2, -2, -2, -2, -2, -2, -2}, /* 5 - First virama */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 25, 17, 18, 19, 20, 21, -1, -1, -1}, /* 6 - c1 after virama */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 12, 17, 18, 19, 20, 21, -1, -1, -1}, /* 7 - ya after virama */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 12, 17, 18, 19, 20, 21, -1, -1, -1}, /* 8 - ra after virama */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 12, 17, 18, 19, 20, 21, -1, -1, -1}, /* 9 - wa after virama */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 17, 18, 19, 20, 21, -1, -1, -1}, /* 10 - ha after virama */ {-1, -1, -1, -1, 7, 8, 9, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 11 - Virama after NGA+zwj */ {-2, -2, -2, -2, -2, -2, 13, 14, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2}, /* 12 - Second virama */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 15, 17, 18, 19, 20, 21, -1, -1, -1}, /* 13 - wa after virama */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 17, 18, 19, 20, 21, -1, -1, -1}, /* 14 - ha after virama */ {-2, -2, -2, -2, -2, -2, -2, 16, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2}, /* 15 - Third virama */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 17, 18, 19, 20, 21, -1, -1, -1}, /* 16 - ha after virama */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 20, 21, 1, 1, -1}, /* 17 - dl, Dependent vowel e */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 19, -1, 21, 1, 1, -1}, /* 18 - db, Dependent vowel u,uu */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, 1, -1}, /* 19 - da, Dependent vowel i,ii,ai */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 22, -1, -1, -1, -1, -1, 1, 1, -1}, /* 20 - dr, Dependent vowel aa */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1}, /* 21 - sa, Sign anusvara */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, 23, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 22 - atha */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1}, /* 23 - zwnj for atha */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, -1}, /* 24 - Independent vowel */ {-2, -2, -2, -2, 26, 26, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2}, /* 25 - Virama after subscript consonant */ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 12, 17, 18, 19, 20, 21, -1, 1, -1}, /* 26 - ra/ya after subscript consonant + virama */ {-1, 6, -1, -1, 7, 8, 9, 10, -1, 23, -1, -1, -1, -1, -1, -1, -1, -1, -1}, /* 27 - Virama after ground state */ /* exit state -2 is for invalid order of medials and combination of invalids with virama where virama should treat as start of next syllable */ }; /*#define MYANMAR_DEBUG */ #ifdef MYANMAR_DEBUG #define MMDEBUG qDebug #else #define MMDEBUG if(0) printf #endif /* // Given an input string of characters and a location in which to start looking // calculate, using the state table, which one is the last character of the syllable // that starts in the starting position. */ static int myanmar_nextSyllableBoundary(const HB_UChar16 *s, int start, int end, HB_Bool *invalid) { const HB_UChar16 *uc = s + start; int state = 0; int pos = start; *invalid = FALSE; while (pos < end) { MymrCharClass charClass = getMyanmarCharClass(*uc); state = mymrStateTable[state][charClass & Mymr_CF_CLASS_MASK]; if (pos == start) *invalid = (HB_Bool)(charClass & Mymr_CF_DOTTED_CIRCLE); MMDEBUG("state[%d]=%d class=%8x (uc=%4x)", pos - start, state, charClass, *uc); if (state < 0) { if (state < -1) --pos; break; } ++uc; ++pos; } return pos; } #ifndef NO_OPENTYPE /* ###### might have to change order of above and below forms and substitutions, but according to Unicode below comes before above */ static const HB_OpenTypeFeature myanmar_features[] = { { HB_MAKE_TAG('p', 'r', 'e', 'f'), PreFormProperty }, { HB_MAKE_TAG('b', 'l', 'w', 'f'), BelowFormProperty }, { HB_MAKE_TAG('a', 'b', 'v', 'f'), AboveFormProperty }, { HB_MAKE_TAG('p', 's', 't', 'f'), PostFormProperty }, { HB_MAKE_TAG('p', 'r', 'e', 's'), PreSubstProperty }, { HB_MAKE_TAG('b', 'l', 'w', 's'), BelowSubstProperty }, { HB_MAKE_TAG('a', 'b', 'v', 's'), AboveSubstProperty }, { HB_MAKE_TAG('p', 's', 't', 's'), PostSubstProperty }, { HB_MAKE_TAG('r', 'l', 'i', 'g'), CligProperty }, /* Myanmar1 uses this instead of the other features */ { 0, 0 } }; #endif /* // Visual order before shaping should be: // // [Vowel Mark E] // [Virama + Medial Ra] // [Base] // [Virama + Consonant] // [Nga + Virama] (Kinzi) ### should probably come before post forms (medial ya) // [Vowels] // [Marks] // // This means that we can keep the logical order apart from having to // move the pre vowel, medial ra and kinzi */ static HB_Bool myanmar_shape_syllable(HB_Bool openType, HB_ShaperItem *item, HB_Bool invalid) { /* // MMDEBUG("\nsyllable from %d len %d, str='%s'", item->item.pos, item->item.length, // item->string->mid(item->from, item->length).toUtf8().data()); */ #ifndef NO_OPENTYPE const int availableGlyphs = item->num_glyphs; #endif const HB_UChar16 *uc = item->string + item->item.pos; int vowel_e = -1; int kinzi = -1; int medial_ra = -1; int base = -1; int i; int len = 0; unsigned short reordered[32]; unsigned char properties[32]; enum { AboveForm = 0x01, PreForm = 0x02, PostForm = 0x04, BelowForm = 0x08 }; HB_Bool lastWasVirama = FALSE; int basePos = -1; memset(properties, 0, 32*sizeof(unsigned char)); /* according to the table the max length of a syllable should be around 14 chars */ assert(item->item.length < 32); #ifdef MYANMAR_DEBUG printf("original:"); for (i = 0; i < (int)item->item.length; i++) { printf(" %d: %4x", i, uc[i]); } #endif for (i = 0; i < (int)item->item.length; ++i) { HB_UChar16 chr = uc[i]; if (chr == Mymr_C_VOWEL_E) { vowel_e = i; continue; } if (i == 0 && chr == Mymr_C_NGA && i + 2 < (int)item->item.length && uc[i+1] == Mymr_C_VIRAMA) { int mc = getMyanmarCharClass(uc[i+2]); /*MMDEBUG("maybe kinzi: mc=%x", mc);*/ if ((mc & Mymr_CF_CONSONANT) == Mymr_CF_CONSONANT) { kinzi = i; continue; } } if (base >= 0 && chr == Mymr_C_VIRAMA && i + 1 < (int)item->item.length && uc[i+1] == Mymr_C_RA) { medial_ra = i; continue; } if (base < 0) base = i; } MMDEBUG("\n base=%d, vowel_e=%d, kinzi=%d, medial_ra=%d", base, vowel_e, kinzi, medial_ra); /* write vowel_e if found */ if (vowel_e >= 0) { reordered[0] = Mymr_C_VOWEL_E; len = 1; } /* write medial_ra */ if (medial_ra >= 0) { reordered[len] = Mymr_C_VIRAMA; reordered[len+1] = Mymr_C_RA; properties[len] = PreForm; properties[len+1] = PreForm; len += 2; } /* shall we add a dotted circle? If in the position in which the base should be (first char in the string) there is a character that has the Dotted circle flag (a character that cannot be a base) then write a dotted circle */ if (invalid) { reordered[len] = C_DOTTED_CIRCLE; ++len; } /* copy the rest of the syllable to the output, inserting the kinzi at the correct place */ for (i = 0; i < (int)item->item.length; ++i) { hb_uint16 chr = uc[i]; MymrCharClass cc; if (i == vowel_e) continue; if (i == medial_ra || i == kinzi) { ++i; continue; } cc = getMyanmarCharClass(uc[i]); if (kinzi >= 0 && i > base && (cc & Mymr_CF_AFTER_KINZI)) { reordered[len] = Mymr_C_NGA; reordered[len+1] = Mymr_C_VIRAMA; if (len > 0) properties[len-1] = AboveForm; properties[len] = AboveForm; len += 2; kinzi = -1; } if (lastWasVirama) { int prop = 0; switch(cc & Mymr_CF_POS_MASK) { case Mymr_CF_POS_BEFORE: prop = PreForm; break; case Mymr_CF_POS_BELOW: prop = BelowForm; break; case Mymr_CF_POS_ABOVE: prop = AboveForm; break; case Mymr_CF_POS_AFTER: prop = PostForm; break; default: break; } properties[len-1] = prop; properties[len] = prop; if(basePos >= 0 && basePos == len-2) properties[len-2] = prop; } lastWasVirama = (chr == Mymr_C_VIRAMA); if(i == base) basePos = len; if ((chr != Mymr_C_SIGN_ZWNJ && chr != Mymr_C_SIGN_ZWJ) || !len) { reordered[len] = chr; ++len; } } if (kinzi >= 0) { reordered[len] = Mymr_C_NGA; reordered[len+1] = Mymr_C_VIRAMA; properties[len] = AboveForm; properties[len+1] = AboveForm; len += 2; } if (!item->font->klass->convertStringToGlyphIndices(item->font, reordered, len, item->glyphs, &item->num_glyphs, item->item.bidiLevel % 2)) return FALSE; MMDEBUG("after shaping: len=%d", len); for (i = 0; i < len; i++) { item->attributes[i].mark = FALSE; item->attributes[i].clusterStart = FALSE; item->attributes[i].justification = 0; item->attributes[i].zeroWidth = FALSE; MMDEBUG(" %d: %4x property=%x", i, reordered[i], properties[i]); } /* now we have the syllable in the right order, and can start running it through open type. */ #ifndef NO_OPENTYPE if (openType) { hb_uint32 where[32]; for (i = 0; i < len; ++i) { where[i] = ~(PreSubstProperty | BelowSubstProperty | AboveSubstProperty | PostSubstProperty | CligProperty | PositioningProperties); if (properties[i] & PreForm) where[i] &= ~PreFormProperty; if (properties[i] & BelowForm) where[i] &= ~BelowFormProperty; if (properties[i] & AboveForm) where[i] &= ~AboveFormProperty; if (properties[i] & PostForm) where[i] &= ~PostFormProperty; } HB_OpenTypeShape(item, where); if (!HB_OpenTypePosition(item, availableGlyphs, /*doLogClusters*/FALSE)) return FALSE; } else #endif { MMDEBUG("Not using openType"); HB_HeuristicPosition(item); } item->attributes[0].clusterStart = TRUE; return TRUE; } HB_Bool HB_MyanmarShape(HB_ShaperItem *item) { HB_Bool openType = FALSE; unsigned short *logClusters = item->log_clusters; HB_ShaperItem syllable = *item; int first_glyph = 0; int sstart = item->item.pos; int end = sstart + item->item.length; int i = 0; assert(item->item.script == HB_Script_Myanmar); #ifndef NO_OPENTYPE openType = HB_SelectScript(item, myanmar_features); #endif MMDEBUG("myanmar_shape: from %d length %d", item->item.pos, item->item.length); while (sstart < end) { HB_Bool invalid; int send = myanmar_nextSyllableBoundary(item->string, sstart, end, &invalid); MMDEBUG("syllable from %d, length %d, invalid=%s", sstart, send-sstart, invalid ? "TRUE" : "FALSE"); syllable.item.pos = sstart; syllable.item.length = send-sstart; syllable.glyphs = item->glyphs + first_glyph; syllable.attributes = item->attributes + first_glyph; syllable.advances = item->advances + first_glyph; syllable.offsets = item->offsets + first_glyph; syllable.num_glyphs = item->num_glyphs - first_glyph; if (!myanmar_shape_syllable(openType, &syllable, invalid)) { MMDEBUG("syllable shaping failed, syllable requests %d glyphs", syllable.num_glyphs); item->num_glyphs += syllable.num_glyphs; return FALSE; } /* fix logcluster array */ MMDEBUG("syllable:"); for (i = first_glyph; i < first_glyph + (int)syllable.num_glyphs; ++i) MMDEBUG(" %d -> glyph %x", i, item->glyphs[i]); MMDEBUG(" logclusters:"); for (i = sstart; i < send; ++i) { MMDEBUG(" %d -> glyph %d", i, first_glyph); logClusters[i-item->item.pos] = first_glyph; } sstart = send; first_glyph += syllable.num_glyphs; } item->num_glyphs = first_glyph; return TRUE; } void HB_MyanmarAttributes(HB_Script script, const HB_UChar16 *text, hb_uint32 from, hb_uint32 len, HB_CharAttributes *attributes) { int end = from + len; const HB_UChar16 *uc = text + from; hb_uint32 i = 0; HB_UNUSED(script); attributes += from; while (i < len) { HB_Bool invalid; hb_uint32 boundary = myanmar_nextSyllableBoundary(text, from+i, end, &invalid) - from; attributes[i].graphemeBoundary = TRUE; attributes[i].lineBreak = TRUE; if (boundary > len-1) boundary = len; i++; while (i < boundary) { attributes[i].graphemeBoundary = FALSE; ++uc; ++i; } assert(i == boundary); } }