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Diffstat (limited to 'modules/indic/indic-ot.h')
| -rw-r--r-- | modules/indic/indic-ot.h | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/modules/indic/indic-ot.h b/modules/indic/indic-ot.h deleted file mode 100644 index 47dd39f2..00000000 --- a/modules/indic/indic-ot.h +++ /dev/null @@ -1,238 +0,0 @@ -/* Pango - * indic-ot.h: - * - * Copyright (C) 2001, 2002 IBM Corporation. All Rights Reserved. - * Author: Eric Mader <mader@jtcsv.com> - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, - * modify, merge, publish, distribute, and/or sell copies of the - * Software, and to permit persons to whom the Software is furnished - * to do so, provided that the above copyright notice(s) and this - * permission notice appear in all copies of the Software and that - * both the above copyright notice(s) and this permission notice - * appear in supporting documentation. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE - * COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR - * ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY - * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - * - * Except as contained in this notice, the name of a copyright holder - * shall not be used in advertising or otherwise to promote the sale, - * use or other dealings in this Software without prior written - * authorization of the copyright holder. - */ - -#ifndef __INDIC_OT_H__ -#define __INDIC_OT_H__ - -#include <pango/pango-glyph.h> -#include <pango/pango-types.h> -#include "mprefixups.h" - -G_BEGIN_DECLS - -#ifdef PANGO_ENABLE_ENGINE - -/* Characters that get refered to by name... */ -#define C_SIGN_ZWNJ 0x200C -#define C_SIGN_ZWJ 0x200D -#define C_DOTTED_CIRCLE 0x25CC - -/* - * The characters that a split matra splits into. - * Unused characters will be zero. - */ -typedef gunichar IndicOTSplitMatra[3]; - -/* - * Character class values - */ -typedef enum -{ - CC_RESERVED, - CC_MODIFYING_MARK_ABOVE, - CC_MODIFYING_MARK_POST, - CC_INDEPENDENT_VOWEL, - CC_CONSONANT, - CC_CONSONANT_WITH_NUKTA, - CC_NUKTA, - CC_DEPENDENT_VOWEL, - CC_VIRAMA, - CC_ZERO_WIDTH_MARK, - CC_AL_LAKUNA, - CC_COUNT -} IndicOTCharClassValues; - -/* - * Character class flags - */ -#define CF_CLASS_MASK 0x0000FFFFU - -#define CF_CONSONANT 0x80000000U - -#define CF_REPH 0x40000000U -#define CF_VATTU 0x20000000U -#define CF_BELOW_BASE 0x10000000U -#define CF_POST_BASE 0x08000000U - -#define CF_MATRA_PRE 0x04000000U -#define CF_MATRA_BELOW 0x02000000U -#define CF_MATRA_ABOVE 0x01000000U -#define CF_MATRA_POST 0x00800000U -#define CF_LENGTH_MARK 0x00400000U - -#define CF_INDEX_MASK 0x000F0000U -#define CF_INDEX_SHIFT 16 - -/* - * Character class: a character class value - * ORed with character class flags. - */ -typedef glong IndicOTCharClass; - -/* - * Script flags - */ -#define SF_MATRAS_AFTER_BASE 0x80000000U -#define SF_REPH_AFTER_BELOW 0x40000000U -#define SF_EYELASH_RA 0x20000000U -#define SF_MPRE_FIXUP 0x10000000U -#define SF_PROCESS_ZWJ 0x08000000U - -#define SF_POST_BASE_LIMIT_MASK 0x0000FFFFU -#define SF_NO_POST_BASE_LIMIT 0x00007FFFU - -typedef guint32 IndicOTScriptFlags; - -/* - * Bit flags for the indic feature tags - */ -enum indic_glyph_feature_ -{ - nukt = 0x0001, - akhn = 0x0002, - rphf = 0x0004, - blwf = 0x0008, - half = 0x0010, - pstf = 0x0020, - vatu = 0x0040, - pres = 0x0080, - blws = 0x0100, - abvs = 0x0200, - psts = 0x0400, - haln = 0x0800, - blwm = 0x1000, - abvm = 0x2000, - dist = 0x4000, - junk = 0x8000, - init = 0x10000 -}; - -/* - * Complement of the feature flags that - * will be assigned to specific glyphs. - * - * The names come from the ICU implementation, - * which listed the actual tags in an order - * such that tags could be assigned using the - * address of the first one: &tags[0], &tags[1], - * &tags[2], &tags[3]. The name of each set here - * is the name of the first tag in the ICU list. - */ -enum indic_glyph_property_ -{ - rphf_p = (junk | dist | init), - blwf_p = (junk | dist | init | rphf), - half_p = (junk | dist | init | rphf | blwf), - pstf_p = (junk | dist | init | rphf | blwf | half), - nukt_p = (junk | dist | init | rphf | blwf | half | pstf) -}; - -/* - * Macros to test the charClass flags for various things. - */ -#define IS_VM_ABOVE(charClass) ((charClass & CF_CLASS_MASK) == CC_MODIFYING_MARK_ABOVE) -#define IS_VM_POST(charClass) ((charClass & CF_CLASS_MASK) == CC_MODIFYING_MARK_POST) -#define IS_CONSONANT(charClass) ((charClass & CF_CONSONANT) != 0) -#define IS_REPH(charClass) ((charClass & CF_REPH) != 0) -#define IS_NUKTA(charClass) ((charClass & CF_CLASS_MASK) == CC_NUKTA) -#define IS_VIRAMA(charClass) ((charClass & CF_CLASS_MASK) == CC_VIRAMA) -#define IS_AL_LAKUNA(charClass) ((charClass & CF_CLASS_MASK) == CC_AL_LAKUNA) -#define IS_VATTU(charClass) ((charClass & CF_VATTU) != 0) -#define IS_MATRA(charClass) ((charClass & CF_CLASS_MASK) == CC_DEPENDENT_VOWEL) -#define IS_SPLIT_MATRA(charClass) ((charClass & CF_INDEX_MASK) != 0) -#define IS_M_PRE(charClass) ((charClass & CF_MATRA_PRE) != 0) -#define IS_M_BELOW(charClass) ((charClass & CF_MATRA_BELOW) != 0) -#define IS_M_ABOVE(charClass) ((charClass & CF_MATRA_ABOVE) != 0) -#define IS_M_POST(charClass) ((charClass & CF_MATRA_POST) != 0) -#define IS_LENGTH_MARK(charClass) ((charClass & CF_LENGTH_MARK) != 0) -#define HAS_POST_OR_BELOW_BASE_FORM(charClass) ((charClass & (CF_POST_BASE | CF_BELOW_BASE)) != 0) -#define HAS_POST_BASE_FORM(charClass) ((charClass & CF_POST_BASE) != 0) -#define HAS_BELOW_BASE_FORM(charClass) ((charClass & CF_BELOW_BASE) != 0) - -struct _IndicOTClassTable -{ - gunichar firstChar; - gunichar lastChar; - glong worstCaseExpansion; - IndicOTScriptFlags scriptFlags; - - const IndicOTCharClass *charClasses; - const IndicOTSplitMatra *splitMatraTable; -}; - -typedef struct _IndicOTClassTable IndicOTClassTable; - -extern const IndicOTClassTable deva_class_table; -extern const IndicOTClassTable beng_class_table; -extern const IndicOTClassTable guru_class_table; -extern const IndicOTClassTable gujr_class_table; -extern const IndicOTClassTable orya_class_table; -extern const IndicOTClassTable taml_class_table; -extern const IndicOTClassTable telu_class_table; -extern const IndicOTClassTable knda_class_table; -extern const IndicOTClassTable mlym_class_table; -extern const IndicOTClassTable sinh_class_table; - -const IndicOTSplitMatra *indic_ot_get_split_matra(const IndicOTClassTable *class_table, IndicOTCharClass char_class); - -IndicOTCharClass indic_ot_get_char_class(const IndicOTClassTable *class_table, gunichar ch); - -gboolean indic_ot_is_vm_above(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_vm_post(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_consonant(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_reph(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_virama(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_al_lakuna(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_nukta(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_vattu(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_matra(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_split_matra(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_m_pre(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_m_below(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_m_above(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_m_post(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_is_length_mark(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_has_post_or_below_base_form(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_has_post_base_form(const IndicOTClassTable *class_table, gunichar ch); -gboolean indic_ot_has_below_base_form(const IndicOTClassTable *class_table, gunichar ch); - -glong indic_ot_find_syllable(const IndicOTClassTable *class_table, const gunichar *chars, glong prev, glong char_count); - -glong indic_ot_reorder(const gunichar *chars, const glong *utf8_offsets, glong char_count, const IndicOTClassTable *class_table, gunichar *out_chars, glong *char_indices, gulong *char_tags, MPreFixups **outMPreFixups); - -#endif /* PANGO_ENABLE_ENGINE */ - -G_END_DECLS - -#endif /* __INDIC_OT_H__ */ |