chromium/third_party/harfbuzz-ng/src/src/hb-icu.cc

/*
 * Copyright © 2009  Red Hat, Inc.
 * Copyright © 2009  Keith Stribley
 * Copyright © 2011  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.
 *
 * Red Hat Author(s): Behdad Esfahbod
 * Google Author(s): Behdad Esfahbod
 */

#include "hb.hh"

#ifdef HAVE_ICU

#include "hb-icu.h"

#include "hb-machinery.hh"

#include <unicode/uchar.h>
#include <unicode/unorm2.h>
#include <unicode/ustring.h>
#include <unicode/utf16.h>
#include <unicode/uversion.h>

/* ICU extra semicolon, fixed since 65, https://github.com/unicode-org/icu/commit/480bec3 */
#if U_ICU_VERSION_MAJOR_NUM < 65 && (defined(__GNUC__) || defined(__clang__))
#define HB_ICU_EXTRA_SEMI_IGNORED
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wextra-semi-stmt"
#endif

/**
 * SECTION:hb-icu
 * @title: hb-icu
 * @short_description: ICU integration
 * @include: hb-icu.h
 *
 * Functions for using HarfBuzz with the International Components for Unicode
 * (ICU) library. HarfBuzz supports using ICU to provide Unicode data, by attaching
 * ICU functions to the virtual methods in a #hb_unicode_funcs_t function
 * structure.
 **/

/**
 * hb_icu_script_to_script:
 * @script: The UScriptCode identifier to query
 *
 * Fetches the #hb_script_t script that corresponds to the
 * specified UScriptCode identifier.
 *
 * Return value: the #hb_script_t script found
 *
 **/

hb_script_t
hb_icu_script_to_script (UScriptCode script)
{ … }

/**
 * hb_icu_script_from_script:
 * @script: The #hb_script_t script to query
 *
 * Fetches the UScriptCode identifier that corresponds to the
 * specified #hb_script_t script.
 *
 * Return value: the UScriptCode identifier found
 *
 **/
UScriptCode
hb_icu_script_from_script (hb_script_t script)
{ … }


static hb_unicode_combining_class_t
hb_icu_unicode_combining_class (hb_unicode_funcs_t *ufuncs HB_UNUSED,
				hb_codepoint_t      unicode,
				void               *user_data HB_UNUSED)

{ … }

static hb_unicode_general_category_t
hb_icu_unicode_general_category (hb_unicode_funcs_t *ufuncs HB_UNUSED,
				 hb_codepoint_t      unicode,
				 void               *user_data HB_UNUSED)
{ … }

static hb_codepoint_t
hb_icu_unicode_mirroring (hb_unicode_funcs_t *ufuncs HB_UNUSED,
			  hb_codepoint_t      unicode,
			  void               *user_data HB_UNUSED)
{ … }

static hb_script_t
hb_icu_unicode_script (hb_unicode_funcs_t *ufuncs HB_UNUSED,
		       hb_codepoint_t      unicode,
		       void               *user_data HB_UNUSED)
{ … }

static hb_bool_t
hb_icu_unicode_compose (hb_unicode_funcs_t *ufuncs HB_UNUSED,
			hb_codepoint_t      a,
			hb_codepoint_t      b,
			hb_codepoint_t     *ab,
			void               *user_data)
{ … }

static hb_bool_t
hb_icu_unicode_decompose (hb_unicode_funcs_t *ufuncs HB_UNUSED,
			  hb_codepoint_t      ab,
			  hb_codepoint_t     *a,
			  hb_codepoint_t     *b,
			  void               *user_data)
{ … }


static inline void free_static_icu_funcs ();

static struct hb_icu_unicode_funcs_lazy_loader_t : hb_unicode_funcs_lazy_loader_t<hb_icu_unicode_funcs_lazy_loader_t>
{ … } static_icu_funcs;

static inline
void free_static_icu_funcs ()
{ … }

/**
 * hb_icu_get_unicode_funcs:
 *
 * Fetches a Unicode-functions structure that is populated
 * with the appropriate ICU function for each method.
 *
 * Return value: (transfer none): a pointer to the #hb_unicode_funcs_t Unicode-functions structure
 *
 * Since: 0.9.38
 **/
hb_unicode_funcs_t *
hb_icu_get_unicode_funcs ()
{ … }

#ifdef HB_ICU_EXTRA_SEMI_IGNORED
#pragma GCC diagnostic pop
#endif

#endif