From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- gfx/harfbuzz/src/hb-set.cc | 673 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 673 insertions(+) create mode 100644 gfx/harfbuzz/src/hb-set.cc (limited to 'gfx/harfbuzz/src/hb-set.cc') diff --git a/gfx/harfbuzz/src/hb-set.cc b/gfx/harfbuzz/src/hb-set.cc new file mode 100644 index 0000000000..97caddb226 --- /dev/null +++ b/gfx/harfbuzz/src/hb-set.cc @@ -0,0 +1,673 @@ +/* + * Copyright © 2012 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 + */ + +#include "hb-set.hh" + + +/** + * SECTION:hb-set + * @title: hb-set + * @short_description: Objects representing a set of integers + * @include: hb.h + * + * Set objects represent a mathematical set of integer values. They are + * used in non-shaping APIs to query certain sets of characters or glyphs, + * or other integer values. + **/ + + +/** + * hb_set_create: + * + * Creates a new, initially empty set. + * + * Return value: (transfer full): The new #hb_set_t + * + * Since: 0.9.2 + **/ +hb_set_t * +hb_set_create () +{ + hb_set_t *set; + + if (!(set = hb_object_create ())) + return hb_set_get_empty (); + + return set; +} + +/** + * hb_set_get_empty: + * + * Fetches the singleton empty #hb_set_t. + * + * Return value: (transfer full): The empty #hb_set_t + * + * Since: 0.9.2 + **/ +hb_set_t * +hb_set_get_empty () +{ + return const_cast (&Null (hb_set_t)); +} + +/** + * hb_set_reference: (skip) + * @set: A set + * + * Increases the reference count on a set. + * + * Return value: (transfer full): The set + * + * Since: 0.9.2 + **/ +hb_set_t * +hb_set_reference (hb_set_t *set) +{ + return hb_object_reference (set); +} + +/** + * hb_set_destroy: (skip) + * @set: A set + * + * Decreases the reference count on a set. When + * the reference count reaches zero, the set is + * destroyed, freeing all memory. + * + * Since: 0.9.2 + **/ +void +hb_set_destroy (hb_set_t *set) +{ + if (!hb_object_destroy (set)) return; + + hb_free (set); +} + +/** + * hb_set_set_user_data: (skip) + * @set: A set + * @key: The user-data key to set + * @data: A pointer to the user data to set + * @destroy: (nullable): A callback to call when @data is not needed anymore + * @replace: Whether to replace an existing data with the same key + * + * Attaches a user-data key/data pair to the specified set. + * + * Return value: `true` if success, `false` otherwise + * + * Since: 0.9.2 + **/ +hb_bool_t +hb_set_set_user_data (hb_set_t *set, + hb_user_data_key_t *key, + void * data, + hb_destroy_func_t destroy, + hb_bool_t replace) +{ + return hb_object_set_user_data (set, key, data, destroy, replace); +} + +/** + * hb_set_get_user_data: (skip) + * @set: A set + * @key: The user-data key to query + * + * Fetches the user data associated with the specified key, + * attached to the specified set. + * + * Return value: (transfer none): A pointer to the user data + * + * Since: 0.9.2 + **/ +void * +hb_set_get_user_data (const hb_set_t *set, + hb_user_data_key_t *key) +{ + return hb_object_get_user_data (set, key); +} + + +/** + * hb_set_allocation_successful: + * @set: A set + * + * Tests whether memory allocation for a set was successful. + * + * Return value: `true` if allocation succeeded, `false` otherwise + * + * Since: 0.9.2 + **/ +hb_bool_t +hb_set_allocation_successful (const hb_set_t *set) +{ + return !set->in_error (); +} + +/** + * hb_set_copy: + * @set: A set + * + * Allocate a copy of @set. + * + * Return value: (transfer full): Newly-allocated set. + * + * Since: 2.8.2 + **/ +hb_set_t * +hb_set_copy (const hb_set_t *set) +{ + hb_set_t *copy = hb_set_create (); + if (unlikely (copy->in_error ())) + return hb_set_get_empty (); + + copy->set (*set); + return copy; +} + +/** + * hb_set_clear: + * @set: A set + * + * Clears out the contents of a set. + * + * Since: 0.9.2 + **/ +void +hb_set_clear (hb_set_t *set) +{ + /* Immutible-safe. */ + set->clear (); +} + +/** + * hb_set_is_empty: + * @set: a set. + * + * Tests whether a set is empty (contains no elements). + * + * Return value: `true` if @set is empty + * + * Since: 0.9.7 + **/ +hb_bool_t +hb_set_is_empty (const hb_set_t *set) +{ + return set->is_empty (); +} + +/** + * hb_set_has: + * @set: A set + * @codepoint: The element to query + * + * Tests whether @codepoint belongs to @set. + * + * Return value: `true` if @codepoint is in @set, `false` otherwise + * + * Since: 0.9.2 + **/ +hb_bool_t +hb_set_has (const hb_set_t *set, + hb_codepoint_t codepoint) +{ + return set->has (codepoint); +} + +/** + * hb_set_add: + * @set: A set + * @codepoint: The element to add to @set + * + * Adds @codepoint to @set. + * + * Since: 0.9.2 + **/ +void +hb_set_add (hb_set_t *set, + hb_codepoint_t codepoint) +{ + /* Immutible-safe. */ + set->add (codepoint); +} + +/** + * hb_set_add_sorted_array: + * @set: A set + * @sorted_codepoints: (array length=num_codepoints): Array of codepoints to add + * @num_codepoints: Length of @sorted_codepoints + * + * Adds @num_codepoints codepoints to a set at once. + * The codepoints array must be in increasing order, + * with size at least @num_codepoints. + * + * Since: 4.1.0 + */ +HB_EXTERN void +hb_set_add_sorted_array (hb_set_t *set, + const hb_codepoint_t *sorted_codepoints, + unsigned int num_codepoints) +{ + /* Immutible-safe. */ + set->add_sorted_array (sorted_codepoints, + num_codepoints, + sizeof(hb_codepoint_t)); +} + +/** + * hb_set_add_range: + * @set: A set + * @first: The first element to add to @set + * @last: The final element to add to @set + * + * Adds all of the elements from @first to @last + * (inclusive) to @set. + * + * Since: 0.9.7 + **/ +void +hb_set_add_range (hb_set_t *set, + hb_codepoint_t first, + hb_codepoint_t last) +{ + /* Immutible-safe. */ + set->add_range (first, last); +} + +/** + * hb_set_del: + * @set: A set + * @codepoint: Removes @codepoint from @set + * + * Removes @codepoint from @set. + * + * Since: 0.9.2 + **/ +void +hb_set_del (hb_set_t *set, + hb_codepoint_t codepoint) +{ + /* Immutible-safe. */ + set->del (codepoint); +} + +/** + * hb_set_del_range: + * @set: A set + * @first: The first element to remove from @set + * @last: The final element to remove from @set + * + * Removes all of the elements from @first to @last + * (inclusive) from @set. + * + * If @last is #HB_SET_VALUE_INVALID, then all values + * greater than or equal to @first are removed. + * + * Since: 0.9.7 + **/ +void +hb_set_del_range (hb_set_t *set, + hb_codepoint_t first, + hb_codepoint_t last) +{ + /* Immutible-safe. */ + set->del_range (first, last); +} + +/** + * hb_set_is_equal: + * @set: A set + * @other: Another set + * + * Tests whether @set and @other are equal (contain the same + * elements). + * + * Return value: `true` if the two sets are equal, `false` otherwise. + * + * Since: 0.9.7 + **/ +hb_bool_t +hb_set_is_equal (const hb_set_t *set, + const hb_set_t *other) +{ + return set->is_equal (*other); +} + +/** + * hb_set_hash: + * @set: A set + * + * Creates a hash representing @set. + * + * Return value: + * A hash of @set. + * + * Since: 4.4.0 + **/ +HB_EXTERN unsigned int +hb_set_hash (const hb_set_t *set) +{ + return set->hash (); +} + +/** + * hb_set_is_subset: + * @set: A set + * @larger_set: Another set + * + * Tests whether @set is a subset of @larger_set. + * + * Return value: `true` if the @set is a subset of (or equal to) @larger_set, `false` otherwise. + * + * Since: 1.8.1 + **/ +hb_bool_t +hb_set_is_subset (const hb_set_t *set, + const hb_set_t *larger_set) +{ + return set->is_subset (*larger_set); +} + +/** + * hb_set_set: + * @set: A set + * @other: Another set + * + * Makes the contents of @set equal to the contents of @other. + * + * Since: 0.9.2 + **/ +void +hb_set_set (hb_set_t *set, + const hb_set_t *other) +{ + /* Immutible-safe. */ + set->set (*other); +} + +/** + * hb_set_union: + * @set: A set + * @other: Another set + * + * Makes @set the union of @set and @other. + * + * Since: 0.9.2 + **/ +void +hb_set_union (hb_set_t *set, + const hb_set_t *other) +{ + /* Immutible-safe. */ + set->union_ (*other); +} + +/** + * hb_set_intersect: + * @set: A set + * @other: Another set + * + * Makes @set the intersection of @set and @other. + * + * Since: 0.9.2 + **/ +void +hb_set_intersect (hb_set_t *set, + const hb_set_t *other) +{ + /* Immutible-safe. */ + set->intersect (*other); +} + +/** + * hb_set_subtract: + * @set: A set + * @other: Another set + * + * Subtracts the contents of @other from @set. + * + * Since: 0.9.2 + **/ +void +hb_set_subtract (hb_set_t *set, + const hb_set_t *other) +{ + /* Immutible-safe. */ + set->subtract (*other); +} + +/** + * hb_set_symmetric_difference: + * @set: A set + * @other: Another set + * + * Makes @set the symmetric difference of @set + * and @other. + * + * Since: 0.9.2 + **/ +void +hb_set_symmetric_difference (hb_set_t *set, + const hb_set_t *other) +{ + /* Immutible-safe. */ + set->symmetric_difference (*other); +} + +/** + * hb_set_invert: + * @set: A set + * + * Inverts the contents of @set. + * + * Since: 3.0.0 + **/ +void +hb_set_invert (hb_set_t *set) +{ + /* Immutible-safe. */ + set->invert (); +} + +/** + * hb_set_is_inverted: + * @set: A set + * + * Returns whether the set is inverted. + * + * Return value: `true` if the set is inverted, `false` otherwise + * + * Since: 7.0.0 + **/ +hb_bool_t +hb_set_is_inverted (const hb_set_t *set) +{ + return set->is_inverted (); +} + +/** + * hb_set_get_population: + * @set: A set + * + * Returns the number of elements in the set. + * + * Return value: The population of @set + * + * Since: 0.9.7 + **/ +unsigned int +hb_set_get_population (const hb_set_t *set) +{ + return set->get_population (); +} + +/** + * hb_set_get_min: + * @set: A set + * + * Finds the smallest element in the set. + * + * Return value: minimum of @set, or #HB_SET_VALUE_INVALID if @set is empty. + * + * Since: 0.9.7 + **/ +hb_codepoint_t +hb_set_get_min (const hb_set_t *set) +{ + return set->get_min (); +} + +/** + * hb_set_get_max: + * @set: A set + * + * Finds the largest element in the set. + * + * Return value: maximum of @set, or #HB_SET_VALUE_INVALID if @set is empty. + * + * Since: 0.9.7 + **/ +hb_codepoint_t +hb_set_get_max (const hb_set_t *set) +{ + return set->get_max (); +} + +/** + * hb_set_next: + * @set: A set + * @codepoint: (inout): Input = Code point to query + * Output = Code point retrieved + * + * Fetches the next element in @set that is greater than current value of @codepoint. + * + * Set @codepoint to #HB_SET_VALUE_INVALID to get started. + * + * Return value: `true` if there was a next value, `false` otherwise + * + * Since: 0.9.2 + **/ +hb_bool_t +hb_set_next (const hb_set_t *set, + hb_codepoint_t *codepoint) +{ + return set->next (codepoint); +} + +/** + * hb_set_previous: + * @set: A set + * @codepoint: (inout): Input = Code point to query + * Output = Code point retrieved + * + * Fetches the previous element in @set that is lower than current value of @codepoint. + * + * Set @codepoint to #HB_SET_VALUE_INVALID to get started. + * + * Return value: `true` if there was a previous value, `false` otherwise + * + * Since: 1.8.0 + **/ +hb_bool_t +hb_set_previous (const hb_set_t *set, + hb_codepoint_t *codepoint) +{ + return set->previous (codepoint); +} + +/** + * hb_set_next_range: + * @set: A set + * @first: (out): The first code point in the range + * @last: (inout): Input = The current last code point in the range + * Output = The last code point in the range + * + * Fetches the next consecutive range of elements in @set that + * are greater than current value of @last. + * + * Set @last to #HB_SET_VALUE_INVALID to get started. + * + * Return value: `true` if there was a next range, `false` otherwise + * + * Since: 0.9.7 + **/ +hb_bool_t +hb_set_next_range (const hb_set_t *set, + hb_codepoint_t *first, + hb_codepoint_t *last) +{ + return set->next_range (first, last); +} + +/** + * hb_set_previous_range: + * @set: A set + * @first: (inout): Input = The current first code point in the range + * Output = The first code point in the range + * @last: (out): The last code point in the range + * + * Fetches the previous consecutive range of elements in @set that + * are greater than current value of @last. + * + * Set @first to #HB_SET_VALUE_INVALID to get started. + * + * Return value: `true` if there was a previous range, `false` otherwise + * + * Since: 1.8.0 + **/ +hb_bool_t +hb_set_previous_range (const hb_set_t *set, + hb_codepoint_t *first, + hb_codepoint_t *last) +{ + return set->previous_range (first, last); +} + +/** + * hb_set_next_many: + * @set: A set + * @codepoint: Outputting codepoints starting after this one. + * Use #HB_SET_VALUE_INVALID to get started. + * @out: (array length=size): An array of codepoints to write to. + * @size: The maximum number of codepoints to write out. + * + * Finds the next element in @set that is greater than @codepoint. Writes out + * codepoints to @out, until either the set runs out of elements, or @size + * codepoints are written, whichever comes first. + * + * Return value: the number of values written. + * + * Since: 4.2.0 + **/ +unsigned int +hb_set_next_many (const hb_set_t *set, + hb_codepoint_t codepoint, + hb_codepoint_t *out, + unsigned int size) +{ + return set->next_many (codepoint, out, size); +} -- cgit v1.2.3