452 lines
20 KiB
C
452 lines
20 KiB
C
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* -----------------------------------------------------------------------------
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* File: UTF8String.c
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* Description:
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* This file contains the functions for modifying the UTF-8 String. It includes
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* functions to append, Insert at index, insert before character,
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* insert before string, insert after character, insert after string, replace,
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* copy, pop, remove, remove range, clear, check if contains string, check if
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* empty.
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*
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* Author: Mineplay
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* -----------------------------------------------------------------------------
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*/
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#include "../../Include/Fledasty/Strings/UTF8String.h"
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#include <Hallocy/Core/Allocator.h>
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#include <Hallocy/Core/Memory.h>
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#include <Hallocy/Utils/Error.h>
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FledastyError fledasty_utf8_string_initialize(FledastyUtf8String *new_string, unsigned char *character_string, const size_t character_string_size) {
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if (new_string == NULL) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if (character_string == NULL || character_string_size == 0) {
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new_string->size = 0;
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new_string->capacity = 10;
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new_string->character_string = (unsigned char*)hallocy_malloc(new_string->capacity);
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} else {
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if (!fledasty_utf8_string_validate(character_string, character_string_size)) {
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return FLEDASTY_ERROR_INVALID_VALUE;
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}
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new_string->size = character_string_size;
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new_string->capacity = new_string->size + new_string->size;
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new_string->character_string = (unsigned char*)hallocy_malloc(new_string->capacity);
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hallocy_copy_memory(new_string->character_string, character_string, character_string_size);
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}
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new_string->character_string[new_string->size] = '\0';
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return FLEDASTY_ERROR_NONE;
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}
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FledastyError fledasty_utf8_string_destroy(FledastyUtf8String *current_string) {
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if (current_string == NULL) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if (hallocy_free(current_string->character_string) != HALLOCY_ERROR_NONE) {
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return FLEDASTY_ERROR_FAILED_ALLOCATION;
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}
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current_string->character_string = NULL;
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return FLEDASTY_ERROR_NONE;
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}
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FledastyError fledasty_utf8_string_append(FledastyUtf8String *current_string, unsigned char *character_string, const size_t character_string_size) {
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if (current_string == NULL || character_string == NULL || character_string_size == 0) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if (!fledasty_utf8_string_validate(character_string, character_string_size)) {
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return FLEDASTY_ERROR_INVALID_VALUE;
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}
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if (current_string->capacity <= current_string->size + character_string_size) {
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current_string->capacity += (current_string->capacity > character_string_size) ? current_string->capacity : character_string_size + 1;
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current_string->character_string = (unsigned char*)hallocy_realloc(current_string->character_string, current_string->capacity * sizeof(unsigned char));
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}
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hallocy_copy_memory(current_string->character_string + current_string->size, character_string, character_string_size);
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current_string->size += character_string_size;
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current_string->character_string[current_string->size] = '\0';
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return FLEDASTY_ERROR_NONE;
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}
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FledastyError fledasty_utf8_string_insert_at_index(FledastyUtf8String *current_string, const size_t index, unsigned char *character_string, const size_t character_string_size) {
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if (current_string == NULL || character_string == NULL || character_string_size == 0) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if (index > current_string->size) {
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return FLEDASTY_ERROR_INDEX_OUT_OF_RANGE;
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}
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if (!fledasty_utf8_string_validate(character_string, character_string_size)) {
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return FLEDASTY_ERROR_INVALID_VALUE;
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}
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if (current_string->capacity <= current_string->size + character_string_size) {
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current_string->capacity += (current_string->capacity > character_string_size) ? current_string->capacity : character_string_size;
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current_string->character_string = (unsigned char*)hallocy_realloc(current_string->character_string, current_string->capacity * sizeof(unsigned char));
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}
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hallocy_move_memory(current_string->character_string + (index + character_string_size), current_string->character_string + index, current_string->size - index);
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hallocy_copy_memory(current_string->character_string + index, character_string, character_string_size);
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current_string->size += character_string_size;
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current_string->character_string[current_string->size] = '\0';
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return FLEDASTY_ERROR_NONE;
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}
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FledastyError fledasty_utf8_string_insert_before_string(FledastyUtf8String *current_string, unsigned char *before_character_string, const size_t before_character_string_size, unsigned char *character_string, const size_t character_string_size) {
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if (current_string == NULL || before_character_string == NULL || before_character_string_size == 0 || character_string == NULL || character_string_size == 0) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if (!fledasty_utf8_string_validate(before_character_string, before_character_string_size) || !fledasty_utf8_string_validate(character_string, character_string_size)) {
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return FLEDASTY_ERROR_INVALID_VALUE;
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}
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size_t index = 0;
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while (index < (current_string->size - before_character_string_size) && !hallocy_compare_memory(current_string->character_string + index, before_character_string, before_character_string_size)) {
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if (hallocy_compare_memory(current_string->character_string + index, before_character_string, before_character_string_size)) {
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if (current_string->capacity <= current_string->size + character_string_size) {
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current_string->capacity += (current_string->capacity > character_string_size) ? current_string->capacity : character_string_size + 1;
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current_string->character_string = (unsigned char*)hallocy_realloc(current_string->character_string, current_string->capacity * sizeof(unsigned char));
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}
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hallocy_move_memory(current_string->character_string + (index + character_string_size), current_string->character_string + index, current_string->size - index);
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hallocy_copy_memory(current_string->character_string + index, character_string, character_string_size);
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current_string->size += character_string_size;
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return FLEDASTY_ERROR_NONE;
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}
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index += 1;
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}
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return FLEDASTY_ERROR_VALUE_NOT_FOUND;
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}
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FledastyError fledasty_utf8_string_insert_after_string(FledastyUtf8String *current_string, unsigned char *after_character_string, const size_t after_character_string_size, unsigned char *character_string, const size_t character_string_size) {
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if (current_string == NULL || after_character_string == NULL || after_character_string_size == 0 || character_string == NULL || character_string_size == 0) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if (!fledasty_utf8_string_validate(after_character_string, after_character_string_size) || !fledasty_utf8_string_validate(character_string, character_string_size)) {
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return FLEDASTY_ERROR_INVALID_VALUE;
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}
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size_t index = 0;
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while (index < (current_string->size - after_character_string_size)) {
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if (hallocy_compare_memory(current_string->character_string + index, after_character_string, after_character_string_size)) {
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if (current_string->capacity <= current_string->size + character_string_size) {
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current_string->capacity += (current_string->capacity > character_string_size) ? current_string->capacity : character_string_size + 1;
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current_string->character_string = (unsigned char*)hallocy_realloc(current_string->character_string, current_string->capacity * sizeof(unsigned char));
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}
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index += after_character_string_size;
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hallocy_move_memory(current_string->character_string + (index + character_string_size), current_string->character_string + index, current_string->size - index + 1);
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hallocy_copy_memory(current_string->character_string + index, character_string, character_string_size);
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current_string->size += character_string_size;
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return FLEDASTY_ERROR_NONE;
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}
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index += 1;
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}
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return FLEDASTY_ERROR_VALUE_NOT_FOUND;
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}
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FledastyError fledasty_utf8_string_pop(FledastyUtf8String *current_string) {
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if (current_string == NULL) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if ((current_string->character_string[current_string->size - 5] & 0xF0) == 0xF0) {
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current_string->size -= 4;
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} else if ((current_string->character_string[current_string->size - 4] & 0xE0) == 0xC0) {
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current_string->size -= 3;
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} else if ((current_string->character_string[current_string->size - 3] & 0xC0) == 0xC0) {
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current_string->size -= 2;
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} else {
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current_string->size -= 1;
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}
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current_string->character_string[current_string->size] = '\0';
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return FLEDASTY_ERROR_NONE;
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}
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FledastyError fledasty_utf8_string_remove(FledastyUtf8String *current_string, unsigned char *character_string, const size_t character_string_size) {
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if (current_string == NULL || character_string == NULL || character_string_size == 0) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if (!fledasty_utf8_string_validate(character_string, character_string_size)) {
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return FLEDASTY_ERROR_INVALID_VALUE;
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}
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size_t index = 0;
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while (index < (current_string->size - character_string_size)) {
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if (hallocy_compare_memory(current_string->character_string + index, character_string, character_string_size)) {
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hallocy_move_memory(current_string->character_string + index, current_string->character_string + index + character_string_size, current_string->size - (index + character_string_size));
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current_string->size -= character_string_size;
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current_string->character_string[current_string->size] = '\0';
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return FLEDASTY_ERROR_NONE;
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}
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index += 1;
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}
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return FLEDASTY_ERROR_VALUE_NOT_FOUND;
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}
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FledastyError fledasty_utf8_string_remove_range(FledastyUtf8String *current_string, const size_t start_index, const size_t end_index) {
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if (current_string == NULL) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if (start_index >= end_index || end_index >= current_string->size) {
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return FLEDASTY_ERROR_INDEX_OUT_OF_RANGE;
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}
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hallocy_move_memory(current_string->character_string + start_index, current_string->character_string + end_index, current_string->size - end_index);
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current_string->size -= end_index - start_index;
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current_string->character_string[current_string->size] = '\0';
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return FLEDASTY_ERROR_NONE;
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}
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FledastyError fledasty_utf8_string_clear(FledastyUtf8String *current_string) {
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if (current_string == NULL) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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current_string->size = 0;
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current_string->character_string[0] = '\0';
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return FLEDASTY_ERROR_NONE;
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}
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FledastyError fledasty_utf8_string_replace_string(FledastyUtf8String *current_string, unsigned char *replace_character_string, const size_t replace_character_string_size, unsigned char *character_string, const size_t character_string_size) {
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if (current_string == NULL || replace_character_string == NULL || replace_character_string_size == 0 || character_string == NULL || character_string_size == 0) {
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return FLEDASTY_ERROR_INVALID_POINTER;
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}
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if (!fledasty_utf8_string_validate(replace_character_string, replace_character_string_size) || !fledasty_utf8_string_validate(character_string, character_string_size)) {
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return FLEDASTY_ERROR_INVALID_VALUE;
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}
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size_t index = 0;
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while (index < current_string->size - replace_character_string_size) {
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if (hallocy_compare_memory(current_string->character_string + index, replace_character_string, replace_character_string_size)) {
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const size_t new_size = current_string->size + (character_string_size - replace_character_string_size);
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if (current_string->capacity <= new_size) {
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current_string->capacity += (current_string->capacity > character_string_size) ? current_string->capacity : character_string_size;
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current_string->character_string = (unsigned char*)hallocy_realloc(current_string->character_string, current_string->capacity * sizeof(unsigned char));
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}
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hallocy_move_memory(current_string->character_string + index + character_string_size, current_string->character_string + index + replace_character_string_size, current_string->size - (index + replace_character_string_size));
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hallocy_copy_memory(current_string->character_string + index, character_string, character_string_size);
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current_string->size = new_size;
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current_string->character_string[current_string->size] = '\0';
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return FLEDASTY_ERROR_NONE;
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}
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index += 1;
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}
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return FLEDASTY_ERROR_VALUE_NOT_FOUND;
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}
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bool fledasty_utf8_string_has_string(const FledastyUtf8String *current_string, unsigned char *character_string, const size_t character_string_size) {
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if (current_string == NULL || character_string == NULL || character_string_size == 0) {
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return false;
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}
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if (!fledasty_utf8_string_validate(character_string, character_string_size)) {
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return false;
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}
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size_t index = 0;
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while (index < current_string->size - character_string_size) {
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if (hallocy_compare_memory(current_string->character_string + index, character_string, character_string_size)) {
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return true;
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}
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index += 1;
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}
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return false;
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}
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FledastyUtf8String fledasty_utf8_string_encode(const uint32_t *unicode, const size_t size) {
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FledastyUtf8String utf8_string;
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fledasty_utf8_string_initialize(&utf8_string, NULL, 0);
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if (unicode == NULL) {
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return utf8_string;
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}
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size_t string_index = 0;
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for (size_t index = 0; index < size; index += 1) {
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if (unicode[index] <= 0x00007F) {
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if (utf8_string.capacity <= string_index) {
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utf8_string.capacity += utf8_string.capacity;
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utf8_string.character_string = (unsigned char*)hallocy_realloc(utf8_string.character_string, utf8_string.capacity);
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}
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utf8_string.character_string[string_index] = unicode[index];
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string_index += 1;
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} else if (unicode[index] <= 0x0007FF) {
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if (utf8_string.capacity <= string_index + 2) {
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utf8_string.capacity += utf8_string.capacity;
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utf8_string.character_string = (unsigned char*)hallocy_realloc(utf8_string.character_string, utf8_string.capacity);
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}
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utf8_string.character_string[string_index] = 0xC0 | ((unicode[index] >> 6) & 0x07);
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utf8_string.character_string[string_index + 1] = 0x80 | (unicode[index] & 0x3F);
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string_index += 2;
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} else if (unicode[index] <= 0x00FFFF) {
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if (utf8_string.capacity <= string_index + 3) {
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utf8_string.capacity += utf8_string.capacity;
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utf8_string.character_string = (unsigned char*)hallocy_realloc(utf8_string.character_string, utf8_string.capacity);
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}
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utf8_string.character_string[string_index] = 0xE0 | ((unicode[index] >> 12) & 0x07);
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utf8_string.character_string[string_index + 1] = 0x80 | ((unicode[index] >> 6) & 0x3F);
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utf8_string.character_string[string_index + 2] = 0x80 | (unicode[index] & 0x3F);
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string_index += 3;
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} else if (unicode[index] <= 0x10FFFF) {
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if (utf8_string.capacity <= string_index + 4) {
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utf8_string.capacity += utf8_string.capacity;
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utf8_string.character_string = (unsigned char*)hallocy_realloc(utf8_string.character_string, utf8_string.capacity);
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}
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utf8_string.character_string[string_index] = 0xF0 | ((unicode[index] >> 18) & 0x07);
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utf8_string.character_string[string_index + 1] = 0x80 | ((unicode[index] >> 12) & 0x3F);
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utf8_string.character_string[string_index + 2] = 0x80 | ((unicode[index] >> 6) & 0x3F);
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utf8_string.character_string[string_index + 3] = 0x80 | (unicode[index] & 0x3F);
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string_index += 4;
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}
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}
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utf8_string.size = string_index;
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if (utf8_string.capacity <= utf8_string.size) {
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utf8_string.capacity += utf8_string.capacity;
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utf8_string.character_string = (unsigned char*)hallocy_realloc(utf8_string.character_string, utf8_string.capacity);
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}
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utf8_string.character_string[utf8_string.size] = '\0';
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return utf8_string;
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}
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uint32_t *fledasty_utf8_string_decode(const FledastyUtf8String *current_string, size_t *unicode_string_size) {
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if (current_string == NULL || unicode_string_size == NULL) {
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return NULL;
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}
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(*unicode_string_size) = 0;
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size_t index = 0;
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uint32_t *unicode_string = (uint32_t*)hallocy_malloc(current_string->size * sizeof(uint32_t));
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while (index < current_string->size) {
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if ((current_string->character_string[index] & 0xF0) == 0xF0) {
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unicode_string[*unicode_string_size] = ((current_string->character_string[index] & 0x07) << 18) | ((current_string->character_string[index + 1] & 0x3F) << 12) | ((current_string->character_string[index + 2] & 0x3F) << 6) | (current_string->character_string[index + 3] & 0x3F);
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index += 4;
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} else if ((current_string->character_string[index] & 0xE0) == 0xE0) {
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unicode_string[*unicode_string_size] = ((current_string->character_string[index] & 0x0F) << 12) | ((current_string->character_string[index + 1] & 0x3F) << 6) | (current_string->character_string[index + 2] & 0x3F);
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index += 3;
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} else if ((current_string->character_string[index] & 0xC0) == 0xC0) {
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unicode_string[*unicode_string_size] = ((current_string->character_string[index] & 0x1F) << 6) | (current_string->character_string[index + 1] & 0x3F);
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index += 2;
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} else {
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unicode_string[*unicode_string_size] = current_string->character_string[index];
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index += 1;
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}
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(*unicode_string_size) += 1;
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}
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return unicode_string;
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}
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bool fledasty_utf8_string_validate(unsigned char *character_string, const size_t character_string_size) {
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if (character_string == NULL) {
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return false;
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}
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size_t index = 0;
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while (index < character_string_size) {
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if ((character_string[index] & 0xF0) == 0xF0) {
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if (index + 3 >= character_string_size) {
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return false;
|
|
}
|
|
|
|
if ((character_string[index + 1] & 0xC0) != 0x80) {
|
|
return false;
|
|
} else if ((character_string[index + 2] & 0xC0) != 0x80) {
|
|
return false;
|
|
} else if ((character_string[index + 3] & 0xC0) != 0x80) {
|
|
return false;
|
|
}
|
|
|
|
index += 4;
|
|
} else if ((character_string[index] & 0xE0) == 0xC0) {
|
|
if (index + 2 >= character_string_size) {
|
|
return false;
|
|
}
|
|
|
|
if ((character_string[index + 1] & 0xC0) != 0x80) {
|
|
return false;
|
|
} else if ((character_string[index + 2] & 0xC0) != 0x80) {
|
|
return false;
|
|
}
|
|
|
|
index += 3;
|
|
} else if ((character_string[index] & 0xC0) == 0xC0) {
|
|
if (index + 1 >= character_string_size) {
|
|
return false;
|
|
}
|
|
|
|
if ((character_string[index + 1] & 0xC0) != 0x80) {
|
|
return false;
|
|
}
|
|
|
|
index += 2;
|
|
} else {
|
|
index += 1;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
size_t fledasty_utf8_string_get_size(const unsigned char *character_string) {
|
|
size_t size = 0;
|
|
while (character_string[size] != '\0') {
|
|
size += 1;
|
|
}
|
|
|
|
return size;
|
|
}
|