74 lines
3.2 KiB
C++
74 lines
3.2 KiB
C++
/*
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* gd-tools - a set of programs to enhance goldendict for immersion learning.
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* Copyright (C) 2023 Ajatt-Tools
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "kana_conv.h"
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#include "precompiled.h"
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#include "util.h"
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auto unicode_char_byte_len(char const& ch) -> CharByteLen
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{
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// See `man charsets` -> Unicode for explanation of below
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if ((ch & 0xC0) == 0x80) {
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// intermediate unicode char
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return CharByteLen::SKIP;
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} else if ((ch & 0x80) == 0x00) {
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// Start of ASCII character
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return CharByteLen::ONE;
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} else if ((ch & 0xE0) == 0xC0) {
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// Cyrillic, etc.
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return CharByteLen::TWO;
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} else if ((ch & 0xF0) == 0xE0) {
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// Start of 3 byte sequence (CJK)
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return CharByteLen::THREE;
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} else if ((ch & 0xF8) == 0xF0) {
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// Other Unicode
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return CharByteLen::FOUR;
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}
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throw gd::runtime_error{ fmt::format("Can't recognize byte: '{:x}'.", ch) };
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}
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auto create_map(std::string_view from, std::string_view to) -> KanaConvMap
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{
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KanaConvMap result{};
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for (auto const [idx, uni_char]: enum_unicode_chars(from)) {
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result.emplace(uni_char, to.substr(idx, uni_char.length()));
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}
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return result;
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}
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auto half_to_full(std::string& str) -> std::string&
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{
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static KanaConvMap const conv_map = {
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{ "ｱ", "ア" }, { "ｲ", "イ" }, { "ｳ", "ウ" }, { "ｴ", "エ" }, { "ｵ", "オ" }, { "ｶ", "カ" }, { "ｷ", "キ" },
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{ "ｸ", "ク" }, { "ｹ", "ケ" }, { "ｺ", "コ" }, { "ｻ", "サ" }, { "ｼ", "シ" }, { "ｽ", "ス" }, { "ｾ", "セ" },
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{ "ｿ", "ソ" }, { "ﾀ", "タ" }, { "ﾁ", "チ" }, { "ﾂ", "ツ" }, { "ﾃ", "テ" }, { "ﾄ", "ト" }, { "ﾅ", "ナ" },
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{ "ﾆ", "ニ" }, { "ﾇ", "ヌ" }, { "ﾈ", "ネ" }, { "ﾉ", "ノ" }, { "ﾊ", "ハ" }, { "ﾋ", "ヒ" }, { "ﾌ", "フ" },
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{ "ﾍ", "ヘ" }, { "ﾎ", "ホ" }, { "ﾏ", "マ" }, { "ﾐ", "ミ" }, { "ﾑ", "ム" }, { "ﾒ", "メ" }, { "ﾓ", "モ" },
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{ "ﾔ", "ヤ" }, { "ﾕ", "ユ" }, { "ﾖ", "ヨ" }, { "ﾗ", "ラ" }, { "ﾘ", "リ" }, { "ﾙ", "ル" }, { "ﾚ", "レ" },
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{ "ﾛ", "ロ" }, { "ﾜ", "ワ" }, { "ｦ", "ヲ" }, { "ﾝ", "ン" }, { "ｧ", "ァ" }, { "ｨ", "ィ" }, { "ｩ", "ゥ" },
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{ "ｪ", "ェ" }, { "ｫ", "ォ" }, { "ｯ", "ッ" }, { "ｬ", "ャ" }, { "ｭ", "ュ" }, { "ｮ", "ョ" }, { "｡", "。" },
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{ "､", "、" }, { "･", "・" }, { "゛", "ﾞ" }, { "゜", "ﾟ" }, { "｢", "「" }, { "｣", "」" }, { "ｰ", "ー" }
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};
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for (auto const [idx, uni_char]: enum_unicode_chars(str)) {
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if (conv_map.contains(uni_char)) {
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str.replace(idx, uni_char.length(), conv_map.at(uni_char));
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}
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}
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return str;
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}
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