2 Copyright (C) 2020 Carl Hetherington <cth@carlh.net>
4 This file is part of libdcp.
6 libdcp is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 libdcp is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with libdcp. If not, see <http://www.gnu.org/licenses/>.
19 In addition, as a special exception, the copyright holders give
20 permission to link the code of portions of this program with the
21 OpenSSL library under certain conditions as described in each
22 individual source file, and distribute linked combinations
25 You must obey the GNU General Public License in all respects
26 for all of the code used other than OpenSSL. If you modify
27 file(s) with this exception, you may extend this exception to your
28 version of the file(s), but you are not obligated to do so. If you
29 do not wish to do so, delete this exception statement from your
30 version. If you delete this exception statement from all source
31 files in the program, then also delete it here.
35 #include "compose.hpp"
36 #include "dcp_assert.h"
37 #include "exceptions.h"
38 #include "language_tag.h"
39 #include <boost/foreach.hpp>
45 using boost::optional;
49 #include "language_tag_lists.cc"
53 optional<LanguageTag::SubtagData>
54 find_in_list (LanguageTag::SubtagData* list, int length, string subtag)
56 for (int i = 0; i < length; ++i) {
57 if (list[i].subtag == subtag) {
62 return optional<LanguageTag::SubtagData>();
67 optional<LanguageTag::SubtagData>
68 find_in_list (LanguageTag::SubtagType type, string subtag)
71 case dcp::LanguageTag::LANGUAGE:
72 return find_in_list(language_list, sizeof(language_list) / sizeof(LanguageTag::SubtagData), subtag);
73 case dcp::LanguageTag::SCRIPT:
74 return find_in_list(script_list, sizeof(script_list) / sizeof(LanguageTag::SubtagData), subtag);
75 case dcp::LanguageTag::REGION:
76 return find_in_list(region_list, sizeof(region_list) / sizeof(LanguageTag::SubtagData), subtag);
77 case dcp::LanguageTag::VARIANT:
78 return find_in_list(variant_list, sizeof(variant_list) / sizeof(LanguageTag::SubtagData), subtag);
79 case dcp::LanguageTag::EXTLANG:
80 return find_in_list(extlang_list, sizeof(extlang_list) / sizeof(LanguageTag::SubtagData), subtag);
83 return optional<LanguageTag::SubtagData>();
87 LanguageTag::Subtag::Subtag (string subtag, SubtagType type)
90 if (!find_in_list(type, subtag)) {
91 throw LanguageTagError(String::compose("Unknown %1 string %2", subtag_type_name(type), subtag));
97 LanguageTag::to_string () const
100 throw LanguageTagError("No language set up");
103 string s = _language->subtag();
106 s += "-" + _script->subtag();
110 s += "-" + _region->subtag();
113 BOOST_FOREACH (VariantSubtag i, _variants) {
114 s += "-" + i.subtag();
117 BOOST_FOREACH (ExtlangSubtag i, _extlangs) {
118 s += "-" + i.subtag();
126 LanguageTag::set_language (LanguageSubtag language)
128 _language = language;
133 LanguageTag::set_script (ScriptSubtag script)
140 LanguageTag::set_region (RegionSubtag region)
147 LanguageTag::add_variant (VariantSubtag variant)
149 if (find(_variants.begin(), _variants.end(), variant) != _variants.end()) {
150 throw LanguageTagError (String::compose("Duplicate Variant subtag %1", variant.subtag()));
153 _variants.push_back (variant);
159 check_for_duplicates (vector<T> const& subtags, dcp::LanguageTag::SubtagType type)
161 vector<T> sorted = subtags;
162 sort (sorted.begin(), sorted.end());
164 BOOST_FOREACH (T const& i, sorted) {
165 if (last && i == *last) {
166 throw LanguageTagError (String::compose("Duplicate %1 subtag %2", dcp::LanguageTag::subtag_type_name(type), i.subtag()));
174 LanguageTag::set_variants (vector<VariantSubtag> variants)
176 check_for_duplicates (variants, VARIANT);
177 _variants = variants;
182 LanguageTag::add_extlang (ExtlangSubtag extlang)
184 if (find(_extlangs.begin(), _extlangs.end(), extlang) != _extlangs.end()) {
185 throw LanguageTagError (String::compose("Duplicate Extlang subtag %1", extlang.subtag()));
188 _extlangs.push_back (extlang);
193 LanguageTag::set_extlangs (vector<ExtlangSubtag> extlangs)
195 check_for_duplicates (extlangs, EXTLANG);
196 _extlangs = extlangs;
201 LanguageTag::description () const
204 throw LanguageTagError("No language set up");
209 BOOST_FOREACH (VariantSubtag const& i, _variants) {
210 optional<SubtagData> variant = find_in_list (VARIANT, i.subtag());
211 DCP_ASSERT (variant);
212 d += variant->description + " dialect of ";
215 optional<SubtagData> language = find_in_list (LANGUAGE, _language->subtag());
216 DCP_ASSERT (language);
217 d += language->description;
220 optional<SubtagData> script = find_in_list (SCRIPT, _script->subtag());
222 d += " written using the " + script->description + " script";
226 optional<SubtagData> region = find_in_list (REGION, _region->subtag());
228 d += " for " + region->description;
231 BOOST_FOREACH (ExtlangSubtag const& i, _extlangs) {
232 optional<SubtagData> extlang = find_in_list (EXTLANG, i.subtag());
233 DCP_ASSERT (extlang);
234 d += ", " + extlang->description;
241 vector<LanguageTag::SubtagData>
242 LanguageTag::get_all (SubtagType type)
244 vector<LanguageTag::SubtagData> all;
248 for (size_t i = 0; i < sizeof(language_list) / sizeof(LanguageTag::SubtagData); ++i) {
249 all.push_back (language_list[i]);
253 for (size_t i = 0; i < sizeof(script_list) / sizeof(LanguageTag::SubtagData); ++i) {
254 all.push_back (script_list[i]);
258 for (size_t i = 0; i < sizeof(region_list) / sizeof(LanguageTag::SubtagData); ++i) {
259 all.push_back (region_list[i]);
263 for (size_t i = 0; i < sizeof(variant_list) / sizeof(LanguageTag::SubtagData); ++i) {
264 all.push_back (variant_list[i]);
268 for (size_t i = 0; i < sizeof(extlang_list) / sizeof(LanguageTag::SubtagData); ++i) {
269 all.push_back (extlang_list[i]);
279 LanguageTag::subtag_type_name (SubtagType type)
298 dcp::LanguageTag::VariantSubtag::operator== (VariantSubtag const & other) const
300 return subtag() == other.subtag();
305 dcp::LanguageTag::VariantSubtag::operator< (VariantSubtag const & other) const
307 return subtag() < other.subtag();
312 dcp::LanguageTag::ExtlangSubtag::operator== (ExtlangSubtag const & other) const
314 return subtag() == other.subtag();
319 dcp::LanguageTag::ExtlangSubtag::operator< (ExtlangSubtag const & other) const
321 return subtag() < other.subtag();