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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/src/CMapManager.cpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/src/CMapManager.cpp | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/CMapManager.cpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/CMapManager.cpp deleted file mode 100644 index dfc564f7f2b..00000000000 --- a/Build/source/texk/dvisvgm/dvisvgm-src/src/CMapManager.cpp +++ /dev/null @@ -1,137 +0,0 @@ -/************************************************************************* -** CMapManager.cpp ** -** ** -** This file is part of dvisvgm -- a fast DVI to SVG converter ** -** Copyright (C) 2005-2021 Martin Gieseking <martin.gieseking@uos.de> ** -** ** -** This program is free software; you can redistribute it and/or ** -** modify it under the terms of the GNU General Public License as ** -** published by the Free Software Foundation; either version 3 of ** -** the License, or (at your option) any later version. ** -** ** -** This program is distributed in the hope that it will be useful, but ** -** WITHOUT ANY WARRANTY; without even the implied warranty of ** -** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** -** GNU General Public License for more details. ** -** ** -** You should have received a copy of the GNU General Public License ** -** along with this program; if not, see <http://www.gnu.org/licenses/>. ** -*************************************************************************/ - -#include <array> -#include <sstream> -#include "CMap.hpp" -#include "CMapManager.hpp" -#include "CMapReader.hpp" -#include "FileFinder.hpp" -#include "Font.hpp" -#include "Message.hpp" - -using namespace std; - - -CMapManager& CMapManager::instance () { - static CMapManager cmm; - return cmm; -} - - -/** Loads a cmap and returns the corresponding object. */ -CMap* CMapManager::lookup (const string &name) { - auto it = _cmaps.find(name); - if (it != _cmaps.end()) - return it->second.get(); - - if (_includedCMaps.find(name) != _includedCMaps.end()) { - _level = 0; - throw CMapReaderException("circular reference of CMap " + name); - } - - unique_ptr<CMap> cmap_ptr; - if (name == "Identity-H") - cmap_ptr = util::make_unique<IdentityHCMap>(); - else if (name == "Identity-V") - cmap_ptr = util::make_unique<IdentityVCMap>(); - else if (name == "unicode") - cmap_ptr = util::make_unique<UnicodeCMap>(); - if (cmap_ptr) { - CMap *ret = cmap_ptr.get(); - _cmaps[name] = std::move(cmap_ptr); - return ret; - } - // Load cmap data of file <name> and also process all cmaps referenced by operator "usecmap". - // This can lead to a sequence of further calls of lookup(). In order to prevent infinite loops - // due to (disallowed) circular cmap inclusions, we keep track of all cmaps processed during - // a sequence of inclusions. - _includedCMaps.insert(name); // save name of current cmap being processed - _level++; // increase nesting level - CMap *ret=nullptr; - try { - CMapReader reader; - if (!(cmap_ptr = reader.read(name))) { - _level = 1; - Message::wstream(true) << "CMap file '" << name << "' not found\n"; - } - ret = cmap_ptr.get(); - _cmaps[name] = std::move(cmap_ptr); - } - catch (const CMapReaderException &e) { - Message::estream(true) << "CMap file " << name << ": " << e.what() << "\n"; - } - if (--_level == 0) // back again at initial nesting level? - _includedCMaps.clear(); // => names of included cmaps are no longer needed - return ret; -} - - -/** Looks for a base font CMap and a compatible encoding table in a given font. The CMap describe - * the mapping from CIDs to character codes where the latter are relative to the encoding table - * identified by charmapID. - * cmap:X->CID, bfmap:CID->Y, enctable:Y->CharCode - * @param[in] font look for available encoding tables in this font - * @param[in] cmap take the source registry-ordering pair from this CMap - * @param[out] charmapID ID of the compatible character map found in the given font - * @return base font CMap that maps from CIDs to character codes */ -const CMap* CMapManager::findCompatibleBaseFontMap (const PhysicalFont *font, const CMap *cmap, CharMapID &charmapID) { - if (!font || !cmap) - return nullptr; - - struct CharMapIDToEncName { - CharMapID id; - const char *encname; - }; - const array<CharMapIDToEncName, 10> encodings {{ - {CharMapID::WIN_UCS4, "UCS4"}, - {CharMapID::WIN_UCS2, "UCS2"}, - {CharMapID::WIN_SHIFTJIS, "90ms-RKSJ"}, - {CharMapID::WIN_PRC, "GBK-EUC"}, - {CharMapID::WIN_BIG5, "ETen-B5"}, - {CharMapID::WIN_WANSUNG, "KSCms-UHC"}, - {CharMapID::MAC_JAPANESE, "90pv-RKSJ"}, - {CharMapID::MAC_TRADCHINESE, "B5pc"}, - {CharMapID::MAC_SIMPLCHINESE, "GBpc-EUC"}, - {CharMapID::MAC_KOREAN, "KSCpc-EUC"} - }}; - - // get IDs of all available charmaps in font - vector<CharMapID> charmapIDs; - font->collectCharMapIDs(charmapIDs); - - - // try to find a compatible encoding CMap - const bool is_unicode_map = bool(dynamic_cast<const UnicodeCMap*>(cmap)); - const string ro = cmap->getROString(); - for (const CharMapIDToEncName &enc : encodings) { - for (const CharMapID &id : charmapIDs) { - if (enc.id == id) { - string cmapname = ro+"-"+enc.encname; - if (is_unicode_map || FileFinder::instance().lookup(cmapname, "cmap", false)) { - charmapID = enc.id; - return is_unicode_map ? cmap : lookup(cmapname); - } - } - } - } - return nullptr; -} - |