[1505] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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| 23 | * Fabian 'x3n' Landau |
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| 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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| 29 | #include "Loader.h" |
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[2710] | 30 | |
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[5695] | 31 | #include <sstream> |
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[2710] | 32 | #include <tinyxml/ticpp.h> |
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[5695] | 33 | #include <boost/scoped_ptr.hpp> |
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[10264] | 34 | #include <boost/filesystem.hpp> |
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| 35 | #include <boost/filesystem/fstream.hpp> |
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[2710] | 36 | |
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[8858] | 37 | #include "util/Output.h" |
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[3196] | 38 | #include "util/Exception.h" |
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[5695] | 39 | #include "util/StringUtils.h" |
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[1505] | 40 | #include "BaseObject.h" |
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[5695] | 41 | #include "LuaState.h" |
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[1505] | 42 | #include "Namespace.h" |
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[5695] | 43 | #include "Resource.h" |
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[3196] | 44 | #include "XMLFile.h" |
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[9667] | 45 | #include "object/Iterator.h" |
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| 46 | #include "object/ObjectList.h" |
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[1505] | 47 | |
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| 48 | namespace orxonox |
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| 49 | { |
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[2087] | 50 | std::vector<std::pair<const XMLFile*, ClassTreeMask> > Loader::files_s; |
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[1505] | 51 | ClassTreeMask Loader::currentMask_s; |
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| 52 | |
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[8858] | 53 | bool Loader::open(const XMLFile* file, const ClassTreeMask& mask, bool bVerbose) |
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[1505] | 54 | { |
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[2087] | 55 | Loader::add(file, mask); |
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[8858] | 56 | return Loader::load(file, mask, bVerbose); |
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[1505] | 57 | } |
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| 58 | |
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| 59 | void Loader::close() |
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| 60 | { |
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| 61 | Loader::unload(); |
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[2087] | 62 | Loader::files_s.clear(); |
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[1505] | 63 | } |
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| 64 | |
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[2087] | 65 | void Loader::close(const XMLFile* file) |
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[1505] | 66 | { |
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[2087] | 67 | Loader::unload(file); |
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| 68 | Loader::remove(file); |
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[1505] | 69 | } |
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| 70 | |
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[2087] | 71 | void Loader::add(const XMLFile* file, const ClassTreeMask& mask) |
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[1505] | 72 | { |
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[2087] | 73 | if (!file) |
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[1755] | 74 | return; |
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[2087] | 75 | Loader::files_s.insert(Loader::files_s.end(), std::pair<const XMLFile*, ClassTreeMask>(file, mask)); |
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[1505] | 76 | } |
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| 77 | |
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[2087] | 78 | void Loader::remove(const XMLFile* file) |
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[1505] | 79 | { |
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[2087] | 80 | if (!file) |
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[1755] | 81 | return; |
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[2087] | 82 | for (std::vector<std::pair<const XMLFile*, ClassTreeMask> >::iterator it = Loader::files_s.begin(); it != Loader::files_s.end(); ++it) |
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[1505] | 83 | { |
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[6417] | 84 | if (it->first == file) |
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[1505] | 85 | { |
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[2087] | 86 | Loader::files_s.erase(it); |
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[1505] | 87 | break; |
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| 88 | } |
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| 89 | } |
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| 90 | } |
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| 91 | |
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[7648] | 92 | /** |
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| 93 | @brief |
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| 94 | Loads all opened files, while conforming to the restrictions given by the input ClassTreeMask. |
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| 95 | @param mask |
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| 96 | A ClassTreeMask, which defines which types of classes are loaded and which aren't. |
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[8858] | 97 | @param bVerbose |
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[7648] | 98 | Whether the loader is verbose (prints its progress in a low output level) or not. |
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| 99 | @return |
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| 100 | Returns true if successful. |
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| 101 | */ |
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[8858] | 102 | bool Loader::load(const ClassTreeMask& mask, bool bVerbose) |
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[1505] | 103 | { |
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| 104 | bool success = true; |
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[2087] | 105 | for (std::vector<std::pair<const XMLFile*, ClassTreeMask> >::iterator it = Loader::files_s.begin(); it != Loader::files_s.end(); ++it) |
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[8858] | 106 | if (!Loader::load(it->first, it->second * mask, bVerbose)) |
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[1505] | 107 | success = false; |
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| 108 | |
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| 109 | return success; |
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| 110 | } |
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| 111 | |
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| 112 | void Loader::unload(const ClassTreeMask& mask) |
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| 113 | { |
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[1747] | 114 | for (ObjectList<BaseObject>::iterator it = ObjectList<BaseObject>::begin(); it != ObjectList<BaseObject>::end(); ) |
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[1505] | 115 | { |
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| 116 | if (mask.isIncluded(it->getIdentifier())) |
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[5929] | 117 | (it++)->destroy(); |
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[1505] | 118 | else |
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| 119 | ++it; |
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| 120 | } |
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| 121 | } |
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| 122 | |
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[7648] | 123 | /** |
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| 124 | @brief |
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| 125 | Reloads all opened files, while conforming to the restrictions given by the input ClassTreeMask. |
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| 126 | @param mask |
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| 127 | A ClassTreeMask, which defines which types of classes are reloaded and which aren't. |
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[8858] | 128 | @param bVerbose |
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[7648] | 129 | Whether the loader is verbose (prints its progress in a low output level) or not. |
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| 130 | @return |
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| 131 | Returns true if successful. |
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| 132 | */ |
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[8858] | 133 | bool Loader::reload(const ClassTreeMask& mask, bool bVerbose) |
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[1505] | 134 | { |
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| 135 | Loader::unload(mask); |
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[8858] | 136 | return Loader::load(mask, bVerbose); |
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[1505] | 137 | } |
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| 138 | |
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[7648] | 139 | /** |
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| 140 | @brief |
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| 141 | Loads the input file, while conforming to the restrictions given by the input ClassTreeMask. |
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| 142 | @param file |
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| 143 | The file to be loaded. |
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| 144 | @param mask |
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| 145 | A ClassTreeMask, which defines which types of classes are loaded and which aren't. |
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[8858] | 146 | @param bVerbose |
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[7648] | 147 | Whether the loader is verbose (prints its progress in a low output level) or not. |
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[8108] | 148 | @param bRemoveLuaTags |
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| 149 | If true lua tags are just ignored and removed. The default is false. |
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[7648] | 150 | @return |
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| 151 | Returns true if successful. |
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| 152 | */ |
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[8858] | 153 | bool Loader::load(const XMLFile* file, const ClassTreeMask& mask, bool bVerbose, bool bRemoveLuaTags) |
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[1505] | 154 | { |
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[2087] | 155 | if (!file) |
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[1755] | 156 | return false; |
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| 157 | |
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[2087] | 158 | Loader::currentMask_s = file->getMask() * mask; |
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[1505] | 159 | |
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[5695] | 160 | std::string xmlInput; |
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[10264] | 161 | |
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| 162 | shared_ptr<std::vector<std::vector<std::pair<std::string, size_t>>>> lineTrace(new std::vector<std::vector<std::pair<std::string, size_t>>>()); |
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| 163 | lineTrace->reserve(1000); //arbitrary number |
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| 164 | |
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| 165 | |
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[8079] | 166 | if (file->getLuaSupport() && !bRemoveLuaTags) |
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[5695] | 167 | { |
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| 168 | // Use the LuaState to replace the XML tags (calls our function) |
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| 169 | scoped_ptr<LuaState> luaState(new LuaState()); |
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[10264] | 170 | luaState->setTraceMap(lineTrace); |
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[5695] | 171 | luaState->setIncludeParser(&Loader::replaceLuaTags); |
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[6417] | 172 | luaState->includeFile(file->getFilename()); |
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[5695] | 173 | xmlInput = luaState->getOutput().str(); |
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| 174 | } |
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| 175 | else |
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| 176 | { |
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[6417] | 177 | shared_ptr<ResourceInfo> info = Resource::getInfo(file->getFilename()); |
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[5695] | 178 | if (info == NULL) |
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| 179 | { |
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[8858] | 180 | orxout(user_error, context::loader) << "Could not find XML file '" << file->getFilename() << "'." << endl; |
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[5695] | 181 | return false; |
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| 182 | } |
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[6417] | 183 | xmlInput = Resource::open(file->getFilename())->getAsString(); |
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[8079] | 184 | |
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| 185 | if (bRemoveLuaTags) |
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| 186 | { |
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| 187 | // Remove all Lua code. |
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| 188 | // Note: we only need this to speed up parsing of level files at the |
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| 189 | // start of the program. |
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| 190 | // Assumption: the LevelInfo tag does not use Lua scripting |
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| 191 | xmlInput = removeLuaTags(xmlInput); |
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| 192 | } |
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[5695] | 193 | } |
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[1505] | 194 | |
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| 195 | try |
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| 196 | { |
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[8858] | 197 | if(bVerbose) |
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[7648] | 198 | { |
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[8858] | 199 | orxout(user_info) << "Start loading " << file->getFilename() << "..." << endl; |
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| 200 | orxout(internal_info, context::loader) << "Mask: " << Loader::currentMask_s << endl; |
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[7648] | 201 | } |
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| 202 | else |
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| 203 | { |
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[8858] | 204 | orxout(verbose, context::loader) << "Start loading " << file->getFilename() << "..." << endl; |
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| 205 | orxout(verbose_more, context::loader) << "Mask: " << Loader::currentMask_s << endl; |
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[7648] | 206 | } |
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[1505] | 207 | |
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[5695] | 208 | ticpp::Document xmlfile(file->getFilename()); |
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| 209 | xmlfile.Parse(xmlInput, true); |
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[1505] | 210 | |
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| 211 | ticpp::Element rootElement; |
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| 212 | rootElement.SetAttribute("name", "root"); |
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| 213 | rootElement.SetAttribute("bAutogenerated", true); |
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| 214 | |
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| 215 | for (ticpp::Iterator<ticpp::Element> child = xmlfile.FirstChildElement(false); child != child.end(); child++) |
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| 216 | rootElement.InsertEndChild(*child); |
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| 217 | |
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[8858] | 218 | orxout(verbose, context::loader) << " creating root-namespace..." << endl; |
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[9667] | 219 | Namespace* rootNamespace = new Namespace(Context::getRootContext()); |
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[1505] | 220 | rootNamespace->setLoaderIndentation(" "); |
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[2087] | 221 | rootNamespace->setFile(file); |
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[1505] | 222 | rootNamespace->setNamespace(rootNamespace); |
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| 223 | rootNamespace->setRoot(true); |
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| 224 | rootNamespace->XMLPort(rootElement, XMLPort::LoadObject); |
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| 225 | |
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[8858] | 226 | if(bVerbose) |
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| 227 | orxout(user_info) << "Finished loading " << file->getFilename() << '.' << endl; |
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[7648] | 228 | else |
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[8858] | 229 | orxout(verbose, context::loader) << "Finished loading " << file->getFilename() << '.' << endl; |
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[1505] | 230 | |
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[8858] | 231 | orxout(verbose, context::loader) << "Namespace-tree:" << '\n' << rootNamespace->toString(" ") << endl; |
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[1505] | 232 | |
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| 233 | return true; |
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| 234 | } |
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[2171] | 235 | catch (ticpp::Exception& ex) |
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[1505] | 236 | { |
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[8858] | 237 | orxout(user_error, context::loader) << endl; |
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| 238 | orxout(user_error, context::loader) << "An XML-error occurred in Loader.cc while loading " << file->getFilename() << ':' << endl; |
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| 239 | orxout(user_error, context::loader) << ex.what() << endl; |
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| 240 | orxout(user_error, context::loader) << "Loading aborted." << endl; |
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[10264] | 241 | if (lineTrace->size() > 0) |
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| 242 | { |
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| 243 | //Extract the line number from the exception |
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| 244 | std::string tempstring(ex.what()); |
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| 245 | std::string::size_type pos = tempstring.find("\nLine: "); |
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| 246 | if (pos != std::string::npos) |
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| 247 | { |
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| 248 | std::istringstream istr(tempstring.substr(pos + 7)); |
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| 249 | size_t line; |
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| 250 | istr >> line; |
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| 251 | if (line <= lineTrace->size()) |
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| 252 | { |
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| 253 | std::vector<std::pair<std::string, size_t>> linesources = lineTrace->at(line - 1); |
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| 254 | orxout(user_error, context::loader) << "Line contains data from:" << endl; |
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| 255 | for (std::vector<std::pair<std::string, size_t>>::iterator it = linesources.begin(); it != linesources.end(); ++it) |
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| 256 | { |
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| 257 | orxout(user_error, context::loader) << it->first << " , Line " << it->second << endl; |
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| 258 | } |
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| 259 | } |
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| 260 | } |
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| 261 | } |
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[2171] | 262 | } |
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| 263 | catch (Exception& ex) |
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| 264 | { |
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[8858] | 265 | orxout(user_error, context::loader) << endl; |
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| 266 | orxout(user_error, context::loader) << "A loading-error occurred in Loader.cc while loading " << file->getFilename() << ':' << endl; |
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| 267 | orxout(user_error, context::loader) << ex.what() << endl; |
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| 268 | orxout(user_error, context::loader) << "Loading aborted." << endl; |
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[2171] | 269 | } |
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[5747] | 270 | catch (...) |
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[2171] | 271 | { |
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[8858] | 272 | orxout(user_error, context::loader) << endl; |
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| 273 | orxout(user_error, context::loader) << "An error occurred in Loader.cc while loading " << file->getFilename() << ':' << endl; |
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| 274 | orxout(user_error, context::loader) << Exception::handleMessage() << endl; |
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| 275 | orxout(user_error, context::loader) << "Loading aborted." << endl; |
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[1505] | 276 | } |
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[10264] | 277 | //The Tardis' version of boost is too old... |
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| 278 | #if BOOST_VERSION >= 104600 |
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| 279 | boost::filesystem::path temppath = boost::filesystem::temp_directory_path() / "orxonoxml.xml"; |
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| 280 | //Need binary mode, because xmlInput already has \r\n for windows |
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| 281 | boost::filesystem::ofstream outfile(temppath, std::ios_base::binary | std::ios_base::out); |
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| 282 | outfile << xmlInput; |
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| 283 | outfile.flush(); |
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| 284 | outfile.close(); |
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| 285 | orxout(user_error, context::loader) << "The complete xml file has been saved to " << temppath << endl; |
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| 286 | #endif |
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| 287 | return false; |
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[1505] | 288 | } |
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| 289 | |
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[2087] | 290 | void Loader::unload(const XMLFile* file, const ClassTreeMask& mask) |
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[1505] | 291 | { |
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[2087] | 292 | if (!file) |
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[1755] | 293 | return; |
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[1747] | 294 | for (ObjectList<BaseObject>::iterator it = ObjectList<BaseObject>::begin(); it; ) |
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[1505] | 295 | { |
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[2087] | 296 | if ((it->getFile() == file) && mask.isIncluded(it->getIdentifier())) |
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[5929] | 297 | (it++)->destroy(); |
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[1505] | 298 | else |
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| 299 | ++it; |
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| 300 | } |
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| 301 | } |
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| 302 | |
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[7648] | 303 | /** |
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| 304 | @brief |
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| 305 | Reloads the input file, while conforming to the restrictions given by the input ClassTreeMask. |
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| 306 | @param file |
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| 307 | The file to be reloaded. |
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| 308 | @param mask |
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| 309 | A ClassTreeMask, which defines which types of classes are reloaded and which aren't. |
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[8858] | 310 | @param bVerbose |
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[7648] | 311 | Whether the loader is verbose (prints its progress in a low output level) or not. |
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| 312 | @return |
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| 313 | Returns true if successful. |
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| 314 | */ |
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[8858] | 315 | bool Loader::reload(const XMLFile* file, const ClassTreeMask& mask, bool bVerbose) |
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[1505] | 316 | { |
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[2087] | 317 | Loader::unload(file, mask); |
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[8858] | 318 | return Loader::load(file, mask, bVerbose); |
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[1505] | 319 | } |
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[5695] | 320 | |
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[8079] | 321 | bool Loader::getLuaTags(const std::string& text, std::map<size_t, bool>& luaTags) |
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[5695] | 322 | { |
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[8079] | 323 | // fill map with all Lua tags |
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[5695] | 324 | { |
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| 325 | size_t pos = 0; |
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| 326 | while ((pos = text.find("<?lua", pos)) != std::string::npos) |
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| 327 | luaTags[pos++] = true; |
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| 328 | } |
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| 329 | { |
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| 330 | size_t pos = 0; |
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| 331 | while ((pos = text.find("?>", pos)) != std::string::npos) |
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| 332 | luaTags[pos++] = false; |
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| 333 | } |
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| 334 | |
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| 335 | // erase all tags from the map that are between two quotes |
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| 336 | { |
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| 337 | std::map<size_t, bool>::iterator it = luaTags.begin(); |
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[10264] | 338 | while(it != luaTags.end()) |
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[5695] | 339 | { |
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[10264] | 340 | if (isBetweenQuotes(text, it->first)) |
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[5695] | 341 | { |
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[10264] | 342 | luaTags.erase(it++); |
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[5695] | 343 | } |
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[10264] | 344 | else |
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| 345 | { |
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| 346 | ++it; |
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| 347 | } |
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[5695] | 348 | } |
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| 349 | } |
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| 350 | |
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| 351 | // check whether on every opening <?lua tag a closing ?> tag follows |
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| 352 | { |
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| 353 | bool expectedValue = true; |
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| 354 | for (std::map<size_t, bool>::iterator it = luaTags.begin(); it != luaTags.end(); ++it) |
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| 355 | { |
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| 356 | if (it->second == expectedValue) |
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| 357 | expectedValue = !expectedValue; |
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| 358 | else |
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| 359 | { |
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| 360 | expectedValue = false; |
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| 361 | break; |
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| 362 | } |
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| 363 | } |
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| 364 | if (!expectedValue) |
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| 365 | { |
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[10264] | 366 | orxout(internal_error, context::loader) << "Error parsing file: lua tags not matching" << endl; |
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[8079] | 367 | // TODO: error handling |
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[8858] | 368 | return false; |
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[5695] | 369 | } |
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| 370 | } |
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| 371 | |
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[8079] | 372 | return true; |
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| 373 | } |
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| 374 | |
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| 375 | std::string Loader::replaceLuaTags(const std::string& text) |
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| 376 | { |
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| 377 | // create a map with all lua tags |
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| 378 | std::map<size_t, bool> luaTags; |
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| 379 | if (!getLuaTags(text, luaTags)) |
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| 380 | return ""; |
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| 381 | |
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[5695] | 382 | // Use a stringstream object to speed up the parsing |
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| 383 | std::ostringstream output; |
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| 384 | |
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| 385 | // cut the original string into pieces and put them together with print() instead of lua tags |
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| 386 | { |
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| 387 | std::map<size_t, bool>::iterator it = luaTags.begin(); |
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| 388 | bool bInPrintFunction = true; |
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| 389 | size_t start = 0; |
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| 390 | size_t end = 0; |
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| 391 | |
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| 392 | do |
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| 393 | { |
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| 394 | if (it != luaTags.end()) |
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[6417] | 395 | end = (it++)->first; |
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[5695] | 396 | else |
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| 397 | end = std::string::npos; |
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| 398 | |
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| 399 | unsigned int equalSignCounter = 0; |
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| 400 | |
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| 401 | if (bInPrintFunction) |
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| 402 | { |
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| 403 | // count ['='[ and ]'='] and replace tags with print([[ and ]]) |
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[6417] | 404 | const std::string& temp = text.substr(start, end - start); |
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[5695] | 405 | { |
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| 406 | size_t pos = 0; |
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| 407 | while ((pos = temp.find('[', pos)) != std::string::npos) |
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| 408 | { |
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| 409 | unsigned int tempCounter = 1; |
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| 410 | size_t tempPos = pos++; |
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[6422] | 411 | while (temp[++tempPos] == '=') |
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[5695] | 412 | { |
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| 413 | tempCounter++; |
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| 414 | } |
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[6422] | 415 | if (temp[tempPos] != '[') |
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[5695] | 416 | { |
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| 417 | tempCounter = 0; |
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| 418 | } |
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[6422] | 419 | else if (tempCounter == 0) |
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[5695] | 420 | { |
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| 421 | tempCounter = 1; |
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| 422 | } |
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| 423 | if (tempCounter > equalSignCounter) |
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| 424 | equalSignCounter = tempCounter; |
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| 425 | } |
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| 426 | } |
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| 427 | { |
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| 428 | size_t pos = 0; |
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| 429 | while ((pos = temp.find(']', pos)) != std::string::npos) |
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| 430 | { |
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| 431 | unsigned int tempCounter = 1; |
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| 432 | size_t tempPos = pos++; |
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[6422] | 433 | while (temp[++tempPos] == '=') |
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[5695] | 434 | { |
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| 435 | tempCounter++; |
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| 436 | } |
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[6422] | 437 | if (temp[tempPos] != ']') |
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[5695] | 438 | { |
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| 439 | tempCounter = 0; |
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| 440 | } |
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[6422] | 441 | else if (tempCounter == 0) |
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[5695] | 442 | { |
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| 443 | tempCounter = 1; |
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| 444 | } |
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| 445 | if (tempCounter > equalSignCounter) |
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| 446 | equalSignCounter = tempCounter; |
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| 447 | } |
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| 448 | } |
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[6417] | 449 | std::string equalSigns; |
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[6422] | 450 | for (unsigned int i = 0; i < equalSignCounter; i++) |
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[5695] | 451 | { |
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[6417] | 452 | equalSigns += '='; |
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[5695] | 453 | } |
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[10264] | 454 | //A newline directly after square brackets is ignored. To make sure that the string is printed |
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| 455 | //exactly as it is, including newlines at the beginning, insert a space after the brackets. |
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| 456 | output << "print([" + equalSigns + "[ " + temp + ']' + equalSigns +"])"; |
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[5695] | 457 | start = end + 5; |
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| 458 | } |
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| 459 | else |
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| 460 | { |
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| 461 | output << text.substr(start, end - start); |
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| 462 | start = end + 2; |
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| 463 | } |
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| 464 | |
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| 465 | bInPrintFunction = !bInPrintFunction; |
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| 466 | } |
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| 467 | while (end != std::string::npos); |
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| 468 | } |
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| 469 | |
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| 470 | return output.str(); |
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| 471 | } |
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[8079] | 472 | |
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| 473 | std::string Loader::removeLuaTags(const std::string& text) |
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| 474 | { |
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| 475 | // create a map with all lua tags |
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| 476 | std::map<size_t, bool> luaTags; |
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| 477 | if (!getLuaTags(text, luaTags)) |
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| 478 | return ""; |
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| 479 | |
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| 480 | // Use a stringstream object to speed up the concatenation |
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| 481 | std::ostringstream output; |
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| 482 | |
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| 483 | // cut the original string into pieces and only write the non Lua parts |
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| 484 | std::map<size_t, bool>::iterator it = luaTags.begin(); |
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| 485 | bool bLuaCode = false; |
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| 486 | size_t start = 0; |
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| 487 | size_t end = 0; |
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| 488 | |
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| 489 | do |
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| 490 | { |
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| 491 | if (it != luaTags.end()) |
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| 492 | end = (it++)->first; |
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| 493 | else |
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| 494 | end = std::string::npos; |
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| 495 | |
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| 496 | if (!bLuaCode) |
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| 497 | { |
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| 498 | output << text.substr(start, end - start); |
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| 499 | start = end + 5; |
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| 500 | } |
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| 501 | else |
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[10264] | 502 | { |
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| 503 | //Preserve the amount of lines, otherwise the linenumber from the xml parse error is useless |
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| 504 | std::string tempstring = text.substr(start, end - start); |
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| 505 | output << std::string(std::count(tempstring.begin(), tempstring.end(), '\n'), '\n'); |
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[8079] | 506 | start = end + 2; |
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[10264] | 507 | } |
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[8079] | 508 | |
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| 509 | bLuaCode = !bLuaCode; |
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| 510 | } |
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| 511 | while (end != std::string::npos); |
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| 512 | |
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| 513 | return output.str(); |
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| 514 | } |
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[1505] | 515 | } |
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