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 "CommandExecutor.h" |
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30 | #include "ConsoleCommand.h" |
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31 | #include "util/String.h" |
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32 | #include "util/Convert.h" |
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33 | #include "Identifier.h" |
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34 | #include "Language.h" |
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35 | #include "Debug.h" |
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36 | #include "TclBind.h" |
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37 | |
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38 | namespace orxonox |
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39 | { |
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40 | CommandExecutor& CommandExecutor::getInstance() |
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41 | { |
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42 | static CommandExecutor instance; |
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43 | return instance; |
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44 | } |
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45 | |
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46 | CommandEvaluation& CommandExecutor::getEvaluation() |
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47 | { |
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48 | return CommandExecutor::getInstance().evaluation_; |
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49 | } |
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50 | |
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51 | const CommandEvaluation& CommandExecutor::getLastEvaluation() |
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52 | { |
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53 | return CommandExecutor::getInstance().evaluation_; |
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54 | } |
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55 | |
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56 | ConsoleCommand& CommandExecutor::addConsoleCommandShortcut(ConsoleCommand* command) |
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57 | { |
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58 | std::map<std::string, ConsoleCommand*>::const_iterator it = CommandExecutor::getInstance().consoleCommandShortcuts_.find(command->getName()); |
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59 | if (it != CommandExecutor::getInstance().consoleCommandShortcuts_.end()) |
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60 | { |
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61 | COUT(2) << "Warning: Overwriting console-command shortcut with name " << command->getName() << "." << std::endl; |
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62 | } |
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63 | |
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64 | |
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65 | CommandExecutor::getInstance().consoleCommandShortcuts_[command->getName()] = command; |
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66 | CommandExecutor::getInstance().consoleCommandShortcuts_LC_[getLowercase(command->getName())] = command; |
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67 | return (*command); |
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68 | } |
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69 | |
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70 | /** |
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71 | @brief Returns the executor of a console command shortcut with given name. |
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72 | @brief name The name of the requested console command shortcut |
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73 | @return The executor of the requested console command shortcut |
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74 | */ |
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75 | ConsoleCommand* CommandExecutor::getConsoleCommandShortcut(const std::string& name) |
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76 | { |
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77 | std::map<std::string, ConsoleCommand*>::const_iterator it = CommandExecutor::getInstance().consoleCommandShortcuts_.find(name); |
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78 | if (it != CommandExecutor::getInstance().consoleCommandShortcuts_.end()) |
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79 | return (*it).second; |
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80 | else |
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81 | return 0; |
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82 | } |
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83 | |
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84 | /** |
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85 | @brief Returns the executor of a console command shortcut with given name in lowercase. |
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86 | @brief name The name of the requested console command shortcut in lowercase |
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87 | @return The executor of the requested console command shortcut |
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88 | */ |
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89 | ConsoleCommand* CommandExecutor::getLowercaseConsoleCommandShortcut(const std::string& name) |
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90 | { |
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91 | std::map<std::string, ConsoleCommand*>::const_iterator it = CommandExecutor::getInstance().consoleCommandShortcuts_LC_.find(name); |
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92 | if (it != CommandExecutor::getInstance().consoleCommandShortcuts_LC_.end()) |
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93 | return (*it).second; |
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94 | else |
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95 | return 0; |
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96 | } |
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97 | |
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98 | bool CommandExecutor::execute(const std::string& command, bool useTcl) |
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99 | { |
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100 | if (useTcl) |
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101 | return TclBind::eval(command); |
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102 | |
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103 | if ((CommandExecutor::getEvaluation().getCommand() != command) || (CommandExecutor::getEvaluation().getState() == CS_Uninitialized)) |
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104 | CommandExecutor::parse(command); |
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105 | |
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106 | return CommandExecutor::getEvaluation().execute(); |
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107 | } |
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108 | |
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109 | std::string CommandExecutor::complete(const std::string& command) |
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110 | { |
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111 | if ((CommandExecutor::getEvaluation().getCommand() != command) || (CommandExecutor::getEvaluation().getState() == CS_Uninitialized)) |
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112 | CommandExecutor::parse(command); |
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113 | |
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114 | return CommandExecutor::getEvaluation().complete(); |
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115 | } |
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116 | |
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117 | std::string CommandExecutor::hint(const std::string& command) |
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118 | { |
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119 | if ((CommandExecutor::getEvaluation().getCommand() != command) || (CommandExecutor::getEvaluation().getState() == CS_Uninitialized)) |
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120 | CommandExecutor::parse(command); |
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121 | |
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122 | return CommandExecutor::getEvaluation().hint(); |
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123 | } |
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124 | |
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125 | CommandEvaluation CommandExecutor::evaluate(const std::string& command) |
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126 | { |
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127 | CommandExecutor::parse(command, true); |
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128 | CommandExecutor::getEvaluation().evaluateParams(); |
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129 | return CommandExecutor::getEvaluation(); |
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130 | } |
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131 | |
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132 | void CommandExecutor::parse(const std::string& command, bool bInitialize) |
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133 | { |
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134 | if (bInitialize) |
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135 | CommandExecutor::getEvaluation().initialize(command); |
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136 | else |
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137 | CommandExecutor::getEvaluation().setNewCommand(false); |
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138 | |
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139 | CommandExecutor::getEvaluation().setTokens(command + COMMAND_EXECUTOR_CURSOR); |
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140 | CommandExecutor::getEvaluation().setCommand(command); |
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141 | |
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142 | switch (CommandExecutor::getEvaluation().getState()) |
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143 | { |
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144 | case CS_Uninitialized: |
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145 | // Impossible |
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146 | break; |
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147 | case CS_Empty: |
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148 | CommandExecutor::createListOfPossibleIdentifiers(CommandExecutor::getArgument(0)); |
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149 | CommandExecutor::createListOfPossibleFunctions(CommandExecutor::getArgument(0)); |
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150 | |
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151 | if (CommandExecutor::argumentsGiven() > 0) |
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152 | { |
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153 | CommandExecutor::getEvaluation().setState(CS_ShortcutOrIdentifier); |
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154 | CommandExecutor::parse(command, false); |
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155 | return; |
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156 | } |
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157 | break; |
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158 | case CS_ShortcutOrIdentifier: |
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159 | if (CommandExecutor::argumentsFinished() > 0 || !CommandExecutor::getEvaluation().isNewCommand()) |
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160 | { |
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161 | // There's already a finished first argument - check if it's function or a classname |
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162 | CommandExecutor::getEvaluation().setIdentifier(CommandExecutor::getPossibleIdentifier(CommandExecutor::getArgument(0))); |
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163 | CommandExecutor::getEvaluation().setFunction(CommandExecutor::getPossibleCommand(CommandExecutor::getArgument(0))); |
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164 | |
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165 | if (CommandExecutor::getEvaluation().getFunction()) |
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166 | { |
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167 | // It's a shortcut - continue parsing |
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168 | CommandExecutor::getEvaluation().setState(CS_Shortcut_Params); |
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169 | if (CommandExecutor::argumentsFinished() > 0 ) |
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170 | CommandExecutor::parse(command, false); |
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171 | else |
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172 | CommandExecutor::parse(command + " ", false); |
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173 | return; |
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174 | } |
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175 | else if (CommandExecutor::getEvaluation().getIdentifier()) |
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176 | { |
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177 | // It's a classname - continue parsing |
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178 | CommandExecutor::getEvaluation().setState(CS_Function); |
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179 | if (CommandExecutor::argumentsFinished() > 0 ) |
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180 | CommandExecutor::parse(command, false); |
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181 | else |
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182 | CommandExecutor::parse(command + " ", false); |
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183 | return; |
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184 | } |
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185 | } |
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186 | |
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187 | if (CommandExecutor::argumentsFinished() == 0) |
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188 | { |
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189 | // There is no finished first argument |
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190 | unsigned int numIdentifiers = CommandExecutor::getEvaluation().getListOfPossibleIdentifiers().size(); |
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191 | unsigned int numCommands = CommandExecutor::getEvaluation().getListOfPossibleFunctions().size(); |
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192 | |
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193 | if (numCommands == 1 && numIdentifiers == 0) |
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194 | { |
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195 | // It must be this command |
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196 | const std::string* possibleCommand = (*CommandExecutor::getEvaluation().getListOfPossibleFunctions().begin()).second; |
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197 | CommandExecutor::getEvaluation().setState(CS_Shortcut_Params); |
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198 | CommandExecutor::getEvaluation().setFunction(CommandExecutor::getPossibleCommand(*possibleCommand)); |
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199 | CommandExecutor::parse(*possibleCommand + " ", false); |
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200 | return; |
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201 | } |
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202 | else if (numIdentifiers == 1 && numCommands == 0) |
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203 | { |
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204 | // It must be this classname |
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205 | const std::string* possibleIdentifier = (*CommandExecutor::getEvaluation().getListOfPossibleIdentifiers().begin()).second; |
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206 | CommandExecutor::getEvaluation().setState(CS_Function); |
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207 | CommandExecutor::getEvaluation().setIdentifier(CommandExecutor::getPossibleIdentifier(*possibleIdentifier)); |
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208 | CommandExecutor::parse(*possibleIdentifier + " ", false); |
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209 | return; |
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210 | } |
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211 | } |
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212 | |
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213 | // It's not a shortcut nor a classname |
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214 | CommandExecutor::getEvaluation().setState(CS_Error); |
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215 | AddLanguageEntry("commandexecutorunknownfirstargument", "is not a shortcut nor a classname"); |
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216 | CommandExecutor::getEvaluation().setError("Error: " + CommandExecutor::getArgument(0) + " " + GetLocalisation("commandexecutorunknownfirstargument") + "."); |
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217 | break; |
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218 | case CS_Function: |
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219 | if (CommandExecutor::getEvaluation().getIdentifier() && CommandExecutor::argumentsGiven() > 1) |
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220 | { |
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221 | if (CommandExecutor::argumentsFinished() > 1 || !CommandExecutor::getEvaluation().isNewCommand()) |
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222 | { |
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223 | // There is already a second argument - check if it's a valid function |
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224 | CommandExecutor::getEvaluation().setFunction(CommandExecutor::getPossibleCommand(CommandExecutor::getArgument(1), CommandExecutor::getEvaluation().getIdentifier())); |
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225 | |
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226 | if (CommandExecutor::getEvaluation().getFunction()) |
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227 | { |
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228 | // It's a shortcut - continue parsing |
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229 | CommandExecutor::getEvaluation().setState(CS_Function_Params); |
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230 | if (CommandExecutor::argumentsFinished() > 1 ) |
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231 | CommandExecutor::parse(command, false); |
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232 | else |
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233 | CommandExecutor::parse(command + " ", false); |
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234 | return; |
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235 | } |
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236 | } |
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237 | |
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238 | if (CommandExecutor::argumentsFinished() <= 1) |
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239 | { |
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240 | // There is no finished second argument |
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241 | CommandExecutor::createListOfPossibleFunctions(CommandExecutor::getArgument(0), CommandExecutor::getEvaluation().getIdentifier()); |
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242 | unsigned int numFunctions = CommandExecutor::getEvaluation().getListOfPossibleFunctions().size(); |
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243 | |
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244 | if (numFunctions == 1) |
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245 | { |
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246 | // It must be this command |
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247 | const std::string* possibleCommand = (*CommandExecutor::getEvaluation().getListOfPossibleFunctions().begin()).second; |
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248 | CommandExecutor::getEvaluation().setState(CS_Function_Params); |
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249 | CommandExecutor::getEvaluation().setFunction(CommandExecutor::getPossibleCommand(*possibleCommand)); |
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250 | CommandExecutor::parse(*possibleCommand + " ", false); |
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251 | return; |
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252 | } |
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253 | } |
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254 | |
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255 | // It's not a function |
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256 | AddLanguageEntry("commandexecutorunknowncommand", "is not a valid commandname"); |
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257 | CommandExecutor::getEvaluation().setError("Error: " + CommandExecutor::getArgument(1) + " " + GetLocalisation("commandexecutorunknowncommand") + "."); |
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258 | } |
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259 | |
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260 | // Bad state |
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261 | CommandExecutor::getEvaluation().setState(CS_Error); |
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262 | break; |
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263 | case CS_Shortcut_Params: |
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264 | case CS_Function_Params: |
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265 | if (CommandExecutor::getEvaluation().getFunction()) |
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266 | { |
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267 | unsigned int startindex = 0; |
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268 | if (CommandExecutor::getEvaluation().getState() == CS_Shortcut_Params) |
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269 | startindex = 1; |
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270 | else if (CommandExecutor::getEvaluation().getState() == CS_Function_Params) |
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271 | startindex = 2; |
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272 | |
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273 | if (CommandExecutor::argumentsGiven() >= startindex) |
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274 | { |
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275 | if (CommandExecutor::enoughArgumentsGiven(CommandExecutor::getEvaluation().getFunction())) |
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276 | { |
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277 | if (CommandExecutor::getEvaluation().getState() == CS_Shortcut_Params) |
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278 | CommandExecutor::getEvaluation().setState(CS_Shortcut_Finished); |
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279 | else if (CommandExecutor::getEvaluation().getState() == CS_Function_Params) |
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280 | CommandExecutor::getEvaluation().setState(CS_Function_Finished); |
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281 | return; |
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282 | } |
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283 | else |
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284 | { |
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285 | CommandExecutor::createListOfPossibleArguments(CommandExecutor::getLastArgument(), CommandExecutor::getEvaluation().getFunction(), CommandExecutor::getEvaluation().getOriginalTokens().size() - startindex); |
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286 | unsigned int numArguments = CommandExecutor::getEvaluation().getListOfPossibleArguments().size(); |
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287 | |
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288 | if (numArguments == 1) |
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289 | { |
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290 | // There is exactly one possible argument |
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291 | const std::string* possibleArgument = (*CommandExecutor::getEvaluation().getListOfPossibleArguments().begin()).second; |
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292 | CommandExecutor::parse(CommandExecutor::getEvaluation().getTokens().subSet(0, CommandExecutor::getEvaluation().getTokens().size() - 1 - startindex).join() + " " + (*possibleArgument) + " "); |
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293 | return; |
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294 | } |
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295 | |
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296 | if (!CommandExecutor::getEvaluation().isNewCommand()) |
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297 | { |
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298 | // There is more than one argument, but the user wants to use this - check if there is a perfect match |
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299 | const std::string* possibleArgument = CommandExecutor::getPossibleArgument(CommandExecutor::getLastArgument(), CommandExecutor::getEvaluation().getFunction(), CommandExecutor::getEvaluation().getOriginalTokens().size() - startindex); |
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300 | if (possibleArgument) |
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301 | { |
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302 | // There is such an argument - use it |
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303 | CommandExecutor::parse(command + " ", false); |
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304 | return; |
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305 | } |
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306 | } |
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307 | } |
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308 | } |
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309 | } |
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310 | |
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311 | // Bad state |
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312 | CommandExecutor::getEvaluation().setState(CS_Error); |
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313 | break; |
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314 | case CS_Shortcut_Finished: |
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315 | case CS_Function_Finished: |
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316 | case CS_Error: |
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317 | break; |
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318 | } |
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319 | } |
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320 | |
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321 | unsigned int CommandExecutor::argumentsFinished() |
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322 | { |
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323 | // Because we added a cursor we have +1 arguments |
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324 | if (CommandExecutor::getEvaluation().getTokens().size() >= 1) |
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325 | return (CommandExecutor::getEvaluation().getTokens().size() - 1); |
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326 | else |
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327 | return 0; |
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328 | } |
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329 | |
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330 | unsigned int CommandExecutor::argumentsGiven() |
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331 | { |
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332 | return CommandExecutor::getEvaluation().getOriginalTokens().size(); |
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333 | } |
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334 | |
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335 | bool CommandExecutor::enoughArgumentsGiven(ConsoleCommand* command) |
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336 | { |
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337 | if (CommandExecutor::getEvaluation().getIdentifier()) |
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338 | return (CommandExecutor::argumentsGiven() >= (2 + command->getParamCount())); |
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339 | else |
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340 | return (CommandExecutor::argumentsGiven() >= (1 + command->getParamCount())); |
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341 | } |
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342 | |
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343 | std::string CommandExecutor::getArgument(unsigned int index) |
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344 | { |
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345 | if ((index >= 0) && index < (CommandExecutor::getEvaluation().getOriginalTokens().size())) |
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346 | return CommandExecutor::getEvaluation().getOriginalTokens()[index]; |
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347 | else |
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348 | return ""; |
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349 | } |
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350 | |
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351 | std::string CommandExecutor::getLastArgument() |
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352 | { |
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353 | if (CommandExecutor::getEvaluation().getOriginalTokens().size() > 0) |
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354 | return CommandExecutor::getEvaluation().getOriginalTokens()[0]; |
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355 | else |
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356 | return ""; |
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357 | } |
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358 | |
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359 | void CommandExecutor::createListOfPossibleIdentifiers(const std::string& fragment) |
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360 | { |
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361 | for (std::map<std::string, Identifier*>::const_iterator it = Identifier::getLowercaseIdentifierMapBegin(); it != Identifier::getLowercaseIdentifierMapEnd(); ++it) |
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362 | if ((*it).second->hasConsoleCommands()) |
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363 | if ((*it).first.find(getLowercase(fragment)) == 0 || fragment == "") |
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364 | CommandExecutor::getEvaluation().getListOfPossibleIdentifiers().push_back(std::pair<const std::string*, const std::string*>(&(*it).first, &(*it).second->getName())); |
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365 | |
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366 | CommandExecutor::getEvaluation().getListOfPossibleIdentifiers().sort(CommandExecutor::compareStringsInList); |
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367 | } |
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368 | |
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369 | void CommandExecutor::createListOfPossibleFunctions(const std::string& fragment, Identifier* identifier) |
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370 | { |
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371 | if (!identifier) |
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372 | { |
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373 | for (std::map<std::string, ConsoleCommand*>::const_iterator it = CommandExecutor::getLowercaseConsoleCommandShortcutMapBegin(); it != CommandExecutor::getLowercaseConsoleCommandShortcutMapEnd(); ++it) |
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374 | if ((*it).first.find(getLowercase(fragment)) == 0 || fragment == "") |
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375 | CommandExecutor::getEvaluation().getListOfPossibleFunctions().push_back(std::pair<const std::string*, const std::string*>(&(*it).first, &(*it).second->getName())); |
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376 | } |
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377 | else |
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378 | { |
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379 | for (std::map<std::string, ConsoleCommand*>::const_iterator it = identifier->getLowercaseConsoleCommandMapBegin(); it != identifier->getLowercaseConsoleCommandMapEnd(); ++it) |
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380 | if ((*it).first.find(getLowercase(fragment)) == 0 || fragment == "") |
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381 | CommandExecutor::getEvaluation().getListOfPossibleFunctions().push_back(std::pair<const std::string*, const std::string*>(&(*it).first, &(*it).second->getName())); |
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382 | } |
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383 | CommandExecutor::getEvaluation().getListOfPossibleFunctions().sort(CommandExecutor::compareStringsInList); |
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384 | } |
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385 | |
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386 | void CommandExecutor::createListOfPossibleArguments(const std::string& fragment, ConsoleCommand* command, unsigned int param) |
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387 | { |
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388 | for (std::list<std::pair<std::string, std::string> >::const_iterator it = command->getArgumentCompletionListBegin(param); it != command->getArgumentCompletionListEnd(param); ++it) |
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389 | if ((*it).first.find(getLowercase(fragment)) == 0 || fragment == "") |
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390 | CommandExecutor::getEvaluation().getListOfPossibleArguments().push_back(std::pair<const std::string*, const std::string*>(&(*it).first, &(*it).second)); |
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391 | |
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392 | CommandExecutor::getEvaluation().getListOfPossibleIdentifiers().sort(CommandExecutor::compareStringsInList); |
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393 | |
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394 | } |
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395 | |
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396 | Identifier* CommandExecutor::getPossibleIdentifier(const std::string& name) |
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397 | { |
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398 | std::map<std::string, Identifier*>::const_iterator it = Identifier::getLowercaseIdentifierMap().find(getLowercase(name)); |
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399 | if ((it != Identifier::getLowercaseIdentifierMapEnd()) && (*it).second->hasConsoleCommands()) |
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400 | return (*it).second; |
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401 | |
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402 | return 0; |
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403 | } |
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404 | |
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405 | ConsoleCommand* CommandExecutor::getPossibleCommand(const std::string& name, Identifier* identifier) |
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406 | { |
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407 | if (!identifier) |
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408 | { |
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409 | std::map<std::string, ConsoleCommand*>::const_iterator it = CommandExecutor::getLowercaseConsoleCommandShortcutMap().find(getLowercase(name)); |
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410 | if (it != CommandExecutor::getLowercaseConsoleCommandShortcutMapEnd()) |
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411 | return (*it).second; |
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412 | } |
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413 | else |
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414 | { |
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415 | std::map<std::string, ConsoleCommand*>::const_iterator it = identifier->getLowercaseConsoleCommandMap().find(getLowercase(name)); |
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416 | if (it != identifier->getLowercaseConsoleCommandMapEnd()) |
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417 | return (*it).second; |
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418 | } |
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419 | return 0; |
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420 | } |
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421 | |
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422 | const std::string* CommandExecutor::getPossibleArgument(const std::string& name, ConsoleCommand* command, unsigned int param) |
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423 | { |
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424 | std::string lowercasename = getLowercase(name); |
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425 | for (std::list<std::pair<std::string, std::string> >::const_iterator it = command->getArgumentCompletionListBegin(param); it != command->getArgumentCompletionListEnd(param); ++it) |
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426 | if ((*it).first == lowercasename) |
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427 | return &(*it).second; |
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428 | |
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429 | return 0; |
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430 | } |
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431 | |
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432 | bool CommandExecutor::compareStringsInList(const std::pair<const std::string*, const std::string*>& first, const std::pair<const std::string*, const std::string*>& second) |
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433 | { |
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434 | return ((*first.first) < (*second.first)); |
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435 | } |
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436 | } |
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