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rasanpedromujica
277
src/script.h
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277
src/script.h
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/**
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* Tibia GIMUD Server - a free and open-source MMORPG server emulator
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* Copyright (C) 2017 Alejandro Mujica <alejandrodemujica@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef FS_SCRIPT_H_2905B3D5EAB34B4BA8830167262D2DC1
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#define FS_SCRIPT_H_2905B3D5EAB34B4BA8830167262D2DC1
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#include "tools.h"
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enum TOKEN
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{
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ENDOFFILE = 0,
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IDENTIFIER,
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NUMBER,
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STRING,
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BYTES,
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COORDINATE,
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SPECIAL
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};
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class ScriptReader
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{
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public:
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ScriptReader()
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{
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Token = ENDOFFILE;
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RecursionDepth = -1;
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}
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~ScriptReader()
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{
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if (RecursionDepth != -1)
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{
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std::cout << "ScriptReader::~ScriptReader: File is still open.\n";
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for (int i = RecursionDepth; i != -1; i = RecursionDepth)
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{
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if (fclose(File[i]))
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{
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std::cout << "ScriptReader::close: Error when closing the file.\n";
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}
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--RecursionDepth;
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}
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}
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}
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TOKEN Token;
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FILE* File[3];
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int RecursionDepth;
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char Filename[3][4096];
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std::string CurrentDirectory;
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std::string String;
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unsigned char Bytes[1000];
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int Line[3];
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int Number;
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uint16_t CoordX;
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uint16_t CoordY;
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uint8_t CoordZ;
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char Special;
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bool open(const std::string& FileName)
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{
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RecursionDepth++;
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if (RecursionDepth == 3)
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{
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error("ScriptReader::open: too big recursion.\n");
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error("Recursion depth too high.\n");
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return false;
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}
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if (RecursionDepth > -1)
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{
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CurrentDirectory = FileName;
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if (FileName.find('/') != std::string::npos) {
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int32_t end = FileName.find_last_of('/');
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CurrentDirectory = FileName.substr(0, end);
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strcpy(Filename[RecursionDepth], FileName.substr(end + 1, FileName.length() - end).c_str());
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} else {
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strcpy(Filename[RecursionDepth], FileName.c_str());
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}
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File[RecursionDepth] = fopen(FileName.c_str(), "rb");
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if (!File[RecursionDepth])
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{
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printf("ScriptReader::open: Can not open file %s.\n", FileName.c_str());
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RecursionDepth--;
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printf("Cannot open script-file\n");
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return false;
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}
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}
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Line[RecursionDepth] = 1;
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return true;
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}
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void close()
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{
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int depth; // eax@1
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depth = RecursionDepth;
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if (depth == -1)
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{
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std::cout << "ScriptReader::close: Invalid recursion depth.\n";
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} else
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{
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if (fclose(this->File[depth]))
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{
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std::cout << "ScriptReader::close: Error when closing file.\n";
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}
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--RecursionDepth;
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}
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}
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void error(const std::string& text)
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{
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int depth = this->RecursionDepth;
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if (depth != -1)
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{
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printf("error in script-file \"%s\", line %d: %s\n", Filename[this->RecursionDepth], this->Line[this->RecursionDepth], text.c_str());
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do
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{
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if (fclose(this->File[depth]))
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{
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std::cout << "ScriptReader::close: Error when closing file.\n";
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}
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--this->RecursionDepth;
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depth = this->RecursionDepth;
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} while (this->RecursionDepth != -1);
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}
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}
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void nextToken();
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std::string readIdentifier()
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{
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nextToken();
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if (this->Token != IDENTIFIER)
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error("identifier expected");
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if (this->Token != IDENTIFIER)
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error("identifier expected");
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String = asLowerCaseString(String);
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return std::string(this->String);
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}
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int readNumber()
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{
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TOKEN v1; // edx@1
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int v2; // esi@1
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nextToken();
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v1 = this->Token;
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v2 = 1;
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if (this->Token == SPECIAL && this->Special == 45)
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{
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v2 = -1;
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nextToken();
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v1 = this->Token;
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}
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if (v1 != NUMBER)
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error("number expected");
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if (this->Token != NUMBER)
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error("number expected");
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return this->Number * v2;
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}
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std::string readString()
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{
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nextToken();
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if (this->Token != STRING)
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error("string expected");
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if (this->Token != STRING)
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error("string expected");
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return this->String;
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}
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uint8_t* readBytesequence()
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{
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nextToken();
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if (this->Token != 4)
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error("byte-sequence expected");
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if (this->Token != 4)
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error("byte-sequence expected");
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return this->Bytes;
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}
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void readCoordinate(uint16_t& x, uint16_t& y, uint8_t& z)
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{
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nextToken();
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if (this->Token != COORDINATE)
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error("coordinates expected");
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if (this->Token != COORDINATE)
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error("coordinates expected");
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x = this->CoordX;
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y = this->CoordY;
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z = this->CoordZ;
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}
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int readSpecial()
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{
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nextToken();
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if (this->Token != SPECIAL)
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error("special-char expected");
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if (this->Token != SPECIAL)
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error("special-char expected");
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return this->Special;
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}
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void readSymbol(char Symbol)
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{
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nextToken();
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if (this->Token != SPECIAL)
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error("special-char expected");
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if (Symbol != this->Special)
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error("special-char expected");
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}
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std::string getIdentifier()
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{
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if (this->Token != IDENTIFIER)
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error("identifier expected");
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String = asLowerCaseString(String);
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return this->String;
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}
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int getNumber()
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{
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if (this->Token != NUMBER)
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error("number expected");
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return this->Number;
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}
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std::string getString()
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{
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if (this->Token != STRING)
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error("string expected");
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return this->String;
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}
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uint8_t* getBytesequence()
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{
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if (this->Token != BYTES)
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error("byte-sequence expected");
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return this->Bytes;
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}
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void getcoordinate(int32_t& x, int32_t& y, int32_t& z)
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{
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if (this->Token != COORDINATE)
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error("coordinates expected");
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x = this->CoordX;
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y = this->CoordY;
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z = this->CoordZ;
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}
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int getSpecial()
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{
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if (this->Token != SPECIAL)
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error("special-char expected");
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return this->Special;
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}
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};
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#endif
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