mirror of https://github.com/Icinga/icinga2.git
152 lines
4.7 KiB
C++
152 lines
4.7 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2015 Icinga Development Team (http://www.icinga.org) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (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 *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef CONFIGCOMPILER_H
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#define CONFIGCOMPILER_H
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#include "config/i2-config.hpp"
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#include "config/expression.hpp"
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#include "base/debuginfo.hpp"
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#include "base/registry.hpp"
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#include "base/initialize.hpp"
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#include "base/singleton.hpp"
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#include <boost/function.hpp>
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#include <iostream>
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#include <stack>
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typedef union YYSTYPE YYSTYPE;
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typedef void *yyscan_t;
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namespace icinga
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{
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struct CompilerDebugInfo
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{
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const char *Path;
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int FirstLine;
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int FirstColumn;
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int LastLine;
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int LastColumn;
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operator DebugInfo(void) const
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{
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DebugInfo di;
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di.Path = Path;
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di.FirstLine = FirstLine;
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di.FirstColumn = FirstColumn;
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di.LastLine = LastLine;
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di.LastColumn = LastColumn;
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return di;
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}
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};
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struct EItemInfo
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{
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bool SideEffect;
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CompilerDebugInfo DebugInfo;
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};
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struct ZoneFragment
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{
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String Tag;
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String Path;
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};
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/**
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* The configuration compiler can be used to compile a configuration file
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* into a number of configuration items.
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*
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* @ingroup config
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*/
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class I2_CONFIG_API ConfigCompiler
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{
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public:
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explicit ConfigCompiler(const String& path, std::istream *input, const String& zone = String());
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virtual ~ConfigCompiler(void);
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Expression *Compile(void);
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static Expression *CompileStream(const String& path, std::istream *stream, bool async = true, const String& zone = String());
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static Expression *CompileFile(const String& path, bool async = true, const String& zone = String());
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static Expression *CompileText(const String& path, const String& text, bool async = true, const String& zone = String());
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static void AddIncludeSearchDir(const String& dir);
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const char *GetPath(void) const;
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void SetZone(const String& zone);
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String GetZone(void) const;
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static void CollectIncludes(std::vector<Expression *>& expressions, const String& file, const String& zone);
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/* internally used methods */
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Expression *HandleInclude(const String& include, bool search, const DebugInfo& debuginfo = DebugInfo());
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Expression *HandleIncludeRecursive(const String& path, const String& pattern, const DebugInfo& debuginfo = DebugInfo());
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Expression *HandleIncludeZones(const String& tag, const String& path, const String& pattern, const DebugInfo& debuginfo = DebugInfo());
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void HandleLibrary(const String& library);
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size_t ReadInput(char *buffer, size_t max_bytes);
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void *GetScanner(void) const;
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static std::vector<ZoneFragment> GetZoneDirs(const String& zone);
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private:
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boost::promise<boost::shared_ptr<Expression> > m_Promise;
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String m_Path;
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std::istream *m_Input;
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String m_Zone;
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void *m_Scanner;
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static std::vector<String> m_IncludeSearchDirs;
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static std::map<String, std::vector<ZoneFragment> > m_ZoneDirs;
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void InitializeScanner(void);
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void DestroyScanner(void);
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void CompileHelper(void);
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void HandleIncludeZone(const String& tag, const String& path, const String& pattern, std::vector<Expression *>& expressions);
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public:
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bool m_Eof;
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int m_OpenBraces;
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int m_IgnoreNewlines;
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std::ostringstream m_LexBuffer;
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CompilerDebugInfo m_LocationBegin;
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std::stack<bool> m_Apply;
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std::stack<bool> m_ObjectAssign;
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std::stack<bool> m_SeenAssign;
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std::stack<bool> m_SeenIgnore;
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std::stack<Expression *> m_Assign;
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std::stack<Expression *> m_Ignore;
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std::stack<String> m_FKVar;
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std::stack<String> m_FVVar;
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std::stack<Expression *> m_FTerm;
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};
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}
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#endif /* CONFIGCOMPILER_H */
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