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85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#ifndef cmProcessTools_h
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#define cmProcessTools_h
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#include "cmStandardIncludes.h"
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/** \class cmProcessTools
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* \brief Helper classes for process output parsing
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*
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*/
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class cmProcessTools
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{
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public:
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/** Abstract interface for process output parsers. */
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class OutputParser
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{
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public:
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/** Process the given output data from a tool. Processing may be
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done incrementally. Returns true if the parser is interested
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in any more data and false if it is done. */
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bool Process(const char* data, int length)
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{ return this->ProcessChunk(data, length); }
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virtual ~OutputParser() {}
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protected:
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/** Implement in a subclass to process a chunk of data. It should
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return true only if it is interested in more data. */
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virtual bool ProcessChunk(const char* data, int length) = 0;
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};
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/** Process output parser that extracts one line at a time. */
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class LineParser: public OutputParser
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{
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public:
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/** Construct with line separation character and choose whether to
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ignore carriage returns. */
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LineParser(char sep = '\n', bool ignoreCR = true);
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/** Configure logging of lines as they are extracted. */
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void SetLog(std::ostream* log, const char* prefix);
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protected:
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char Separator;
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bool IgnoreCR;
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std::ostream* Log;
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const char* Prefix;
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std::string Line;
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virtual bool ProcessChunk(const char* data, int length);
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/** Implement in a subclass to process one line of input. It
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should return true only if it is interested in more data. */
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virtual bool ProcessLine() = 0;
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};
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/** Trivial line handler for simple logging. */
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class OutputLogger: public LineParser
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{
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public:
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OutputLogger(std::ostream& log, const char* prefix = 0)
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{ this->SetLog(&log, prefix); }
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private:
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virtual bool ProcessLine() { return true; }
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};
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/** Run a process and send output to given parsers. */
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static void RunProcess(struct cmsysProcess_s* cp,
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OutputParser* out, OutputParser* err = 0);
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};
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#endif
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