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00001 // ======================================================================== // 00002 // // 00003 // File : FileFilter.cpp // 00004 // Purpose : // 00005 // Time-stamp: <Sat May/04/2002 16:51 MET Coder@ReallySoft.de> // 00006 // // 00007 // (C) May 2002 by Ralf Westram // 00008 // // 00009 // Permission to use, copy, modify, distribute and sell this software // 00010 // and its documentation for any purpose is hereby granted without fee, // 00011 // provided that the above copyright notice appear in all copies and // 00012 // that both that copyright notice and this permission notice appear // 00013 // in supporting documentation. // 00014 // // 00015 // Ralf Westram makes no representations about the suitability of this // 00016 // software for any purpose. It is provided "as is" without express or // 00017 // implied warranty. // 00018 // // 00019 // ======================================================================== // 00020 00021 #include "FileFilter.h" 00022 #include <sys_dep.h> 00023 #include <fstream> 00024 00025 00026 using namespace std; 00027 using namespace rs; 00028 using namespace rs::str; 00029 using namespace rs::sys_dep; 00030 00031 namespace rs { 00032 namespace file { 00033 namespace filter { 00034 00035 // ---------------------------------------------------- 00036 // static bool isInputName(const string *arg) 00037 // ---------------------------------------------------- 00038 static bool isInputName(const string *arg) { 00039 bool stdinRedirected = !is_a_TTY(stdin); 00040 return stdinRedirected ? arg==0 : arg!=0; 00041 } 00042 // ----------------------------------------------------- 00043 // static bool isOutputName(const string *arg) 00044 // ----------------------------------------------------- 00045 static bool isOutputName(const string *arg) { 00046 bool stdoutRedirected = !is_a_TTY(stdout); 00047 return stdoutRedirected ? arg==0 : arg!=0; 00048 } 00049 00050 // start of implementation of class FileFilter: 00051 00052 // ------------------------------------------------------------------------------------------------- 00053 // void FileFilter::init(cmdline::CmdLineArgument& input, cmdline::CmdLineArgument& output) 00054 // ------------------------------------------------------------------------------------------------- 00055 void FileFilter::init(cmdline::CmdLineArgument& input, cmdline::CmdLineArgument& output) 00056 { 00057 out = 0; 00058 is_stdout = false; 00059 in = input ? new InputFile(input.get()) : new InputFile(); 00060 00061 if (output) { 00062 out = new ofstream(output.get().c_str()); 00063 is_stdout = false; 00064 } 00065 else { 00066 out = &cout; 00067 is_stdout = true; 00068 } 00069 } 00070 00071 // -end- of implementation of class FileFilter. 00072 00073 // start of implementation of class FilterArguments: 00074 00075 // ---------------------------------------------------------------------------------------------- 00076 // FilterArguments::FilterArguments(const string& input_type, const string& output_type) 00077 // ---------------------------------------------------------------------------------------------- 00078 FilterArguments::FilterArguments(const string& input_type, const string& output_type) 00079 : input("input", strf("name of %s-inputfile", input_type.c_str()).c_str(), isInputName) 00080 , output("output", strf("name of %s-outputfile", output_type.c_str()).c_str(), isOutputName) 00081 , arg_info("If you redirect I/O to/from a file, the corresponding filename may be omitted.") 00082 { 00083 } 00084 00085 // -end- of implementation of class FilterArguments. 00086 00087 }; 00088 }; 00089 };
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