add printing methods

lib/imc_channel.hpp

@@ -365,6 +365,40 @@ namespace imc
              <<"\"}";
       return ss.str();
     }
+
+    // print channel
+    void print(std::string filename, const char sep = ' ', int width = 25)
+    {
+      std::ofstream fou(filename);
+
+      // header
+      if ( sep == ' ' )
+      {
+        fou<<std::setw(width)<<std::left<<xname_
+          <<std::setw(width)<<std::left<<yname_<<"\n"
+          <<std::setw(width)<<std::left<<xunit_
+          <<std::setw(width)<<std::left<<yunit_<<"\n";
+      }
+      else
+      {
+        fou<<xname_<<sep<<yname_<<"\n"<<xunit_<<sep<<yunit_<<"\n";
+      }
+
+      for ( unsigned long int i = 0; i < xdata_.size(); i++ )
+      {
+        if ( sep == ' ' )
+        {
+          fou<<std::setw(width)<<std::left<<xdata_[i]
+             <<std::setw(width)<<std::left<<ydata_[i]<<"\n";
+        }
+        else
+        {
+          fou<<xdata_[i]<<sep<<ydata_[i]<<"\n";
+        }
+      }
+
+      fou.close();
+    }
   };
 
 }

lib/imc_raw.hpp

@@ -4,7 +4,7 @@
 #define IMCRAW
 
 #include <fstream>
-// #include <filesystem>
+#include <filesystem>
 
 #include "hexshow.hpp"
 #include "imc_key.hpp"
@@ -324,6 +324,28 @@ namespace imc
       return channels;
     }
 
+    // print all channels in directory
+    void print_channels(std::string output)
+    {
+      // check for given directory
+      std::filesystem::path pd = output;
+      if ( std::filesystem::is_directory(pd) )
+      {
+        throw std::runtime_error("given directory does not exist");
+      }
+
+      for ( std::map<std::string,imc::channel>::iterator it = channels_.begin();
+                                                         it != channels_.end(); ++it)
+      {
+        // construct filename
+        std::string filenam = std::string("channel_") + it->first + std::string(".csv");
+        std::filesystem::path pf = pd / filenam;
+
+        // and print the channel
+        it->second.print(pf);
+      }
+    }
+
   };
 
 }