adding cmdline parser

slsSupportLib/src/CmdLineParser.cpp

@@ -0,0 +1,67 @@
+
+#include "CmdLineParser.h"
+#include <cstdio>
+#include <cstring>
+#include <sstream>
+#include <iterator>
+#include <iostream>
+//printing function for debugging
+void CmdLineParser::Print()
+{
+    std::cout << "\nCmdLineParser::Print()\n";
+    std::cout << "\tmulti_id: " << multi_id_ << ", detector_id: " << detector_id_ << std::endl;
+    std::cout << "\tcommand: " << command_ << std::endl;
+    std::cout << "\targuments: ";
+    for (size_t i = 0; i < arguments_.size(); ++i) {
+        std::cout << arguments_[i] << " ";
+    }
+    std::cout << "\n\n";
+};
+
+void CmdLineParser::Parse(int argc, char* argv[])
+{
+    //first element of argv is the command used to call the executable ->skipping
+    //and if this is the only command skip all
+    if (argc > 1) {
+        //second element is cmd string that needs to be decoded
+        DecodeIdAndPosition(argv[1]);
+        //The rest of the arguments goes into a vector for later processing
+        for (int i = 2; i < argc; ++i)
+            arguments_.push_back(std::string(argv[i]));
+    }
+};
+
+void CmdLineParser::Parse(std::string s){
+  std::istringstream iss(s);
+  auto it =  std::istream_iterator<std::string>(iss);
+  //read the first element and increment
+  command_ = *it++;
+  arguments_ =  std::vector<std::string>(it, std::istream_iterator<std::string>());;
+  DecodeIdAndPosition(command_.c_str());
+}
+
+void CmdLineParser::DecodeIdAndPosition(const char* c)
+{
+    bool contains_id  = std::strchr(c, '-');
+    bool contains_pos = std::strchr(c, ':');
+    char tmp[100];
+
+    if (contains_id && contains_pos) {
+        int r = sscanf(c, "%d-%d:%s", &multi_id_, &detector_id_, tmp);
+        if (r != 3)
+            throw(std::invalid_argument("Cannot decode client or detector id from: \"" + std::string(c) + "\"\n"));
+        command_ = tmp;
+    } else if (contains_id && !contains_pos) {
+        int r = sscanf(c, "%d-%s", &multi_id_, tmp);
+        if (r != 2)
+            throw(std::invalid_argument("Cannot decode client id from: \"" + std::string(c) + "\"\n"));
+        command_ = tmp;
+    } else if (!contains_id && contains_pos) {
+        int r = sscanf(c, "%d:%s", &detector_id_, tmp);
+        if (r != 2)
+            throw(std::invalid_argument("Cannot decode detector id from: \"" + std::string(c) + "\"\n"));
+        command_ = tmp;
+    } else {
+        command_ = c;
+    }
+}