Add a GUI

Implement a Qt GUI which can help process both online (from ET) and offline runs (from data file)

conf_src/ConfigObject.cpp

@@ -9,6 +9,7 @@
 // 10/31/2016                                                                 //
 //============================================================================//
 
+#include <cstdlib>
 #include <fstream>
 #include <iostream>
 #include <iomanip>
@@ -16,7 +17,6 @@
 #include "ConfigObject.h"
 
 
-
 //============================================================================//
 // Constructor, Destructor                                                    //
 //============================================================================//
@@ -26,7 +26,7 @@ ConfigObject::ConfigObject(const std::string &splitter, const std::string &ignor
 : split_chars(splitter), ignore_chars(ignore), case_insensitive(case_ins), __empty_value("")
 {
     // set default replace bracket
-    replace_pair = std::make_pair("{", "}");
+    replace_pair = std::make_pair("${", "}");
 }
 
 // destructor
@@ -79,36 +79,33 @@ bool ConfigObject::ReadConfigFile(const std::string &path)
 }
 
 // read the configuration string directly
-void ConfigObject::ReadConfigString(const std::string &content)
+void ConfigObject::ReadConfigString(const std::string &content, const std::string &path)
 {
     ConfigParser c_parser;
     c_parser.SetSplitters(split_chars);
 
     c_parser.ReadBuffer(content.c_str());
 
-    parserProcess(c_parser, "buffer_string");
+    parserProcess(c_parser, path);
 }
 
 // continue parse the terms
 void ConfigObject::parserProcess(ConfigParser &c_parser, const std::string &source)
 {
-    std::string cur_dir = ConfigParser::decompose_path(source).dir;
+    char abs_path[2048];
+    realpath(source.c_str(), abs_path);
+    std::string cur_dir = ConfigParser::decompose_path(abs_path).dir;
+    SetConfigValue("THIS_DIR", cur_dir);
 
     while (c_parser.ParseLine()) {
         // possible control words
         if (c_parser.NbofElements() == 1) {
             std::string control = c_parser.TakeFirst();
-            size_t pos = control.find("{THIS_DIR}");
-            if(pos != std::string::npos)
-                control.replace(pos, 10, cur_dir);
             parseControl(control);
         // var_name and var_value
         } else if (c_parser.NbofElements() == 2) {
             std::string var_name, key, var_value;
             c_parser >> var_name >> var_value;
-            size_t pos = var_value.find("{THIS_DIR}");
-            if(pos != std::string::npos)
-                var_value.replace(pos, 10, cur_dir);
             parseTerm(std::move(var_name), std::move(var_value));
         // unsupported format
         } else {
@@ -258,17 +255,7 @@ const
             reform(var, op, cl);
 
             // replace content
-            std::string val;
-
-            // environment variable
-            if (rpair.first > 0 && input.at(rpair.first - 1) == '$') {
-                val = std::getenv(var.c_str());
-                // replace $ mark also
-                rpair.first--;
-            // ConfigObject variable
-            } else {
-                val = GetConfigValue(var)._value;
-            }
+            std::string val = HasKey(var) ? GetConfigValue(var)._value : std::getenv(var.c_str());
 
             // replace variable with configuration value
             input.replace(rpair.first, rpair.second - rpair.first + cl.size(), val);