description implementation! version already has one

src/help/descriptions.cpp

@@ -0,0 +1,26 @@
+#include <map>
+#include <string>
+
+#include "help.hpp"
+
+map<string,string> description_map;
+
+void cellar::help::set_description(string command, string description) {
+    if (description.empty()) {
+        if (description_map.find(command) == description_map.end()) { // not found
+            return; // no description no cry
+        } else {
+            description_map.erase(command);
+        }
+    } else { // setting description
+        description_map[command] = description;
+    }
+}
+
+string cellar::help::get_description(string command) {
+    if (description_map.find(command) == description_map.end()) { // not found
+        return "";
+    } else {
+        return description_map.at(command);
+    }
+}

src/help/help.cpp

@@ -1,28 +1,32 @@
+#include <iostream>
+#include <sstream>
 #include <string>
 #include <vector>
 
 #include "cellar.hpp"
 #include "internal/core.hpp"
-#include "help.cpp"
+#include "help.hpp"
+#include "output.hpp"
 
 using namespace std;
+using namespace cellar;
 
 void cellar::commands::help_command(int argc, vector<string> argv) {
     vector<string> commands = list_commands();
     cellar::print_header();
 
-    cout << "You have these commands:\n" << endl;
+    cout << endl; // TODO: cellar::output function for code clarity
 
-    int num_columns = 4;
-    int cur_column = 1;
+    output::statement("You have these commands:");
+    stringstream sstr;
     for (string command : commands) {
-        cout << "\t" << command;
-        if (cur_column == num_columns) {
-            cout << endl;
-            cur_column = 1;
-        } else {
-            cur_column++;
+        sstr << "\t" << command;
+        
+        string desc = help::get_description(command);
+        if (!desc.empty()) {
+            sstr << " - " << desc;
         }
+        output::statement(sstr.str());
+        sstr.str("");
     }
-    cout << endl;
 }