update

Author: lemonorangeapple

CMakeLists.txt

@@ -1,6 +1,3 @@
 cmake_minimum_required(VERSION 3.9)
-project(JunLang VERSION 1.14.11 LANGUAGES CXX)
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_CXX_EXTENSIONS OFF)
+project(JunLang)
 add_executable(JunLang src/main.cpp)

src/init.hpp

@@ -1,3 +1,7 @@
+/**
+ * Entry function of the program
+ * By lemonorangeapple
+**/
 #include <iostream>
 #include <cstdlib>
 #include <vector>
@@ -10,7 +14,7 @@
 using namespace std;
 #pragma GCC std("c++11")
 // Version of the program
-const string _VERSION_ = "v1.14.11";
+const string _VERSION_ = "v1.14.12";
 // Buffer size
 const int _BUFFER_SIZE_ = 1024;
 // All identifiers.

src/main.cpp

@@ -1,3 +1,7 @@
+/**
+ * Entry function of the program
+ * By lemonorangeapple
+**/
 #include "init.hpp"
 #include "read.hpp"
 #include "update.hpp"
@@ -7,12 +11,11 @@ int main(int argc, char* argv[]) {
         // Output usage.
         cout << "JunLang " << _VERSION_ << endl;
         cout << "Usage: " << argv[0] << " [filename]" << endl;
+        // Check update.
         update();
         exit(0);
     }
     // Read file.
     read(argv);
-    // Check update.
-    update();
     return 0;
 }

src/update.hpp

@@ -1,28 +1,37 @@
+/**
+ * Update function
+ * By lemonorangeapple
+**/
 #include <cstdlib>
 #include <cstdio>
 #include <string>
 
+// execute external command and store result in result
 string execute(const char *command) {
-    char buffer[1024];
-    char result[1024] = {0};
-    FILE *ptr;
-    strcpy(result, command);
-    if((ptr = popen(result, "r"))) {
-        while (fgets(buffer, 1024, ptr)) {
-           strcat(result, buffer);
-           if (strlen(result) > 1024) {
-               break;
-           }
-        }
-        pclose(ptr);
-        ptr = NULL;
-    }
-    return result;
+  char buffer[1024];
+  char result[1024] = {0};
+  FILE *ptr;
+  strcpy(result, command);
+  if((ptr = popen(result, "r"))) {
+      while (fgets(buffer, 1024, ptr)) {
+         strcat(result, buffer);
+         if (strlen(result) > 1024) {
+             break;
+         }
+      }
+      pclose(ptr);
+      ptr = NULL;
+  }
+  return result;
 }
 
+// update function
 void update() {
-    string result = execute("curl -s https://junlang.imjcj.eu.org/VERSION").substr(41);
-    if (result != _VERSION_) {
-        cout << "Warning: Upgrade JunLang: \"https://junlang.imjcj.eu.org\"" << endl;
-    }
+  // get version number from https://junlang.imjcj.eu.org/VERSION
+  string result = execute("curl -s https://junlang.imjcj.eu.org/VERSION").substr(44);
+  // compare version number with _VERSION_
+  if (result != _VERSION_ + '\n') {
+      cout << "Warning: Please update: \"https://junlang.imjcj.eu.org\"" << endl;
+  }
+  return;
 }