0626

Author: jackycoder

computer.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 3.4.1, 2015-06-25T17:13:24. -->
+<!-- Written by QtCreator 3.4.1, 2015-06-26T16:55:35. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

utility.cpp

@@ -23,6 +23,7 @@ bool inToPost(QString &infixexp , QVector<QString> &postfixexp)
     {
         if(infixexp.at(var)>='0' && infixexp.at(var)<='9'){
             number->append(infixexp.at(var));
+            //qDebug() << *number;
         }else if('(' == infixexp.at(var)) {
             stack.push_back(infixexp.at(var));
         }else if (')' == infixexp.at(var)) {
@@ -45,6 +46,14 @@ bool inToPost(QString &infixexp , QVector<QString> &postfixexp)
             return false;
         }
     }
+
+    if(!number->isEmpty())
+        postfixexp.push_back(*number);
+
+    while (!stack.isEmpty()) {
+        QChar element= stack.pop();
+        postfixexp.push_back(element);
+    }
     return true;
  }
 
@@ -95,10 +104,11 @@ bool isoperator(QChar oper)
 
  void printQVector(QVector<QString> & vec)
  {
-     QVector<QString>::const_iterator it_string = vec.begin();
-     qDebug() << vec.size();
+     QVector<QString>::iterator it_string = vec.begin();
+     qDebug() << QString("postfixexpression size:") << vec.size();
      while(it_string != vec.end()){
          qDebug() << *it_string;
+         it_string++;
      }
 
  }

widget.cpp

@@ -109,7 +109,7 @@ void Widget::getComputeResult()
     QVector<QString> vec;
     if(!ui->digitinput->toPlainText().isEmpty())
         appendSequenceExpression(ui->digitinput->toPlainText());
-    qDebug() << getSequenceExpression();
+    qDebug() << "irginal expression:" <<getSequenceExpression();
     inToPost(getSequenceExpression() , vec);
     printQVector(vec);
 }