Parsing a String in Visual C++

[bmerlover]

I want to parse out a string in Visual Studio .NET 2003 in C++. This is the format of the string:

T1 = "Hello"

It comes from a script file which I load into my gui app. It loads fine and I am currently using the split() function to get the word out. I have a problem using that because the way I have it setup, it only gets one word. So if it was

T1 = " Hello World"

then only Hello would be grabbed. Also I don't know why but there has to be a space in between the first quotation and Hello or else it will not work correctly. I thought of a different algorithm of acheiving the same solution.

int num, num1, num2;
String * temp;
 
for (int x = 0; x <= line->Length; x++) 
{    
    line = line->Trim();
}
num1 = line->IndexOf("\"");
num2 = line->LastIndexOf("\"");
num = num2-num1;
 
temp = line->Substring(num1, num);
 
richTextBox2->Text = temp;
 
 

It compiles fine but as soon as I load the Script File, it gives me an error. The idea behind this code is that I trim the whole line first so there's no whitespaces at all. Then I find the position of the first and second quotation. Afterwards I subtract num2 by num1 to find out how many characters there are inside the quotations. Finally I read the substring starting from the first quotation going up to the number of characters in the quotations.

Here is the complete current code that does work, but only for one word inside quotations.

 
                                                scriptString = richTextBox1->Text;
            scriptReader = new StringReader(scriptString);
 
            String* delimStr = S"=() :[] {}  \t \" ";
            Char delimiter[] = delimStr->ToCharArray();
            String* split[] = 0;
            int nextChar = 0;
            String* line = "";
            String* str;
            //String* str2;// = str1->Trim(delim->ToCharArray());
            //str2 = str2->ToString(str1->Trim(delim->ToCharArray()));
 
            //iterate over the string using the StringReader, printing each line. 
            while(nextChar >= 0)
            {    
                //reading line by line    
                line = scriptReader->ReadLine();
                //making sure it read correctly
                line = line->TrimStart(NULL);
                for (int x = 0; x <= line->Length; x++) 
                {    
                    //line = line->Trim(NULL);
                    split = line->Split(delimiter, x);
                    richTextBox1->AppendText(S"\ncount = {0, 2} .............."); 
                    richTextBox1->AppendText(__box(x)->ToString());
                    IEnumerator* myEnum = split->GetEnumerator();
 
                    while (myEnum->MoveNext()) 
                    {    //line = line->TrimStart(NULL);
                        String* s = __try_cast<String*>(myEnum->Current);
                        richTextBox1->AppendText(S" ");
                        richTextBox1->AppendText("Last s: ");
                        richTextBox1->AppendText(s);
 
                        //if (myEnum->MoveNext()) //save the last s (which is the name)
                        if(myEnum->MoveNext() && s != NULL)
                        {
                            str = s;
                        }
                    }
                }
 
 
                if(line->StartsWith("T1"))
                {
                    top1->Text = str;
                    defaultText(sender, e, top1);
                }
 
 
//check if there's any more lines
                nextChar = scriptReader->Peek();
 
 

My goal is to read inside the quotations somehow and save it into a string. It doesn't matter to me which alternative I use.

Thanks in advance, in the meantime I am going to be trying to figure out this myself as well.

[JosAH]

I'll move your thread over to the .NET Forum where it belongs.

kind regards,

Jos

[bmerlover]

I posted the solution in my other thread about quotations in richTextBox but I'll post it here too because it's the same answer.

As long as you write the script file inside the program, then the quotations work. Here is the code that works.

 
                        scriptString = richTextBox1->Text;
            scriptReader = new StringReader(scriptString);
 
            String* delimStr = S" =\"):[]{}"; 
            Char delimiter[] = delimStr->ToCharArray();
            String* split[] = 0;
            int nextChar = 0;
            int whiteSpaceCount = 0;
            String* line = "";
            String* str;
            String* space = S" ";
 
            //iterate over the string using the StringReader, printing each line. 
            while(nextChar >= 0)
            {    
                //reading line by line    
                line = scriptReader->ReadLine();
                //erase any whitespaces until you see the first character of the string
                line = line->TrimStart(NULL);
 
                for (int x = 0; x <= line->Length; x++) 
                {
                    split = line->Split(delimiter, x);                
                    IEnumerator* myEnum = split->GetEnumerator();
                    str = String::Join(space, split);
 
                    while (myEnum->MoveNext()) 
                    {    
                        String* s = __try_cast<String*>(myEnum->Current);
                    }
 
                }
 
                str = str->Substring(line->IndexOf("\"") + 1); 
 
                while(str->StartsWith(S" "))
                {
                    whiteSpaceCount++;
                    str = str->Substring(line->IndexOf("\"") + whiteSpaceCount);            
                }
 
                whiteSpaceCount = 0; //reset the counter, this counter is for white spaces in between the first quotation and the first word inside the quotation just incase there is a space. 
 
 
                if(line->StartsWith("T1"))
                {
                    top1->Text = str;
                    defaultText(sender, e, top1);
                }
 
                //check if there's any more lines
                nextChar = scriptReader->Peek();