C＃-RegEx-获取两行之间的字符串

Question

I've been battling with this question for a couple of days now.

Question: How can I pull multiple strings that match my search criteria between two lines in C#?

Here is my current process:

1. Read all lines of a file.

    text_file = "C:\\test.txt"; string[] file_text = File.ReadAllLines(text_file); 

2. Loop through each line of the file and search for matches

    foreach (string line in file_text) { Regex r1 = new Regex(@"Processor\\(s\\):\\s+.+\\n\\s+(.+)\\nBIOS Version:"); Match match1 = r1.Match(line); if (match1.Success) { string processor = match1.Groups[1].Value; // Just to see if I matched anything System.Windows.MessageBox.Show(processor); } } 

3. Here is the example text:

    Processor(s): 1 Processor(s) Installed. [01]: Intel64 Family 6 Model 23 Stepping 10 GenuineIntel ~2826 Mhz BIOS Version: Phoenix Technologies LTD 6.00, 7/30/2013 

Problem: I used the website "RegExr" and "Regex101" which shows that the processor name should be captured in "Groups[1]" but nothing appears to be captured when I attempt to dump it to a message box.

Any advice would be greatly appreciated!

Thank you!

Answer 1

Change your code to read all of the file into a single string variable and then run the Regex against that:

text_file = "C:\test.txt";
string file_text = File.ReadAllText(text_file);

Regex r1 = new Regex(@"Processor\(s\):\s+.+\n\s+(.+)\nBIOS Version:");

Match match1 = r1.Match(file_text);