正则表达式匹配组

Question

main:
  lda #$5
  sta $2
  lda #$0
  sta $0  
  lda #$10    
  sta $1 

I'm looking for a regex that will match a Group like this: ["lda", "#$", "5"]. I've tried looking at tutorials for hours and it's still so very confusing to me.

Here's what I have attempted so far:

^(?<label>.*?)\s*(?<sign>[#][$])\s*(?<num>\d)$

It seems to match up only lda #$5

This is all in Visual Studios 2012 C#

Answer 1

(\\w+)\\s+((#\\$)(\\d+)|\\$\\d+)应该这样做： http : //regex101.com/r/pJ0yH8

Answer 2

You can use this regex:

(?<=^\s*)(\w+)\s(\D+)(\d)

The code would be like:

String input = "  lda #$5";
String pattern = @"(?<=^\s*)(\w+)\s(\D+)(\d+)$";

Match m = Regex.Match(input, pattern, RegexOptions.Multiline);

if (m.Groups.Count == 4) 
{
    string firstpart = m.Groups[1].ToString();  // lda
    string secondpart = m.Groups[2].ToString();  // #$
    string thirdpart = m.Groups[3].ToString();  // 5
}

Answer 3

Try this :

(\w+)\s+([^\d]+)(\d+)

above works for all the input you have provided.