Find exact match with regular expression without preleading string in python-CodePudding

I have a text file called my_file.txt that has the following content:

                                  R.A.O.S-VARIATION WITH WAVE PERIOD/FREQUENCY
                              VEL R.A.O.S-VARIATION WITH WAVE PERIOD/FREQUENCY
                              ACC R.A.O.S-VARIATION WITH WAVE PERIOD/FREQUENCY
                              SOME OTHER STRING

Now, I want to find the string R.A.O.S-VARIATION WITH WAVE PERIOD/FREQUENCY without any of the two other choises that have either VEL or ACC in it using a regular expression. There are white spaces before those strings.

How do I get the correct match using:

re.search(regex, line)

How should the regular expression look like that finds the desired string, without the two other options? I prefer to not specify all preleading white spaces in the string.

CodePudding user response：

What you can do is remove the leading whitespace using the .lstrip() function and then search for the string.

re.search(regex, line.lstrip())

CodePudding user response：

re.findall(r'R.A.O.S-VARIATION WITH WAVE PERIOD/FREQUENCY', line)