need help converting perl regex to python

Question

I need to port some Perl code to python, and Im not very familiar with Perl..

if (($fieldsParsed==0)&(/\/\/ address,.*/)) {
                push (@reservedMemoryArray,$_);
                $fieldsParsed = 1;
            }

I need help understanding this regexp. what does the /\/\/ address,.*/ mean? and if this regex matches, the next line is pushed into the array, right?

Thanks

The actual regex is \/\/ address,.*. / is most probably the delimiter, which is not needed in Python. I can't read Perl code, though, so I don't know what is happening in your code. — nhahtdh
– nhahtdh, Commented Jan 7, 2014 at 8:27
Quite human readable help: tutorialspoint.com/perl/perl_regular_expression.htm — jpe
– jpe, Commented Jan 7, 2014 at 8:29

Toto · Accepted Answer · 2014-01-07 08:28:21Z

3

The meaning of /\/\/ address,.*/:

/           : delimiter
\/\/        : two slashes
 address,   : literally ' address,'
.*          : any char 0 or more times
/           : delimiter

It returns true if the current $_ contains // address, whatever you want.....

answered Jan 7, 2014 at 8:28

Toto

91.7k63 gold badges97 silver badges135 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

WeaselFox Over a year ago

ah, ok. I was not aware of this delimiter syntax in Perl. If I just copy paste this regex into re.match I should remove those?

Toto Over a year ago

@WeaselFox: yes you should.

jpe Over a year ago

The outer slashes actually mark the match operator. As the doc says: "You can omit the m from m// if the delimiters are forward slashes, but for all other delimiters you must use the m prefix."

Collectives™ on Stack Overflow

need help converting perl regex to python

1 Answer 1

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related