标签=值的正则表达式

Question

I need to build a single regex to match this 2 kinds of line:

1)SBNID=304,MENAME=RV0714,MEID=122,CELLID=4,CELLNAME=LRV0714D

2)MBTS_ACN1_RJ/ETHPORT:Cabinet No.=0, Subrack No.=0, Slot No.=7, Port No.=0, Subboard Type=BASE_BOARD

The output must be: For the first (1):

SBNID , MENAME , MEID , CELLID , CELLNAME

For the second (2):

Cabinet No. , Subrack No , Slot No. , Port No , Subboard Type

PS: Since my code process each input by time, I need to process first the input one, then input 2, not both together

I already tried:

(?<![^:,])[^=]+

Works for the second case, but for the first case it not returns SBNID

I am using pcre(php) regex

Answer 1

If I understand your requirements correctly, you're looking for key/value pairs. This could be achieved via

(?P<key>\b[A-Za-z\h.]+)=(?P<value>\w+)

See a demo on regex101.com.

---

Broken down this says:

(?P<key>\b[A-Za-z\h.]+) # capture A-Z, a-z or horizontal whitespaces 
                        # into group "key"
=                       # = literally
(?P<value>\w+)          # capture A-Z, a-z, 0-9 and _ 
                        # into group "value"

---

Glued together in PHP this would be:

<?php

$string = "SBNID=304,MENAME=RV0714,MEID=122,CELLID=4,CELLNAME=LRV0714D
MBTS_ACN1_RJ/ETHPORT:Cabinet No.=0, Subrack No.=0, Slot No.=7, Port No.=0, Subboard Type=BASE_BOARD";

$regex = '~(?P<key>\b[A-Za-z\h.]+)=(?P<value>\w+)~';

preg_match_all($regex, $string, $matches, PREG_SET_ORDER);

foreach ($matches as $match) {
    print_r($match);
}

?>

See a demo on ideone.com.