Hello to all monks,

I'm currently parsing a string with defined format (tag[value]) like this: 

while (m/(\w{1,2})\[(.+?)\]/g) {
  push(@{$hash{$1}},$2);
}

[download]
Now the value ($2 in code) should be allowed to have regex pattern within it. This causes the obvious problem of have tag like T[[pP]attern]. So i could go through the string one char at a time and calculate openings ([) so that i get the tag and value pairs, but it doens't look like perl (more like c).

So the question becomes, how to do that with regex? I cant figure out.

I extended it so that it wont hit this problem so easily, but it's just pushing the problem. 
 while (m/(\w{1,2})\[(.+?)\](?=(?:\w{1,2}\[)|\z)/g) {
  push(@{$hash{$1}},$2);
}

[download]
TIA

Edit by tye, escape [

In reply to Regex dynamics by Hena

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