Using regex to find block containing a certain word

Question

I'm trying to find blocks like these using regex. An example of the code I'm trying to find is shown bellow,

entity //This is what I want to select
{
    "id" "2"
    "classname" "light"   //This is what it should contain
    "_light" "255 255 255 200"
    "_lightHDR" "-1 -1 -1 1"
    "_lightscaleHDR" "1"
    "_quadratic_attn" "1"
    "origin" "-128 0 -128"
    editor
    {
        "color" "220 30 220"
        "visgroupshown" "1"
        "visgroupautoshown" "1"
        "logicalpos" "[0 0]"
    }
}

How would I go forward finding this block? Blocks not containing "classname" "light" should not be selected. Can anyone help me out?

is it classname fix and light variable ?

Jorge Campos
– Jorge Campos

2013-12-08 05:10:57 +00:00
Commented Dec 8, 2013 at 5:10 — Jorge Campos
– Jorge Campos, Commented Dec 8, 2013 at 5:10

Bohemian · Accepted Answer · 2014-03-27 12:08:25Z

4

Try this:

entity\s*\{[^}]*"classname" "light"[^}]*\}\s*\}

The key term here is [^}]*, which ensures the match doesn't run over to the next block.

See a live demo of this regex in action with your example and a non-matching example.

edited Mar 27, 2014 at 12:08

answered Dec 8, 2013 at 5:14

Bohemian♦

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3 Comments

Mats Bakken Over a year ago

Exactly what I was looking for! Thank you so much! Regex is pretty confusing if you don't have experience with it.

Bohemian Over a year ago

@mats it's worth learning. You would be surprised how many occasions you can use it and save yourself lots of code.

Mats Bakken Over a year ago

I know this is a very late reply, but I just wanted to thank you for encouraging me to learn regex. It has helped so much since I posted this. Thank you!

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