I'm still curious why he would want to match zero lines. I'd expect him to want to match at least one line.

And: as soon as you ask for at least one line, without an "^" anchor, your first line might contain more than 40 characters, only the regex it will only grab the last 40 ones of that line!

In short: it is definitely not a bad idea to add an anchor. 

  /^((?:.{0,40}\n){0,4})/;

[download]
or 
  /^((?:.{0,40}\n){1,4})/m;

[download]
The latter case can grab 1 to 4 whole lines anywhere in your text.

In reply to Re: Re: Re: How do I match lines of 40 characters long in a block of text? by bart
in thread How do I match lines of 40 characters long in a block of text? by kleinbiker7

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