My reply at Re: How do I match lines of 40 characters long in a block of text? does what you want I think. Note that you don't really want to match 0 lines unless you want everything to match. Also, when you are constructing a regex, it is best to be able to state exactly what you want. I think you really want "1 to 4 lines each consisting of 0 to 40 characters followed by a newline." I've included the code from original reply below for your convenience.

/
(               # Assuming you want capture these lines.
  (?:           # Group each line.
     ^          # Beginning of the line.
     .{0,40}\n  # 0 to 40 characters followed by a newline. 
  ){1,4}        # 1 to 4 lines. (0 will permit an empty match.)
)               # Done capturing.
/mx;            # /m so that ^ anchor works, /x for comments.

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-sauoq
"My two cents aren't worth a dime.";

In reply to Re: How do I match lines of UP TO 40 chars BUT NO MORE in a block of text? by sauoq
in thread How do I match lines of UP TO 40 chars BUT NO MORE in a block of text? by kleinbiker7

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