As well as the 's' modifier which, as you correctly state, is needed for '.' to match a newline; you'll also need the 'm' modifier for '^' to match the start of each line in a multi-line string (which paragraph mode [-00] will give you). Without this modifier, '^' will match only once at the start of the string. ("perlre: Modifiers" and "perlre: Metacharacters" have details of both of those.)

The following two points are really more a comment on the way the OP posted the sample data than on your solution.

The start of the regex (/^TEXT ...) assumes TEXT starts at the beginning of a line. While I agree that is likely to be the case for the real data, the HTML source for the posted data suggests otherwise: 

<p>
...
<br />
...
<br />
 TEXT;
<br />
LAYER 133;

[download]

The two '\n's in the regex suffer from a similar problem. While it's likely that the real data has lines that are only separated by a single newline, the posted data has additional whitespace before and after various lines.

-- Ken

In reply to Re^2: how to write multi-line regex by kcott
in thread how to write multi-line regex by herman4016

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