The code I use to slice the mail body to fixed length chunks that are forwarded to my GSM phone as SMS messages. Of course, the mail gets filtered first...
$max_len = 140;

use POSIX;

@chunks = unpack("A$max_len" x (ceil(length($message)/$max_len)), $mes
+sage);

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In reply to Slice a string into equal-length chunks by gordan

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