This is an internal function used by
formats, though you may call it, too. It formats (see perlform) a list of values according to the contents of PICTURE, placing the output into the format output accumulator,
$ACCUMULATOR in English). Eventually, when a
write is done, the contents of
$^A are written to some filehandle. You could also read
$^A and then set
$^A back to
"" . Note that a format typically does one
formline per line of form, but the
formline function itself doesn't care how many newlines are embedded in the PICTURE. This means that the
~~ tokens treat the entire PICTURE as a single line. You may therefore need to use multiple formlines to implement a single record format, just like the
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