Font::TTF::Segarr(3pm)User Contributed Perl DocumentatioFont::TTF::Segarr(3pm)
NAME
Font::TTF::Segarr - Segmented array
DESCRIPTION
Holds data either directly or indirectly as a series of arrays. This
class looks after the set of arrays and masks the individual sub-
arrays, thus saving a class, we hope.
INSTANCE VARIABLES
All instance variables do not start with a space.
The segmented array is simply an array of segments
Each segment is a more complex affair:
START
In terms of the array, the address for the 0th element in this
segment.
LEN Number of elements in this segment
VAL The array which contains the elements
METHODS
Font::TTF::Segarr->new($size)
Creates a new segmented array with a given data size
$s->fastadd_segment($start, $is_sparse, @dat)
Creates a new segment and adds it to the array assuming no overlap
between the new segment and any others in the array. $is_sparse
indicates whether the passed in array contains "undef"s or not. If
false no checking is done (which is faster, but riskier). If equal to 2
then 0 is considered undef as well.
Returns the number of segments inserted.
$s->add_segment($start, $overwrite, @dat)
Creates a new segment and adds it to the array allowing for possible
overlaps between the new segment and the existing ones. In the case of
overlaps, elements from the new segment are deleted unless $overwrite
is set in which case the elements already there are over-written.
This method also checks the data coming in to see if it is sparse (i.e.
contains undef values). Gaps cause new segments to be created or not to
over-write existing values.
$s->tidy
Merges any immediately adjacent segments
$s->at($addr, [$len])
Looks up the data held at the given address by locating the appropriate
segment etc. If $len > 1 then returns an array of values, spaces being
filled with undef.
$s->remove($addr, [$len])
Removes the item or items from addr returning them as an array or the
first value in a scalar context. This is very like "at", including
padding with undef, but it deletes stuff as it goes.
$s->copy
Deep copies this array
$s->copy_seg($seg)
Creates a deep copy of a segment
BUGS
No known bugs.
AUTHOR
Martin Hosken <http://scripts.sil.org/FontUtils>.
LICENSING
Copyright (c) 1998-2016, SIL International (http://www.sil.org)
This module is released under the terms of the Artistic License 2.0.
For details, see the full text of the license in the file LICENSE.
perl v5.32.0 2020-12-27 Font::TTF::Segarr(3pm)
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