1Font::TTF::Segarr(3)  User Contributed Perl Documentation Font::TTF::Segarr(3)
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NAME

6       Font::TTF::Segarr - Segmented array
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DESCRIPTION

9       Holds data either directly or indirectly as a series of arrays. This
10       class looks after the set of arrays and masks the individual sub-
11       arrays, thus saving a class, we hope.
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INSTANCE VARIABLES

14       All instance variables do not start with a space.
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16       The segmented array is simply an array of segments
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18       Each segment is a more complex affair:
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20       START
21           In terms of the array, the address for the 0th element in this
22           segment.
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24       LEN Number of elements in this segment
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26       VAL The array which contains the elements
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METHODS

29   Font::TTF::Segarr->new($size)
30       Creates a new segmented array with a given data size
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32   $s->fastadd_segment($start, $is_sparse, @dat)
33       Creates a new segment and adds it to the array assuming no overlap
34       between the new segment and any others in the array. $is_sparse
35       indicates whether the passed in array contains "undef"s or not. If
36       false no checking is done (which is faster, but riskier). If equal to 2
37       then 0 is considered undef as well.
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39       Returns the number of segments inserted.
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41   $s->add_segment($start, $overwrite, @dat)
42       Creates a new segment and adds it to the array allowing for possible
43       overlaps between the new segment and the existing ones. In the case of
44       overlaps, elements from the new segment are deleted unless $overwrite
45       is set in which case the elements already there are over-written.
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47       This method also checks the data coming in to see if it is sparse (i.e.
48       contains undef values). Gaps cause new segments to be created or not to
49       over-write existing values.
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51   $s->tidy
52       Merges any immediately adjacent segments
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54   $s->at($addr, [$len])
55       Looks up the data held at the given address by locating the appropriate
56       segment etc. If $len > 1 then returns an array of values, spaces being
57       filled with undef.
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59   $s->remove($addr, [$len])
60       Removes the item or items from addr returning them as an array or the
61       first value in a scalar context. This is very like "at", including
62       padding with undef, but it deletes stuff as it goes.
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64   $s->copy
65       Deep copies this array
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67   $s->copy_seg($seg)
68       Creates a deep copy of a segment
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BUGS

71       No known bugs.
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AUTHOR

74       Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font for copyright
75       and licensing.
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79perl v5.10.1                      2008-06-11              Font::TTF::Segarr(3)
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