| |
list of metamorphosis chains, each of which has its own fields:
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| | | | defaultFlags
| | |
chain's default subfeature flags (UInt32)
| | | | featureEntries
| | |
list of feature entries, each of which has fields:
|
| | | | type
| | |
| | | | setting
| | |
| | | | enable
| | |
| | | | disable
| | |
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| | | | subtables
| | |
list of metamorphosis subtables, each of which has fields:
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| | | | type
| | |
subtable type (0: rearrangement; 1: contextual substitution; 2: ligature;
4: non-contextual substitution; 5: insertion)
| | | | direction
| | |
processing direction ('LR' or 'RL')
| | | | orientation
| | |
applies to text in which orientation ('VH', 'V', or 'H')
| | | | subFeatureFlags
| | |
the subfeature flags controlling whether the table is used (UInt32)
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Further fields depend on the type of subtable:
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Rearrangement table:
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| | | | classes
| | |
array of lists of glyphs
| | | | states
| | |
array of arrays of hashes{'nextState', 'flags'}
|
Contextual substitution table:
|
| | | | classes
| | |
array of lists of glyphs
| | | | states
| | |
array of array of hashes{'nextState', 'flags', 'actions'}, where actions
is an array of two elements which are offsets to be added to [marked, current]
glyph to get index into mappings (or undef if no mapping to be applied)
| | | | mappings
| | |
list of glyph codes mapped to through the state table mappings
|
Ligature table:
Non-contextual substitution table:
Insertion table:
|
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METHODS
$t->read
Reads the table into memory
$t->out($fh)
Writes the table to a file either from memory or by copying
$t->print($fh)
Prints a human-readable representation of the table
BUGS
None known
AUTHOR
Jonathan Kew Jonathan_Kew@sil.org. See PDF::API2::TTF::Font for copyright and
licensing.
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