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import r from '@foliojs-fork/restructure';
// font header
export default new r.Struct({
version: r.int32, // 0x00010000 (version 1.0)
revision: r.int32, // set by font manufacturer
checkSumAdjustment: r.uint32,
magicNumber: r.uint32, // set to 0x5F0F3CF5
flags: r.uint16,
unitsPerEm: r.uint16, // range from 64 to 16384
created: new r.Array(r.int32, 2),
modified: new r.Array(r.int32, 2),
xMin: r.int16, // for all glyph bounding boxes
yMin: r.int16, // for all glyph bounding boxes
xMax: r.int16, // for all glyph bounding boxes
yMax: r.int16, // for all glyph bounding boxes
macStyle: new r.Bitfield(r.uint16, [
'bold', 'italic', 'underline', 'outline',
'shadow', 'condensed', 'extended'
]),
lowestRecPPEM: r.uint16, // smallest readable size in pixels
fontDirectionHint: r.int16,
indexToLocFormat: r.int16, // 0 for short offsets, 1 for long
glyphDataFormat: r.int16 // 0 for current format
});