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import r from '@foliojs-fork/restructure';
// horizontal header
export default new r.Struct({
version: r.int32,
ascent: r.int16, // Distance from baseline of highest ascender
descent: r.int16, // Distance from baseline of lowest descender
lineGap: r.int16, // Typographic line gap
advanceWidthMax: r.uint16, // Maximum advance width value in 'hmtx' table
minLeftSideBearing: r.int16, // Maximum advance width value in 'hmtx' table
minRightSideBearing: r.int16, // Minimum right sidebearing value
xMaxExtent: r.int16,
caretSlopeRise: r.int16, // Used to calculate the slope of the cursor (rise/run); 1 for vertical
caretSlopeRun: r.int16, // 0 for vertical
caretOffset: r.int16, // Set to 0 for non-slanted fonts
reserved: new r.Reserved(r.int16, 4),
metricDataFormat: r.int16, // 0 for current format
numberOfMetrics: r.uint16 // Number of advance widths in 'hmtx' table
});