// The `post` table stores additional PostScript information, such as glyph names.
// https://www.microsoft.com/typography/OTSPEC/post.htm

import parse from '../parse';

// Parse the PostScript `post` table
function parsePostTable(data, start) {
    const post = {};
    const p = new parse.Parser(data, start);
    post.version = p.parseVersion();
    post.italicAngle = p.parseFixed();
    post.underlinePosition = p.parseShort();
    post.underlineThickness = p.parseShort();
    post.isFixedPitch = p.parseULong();
    post.minMemType42 = p.parseULong();
    post.maxMemType42 = p.parseULong();
    post.minMemType1 = p.parseULong();
    post.maxMemType1 = p.parseULong();
    post.names = [];
    switch (post.version) {
        case 1:
            break;
        case 2:
            post.numberOfGlyphs = p.parseUShort();
            post.glyphNameIndex = new Array(post.numberOfGlyphs);
            for (let i = 0; i < post.numberOfGlyphs; i++) {
                post.glyphNameIndex[i] = p.parseUShort();
            }
            break;
        case 2.5:
            post.numberOfGlyphs = p.parseUShort();
            post.offset = new Array(post.numberOfGlyphs);
            for (let i = 0; i < post.numberOfGlyphs; i++) {
                post.offset[i] = p.parseChar();
            }
            break;
    }
    return post;
}

export default { parse: parsePostTable };