# Source code for fontTools.ttLib.tables.S__i_l_l

    from fontTools.misc import sstruct
    from fontTools.misc.fixedTools import floatToFixedToStr
    from fontTools.misc.textTools import safeEval
    from . import DefaultTable
    from . import grUtils
    import struct

    Sill_hdr = '''
        >
        version:    16.16F
    '''

    class table_S__i_l_l(DefaultTable.DefaultTable):

        def __init__(self, tag=None):
            DefaultTable.DefaultTable.__init__(self, tag)
            self.langs = {}

        def decompile(self, data, ttFont):
            (_, data) = sstruct.unpack2(Sill_hdr, data, self)
            self.version = float(floatToFixedToStr(self.version, precisionBits=16))
            numLangs, = struct.unpack('>H', data[:2])
            data = data[8:]
            maxsetting = 0
            langinfo = []
            for i in range(numLangs):
                (langcode, numsettings, offset) = struct.unpack(">4sHH",
                                                            data[i * 8:(i+1) * 8])
                offset = int(offset / 8) - (numLangs + 1)
                langcode = langcode.replace(b'\000', b'')
                langinfo.append((langcode.decode("utf-8"), numsettings, offset))
                maxsetting = max(maxsetting, offset + numsettings)
            data = data[numLangs * 8:]
            finfo = []
            for i in range(maxsetting):
                (fid, val, _) = struct.unpack(">LHH", data[i * 8:(i+1) * 8])
                finfo.append((fid, val))
            self.langs = {}
            for c, n, o in langinfo:
                self.langs[c] = []
                for i in range(o, o+n):
                    self.langs[c].append(finfo[i])

        def compile(self, ttFont):
            ldat = b""
            fdat = b""
            offset = len(self.langs)
            for c, inf in sorted(self.langs.items()):
                ldat += struct.pack(">4sHH", c.encode('utf8'), len(inf), 8 * offset + 20)
                for fid, val in inf:
                    fdat += struct.pack(">LHH", fid, val, 0)
                offset += len(inf)
            ldat += struct.pack(">LHH", 0x80808080, 0, 8 * offset + 20)
            return sstruct.pack(Sill_hdr, self) + grUtils.bininfo(len(self.langs)) + \
                    ldat + fdat

        def toXML(self, writer, ttFont):
            writer.simpletag('version', version=self.version)
            writer.newline()
            for c, inf in sorted(self.langs.items()):
                writer.begintag('lang', name=c)
                writer.newline()
                for fid, val in inf:
                    writer.simpletag('feature', fid=grUtils.num2tag(fid), val=val)
                    writer.newline()
                writer.endtag('lang')
                writer.newline()

        def fromXML(self, name, attrs, content, ttFont):
            if name == 'version':
                self.version = float(safeEval(attrs['version']))
            elif name == 'lang':
                c = attrs['name']
                self.langs[c] = []
                for element in content:
                    if not isinstance(element, tuple): continue
                    tag, a, subcontent = element
                    if tag == 'feature':
                        self.langs[c].append((grUtils.tag2num(a['fid']),
                                                int(safeEval(a['val']))))