latex.go

//go:build !latex
// +build !latex

package canvas

import (
	"bytes"
	"fmt"
	"math"
	"strconv"
	"strings"

	"github.com/go-fonts/latin-modern/lmmath"
	"github.com/go-fonts/latin-modern/lmmono10italic"
	"github.com/go-fonts/latin-modern/lmmono10regular"
	"github.com/go-fonts/latin-modern/lmmono12regular"
	"github.com/go-fonts/latin-modern/lmmono8regular"
	"github.com/go-fonts/latin-modern/lmmono9regular"
	"github.com/go-fonts/latin-modern/lmmonocaps10regular"
	"github.com/go-fonts/latin-modern/lmmonoslant10regular"
	"github.com/go-fonts/latin-modern/lmroman10bold"
	"github.com/go-fonts/latin-modern/lmroman10bolditalic"
	"github.com/go-fonts/latin-modern/lmroman10italic"
	"github.com/go-fonts/latin-modern/lmroman10regular"
	"github.com/go-fonts/latin-modern/lmroman12bold"
	"github.com/go-fonts/latin-modern/lmroman12italic"
	"github.com/go-fonts/latin-modern/lmroman12regular"
	"github.com/go-fonts/latin-modern/lmroman17regular"
	"github.com/go-fonts/latin-modern/lmroman5bold"
	"github.com/go-fonts/latin-modern/lmroman5regular"
	"github.com/go-fonts/latin-modern/lmroman6bold"
	"github.com/go-fonts/latin-modern/lmroman6regular"
	"github.com/go-fonts/latin-modern/lmroman7bold"
	"github.com/go-fonts/latin-modern/lmroman7italic"
	"github.com/go-fonts/latin-modern/lmroman7regular"
	"github.com/go-fonts/latin-modern/lmroman8bold"
	"github.com/go-fonts/latin-modern/lmroman8italic"
	"github.com/go-fonts/latin-modern/lmroman8regular"
	"github.com/go-fonts/latin-modern/lmroman9bold"
	"github.com/go-fonts/latin-modern/lmroman9italic"
	"github.com/go-fonts/latin-modern/lmroman9regular"
	"github.com/go-fonts/latin-modern/lmromancaps10regular"
	"github.com/go-fonts/latin-modern/lmromandunh10regular"
	"github.com/go-fonts/latin-modern/lmromanslant10bold"
	"github.com/go-fonts/latin-modern/lmromanslant10regular"
	"github.com/go-fonts/latin-modern/lmromanslant12regular"
	"github.com/go-fonts/latin-modern/lmromanslant17regular"
	"github.com/go-fonts/latin-modern/lmromanslant8regular"
	"github.com/go-fonts/latin-modern/lmromanslant9regular"
	"github.com/go-fonts/latin-modern/lmromanunsl10regular"
	"github.com/go-fonts/latin-modern/lmsans10bold"
	"github.com/go-fonts/latin-modern/lmsans10oblique"
	"github.com/go-fonts/latin-modern/lmsans10regular"
	"github.com/go-fonts/latin-modern/lmsans12oblique"
	"github.com/go-fonts/latin-modern/lmsans12regular"
	"github.com/go-fonts/latin-modern/lmsans17oblique"
	"github.com/go-fonts/latin-modern/lmsans17regular"
	"github.com/go-fonts/latin-modern/lmsans8oblique"
	"github.com/go-fonts/latin-modern/lmsans8regular"
	"github.com/go-fonts/latin-modern/lmsans9oblique"
	"github.com/go-fonts/latin-modern/lmsans9regular"
	"github.com/go-fonts/latin-modern/lmsansdemicond10regular"
	"github.com/go-fonts/latin-modern/lmsansquot8oblique"
	"github.com/go-fonts/latin-modern/lmsansquot8regular"
	canvasFont "github.com/tdewolff/font"
	"star-tex.org/x/tex"
)

var preamble = `\nopagenumbers

\def\frac#1#2{{{#1}\over{#2}}}
`

// ParseLaTeX parse a LaTeX formula (that what is between $...$) and returns a path.
func ParseLaTeX(formula string) (*Path, error) {
	r := strings.NewReader(fmt.Sprintf(`%s $%s$`, preamble, formula))
	w := &bytes.Buffer{}
	stdout := &bytes.Buffer{}
	engine := tex.NewEngine(stdout, bytes.NewReader([]byte{}))
	if err := engine.Process(w, r); err != nil {
		fmt.Println(stdout.String())
		return nil, err
	}

	p, err := DVI2Path(w.Bytes(), newFonts())
	if err != nil {
		fmt.Println(stdout.String())
		return nil, err
	}
	return p, nil
}

type dviFonts struct {
	font map[string]*dviFont
}

type dviFont struct {
	sfnt   *canvasFont.SFNT
	cmap   map[uint32]rune
	size   float64
	italic bool
}

func newFonts() *dviFonts {
	return &dviFonts{
		font: map[string]*dviFont{},
	}
}

func (fs *dviFonts) Get(name string, scale float64) DVIFont {
	i := 0
	for i < len(name) && 'a' <= name[i] && name[i] <= 'z' {
		i++
	}
	fontname := name[:i]
	fontsize := 10.0
	if ifontsize, err := strconv.Atoi(name[i:]); err == nil {
		fontsize = float64(ifontsize)
	}

	cmap := cmapCMR
	f, ok := fs.font[name]
	if !ok {
		var fontSizes map[float64][]byte
		switch fontname {
		case "cmb", "cmbx":
			fontSizes = map[float64][]byte{
				12.0: lmroman12bold.TTF,
				10.0: lmroman10bold.TTF,
				9.0:  lmroman9bold.TTF,
				8.0:  lmroman8bold.TTF,
				7.0:  lmroman7bold.TTF,
				6.0:  lmroman6bold.TTF,
				5.0:  lmroman5bold.TTF,
			}
		case "cmbsy":
			cmap = cmapCMSY
			fontSizes = map[float64][]byte{
				fontsize: lmmath.TTF,
			}
		case "cmbxsl":
			fontSizes = map[float64][]byte{
				fontsize: lmromanslant10bold.TTF,
			}
		case "cmbxti":
			fontSizes = map[float64][]byte{
				10.0: lmroman10bolditalic.TTF,
			}
		case "cmcsc":
			cmap = cmapCMTT
			fontSizes = map[float64][]byte{
				10.0: lmromancaps10regular.TTF,
			}
		case "cmdunh":
			fontSizes = map[float64][]byte{
				10.0: lmromandunh10regular.TTF,
			}
		case "cmex":
			cmap = cmapCMEX
			fontSizes = map[float64][]byte{
				fontsize: lmmath.TTF,
			}
		case "cmitt":
			cmap = cmapCMTT
			fontSizes = map[float64][]byte{
				10.0: lmmono10italic.TTF,
			}
		case "cmmi":
			cmap = cmapCMMI
			fontSizes = map[float64][]byte{
				12.0: lmroman12italic.TTF,
				10.0: lmroman10italic.TTF,
				9.0:  lmroman9italic.TTF,
				8.0:  lmroman8italic.TTF,
				7.0:  lmroman7italic.TTF,
			}
		case "cmmib":
			cmap = cmapCMMI
			fontSizes = map[float64][]byte{
				10.0: lmroman10bolditalic.TTF,
			}
		case "cmr":
			fontSizes = map[float64][]byte{
				17.0: lmroman17regular.TTF,
				12.0: lmroman12regular.TTF,
				10.0: lmroman10regular.TTF,
				9.0:  lmroman9regular.TTF,
				8.0:  lmroman8regular.TTF,
				7.0:  lmroman7regular.TTF,
				6.0:  lmroman6regular.TTF,
				5.0:  lmroman5regular.TTF,
			}
		case "cmsl":
			fontSizes = map[float64][]byte{
				17.0: lmromanslant17regular.TTF,
				12.0: lmromanslant12regular.TTF,
				10.0: lmromanslant10regular.TTF,
				9.0:  lmromanslant9regular.TTF,
				8.0:  lmromanslant8regular.TTF,
			}
		case "cmsltt":
			fontSizes = map[float64][]byte{
				10.0: lmmonoslant10regular.TTF,
			}
		case "cmss":
			fontSizes = map[float64][]byte{
				17.0: lmsans17regular.TTF,
				12.0: lmsans12regular.TTF,
				10.0: lmsans10regular.TTF,
				9.0:  lmsans9regular.TTF,
				8.0:  lmsans8regular.TTF,
			}
		case "cmssb", "cmssbx":
			fontSizes = map[float64][]byte{
				10.0: lmsans10bold.TTF,
			}
		case "cmssdc":
			fontSizes = map[float64][]byte{
				10.0: lmsansdemicond10regular.TTF,
			}
		case "cmssi":
			fontSizes = map[float64][]byte{
				17.0: lmsans17oblique.TTF,
				12.0: lmsans12oblique.TTF,
				10.0: lmsans10oblique.TTF,
				9.0:  lmsans9oblique.TTF,
				8.0:  lmsans8oblique.TTF,
			}
		case "cmssq":
			fontSizes = map[float64][]byte{
				8.0: lmsansquot8regular.TTF,
			}
		case "cmssqi":
			fontSizes = map[float64][]byte{
				8.0: lmsansquot8oblique.TTF,
			}
		case "cmsy":
			cmap = cmapCMSY
			fontSizes = map[float64][]byte{
				fontsize: lmmath.TTF,
			}
		case "cmtcsc":
			cmap = cmapCMTT
			fontSizes = map[float64][]byte{
				10.0: lmmonocaps10regular.TTF,
			}
		//case "cmtex":
		//cmap = nil
		case "cmti":
			fontSizes = map[float64][]byte{
				12.0: lmroman12italic.TTF,
				10.0: lmroman10italic.TTF,
				9.0:  lmroman9italic.TTF,
				8.0:  lmroman8italic.TTF,
				7.0:  lmroman7italic.TTF,
			}
		case "cmtt":
			cmap = cmapCMTT
			fontSizes = map[float64][]byte{
				12.0: lmmono12regular.TTF,
				10.0: lmmono10regular.TTF,
				9.0:  lmmono9regular.TTF,
				8.0:  lmmono8regular.TTF,
			}
		case "cmu":
			fontSizes = map[float64][]byte{
				10.0: lmromanunsl10regular.TTF,
			}
		//case "cmvtt":
		//cmap = cmapCTT
		default:
			fmt.Println("WARNING: unknown font", fontname)
		}

		// select closest matching font size
		var data []byte
		var size float64
		for isize, idata := range fontSizes {
			if data == nil || math.Abs(isize-fontsize) < math.Abs(size-fontsize) {
				data = idata
				size = isize
			}
		}

		// load font
		sfnt, err := canvasFont.ParseSFNT(data, 0)
		if err != nil {
			fmt.Println("ERROR: %w", err)
		}

		// calculate size correction if the found font has a different font size than requested
		fsize := scale * fontsize * mmPerPt / float64(sfnt.Head.UnitsPerEm)
		//fsizeCorr := fontsize / size
		isItalic := 0 < len(fontname) && fontname[len(fontname)-1] == 'i'
		fsizeCorr := 1.0

		f = &dviFont{sfnt, cmap, fsizeCorr * fsize, isItalic}
		fs.font[name] = f
	}
	return f
}

func (f *dviFont) Draw(p canvasFont.Pather, x, y float64, cid uint32) float64 {
	r := f.cmap[cid]
	gid := f.sfnt.GlyphIndex(r)
	if f.italic {
		x -= f.size * float64(f.sfnt.OS2.SxHeight) / 2.0 * math.Tan(-f.sfnt.Post.ItalicAngle*math.Pi/180.0)
	}
	_ = f.sfnt.GlyphPath(p, gid, 0, x, y, f.size, canvasFont.NoHinting)
	return f.size * float64(f.sfnt.GlyphAdvance(gid)) // in mm
}

var cmapCMR = map[uint32]rune{
	0x00: '\u0393',
	0x01: '\u0394',
	0x02: '\u0398',
	0x03: '\u039B',
	0x04: '\u039E',
	0x05: '\u03A0',
	0x06: '\u03A3',
	0x07: '\u03A5',
	0x08: '\u03A6',
	0x09: '\u03A8',
	0x0A: '\u03A9',
	0x0B: '\uFB00',
	0x0C: '\uFB01',
	0x0D: '\uFB02',
	0x0E: '\uFB03',
	0x0F: '\uFB04',
	0x10: '\u0131',
	0x11: '\u0237',
	0x12: '\u0300',
	0x13: '\u0301',
	0x14: '\u030C',
	0x15: '\u0306',
	0x16: '\u0305',
	0x17: '\u030A',
	0x18: '\u0327',
	0x19: '\u00DF',
	0x1A: '\u00E6',
	0x1B: '\u0153',
	0x1C: '\u00F8',
	0x1D: '\u00C6',
	0x1E: '\u0152',
	0x1F: '\u00D8',
	0x20: '\u0337',
	0x21: '\u0021',
	0x22: '\u201D',
	0x23: '\u0023',
	0x24: '\u0024',
	0x25: '\u0025',
	0x26: '\u0026',
	0x27: '\u0027',
	0x28: '\u0028',
	0x29: '\u0029',
	0x2A: '\u002A',
	0x2B: '\u002B',
	0x2C: '\u002C',
	0x2D: '\u002D',
	0x2E: '\u002E',
	0x2F: '\u002F',
	0x30: '\u0030',
	0x31: '\u0031',
	0x32: '\u0032',
	0x33: '\u0033',
	0x34: '\u0034',
	0x35: '\u0035',
	0x36: '\u0036',
	0x37: '\u0037',
	0x38: '\u0038',
	0x39: '\u0039',
	0x3A: '\u003A',
	0x3B: '\u003B',
	0x3C: '\u00A1',
	0x3D: '\u003D',
	0x3E: '\u00BF',
	0x3F: '\u003F',
	0x40: '\u0040',
	0x41: '\u0041',
	0x42: '\u0042',
	0x43: '\u0043',
	0x44: '\u0044',
	0x45: '\u0045',
	0x46: '\u0046',
	0x47: '\u0047',
	0x48: '\u0048',
	0x49: '\u0049',
	0x4A: '\u004A',
	0x4B: '\u004B',
	0x4C: '\u004C',
	0x4D: '\u004D',
	0x4E: '\u004E',
	0x4F: '\u004F',
	0x50: '\u0050',
	0x51: '\u0051',
	0x52: '\u0052',
	0x53: '\u0053',
	0x54: '\u0054',
	0x55: '\u0055',
	0x56: '\u0056',
	0x57: '\u0057',
	0x58: '\u0058',
	0x59: '\u0059',
	0x5A: '\u005A',
	0x5B: '\u005B',
	0x5C: '\u201C',
	0x5D: '\u005D',
	0x5E: '\u0302',
	0x5F: '\u0307',
	0x60: '\u2018',
	0x61: '\u0061',
	0x62: '\u0062',
	0x63: '\u0063',
	0x64: '\u0064',
	0x65: '\u0065',
	0x66: '\u0066',
	0x67: '\u0067',
	0x68: '\u0068',
	0x69: '\u0069',
	0x6A: '\u006A',
	0x6B: '\u006B',
	0x6C: '\u006C',
	0x6D: '\u006D',
	0x6E: '\u006E',
	0x6F: '\u006F',
	0x70: '\u0070',
	0x71: '\u0071',
	0x72: '\u0072',
	0x73: '\u0073',
	0x74: '\u0074',
	0x75: '\u0075',
	0x76: '\u0076',
	0x77: '\u0077',
	0x78: '\u0078',
	0x79: '\u0079',
	0x7A: '\u007A',
	0x7B: '\u2013',
	0x7C: '\u2014',
	0x7D: '\u030B',
	0x7E: '\u0303',
	0x7F: '\u0308',
}

var cmapCMMI = map[uint32]rune{
	0x00: '\u0393',
	0x01: '\u0394',
	0x02: '\u0398',
	0x03: '\u039B',
	0x04: '\u039E',
	0x05: '\u03A0',
	0x06: '\u03A3',
	0x07: '\u03A5',
	0x08: '\u03A6',
	0x09: '\u03A8',
	0x0A: '\u03A9',
	0x0B: '\u03B1',
	0x0C: '\u03B2',
	0x0D: '\u03B3',
	0x0E: '\u03B4',
	0x0F: '\u03B5',
	0x10: '\u03B6',
	0x11: '\u03B7',
	0x12: '\u03B8',
	0x13: '\u03B9',
	0x14: '\u03BA',
	0x15: '\u03BB',
	0x16: '\u03BC',
	0x17: '\u03BD',
	0x18: '\u03BE',
	0x19: '\u03C0',
	0x1A: '\u03C1',
	0x1B: '\u03C3',
	0x1C: '\u03C4',
	0x1D: '\u03C5',
	0x1E: '\u03C6',
	0x1F: '\u03C7',
	0x20: '\u03C8',
	0x21: '\u03C9',
	0x22: '\u025B',
	0x23: '\u03D1',
	0x24: '\u03D6',
	0x25: '\u03F1',
	0x26: '\u03C2',
	0x27: '\u03D5',
	0x28: '\u21BC',
	0x29: '\u21BD',
	0x2A: '\u21C0',
	0x2B: '\u21C1',
	0x2C: '\u21AA',
	0x2D: '\u21A9',
	0x2E: '\u25B9',
	0x2F: '\u25C3',
	0x30: '\u0030',
	0x31: '\u0031',
	0x32: '\u0032',
	0x33: '\u0033',
	0x34: '\u0034',
	0x35: '\u0035',
	0x36: '\u0036',
	0x37: '\u0037',
	0x38: '\u0038',
	0x39: '\u0039',
	0x3A: '\u002E',
	0x3B: '\u002C',
	0x3C: '\u003C',
	0x3D: '\u002F',
	0x3E: '\u003E',
	0x3F: '\u22C6',
	0x40: '\u2202',
	0x41: '\u0041',
	0x42: '\u0042',
	0x43: '\u0043',
	0x44: '\u0044',
	0x45: '\u0045',
	0x46: '\u0046',
	0x47: '\u0047',
	0x48: '\u0048',
	0x49: '\u0049',
	0x4A: '\u004A',
	0x4B: '\u004B',
	0x4C: '\u004C',
	0x4D: '\u004D',
	0x4E: '\u004E',
	0x4F: '\u004F',
	0x50: '\u0050',
	0x51: '\u0051',
	0x52: '\u0052',
	0x53: '\u0053',
	0x54: '\u0054',
	0x55: '\u0055',
	0x56: '\u0056',
	0x57: '\u0057',
	0x58: '\u0058',
	0x59: '\u0059',
	0x5A: '\u005A',
	0x5B: '\u266D',
	0x5C: '\u266E',
	0x5D: '\u266F',
	0x5E: '\u2323',
	0x5F: '\u2322',
	0x60: '\u2113',
	0x61: '\u0061',
	0x62: '\u0062',
	0x63: '\u0063',
	0x64: '\u0064',
	0x65: '\u0065',
	0x66: '\u0066',
	0x67: '\u0067',
	0x68: '\u0068',
	0x69: '\u0069',
	0x6A: '\u006A',
	0x6B: '\u006B',
	0x6C: '\u006C',
	0x6D: '\u006D',
	0x6E: '\u006E',
	0x6F: '\u006F',
	0x70: '\u0070',
	0x71: '\u0071',
	0x72: '\u0072',
	0x73: '\u0073',
	0x74: '\u0074',
	0x75: '\u0075',
	0x76: '\u0076',
	0x77: '\u0077',
	0x78: '\u0078',
	0x79: '\u0079',
	0x7A: '\u007A',
	0x7B: '\u0131',
	0x7C: '\u0237',
	0x7D: '\u2118',
	0x7E: '\u20D7',
	0x7F: '\u0311',
}

var cmapCMSY = map[uint32]rune{
	0x00: '\u2212',
	0x01: '\u00B7',
	0x02: '\u00D7',
	0x03: '\u22C6',
	0x04: '\u00F7',
	0x05: '\u22C4',
	0x06: '\u00B1',
	0x07: '\u2213',
	0x08: '\u2295',
	0x09: '\u2296',
	0x0A: '\u2297',
	0x0B: '\u2298',
	0x0C: '\u2299',
	0x0D: '\u25CB',
	0x0E: '\u2218',
	0x0F: '\u2219',
	0x10: '\u2243',
	0x11: '\u224D',
	0x12: '\u2286',
	0x13: '\u2287',
	0x14: '\u2264',
	0x15: '\u2265',
	0x16: '\u227C',
	0x17: '\u227D',
	0x18: '\u223C',
	0x19: '\u2245',
	0x1A: '\u2282',
	0x1B: '\u2283',
	0x1C: '\u226A',
	0x1D: '\u226B',
	0x1E: '\u227A',
	0x1F: '\u227B',
	0x20: '\u2190',
	0x21: '\u2192',
	0x22: '\u2191',
	0x23: '\u2193',
	0x24: '\u2194',
	0x25: '\u2197',
	0x26: '\u2198',
	0x27: '\u2242',
	0x28: '\u21D0',
	0x29: '\u21D2',
	0x2A: '\u21D1',
	0x2B: '\u21D3',
	0x2C: '\u21D4',
	0x2D: '\u2196',
	0x2E: '\u2199',
	0x2F: '\u221D',
	0x30: '\u2032',
	0x31: '\u221E',
	0x32: '\u2208',
	0x33: '\u220B',
	0x34: '\u25B3',
	0x35: '\u25BD',
	0x36: '\u0338',
	0x37: '\u21A6',
	0x38: '\u2200',
	0x39: '\u2203',
	0x3A: '\u00AC',
	0x3B: '\u2205',
	0x3C: '\u211C',
	0x3D: '\u2111',
	0x3E: '\u22A4',
	0x3F: '\u22A5',
	0x40: '\u2135',
	0x41: '\U0001D49C',
	0x42: '\u212C',
	0x43: '\U0001D49E',
	0x44: '\U0001D49F',
	0x45: '\u2130',
	0x46: '\u2131',
	0x47: '\U0001D4A2',
	0x48: '\u210B',
	0x49: '\u2110',
	0x4A: '\U0001D4A5',
	0x4B: '\U0001D4A6',
	0x4C: '\u2112',
	0x4D: '\u2133',
	0x4E: '\U0001D4A9',
	0x4F: '\U0001D4AA',
	0x50: '\U0001D4AB',
	0x51: '\U0001D4AC',
	0x52: '\u211B',
	0x53: '\U0001D4AE',
	0x54: '\U0001D4AF',
	0x55: '\U0001D4B0',
	0x56: '\U0001D4B1',
	0x57: '\U0001D4B2',
	0x58: '\U0001D4B3',
	0x59: '\U0001D4B4',
	0x5A: '\U0001D4B5',
	0x5B: '\u222A',
	0x5C: '\u2229',
	0x5D: '\u228E',
	0x5E: '\u2227',
	0x5F: '\u2228',
	0x60: '\u22A2',
	0x61: '\u22A3',
	0x62: '\u230A',
	0x63: '\u230B',
	0x64: '\u2308',
	0x65: '\u2309',
	0x66: '\u007B',
	0x67: '\u007D',
	0x68: '\u2329',
	0x69: '\u232A',
	0x6A: '\u2223',
	0x6B: '\u2225',
	0x6C: '\u2195',
	0x6D: '\u21D5',
	0x6E: '\u2216',
	0x6F: '\u2240',
	0x70: '\u221A',
	0x71: '\u2210',
	0x72: '\u2207',
	0x73: '\u222B',
	0x74: '\u2294',
	0x75: '\u2293',
	0x76: '\u2291',
	0x77: '\u2292',
	0x78: '\u00A7',
	0x79: '\u2020',
	0x7A: '\u2021',
	0x7B: '\u00B6',
	0x7C: '\u2663',
	0x7D: '\u2662',
	0x7E: '\u2661',
	0x7F: '\u2660',
}

var cmapCMEX = map[uint32]rune{
	0x00: '\u0028',
	0x01: '\u0029',
	0x02: '\u005B',
	0x03: '\u005D',
	0x04: '\u230A',
	0x05: '\u230B',
	0x06: '\u2308',
	0x07: '\u2309',
	0x08: '\u007B',
	0x09: '\u007D',
	0x0A: '\u2329',
	0x0B: '\u232A',
	0x0C: '\u2223',
	0x0D: '\u2225',
	0x0E: '\u002F',
	0x0F: '\u2216',
	0x10: '\u0028',
	0x11: '\u0029',
	0x12: '\u0028',
	0x13: '\u0029',
	0x14: '\u005B',
	0x15: '\u005D',
	0x16: '\u230A',
	0x17: '\u230B',
	0x18: '\u2308',
	0x19: '\u2309',
	0x1A: '\u007B',
	0x1B: '\u007D',
	0x1C: '\u2329',
	0x1D: '\u232A',
	0x1E: '\u002F',
	0x1F: '\u2216',
	0x20: '\u0028',
	0x21: '\u0029',
	0x22: '\u005B',
	0x23: '\u005D',
	0x24: '\u230A',
	0x25: '\u230B',
	0x26: '\u2308',
	0x27: '\u2309',
	0x28: '\u007B',
	0x29: '\u007D',
	0x2A: '\u2329',
	0x2B: '\u232A',
	0x2C: '\u002F',
	0x2D: '\u2216',
	0x2E: '\u002F',
	0x2F: '\u2216',
	0x30: '\u0028',
	0x31: '\u0029',
	0x32: '\u005B',
	0x33: '\u005D',
	0x34: '\u005B',
	0x35: '\u005D',
	0x36: '\u005B',
	0x37: '\u005D',
	0x38: '\u007B',
	0x39: '\u007D',
	0x3A: '\u007B',
	0x3B: '\u007D',
	0x3C: '\u007B',
	0x3D: '\u007D',
	0x3E: '\u007B',
	0x3F: '\u2191',
	0x40: '\u0028',
	0x41: '\u0029',
	0x42: '\u0028',
	0x43: '\u0029',
	0x44: '\u2329',
	0x45: '\u232A',
	0x46: '\u2294',
	0x47: '\u2294',
	0x48: '\u222E',
	0x49: '\u222E',
	0x4A: '\u2299',
	0x4B: '\u2299',
	0x4C: '\u2295',
	0x4D: '\u2295',
	0x4E: '\u2297',
	0x4F: '\u2297',
	0x50: '\u2211',
	0x51: '\u220F',
	0x52: '\u222B',
	0x53: '\u22C3',
	0x54: '\u22C2',
	0x55: '\u228E',
	0x56: '\u2227',
	0x57: '\u2228',
	0x58: '\u2211',
	0x59: '\u220F',
	0x5A: '\u222B',
	0x5B: '\u22C3',
	0x5C: '\u22C2',
	0x5D: '\u228E',
	0x5E: '\u2227',
	0x5F: '\u2228',
	0x60: '\u2210',
	0x61: '\u2210',
	0x62: '\u0302',
	0x63: '\u0302',
	0x64: '\u0302',
	0x65: '\u02DC',
	0x66: '\u02DC',
	0x67: '\u02DC',
	0x68: '\u005B',
	0x69: '\u005D',
	0x6A: '\u230A',
	0x6B: '\u230B',
	0x6C: '\u2308',
	0x6D: '\u2309',
	0x6E: '\u007B',
	0x6F: '\u007D',
	0x70: '\u221A',
	0x71: '\u221A',
	0x72: '\u221A',
	0x73: '\u221A',
	0x74: '\u221A',
	0x75: '\u221A',
	0x76: '\u221A',
	0x77: '\u21D1',
	0x78: '\u2191',
	0x79: '\u2193',
	0x7A: '\uFE37',
	0x7B: '\uFE37',
	0x7C: '\uFE38',
	0x7D: '\uFE38',
	0x7E: '\u21D1',
	0x7F: '\u21D3',
}

var cmapCMTT = map[uint32]rune{
	0x00: '\u0393',
	0x01: '\u0394',
	0x02: '\u0398',
	0x03: '\u039B',
	0x04: '\u039E',
	0x05: '\u03A0',
	0x06: '\u03A3',
	0x07: '\u03A5',
	0x08: '\u03A6',
	0x09: '\u03A8',
	0x0A: '\u03A9',
	0x0B: '\u2191',
	0x0C: '\u2193',
	0x0D: '\u0027',
	0x0E: '\u00A1',
	0x0F: '\u00BF',
	0x10: '\u0131',
	0x11: '\u0237',
	0x12: '\u0300',
	0x13: '\u0301',
	0x14: '\u030C',
	0x15: '\u0306',
	0x16: '\u0305',
	0x17: '\u030A',
	0x18: '\u0327',
	0x19: '\u00DF',
	0x1A: '\u00E6',
	0x1B: '\u0153',
	0x1C: '\u00F8',
	0x1D: '\u00C6',
	0x1E: '\u0152',
	0x1F: '\u00D8',
	0x20: '\u0337',
	0x21: '\u0021',
	0x22: '\u201D',
	0x23: '\u0023',
	0x24: '\u0024',
	0x25: '\u0025',
	0x26: '\u0026',
	0x27: '\u0027',
	0x28: '\u0028',
	0x29: '\u0029',
	0x2A: '\u002A',
	0x2B: '\u002B',
	0x2C: '\u002C',
	0x2D: '\u002D',
	0x2E: '\u002E',
	0x2F: '\u002F',
	0x30: '\u0030',
	0x31: '\u0031',
	0x32: '\u0032',
	0x33: '\u0033',
	0x34: '\u0034',
	0x35: '\u0035',
	0x36: '\u0036',
	0x37: '\u0037',
	0x38: '\u0038',
	0x39: '\u0039',
	0x3A: '\u003A',
	0x3B: '\u003B',
	0x3C: '\u003C',
	0x3D: '\u003D',
	0x3E: '\u003E',
	0x3F: '\u003F',
	0x40: '\u0040',
	0x41: '\u0041',
	0x42: '\u0042',
	0x43: '\u0043',
	0x44: '\u0044',
	0x45: '\u0045',
	0x46: '\u0046',
	0x47: '\u0047',
	0x48: '\u0048',
	0x49: '\u0049',
	0x4A: '\u004A',
	0x4B: '\u004B',
	0x4C: '\u004C',
	0x4D: '\u004D',
	0x4E: '\u004E',
	0x4F: '\u004F',
	0x50: '\u0050',
	0x51: '\u0051',
	0x52: '\u0052',
	0x53: '\u0053',
	0x54: '\u0054',
	0x55: '\u0055',
	0x56: '\u0056',
	0x57: '\u0057',
	0x58: '\u0058',
	0x59: '\u0059',
	0x5A: '\u005A',
	0x5B: '\u005B',
	0x5C: '\u005C',
	0x5D: '\u005D',
	0x5E: '\u0302',
	0x5F: '\u005F',
	0x60: '\u2018',
	0x61: '\u0061',
	0x62: '\u0062',
	0x63: '\u0063',
	0x64: '\u0064',
	0x65: '\u0065',
	0x66: '\u0066',
	0x67: '\u0067',
	0x68: '\u0068',
	0x69: '\u0069',
	0x6A: '\u006A',
	0x6B: '\u006B',
	0x6C: '\u006C',
	0x6D: '\u006D',
	0x6E: '\u006E',
	0x6F: '\u006F',
	0x70: '\u0070',
	0x71: '\u0071',
	0x72: '\u0072',
	0x73: '\u0073',
	0x74: '\u0074',
	0x75: '\u0075',
	0x76: '\u0076',
	0x77: '\u0077',
	0x78: '\u0078',
	0x79: '\u0079',
	0x7A: '\u007A',
	0x7B: '\u007B',
	0x7C: '\u007C',
	0x7D: '\u007D',
	0x7E: '\u0303',
	0x7F: '\u0308',
}