purplebamboo / ttf.js

JavaScript font library for Node.js and browser.

ttf.js

A JavaScript TrueType font engine for modern browsers and Node.js.

Demo

ttf.js Demo - Glyph List

Development Status

work in progress...

Implementation status of TrueType Tables

sfnt header

sfnt version	Implemented
numTables	Implemented
searchRange	Implemented
entrySelector	Implemented
rangeShift	Implemented

Table Directory

Table Directory	Implemented

Required Tables

cmap	Part Implemented
glyf	Almost
head	Almost
hhea	-
hmtx	-
loca	Almost
maxp	Almost
name	-
post	-
OS/2	-

Optional Tables

cvt	-
EBDT	-
EBLC	-
EBSC	-
fpgm	-
gasp	-
hdmx	-
kern	-
LTSH	-
prep	-
PCLT	-
VDMX	-
vhea	-
vmtx	-

API

• ttf.cmap.getGlyphIndex(charactor)
  • Return glyph index array of the given charactor . The array's length equals to number of the font's cmap subtables.
  • The param charactor only accept a single charactor, if you use multiple charactors , only return the result of the first charactor.
  • This API is working in process , only support cmap format0 and part format4. You can try your font with this , if not support, contact me;

TrueType Specifications

• Microsoft Typography - Features of TrueType and OpenType (Microsoft)
• TrueType Reference Manual (Apple)