extending_racket.mdwn

   1 *   Racket [FFI](http://docs.racket-lang.org/foreign/index.html) |
   2 [C API](http://docs.racket-lang.org/inside/index.html)
   3 *   [Unsafe operations](http://docs.racket-lang.org/reference/unsafe.html)
   4 *   [Initialization etc](http://docs.racket-lang.org/reference/running-sa.html)
   5
   6 ## Teaching Languages ##
   7
   8 *   [DrRacket/How to Design Programs Teaching Languages](http://docs.racket-lang.org/drracket/htdp-langs.html)
   9 *   [HtDP Languages](http://docs.racket-lang.org/htdp-langs/index.html)
  10 *   [HtDP Teachpacks](http://docs.racket-lang.org/teachpack/index.html)
  11 *   [Implementing HtDP & other customized teaching languages](http://docs.racket-lang.org/htdp/index.html)
  12
  13 ## Custom Languages ##
  14
  15 Racket users can define their own languages, as discussed in [Creating Languages](http://docs.racket-lang.org/guide/languages.html). Typically, a language name maps to its implementation through a module path by adding `/lang/reader`; for example, the language name `scribble/base` is expanded to `scribble/base/lang/reader`, which is the module that implements the surface-syntax parser.
  16
  17 *   [Syntax: Meta-Programming Helpers](http://docs.racket-lang.org/syntax/index.html)
  18 *   [(require syntax/module-reader)](http://docs.racket-lang.org/syntax/reader-helpers.html#%28mod-path._syntax%2Fmodule-reader%29)
  19 *   [#lang racket/kernel](http://docs.racket-lang.org/reference/Kernel_Forms_and_Functions.html)
  20
  21 *   [Extending DrRacket/Teachpacks](http://docs.racket-lang.org/drracket/extending-drracket.html#%28part._teachpacks%29)
  22 *   [Adding Languages to DrRacket](http://docs.racket-lang.org/tools/adding-languages.html)
  23 *   [#lang](http://docs.racket-lang.org/drracket/module.html) [more](http://docs.racket-lang.org/guide/Module_Syntax.html#%28part._hash-lang%29)
  24 *   [Output Printing Styles](http://docs.racket-lang.org/drracket/output-syntax.html)