Language
========

The language provided by picrin.

Libraries
---------

- ``(scheme base)``
- ``(scheme write)``
- ``(scheme cxr)``
- ``(scheme file)``
- ``(scheme inexact)``
- ``(scheme time)``
- ``(scheme process-context)``
- ``(scheme load)``
- ``(scheme lazy)``
- ``(picrin macro)``

  - ``define-macro``
  - ``gensym``
  - ``macroexpand``

  Old-fashioned macro.

  - ``make-syntactic-closure``
  - ``identifier?``
  - ``identifier=?``

  Syntactic closures.

  - ``er-macro-transformer``
  - ``ir-macro-transformer``

  Explicit renaming macro family.

- ``(picrin regexp)``

  - ``(regexp? obj)``
  - ``(regexp ptrn [flags])``

  Compiles pattern string into a regexp object. A string ``flags`` may contain any of #\g, #\i, #\m.

  - ``(regexp-match re input)``

  Returns two values: a list of match strings, and a list of match indeces.

  - ``(regexp-replace re input txt)``
  - ``(regexp-split re input)``

- ``(picrin control)``

  - ``(reset h)``
  - ``(shift k)``

  Delimited control operators.

- ``(picrin user)``

  When you start the REPL, you are dropped into here.

- ``(srfi 1)``

  List manipulation library.

- ``(srfi 26)``

  Cut/cute macros.

- ``(srfi 95)``

  Sorting and Marging.

The REPL
--------

At the REPL start-up time, some usuful built-in libraries listed below will be automatically imported.

- ``(scheme base)``
- ``(scheme load)``
- ``(scheme process-context)``
- ``(scheme write)``
- ``(scheme file)``
- ``(scheme inexact)``
- ``(scheme cxr)``
- ``(scheme lazy)``
- ``(scheme time)``