package.lisp

   1 ;;; package.lisp --- Common Lisp Package definition
   2
   3 ;; Copyright (C) 2010 Didier Verna
   4
   5 ;; Author:        Didier Verna <didier@lrde.epita.fr>
   6 ;; Maintainer:    Didier Verna <didier@lrde.epita.fr>
   7 ;; Created:       Wed Jun 18 08:49:39 2008
   8 ;; Last Revision: Sat Jun 12 17:55:37 2010
   9
  10 ;; This file is part of Clon.
  11
  12 ;; Clon is free software; you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License version 3,
  14 ;; as published by the Free Software Foundation.
  15
  16 ;; Clon is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with this program; if not, write to the Free Software
  23 ;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24
  25
  26 ;;; Commentary:
  27
  28 ;; Contents management by FCM version 0.1.
  29
  30
  31 ;;; Code:
  32
  33 (in-package :cl-user)
  34
  35 (defpackage :com.dvlsoft.clon
  36     (:use :cl)
  37   (:shadow :*readtable*)
  38   (:import-from :com.dvlsoft.clon.asdf
  39     :define-constant
  40     :+release-major-level+
  41     :+release-minor-level+
  42     :+release-status+
  43     :+release-status-level+
  44     :+release-name+
  45     :version)
  46   (:export
  47    ;; From com.dvlsoft.clon.asd:
  48    :+release-major-level+
  49    :+release-minor-level+
  50    :+release-status+
  51    :+release-status-level+
  52    :+release-name+
  53    :version
  54    ;; From package.lisp:
  55    :nickname-package
  56    ;; From src/util.lisp:
  57    :exit
  58    :cmdline
  59    :dump
  60    ;; From src/text.lisp:
  61    :make-text
  62    ;; From src/options/flag.lisp:
  63    :make-flag
  64    ;; From src/options/switch.lisp:
  65    :make-switch
  66    ;; From src/options/stropt.lisp:
  67    :make-stropt
  68    ;; From src/options/lispobj.lisp:
  69    :make-lispobj
  70    ;; From src/options/path.lisp:
  71    :make-path
  72    ;; From src/options/enum.lisp:
  73    :make-enum
  74    ;; From src/options/xswitch.lisp:
  75    :make-xswitch
  76    ;; From src/group.lisp:
  77    :make-group :defgroup
  78    ;; From src/synopsis.lisp:
  79    :*default-synopsis*
  80    :make-synopsis :defsynopsis
  81    ;; From src/context.lisp:
  82    :*current-context*
  83    :make-context
  84    :with-context
  85    :progname
  86    :remainder
  87    :getopt
  88    :getopt-cmdline
  89    :multiple-value-getopt-cmdline
  90    :do-cmdline-options
  91    :help))
  92
  93
  94 (in-package :com.dvlsoft.clon)
  95
  96
  97 ;; -------------------
  98 ;; External utilities:
  99 ;; -------------------
 100
 101 (defun nickname-package (&optional (nickname :clon))
 102   "Add NICKNAME (:CLON by default) to the :COM.DVLSOFT.CLON package."
 103   (rename-package :com.dvlsoft.clon
 104                   (package-name :com.dvlsoft.clon)
 105                   (adjoin nickname (package-nicknames :com.dvlsoft.clon)
 106                           :test #'string-equal)))
 107
 108
 109 ;; -------------------
 110 ;; Internal utilities:
 111 ;; -------------------
 112
 113 (defvar *readtable* (copy-readtable)
 114   "The Clon readtable.")
 115
 116 (defun tilde-reader (stream char)
 117   "Read a series of ~\"strings\" to be concatenated together."
 118   (declare (ignore char))
 119   (apply #'concatenate 'string
 120          (loop :for str := (read stream t nil t)
 121                :then (progn (read-char stream t nil t)
 122                             (read stream t nil t))
 123                :collect str
 124                :while (eql (peek-char t stream nil nil t) #\~))))
 125
 126 (set-macro-character #\~ #'tilde-reader nil *readtable*)
 127
 128 ;; ECL does not like to see undefined reader macros in expressions that
 129 ;; belong to other compilers. For instance this will break:
 130 ;; #+ccl (#_ccl-only-function)
 131 ;; It seems to be a correct behavior (see *read-suppress* in CLHS), although
 132 ;; other implementations like SBCL and CMUCL are more gentle. The solution I
 133 ;; use is to define those reader macros to simply return nil.
 134 #+ecl
 135 (progn
 136   (defun dummy-reader (stream subchar args)
 137     "Return nil."
 138     (declare (ignore stream subchar args))
 139     nil)
 140
 141   (set-dispatch-macro-character #\# #\_ #'dummy-reader *readtable*)
 142   (set-dispatch-macro-character #\# #\$ #'dummy-reader *readtable*))
 143
 144 (defmacro in-readtable (name)
 145   "Set the current readtable to the value of NAME::*READTABLE*."
 146   `(eval-when (:compile-toplevel :load-toplevel :execute)
 147     (setf cl:*readtable* (symbol-value (find-symbol "*READTABLE*" ,name)))))
 148
 149
 150 ;;; package.lisp ends here