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Update copyright.
Add commentary; nfc.
This commit is contained in:
Thien-Thi Nguyen
parent
ead4514696
commit
0706ae06dc
3 changed files with 84 additions and 54 deletions
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@ -1,6 +1,6 @@
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;;;; srfi-11.scm --- SRFI-11 procedures for Guile
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;;; Copyright (C) 2000, 2001 Free Software Foundation, Inc.
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;;; Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
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;;;
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;;; This program is free software; you can redistribute it and/or
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;;; modify it under the terms of the GNU General Public License as
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@ -41,6 +41,24 @@
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;;; whether to permit this exception to apply to your modifications.
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;;; If you do not wish that, delete this exception notice.
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;;; Commentary:
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;; This module exports two syntax forms: let-values and let*-values.
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;;
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;; Sample usage:
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;;
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;; (let-values (((x y . z) (foo a b))
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;; ((p q) (bar c)))
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;; (baz x y z p q))
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;;
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;; This binds `x' and `y' to the first to values returned by `foo',
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;; `z' to the rest of the values from `foo', and `p' and `q' to the
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;; values returned by `bar'. All of these are available to `baz'.
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;;
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;; let*-values : let-values :: let* : let
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;;; Code:
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(define-module (srfi srfi-11)
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:use-module (ice-9 syncase)
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:export-syntax (let-values let*-values))
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@ -100,7 +118,7 @@
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; body ...)
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; (lambda lambda-tmps
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; (let-values-helper "cwv" lv-bindings final-let-bindings body ...)))
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; ((_ "consumer" (var-1 var-2 ...) (lambda-tmp ...) final-let-bindings lv-bindings
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; body ...)
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; (let-values-helper "consumer"
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@ -165,7 +183,7 @@
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; tmp-vars
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; ((vars-2 binding-2) ...)
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; body ...))))))
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;
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;
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; (syntax-rules ()
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; ((_ () body ...)
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; (begin body ...))
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@ -184,7 +202,7 @@
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((null? elts) '())
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((pair? elts) (cons (proc (car elts)) (map-1-dot proc (cdr elts))))
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(else (proc elts))))
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(define (undot-list lst)
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;; produce a non-dotted list from a possibly dotted list.
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(cond
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@ -199,7 +217,7 @@
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(let-vars (map (lambda (sym tmp) (list sym tmp))
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(undot-list (car var-binding))
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(undot-list new-tmps))))
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(if (null? (cdr vars))
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`(call-with-values (lambda () ,(cadr var-binding))
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(lambda ,new-tmps
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@ -209,7 +227,7 @@
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(lambda ,new-tmps
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,(let-values-helper (cdr vars) body
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(cons let-vars prev-let-vars)))))))
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(if (null? vars)
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`(begin ,@body)
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(let-values-helper vars body '())))
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@ -242,7 +260,7 @@
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body ...))))))
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; Alternate define-macro implementation...
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;
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;
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; (define-macro (let*-values vars . body)
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; (define (let-values-helper vars body)
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; (let ((var-binding (car vars)))
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@ -253,7 +271,7 @@
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; `(call-with-values (lambda () ,(cadr var-binding))
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; (lambda ,(car var-binding)
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; ,(let-values-helper (cdr vars) body))))))
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; (if (null? vars)
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; `(begin ,@body)
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; (let-values-helper vars body)))
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@ -1,45 +1,51 @@
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;;;; srfi-13.scm --- SRFI-13 procedures for Guile
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;;;;
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;;;; Copyright (C) 2001 Free Software Foundation, Inc.
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;;;;
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;;;; This program is free software; you can redistribute it and/or
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;;;; modify it under the terms of the GNU General Public License as
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;;;; published by the Free Software Foundation; either version 2, or
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;;;; (at your option) any later version.
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;;;;
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;;;; This program is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;;; General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU General Public License
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;;;; along with this software; see the file COPYING. If not, write to
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;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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;;;; Boston, MA 02111-1307 USA
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;;;;
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;;;; As a special exception, the Free Software Foundation gives permission
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;;;; for additional uses of the text contained in its release of GUILE.
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;;;;
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;;;; The exception is that, if you link the GUILE library with other files
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;;;; to produce an executable, this does not by itself cause the
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;;;; resulting executable to be covered by the GNU General Public License.
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;;;; Your use of that executable is in no way restricted on account of
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;;;; linking the GUILE library code into it.
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;;;;
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;;;; This exception does not however invalidate any other reasons why
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;;;; the executable file might be covered by the GNU General Public License.
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;;;;
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;;;; This exception applies only to the code released by the
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;;;; Free Software Foundation under the name GUILE. If you copy
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;;;; code from other Free Software Foundation releases into a copy of
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;;;; GUILE, as the General Public License permits, the exception does
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;;;; not apply to the code that you add in this way. To avoid misleading
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;;;; anyone as to the status of such modified files, you must delete
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;;;; this exception notice from them.
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;;;;
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;;;; If you write modifications of your own for GUILE, it is your choice
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;;;; whether to permit this exception to apply to your modifications.
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;;;; If you do not wish that, delete this exception notice.
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;;; srfi-13.scm --- SRFI-13 procedures for Guile
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;;;
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;;; Copyright (C) 2001, 2002 Free Software Foundation, Inc.
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;;;
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;;; This program is free software; you can redistribute it and/or
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;;; modify it under the terms of the GNU General Public License as
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;;; published by the Free Software Foundation; either version 2, or
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;;; (at your option) any later version.
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;;;
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;;; This program is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;; General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with this software; see the file COPYING. If not, write to
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;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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;;; Boston, MA 02111-1307 USA
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;;;
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;;; As a special exception, the Free Software Foundation gives permission
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;;; for additional uses of the text contained in its release of GUILE.
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;;;
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;;; The exception is that, if you link the GUILE library with other files
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;;; to produce an executable, this does not by itself cause the
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;;; resulting executable to be covered by the GNU General Public License.
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;;; Your use of that executable is in no way restricted on account of
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;;; linking the GUILE library code into it.
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;;;
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;;; This exception does not however invalidate any other reasons why
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;;; the executable file might be covered by the GNU General Public License.
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;;;
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;;; This exception applies only to the code released by the
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;;; Free Software Foundation under the name GUILE. If you copy
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;;; code from other Free Software Foundation releases into a copy of
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;;; GUILE, as the General Public License permits, the exception does
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;;; not apply to the code that you add in this way. To avoid misleading
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;;; anyone as to the status of such modified files, you must delete
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;;; this exception notice from them.
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;;;
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;;; If you write modifications of your own for GUILE, it is your choice
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;;; whether to permit this exception to apply to your modifications.
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;;; If you do not wish that, delete this exception notice.
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;;; Commentary:
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;; This module is fully documented in the Guile Reference Manual.
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;;; Code:
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(define-module (srfi srfi-13))
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@ -1,6 +1,6 @@
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;;; srfi-19.scm --- SRFI-19 procedures for Guile
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;;;
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;;; Copyright (C) 2001 Free Software Foundation, Inc.
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;;; Copyright (C) 2001, 2002 Free Software Foundation, Inc.
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;;;
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;;; This program is free software; you can redistribute it and/or
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;;; modify it under the terms of the GNU General Public License as
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@ -40,9 +40,15 @@
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;;; If you write modifications of your own for GUILE, it is your choice
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;;; whether to permit this exception to apply to your modifications.
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;;; If you do not wish that, delete this exception notice.
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;;;
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;;; Originally from SRFI reference implementation by Will Fitzgerald.
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;;; Ported to Guile by Rob Browning <rlb@cs.utexas.edu>
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;;; Commentary:
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;; Originally from SRFI reference implementation by Will Fitzgerald.
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;; Ported to Guile by Rob Browning <rlb@cs.utexas.edu>.
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;;
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;; This module is fully documented in the Guile Reference Manual.
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;;; Code:
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;; FIXME: I haven't checked a decent amount of this code for potential
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;; performance improvements, but I suspect that there may be some
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