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diff --git a/lisp/eshell/em-xtra.el b/lisp/eshell/em-xtra.el
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+;;; em-xtra --- extra alias functions
+
+;; Copyright (C) 1999, 2000 Free Sofware Foundation
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+(provide 'em-xtra)
+
+(eval-when-compile (require 'esh-maint))
+
+(defgroup eshell-xtra nil
+  "This module defines some extra alias functions which are entirely
+optional.  They can be viewed as samples for how to write Eshell alias
+functions, or as aliases which make some of Emacs' behavior more
+naturally accessible within Emacs."
+  :tag "Extra alias functions"
+  :group 'eshell-module)
+
+;;; Commentary:
+
+(require 'compile)
+
+;;; Functions:
+
+(defun eshell/expr (&rest args)
+  "Implementation of expr, using the calc package."
+  (if (not (fboundp 'calc-eval))
+      (throw 'eshell-replace-command
+	     (eshell-parse-command "*expr" args))
+    ;; to fool the byte-compiler...
+    (let ((func 'calc-eval))
+      (funcall func (eshell-flatten-and-stringify args)))))
+
+(defun eshell/substitute (&rest args)
+  "Easy front-end to `intersection', for comparing lists of strings."
+  (apply 'substitute (car args) (cadr args) :test 'equal
+	 (cddr args)))
+
+(defun eshell/count (&rest args)
+  "Easy front-end to `intersection', for comparing lists of strings."
+  (apply 'count (car args) (cadr args) :test 'equal
+	 (cddr args)))
+
+(defun eshell/mismatch (&rest args)
+  "Easy front-end to `intersection', for comparing lists of strings."
+  (apply 'mismatch (car args) (cadr args) :test 'equal
+	 (cddr args)))
+
+(defun eshell/union (&rest args)
+  "Easy front-end to `intersection', for comparing lists of strings."
+  (apply 'union (car args) (cadr args) :test 'equal
+	 (cddr args)))
+
+(defun eshell/intersection (&rest args)
+  "Easy front-end to `intersection', for comparing lists of strings."
+  (apply 'intersection (car args) (cadr args) :test 'equal
+	 (cddr args)))
+
+(defun eshell/set-difference (&rest args)
+  "Easy front-end to `intersection', for comparing lists of strings."
+  (apply 'set-difference (car args) (cadr args) :test 'equal
+	 (cddr args)))
+
+(defun eshell/set-exclusive-or (&rest args)
+  "Easy front-end to `intersection', for comparing lists of strings."
+  (apply 'set-exclusive-or (car args) (cadr args) :test 'equal
+	 (cddr args)))
+
+(defalias 'eshell/ff 'find-name-dired)
+(defalias 'eshell/gf 'find-grep-dired)
+
+(defun pcomplete/bcc32 ()
+  "Completion function for Borland's C++ compiler."
+  (let ((cur (pcomplete-arg 0)))
+    (cond
+     ((string-match "\\`-w\\([^;]+;\\)*\\([^;]*\\)\\'" cur)
+      (pcomplete-here
+       '("ali" "amb" "amp" "asc" "asm" "aus" "bbf" "bei" "big" "ccc"
+	 "cln" "cod" "com" "cpt" "csu" "def" "dig" "dpu" "dsz" "dup"
+	 "eas" "eff" "ext" "hch" "hid" "ias" "ibc" "ifr" "ill" "nil"
+	 "lin" "lvc" "mcs" "mes" "mpc" "mpd" "msg" "nak" "ncf" "nci"
+	 "ncl" "nfd" "ngu" "nin" "nma" "nmu" "nod" "nop" "npp" "nsf"
+	 "nst" "ntd" "nto" "nvf" "obi" "obs" "ofp" "osh" "ovf" "par"
+	 "pch" "pck" "pia" "pin" "pow" "prc" "pre" "pro" "rch" "ret"
+	 "rng" "rpt" "rvl" "sig" "spa" "stl" "stu" "stv" "sus" "tai"
+	 "tes" "thr" "ucp" "use" "voi" "zdi") (match-string 2 cur)))
+     ((string-match "\\`-[LIn]\\([^;]+;\\)*\\([^;]*\\)\\'" cur)
+      (pcomplete-here (pcomplete-dirs) (match-string 2 cur)))
+     ((string-match "\\`-[Ee]\\(.*\\)\\'" cur)
+      (pcomplete-here (pcomplete-dirs-or-entries "\\.[Ee][Xx][Ee]\\'")
+		      (match-string 1 cur)))
+     ((string-match "\\`-o\\(.*\\)\\'" cur)
+      (pcomplete-here (pcomplete-dirs-or-entries "\\.[Oo][Bb][Jj]\\'")
+		      (match-string 1 cur)))
+     (t
+      (pcomplete-opt "3456ABCDEHIKLMNOPRSTUVXabcdefgijklnoptuvwxyz"))))
+  (while (pcomplete-here
+	  (pcomplete-dirs-or-entries "\\.[iCc]\\([Pp][Pp]\\)?\\'"))))
+
+(defalias 'pcomplete/bcc 'pcomplete/bcc32)
+
+;;; Code:
+
+;;; em-xtra.el ends here