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+;;; pcmpl-gnu --- completions for GNU project tools
+
+;; Copyright (C) 1999, 2000 Free Software 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.
+
+;;; Code:
+
+(provide 'pcmpl-gnu)
+
+(require 'pcomplete)
+(require 'pcmpl-unix)
+
+(defgroup pcmpl-gnu nil
+  "Completions for GNU project tools."
+  :group 'pcomplete)
+
+;; User Variables:
+
+(defcustom pcmpl-gnu-makefile-regexps
+  '("\\`Makefile\\." "\\.mak\\'")
+  "*A list of regexps that will match Makefile names."
+  :type '(repeat regexp)
+  :group 'pcmpl-gnu)
+
+;; Functions:
+
+;;;###autoload
+(defun pcomplete/gzip ()
+  "Completion for `gzip'."
+  (let ((pcomplete-help "(gzip)"))
+    (pcomplete-opt "cdfhlLnNqrStvV123456789")
+    (while (pcomplete-here
+	    (pcmpl-gnu-zipped-files
+	     (catch 'has-d-flag
+	       (let ((args pcomplete-args))
+		 (while args
+		   (if (string-match "\\`-.*[dt]" (car args))
+		       (throw 'has-d-flag t))
+		   (setq args (cdr args))))))))))
+
+(defun pcmpl-gnu-zipped-files (unzip-p)
+  "Find all zipped or unzipped files: the inverse of UNZIP-P."
+  (pcomplete-entries
+   nil
+   (function
+    (lambda (entry)
+      (when (and (file-readable-p entry)
+		 (file-regular-p entry))
+	(let ((zipped (string-match "\\.\\(t?gz\\|\\(ta\\)?Z\\)\\'"
+				    entry)))
+	  (or (and unzip-p zipped)
+	      (and (not unzip-p) (not zipped)))))))))
+
+;;;###autoload
+(defun pcomplete/bzip2 ()
+  "Completion for `bzip2'."
+  (pcomplete-opt "hdzkftcqvLVs123456789")
+  (while (pcomplete-here
+	  (pcmpl-gnu-bzipped-files
+	   (catch 'has-d-flag
+	     (let ((args pcomplete-args))
+	       (while args
+		 (if (string-match "\\`-.*[dt]" (car args))
+		     (throw 'has-d-flag t))
+		 (setq args (cdr args)))))))))
+
+(defun pcmpl-gnu-bzipped-files (unzip-p)
+  "Find all zipped or unzipped files: the inverse of UNZIP-P."
+  (pcomplete-entries
+   nil
+   (function
+    (lambda (entry)
+      (when (and (file-readable-p entry)
+		 (file-regular-p entry))
+	(let ((zipped (string-match "\\.\\(t?z2\\|bz2\\)\\'" entry)))
+	  (or (and unzip-p zipped)
+	      (and (not unzip-p) (not zipped)))))))))
+
+;;;###autoload
+(defun pcomplete/make ()
+  "Completion for GNU `make'."
+  (let ((pcomplete-help "(make)Top"))
+    (pcomplete-opt "bmC/def(pcmpl-gnu-makefile-names)hiI/j?kl?no.pqrsStvwW.")
+    (while (pcomplete-here (pcmpl-gnu-make-rule-names) nil 'identity))))
+
+(defun pcmpl-gnu-makefile-names ()
+  "Return a list of possible makefile names."
+  (let ((names (list t))
+	(reg pcmpl-gnu-makefile-regexps))
+    (while reg
+      (nconc names (pcomplete-entries (car reg)))
+      (setq reg (cdr reg)))
+    (cdr names)))
+
+(defun pcmpl-gnu-make-rule-names ()
+  "Return a list of possible make rule names in MAKEFILE."
+  (let* ((minus-f (member "-f" pcomplete-args))
+	 (makefile (or (cadr minus-f) "Makefile"))
+	 rules)
+    (if (not (file-readable-p makefile))
+	(unless minus-f (list "-f"))
+      (with-temp-buffer
+	(insert-file-contents-literally makefile)
+	(while (re-search-forward
+		(concat "^\\s-*\\([^\n#%.$][^:=\n]*\\)\\s-*:[^=]") nil t)
+	  (setq rules (append (split-string (match-string 1)) rules))))
+      (pcomplete-uniqify-list rules))))
+
+(defcustom pcmpl-gnu-tarfile-regexp
+  "\\.t\\(ar\\(\\.\\(gz\\|bz2\\|Z\\)\\)?\\|gz\\|a[zZ]\\|z2\\)\\'"
+  "*A regexp which matches any tar archive."
+  :type 'regexp
+  :group 'pcmpl-gnu)
+
+(defvar pcmpl-gnu-tar-buffer nil)
+
+;;;###autoload
+(defun pcomplete/tar ()
+  "Completion for the GNU tar utility."
+  ;; options that end in an equal sign will want further completion...
+  (let (saw-option complete-within)
+    (setq pcomplete-suffix-list (cons ?= pcomplete-suffix-list))
+    (while (pcomplete-match "^-" 0)
+      (setq saw-option t)
+      (if (pcomplete-match "^--" 0)
+	  (if (pcomplete-match "^--\\([^= \t\n\f]*\\)\\'" 0)
+	      (pcomplete-here*
+	       '("--absolute-names"
+		 "--after-date="
+		 "--append"
+		 "--atime-preserve"
+		 "--backup"
+		 "--block-number"
+		 "--blocking-factor="
+		 "--catenate"
+		 "--checkpoint"
+		 "--compare"
+		 "--compress"
+		 "--concatenate"
+		 "--confirmation"
+		 "--create"
+		 "--delete"
+		 "--dereference"
+		 "--diff"
+		 "--directory="
+		 "--exclude="
+		 "--exclude-from="
+		 "--extract"
+		 "--file="
+		 "--files-from="
+		 "--force-local"
+		 "--get"
+		 "--group="
+		 "--gzip"
+		 "--help"
+		 "--ignore-failed-read"
+		 "--ignore-zeros"
+		 "--incremental"
+		 "--info-script="
+		 "--interactive"
+		 "--keep-old-files"
+		 "--label="
+		 "--list"
+		 "--listed-incremental"
+		 "--mode="
+		 "--modification-time"
+		 "--multi-volume"
+		 "--new-volume-script="
+		 "--newer="
+		 "--newer-mtime"
+		 "--no-recursion"
+		 "--null"
+		 "--numeric-owner"
+		 "--old-archive"
+		 "--one-file-system"
+		 "--owner="
+		 "--portability"
+		 "--posix"
+		 "--preserve"
+		 "--preserve-order"
+		 "--preserve-permissions"
+		 "--read-full-records"
+		 "--record-size="
+		 "--recursive-unlink"
+		 "--remove-files"
+		 "--rsh-command="
+		 "--same-order"
+		 "--same-owner"
+		 "--same-permissions"
+		 "--sparse"
+		 "--starting-file="
+		 "--suffix="
+		 "--tape-length="
+		 "--to-stdout"
+		 "--totals"
+		 "--uncompress"
+		 "--ungzip"
+		 "--unlink-first"
+		 "--update"
+		 "--use-compress-program="
+		 "--verbose"
+		 "--verify"
+		 "--version"
+		 "--volno-file=")))
+	(pcomplete-opt "01234567ABCFGKLMNOPRSTUVWXZbcdfghiklmoprstuvwxz"))
+      (cond
+       ((pcomplete-match "\\`--after-date=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--backup=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--blocking-factor=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--directory=\\(.*\\)" 0)
+	(pcomplete-here* (pcomplete-dirs)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--exclude-from=\\(.*\\)" 0)
+	(pcomplete-here* (pcomplete-entries)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--exclude=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--\\(extract\\|list\\)\\'" 0)
+	(setq complete-within t))
+       ((pcomplete-match "\\`--file=\\(.*\\)" 0)
+	(pcomplete-here* (pcomplete-dirs-or-entries pcmpl-gnu-tarfile-regexp)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--files-from=\\(.*\\)" 0)
+	(pcomplete-here* (pcomplete-entries)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--group=\\(.*\\)" 0)
+	(pcomplete-here* (pcmpl-unix-group-names)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--info-script=\\(.*\\)" 0)
+	(pcomplete-here* (pcomplete-entries)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--label=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--mode=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--new-volume-script=\\(.*\\)" 0)
+	(pcomplete-here* (pcomplete-entries)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--newer=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--owner=\\(.*\\)" 0)
+	(pcomplete-here* (pcmpl-unix-user-names)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--record-size=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--rsh-command=\\(.*\\)" 0)
+	(pcomplete-here* (funcall pcomplete-command-completion-function)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--starting-file=\\(.*\\)" 0)
+	(pcomplete-here* (pcomplete-entries)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--suffix=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--tape-length=" 0)
+	(pcomplete-here*))
+       ((pcomplete-match "\\`--use-compress-program=\\(.*\\)" 0)
+	(pcomplete-here* (funcall pcomplete-command-completion-function)
+			 (pcomplete-match-string 1 0)))
+       ((pcomplete-match "\\`--volno-file=\\(.*\\)" 0)
+	(pcomplete-here* (pcomplete-entries)
+			 (pcomplete-match-string 1 0)))))
+    (setq pcomplete-suffix-list (cdr pcomplete-suffix-list))
+    (unless saw-option
+      (pcomplete-here
+       (mapcar 'char-to-string
+	       (string-to-list
+		"01234567ABCFGIKLMNOPRSTUVWXZbcdfghiklmoprstuvwxz")))
+      (if (pcomplete-match "[xt]" 'first 1)
+	  (setq complete-within t)))
+    (pcomplete-here (pcomplete-dirs-or-entries pcmpl-gnu-tarfile-regexp))
+    (setq pcmpl-gnu-tar-buffer (find-file-noselect (pcomplete-arg 1)))
+    (while (pcomplete-here
+	    (if complete-within
+		(with-current-buffer pcmpl-gnu-tar-buffer
+		  (mapcar
+		   (function
+		    (lambda (entry)
+		      (tar-header-name (cdr entry))))
+		   tar-parse-info))
+	      (pcomplete-entries))
+	    nil 'identity))))
+
+;;;###autoload
+(defalias 'pcomplete/gdb 'pcomplete/xargs)
+
+;;; pcmpl-gnu.el ends here