pcomplete / pcmpl-gnu.el

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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
  '("\\`GNUmakefile" "\\`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)
		       (if (file-exists-p "GNUmakefile")
			   "GNUmakefile"
			 "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
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