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1 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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2 ;;
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3 ;; File: dired-uu.el
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4 ;; Dired Version: #Revision: 7.9 $
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5 ;; RCS:
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6 ;; Description: Commands for uuencoding/uudecoding marked files.
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7 ;; Author: Sandy Rutherford <sandy@math.ubc.ca>
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8 ;;
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9 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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10
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11 ;;; Requirements and provisions
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12 (provide 'dired-uu)
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13 (require 'dired)
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14
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15 (defvar dired-uu-files-to-decode nil)
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16 ;; Fluid var to pass data inside dired-create-files.
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17
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18 (defun dired-uucode-file (file ok-flag)
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19 ;; uuencode or uudecode FILE.
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20 ;; Don't really support the ok-flag, but needed for compatibility
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21 (let ((handler (find-file-name-handler file 'dired-uucode-file)))
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22 (cond (handler
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23 (funcall handler 'dired-uucode-file file ok-flag))
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24 ((or (file-symlink-p file) (file-directory-p file))
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25 nil)
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26 (t
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27 (if (assoc file dired-uu-files-to-decode)
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28 (let ((default-directory (file-name-directory file)))
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29 (if (dired-check-process
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30 (concat "Uudecoding " file) shell-file-name "-c"
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31 (format "uudecode %s" file))
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32 (signal 'file-error (list "Error uudecoding" file))))
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33 (let ((nfile (concat file ".uu")))
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34 (if (dired-check-process
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35 (concat "Uuencoding " file) shell-file-name "-c"
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36 (format "uuencode %s %s > %s"
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37 file (file-name-nondirectory file) nfile))
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38 (signal 'file-error (list "Error uuencoding" file)))))))))
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39
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40 (defun dired-uucode-out-file (file)
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41 ;; Returns the name of the output file for the uuencoded FILE.
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42 (let ((buff (get-buffer-create " *dired-check-process output*"))
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43 (case-fold-search t))
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44 (save-excursion
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45 (set-buffer buff)
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46 (erase-buffer)
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47 (if (string-equal "18." (substring emacs-version 0 3))
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48 (call-process "head" file buff nil "-n" "1")
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49 (insert-file-contents file nil 0 80))
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50 (goto-char (point-min))
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51 (if (looking-at "begin [0-9]+ \\([^\n]*\\)\n")
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52 (expand-file-name
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53 (buffer-substring (match-beginning 1) (match-end 1))
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54 (file-name-directory file))
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55 nil))))
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56
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57 (defun dired-do-uucode (&optional arg files to-decode)
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58 "Uuencode or uudecode marked (or next ARG) files."
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59 (interactive
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60 (let* ((dir (dired-current-directory))
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61 (files (dired-get-marked-files nil current-prefix-arg))
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62 (arg (prefix-numeric-value current-prefix-arg))
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63 (total (length files))
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64 rfiles decoders ofile decode encode hint-p)
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65 (mapcar
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66 (function
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67 (lambda (fn)
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68 (if (setq ofile (dired-uucode-out-file fn))
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69 (setq decoders (cons (cons fn ofile) decoders)))))
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70 files)
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71 (setq decode (length decoders)
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72 encode (- total decode)
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73 hint-p (not (or (zerop decode) (zerop encode))))
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74 (setq rfiles
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75 (mapcar
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76 (function
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77 (lambda (fn)
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78 (if hint-p
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79 (concat
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80 (if (assoc fn decoders) " [de] " " [en] ")
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81 (dired-make-relative fn dir t))
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82 (dired-make-relative fn dir t))))
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83 files))
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84 (or (memq 'uuencode dired-no-confirm)
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85 (dired-mark-pop-up nil 'uuencode rfiles 'y-or-n-p
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86 (cond
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87 ((null decoders)
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88 (if (= encode 1)
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89 (format "Uuencode %s? " (car rfiles))
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90 (format "Uuencode %d file%s? "
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91 encode (dired-plural-s encode))))
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92 ((zerop encode)
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93 (if (= decode 1)
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94 (format "Uudecode %s? " (car rfiles))
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95 (format "Uudecode %d file%s? "
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96 decode (dired-plural-s decode))))
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97 (t
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98 (format "Uudecode %d and uuencode %d file%s? "
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99 decode encode (dired-plural-s encode)))))
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100 (setq arg 0))
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101 (list arg files decoders)))
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102 (let ((dired-uu-files-to-decode to-decode)
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103 out-file)
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104 (if (not (zerop arg))
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105 (dired-create-files
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106 'dired-uucode-file
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107 "Uuencode or Uudecode"
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108 files
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109 (function
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110 (lambda (fn)
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111 (if (setq out-file (assoc fn dired-uu-files-to-decode))
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112 (cdr out-file)
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113 (concat fn ".uu"))))
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114 dired-keep-marker-uucode nil t))))
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115
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116 ;;; end of dired-uu.el
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