lisp/forms-d2.el

   1 ;;; forms-d2.el --- demo forms-mode -*- no-byte-compile: t -*-
   2
   3 ;; Copyright (C) 1991, 1994, 1995, 1996, 1997, 2001, 2002, 2003,
   4 ;;   2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
   5
   6 ;; Author: Johan Vromans <jvromans@squirrel.nl>
   7 ;; Created: 1989
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;; This sample forms exploit most of the features of forms mode.
  27
  28 ;;; Code:
  29
  30 ;; Set the name of the data file.
  31 (setq forms-file (expand-file-name "forms-d2.dat" data-directory))
  32
  33 ;; Use 'forms-enumerate' to set field names and number thereof.
  34 (setq forms-number-of-fields
  35       (forms-enumerate
  36        '(arch-newsgroup                 ; 1
  37          arch-volume                    ; 2
  38          arch-issue                     ; and ...
  39          arch-article                   ; ... so
  40          arch-shortname                 ; ... ... on
  41          arch-parts
  42          arch-from
  43          arch-longname
  44          arch-keywords
  45          arch-date
  46          arch-remarks)))
  47
  48 ;; The following functions are used by this form for layout purposes.
  49 ;;
  50 (defun arch-tocol (target &optional fill)
  51   "Produces a string to skip to column TARGET.  Prepends newline if needed.
  52 The optional FILL should be a character, used to fill to the column."
  53   (if (null fill)
  54       (setq fill ?\s))
  55   (if (< target (current-column))
  56       (concat "\n" (make-string target fill))
  57     (make-string (- target (current-column)) fill)))
  58 ;;
  59 (defun arch-rj (target field &optional fill)
  60   "Produces a string to skip to column TARGET minus the width of field FIELD.
  61 Prepends newline if needed.  The optional FILL should be a character,
  62 used to fill to the column."
  63   (arch-tocol (- target (length (nth field forms-fields))) fill))
  64
  65 ;; Record filters.
  66 ;;
  67 (defun arch-new-record-filter (the-record)
  68   "Form a new record with some defaults."
  69   (aset the-record arch-from (user-full-name))
  70   (aset the-record arch-date (current-time-string))
  71   the-record                            ; return it
  72 )
  73 (setq forms-new-record-filter 'arch-new-record-filter)
  74
  75 ;; The format list.
  76 (setq forms-format-list
  77      (list
  78        "====== Public Domain Software Archive ======\n\n"
  79        arch-shortname
  80        " - "                    arch-longname
  81        "\n\n"
  82        "Article: "              arch-newsgroup
  83        "/"                      arch-article
  84        " "
  85        '(arch-tocol 40)
  86        "Issue: "                arch-issue
  87        " "
  88        '(arch-rj 73 10)
  89        "Date: "                 arch-date
  90        "\n\n"
  91        "Submitted by: "         arch-from
  92        "\n"
  93        '(arch-tocol 79 ?-)
  94        "\n"
  95        "Keywords: "             arch-keywords
  96        "\n\n"
  97        "Parts: "                arch-parts
  98        "\n\n====== Remarks ======\n\n"
  99        arch-remarks
 100      ))
 101
 102 ;; That's all, folks!
 103
 104 ;; arch-tag: 8e5d5dac-7abf-4722-ab5e-03eb749beaca
 105 ;;; forms-d2.el ends here