lisp/forms-d2.el

   1 ;;; forms-d2.el --- demo forms-mode -*- no-byte-compile: t -*-
   2
   3 ;; Copyright (C) 1991, 1994-1997, 2001-2012 Free Software Foundation, Inc.
   4
   5 ;; Author: Johan Vromans <jvromans@squirrel.nl>
   6 ;; Created: 1989
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software: you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation, either version 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;; This sample forms exploit most of the features of forms mode.
  26
  27 ;;; Code:
  28
  29 ;; Set the name of the data file.
  30 (setq forms-file (expand-file-name "forms-d2.dat" data-directory))
  31
  32 ;; Use 'forms-enumerate' to set field names and number thereof.
  33 (setq forms-number-of-fields
  34       (forms-enumerate
  35        '(arch-newsgroup                 ; 1
  36          arch-volume                    ; 2
  37          arch-issue                     ; and ...
  38          arch-article                   ; ... so
  39          arch-shortname                 ; ... ... on
  40          arch-parts
  41          arch-from
  42          arch-longname
  43          arch-keywords
  44          arch-date
  45          arch-remarks)))
  46
  47 ;; The following functions are used by this form for layout purposes.
  48 ;;
  49 (defun arch-tocol (target &optional fill)
  50   "Produces a string to skip to column TARGET.  Prepends newline if needed.
  51 The optional FILL should be a character, used to fill to the column."
  52   (if (null fill)
  53       (setq fill ?\s))
  54   (if (< target (current-column))
  55       (concat "\n" (make-string target fill))
  56     (make-string (- target (current-column)) fill)))
  57 ;;
  58 (defun arch-rj (target field &optional fill)
  59   "Produces a string to skip to column TARGET minus the width of field FIELD.
  60 Prepends newline if needed.  The optional FILL should be a character,
  61 used to fill to the column."
  62   (arch-tocol (- target (length (nth field forms-fields))) fill))
  63
  64 ;; Record filters.
  65 ;;
  66 (defun arch-new-record-filter (the-record)
  67   "Form a new record with some defaults."
  68   (aset the-record arch-from (user-full-name))
  69   (aset the-record arch-date (current-time-string))
  70   the-record                            ; return it
  71 )
  72 (setq forms-new-record-filter 'arch-new-record-filter)
  73
  74 ;; The format list.
  75 (setq forms-format-list
  76      (list
  77        "====== Public Domain Software Archive ======\n\n"
  78        arch-shortname
  79        " - "                    arch-longname
  80        "\n\n"
  81        "Article: "              arch-newsgroup
  82        "/"                      arch-article
  83        " "
  84        '(arch-tocol 40)
  85        "Issue: "                arch-issue
  86        " "
  87        '(arch-rj 73 10)
  88        "Date: "                 arch-date
  89        "\n\n"
  90        "Submitted by: "         arch-from
  91        "\n"
  92        '(arch-tocol 79 ?-)
  93        "\n"
  94        "Keywords: "             arch-keywords
  95        "\n\n"
  96        "Parts: "                arch-parts
  97        "\n\n====== Remarks ======\n\n"
  98        arch-remarks
  99      ))
 100
 101 ;; That's all, folks!
 102
 103 ;;; forms-d2.el ends here