code.delx.au - gnu-emacs/blob - lisp/forms-d2.el

   1 ;;; forms-d2.el --- demo forms-mode -*- no-byte-compile: t -*-
   2
   3 ;; Author: Johan Vromans <jvromans@squirrel.nl>
   4 ;; Created: 1989
   5
   6 ;; This file is part of GNU Emacs.
   7
   8 ;;; Commentary:
   9
  10 ;; This sample forms exploit most of the features of forms mode.
  11
  12 ;;; Code:
  13
  14 ;; Set the name of the data file.
  15 (setq forms-file "forms-d2.dat")
  16
  17 ;; Use 'forms-enumerate' to set field names and number thereof.
  18 (setq forms-number-of-fields
  19       (forms-enumerate
  20        '(arch-newsgroup                 ; 1
  21          arch-volume                    ; 2
  22          arch-issue                     ; and ...
  23          arch-article                   ; ... so
  24          arch-shortname                 ; ... ... on
  25          arch-parts
  26          arch-from
  27          arch-longname
  28          arch-keywords
  29          arch-date
  30          arch-remarks)))
  31
  32 ;; The following functions are used by this form for layout purposes.
  33 ;;
  34 (defun arch-tocol (target &optional fill)
  35   "Produces a string to skip to column TARGET.  Prepends newline if needed.
  36 The optional FILL should be a character, used to fill to the column."
  37   (if (null fill)
  38       (setq fill ?\s))
  39   (if (< target (current-column))
  40       (concat "\n" (make-string target fill))
  41     (make-string (- target (current-column)) fill)))
  42 ;;
  43 (defun arch-rj (target field &optional fill)
  44   "Produces a string to skip to column TARGET minus the width of field FIELD.
  45 Prepends newline if needed.  The optional FILL should be a character,
  46 used to fill to the column."
  47   (arch-tocol (- target (length (nth field forms-fields))) fill))
  48
  49 ;; Record filters.
  50 ;;
  51 (defun arch-new-record-filter (the-record)
  52   "Form a new record with some defaults."
  53   (aset the-record arch-from (user-full-name))
  54   (aset the-record arch-date (current-time-string))
  55   the-record                            ; return it
  56 )
  57 (setq forms-new-record-filter 'arch-new-record-filter)
  58
  59 ;; The format list.
  60 (setq forms-format-list
  61      (list
  62        "====== Public Domain Software Archive ======\n\n"
  63        arch-shortname
  64        " - "                    arch-longname
  65        "\n\n"
  66        "Article: "              arch-newsgroup
  67        "/"                      arch-article
  68        " "
  69        '(arch-tocol 40)
  70        "Issue: "                arch-issue
  71        " "
  72        '(arch-rj 73 10)
  73        "Date: "                 arch-date
  74        "\n\n"
  75        "Submitted by: "         arch-from
  76        "\n"
  77        '(arch-tocol 79 ?-)
  78        "\n"
  79        "Keywords: "             arch-keywords
  80        "\n\n"
  81        "Parts: "                arch-parts
  82        "\n\n====== Remarks ======\n\n"
  83        arch-remarks
  84      ))
  85
  86 ;; That's all, folks!
  87
  88 ;;; arch-tag: 8e5d5dac-7abf-4722-ab5e-03eb749beaca
  89 ;;; forms-d2.el ends here