[Emacs-diffs] Changes to vms/make-mms-derivative.el

[Dan Nicolaescu]

CVSROOT:        /cvsroot/emacs
Module name:    emacs
Changes by:     Dan Nicolaescu <dann>   08/07/31 05:33:56

Index: vms/make-mms-derivative.el
===================================================================
RCS file: vms/make-mms-derivative.el
diff -N vms/make-mms-derivative.el
--- vms/make-mms-derivative.el  7 May 2008 03:12:07 -0000       1.15
+++ /dev/null   1 Jan 1970 00:00:00 -0000
@@ -1,139 +0,0 @@
-;;; make-mms-derivative.el --- framework to do horrible things for VMS support
-
-;; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008
-;;   Free Software Foundation, Inc.
-
-;; Author: Thien-Thi Nguyen <address@hidden>
-;; Keywords: maint build vms mms makefile levitte autoconf war-is-a-lose
-
-;; 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Under VMS the standard make-like program is called MMS, which looks
-;; for an input file in the default directory named DESCRIP.MMS and runs
-;; the DCL command rules therein.  As of 2005, the build process
-;; requires a hand translation of the Makefile.in and Emacs-specific
-;; methodology to DCL and TPU commands, so to alleviate this pain, we
-;; provide `make-mms-derivative', which given a source FILENAME, inserts
-;; the file contents in a new buffer and loads FILENAME-2mms.  The lisp
-;; code in the -2mms file can (do whatever -- it's emacs -- and), as
-;; long as it arranges to write out the modified buffer after loading by
-;; specifying, on a line of its own, the directive:
-;;
-;;  :output RELATIVE-OUTPUT
-;;
-;; where RELATIVE-OUTPUT is a filename (a string) relative to FILENAME's
-;; directory, typically something simple like "descrip.mms_in_in".  Only
-;; the first :output directive is recognized.
-;;
-;; The only other special directive at this time has the form:
-;;
-;;  :gigo NAME
-;;  ;;blah blah blah
-;;  ;;(more text here)
-;;
-;; NAME is anything distinguishable w/ `eq' (number, symbol or keyword).
-;; This associates NAME with the block of text starting immediately below
-;; the :gigo directive and ending at the first line that does not begin
-;; with two semicolons (which are stripped from each line in the block).
-;; To insert this block of text, pass NAME to `make-mms-derivative-gigo'.
-;;
-;; Directives are scanned before normal evaluation, so their placement
-;; in the file is not important.  During loading, plain strings are
-;; displayed in the echo area, prefixed with the current line number.
-;;
-;; Over the long run, the convenience functions provided (see source)
-;; will be augmented by factoring maximally the -2mms files, squeezing
-;; as much algorithm out of those nasty heuristics as possible.  What
-;; makes them nasty is not that they rely on the conventions of the
-;; Emacs makefiles; that's no big deal.  What makes them nasty is that
-;; they rely on the conventions of separately maintained tools (namely
-;; Autoconf for VMS and GNU Autoconf), and the separation of conventions
-;; is how people drift apart, dragging their software behind
-;; mercilessly.
-;;
-;; In general, codified thought w/o self-synchronization is doomed.
-;; That a generation would eat its young (most discriminatingly, even)
-;; is no reason GNU cannot build around such woe.
-
-;;; Code:
-
-(defvar make-mms-derivative-data nil
-  "Plist of data specific to `make-mms-derivative'.")
-
-(defun make-mms-derivative-data (key &optional newval)
-  (if newval (setq make-mms-derivative-data
-                  (plist-put make-mms-derivative-data key newval))
-    (plist-get make-mms-derivative-data key)))
-
-(defun make-mms-derivative-gigo (name)
-  "Insert the text associated with :gigo NAME."
-  (insert (cdr (assq name (make-mms-derivative-data :gigo)))))
-
-(defun make-mms-derivative (filename)
-  "Take FILENAME contents, load FILENAME-2mms, and write out the result.
-The output file is specified by the :output directive in FILENAME-2mms.
-See commentary of make-mms-derivative.el for full documentation."
-  (interactive "fSource File: ")
-  (let* ((todo (let ((fn (concat filename "-2mms")))
-                (unless (file-exists-p fn)
-                  (error "Could not find %s" fn))
-                (set-buffer (get-buffer-create " *make-mms-derivative todo*"))
-                (insert-file-contents fn)
-                (current-buffer)))
-        (deriv (get-buffer-create (format "*mms-derivative: %s"
-                                          (file-relative-name filename))))
-        output gigo form)
-    (set-buffer todo)
-    (re-search-forward "^:output")
-    (setq output (expand-file-name (read (current-buffer))
-                                  (file-name-directory filename)))
-    (goto-char (point-min))
-    (while (re-search-forward "^:gigo" (point-max) t)
-      (let ((name (read (current-buffer)))
-           (p (progn (forward-line 1) (point))))
-       (while (looking-at ";;")
-         (delete-char 2)
-         (forward-line 1))
-       (setq gigo (cons (cons name (buffer-substring p (point))) gigo))
-       (delete-region p (point))))
-    (message "Munging...")
-    (switch-to-buffer deriv)
-    (erase-buffer)
-    (insert-file-contents filename)
-    (set (make-local-variable 'make-mms-derivative-data)
-        (list :gigo gigo))
-    (set-buffer todo)
-    (goto-char (point-min))
-    (while (condition-case nil
-              (setq form (read (current-buffer)))
-            (end-of-file nil))
-      (if (stringp form)
-         (message "%d: %s" (count-lines (point-min) (point)) form)
-       (save-excursion
-         (set-buffer deriv)
-         (eval form))))
-    (set-buffer deriv)
-    (message "Munging...done")
-    (write-file output)
-    (kill-buffer todo)
-    (kill-buffer deriv)))
-
-(provide 'make-mms-derivative)
-
-;; arch-tag: a5b08625-3952-4053-be16-296220e27bb0
-;;; make-mms-derivative.el ends here