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Diffstat (limited to 'vms/make-mms-derivative.el')
| -rw-r--r-- | vms/make-mms-derivative.el | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/vms/make-mms-derivative.el b/vms/make-mms-derivative.el deleted file mode 100644 index 5ef859f512d..00000000000 --- a/vms/make-mms-derivative.el +++ /dev/null @@ -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 <ttn@gnu.org> -;; 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 |