126 lines
4.0 KiB
EmacsLisp
126 lines
4.0 KiB
EmacsLisp
;;; fuel-base.el --- Basic FUEL support code
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;; Copyright (C) 2008 Jose Antonio Ortega Ruiz
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;; See http://factorcode.org/license.txt for BSD license.
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;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
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;; Keywords: languages, fuel, factor
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;;; Commentary:
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;; Basic definitions likely to be used by all FUEL modules.
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;;; Code:
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(defconst fuel-version "1.1")
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;;;###autoload
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(defsubst fuel-version ()
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"Echoes FUEL's version."
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(interactive)
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(message "FUEL %s" fuel-version))
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;;; Customization:
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;;;###autoload
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(defgroup fuel nil
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"Factor's Ultimate Emacs Library."
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:group 'languages)
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;;; Compatibility with Emacs 24.3
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(unless (fboundp 'setq-local)
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(defmacro setq-local (var val)
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(list 'set (list 'make-local-variable (list 'quote var)) val)))
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(unless (fboundp 'defvar-local)
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(defmacro defvar-local (var val &optional docstring)
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(declare (debug defvar) (doc-string 3))
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(list 'progn (list 'defvar var val docstring)
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(list 'make-variable-buffer-local (list 'quote var)))))
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(unless (fboundp 'alist-get)
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(defun alist-get (key alist)
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(cdr (assoc key alist))))
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;;; Utilities:
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(defun fuel-shorten-str (str len)
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(let ((sl (length str)))
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(if (<= sl len) str
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(let* ((sep " ... ")
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(sepl (length sep))
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(segl (/ (- len sepl) 2)))
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(format "%s%s%s" (substring str 0 segl)
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sep (substring str (- sl segl)))))))
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(defun fuel-shorten-region (begin end len)
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(fuel-shorten-str
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(mapconcat 'identity
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(split-string (buffer-substring begin end) nil t) " ") len))
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(defsubst fuel-region-to-string (begin &optional end)
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(let ((end (or end (point))))
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(if (< begin end)
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(mapconcat 'identity
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(split-string (buffer-substring-no-properties begin end)
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nil t) " ") "")))
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(defun fuel-respecting-message (format &rest format-args)
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"Display TEXT as a message, without hiding any minibuffer contents."
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(let ((text (format " [%s]" (apply #'format format format-args))))
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(if (minibuffer-window-active-p (minibuffer-window))
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(minibuffer-message text)
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(message "%s" text))))
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(defun fuel-mode--read-file (arg)
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(let* ((file (or (and arg (read-file-name "File: " nil (buffer-file-name) t))
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(buffer-file-name)))
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(file (expand-file-name file))
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(buffer (find-file-noselect file)))
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(when (and buffer
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(buffer-modified-p buffer)
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(y-or-n-p "Save file? "))
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(save-buffer buffer))
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(cons file buffer)))
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;; I think it is correct to put almost all punctuation characters in
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;; the word class because Factor words can be made up of almost
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;; anything. Otherwise you get incredibly annoying regexps.
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(defun fuel-syntax-table ()
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(let ((table (make-syntax-table prog-mode-syntax-table)))
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(modify-syntax-entry ?\" "\"" table)
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(modify-syntax-entry ?# "_" table)
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(modify-syntax-entry ?! "_" table)
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(modify-syntax-entry ?\n "> " table)
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(modify-syntax-entry ?$ "_" table)
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(modify-syntax-entry ?@ "_" table)
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(modify-syntax-entry ?? "_" table)
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(modify-syntax-entry ?_ "_" table)
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(modify-syntax-entry ?: "_" table)
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(modify-syntax-entry ?< "_" table)
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(modify-syntax-entry ?> "_" table)
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(modify-syntax-entry ?. "_" table)
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(modify-syntax-entry ?, "_" table)
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(modify-syntax-entry ?& "_" table)
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(modify-syntax-entry ?| "_" table)
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(modify-syntax-entry ?% "_" table)
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(modify-syntax-entry ?= "_" table)
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(modify-syntax-entry ?/ "_" table)
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(modify-syntax-entry ?+ "_" table)
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(modify-syntax-entry ?* "_" table)
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(modify-syntax-entry ?- "_" table)
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(modify-syntax-entry ?\; "_" table)
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(modify-syntax-entry ?\' "_" table)
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(modify-syntax-entry ?^ "_" table)
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(modify-syntax-entry ?~ "_" table)
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(modify-syntax-entry ?\( "()" table)
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(modify-syntax-entry ?\) ")(" table)
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(modify-syntax-entry ?\{ "(}" table)
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(modify-syntax-entry ?\} "){" table)
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(modify-syntax-entry ?\[ "(]" table)
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(modify-syntax-entry ?\] ")[" table)
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table))
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(provide 'fuel-base)
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;;; fuel-base.el ends here
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