haskell-utils.el

;;; haskell-utils.el --- General utility functions used by haskell-mode modules

;; Copyright (C) 2013  Herbert Valerio Riedel

;; Author: Herbert Valerio Riedel <hvr@gnu.org>

;; This file is not part of GNU Emacs.

;; This file 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.

;; This file 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 this program.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; This module's purpose is to provide a place for helper functions
;; which are general enough to be usable by multiple modules and/or
;; to alleviate circular module dependency problems.
;;
;; When possible, functions in this module shall be accompanied by
;; ERT-based unit tests.
;;
;; See also `haskell-str.el' for string utility functions.
;;
;; All symbols in this module have a `haskell-utils-' prefix.

;;; Code:

;; NOTE: This module is supposed to be a leaf-module and shall not
;;       require/depend-on any other haskell-mode modules in order to
;;       stay at the bottom of the module dependency graph.


(defun haskell-utils-read-directory-name (prompt default)
  "Read directory name and normalize to true absolute path.
Refer to `read-directory-name' for the meaning of PROMPT and
DEFAULT."
  (let ((filename (file-truename
                   (read-directory-name prompt
                                        default
                                        default))))
    (concat (replace-regexp-in-string "/$" "" filename)
            "/")))


(provide 'haskell-utils)

;;; haskell-utils.el ends here