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1 ;;; hash-table.el --- hash-table utility functions
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2
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3 ;; Copyright (C) 2000 Ben Wing.
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4
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5 ;; Author: Ben Wing
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6 ;; Maintainer: XEmacs Development Team
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7 ;; Keywords: internal, dumped
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software; you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with XEmacs; see the file COPYING. If not, write to the
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23 ;; Free Software Foundation, 59 Temple Place - Suite 330,
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24 ;; Boston, MA 02111-1307, USA.
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25
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26 ;;; Synched up with: Not in FSF.
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27
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28 ;;; Authorship:
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29
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30 ;; Created July 2000 by Ben Wing.
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31
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32 ;;; Commentary:
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33
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34 ;; This file is dumped with XEmacs.
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35
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36 ;;; Code:
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37
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38 (defun hash-table-key-list (hash-table)
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39 "Return a list of all keys in HASH-TABLE."
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40 (let (lis)
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41 (maphash #'(lambda (key val)
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42 (push key lis))
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43 hash-table)
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44 (nreverse lis)))
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45
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46 (defun hash-table-value-list (hash-table)
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47 "Return a list of all values in HASH-TABLE."
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48 (let (lis)
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49 (maphash #'(lambda (key val)
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50 (push val lis))
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51 hash-table)
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52 (nreverse lis)))
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53
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54 (defun hash-table-key-value-alist (hash-table)
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55 "Return an alist of (KEY . VALUE) for all keys and values in HASH-TABLE."
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56 (let (lis)
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57 (maphash #'(lambda (key val)
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58 (push (cons key val) lis))
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59 hash-table)
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60 (nreverse lis)))
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61
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62 (defun hash-table-key-value-plist (hash-table)
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63 "Return a plist for all keys and values in HASH-TABLE.
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64 A plist is a simple list containing alternating keys and values."
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65 (let (lis)
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66 (maphash #'(lambda (key val)
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67 (push key lis)
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68 (push val lis))
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69 hash-table)
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70 (nreverse lis)))
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