annotate modules/zlib/zlib.c @ 5562:855b667dea13

Drop cl-macro-environment in favour of byte-compile-macro-environment. lisp/ChangeLog addition: 2011-09-04 Aidan Kehoe <kehoea@parhasard.net> * bytecomp-runtime.el: * bytecomp-runtime.el (byte-compile-macro-environment): Moved from bytecomp.el. * bytecomp.el: * bytecomp.el (byte-compile-initial-macro-environment): Add implementations for #'load-time-value, #'labels here, now cl-macs respects byte-compile-macro-environment. * bytecomp.el (byte-compile-function-environment): * bytecomp.el (byte-compile-macro-environment): Removed. * bytecomp.el (symbol-value): * bytecomp.el (byte-compile-symbol-value): Removed. * cl-extra.el (cl-macroexpand-all): * cl-macs.el: * cl-macs.el (bind-block): * cl-macs.el (cl-macro-environment): Removed. * cl-macs.el (cl-transform-lambda): * cl-macs.el (load-time-value): * cl-macs.el (block): * cl-macs.el (flet): * cl-macs.el (labels): * cl-macs.el (macrolet): * cl-macs.el (symbol-macrolet): * cl-macs.el (lexical-let): * cl-macs.el (apply): * cl-macs.el (nthcdr): * cl-macs.el (getf): * cl-macs.el (substring): * cl-macs.el (values): * cl-macs.el (get-setf-method): * cl-macs.el (cl-setf-do-modify): * cl.el: * cl.el (cl-macro-environment): Removed. * cl.el (cl-macroexpand): * obsolete.el (cl-macro-environment): Moved here. Drop cl-macro-environment, in favour of byte-compile-macro-environment; make the latter available in bytecomp-runtime.el. This makes byte-compile-macro-environment far less useless, since previously code that used cl-macs would ignore it when calling #'cl-macroexpand-all. Add byte-compiler-specific implementations for #'load-time-value, #'labels. The latter is very nice indeed; it avoids the run-time consing of the current implementation, is fully lexical and avoids the run-time shadowing of symbol function slots that flet uses. It would now be reasonable to move most core uses of flet to use labels instead. Non-core code can't rely on print-circle for mutually recursive functions, though, so it's less of an evident win.
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 04 Sep 2011 20:37:55 +0100
parents 308d34e9f07d
children
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1 /* zlib interface for XEmacs.
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2 Copyright (C) 1998 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software: you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation, either version 3 of the License, or (at your
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9 option) any later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */
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18
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19 /* Synched up with: Not in FSF. */
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20
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21 /* Author: William Perry <wmperry@aventail.com> */
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22
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23 #include <emodules.h>
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24
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25 DEFUN ("compress", Fcompress, 1, 6, 0, /*
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26 Return the compressed version of an object.
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27 OBJECT is either a string or a buffer.
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28 Optional argument LEVEL specifies how much to compress - valid range is 0 - 9.
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29 Optional arguments START and END denote buffer positions for compressing
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30 a portion of OBJECT. The optional CODING argument specifies the coding
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31 system the text is to be represented in while computing the digest. This only
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32 has meaning with MULE, and defaults to the current format of the data.
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33 If ERROR-ME-NOT is nil, report an error if the coding system can't be
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34 determined. Else assume binary coding if all else fails.
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35 */
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36 (object, level, start, end, coding, error_me_not))
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37 {
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38 return(Qnil);
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39 }
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40
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41 DEFUN ("decompress", Fdecompress, 1, 5, 0, /*
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42 Uncompress an object.
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43 OBJECT is either a string or a buffer.
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44 Optional arguments START and END denote buffer positions for decompressing
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45 a portion of OBJECT. The optional CODING argument specifies the coding
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46 system the text is to be represented in while computing the digest. This only
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47 has meaning with MULE, and defaults to the current format of the data.
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48 If ERROR-ME-NOT is nil, report an error if the coding system can't be
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49 determined. Else assume binary coding if all else fails.
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50 */
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51 (object, start, end, coding, error_me_not))
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52 {
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53 return(Qnil);
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54 }
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55
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56 void
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57 syms_of_zlib (void)
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58 {
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59 DEFSUBR(Fcompress);
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60 DEFSUBR(Fdecompress);
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61 }
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63 void
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64 vars_of_zlib (void)
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65 {
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66 Fprovide (intern ("zlib"));
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67 }