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view src/README.global-renaming @ 5652:cc6f0266bc36
Avoid #'delq in core Lisp, for the sake of style, a very slightly smaller binary
lisp/ChangeLog addition:
2012-05-01 Aidan Kehoe <kehoea@parhasard.net>
Avoid #'delq in core code, for the sake of style and a (very
slightly) smaller binary.
* behavior.el (disable-behavior):
* behavior.el (compute-behavior-group-children):
* buff-menu.el (buffers-tab-items):
* byte-optimize.el (byte-optimize-delay-constants-math):
* byte-optimize.el (byte-optimize-logmumble):
* byte-optimize.el (byte-decompile-bytecode-1):
* byte-optimize.el (byte-optimize-lapcode):
* bytecomp.el:
* bytecomp.el (byte-compile-arglist-warn):
* bytecomp.el (byte-compile-warn-about-unresolved-functions):
* bytecomp.el (byte-compile-lambda):
* bytecomp.el (byte-compile-out-toplevel):
* bytecomp.el (byte-compile-insert):
* bytecomp.el (byte-compile-defalias-warn):
* cl-macs.el (cl-upcase-arg):
* cl-macs.el (cl-transform-lambda):
* cl-macs.el (cl-do-proclaim):
* cl-macs.el (defstruct):
* cl-macs.el (cl-make-type-test):
* cl-macs.el (define-compiler-macro):
* cl-macs.el (delete-duplicates):
* cus-edit.el (widget-face-value-delete):
* cus-edit.el (face-history):
* easymenu.el (easy-menu-remove):
* files.el (files-fetch-hook-value):
* files.el (file-expand-wildcards):
* font-lock.el (font-lock-update-removed-keyword-alist):
* font-lock.el (font-lock-remove-keywords):
* frame.el (frame-initialize):
* frame.el (frame-notice-user-settings):
* frame.el (set-frame-font):
* frame.el (delete-other-frames):
* frame.el (get-frame-for-buffer-noselect):
* gnuserv.el (gnuserv-kill-buffer-function):
* gnuserv.el (gnuserv-check-device):
* gnuserv.el (gnuserv-kill-client):
* gnuserv.el (gnuserv-buffer-done-1):
* gtk-font-menu.el (gtk-reset-device-font-menus):
* gutter-items.el (buffers-tab-items):
* gutter.el (set-gutter-element-visible-p):
* info.el (Info-find-file-node):
* info.el (Info-history-add):
* info.el (Info-build-annotation-completions):
* info.el (Info-index):
* info.el (Info-reannotate-node):
* itimer.el (delete-itimer):
* itimer.el (start-itimer):
* lib-complete.el (lib-complete:cache-completions):
* loadhist.el (unload-feature):
* menubar-items.el (build-buffers-menu-internal):
* menubar.el (delete-menu-item):
* menubar.el (relabel-menu-item):
* msw-font-menu.el (mswindows-reset-device-font-menus):
* mule/make-coding-system.el (fixed-width-generate-helper):
* next-error.el (next-error-find-buffer):
* obsolete.el:
* obsolete.el (find-non-ascii-charset-string):
* obsolete.el (find-non-ascii-charset-region):
* occur.el (multi-occur-by-filename-regexp):
* occur.el (occur-1):
* packages.el (packages-package-hierarchy-directory-names):
* packages.el (package-get-key-1):
* process.el (setenv):
* simple.el (undo):
* simple.el (handle-pre-motion-command-current-command-is-motion):
* sound.el (load-sound-file):
* wid-edit.el (widget-field-value-delete):
* wid-edit.el (widget-checklist-match-inline):
* wid-edit.el (widget-checklist-match-find):
* wid-edit.el (widget-editable-list-delete-at):
* wid-edit.el (widget-editable-list-entry-create):
* window.el (quit-window):
* x-font-menu.el (x-reset-device-font-menus-core):
1. Replace (delq nil (mapcar ....)) with analogous (mapcan ...)
forms; this is in non-dumped files, it was done previously in
dumped files.
2. Replace (delq FOO (copy-sequence BAR)) with (remove* FOO BAR),
where #'eq and #'eql are equivalent
3. Replace (delq FOO BAR) with (delete* FOO BAR), where FOO is not
a non-fixnum number. Saves a little space in the dumped file
(since the compiler macro adds :test #'eq to the delete* call if
it's not clear that FOO is not a non-fixnum number).
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Tue, 01 May 2012 16:17:42 +0100 (2012-05-01) |
parents | 2aa9cd456ae7 |
children |
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line source
README.global-renaming This file documents the generic scripts that have been used to implement the recent type renamings, e.g. the "great integral type renaming" and the "text/char type renaming". More information about these changes can be found in the Internals manual. A sample script to do such renaming is this (used in the great integral type renaming): ----------------------------------- cut ------------------------------------ files="*.[ch] s/*.h m/*.h config.h.in ../configure.in Makefile.in.in ../lib-src/*.[ch] ../lwlib/*.[ch]" gr Memory_Count Bytecount $files gr Lstream_Data_Count Bytecount $files gr Element_Count Elemcount $files gr Hash_Code Hashcode $files gr extcount bytecount $files gr bufpos charbpos $files gr bytind bytebpos $files gr memind membpos $files gr bufbyte intbyte $files gr Extcount Bytecount $files gr Bufpos Charbpos $files gr Bytind Bytebpos $files gr Memind Membpos $files gr Bufbyte Intbyte $files gr EXTCOUNT BYTECOUNT $files gr BUFPOS CHARBPOS $files gr BYTIND BYTEBPOS $files gr MEMIND MEMBPOS $files gr BUFBYTE INTBYTE $files gr MEMORY_COUNT BYTECOUNT $files gr LSTREAM_DATA_COUNT BYTECOUNT $files gr ELEMENT_COUNT ELEMCOUNT $files gr HASH_CODE HASHCODE $files ----------------------------------- cut ------------------------------------ `fixtypes.sh' is a Bourne-shell script; it uses 'gr': ----------------------------------- cut ------------------------------------ #!/bin/sh # Usage is like this: # gr FROM TO FILES ... # globally replace FROM with TO in FILES. FROM and TO are regular expressions. # backup files are stored in the `backup' directory. from="$1" to="$2" shift 2 echo ${1+"$@"} | xargs global-replace "s/$from/$to/g" ----------------------------------- cut ------------------------------------ `gr' in turn uses a Perl script to do its real work, `global-replace', which follows: ----------------------------------- cut ------------------------------------ : #-*- Perl -*- ### global-replace --- modify the contents of a file by a Perl expression ## Copyright (C) 1999 Martin Buchholz. ## Copyright (C) 2001, 2002 Ben Wing. ## Authors: Martin Buchholz <martin@xemacs.org>, Ben Wing <ben@xemacs.org> ## Maintainer: Ben Wing <ben@xemacs.org> ## Current Version: 1.2, March 12, 2002 # This program 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 program 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/>. eval 'exec perl -w -S $0 ${1+"$@"}' if 0; use strict; use FileHandle; use Carp; use Getopt::Long; use File::Basename; (my $myName = $0) =~ s@.*/@@; my $usage=" Usage: $myName [--help] [--backup-dir=DIR] [--line-mode] [--hunk-mode] PERLEXPR FILE ... Globally modify a file, either line by line or in one big hunk. Typical usage is like this: [with GNU print, GNU xargs: guaranteed to handle spaces, quotes, etc. in file names] find . -name '*.[ch]' -print0 | xargs -0 $0 's/\bCONST\b/const/g'\n [with non-GNU print, xargs] find . -name '*.[ch]' -print | xargs $0 's/\bCONST\b/const/g'\n The file is read in, either line by line (with --line-mode specified) or in one big hunk (with --hunk-mode specified; it's the default), and the Perl expression is then evalled with \$_ set to the line or hunk of text, including the terminating newline if there is one. It should destructively modify the value there, storing the changed result in \$_. Files in which any modifications are made are backed up to the directory specified using --backup-dir, or to `backup.orig' by default. To disable this, use --backup-dir= with no argument. Hunk mode is the default because it is MUCH MUCH faster than line-by-line. Use line-by-line only when it matters, e.g. you want to do a replacement only once per line (the default without the `g' argument). Conversely, when using hunk mode, *ALWAYS* use `g'; otherwise, you will only make one replacement in the entire file! "; my %options = (); $Getopt::Long::ignorecase = 0; &GetOptions ( \%options, 'help', 'backup-dir=s', 'line-mode', 'hunk-mode', ); die $usage if $options{"help"} or @ARGV <= 1; my $code = shift; die $usage if grep (-d || ! -w, @ARGV); sub SafeOpen { open ((my $fh = new FileHandle), $_[0]); confess "Can't open $_[0]: $!" if ! defined $fh; return $fh; } sub SafeClose { close $_[0] or confess "Can't close $_[0]: $!"; } sub FileContents { my $fh = SafeOpen ("< $_[0]"); my $olddollarslash = $/; local $/ = undef; my $contents = <$fh>; $/ = $olddollarslash; return $contents; } sub WriteStringToFile { my $fh = SafeOpen ("> $_[0]"); binmode $fh; print $fh $_[1] or confess "$_[0]: $!\n"; SafeClose $fh; } foreach my $file (@ARGV) { my $changed_p = 0; my $new_contents = ""; if ($options{"line-mode"}) { my $fh = SafeOpen $file; while (<$fh>) { my $save_line = $_; eval $code; $changed_p = 1 if $save_line ne $_; $new_contents .= $_; } } else { my $orig_contents = $_ = FileContents $file; eval $code; if ($_ ne $orig_contents) { $changed_p = 1; $new_contents = $_; } } if ($changed_p) { my $backdir = $options{"backup-dir"}; $backdir = "backup.orig" if !defined ($backdir); if ($backdir) { my ($name, $path, $suffix) = fileparse ($file, ""); my $backfulldir = $path . $backdir; my $backfile = "$backfulldir/$name"; mkdir $backfulldir, 0755 unless -d $backfulldir; print "modifying $file (original saved in $backfile)\n"; rename $file, $backfile; } WriteStringToFile ($file, $new_contents); } } ----------------------------------- cut ------------------------------------