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Optionally treat integers as signed numbers with %o and %x format specifiers, instead of treating them as a machine-dependent two’s complement representation. This option is more machine-independent, allows formats like "#x%x" to be useful for reading later, and is better-insulated for future changes involving bignums. Setting the new variable ‘binary-as-unsigned’ to nil enables the new behavior (Bug#32252). This is a simplified version of the change proposed in: https://lists.gnu.org/r/emacs-devel/2018-07/msg00763.html I simplified that proposal by omitting bitwidth modifiers, as I could not find an any example uses in the Emacs source code that needed them and doing them correctly would have been quite a bit more work for apparently little benefit. * doc/lispref/strings.texi (Formatting Strings): Document that %x and %o format negative integers in a platform-dependent way. Also, document how to format numbers so that the same values can be read back in. * etc/NEWS: Document the change. * src/editfns.c (styled_format): Treat integers as signed numbers even with %o and %x, if binary-as-unsigned is nil. Support the + and space flags with %o and %x, since they’re about signs. (syms_of_editfns): New variable binary-as-unsigned. * test/src/editfns-tests.el (read-large-integer): Test that maximal integers can be read after printing with all integer formats, if binary-as-unsigned is nil. |
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| abbrevs.texi | ||
| anti.texi | ||
| back.texi | ||
| backups.texi | ||
| book-spine.texi | ||
| buffers.texi | ||
| ChangeLog.1 | ||
| commands.texi | ||
| compile.texi | ||
| control.texi | ||
| customize.texi | ||
| debugging.texi | ||
| display.texi | ||
| doclicense.texi | ||
| edebug.texi | ||
| elisp.texi | ||
| errors.texi | ||
| eval.texi | ||
| files.texi | ||
| frames.texi | ||
| functions.texi | ||
| gpl.texi | ||
| hash.texi | ||
| help.texi | ||
| hooks.texi | ||
| index.texi | ||
| internals.texi | ||
| intro.texi | ||
| keymaps.texi | ||
| lay-flat.texi | ||
| lists.texi | ||
| loading.texi | ||
| macros.texi | ||
| Makefile.in | ||
| maps.texi | ||
| markers.texi | ||
| minibuf.texi | ||
| modes.texi | ||
| nonascii.texi | ||
| numbers.texi | ||
| objects.texi | ||
| os.texi | ||
| package.texi | ||
| positions.texi | ||
| processes.texi | ||
| README | ||
| records.texi | ||
| searching.texi | ||
| sequences.texi | ||
| spellfile | ||
| streams.texi | ||
| strings.texi | ||
| symbols.texi | ||
| syntax.texi | ||
| text.texi | ||
| threads.texi | ||
| tips.texi | ||
| two-volume-cross-refs.txt | ||
| two-volume.make | ||
| variables.texi | ||
| windows.texi | ||
Copyright (C) 2001-2018 Free Software Foundation, Inc. -*- outline -*-
See the end of the file for license conditions.
README for the Emacs Lisp Reference Manual.
* This directory contains the texinfo source files for the Emacs Lisp
Reference Manual.
* Report bugs in the Lisp Manual (or in Emacs) using M-x report-emacs-bug.
To ask questions, use the help-gnu-emacs mailing list.
* The Emacs Lisp Reference Manual is quite large. It totals around
1100 pages in smallbook format; the info files total around 3.0 megabytes.
* You can format this manual for Info, for printing hardcopy using TeX,
or for HTML.
* You can buy nicely printed copies from the Free Software Foundation.
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(At time of writing, this manual is out of print.)
* The master file for formatting this manual for Tex is called 'elisp.texi'.
It contains @include commands to include all the chapters that make up
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* This distribution contains a Makefile that you can use with GNU Make.
** To make an Info file, you need to install Texinfo, then run 'make info'.
** Use 'make elisp.pdf' or 'make elisp.html' to create PDF or HTML versions.
This file is part of GNU Emacs.
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