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* lib/Makefile.am: Adjust to file renamings and additions. * lib/mbcel.c, lib/mbcel.h: Split into two APIs, replacing with ... * lib/mcel.c, lib/mcel.h, lib/ucore.c, lib/ucore.h: ... these new files. * lib/mcel.h: Simplify by assuming ucore.h is included. Check that bytes have 8 bits. (MCEL_LEN_MAX, mcel_t, MCEL_INLINE, MCEL_ENCODING_ERROR_SHIFT) (mcel_scan, mcel_scant, mcel_scanz, mcel_casecmp): Rename from MBCEL_LEN_MAX, mbcel_t, MBCEL_INLINE, MBCEL_ENCODING_ERROR_SHIFT, mbcel_scan, mbcel_scanz, mbcel_scant, mbcel_casecmp. (mcel_t): New member c, replacing old members ch and err. All uses changed. (MBCEL_UCHAR_FITS, MBCEL_UCHAR_EASILY_FITS): Remove. All uses removed. No longer needed now 8-bit bytes are assumed. (MCEL_ENCODING_ERROR_SHIFT): Check that it matches UCORE_ERR_MIN. (mcel_isbasic): New function. Use it where appropriate. (mbcel_cmp, mbcel_casecmp): Remove; replaced by ucore_cmp, ucore_tocmp. All uses changed. * lib/mcel-casecmp.c: Rename from lib/mbcel-strcasecmp.c. Include mcel.h instead of mbcel.h. (mcel_casecmp): Rename from mbcel_strcasecmp. All uses changed. Assert that UCHAR_MAX <= INT_MAX, as POSIX requires, and simplify code accordingly. Use mcel rather than mbcel. * lib/ucore.h: Include verify.h. (ucore_t): New type. (UCORE_CHAR_MAX, UCORE_ERR_MIN, UCORE_ERR_MAX, UCORE_C32_SAFE): New constants. Check that information is not lost by encoding errors as integers; this is a weaker test than CHAR_BIT == 8. (ucore_iserr, ucore_is, ucore_to): New functions. (ucore_cmp, ucore_tocmp): New functions, replacing the old mbcel_cmp, mbcel_casecmp. All uses changed. * src/dir.c, src/io.c, src/side.c: Use mcel rather than mbcel. * src/io.c (same_ch_err): Remove. All uses replaced by ucore_cmp.
README for GNU DIFF This directory contains the GNU diff, diff3, sdiff, and cmp utilities. Their features are a superset of the Unix features and they are significantly faster. Please see the file COPYING for copying conditions. Please see the file doc/version.texi for version information. Please see the file doc/diffutils.texi (or doc/diffutils.info) for documentation that can be printed with TeX, or read with the 'info' program or with Emacs's 'M-x info'. Brief man pages are in man/*, but they are no substitute for the documentation. Please see the file ABOUT-NLS for notes about translations. Please see the file INSTALL for generic compilation and installation instructions. Briefly, you can run "./configure; make install". The command "./configure --help" lists the supported --enable and --with options. If you have a problem with internationalization, you might be able to work around it as described in ABOUT-NLS by invoking './configure --disable-nls'. Many of the problems arise from dynamic linking issues on non-GNU platforms (e.g. with the iconv library). Such problems tend to be shared by other GNU applications on these platforms, and can usually be fixed by carefully tweaking your non-GNU installation. If you have an older version of libiconv, please upgrade to the latest one; see <ftp://ftp.gnu.org/gnu/libiconv/>. If the problem seems isolated to diffutils, though, please report a bug. This program requires a Standard C compiler (C89 or later). If you have a nonstandard compiler, please install GCC first. If you make changes to the source code, you may need appropriate versions of GNU build tools to regenerate the intermediate files. The following versions were used to generate the intermediate files in this distribution: * Autoconf 2.59 <ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.59.tar.gz> * Automake 1.8.3 <ftp://ftp.gnu.org/gnu/automake/automake-1.8.3.tar.gz> * gettext 0.14.1 <ftp://ftp.gnu.org/gnu/gettext/gettext-0.14.1.tar.gz> * help2man 1.33 <ftp://ftp.gnu.org/gnu/help2man/help2man-1.33.1.tar.gz> * Texinfo 4.7 <ftp://ftp.gnu.org/gnu/texinfo/texinfo-4.7.tar.gz> For any copyright year range specified as YYYY-ZZZZ in this package note that the range specifies every single year in that closed interval. Please report bugs to <bug-diffutils@gnu.org>. ----- Copyright (C) 1992, 1998, 2001-2002, 2004, 2009-2013, 2015-2023 Free Software Foundation, Inc. This file is part of GNU Diffutils. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the "GNU Free Documentation License" file as part of this distribution.