[Libguestfs] [libnbd PATCH v5 2/4] common/include: Copy ascii-ctype functions from nbdkit

From: "Richard W.M. Jones" <rjones(a)redhat.com&gt; [Laszlo's note: "ascii-ctype.h" and "test-ascii-ctype.c" match those of nbdkit at commit 45b72f5bd8fc. Originally posted by Rich at <https://listman.redhat.com/archives/libguestfs/2023-January/030559.html>.] Message-Id: <20230130225521.1771496-3-rjones(a)redhat.com&gt; Signed-off-by: Laszlo Ersek <lersek(a)redhat.com&gt; Reviewed-by: Richard W.M. Jones <rjones(a)redhat.com&gt; --- Notes: v5: - no change v4: - pick up Rich's R-b - refresh patch and commit message against nbdkit 45b72f5bd8fc common/include/ascii-ctype.h | 75 +++++++++++++++++ common/include/Makefile.am | 6 ++ common/include/test-ascii-ctype.c | 88 ++++++++++++++++++++ .gitignore | 1 + 4 files changed, 170 insertions(+) diff --git a/common/include/ascii-ctype.h b/common/include/ascii-ctype.h new file mode 100644 index 000000000000..191a0f27e19d --- /dev/null +++ b/common/include/ascii-ctype.h @@ -0,0 +1,75 @@ +/* nbdkit + * Copyright Red Hat + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Normal ctype functions are affected by the current locale. For + * example isupper() might recognize Ä in some but not all locales. + * These functions match only 7 bit ASCII characters. + */ + +#ifndef NBDKIT_ASCII_CTYPE_H +#define NBDKIT_ASCII_CTYPE_H + +#define ascii_isalnum(c) (ascii_isalpha (c) || ascii_isdigit (c)) + +#define ascii_isalpha(c) \ + (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z')) + +#define ascii_isdigit(c) \ + ((c) >= '0' && (c) <= '9') + +#define ascii_isspace(c) \ + ((c) == '\t' || (c) == '\n' || (c) == '\f' || (c) == '\r' || (c) == ' ') + +#define ascii_isupper(c) \ + ((c) >= 'A' && (c) <= 'Z') + +#define ascii_islower(c) \ + ((c) >= 'a' && (c) <= 'z') + +/* See also hexdigit.h */ +#define ascii_isxdigit(c) \ + ((c) == '0' || (c) == '1' || (c) == '2' || (c) == '3' || (c) == '4' || \ + (c) == '5' || (c) == '6' || (c) == '7' || (c) == '8' || (c) == '9' || \ + (c) == 'a' || (c) == 'b' || (c) == 'c' || \ + (c) == 'd' || (c) == 'e' || (c) == 'f' || \ + (c) == 'A' || (c) == 'B' || (c) == 'C' || \ + (c) == 'D' || (c) == 'E' || (c) == 'F') + +#define ascii_tolower(c) \ + (ascii_isupper ((c)) ? (c) + 32 : (c)) + +#define ascii_toupper(c) \ + (ascii_islower ((c)) ? (c) - 32 : (c)) + +#define ascii_isprint(c) ((c) >= 32 && (c) <= 126) + +#endif /* NBDKIT_ASCII_CTYPE_H */ diff --git a/common/include/Makefile.am b/common/include/Makefile.am index 8c99f76b8e73..1acc9fa41311 100644 --- a/common/include/Makefile.am +++ b/common/include/Makefile.am @@ -20,6 +20,7 @@ include $(top_srcdir)/subdir-rules.mk EXTRA_DIST = \ ansi-colours.h \ array-size.h \ + ascii-ctype.h \ byte-swapping.h \ checked-overflow.h \ compiler-macros.h \ @@ -36,6 +37,7 @@ EXTRA_DIST = \ TESTS = \ test-array-size \ + test-ascii-ctype \ test-byte-swapping \ test-checked-overflow \ test-isaligned \ @@ -49,6 +51,10 @@ test_array_size_SOURCES = test-array-size.c array-size.h test_array_size_CPPFLAGS = -I$(srcdir) test_array_size_CFLAGS = $(WARNINGS_CFLAGS) +test_ascii_ctype_SOURCES = test-ascii-ctype.c ascii-ctype.h +test_ascii_ctype_CPPFLAGS = -I$(srcdir) +test_ascii_ctype_CFLAGS = $(WARNINGS_CFLAGS) + test_byte_swapping_SOURCES = test-byte-swapping.c byte-swapping.h test_byte_swapping_CPPFLAGS = -I$(srcdir) test_byte_swapping_CFLAGS = $(WARNINGS_CFLAGS) diff --git a/common/include/test-ascii-ctype.c b/common/include/test-ascii-ctype.c new file mode 100644 index 000000000000..aefe1cc63640 --- /dev/null +++ b/common/include/test-ascii-ctype.c @@ -0,0 +1,88 @@ +/* nbdkit + * Copyright Red Hat + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of Red Hat nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#undef NDEBUG /* Keep test strong even for nbdkit built without assertions */ +#include <assert.h> + +#include "ascii-ctype.h" + +int +main (void) +{ + assert (ascii_isspace (' ')); + assert (ascii_isspace ('\t')); + assert (ascii_isspace ('\n')); + assert (! ascii_isspace ('a')); + + assert (ascii_isalpha ('a')); + assert (ascii_isalpha ('Z')); + assert (ascii_isalpha ('z')); + assert (! ascii_isalpha (' ')); + assert (! ascii_isalpha ('0')); + { const char *s = "Ä"; assert (! ascii_isalpha (s[0])); } + { const char *s = "®"; assert (! ascii_isalpha (s[0])); } + + assert (ascii_isdigit ('0')); + assert (ascii_isdigit ('9')); + { const char *s = "Ø"; assert (! ascii_isdigit (s[0])); } /* U+00D8 */ + { const char *s = "９"; assert (! ascii_isdigit (s[0])); } /* U+FF19 */ + + assert (ascii_islower ('a')); + assert (ascii_islower ('z')); + assert (! ascii_islower ('Z')); + { const char *s = "Ä"; assert (! ascii_islower (s[0])); } + + assert (ascii_isupper ('A')); + assert (ascii_isupper ('Z')); + assert (! ascii_isupper ('z')); + { const char *s = "Ä"; assert (! ascii_isupper (s[0])); } + + assert (ascii_tolower ('A') == 'a'); + assert (ascii_tolower ('Z') == 'z'); + assert (ascii_tolower ('a') == 'a'); + assert (ascii_tolower ('z') == 'z'); + assert (ascii_tolower ('0') == '0'); + { const char *s = "Ä"; assert (ascii_tolower (s[0]) == s[0]); } + + assert (ascii_toupper ('a') == 'A'); + assert (ascii_toupper ('z') == 'Z'); + assert (ascii_toupper ('A') == 'A'); + assert (ascii_toupper ('Z') == 'Z'); + assert (ascii_toupper ('0') == '0'); + { const char *s = "à"; assert (ascii_toupper (s[0]) == s[0]); } + + exit (EXIT_SUCCESS); +} diff --git a/.gitignore b/.gitignore index 9df5d9f9db4c..df4b6ca249c6 100644 --- a/.gitignore +++ b/.gitignore @@ -34,6 +34,7 @@ Makefile.in /bash-completion/nbdinfo /bash-completion/nbdublk /common/include/test-array-size +/common/include/test-ascii-ctype /common/include/test-byte-swapping /common/include/test-checked-overflow /common/include/test-isaligned