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authorUlrich Drepper <drepper@redhat.com>1997-11-06 00:02:46 +0000
committerUlrich Drepper <drepper@redhat.com>1997-11-06 00:02:46 +0000
commit86187531d302de284b67ac162cf76c60c86bd7da (patch)
tree456f8b37f8e8fa67c16ee0cf6de7b591d9d3d913 /posix/regex.c
parent1618c590382ef16b1942bf39a42aa683a050ff57 (diff)
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1997-11-06 00:06 Ulrich Drepper <drepper@cygnus.com> * argp/argp-help.c: Optimize a bit by using mempcpy. * elf/dl-load.c: Likewise. * elf/dl-lookup.c: Likewise. * inet/rcmd.c: Likewise. * io/ftw.c: Likewise. * libio/fileops.c: Likewise. * libio/genops.c: Likewise. * libio/obprintf.c: Likewise. * nss/nsswitch.c: Likewise. * posix/execvp.c: Likewise. * posix/getopt.c: Likewise. * posix/glob.c: Likewise. * posix/wordexp.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdlib/canonicalize.c: Likewise. * stdlib/msort.c: Likewise. * string/argz-replace.c: Likewise. * sysdeps/generic/putenv.c: Likewise. * sysdeps/generic/setenv.c: Likewise. * sysdeps/posix/getcwd.c: Likewise. * sysdeps/posix/ttyname.c: Likewise. * sysdeps/posix/writev.c: Likewise. * time/strftime.c: Likewise. * time/tzfile.c: Likewise. * login/utmp_daemon.c: Use memcpy instead of strcpy where possible. * sunrpc/svcauth_des.c: Likewise. * sysdeps/unix/sysv/linux/gethostname.c: Likewise. * misc/tsearch.c: Use memcpy return value if possible. * posix/regex.c: Likewise. * sysdeps/unix/readdir_r.c: Likewise. * wcsmbc/wcsdup.c: Likewise. * nss/digits_dots.c: Little optimization. * inet/ruserpass.c (ruserpass): Optimize by using stpcpy. (struct toktab): Make tokstr field a const char *. * elf/dl-profile.c: Fix typo. * inet/ether_ntoh.c: Don't use relative #include path. * inet/gethstbynm.c: Likewise. * resolv/inet_pton.c: Likewise. * shadow/sgetspent_r.c: Likewise. * libio/oldfileops.c (_IO_old_file_jumps): Use correct sync and write callbacks. Patch by NIIBE Yutaka <gniibe@mri.co.jp>. * posix/confstr.c: Correct string for _CS_LFS_CFLAGS. Handle _CS_XBS5_* constants. * posix/unistd.h: Add comment describing _XBS5_* constants. * sysdeps/generic/bits/confname.h: Add _CS_XBS5_* constants. * posix/regex.c: Indent preprocessor code. * posix/wordexp.c: Using _itoa_word instead of sprintf. * stdlib/canonicalize.c: Avoid unnecessary copying. Handle NULL and "" arguments correctly according to SUS. * stdlib/test-canon.c: Test "" and NULL argument handling. * sysdeps/posix/writev.c: Correct condition to leave the loop. 1997-11-05 18:13 Ulrich Drepper <drepper@cygnus.com> * nss/getXXbyYY.c: Set buffer to NULL if realloc fails so that possible next call starts with malloc again. Proposed by Joe Keane <jgk@jgk.org>. 1997-11-04 23:57 Ulrich Drepper <drepper@cygnus.com> * configure.in: Correct gcc -pipe test. Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>. * posix/glob.c: Cleanups. Patch by H.J. Lu <hjl@lucon.org>. 1997-11-04 Andreas Jaeger <aj@arthur.rhein-neckar.de> * manual/creature.texi (Feature Test Macros): Add _POSIX_C_SOURCE definition.
Diffstat (limited to 'posix/regex.c')
-rw-r--r--posix/regex.c345
1 files changed, 169 insertions, 176 deletions
diff --git a/posix/regex.c b/posix/regex.c
index 4f125be44b..b80ad1b815 100644
--- a/posix/regex.c
+++ b/posix/regex.c
@@ -2,12 +2,8 @@
version 0.12.
(Implements POSIX draft P1003.2/D11.2, except for some of the
internationalization features.)
-
Copyright (C) 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
- This file is part of the GNU C Library. Its master source is NOT part of
- the C library, however. The master source lives in /gd/gnu/lib.
-
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
@@ -24,7 +20,7 @@
Boston, MA 02111-1307, USA. */
/* AIX requires this to be the first thing in the file. */
-#if defined (_AIX) && !defined (REGEX_MALLOC)
+#if defined _AIX && !defined REGEX_MALLOC
#pragma alloca
#endif
@@ -32,14 +28,14 @@
#define _GNU_SOURCE
#ifdef HAVE_CONFIG_H
-#include <config.h>
+# include <config.h>
#endif
-#if defined(STDC_HEADERS) && !defined(emacs)
-#include <stddef.h>
+#if defined STDC_HEADERS && !defined emacs
+# include <stddef.h>
#else
/* We need this for `regex.h', and perhaps for the Emacs include files. */
-#include <sys/types.h>
+# include <sys/types.h>
#endif
/* For platform which support the ISO C amendement 1 functionality we
@@ -50,7 +46,7 @@
#endif
/* This is for other GNU distributions with internationalized messages. */
-#if HAVE_LIBINTL_H || defined (_LIBC)
+#if HAVE_LIBINTL_H || defined _LIBC
# include <libintl.h>
#else
# define gettext(msgid) (msgid)
@@ -59,83 +55,83 @@
#ifndef gettext_noop
/* This define is so xgettext can find the internationalizable
strings. */
-#define gettext_noop(String) String
+# define gettext_noop(String) String
#endif
/* The `emacs' switch turns on certain matching commands
that make sense only in Emacs. */
#ifdef emacs
-#include "lisp.h"
-#include "buffer.h"
-#include "syntax.h"
+# include "lisp.h"
+# include "buffer.h"
+# include "syntax.h"
#else /* not emacs */
/* If we are not linking with Emacs proper,
we can't use the relocating allocator
even if config.h says that we can. */
-#undef REL_ALLOC
+# undef REL_ALLOC
-#if defined (STDC_HEADERS) || defined (_LIBC)
-#include <stdlib.h>
-#else
+# if defined STDC_HEADERS || defined _LIBC
+# include <stdlib.h>
+# else
char *malloc ();
char *realloc ();
-#endif
+# endif
/* When used in Emacs's lib-src, we need to get bzero and bcopy somehow.
If nothing else has been done, use the method below. */
-#ifdef INHIBIT_STRING_HEADER
-#if !(defined (HAVE_BZERO) && defined (HAVE_BCOPY))
-#if !defined (bzero) && !defined (bcopy)
-#undef INHIBIT_STRING_HEADER
-#endif
-#endif
-#endif
+# ifdef INHIBIT_STRING_HEADER
+# if !(defined HAVE_BZERO && defined HAVE_BCOPY)
+# if !defined bzero && !defined bcopy
+# undef INHIBIT_STRING_HEADER
+# endif
+# endif
+# endif
/* This is the normal way of making sure we have a bcopy and a bzero.
This is used in most programs--a few other programs avoid this
by defining INHIBIT_STRING_HEADER. */
-#ifndef INHIBIT_STRING_HEADER
-#if defined (HAVE_STRING_H) || defined (STDC_HEADERS) || defined (_LIBC)
-#include <string.h>
-#ifndef bcmp
-#define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
-#endif
-#ifndef bcopy
-#define bcopy(s, d, n) memcpy ((d), (s), (n))
-#endif
-#ifndef bzero
-#define bzero(s, n) memset ((s), 0, (n))
-#endif
-#else
-#include <strings.h>
-#endif
-#endif
+# ifndef INHIBIT_STRING_HEADER
+# if defined HAVE_STRING_H || defined STDC_HEADERS || defined _LIBC
+# include <string.h>
+# if !defined bzero && !defined _LIBC
+# define bzero(s, n) (memset (s, '\0', n), (s))
+# endif
+# else
+# include <strings.h>
+# ifndef memcmp
+# define memcmp(s1, s2, n) bcmp (s1, s2, n)
+# endif
+# ifndef memcpy
+# define memcpy(d, s, n) (bcopy (s, d, n), (d))
+# endif
+# endif
+# endif
/* Define the syntax stuff for \<, \>, etc. */
/* This must be nonzero for the wordchar and notwordchar pattern
commands in re_match_2. */
-#ifndef Sword
-#define Sword 1
-#endif
+# ifndef Sword
+# define Sword 1
+# endif
-#ifdef SWITCH_ENUM_BUG
-#define SWITCH_ENUM_CAST(x) ((int)(x))
-#else
-#define SWITCH_ENUM_CAST(x) (x)
-#endif
+# ifdef SWITCH_ENUM_BUG
+# define SWITCH_ENUM_CAST(x) ((int)(x))
+# else
+# define SWITCH_ENUM_CAST(x) (x)
+# endif
/* How many characters in the character set. */
-#define CHAR_SET_SIZE 256
+# define CHAR_SET_SIZE 256
-#ifdef SYNTAX_TABLE
+# ifdef SYNTAX_TABLE
extern char *re_syntax_table;
-#else /* not SYNTAX_TABLE */
+# else /* not SYNTAX_TABLE */
static char re_syntax_table[CHAR_SET_SIZE];
@@ -164,9 +160,9 @@ init_syntax_once ()
done = 1;
}
-#endif /* not SYNTAX_TABLE */
+# endif /* not SYNTAX_TABLE */
-#define SYNTAX(c) re_syntax_table[c]
+# define SYNTAX(c) re_syntax_table[c]
#endif /* not emacs */
@@ -187,21 +183,21 @@ init_syntax_once ()
Defining isascii to 1 should let any compiler worth its salt
eliminate the && through constant folding." */
-#if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII))
-#define ISASCII(c) 1
+#if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII)
+# define ISASCII(c) 1
#else
-#define ISASCII(c) isascii(c)
+# define ISASCII(c) isascii(c)
#endif
#ifdef isblank
-#define ISBLANK(c) (ISASCII (c) && isblank (c))
+# define ISBLANK(c) (ISASCII (c) && isblank (c))
#else
-#define ISBLANK(c) ((c) == ' ' || (c) == '\t')
+# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
#endif
#ifdef isgraph
-#define ISGRAPH(c) (ISASCII (c) && isgraph (c))
+# define ISGRAPH(c) (ISASCII (c) && isgraph (c))
#else
-#define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c))
+# define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c))
#endif
#define ISPRINT(c) (ISASCII (c) && isprint (c))
@@ -216,7 +212,7 @@ init_syntax_once ()
#define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
#ifndef NULL
-#define NULL (void *)0
+# define NULL (void *)0
#endif
/* We remove any previous definition of `SIGN_EXTEND_CHAR',
@@ -225,10 +221,10 @@ init_syntax_once ()
(Per Bothner suggested the basic approach.) */
#undef SIGN_EXTEND_CHAR
#if __STDC__
-#define SIGN_EXTEND_CHAR(c) ((signed char) (c))
+# define SIGN_EXTEND_CHAR(c) ((signed char) (c))
#else /* not __STDC__ */
/* As in Harbison and Steele. */
-#define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128)
+# define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128)
#endif
/* Should we use malloc or alloca? If REGEX_MALLOC is not defined, we
@@ -243,74 +239,67 @@ init_syntax_once ()
#ifdef REGEX_MALLOC
-#define REGEX_ALLOCATE malloc
-#define REGEX_REALLOCATE(source, osize, nsize) realloc (source, nsize)
-#define REGEX_FREE free
+# define REGEX_ALLOCATE malloc
+# define REGEX_REALLOCATE(source, osize, nsize) realloc (source, nsize)
+# define REGEX_FREE free
#else /* not REGEX_MALLOC */
/* Emacs already defines alloca, sometimes. */
-#ifndef alloca
+# ifndef alloca
/* Make alloca work the best possible way. */
-#ifdef __GNUC__
-#define alloca __builtin_alloca
-#else /* not __GNUC__ */
-#if HAVE_ALLOCA_H
-#include <alloca.h>
-#else /* not __GNUC__ or HAVE_ALLOCA_H */
-#if 0 /* It is a bad idea to declare alloca. We always cast the result. */
-#ifndef _AIX /* Already did AIX, up at the top. */
-char *alloca ();
-#endif /* not _AIX */
-#endif
-#endif /* not HAVE_ALLOCA_H */
-#endif /* not __GNUC__ */
+# ifdef __GNUC__
+# define alloca __builtin_alloca
+# else /* not __GNUC__ */
+# if HAVE_ALLOCA_H
+# include <alloca.h>
+# endif /* HAVE_ALLOCA_H */
+# endif /* not __GNUC__ */
-#endif /* not alloca */
+# endif /* not alloca */
-#define REGEX_ALLOCATE alloca
+# define REGEX_ALLOCATE alloca
/* Assumes a `char *destination' variable. */
-#define REGEX_REALLOCATE(source, osize, nsize) \
+# define REGEX_REALLOCATE(source, osize, nsize) \
(destination = (char *) alloca (nsize), \
- bcopy (source, destination, osize), \
- destination)
+ memcpy (destination, source, osize))
/* No need to do anything to free, after alloca. */
-#define REGEX_FREE(arg) ((void)0) /* Do nothing! But inhibit gcc warning. */
+# define REGEX_FREE(arg) ((void)0) /* Do nothing! But inhibit gcc warning. */
#endif /* not REGEX_MALLOC */
/* Define how to allocate the failure stack. */
-#if defined (REL_ALLOC) && defined (REGEX_MALLOC)
+#if defined REL_ALLOC && defined REGEX_MALLOC
-#define REGEX_ALLOCATE_STACK(size) \
+# define REGEX_ALLOCATE_STACK(size) \
r_alloc (&failure_stack_ptr, (size))
-#define REGEX_REALLOCATE_STACK(source, osize, nsize) \
+# define REGEX_REALLOCATE_STACK(source, osize, nsize) \
r_re_alloc (&failure_stack_ptr, (nsize))
-#define REGEX_FREE_STACK(ptr) \
+# define REGEX_FREE_STACK(ptr) \
r_alloc_free (&failure_stack_ptr)
#else /* not using relocating allocator */
-#ifdef REGEX_MALLOC
+# ifdef REGEX_MALLOC
-#define REGEX_ALLOCATE_STACK malloc
-#define REGEX_REALLOCATE_STACK(source, osize, nsize) realloc (source, nsize)
-#define REGEX_FREE_STACK free
+# define REGEX_ALLOCATE_STACK malloc
+# define REGEX_REALLOCATE_STACK(source, osize, nsize) realloc (source, nsize)
+# define REGEX_FREE_STACK free
-#else /* not REGEX_MALLOC */
+# else /* not REGEX_MALLOC */
-#define REGEX_ALLOCATE_STACK alloca
+# define REGEX_ALLOCATE_STACK alloca
-#define REGEX_REALLOCATE_STACK(source, osize, nsize) \
+# define REGEX_REALLOCATE_STACK(source, osize, nsize) \
REGEX_REALLOCATE (source, osize, nsize)
/* No need to explicitly free anything. */
-#define REGEX_FREE_STACK(arg)
+# define REGEX_FREE_STACK(arg)
-#endif /* not REGEX_MALLOC */
+# endif /* not REGEX_MALLOC */
#endif /* not using relocating allocator */
@@ -522,10 +511,10 @@ extract_number (dest, source)
*dest += temp << 8;
}
-#ifndef EXTRACT_MACROS /* To debug the macros. */
-#undef EXTRACT_NUMBER
-#define EXTRACT_NUMBER(dest, src) extract_number (&dest, src)
-#endif /* not EXTRACT_MACROS */
+# ifndef EXTRACT_MACROS /* To debug the macros. */
+# undef EXTRACT_NUMBER
+# define EXTRACT_NUMBER(dest, src) extract_number (&dest, src)
+# endif /* not EXTRACT_MACROS */
#endif /* DEBUG */
@@ -550,11 +539,11 @@ extract_number_and_incr (destination, source)
*source += 2;
}
-#ifndef EXTRACT_MACROS
-#undef EXTRACT_NUMBER_AND_INCR
-#define EXTRACT_NUMBER_AND_INCR(dest, src) \
+# ifndef EXTRACT_MACROS
+# undef EXTRACT_NUMBER_AND_INCR
+# define EXTRACT_NUMBER_AND_INCR(dest, src) \
extract_number_and_incr (&dest, &src)
-#endif /* not EXTRACT_MACROS */
+# endif /* not EXTRACT_MACROS */
#endif /* DEBUG */
@@ -567,21 +556,21 @@ extract_number_and_incr (destination, source)
#ifdef DEBUG
/* We use standard I/O for debugging. */
-#include <stdio.h>
+# include <stdio.h>
/* It is useful to test things that ``must'' be true when debugging. */
-#include <assert.h>
+# include <assert.h>
static int debug = 0;
-#define DEBUG_STATEMENT(e) e
-#define DEBUG_PRINT1(x) if (debug) printf (x)
-#define DEBUG_PRINT2(x1, x2) if (debug) printf (x1, x2)
-#define DEBUG_PRINT3(x1, x2, x3) if (debug) printf (x1, x2, x3)
-#define DEBUG_PRINT4(x1, x2, x3, x4) if (debug) printf (x1, x2, x3, x4)
-#define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) \
+# define DEBUG_STATEMENT(e) e
+# define DEBUG_PRINT1(x) if (debug) printf (x)
+# define DEBUG_PRINT2(x1, x2) if (debug) printf (x1, x2)
+# define DEBUG_PRINT3(x1, x2, x3) if (debug) printf (x1, x2, x3)
+# define DEBUG_PRINT4(x1, x2, x3, x4) if (debug) printf (x1, x2, x3, x4)
+# define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) \
if (debug) print_partial_compiled_pattern (s, e)
-#define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) \
+# define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) \
if (debug) print_double_string (w, s1, sz1, s2, sz2)
@@ -801,7 +790,7 @@ print_partial_compiled_pattern (start, end)
case wordend:
printf ("/wordend");
-#ifdef emacs
+# ifdef emacs
case before_dot:
printf ("/before_dot");
break;
@@ -825,7 +814,7 @@ print_partial_compiled_pattern (start, end)
mcnt = *p++;
printf ("/%d", mcnt);
break;
-#endif /* emacs */
+# endif /* emacs */
case wordchar:
printf ("/wordchar");
@@ -918,16 +907,16 @@ printchar (c)
#else /* not DEBUG */
-#undef assert
-#define assert(e)
+# undef assert
+# define assert(e)
-#define DEBUG_STATEMENT(e)
-#define DEBUG_PRINT1(x)
-#define DEBUG_PRINT2(x1, x2)
-#define DEBUG_PRINT3(x1, x2, x3)
-#define DEBUG_PRINT4(x1, x2, x3, x4)
-#define DEBUG_PRINT_COMPILED_PATTERN(p, s, e)
-#define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2)
+# define DEBUG_STATEMENT(e)
+# define DEBUG_PRINT1(x)
+# define DEBUG_PRINT2(x1, x2)
+# define DEBUG_PRINT3(x1, x2, x3)
+# define DEBUG_PRINT4(x1, x2, x3, x4)
+# define DEBUG_PRINT_COMPILED_PATTERN(p, s, e)
+# define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2)
#endif /* not DEBUG */
@@ -1013,7 +1002,7 @@ static const char *re_error_msgid[] =
/* When using GNU C, we are not REALLY using the C alloca, no matter
what config.h may say. So don't take precautions for it. */
#ifdef __GNUC__
-#undef C_ALLOCA
+# undef C_ALLOCA
#endif
/* The match routines may not allocate if (1) they would do it with malloc
@@ -1021,8 +1010,8 @@ static const char *re_error_msgid[] =
Note that if REL_ALLOC is defined, matching would not use malloc for the
failure stack, but we would still use it for the register vectors;
so REL_ALLOC should not affect this. */
-#if (defined (C_ALLOCA) || defined (REGEX_MALLOC)) && defined (emacs)
-#undef MATCH_MAY_ALLOCATE
+#if (defined C_ALLOCA || defined REGEX_MALLOC) && defined emacs
+# undef MATCH_MAY_ALLOCATE
#endif
@@ -1035,7 +1024,7 @@ static const char *re_error_msgid[] =
when matching. If this number is exceeded, we allocate more
space, so it is not a hard limit. */
#ifndef INIT_FAILURE_ALLOC
-#define INIT_FAILURE_ALLOC 5
+# define INIT_FAILURE_ALLOC 5
#endif
/* Roughly the maximum number of failure points on the stack. Would be
@@ -1045,13 +1034,13 @@ static const char *re_error_msgid[] =
#ifdef INT_IS_16BIT
-#if defined (MATCH_MAY_ALLOCATE)
+# if defined MATCH_MAY_ALLOCATE
/* 4400 was enough to cause a crash on Alpha OSF/1,
whose default stack limit is 2mb. */
long int re_max_failures = 4000;
-#else
+# else
long int re_max_failures = 2000;
-#endif
+# endif
union fail_stack_elt
{
@@ -1070,13 +1059,13 @@ typedef struct
#else /* not INT_IS_16BIT */
-#if defined (MATCH_MAY_ALLOCATE)
+# if defined MATCH_MAY_ALLOCATE
/* 4400 was enough to cause a crash on Alpha OSF/1,
whose default stack limit is 2mb. */
int re_max_failures = 20000;
-#else
+# else
int re_max_failures = 2000;
-#endif
+# endif
union fail_stack_elt
{
@@ -1104,10 +1093,10 @@ typedef struct
Do `return -2' if the alloc fails. */
#ifdef MATCH_MAY_ALLOCATE
-#define INIT_FAIL_STACK() \
+# define INIT_FAIL_STACK() \
do { \
fail_stack.stack = (fail_stack_elt_t *) \
- REGEX_ALLOCATE_STACK (INIT_FAILURE_ALLOC * sizeof (fail_stack_elt_t)); \
+ REGEX_ALLOCATE_STACK (INIT_FAILURE_ALLOC * sizeof (fail_stack_elt_t)); \
\
if (fail_stack.stack == NULL) \
return -2; \
@@ -1116,14 +1105,14 @@ typedef struct
fail_stack.avail = 0; \
} while (0)
-#define RESET_FAIL_STACK() REGEX_FREE_STACK (fail_stack.stack)
+# define RESET_FAIL_STACK() REGEX_FREE_STACK (fail_stack.stack)
#else
-#define INIT_FAIL_STACK() \
+# define INIT_FAIL_STACK() \
do { \
fail_stack.avail = 0; \
} while (0)
-#define RESET_FAIL_STACK()
+# define RESET_FAIL_STACK()
#endif
@@ -1184,11 +1173,11 @@ typedef struct
/* Used to omit pushing failure point id's when we're not debugging. */
#ifdef DEBUG
-#define DEBUG_PUSH PUSH_FAILURE_INT
-#define DEBUG_POP(item_addr) *(item_addr) = POP_FAILURE_INT ()
+# define DEBUG_PUSH PUSH_FAILURE_INT
+# define DEBUG_POP(item_addr) *(item_addr) = POP_FAILURE_INT ()
#else
-#define DEBUG_PUSH(item)
-#define DEBUG_POP(item_addr)
+# define DEBUG_PUSH(item)
+# define DEBUG_POP(item_addr)
#endif
@@ -1286,9 +1275,9 @@ typedef struct
/* Individual items aside from the registers. */
#ifdef DEBUG
-#define NUM_NONREG_ITEMS 5 /* Includes failure point id. */
+# define NUM_NONREG_ITEMS 5 /* Includes failure point id. */
#else
-#define NUM_NONREG_ITEMS 4
+# define NUM_NONREG_ITEMS 4
#endif
/* We push at most this many items on the stack. */
@@ -1479,7 +1468,7 @@ static reg_errcode_t compile_range _RE_ARGS ((const char **p_ptr,
string passed to us by the user to an unsigned char that we can use
as an array index (in, e.g., `translate'). */
#ifndef PATFETCH
-#define PATFETCH(c) \
+# define PATFETCH(c) \
do {if (p == pend) return REG_EEND; \
c = (unsigned char) *p++; \
if (translate) c = (unsigned char) translate[c]; \
@@ -1502,7 +1491,7 @@ static reg_errcode_t compile_range _RE_ARGS ((const char **p_ptr,
`char *', to avoid warnings when a string constant is passed. But
when we use a character as a subscript we must make it unsigned. */
#ifndef TRANSLATE
-#define TRANSLATE(d) \
+# define TRANSLATE(d) \
(translate ? (char) translate[(unsigned char) (d)] : (d))
#endif
@@ -1570,15 +1559,15 @@ static reg_errcode_t compile_range _RE_ARGS ((const char **p_ptr,
MSC and drop MAX_BUF_SIZE a bit. Otherwise you may end up
reallocating to 0 bytes. Such thing is not going to work too well.
You have been warned!! */
-#if defined(_MSC_VER) && !defined(WIN32)
+#if defined _MSC_VER && !defined WIN32
/* Microsoft C 16-bit versions limit malloc to approx 65512 bytes.
The REALLOC define eliminates a flurry of conversion warnings,
but is not required. */
-#define MAX_BUF_SIZE 65500L
-#define REALLOC(p,s) realloc ((p), (size_t) (s))
+# define MAX_BUF_SIZE 65500L
+# define REALLOC(p,s) realloc ((p), (size_t) (s))
#else
-#define MAX_BUF_SIZE (1L << 16)
-#define REALLOC(p,s) realloc ((p), (s))
+# define MAX_BUF_SIZE (1L << 16)
+# define REALLOC(p,s) realloc ((p), (s))
#endif
/* Extend the buffer by twice its current size via realloc and
@@ -1865,7 +1854,7 @@ regex_compile (pattern, size, syntax, bufp)
/* Always count groups, whether or not bufp->no_sub is set. */
bufp->re_nsub = 0;
-#if !defined (emacs) && !defined (SYNTAX_TABLE)
+#if !defined emacs && !defined SYNTAX_TABLE
/* Initialize the syntax table. */
init_syntax_once ();
#endif
@@ -2842,7 +2831,7 @@ regex_compile (pattern, size, syntax, bufp)
{
fail_stack.size = (2 * re_max_failures * MAX_FAILURE_ITEMS);
-#ifdef emacs
+# ifdef emacs
if (! fail_stack.stack)
fail_stack.stack
= (fail_stack_elt_t *) xmalloc (fail_stack.size
@@ -2852,7 +2841,7 @@ regex_compile (pattern, size, syntax, bufp)
= (fail_stack_elt_t *) xrealloc (fail_stack.stack,
(fail_stack.size
* sizeof (fail_stack_elt_t)));
-#else /* not emacs */
+# else /* not emacs */
if (! fail_stack.stack)
fail_stack.stack
= (fail_stack_elt_t *) malloc (fail_stack.size
@@ -2862,7 +2851,7 @@ regex_compile (pattern, size, syntax, bufp)
= (fail_stack_elt_t *) realloc (fail_stack.stack,
(fail_stack.size
* sizeof (fail_stack_elt_t)));
-#endif /* not emacs */
+# endif /* not emacs */
}
regex_grow_registers (num_regs);
@@ -3543,9 +3532,9 @@ re_search_2 (bufp, string1, size1, string2, size2, startpos, range, regs, stop)
val = re_match_2_internal (bufp, string1, size1, string2, size2,
startpos, regs, stop);
#ifndef REGEX_MALLOC
-#ifdef C_ALLOCA
+# ifdef C_ALLOCA
alloca (0);
-#endif
+# endif
#endif
if (val >= 0)
@@ -3622,8 +3611,8 @@ re_search_2 (bufp, string1, size1, string2, size2, startpos, range, regs, stop)
/* Free everything we malloc. */
#ifdef MATCH_MAY_ALLOCATE
-#define FREE_VAR(var) if (var) REGEX_FREE (var); var = NULL
-#define FREE_VARIABLES() \
+# define FREE_VAR(var) if (var) REGEX_FREE (var); var = NULL
+# define FREE_VARIABLES() \
do { \
REGEX_FREE_STACK (fail_stack.stack); \
FREE_VAR (regstart); \
@@ -3637,7 +3626,7 @@ re_search_2 (bufp, string1, size1, string2, size2, startpos, range, regs, stop)
FREE_VAR (reg_info_dummy); \
} while (0)
#else
-#define FREE_VARIABLES() ((void)0) /* Do nothing! But inhibit gcc warning. */
+# define FREE_VARIABLES() ((void)0) /* Do nothing! But inhibit gcc warning. */
#endif /* not MATCH_MAY_ALLOCATE */
/* These values must meet several constraints. They must not be valid
@@ -3664,11 +3653,11 @@ re_match (bufp, string, size, pos, regs)
{
int result = re_match_2_internal (bufp, NULL, 0, string, size,
pos, regs, size);
-#ifndef REGEX_MALLOC
-#ifdef C_ALLOCA
+# ifndef REGEX_MALLOC
+# ifdef C_ALLOCA
alloca (0);
-#endif
-#endif
+# endif
+# endif
return result;
}
#endif /* not emacs */
@@ -3710,9 +3699,9 @@ re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop)
int result = re_match_2_internal (bufp, string1, size1, string2, size2,
pos, regs, stop);
#ifndef REGEX_MALLOC
-#ifdef C_ALLOCA
+# ifdef C_ALLOCA
alloca (0);
-#endif
+# endif
#endif
return result;
}
@@ -4460,7 +4449,7 @@ re_match_2_internal (bufp, string1, size1, string2, size2, pos, regs, stop)
past them. */
if (translate
? bcmp_translate (d, d2, mcnt, translate)
- : bcmp (d, d2, mcnt))
+ : memcmp (d, d2, mcnt))
goto fail;
d += mcnt, d2 += mcnt;
@@ -5413,7 +5402,7 @@ re_compile_pattern (pattern, length, bufp)
/* Entry points compatible with 4.2 BSD regex library. We don't define
them unless specifically requested. */
-#if defined (_REGEX_RE_COMP) || defined (_LIBC)
+#if defined _REGEX_RE_COMP || defined _LIBC
/* BSD has one and only one pattern buffer. */
static struct re_pattern_buffer re_comp_buf;
@@ -5687,11 +5676,15 @@ regerror (errcode, preg, errbuf, errbuf_size)
{
if (msg_size > errbuf_size)
{
- strncpy (errbuf, msg, errbuf_size - 1);
+#if defined HAVE_MEMPCPY || defined _LIBC
+ *((char *) __mempcpy (errbuf, msg, errbuf_size - 1)) = '\0';
+#else
+ memcpy (errbuf, msg, errbuf_size - 1);
errbuf[errbuf_size - 1] = 0;
+#endif
}
else
- strcpy (errbuf, msg);
+ memcpy (errbuf, msg, msg_size);
}
return msg_size;