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Imported from ../bash-3.0.tar.gz.

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This commit is contained in:
Jari Aalto 2004-07-27 13:29:18 +00:00
commit b80f6443b6
400 changed files with 69247 additions and 13346 deletions
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167
include/shmbutil.h
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@ -1,6 +1,6 @@
/* shmbutil.h -- utility functions for multibyte characters. */
/* Copyright (C) 2002 Free Software Foundation, Inc.
/* Copyright (C) 2002-2004 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
@ -23,53 +23,21 @@
#include "stdc.h"
/************************************************/
/* check multibyte capability for I18N code */
/************************************************/
/* For platforms which support the ISO C amendement 1 functionality we
support user defined character classes. */
/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */
#if defined (HAVE_WCTYPE_H) && defined (HAVE_WCHAR_H)
# include <wchar.h>
# include <wctype.h>
# if defined (HAVE_MBSRTOWCS) /* system is supposed to support XPG5 */
# define HANDLE_MULTIBYTE 1
# endif
#endif /* HAVE_WCTYPE_H && HAVE_WCHAR_H */
/* Some systems, like BeOS, have multibyte encodings but lack mbstate_t. */
#if HANDLE_MULTIBYTE && !defined (HAVE_MBSTATE_T)
# define wcsrtombs(dest, src, len, ps) (wcsrtombs) (dest, src, len, 0)
# define mbsrtowcs(dest, src, len, ps) (mbsrtowcs) (dest, src, len, 0)
# define wcrtomb(s, wc, ps) (wcrtomb) (s, wc, 0)
# define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
# define mbrlen(s, n, ps) (mbrlen) (s, n, 0)
# define mbstate_t int
#endif /* HANDLE_MULTIBYTE && !HAVE_MBSTATE_T */
/* Make sure MB_LEN_MAX is at least 16 on systems that claim to be able to
handle multibyte chars (some systems define MB_LEN_MAX as 1) */
#ifdef HANDLE_MULTIBYTE
# include <limits.h>
# if defined(MB_LEN_MAX) && (MB_LEN_MAX < 16)
# undef MB_LEN_MAX
# endif
# if !defined (MB_LEN_MAX)
# define MB_LEN_MAX 16
# endif
#endif /* HANDLE_MULTIBYTE */
/************************************************/
/* end of multibyte capability checks for I18N */
/************************************************/
/* Include config.h for HANDLE_MULTIBYTE */
#include <config.h>
#if defined (HANDLE_MULTIBYTE)
extern size_t xmbsrtowcs __P((wchar_t *, const char **, size_t, mbstate_t *));
extern size_t xdupmbstowcs __P((wchar_t **, char ***, const char *));
extern char *xstrchr __P((const char *, int));
#ifndef MB_INVALIDCH
#define MB_INVALIDCH(x) ((x) == (size_t)-1 || (x) == (size_t)-2)
#define MB_NULLWCH(x) ((x) == 0)
#endif
#else /* !HANDLE_MULTIBYTE */
#undef MB_LEN_MAX
@ -81,6 +49,11 @@ extern char *xstrchr __P((const char *, int));
#undef xstrchr
#define xstrchr(s, c) strchr(s, c)
#ifndef MB_INVALIDCH
#define MB_INVALIDCH(x) (0)
#define MB_NULLWCH(x) (0)
#endif
#endif /* !HANDLE_MULTIBYTE */
/* Declare and initialize a multibyte state. Call must be terminated
@ -120,6 +93,8 @@ extern char *xstrchr __P((const char *, int));
state = state_bak; \
(_i)++; \
} \
else if (mblength == 0) \
(_i)++; \
else \
(_i) += mblength; \
} \
@ -160,6 +135,89 @@ extern char *xstrchr __P((const char *, int));
# define ADVANCE_CHAR_P(_str, _strsize)
#endif /* !HANDLE_MULTIBYTE */
/* Back up one (possibly multi-byte) character in string _STR of length
_STRSIZE, starting at index _I. STATE must have already been declared. */
#if defined (HANDLE_MULTIBYTE)
# define BACKUP_CHAR(_str, _strsize, _i) \
do \
{ \
if (MB_CUR_MAX > 1) \
{ \
mbstate_t state_bak; \
size_t mblength; \
int _x, _p; /* _x == temp index into string, _p == prev index */ \
\
_x = _p = 0; \
while (_x < (_i)) \
{ \
state_bak = state; \
mblength = mbrlen ((_str) + (_x), (_strsize) - (_x), &state); \
\
if (mblength == (size_t)-2 || mblength == (size_t)-1) \
{ \
state = state_bak; \
_x++; \
} \
else if (mblength == 0) \
_x++; \
else \
{ \
_p = _x; /* _p == start of prev mbchar */ \
_x += mblength; \
} \
} \
(_i) = _p; \
} \
else \
(_i)--; \
} \
while (0)
#else
# define BACKUP_CHAR(_str, _strsize, _i) (_i)--
#endif /* !HANDLE_MULTIBYTE */
/* Back up one (possibly multibyte) character in the string _BASE of length
_STRSIZE starting at _STR (_BASE <= _STR <= (_BASE + _STRSIZE) ).
SPECIAL: DO NOT assume that _STR will be decremented by 1 after this call. */
#if defined (HANDLE_MULTIBYTE)
# define BACKUP_CHAR_P(_base, _strsize, _str) \
do \
{ \
if (MB_CUR_MAX > 1) \
{ \
mbstate_t state_bak; \
size_t mblength; \
char *_x, _p; /* _x == temp pointer into string, _p == prev pointer */ \
\
_x = _p = _base; \
while (_x < (_str)) \
{ \
state_bak = state; \
mblength = mbrlen (_x, (_strsize) - _x, &state); \
\
if (mblength == (size_t)-2 || mblength == (size_t)-1) \
{ \
state = state_bak; \
_x++; \
} \
else if (mblength == 0) \
_x++; \
else \
{ \
_p = _x; /* _p == start of prev mbchar */ \
_x += mblength; \
} \
} \
(_str) = _p; \
} \
else \
(_str)--; \
} \
while (0)
#else
# define BACKUP_CHAR_P(_base, _strsize, _str) (_str)--
#endif /* !HANDLE_MULTIBYTE */
/* Copy a single character from the string _SRC to the string _DST.
_SRCEND is a pointer to the end of _SRC. */
#if defined (HANDLE_MULTIBYTE)
@ -344,4 +402,31 @@ extern char *xstrchr __P((const char *, int));
# define SADD_MBCHAR(_dst, _src, _si, _srcsize)
#endif
/* Watch out when using this -- it's just straight textual subsitution */
#if defined (HANDLE_MULTIBYTE)
# define SADD_MBQCHAR_BODY(_dst, _src, _si, _srcsize) \
\
int i; \
mbstate_t state_bak; \
size_t mblength; \
\
state_bak = state; \
mblength = mbrlen ((_src) + (_si), (_srcsize) - (_si), &state); \
if (mblength == (size_t)-1 || mblength == (size_t)-2) \
{ \
state = state_bak; \
mblength = 1; \
} \
if (mblength < 1) \
mblength = 1; \
\
(_dst) = (char *)xmalloc (mblength + 2); \
(_dst)[0] = CTLESC; \
for (i = 0; i < mblength; i++) \
(_dst)[i+1] = (_src)[(_si)++]; \
(_dst)[mblength+1] = '\0'; \
\
goto add_string
#endif /* HANDLE_MULTIBYTE */
#endif /* _SH_MBUTIL_H_ */