glibc/libio/wstrops.c

331 lines
9.9 KiB
C
Raw Normal View History

Update. * Versions.def: Add GLIBC_2.2 for libc. * iconv/gconv.h: Make header suitable for inclusion in public header by protecting all names with __. * iconv/gconv.c: Adapt for symbol name changes. * iconv/gconv.h: Likewise. * iconv/gconv_builtin.c: Likewise. * iconv/gconv_close.c: Likewise. * iconv/gconv_db.c: Likewise. * iconv/gconv_dl.c: Likewise. * iconv/gconv_int.h: Likewise. * iconv/gconv_open.c: Likewise. * iconv/gconv_simple.c: Likewise. * iconv/iconv.c: Likewise. * iconv/iconv_close.c: Likewise. * iconv/iconv_open.c: Likewise. * iconv/loop.c: Likewise. * iconv/skeleton.c: Likewise. * iconvdata/8bit-gap.c: Likewise. * iconvdata/8bit-generic.c: Likewise. * iconvdata/ansi_x3.110.c: Likewise. * iconvdata/big5.c: Likewise. * iconvdata/cns11643.h: Likewise. * iconvdata/cns11643l1.h: Likewise. * iconvdata/euc-cn.c: Likewise. * iconvdata/euc-jp.c: Likewise. * iconvdata/euc-kr.c: Likewise. * iconvdata/euc-tw.c: Likewise. * iconvdata/gb2312.h: Likewise. * iconvdata/iso-2022-jp.c: Likewise. * iconvdata/iso-2022-kr.c: Likewise. * iconvdata/iso646.c: Likewise. * iconvdata/iso8859-1.c: Likewise. * iconvdata/iso_6937-2.c: Likewise. * iconvdata/iso_6937.c: Likewise. * iconvdata/jis0201.h: Likewise. * iconvdata/jis0208.h: Likewise. * iconvdata/jis0212.h: Likewise. * iconvdata/johab.c: Likewise. * iconvdata/ksc5601.h: Likewise. * iconvdata/sjis.c: Likewise. * iconvdata/t.61.c: Likewise. * iconvdata/uhc.c: Likewise. * stdlib/mblen.c: Likewise. * stdlib/mbtowc.c: Likewise. * stdlib/wctomb.c: Likewise. * wcsmbs/btowc.c: Likewise. * wcsmbs/mbrtowc.c: Likewise. * wcsmbs/mbsnrtowcs.c: Likewise. * wcsmbs/mbsrtowcs.c: Likewise. * wcsmbs/wchar.h: Likewise. * wcsmbs/wcrtomb.c: Likewise. * wcsmbs/wcsmbsload.c: Likewise. * wcsmbs/wcsmbsload.h: Likewise. * wcsmbs/wcsnrtombs.c: Likewise. * wcsmbs/wcsrtombs.c: Likewise. * wcsmbs/wctob.c: Likewise. * include/limits.h (MB_LEN_MAX): Increase to 16. * sysdeps/generic/_G_config.h: Define _G_fpos_t as struct. Define _G_iconv_t. * sysdeps/unix/sysv/linux/_G_config.h: Likewise. * include/wchar.h: Change mbstate_t to __mbstate_t. * libio/Makefile (routines): Add wfiledoalloc, oldiofgetpos, oldiofgetpos64, oldiofsetpos, oldiofsetpos64, fputwc, fputwc_u, getwc, getwc_u, getwchar, getwchar_u, iofgetws, iofgetws_u, iofputws, iofputws_u, iogetwline, iowpadn, ioungetwc, putwc, putwc_u, putchar, putchar_u, swprintf, vwprintf, wprintf, wscanf, fwscanf, vwscanf, vswprintf, iovswscanf, swscanf, wgenops, wstrops, wfileops, and iofwide. (tests): Add tst_swprintf, tst_wprintf, tst_swscanf, and tst_wscanf. * libio/Versions: Add _IO_fgetpos, _IO_fgetpos64, _IO_fsetpos, _IO_fsetpos64, fgetpos, fgetpos64, fgetwc, fgetwc_unlocked, fgetws, fgetws_unlocked, fputwc, fputwc_unlocked, fputws, fputws_unlocked, fsetpos, fsetpos64, fwide, fwprintf, fwscanf, getwc, getwc_unlocked, getwchar, getwchar_unlocked, putwc, putwc_unlocked, putwchar, putwchar_unlocked, swprintf, swscanf, ungetwc, vfwprintf, vswprintf, vwprintf, vfwscanf, vswscanf, vwscanf, wprintf, and wscanf to GLIBC_2.2 for libc. * libio/libio.h: Define codecvt struct. Define _IO_wide_data. Extend _IO_file contain pointer to codecvt, widedata and mode. (_IO_getwc_unlocked): New macro. (_IO_putwc_unlocked): New macro. (_IO_fwide): New macro. * libio/libioP.h: Add new prototypes and adjust existing declarations. * libio/fileops.c (_IO_new_file_close_it): Reset normal or widedata buffers based on mode. (new_do_write): Set _IO_write_end to _IO_buf_end if stream is wide oriented. (_IO_new_file_overflow): Don't depend only on _IO_CURRENTLY_PUTTING flag to be enough to signal unallocated buffer. For wide oriented stream don't make it linebuffered. Don't use _IO_do_flush, use _IO_new_do_write directly. (_IO_new_file_seekoff): Change return value type to _IO_off64_t. (_IO_file_seek): Likewise. * libio/genops.c (_IO_least_marker): Make global. (__underflow): Orient stream if not already done. (__uflow): Likewise. (_IO_default_seekpos): Change to type _IO_off64_t. (_IO_default_seekoff): Likewise. (_IO_default_seek): Likewise. (_IO_no_init): New function. Similar to _IO_init but allows to orient in initialization. * libio/iolibio.h: Add prototype for _IO_vswprintf. Change _IO_pos_BAD to use _IO_off64_t. * libio/ftello.c: Use _IO_off_t. For now abort when use with wide char stream. * libio/ftello64.c: Likewise. * libio/ioftell.c: Likewise. * libio/iofopncook.c: Likewise. * libio/ioseekoff.c: Likewise. * libio/ioseekpos.c: Likewise. * libio/oldfileops.c: Likewise. * libio/iofgetpos.c: Store state of conversion if necessary. * libio/iofgetpos64.c: Likewise. * libio/iofsetpos.c: Restore conversion state if necessary. * libio/iofsetpos64.c: Likewise. * libio/iofdopen.c: Initialize so that stream can be wide oriented. * libio/iofopen.c: Likewise. * libio/iofopen64.c: Likewise. * libio/iopopen.c: Likewise. * libio/iovdprintf.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/memstream.c: Likewise. * libio/obprintf.c: Likewise. * libio/iofputs.c: Orient stream if not already happened. * libio/iofputs_u.c: Likewise. * libio/iofwrite.c: Likewise. * libio/iofwrite_u.c: Likewise. * libio/ioputs.c: Likewise. * libio/iosetbuffer.c: Handle not yet oriented stream. * libio/iosetvbuf.c: Likewise. * libio/oldstdfiles.c: Adjust FILEBUF_LITERAL call. * libio/stdfiles.c: Likewise. * libio/strops.c (_IO_str_overflow): Correctly free buffer after failed allocation. (_IO_str_seekoff): Use _IO_off64_t. * libio/vasprintf.c: Pre-orient stream. * libio/vsnprintf.c: Likewise. * libio/fputwc.c: New file. * libio/fputwc_u.c: New file. * libio/fwprintf.c: New file. * libio/fwscanf.c: New file. * libio/getwc.c: New file. * libio/getwc_u.c: New file. * libio/getwchar.c: New file. * libio/getwchar_u.c: New file. * libio/iofgetws.c: New file. * libio/iofgetws_u.c: New file. * libio/iofputws.c: New file. * libio/iofputws_u.c: New file. * libio/iofwide.c: New file. * libio/iogetwline.c: New file. * libio/ioungetwc.c: New file. * libio/iovswscanf.c: New file. * libio/iowpadn.c: New file. * libio/oldiofgetpos.c: New file. * libio/oldiofgetpos64.c: New file. * libio/oldiofsetpos.c: New file. * libio/oldiofsetpos64.c: New file. * libio/putwc.c: New file. * libio/putwc_u.c: New file. * libio/putwchar.c: New file. * libio/putwchar_u.c: New file. * libio/swprintf.c: New file. * libio/swscanf.c: New file. * libio/tst_swprintf.c: New file. * libio/tst_swscanf.c: New file. * libio/tst_wprintf.c: New file. * libio/tst_wscanf.c: New file. * libio/tst_wscanf.input: New file. * libio/vswprintf.c: New file. * libio/vwprintf.c: New file. * libio/vwscanf.c: New file. * libio/wfiledoalloc.c: New file. * libio/wfileops.c: New file. * libio/wgenops.c: New file. * libio/wprintf.c: New file. * libio/wscanf.c: New file. * libio/wstrops.c: New file. * stdio-common/Makefile (routines): Add _itowa, itowa-digits, vfwprintf, and vfwscanf. * stdio-common/_itoa.c (base_table): Rename to _IO_base_table and make global. * stdio-common/_itowa.c: New file. * stdio-common/_itowa.h: New file. * stdio-common/itoa-digits.c: Minimal optimization. * stdio-common/itowa-digits.c: New file. * stdio-common/printf-parse.h: Allow use in wide character context. * stdio-common/printf-prs.c: Define ISASCII and MBRLEN. * stdio-common/printf.h (printf_info): Add wide bit. * stdio-common/printf_fp.c: Determine from wide bit whether stream is wide oriented or not. * stdio-common/printf_size.c: Likewise. * sysdeps/generic/printf_fphex.c: Likewise. * stdlib/strfmon.c: Call __printf_fp with wide bit cleared. * stdio-common/vfprintf.c: Rewrite to allow use in wide character context. * stdio-common/vfscand.c: Likewise. * stdio-common/vfwprintf.c: New file. * stdio-common/vfwscanf.c: New file. * time/Makefile (routines): Add wcsftime. (tests): Add tst_wcsftime. * time/Versions: Add wcsftime to GLIBC_2.2 for libc. * time/strftime.c: Make usable as wcsftime. * time/wcsftime.c: New file. * time/tst_wcsftime.c: New file. * wcsmbs/Makefile (routines): Add wmempcpy and wcschrnul. * wcsmbs/Versions: Add wmempcpy and wcschrnul to GLIBC_2.2 for libc. * wcsmbs/wcschrnul.c: New file. * wcsmbs/wmemcpy.c: New file. * wcsmbs/wmemcpy.c: Rename to __wmemcpy and make wmemcpy weak alias. * wcsmbs/wmemmove.c: Likewise for wmemmove. * manual/stdio.texi: Document is_char and wide element if printf_info. * manual/time.texi: Document wcsftime. * include/wchar.h: Add prototypes for __wmemcpy, __wmempcpy, __wmemmove, __wcschrnul, and __vfwscanf. * locale/langinfo.h: Add new LC_TIME entries for wchar_t data. * locale/C-time.c: Adapt for above change. * locale/categories.def: Likewise. * locale/localeinfo.h: Likewise. * localedata/Makefile: Don't run tests for now.
1999-06-16 22:55:47 +00:00
/* Copyright (C) 1993, 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU IO Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this library; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA.
As a special exception, if you link this library with files
compiled with a GNU compiler to produce an executable, this does
not cause the resulting executable to be covered by the GNU General
Public License. This exception does not however invalidate any
other reasons why the executable file might be covered by the GNU
General Public License. */
#include "strfile.h"
#include "libioP.h"
#include <string.h>
#include <wchar.h>
#if 0
/* The following definitions are for exposition only.
They map the terminology used in the ANSI/ISO C++ draft standard
to the implementation. */
/* allocated: set when a dynamic array object has been allocated, and
hence should be freed by the destructor for the strstreambuf object. */
#define ALLOCATED(FP) ((FP)->_f._IO_buf_base && DYNAMIC(FP))
/* constant: set when the array object has const elements,
so the output sequence cannot be written. */
#define CONSTANT(FP) ((FP)->_f._IO_file_flags & _IO_NO_WRITES)
/* alsize: the suggested minimum size for a dynamic array object. */
#define ALSIZE(FP) ??? /* not stored */
/* palloc: points to the function to call to allocate a dynamic array object.*/
#define PALLOC(FP) \
((FP)->_s._allocate_buffer == default_alloc ? 0 : (FP)->_s._allocate_buffer)
/* pfree: points to the function to call to free a dynamic array object. */
#define PFREE(FP) \
((FP)->_s._free_buffer == default_free ? 0 : (FP)->_s._free_buffer)
#endif
#ifdef TODO
/* An "unbounded buffer" is when a buffer is supplied, but with no
specified length. An example is the buffer argument to sprintf.
*/
#endif
void
_IO_wstr_init_static (fp, ptr, size, pstart)
_IO_FILE *fp;
wchar_t *ptr;
int size;
wchar_t *pstart;
{
if (size == 0)
size = __wcslen (ptr);
else if (size < 0)
{
/* If size is negative 'the characters are assumed to
continue indefinitely.' This is kind of messy ... */
int s;
size = 512;
/* Try increasing powers of 2, as long as we don't wrap around. */
for (; s = 2*size, s > 0 && ptr + s > ptr && s < 0x4000000L; )
size = s;
/* Try increasing size as much as we can without wrapping around. */
for (s = size >> 1; s > 0; s >>= 1)
{
if (ptr + size + s > ptr)
size += s;
}
}
_IO_wsetb (fp, ptr, ptr + size, 0);
fp->_wide_data->_IO_write_base = ptr;
fp->_wide_data->_IO_read_base = ptr;
fp->_wide_data->_IO_read_ptr = ptr;
if (pstart)
{
fp->_wide_data->_IO_write_ptr = pstart;
fp->_wide_data->_IO_write_end = ptr + size;
fp->_wide_data->_IO_read_end = pstart;
}
else
{
fp->_wide_data->_IO_write_ptr = ptr;
fp->_wide_data->_IO_write_end = ptr;
fp->_wide_data->_IO_read_end = ptr + size;
}
/* A null _allocate_buffer function flags the strfile as being static. */
(((_IO_strfile *) fp)->_s._allocate_buffer) = (_IO_alloc_type)0;
}
void
_IO_wstr_init_readonly (fp, ptr, size)
_IO_FILE *fp;
const char *ptr;
int size;
{
_IO_wstr_init_static (fp, (wchar_t *) ptr, size, NULL);
fp->_IO_file_flags |= _IO_NO_WRITES;
}
_IO_wint_t
_IO_wstr_overflow (fp, c)
_IO_FILE *fp;
_IO_wint_t c;
{
int flush_only = c == WEOF;
_IO_size_t pos;
if (fp->_flags & _IO_NO_WRITES)
return flush_only ? 0 : WEOF;
if ((fp->_flags & _IO_TIED_PUT_GET) && !(fp->_flags & _IO_CURRENTLY_PUTTING))
{
fp->_flags |= _IO_CURRENTLY_PUTTING;
fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_read_ptr;
fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_read_end;
}
pos = fp->_wide_data->_IO_write_ptr - fp->_wide_data->_IO_write_base;
if (pos >= (_IO_size_t) (_IO_wblen (fp) + flush_only))
{
if (fp->_flags & _IO_USER_BUF) /* not allowed to enlarge */
return WEOF;
else
{
wchar_t *new_buf;
wchar_t *old_buf = fp->_wide_data->_IO_buf_base;
_IO_size_t new_size = 2 * _IO_wblen (fp) + 100;
new_buf
= (wchar_t *) (*((_IO_strfile *) fp)->_s._allocate_buffer) (new_size
* sizeof (wchar_t));
if (new_buf == NULL)
{
/* __ferror(fp) = 1; */
return WEOF;
}
if (old_buf)
{
__wmemcpy (new_buf, old_buf, _IO_wblen (fp));
(*((_IO_strfile *) fp)->_s._free_buffer) (old_buf);
/* Make sure _IO_setb won't try to delete _IO_buf_base. */
fp->_wide_data->_IO_buf_base = NULL;
}
_IO_wsetb (fp, new_buf, new_buf + new_size, 1);
fp->_wide_data->_IO_read_base =
new_buf + (fp->_wide_data->_IO_read_base - old_buf);
fp->_wide_data->_IO_read_ptr =
new_buf + (fp->_wide_data->_IO_read_ptr - old_buf);
fp->_wide_data->_IO_read_end =
new_buf + (fp->_wide_data->_IO_read_end - old_buf);
fp->_wide_data->_IO_write_ptr =
new_buf + (fp->_wide_data->_IO_write_ptr - old_buf);
fp->_wide_data->_IO_write_base = new_buf;
fp->_wide_data->_IO_write_end = fp->_wide_data->_IO_buf_end;
}
}
if (!flush_only)
*fp->_wide_data->_IO_write_ptr++ = c;
if (fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_read_end)
fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_write_ptr;
return c;
}
_IO_wint_t
_IO_wstr_underflow (fp)
_IO_FILE *fp;
{
if (fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_read_end)
fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_write_ptr;
if ((fp->_flags & _IO_TIED_PUT_GET) && (fp->_flags & _IO_CURRENTLY_PUTTING))
{
fp->_flags &= ~_IO_CURRENTLY_PUTTING;
fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_write_ptr;
fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_write_end;
}
if (fp->_wide_data->_IO_read_ptr < fp->_wide_data->_IO_read_end)
return *fp->_wide_data->_IO_read_ptr;
else
return WEOF;
}
/* The size of the valid part of the buffer. */
_IO_ssize_t
_IO_wstr_count (fp)
_IO_FILE *fp;
{
return ((fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_read_end
? fp->_wide_data->_IO_write_ptr : fp->_wide_data->_IO_read_end)
- fp->_wide_data->_IO_read_base);
}
_IO_off64_t
_IO_wstr_seekoff (fp, offset, dir, mode)
_IO_FILE *fp;
_IO_off64_t offset;
int dir;
int mode;
{
_IO_off64_t new_pos;
if (mode == 0 && (fp->_flags & _IO_TIED_PUT_GET))
mode = (fp->_flags & _IO_CURRENTLY_PUTTING ? _IOS_OUTPUT : _IOS_INPUT);
if (mode == 0)
{
/* Don't move any pointers. But there is no clear indication what
mode FP is in. Let's guess. */
if (fp->_IO_file_flags & _IO_NO_WRITES)
new_pos = fp->_wide_data->_IO_read_ptr - fp->_wide_data->_IO_read_base;
else
new_pos = (fp->_wide_data->_IO_write_ptr
- fp->_wide_data->_IO_write_base);
}
else
{
_IO_ssize_t cur_size = _IO_wstr_count (fp);
new_pos = EOF;
/* Move the get pointer, if requested. */
if (mode & _IOS_INPUT)
{
switch (dir)
{
case _IO_seek_end:
offset += cur_size;
break;
case _IO_seek_cur:
offset += (fp->_wide_data->_IO_read_ptr
- fp->_wide_data->_IO_read_base);
break;
default: /* case _IO_seek_set: */
break;
}
if (offset < 0 || (_IO_ssize_t) offset > cur_size)
return EOF;
fp->_wide_data->_IO_read_ptr = (fp->_wide_data->_IO_read_base
+ offset);
fp->_wide_data->_IO_read_end = (fp->_wide_data->_IO_read_base
+ cur_size);
new_pos = offset;
}
/* Move the put pointer, if requested. */
if (mode & _IOS_OUTPUT)
{
switch (dir)
{
case _IO_seek_end:
offset += cur_size;
break;
case _IO_seek_cur:
offset += (fp->_wide_data->_IO_write_ptr
- fp->_wide_data->_IO_write_base);
break;
default: /* case _IO_seek_set: */
break;
}
if (offset < 0 || (_IO_ssize_t) offset > cur_size)
return EOF;
fp->_wide_data->_IO_write_ptr = (fp->_wide_data->_IO_write_base
+ offset);
new_pos = offset;
}
}
return new_pos;
}
_IO_wint_t
_IO_wstr_pbackfail (fp, c)
_IO_FILE *fp;
_IO_wint_t c;
{
if ((fp->_flags & _IO_NO_WRITES) && c != EOF)
return WEOF;
return _IO_wdefault_pbackfail (fp, c);
}
void
_IO_wstr_finish (fp, dummy)
_IO_FILE *fp;
int dummy;
{
if (fp->_wide_data->_IO_buf_base && !(fp->_flags & _IO_USER_BUF))
(((_IO_strfile *) fp)->_s._free_buffer) (fp->_wide_data->_IO_buf_base);
fp->_wide_data->_IO_buf_base = NULL;
_IO_wdefault_finish (fp, 0);
}
struct _IO_jump_t _IO_wstr_jumps =
{
JUMP_INIT_DUMMY,
JUMP_INIT(finish, _IO_wstr_finish),
JUMP_INIT(overflow, (_IO_overflow_t) _IO_wstr_overflow),
JUMP_INIT(underflow, (_IO_underflow_t) _IO_wstr_underflow),
JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow),
JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail),
JUMP_INIT(xsputn, _IO_wdefault_xsputn),
JUMP_INIT(xsgetn, _IO_wdefault_xsgetn),
JUMP_INIT(seekoff, _IO_wstr_seekoff),
JUMP_INIT(seekpos, _IO_default_seekpos),
JUMP_INIT(setbuf, (_IO_setbuf_t) _IO_wdefault_setbuf),
JUMP_INIT(sync, _IO_default_sync),
JUMP_INIT(doallocate, _IO_wdefault_doallocate),
JUMP_INIT(read, _IO_default_read),
JUMP_INIT(write, _IO_default_write),
JUMP_INIT(seek, _IO_default_seek),
JUMP_INIT(close, _IO_default_close),
JUMP_INIT(stat, _IO_default_stat),
JUMP_INIT(showmanyc, _IO_default_showmanyc),
JUMP_INIT(imbue, _IO_default_imbue)
};