1515 lines
48 KiB
C
1515 lines
48 KiB
C
/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <ctype.h>
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#include <limits.h>
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#include <printf.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <wchar.h>
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#include "_itoa.h"
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#include "../locale/localeinfo.h"
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/* This code is shared between the standard stdio implementation found
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in GNU C library and the libio implementation originally found in
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GNU libg++.
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Beside this it is also shared between the normal and wide character
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implementation as defined in ISO/IEC 9899:1990/Amendment 1:1995. */
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#ifndef COMPILE_WPRINTF
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# define CHAR_T char
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# define UCHAR_T unsigned char
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# define INT_T int
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# define L_(Str) Str
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# define ISDIGIT(Ch) isdigit (Ch)
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# ifdef USE_IN_LIBIO
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# define PUT(F, S, N) _IO_sputn (F, S, N)
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# define PAD(Padchar) \
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if (width > 0) \
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done += _IO_padn (s, Padchar, width)
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# else
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# define PUTC(C, F) putc (C, F)
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ssize_t __printf_pad __P ((FILE *, char pad, size_t n));
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# define PAD(Padchar) \
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if (width > 0) \
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{ if (__printf_pad (s, Padchar, width) == -1) \
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return -1; else done += width; }
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# endif
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#else
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# define vfprintf vfwprintf
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# define CHAR_T wchar_t
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# define UCHAR_T uwchar_t
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# define INT_T wint_t
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# define L_(Str) L##Str
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# define ISDIGIT(Ch) iswdigit (Ch)
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# ifdef USE_IN_LIBIO
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# define PUT(F, S, N) _IO_sputn (F, S, N)
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# define PAD(Padchar) \
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if (width > 0) \
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done += _IO_wpadn (s, Padchar, width)
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# else
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# define PUTC(C, F) wputc (C, F)
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ssize_t __wprintf_pad __P ((FILE *, wchar_t pad, size_t n));
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# define PAD(Padchar) \
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if (width > 0) \
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{ if (__wprintf_pad (s, Padchar, width) == -1) \
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return -1; else done += width; }
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# endif
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#endif
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/* Include the shared code for parsing the format string. */
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#include "printf-parse.h"
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#ifdef USE_IN_LIBIO
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/* This code is for use in libio. */
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# include <libioP.h>
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# define PUTC(C, F) _IO_putc_unlocked (C, F)
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# define vfprintf _IO_vfprintf
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# define size_t _IO_size_t
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# define FILE _IO_FILE
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# define va_list _IO_va_list
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# undef BUFSIZ
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# define BUFSIZ _IO_BUFSIZ
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# define ARGCHECK(S, Format) \
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do \
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{ \
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/* Check file argument for consistence. */ \
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CHECK_FILE (S, -1); \
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if (S->_flags & _IO_NO_WRITES || Format == NULL) \
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{ \
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MAYBE_SET_EINVAL; \
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return -1; \
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} \
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} while (0)
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# define UNBUFFERED_P(S) ((S)->_IO_file_flags & _IO_UNBUFFERED)
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# define flockfile(S) _IO_flockfile (S)
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# define funlockfile(S) _IO_funlockfile (S)
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#else /* ! USE_IN_LIBIO */
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/* This code is for use in the GNU C library. */
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# include <stdio.h>
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# define PUT(F, S, N) fwrite (S, 1, N, F)
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# define ARGCHECK(S, Format) \
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do \
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{ \
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/* Check file argument for consistence. */ \
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if (!__validfp(S) || !S->__mode.__write || Format == NULL) \
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{ \
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errno = EINVAL; \
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return -1; \
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} \
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if (!S->__seen) \
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{ \
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if (__flshfp (S, EOF) == EOF) \
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return -1; \
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} \
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} \
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while (0)
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# define UNBUFFERED_P(s) ((s)->__buffer == NULL)
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# define flockfile(S) /* nothing */
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# define funlockfile(S) /* nothing */
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#endif /* USE_IN_LIBIO */
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#define outchar(Ch) \
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do \
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{ \
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register const int outc = (Ch); \
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if (PUTC (outc, s) == EOF) \
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return -1; \
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else \
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++done; \
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} \
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while (0)
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#define outstring(String, Len) \
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do \
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{ \
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if (PUT (s, String, Len) != Len) \
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return -1; \
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done += Len; \
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} \
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while (0)
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/* For handling long_double and longlong we use the same flag. */
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#ifndef is_longlong
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# define is_longlong is_long_double
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#endif
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/* Global variables. */
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static const char null[] = "(null)";
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/* Helper function to provide temporary buffering for unbuffered streams. */
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static int buffered_vfprintf __P ((FILE *stream, const CHAR_T *fmt, va_list));
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/* Handle unknown format specifier. */
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static int printf_unknown __P ((FILE *, const struct printf_info *,
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const void *const *));
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/* Group digits of number string. */
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static char *group_number __P ((CHAR_T *, CHAR_T *, const CHAR_T *, wchar_t));
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/* The function itself. */
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int
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vfprintf (FILE *s, const CHAR_T *format, va_list ap)
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{
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/* The character used as thousands separator. */
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wchar_t thousands_sep;
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/* The string describing the size of groups of digits. */
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const char *grouping;
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/* Place to accumulate the result. */
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int done;
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/* Current character in format string. */
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const UCHAR_T *f;
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/* End of leading constant string. */
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const UCHAR_T *lead_str_end;
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/* Points to next format specifier. */
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const UCHAR_T *end_of_spec;
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/* Buffer intermediate results. */
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char work_buffer[1000];
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#define workend (&work_buffer[sizeof (work_buffer) - 1])
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/* State for restartable multibyte character handling functions. */
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mbstate_t mbstate;
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/* We have to save the original argument pointer. */
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va_list ap_save;
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||
/* Count number of specifiers we already processed. */
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int nspecs_done;
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/* This table maps a character into a number representing a
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class. In each step there is a destination label for each
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class. */
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static const int jump_table[] =
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{
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/* ' ' */ 1, 0, 0, /* '#' */ 4,
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0, /* '%' */ 14, 0, /* '\''*/ 6,
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0, 0, /* '*' */ 7, /* '+' */ 2,
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0, /* '-' */ 3, /* '.' */ 9, 0,
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/* '0' */ 5, /* '1' */ 8, /* '2' */ 8, /* '3' */ 8,
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/* '4' */ 8, /* '5' */ 8, /* '6' */ 8, /* '7' */ 8,
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/* '8' */ 8, /* '9' */ 8, 0, 0,
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0, 0, 0, 0,
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0, 0, 0, 0,
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0, /* 'E' */ 19, 0, /* 'G' */ 19,
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0, 0, 0, 0,
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/* 'L' */ 12, 0, 0, 0,
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0, 0, 0, 0,
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0, 0, 0, 0,
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/* 'X' */ 18, 0, /* 'Z' */ 13, 0,
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0, 0, 0, 0,
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0, 0, 0, /* 'c' */ 20,
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/* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
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/* 'h' */ 10, /* 'i' */ 15, 0, 0,
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/* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
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/* 'p' */ 22, /* 'q' */ 12, 0, /* 's' */ 21,
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0, /* 'u' */ 16, 0, 0,
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/* 'x' */ 18
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};
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#define NOT_IN_JUMP_RANGE(Ch) ((Ch) < ' ' || (Ch) > 'x')
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#define CHAR_CLASS(Ch) (jump_table[(int) (Ch) - ' '])
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#define JUMP(ChExpr, table) \
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do \
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{ \
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const void *ptr; \
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spec = (ChExpr); \
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ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
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: table[CHAR_CLASS (spec)]; \
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goto *ptr; \
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} \
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while (0)
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#define STEP0_3_TABLE \
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/* Step 0: at the beginning. */ \
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static const void *step0_jumps[25] = \
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{ \
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REF (form_unknown), \
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REF (flag_space), /* for ' ' */ \
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REF (flag_plus), /* for '+' */ \
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REF (flag_minus), /* for '-' */ \
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REF (flag_hash), /* for '<hash>' */ \
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||
REF (flag_zero), /* for '0' */ \
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||
REF (flag_quote), /* for '\'' */ \
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||
REF (width_asterics), /* for '*' */ \
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||
REF (width), /* for '1'...'9' */ \
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||
REF (precision), /* for '.' */ \
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||
REF (mod_half), /* for 'h' */ \
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||
REF (mod_long), /* for 'l' */ \
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REF (mod_longlong), /* for 'L', 'q' */ \
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REF (mod_size_t), /* for 'Z' */ \
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||
REF (form_percent), /* for '%' */ \
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||
REF (form_integer), /* for 'd', 'i' */ \
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REF (form_unsigned), /* for 'u' */ \
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||
REF (form_octal), /* for 'o' */ \
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||
REF (form_hexa), /* for 'X', 'x' */ \
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||
REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
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||
REF (form_character), /* for 'c' */ \
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||
REF (form_string), /* for 's' */ \
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||
REF (form_pointer), /* for 'p' */ \
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||
REF (form_number), /* for 'n' */ \
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||
REF (form_strerror) /* for 'm' */ \
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||
}; \
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||
/* Step 1: after processing width. */ \
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static const void *step1_jumps[25] = \
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{ \
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||
REF (form_unknown), \
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||
REF (form_unknown), /* for ' ' */ \
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||
REF (form_unknown), /* for '+' */ \
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||
REF (form_unknown), /* for '-' */ \
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||
REF (form_unknown), /* for '<hash>' */ \
|
||
REF (form_unknown), /* for '0' */ \
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||
REF (form_unknown), /* for '\'' */ \
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||
REF (form_unknown), /* for '*' */ \
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||
REF (form_unknown), /* for '1'...'9' */ \
|
||
REF (precision), /* for '.' */ \
|
||
REF (mod_half), /* for 'h' */ \
|
||
REF (mod_long), /* for 'l' */ \
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||
REF (mod_longlong), /* for 'L', 'q' */ \
|
||
REF (mod_size_t), /* for 'Z' */ \
|
||
REF (form_percent), /* for '%' */ \
|
||
REF (form_integer), /* for 'd', 'i' */ \
|
||
REF (form_unsigned), /* for 'u' */ \
|
||
REF (form_octal), /* for 'o' */ \
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||
REF (form_hexa), /* for 'X', 'x' */ \
|
||
REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
|
||
REF (form_character), /* for 'c' */ \
|
||
REF (form_string), /* for 's' */ \
|
||
REF (form_pointer), /* for 'p' */ \
|
||
REF (form_number), /* for 'n' */ \
|
||
REF (form_strerror) /* for 'm' */ \
|
||
}; \
|
||
/* Step 2: after processing precision. */ \
|
||
static const void *step2_jumps[25] = \
|
||
{ \
|
||
REF (form_unknown), \
|
||
REF (form_unknown), /* for ' ' */ \
|
||
REF (form_unknown), /* for '+' */ \
|
||
REF (form_unknown), /* for '-' */ \
|
||
REF (form_unknown), /* for '<hash>' */ \
|
||
REF (form_unknown), /* for '0' */ \
|
||
REF (form_unknown), /* for '\'' */ \
|
||
REF (form_unknown), /* for '*' */ \
|
||
REF (form_unknown), /* for '1'...'9' */ \
|
||
REF (form_unknown), /* for '.' */ \
|
||
REF (mod_half), /* for 'h' */ \
|
||
REF (mod_long), /* for 'l' */ \
|
||
REF (mod_longlong), /* for 'L', 'q' */ \
|
||
REF (mod_size_t), /* for 'Z' */ \
|
||
REF (form_percent), /* for '%' */ \
|
||
REF (form_integer), /* for 'd', 'i' */ \
|
||
REF (form_unsigned), /* for 'u' */ \
|
||
REF (form_octal), /* for 'o' */ \
|
||
REF (form_hexa), /* for 'X', 'x' */ \
|
||
REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
|
||
REF (form_character), /* for 'c' */ \
|
||
REF (form_string), /* for 's' */ \
|
||
REF (form_pointer), /* for 'p' */ \
|
||
REF (form_number), /* for 'n' */ \
|
||
REF (form_strerror) /* for 'm' */ \
|
||
}; \
|
||
/* Step 3: after processing first 'l' modifier. */ \
|
||
static const void *step3_jumps[25] = \
|
||
{ \
|
||
REF (form_unknown), \
|
||
REF (form_unknown), /* for ' ' */ \
|
||
REF (form_unknown), /* for '+' */ \
|
||
REF (form_unknown), /* for '-' */ \
|
||
REF (form_unknown), /* for '<hash>' */ \
|
||
REF (form_unknown), /* for '0' */ \
|
||
REF (form_unknown), /* for '\'' */ \
|
||
REF (form_unknown), /* for '*' */ \
|
||
REF (form_unknown), /* for '1'...'9' */ \
|
||
REF (form_unknown), /* for '.' */ \
|
||
REF (form_unknown), /* for 'h' */ \
|
||
REF (mod_longlong), /* for 'l' */ \
|
||
REF (form_unknown), /* for 'L', 'q' */ \
|
||
REF (form_unknown), /* for 'Z' */ \
|
||
REF (form_percent), /* for '%' */ \
|
||
REF (form_integer), /* for 'd', 'i' */ \
|
||
REF (form_unsigned), /* for 'u' */ \
|
||
REF (form_octal), /* for 'o' */ \
|
||
REF (form_hexa), /* for 'X', 'x' */ \
|
||
REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
|
||
REF (form_character), /* for 'c' */ \
|
||
REF (form_string), /* for 's' */ \
|
||
REF (form_pointer), /* for 'p' */ \
|
||
REF (form_number), /* for 'n' */ \
|
||
REF (form_strerror) /* for 'm' */ \
|
||
}
|
||
|
||
#define STEP4_TABLE \
|
||
/* Step 4: processing format specifier. */ \
|
||
static const void *step4_jumps[25] = \
|
||
{ \
|
||
REF (form_unknown), \
|
||
REF (form_unknown), /* for ' ' */ \
|
||
REF (form_unknown), /* for '+' */ \
|
||
REF (form_unknown), /* for '-' */ \
|
||
REF (form_unknown), /* for '<hash>' */ \
|
||
REF (form_unknown), /* for '0' */ \
|
||
REF (form_unknown), /* for '\'' */ \
|
||
REF (form_unknown), /* for '*' */ \
|
||
REF (form_unknown), /* for '1'...'9' */ \
|
||
REF (form_unknown), /* for '.' */ \
|
||
REF (form_unknown), /* for 'h' */ \
|
||
REF (form_unknown), /* for 'l' */ \
|
||
REF (form_unknown), /* for 'L', 'q' */ \
|
||
REF (form_unknown), /* for 'Z' */ \
|
||
REF (form_percent), /* for '%' */ \
|
||
REF (form_integer), /* for 'd', 'i' */ \
|
||
REF (form_unsigned), /* for 'u' */ \
|
||
REF (form_octal), /* for 'o' */ \
|
||
REF (form_hexa), /* for 'X', 'x' */ \
|
||
REF (form_float), /* for 'E', 'e', 'f', 'G', 'g' */ \
|
||
REF (form_character), /* for 'c' */ \
|
||
REF (form_string), /* for 's' */ \
|
||
REF (form_pointer), /* for 'p' */ \
|
||
REF (form_number), /* for 'n' */ \
|
||
REF (form_strerror) /* for 'm' */ \
|
||
}
|
||
|
||
|
||
#define process_arg(fspec) \
|
||
/* Start real work. We know about all flag and modifiers and \
|
||
now process the wanted format specifier. */ \
|
||
LABEL (form_percent): \
|
||
/* Write a literal "%". */ \
|
||
outchar ('%'); \
|
||
break; \
|
||
\
|
||
LABEL (form_integer): \
|
||
/* Signed decimal integer. */ \
|
||
base = 10; \
|
||
\
|
||
if (is_longlong) \
|
||
{ \
|
||
long long int signed_number; \
|
||
\
|
||
signed_number = va_arg (ap, long long int); \
|
||
\
|
||
is_negative = signed_number < 0; \
|
||
number.longlong = is_negative ? (- signed_number) : signed_number; \
|
||
\
|
||
goto LABEL (longlong_number); \
|
||
} \
|
||
else \
|
||
{ \
|
||
long int signed_number; \
|
||
\
|
||
if (is_long) \
|
||
signed_number = va_arg (ap, long int); \
|
||
else /* `short int' will be promoted to `int'. */ \
|
||
signed_number = va_arg (ap, int); \
|
||
\
|
||
is_negative = signed_number < 0; \
|
||
number.word = is_negative ? (- signed_number) : signed_number; \
|
||
\
|
||
goto LABEL (number); \
|
||
} \
|
||
/* NOTREACHED */ \
|
||
\
|
||
LABEL (form_unsigned): \
|
||
/* Unsigned decimal integer. */ \
|
||
base = 10; \
|
||
goto LABEL (unsigned_number); \
|
||
/* NOTREACHED */ \
|
||
\
|
||
LABEL (form_octal): \
|
||
/* Unsigned octal integer. */ \
|
||
base = 8; \
|
||
goto LABEL (unsigned_number); \
|
||
/* NOTREACHED */ \
|
||
\
|
||
LABEL (form_hexa): \
|
||
/* Unsigned hexadecimal integer. */ \
|
||
base = 16; \
|
||
\
|
||
LABEL (unsigned_number): /* Unsigned number of base BASE. */ \
|
||
\
|
||
/* ANSI specifies the `+' and ` ' flags only for signed \
|
||
conversions. */ \
|
||
is_negative = 0; \
|
||
showsign = 0; \
|
||
space = 0; \
|
||
\
|
||
if (is_longlong) \
|
||
{ \
|
||
number.longlong = va_arg (ap, unsigned long long int); \
|
||
\
|
||
LABEL (longlong_number): \
|
||
if (prec < 0) \
|
||
/* Supply a default precision if none was given. */ \
|
||
prec = 1; \
|
||
else \
|
||
/* We have to take care for the '0' flag. If a precision \
|
||
is given it must be ignored. */ \
|
||
pad = ' '; \
|
||
\
|
||
/* If the precision is 0 and the number is 0 nothing has to \
|
||
be written for the number. */ \
|
||
if (prec == 0 && number.longlong == 0) \
|
||
string = workend; \
|
||
else \
|
||
{ \
|
||
/* Put the number in WORK. */ \
|
||
string = _itoa (number.longlong, workend + 1, base, \
|
||
spec == 'X'); \
|
||
string -= 1; \
|
||
if (group && grouping) \
|
||
string = group_number (string, workend, grouping, \
|
||
thousands_sep); \
|
||
} \
|
||
/* Simply further test for num != 0. */ \
|
||
number.word = number.longlong != 0; \
|
||
} \
|
||
else \
|
||
{ \
|
||
if (is_long) \
|
||
number.word = va_arg (ap, unsigned long int); \
|
||
else \
|
||
number.word = va_arg (ap, unsigned int); /* Promoted. */ \
|
||
\
|
||
LABEL (number): \
|
||
if (prec < 0) \
|
||
/* Supply a default precision if none was given. */ \
|
||
prec = 1; \
|
||
else \
|
||
/* We have to take care for the '0' flag. If a precision \
|
||
is given it must be ignored. */ \
|
||
pad = ' '; \
|
||
\
|
||
/* If the precision is 0 and the number is 0 nothing has to \
|
||
be written for the number. */ \
|
||
if (prec == 0 && number.word == 0) \
|
||
string = workend; \
|
||
else \
|
||
{ \
|
||
/* Put the number in WORK. */ \
|
||
string = _itoa_word (number.word, workend + 1, base, \
|
||
spec == 'X'); \
|
||
string -= 1; \
|
||
if (group && grouping) \
|
||
string = group_number (string, workend, grouping, \
|
||
thousands_sep); \
|
||
} \
|
||
} \
|
||
\
|
||
prec -= workend - string; \
|
||
\
|
||
if (prec > 0) \
|
||
/* Add zeros to the precision. */ \
|
||
while (prec-- > 0) \
|
||
*string-- = '0'; \
|
||
else if (number.word != 0 && alt && base == 8) \
|
||
/* Add octal marker. */ \
|
||
*string-- = '0'; \
|
||
\
|
||
if (!left) \
|
||
{ \
|
||
width -= workend - string; \
|
||
\
|
||
if (number.word != 0 && alt && base == 16) \
|
||
/* Account for 0X hex marker. */ \
|
||
width -= 2; \
|
||
\
|
||
if (is_negative || showsign || space) \
|
||
--width; \
|
||
\
|
||
if (pad == '0') \
|
||
{ \
|
||
while (width-- > 0) \
|
||
*string-- = '0'; \
|
||
\
|
||
if (number.word != 0 && alt && base == 16) \
|
||
{ \
|
||
*string-- = spec; \
|
||
*string-- = '0'; \
|
||
} \
|
||
\
|
||
if (is_negative) \
|
||
*string-- = '-'; \
|
||
else if (showsign) \
|
||
*string-- = '+'; \
|
||
else if (space) \
|
||
*string-- = ' '; \
|
||
} \
|
||
else \
|
||
{ \
|
||
if (number.word != 0 && alt && base == 16) \
|
||
{ \
|
||
*string-- = spec; \
|
||
*string-- = '0'; \
|
||
} \
|
||
\
|
||
if (is_negative) \
|
||
*string-- = '-'; \
|
||
else if (showsign) \
|
||
*string-- = '+'; \
|
||
else if (space) \
|
||
*string-- = ' '; \
|
||
\
|
||
while (width-- > 0) \
|
||
*string-- = ' '; \
|
||
} \
|
||
\
|
||
outstring (string + 1, workend - string); \
|
||
\
|
||
break; \
|
||
} \
|
||
else \
|
||
{ \
|
||
if (number.word != 0 && alt && base == 16) \
|
||
{ \
|
||
*string-- = spec; \
|
||
*string-- = '0'; \
|
||
} \
|
||
\
|
||
if (is_negative) \
|
||
*string-- = '-'; \
|
||
else if (showsign) \
|
||
*string-- = '+'; \
|
||
else if (space) \
|
||
*string-- = ' '; \
|
||
\
|
||
width -= workend - string; \
|
||
outstring (string + 1, workend - string); \
|
||
\
|
||
PAD (' '); \
|
||
break; \
|
||
} \
|
||
\
|
||
LABEL (form_float): \
|
||
{ \
|
||
/* Floating-point number. This is handled by printf_fp.c. */ \
|
||
extern int __printf_fp __P ((FILE *, const struct printf_info *, \
|
||
const void **const)); \
|
||
const void *ptr; \
|
||
int function_done; \
|
||
\
|
||
if (is_long_double) \
|
||
the_arg.pa_long_double = va_arg (ap, long double); \
|
||
else \
|
||
the_arg.pa_double = va_arg (ap, double); \
|
||
\
|
||
ptr = (const void *) &the_arg; \
|
||
\
|
||
if (fspec == NULL) \
|
||
{ \
|
||
struct printf_info info = { prec: prec, \
|
||
width: width, \
|
||
spec: spec, \
|
||
is_long_double: is_long_double, \
|
||
is_short: is_short, \
|
||
is_long: is_long, \
|
||
alt: alt, \
|
||
space: space, \
|
||
left: left, \
|
||
showsign: showsign, \
|
||
group: group, \
|
||
pad: pad }; \
|
||
\
|
||
function_done = __printf_fp (s, &info, &ptr); \
|
||
} \
|
||
else \
|
||
function_done = __printf_fp (s, &fspec->info, &ptr); \
|
||
\
|
||
if (function_done < 0) \
|
||
/* Error in print handler. */ \
|
||
return -1; \
|
||
\
|
||
done += function_done; \
|
||
} \
|
||
break; \
|
||
\
|
||
LABEL (form_character): \
|
||
/* Character. */ \
|
||
--width; /* Account for the character itself. */ \
|
||
if (!left) \
|
||
PAD (' '); \
|
||
outchar ((unsigned char) va_arg (ap, int)); /* Promoted. */ \
|
||
if (left) \
|
||
PAD (' '); \
|
||
break; \
|
||
\
|
||
LABEL (form_string): \
|
||
{ \
|
||
size_t len; \
|
||
\
|
||
/* The string argument could in fact be `char *' or `wchar_t *'. \
|
||
But this should not make a difference here. */ \
|
||
string = (char *) va_arg (ap, const char *); \
|
||
\
|
||
/* Entry point for printing other strings. */ \
|
||
LABEL (print_string): \
|
||
\
|
||
if (string == NULL) \
|
||
{ \
|
||
/* Write "(null)" if there's space. */ \
|
||
if (prec == -1 || prec >= (int) sizeof (null) - 1) \
|
||
{ \
|
||
string = (char *) null; \
|
||
len = sizeof (null) - 1; \
|
||
} \
|
||
else \
|
||
{ \
|
||
string = (char *) ""; \
|
||
len = 0; \
|
||
} \
|
||
} \
|
||
else if (!is_long) \
|
||
{ \
|
||
if (prec != -1) \
|
||
{ \
|
||
/* Search for the end of the string, but don't search past \
|
||
the length specified by the precision. */ \
|
||
const char *end = memchr (string, '\0', prec); \
|
||
if (end) \
|
||
len = end - string; \
|
||
else \
|
||
len = prec; \
|
||
} \
|
||
else \
|
||
len = strlen (string); \
|
||
} \
|
||
else \
|
||
{ \
|
||
const wchar_t *s2 = (const wchar_t *) string; \
|
||
mbstate_t mbstate = 0; \
|
||
\
|
||
len = wcsrtombs (NULL, &s2, prec != -1 ? prec : UINT_MAX, \
|
||
&mbstate); \
|
||
if (len == (size_t) -1) \
|
||
/* Illegal wide-character string. */ \
|
||
return -1; \
|
||
\
|
||
s2 = (const wchar_t *) string; \
|
||
mbstate = 0; \
|
||
string = alloca (len + 1); \
|
||
(void) wcsrtombs (string, &s2, prec != -1 ? prec : UINT_MAX, \
|
||
&mbstate); \
|
||
} \
|
||
\
|
||
if ((width -= len) < 0) \
|
||
{ \
|
||
outstring (string, len); \
|
||
break; \
|
||
} \
|
||
\
|
||
if (!left) \
|
||
PAD (' '); \
|
||
outstring (string, len); \
|
||
if (left) \
|
||
PAD (' '); \
|
||
} \
|
||
break; \
|
||
\
|
||
LABEL (form_pointer): \
|
||
/* Generic pointer. */ \
|
||
{ \
|
||
const void *ptr; \
|
||
ptr = va_arg (ap, void *); \
|
||
if (ptr != NULL) \
|
||
{ \
|
||
/* If the pointer is not NULL, write it as a %#x spec. */ \
|
||
base = 16; \
|
||
number.word = (unsigned long int) ptr; \
|
||
is_negative = 0; \
|
||
alt = 1; \
|
||
group = 0; \
|
||
spec = 'x'; \
|
||
goto LABEL (number); \
|
||
} \
|
||
else \
|
||
{ \
|
||
/* Write "(nil)" for a nil pointer. */ \
|
||
string = (char *) "(nil)"; \
|
||
/* Make sure the full string "(nil)" is printed. */ \
|
||
if (prec < 5) \
|
||
prec = 5; \
|
||
is_long = 0; /* This is no wide-char string. */ \
|
||
goto LABEL (print_string); \
|
||
} \
|
||
} \
|
||
/* NOTREACHED */ \
|
||
\
|
||
LABEL (form_number): \
|
||
/* Answer the count of characters written. */ \
|
||
if (is_longlong) \
|
||
*(long long int *) va_arg (ap, void *) = done; \
|
||
else if (is_long) \
|
||
*(long int *) va_arg (ap, void *) = done; \
|
||
else if (!is_short) \
|
||
*(int *) va_arg (ap, void *) = done; \
|
||
else \
|
||
*(short int *) va_arg (ap, void *) = done; \
|
||
break; \
|
||
\
|
||
LABEL (form_strerror): \
|
||
/* Print description of error ERRNO. */ \
|
||
{ \
|
||
extern char *_strerror_internal __P ((int, char *buf, size_t)); \
|
||
\
|
||
string = (char *) \
|
||
_strerror_internal (errno, work_buffer, sizeof work_buffer); \
|
||
} \
|
||
is_long = 0; /* This is no wide-char string. */ \
|
||
goto LABEL (print_string)
|
||
|
||
|
||
/* Sanity check of arguments. */
|
||
ARGCHECK (s, format);
|
||
|
||
if (UNBUFFERED_P (s))
|
||
/* Use a helper function which will allocate a local temporary buffer
|
||
for the stream and then call us again. */
|
||
return buffered_vfprintf (s, format, ap);
|
||
|
||
/* Initialize local variables. */
|
||
done = 0;
|
||
grouping = (const char *) -1;
|
||
mbstate = 0;
|
||
ap_save = ap;
|
||
nspecs_done = 0;
|
||
|
||
/* Find the first format specifier. */
|
||
f = lead_str_end = find_spec (format, &mbstate);
|
||
|
||
/* Lock stream. */
|
||
flockfile (s);
|
||
|
||
/* Write the literal text before the first format. */
|
||
outstring ((const UCHAR_T *) format,
|
||
lead_str_end - (const UCHAR_T *) format);
|
||
|
||
/* If we only have to print a simple string, return now. */
|
||
if (*f == L_('\0'))
|
||
{
|
||
funlockfile (s);
|
||
return done;
|
||
}
|
||
|
||
/* Process whole format string. */
|
||
do
|
||
{
|
||
#define REF(Name) &&do_##Name
|
||
#define LABEL(Name) do_##Name
|
||
STEP0_3_TABLE;
|
||
STEP4_TABLE;
|
||
|
||
int is_negative; /* Flag for negative number. */
|
||
union
|
||
{
|
||
unsigned long long int longlong;
|
||
unsigned long int word;
|
||
} number;
|
||
int base;
|
||
union printf_arg the_arg;
|
||
char *string; /* Pointer to argument string. */
|
||
int alt = 0; /* Alternate format. */
|
||
int space = 0; /* Use space prefix if no sign is needed. */
|
||
int left = 0; /* Left-justify output. */
|
||
int showsign = 0; /* Always begin with plus or minus sign. */
|
||
int group = 0; /* Print numbers according grouping rules. */
|
||
int is_long_double = 0; /* Argument is long double/ long long int. */
|
||
int is_short = 0; /* Argument is long int. */
|
||
int is_long = 0; /* Argument is short int. */
|
||
int width = 0; /* Width of output; 0 means none specified. */
|
||
int prec = -1; /* Precision of output; -1 means none specified. */
|
||
char pad = ' '; /* Padding character. */
|
||
CHAR_T spec;
|
||
|
||
/* Get current character in format string. */
|
||
JUMP (*++f, step0_jumps);
|
||
|
||
/* ' ' flag. */
|
||
LABEL (flag_space):
|
||
space = 1;
|
||
JUMP (*++f, step0_jumps);
|
||
|
||
/* '+' flag. */
|
||
LABEL (flag_plus):
|
||
showsign = 1;
|
||
JUMP (*++f, step0_jumps);
|
||
|
||
/* The '-' flag. */
|
||
LABEL (flag_minus):
|
||
left = 1;
|
||
pad = L_(' ');
|
||
JUMP (*++f, step0_jumps);
|
||
|
||
/* The '#' flag. */
|
||
LABEL (flag_hash):
|
||
alt = 1;
|
||
JUMP (*++f, step0_jumps);
|
||
|
||
/* The '0' flag. */
|
||
LABEL (flag_zero):
|
||
if (!left)
|
||
pad = L_('0');
|
||
JUMP (*++f, step0_jumps);
|
||
|
||
/* The '\'' flag. */
|
||
LABEL (flag_quote):
|
||
group = 1;
|
||
|
||
/* XXX Completely wrong. Use wctob. */
|
||
if (grouping == (const char *) -1)
|
||
{
|
||
/* Figure out the thousands separator character. */
|
||
if (mbtowc (&thousands_sep,
|
||
_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
|
||
strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP))) <= 0)
|
||
thousands_sep = (wchar_t)
|
||
*_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
|
||
grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
|
||
if (*grouping == '\0' || *grouping == CHAR_MAX
|
||
|| thousands_sep == L'\0')
|
||
grouping = NULL;
|
||
}
|
||
JUMP (*++f, step0_jumps);
|
||
|
||
/* Get width from argument. */
|
||
LABEL (width_asterics):
|
||
{
|
||
const UCHAR_T *tmp; /* Temporary value. */
|
||
|
||
tmp = ++f;
|
||
if (ISDIGIT (*tmp) && read_int (&tmp) && *tmp == L_('$'))
|
||
/* The width comes from a positional parameter. */
|
||
goto do_positional;
|
||
|
||
width = va_arg (ap, int);
|
||
|
||
/* Negative width means left justified. */
|
||
if (width < 0)
|
||
{
|
||
width = -width;
|
||
pad = L_(' ');
|
||
left = 1;
|
||
}
|
||
}
|
||
JUMP (*f, step1_jumps);
|
||
|
||
/* Given width in format string. */
|
||
LABEL (width):
|
||
width = read_int (&f);
|
||
if (*f == L_('$'))
|
||
/* Oh, oh. The argument comes from a positional parameter. */
|
||
goto do_positional;
|
||
JUMP (*f, step1_jumps);
|
||
|
||
LABEL (precision):
|
||
++f;
|
||
if (*f == L_('*'))
|
||
{
|
||
const UCHAR_T *tmp; /* Temporary value. */
|
||
|
||
tmp = ++f;
|
||
if (ISDIGIT (*tmp) && read_int (&tmp) > 0 && *tmp == L_('$'))
|
||
/* The precision comes from a positional parameter. */
|
||
goto do_positional;
|
||
|
||
prec = va_arg (ap, int);
|
||
|
||
/* If the precision is negative the precision is omitted. */
|
||
if (prec < 0)
|
||
prec = -1;
|
||
}
|
||
else if (ISDIGIT (*f))
|
||
prec = read_int (&f);
|
||
else
|
||
prec = 0;
|
||
JUMP (*f, step2_jumps);
|
||
|
||
/* Process 'h' modifier. No other modifier is allowed to
|
||
follow. */
|
||
LABEL (mod_half):
|
||
is_short = 1;
|
||
JUMP (*++f, step4_jumps);
|
||
|
||
/* Process 'l' modifier. There might another 'l' follow. */
|
||
LABEL (mod_long):
|
||
is_long = 1;
|
||
JUMP (*++f, step3_jumps);
|
||
|
||
/* Process 'L', 'q', or 'll' modifier. No other modifier is
|
||
allowed to follow. */
|
||
LABEL (mod_longlong):
|
||
is_long_double = 1;
|
||
JUMP (*++f, step4_jumps);
|
||
|
||
LABEL (mod_size_t):
|
||
is_longlong = sizeof (size_t) > sizeof (unsigned long int);
|
||
is_long = sizeof (size_t) > sizeof (unsigned int);
|
||
JUMP (*++f, step4_jumps);
|
||
|
||
|
||
/* Process current format. */
|
||
while (1)
|
||
{
|
||
process_arg (((struct printf_spec *) NULL));
|
||
|
||
LABEL (form_unknown):
|
||
if (spec == L_('\0'))
|
||
{
|
||
/* The format string ended before the specifier is complete. */
|
||
funlockfile (s);
|
||
return -1;
|
||
}
|
||
|
||
/* If we are in the fast loop force entering the complicated
|
||
one. */
|
||
goto do_positional;
|
||
}
|
||
|
||
/* Look for next format specifier. */
|
||
f = find_spec ((end_of_spec = ++f), &mbstate);
|
||
|
||
/* Write the following constant string. */
|
||
outstring (end_of_spec, f - end_of_spec);
|
||
}
|
||
while (*f != L_('\0'));
|
||
|
||
/* Unlock stream. */
|
||
funlockfile (s);
|
||
|
||
/* We processed the whole format without any positional parameters. */
|
||
return done;
|
||
|
||
/* Here starts the more complex loop to handle positional parameters. */
|
||
do_positional:
|
||
{
|
||
/* Array with information about the needed arguments. This has to
|
||
be dynamically extendable. */
|
||
size_t nspecs = 0;
|
||
size_t nspecs_max = 32; /* A more or less arbitrary start value. */
|
||
struct printf_spec *specs
|
||
= alloca (nspecs_max * sizeof (struct printf_spec));
|
||
|
||
/* The number of arguments the format string requests. This will
|
||
determine the size of the array needed to store the argument
|
||
attributes. */
|
||
size_t nargs = 0;
|
||
int *args_type;
|
||
union printf_arg *args_value;
|
||
|
||
/* Positional parameters refer to arguments directly. This could
|
||
also determine the maximum number of arguments. Track the
|
||
maximum number. */
|
||
size_t max_ref_arg = 0;
|
||
|
||
/* Just a counter. */
|
||
int cnt;
|
||
|
||
|
||
if (grouping == (const char *) -1)
|
||
{
|
||
/* XXX Use wctob. But this is incompatible for now. */
|
||
/* Figure out the thousands separator character. */
|
||
if (mbtowc (&thousands_sep,
|
||
_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
|
||
strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP))) <= 0)
|
||
thousands_sep = (wchar_t) *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
|
||
grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
|
||
if (*grouping == '\0' || *grouping == CHAR_MAX
|
||
|| thousands_sep == L'\0')
|
||
grouping = NULL;
|
||
}
|
||
|
||
for (f = lead_str_end; *f != '\0'; f = specs[nspecs++].next_fmt)
|
||
{
|
||
if (nspecs >= nspecs_max)
|
||
{
|
||
/* Extend the array of format specifiers. */
|
||
struct printf_spec *old = specs;
|
||
|
||
nspecs_max *= 2;
|
||
specs = alloca (nspecs_max * sizeof (struct printf_spec));
|
||
|
||
if (specs == &old[nspecs])
|
||
/* Stack grows up, OLD was the last thing allocated;
|
||
extend it. */
|
||
nspecs_max += nspecs_max / 2;
|
||
else
|
||
{
|
||
/* Copy the old array's elements to the new space. */
|
||
memcpy (specs, old, nspecs * sizeof (struct printf_spec));
|
||
if (old == &specs[nspecs])
|
||
/* Stack grows down, OLD was just below the new
|
||
SPECS. We can use that space when the new space
|
||
runs out. */
|
||
nspecs_max += nspecs_max / 2;
|
||
}
|
||
}
|
||
|
||
/* Parse the format specifier. */
|
||
nargs += parse_one_spec (f, nargs, &specs[nspecs], &max_ref_arg, NULL);
|
||
}
|
||
|
||
/* Determine the number of arguments the format string consumes. */
|
||
nargs = MAX (nargs, max_ref_arg);
|
||
|
||
/* Allocate memory for the argument descriptions. */
|
||
args_type = alloca (nargs * sizeof (int));
|
||
memset (args_type, 0, nargs * sizeof (int));
|
||
args_value = alloca (nargs * sizeof (union printf_arg));
|
||
|
||
/* XXX Could do sanity check here: If any element in ARGS_TYPE is
|
||
still zero after this loop, format is invalid. For now we
|
||
simply use 0 as the value. */
|
||
|
||
/* Fill in the types of all the arguments. */
|
||
for (cnt = 0; cnt < nspecs; ++cnt)
|
||
{
|
||
/* If the width is determined by an argument this is an int. */
|
||
if (specs[cnt].width_arg != -1)
|
||
args_type[specs[cnt].width_arg] = PA_INT;
|
||
|
||
/* If the precision is determined by an argument this is an int. */
|
||
if (specs[cnt].prec_arg != -1)
|
||
args_type[specs[cnt].prec_arg] = PA_INT;
|
||
|
||
switch (specs[cnt].ndata_args)
|
||
{
|
||
case 0: /* No arguments. */
|
||
break;
|
||
case 1: /* One argument; we already have the type. */
|
||
args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
|
||
break;
|
||
default:
|
||
/* We have more than one argument for this format spec.
|
||
We must call the arginfo function again to determine
|
||
all the types. */
|
||
(void) (*__printf_arginfo_table[specs[cnt].info.spec])
|
||
(&specs[cnt].info,
|
||
specs[cnt].ndata_args, &args_type[specs[cnt].data_arg]);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Now we know all the types and the order. Fill in the argument
|
||
values. */
|
||
for (cnt = 0, ap = ap_save; cnt < nargs; ++cnt)
|
||
switch (args_type[cnt])
|
||
{
|
||
#define T(tag, mem, type) \
|
||
case tag: \
|
||
args_value[cnt].mem = va_arg (ap, type); \
|
||
break
|
||
|
||
T (PA_CHAR, pa_char, int); /* Promoted. */
|
||
T (PA_INT|PA_FLAG_SHORT, pa_short_int, int); /* Promoted. */
|
||
T (PA_INT, pa_int, int);
|
||
T (PA_INT|PA_FLAG_LONG, pa_long_int, long int);
|
||
T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
|
||
T (PA_FLOAT, pa_float, double); /* Promoted. */
|
||
T (PA_DOUBLE, pa_double, double);
|
||
T (PA_DOUBLE|PA_FLAG_LONG_DOUBLE, pa_long_double, long double);
|
||
T (PA_STRING, pa_string, const char *);
|
||
T (PA_POINTER, pa_pointer, void *);
|
||
#undef T
|
||
default:
|
||
if ((args_type[cnt] & PA_FLAG_PTR) != 0)
|
||
args_value[cnt].pa_pointer = va_arg (ap, void *);
|
||
else
|
||
args_value[cnt].pa_long_double = 0.0;
|
||
break;
|
||
}
|
||
|
||
/* Now walk through all format specifiers and process them. */
|
||
for (; nspecs_done < nspecs; ++nspecs_done)
|
||
{
|
||
#undef REF
|
||
#define REF(Name) &&do2_##Name
|
||
#undef LABEL
|
||
#define LABEL(Name) do2_##Name
|
||
STEP4_TABLE;
|
||
|
||
int is_negative;
|
||
union
|
||
{
|
||
unsigned long long int longlong;
|
||
unsigned long int word;
|
||
} number;
|
||
int base;
|
||
union printf_arg the_arg;
|
||
char *string; /* Pointer to argument string. */
|
||
|
||
/* Fill variables from values in struct. */
|
||
int alt = specs[nspecs_done].info.alt;
|
||
int space = specs[nspecs_done].info.space;
|
||
int left = specs[nspecs_done].info.left;
|
||
int showsign = specs[nspecs_done].info.showsign;
|
||
int group = specs[nspecs_done].info.group;
|
||
int is_long_double = specs[nspecs_done].info.is_long_double;
|
||
int is_short = specs[nspecs_done].info.is_short;
|
||
int is_long = specs[nspecs_done].info.is_long;
|
||
int width = specs[nspecs_done].info.width;
|
||
int prec = specs[nspecs_done].info.prec;
|
||
char pad = specs[nspecs_done].info.pad;
|
||
CHAR_T spec = specs[nspecs_done].info.spec;
|
||
|
||
/* Fill in last information. */
|
||
if (specs[nspecs_done].width_arg != -1)
|
||
{
|
||
/* Extract the field width from an argument. */
|
||
specs[nspecs_done].info.width =
|
||
args_value[specs[nspecs_done].width_arg].pa_int;
|
||
|
||
if (specs[nspecs_done].info.width < 0)
|
||
/* If the width value is negative left justification is
|
||
selected and the value is taken as being positive. */
|
||
{
|
||
specs[nspecs_done].info.width *= -1;
|
||
left = specs[nspecs_done].info.left = 1;
|
||
}
|
||
width = specs[nspecs_done].info.width;
|
||
}
|
||
|
||
if (specs[nspecs_done].prec_arg != -1)
|
||
{
|
||
/* Extract the precision from an argument. */
|
||
specs[nspecs_done].info.prec =
|
||
args_value[specs[nspecs_done].prec_arg].pa_int;
|
||
|
||
if (specs[nspecs_done].info.prec < 0)
|
||
/* If the precision is negative the precision is
|
||
omitted. */
|
||
specs[nspecs_done].info.prec = -1;
|
||
|
||
prec = specs[nspecs_done].info.prec;
|
||
}
|
||
|
||
/* Process format specifiers. */
|
||
while (1)
|
||
{
|
||
JUMP (spec, step4_jumps);
|
||
|
||
process_arg ((&specs[nspecs_done]));
|
||
|
||
LABEL (form_unknown):
|
||
{
|
||
extern printf_function **__printf_function_table;
|
||
int function_done;
|
||
printf_function *function;
|
||
unsigned int i;
|
||
const void **ptr;
|
||
|
||
function =
|
||
(__printf_function_table == NULL ? NULL :
|
||
__printf_function_table[specs[nspecs_done].info.spec]);
|
||
|
||
if (function == NULL)
|
||
function = &printf_unknown;
|
||
|
||
ptr = alloca (specs[nspecs_done].ndata_args
|
||
* sizeof (const void *));
|
||
|
||
/* Fill in an array of pointers to the argument values. */
|
||
for (i = 0; i < specs[nspecs_done].ndata_args; ++i)
|
||
ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
|
||
|
||
/* Call the function. */
|
||
function_done = (*function) (s, &specs[nspecs_done].info, ptr);
|
||
|
||
/* If an error occured we don't have information about #
|
||
of chars. */
|
||
if (function_done < 0)
|
||
{
|
||
funlockfile (s);
|
||
return -1;
|
||
}
|
||
|
||
done += function_done;
|
||
}
|
||
break;
|
||
}
|
||
|
||
/* Write the following constant string. */
|
||
outstring (specs[nspecs_done].end_of_fmt,
|
||
specs[nspecs_done].next_fmt
|
||
- specs[nspecs_done].end_of_fmt);
|
||
}
|
||
}
|
||
|
||
/* Unlock the stream. */
|
||
funlockfile (s);
|
||
|
||
return done;
|
||
}
|
||
|
||
#ifdef USE_IN_LIBIO
|
||
# undef vfprintf
|
||
# ifdef strong_alias
|
||
/* This is for glibc. */
|
||
strong_alias (_IO_vfprintf, vfprintf);
|
||
# else
|
||
# if defined __ELF__ || defined __GNU_LIBRARY__
|
||
# include <gnu-stabs.h>
|
||
# ifdef weak_alias
|
||
weak_alias (_IO_vfprintf, vfprintf);
|
||
# endif
|
||
# endif
|
||
# endif
|
||
#endif
|
||
|
||
/* Handle an unknown format specifier. This prints out a canonicalized
|
||
representation of the format spec itself. */
|
||
static int
|
||
printf_unknown (FILE *s, const struct printf_info *info,
|
||
const void *const *args)
|
||
|
||
{
|
||
int done = 0;
|
||
char work_buffer[BUFSIZ];
|
||
register char *w;
|
||
|
||
outchar ('%');
|
||
|
||
if (info->alt)
|
||
outchar ('#');
|
||
if (info->group)
|
||
outchar ('\'');
|
||
if (info->showsign)
|
||
outchar ('+');
|
||
else if (info->space)
|
||
outchar (' ');
|
||
if (info->left)
|
||
outchar ('-');
|
||
if (info->pad == '0')
|
||
outchar ('0');
|
||
|
||
if (info->width != 0)
|
||
{
|
||
w = _itoa_word (info->width, workend + 1, 10, 0);
|
||
while (++w <= workend)
|
||
outchar (*w);
|
||
}
|
||
|
||
if (info->prec != -1)
|
||
{
|
||
outchar ('.');
|
||
w = _itoa_word (info->prec, workend + 1, 10, 0);
|
||
while (++w <= workend)
|
||
outchar (*w);
|
||
}
|
||
|
||
if (info->spec != '\0')
|
||
outchar (info->spec);
|
||
|
||
return done;
|
||
}
|
||
|
||
/* Group the digits according to the grouping rules of the current locale.
|
||
The interpretation of GROUPING is as in `struct lconv' from <locale.h>. */
|
||
static char *
|
||
group_number (CHAR_T *w, CHAR_T *rear_ptr, const CHAR_T *grouping,
|
||
wchar_t thousands_sep)
|
||
{
|
||
int len;
|
||
char *src, *s;
|
||
|
||
/* We treat all negative values like CHAR_MAX. */
|
||
|
||
if (*grouping == CHAR_MAX || *grouping < 0)
|
||
/* No grouping should be done. */
|
||
return w;
|
||
|
||
len = *grouping;
|
||
|
||
/* Copy existing string so that nothing gets overwritten. */
|
||
src = (char *) alloca (rear_ptr - w);
|
||
memcpy (src, w + 1, rear_ptr - w);
|
||
s = &src[rear_ptr - w - 1];
|
||
w = rear_ptr;
|
||
|
||
/* Process all characters in the string. */
|
||
while (s >= src)
|
||
{
|
||
*w-- = *s--;
|
||
|
||
if (--len == 0 && s >= src)
|
||
{
|
||
/* A new group begins. */
|
||
*w-- = thousands_sep;
|
||
|
||
len = *grouping++;
|
||
if (*grouping == '\0')
|
||
/* The previous grouping repeats ad infinitum. */
|
||
--grouping;
|
||
else if (*grouping == CHAR_MAX || *grouping < 0)
|
||
{
|
||
/* No further grouping to be done.
|
||
Copy the rest of the number. */
|
||
do
|
||
*w-- = *s--;
|
||
while (s >= src);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
return w;
|
||
}
|
||
|
||
#ifdef USE_IN_LIBIO
|
||
/* Helper "class" for `fprintf to unbuffered': creates a temporary buffer. */
|
||
struct helper_file
|
||
{
|
||
struct _IO_FILE_plus _f;
|
||
_IO_FILE *_put_stream;
|
||
};
|
||
|
||
static int
|
||
_IO_helper_overflow (_IO_FILE *s, int c)
|
||
{
|
||
_IO_FILE *target = ((struct helper_file*) s)->_put_stream;
|
||
int used = s->_IO_write_ptr - s->_IO_write_base;
|
||
if (used)
|
||
{
|
||
_IO_size_t written = _IO_sputn (target, s->_IO_write_base, used);
|
||
s->_IO_write_ptr -= written;
|
||
}
|
||
return PUTC (c, s);
|
||
}
|
||
|
||
static const struct _IO_jump_t _IO_helper_jumps =
|
||
{
|
||
JUMP_INIT_DUMMY,
|
||
JUMP_INIT (finish, _IO_default_finish),
|
||
JUMP_INIT (overflow, _IO_helper_overflow),
|
||
JUMP_INIT (underflow, _IO_default_underflow),
|
||
JUMP_INIT (uflow, _IO_default_uflow),
|
||
JUMP_INIT (pbackfail, _IO_default_pbackfail),
|
||
JUMP_INIT (xsputn, _IO_default_xsputn),
|
||
JUMP_INIT (xsgetn, _IO_default_xsgetn),
|
||
JUMP_INIT (seekoff, _IO_default_seekoff),
|
||
JUMP_INIT (seekpos, _IO_default_seekpos),
|
||
JUMP_INIT (setbuf, _IO_default_setbuf),
|
||
JUMP_INIT (sync, _IO_default_sync),
|
||
JUMP_INIT (doallocate, _IO_default_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)
|
||
};
|
||
|
||
static int
|
||
buffered_vfprintf (register _IO_FILE *s, const CHAR_T *format,
|
||
_IO_va_list args)
|
||
{
|
||
char buf[_IO_BUFSIZ];
|
||
struct helper_file helper;
|
||
register _IO_FILE *hp = (_IO_FILE *) &helper;
|
||
int result, to_flush;
|
||
|
||
/* Initialize helper. */
|
||
helper._put_stream = s;
|
||
hp->_IO_write_base = buf;
|
||
hp->_IO_write_ptr = buf;
|
||
hp->_IO_write_end = buf + sizeof buf;
|
||
hp->_IO_file_flags = _IO_MAGIC|_IO_NO_READS;
|
||
_IO_JUMPS (hp) = (struct _IO_jump_t *) &_IO_helper_jumps;
|
||
|
||
/* Now print to helper instead. */
|
||
result = _IO_vfprintf (hp, format, args);
|
||
|
||
/* Now flush anything from the helper to the S. */
|
||
if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0)
|
||
{
|
||
if (_IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush)
|
||
return -1;
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
#else /* !USE_IN_LIBIO */
|
||
|
||
static int
|
||
buffered_vfprintf (register FILE *s, const CHAR_T *format, va_list args)
|
||
{
|
||
char buf[BUFSIZ];
|
||
int result;
|
||
|
||
s->__bufp = s->__buffer = buf;
|
||
s->__bufsize = sizeof buf;
|
||
s->__put_limit = s->__buffer + s->__bufsize;
|
||
s->__get_limit = s->__buffer;
|
||
|
||
/* Now use buffer to print. */
|
||
result = vfprintf (s, format, args);
|
||
|
||
if (fflush (s) == EOF)
|
||
result = -1;
|
||
s->__buffer = s->__bufp = s->__get_limit = s->__put_limit = NULL;
|
||
s->__bufsize = 0;
|
||
|
||
return result;
|
||
}
|
||
|
||
/* Pads string with given number of a specified character.
|
||
This code is taken from iopadn.c of the GNU I/O library. */
|
||
#define PADSIZE 16
|
||
static const CHAR_T blanks[PADSIZE] =
|
||
{ L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '),
|
||
L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' ') };
|
||
static const CHAR_T zeroes[PADSIZE] =
|
||
{ L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'),
|
||
L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0') };
|
||
|
||
ssize_t
|
||
#ifndef COMPILE_WPRINTF
|
||
__printf_pad (FILE *s, char pad, size_t count)
|
||
#else
|
||
__wprintf_pad (FILE *s, wchar_t pad, size_t count)
|
||
#endif
|
||
{
|
||
const CHAR_T *padptr;
|
||
register size_t i;
|
||
|
||
padptr = pad == L_(' ') ? blanks : zeroes;
|
||
|
||
for (i = count; i >= PADSIZE; i -= PADSIZE)
|
||
if (PUT (s, padptr, PADSIZE) != PADSIZE)
|
||
return -1;
|
||
if (i > 0)
|
||
if (PUT (s, padptr, i) != i)
|
||
return -1;
|
||
|
||
return count;
|
||
}
|
||
#undef PADSIZE
|
||
#endif /* USE_IN_LIBIO */
|