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/include/printf.h

https://bitbucket.org/freebsd/freebsd-head/
C++ Header | 164 lines | 88 code | 25 blank | 51 comment | 0 complexity | 83ddb1533cba6c05b79384d44aef8d54 MD5 | raw file
  1/*-
  2 * Copyright (c) 2005 Poul-Henning Kamp
  3 * All rights reserved.
  4 *
  5 * Redistribution and use in source and binary forms, with or without
  6 * modification, are permitted provided that the following conditions
  7 * are met:
  8 * 1. Redistributions of source code must retain the above copyright
  9 *    notice, this list of conditions and the following disclaimer.
 10 * 2. Redistributions in binary form must reproduce the above copyright
 11 *    notice, this list of conditions and the following disclaimer in the
 12 *    documentation and/or other materials provided with the distribution.
 13 *
 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 24 * SUCH DAMAGE.
 25 *
 26 * $FreeBSD$
 27 */
 28
 29#ifndef _PRINTF_H_
 30#define _PRINTF_H_
 31
 32#include <stdio.h>
 33#include <wchar.h>
 34
 35/*
 36 * The API defined by glibc allows a renderer to take multiple arguments
 37 * This is obviously usable for things like (ptr+len) pairs etc.
 38 * But the do not actually provide support for it at the end of the day,
 39 * they offer only one argument to the arginfo function, but do accept
 40 * >1 returns, although the do not check the types of those arguments
 41 * argument
 42 * Be compatible for now.
 43 */
 44#define __PRINTFMAXARG		2
 45
 46struct printf_info {
 47	/* GLIBC compatible */
 48	int		prec;
 49	int		width;
 50	wchar_t		spec;
 51	unsigned 	is_long_double;
 52	unsigned 	is_char;
 53	unsigned	is_short;
 54	unsigned	is_long;
 55	unsigned	alt;
 56	unsigned	space;
 57	unsigned	left;
 58	unsigned	showsign;
 59	unsigned	group;
 60	unsigned	extra;
 61	unsigned	wide;
 62	wchar_t		pad;
 63
 64	/* FreeBSD extensions */
 65
 66	unsigned	is_quad;
 67	unsigned	is_intmax;
 68	unsigned	is_ptrdiff;
 69	unsigned	is_size;
 70
 71	/* private */
 72	int		sofar;
 73	unsigned	get_width;
 74	unsigned	get_prec;
 75	const char	*begin;
 76	const char	*end;
 77	void 		*arg[__PRINTFMAXARG];
 78};
 79
 80enum {
 81	PA_INT		= (1 << 0),	/* int */
 82	PA_CHAR		= (1 << 1),	/* int, cast to char */
 83	PA_WCHAR	= (1 << 2),	/* wide char */
 84	PA_STRING	= (1 << 3),	/* const char * (with '\0') */
 85	PA_WSTRING	= (1 << 4),	/* const wchar_t * */
 86	PA_POINTER	= (1 << 5),	/* void * */
 87	PA_FLOAT	= (1 << 6),	/* float */
 88	PA_DOUBLE	= (1 << 7) 	/* double */
 89};
 90
 91#define	PA_FLAG_MASK		0xff0000
 92#define	PA_FLAG_LONG_LONG	(1 << 16)
 93#define	PA_FLAG_LONG		(1 << 17)
 94#define	PA_FLAG_SHORT		(1 << 18)
 95#define	PA_FLAG_PTR		(1 << 19)
 96#define	PA_FLAG_QUAD		(1 << 20)
 97#define	PA_FLAG_INTMAX		(1 << 21)
 98#define	PA_FLAG_SIZE		(1 << 22)
 99#define	PA_FLAG_PTRDIFF		(1 << 23)
100#define	PA_FLAG_LONG_DOUBLE	PA_FLAG_LONG_LONG
101
102typedef int printf_arginfo_function(const struct printf_info *, size_t, int *);
103typedef int printf_function(FILE *, const struct printf_info *, const void *const *);
104
105/* FreeBSD extension */
106struct __printf_io;
107typedef int printf_render(struct __printf_io *, const struct printf_info *, const void *const *);
108
109/* vprintf.c */
110extern const char __lowercase_hex[17];
111extern const char __uppercase_hex[17];
112
113void __printf_flush(struct __printf_io *io);
114int __printf_puts(struct __printf_io *io, const void *ptr, int len);
115int __printf_pad(struct __printf_io *io, int n, int zero);
116int __printf_out(struct __printf_io *io, const struct printf_info *pi, const void *ptr, int len);
117
118int __xvprintf(FILE *fp, const char *fmt0, va_list ap);
119extern int __use_xprintf;
120
121/* GLIBC compat */
122int register_printf_function(int spec, printf_function *render, printf_arginfo_function *arginfo);
123
124/* FreeBSD */
125int register_printf_render(int spec, printf_render *render, printf_arginfo_function *arginfo);
126int register_printf_render_std(const char *specs);
127
128/* vprintf_errno.c */
129printf_arginfo_function		__printf_arginfo_errno;
130printf_render			__printf_render_errno;
131
132/* vprintf_float.c */
133printf_arginfo_function		__printf_arginfo_float;
134printf_render			__printf_render_float;
135
136/* vprintf_hexdump.c */
137printf_arginfo_function		__printf_arginfo_hexdump;
138printf_render 			__printf_render_hexdump;
139
140/* vprintf_int.c */
141printf_arginfo_function		__printf_arginfo_ptr;
142printf_arginfo_function		__printf_arginfo_int;
143printf_render			__printf_render_ptr;
144printf_render			__printf_render_int;
145
146/* vprintf_quoute.c */
147printf_arginfo_function		__printf_arginfo_quote;
148printf_render 			__printf_render_quote;
149
150/* vprintf_str.c */
151printf_arginfo_function		__printf_arginfo_chr;
152printf_render			__printf_render_chr;
153printf_arginfo_function		__printf_arginfo_str;
154printf_render			__printf_render_str;
155
156/* vprintf_time.c */
157printf_arginfo_function		__printf_arginfo_time;
158printf_render			__printf_render_time;
159
160/* vprintf_vis.c */
161printf_arginfo_function		__printf_arginfo_vis;
162printf_render 			__printf_render_vis;
163
164#endif /* !_PRINTF_H */