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/*-
* Copyright (c) 2005 Poul-Henning Kamp
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <namespace.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <wchar.h>
#include <vis.h>
#include <assert.h>
#include <sys/time.h>
#include "printf.h"
int
__printf_arginfo_quote(const struct printf_info *pi __unused, size_t n, int *argt)
{
assert(n >= 1);
argt[0] = PA_POINTER;
return (1);
}
int
__printf_render_quote(struct __printf_io *io, const struct printf_info *pi __unused, const void *const *arg)
{
const char *str, *p, *t, *o;
char r[5];
int i, ret;
str = *((const char *const *)arg[0]);
if (str == NULL)
return (__printf_out(io, pi, "\"(null)\"", 8));
if (*str == '\0')
return (__printf_out(io, pi, "\"\"", 2));
for (i = 0, p = str; *p; p++)
if (isspace(*p) || *p == '\\' || *p == '"')
i++;
if (!i)
return (__printf_out(io, pi, str, strlen(str)));
ret = __printf_out(io, pi, "\"", 1);
for (t = p = str; *p; p++) {
o = NULL;
if (*p == '\\')
o = "\\\\";
else if (*p == '\n')
o = "\\n";
else if (*p == '\r')
o = "\\r";
else if (*p == '\t')
o = "\\t";
else if (*p == ' ')
o = " ";
else if (*p == '"')
o = "\\\"";
else if (isspace(*p)) {
sprintf(r, "\\%03o", *p);
o = r;
} else
continue;
if (p != t)
ret += __printf_out(io, pi, t, p - t);
ret += __printf_out(io, pi, o, strlen(o));
t = p + 1;
}
if (p != t)
ret += __printf_out(io, pi, t, p - t);
ret += __printf_out(io, pi, "\"", 1);
__printf_flush(io);
return(ret);
}
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