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/*
* Common string test code.
*
* Copyright (c) 2020, Arm Limited.
* SPDX-License-Identifier: MIT
*/
#include <ctype.h>
#include <stdio.h>
/* Accounting errors for a test case. */
static int err_count;
#define ERR_LIMIT 10
#define ERR(...) (err_count++, printf (__VA_ARGS__))
static inline void
quotechar (unsigned char c)
{
if (isprint (c))
putchar (c);
else
printf ("\\x%02x", c);
}
/* quoted print around at or the entire string if at < 0. */
static void
quoteat (const char *prefix, const void *p, int len, int at)
{
static const int CTXLEN = 15;
int i;
const char *pre = "\"";
const char *post = "\"";
const char *s = p;
if (at > CTXLEN)
{
s += at - CTXLEN;
len -= at - CTXLEN;
pre = "...\"";
}
if (at >= 0 && len > 2 * CTXLEN + 1)
{
len = 2 * CTXLEN + 1;
post = "\"...";
}
printf ("%4s: %s", prefix, pre);
for (i = 0; i < len; i++)
quotechar (s[i]);
printf ("%s\n", post);
}
static inline void
quote (const char *prefix, const void *p, int len)
{
quoteat (prefix, p, len, -1);
}
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