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Print flags symbolically.

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This commit is contained in:
enami 2004-07-16 23:28:20 +00:00
parent 084b007d1b
commit 5f072cb7f0
1 changed files with 123 additions and 7 deletions
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130
regress/lib/libc/gen/humanize_number/hntest.c
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@ -1,7 +1,8 @@
/* $NetBSD: hntest.c,v 1.1 2004/07/14 22:47:31 enami Exp $ */
/* $NetBSD: hntest.c,v 1.2 2004/07/16 23:28:20 enami Exp $ */
#include <err.h>
#include <inttypes.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <util.h>
@ -31,6 +32,13 @@ const struct hnopts {
*/
{ 5, 1, "", 0, HN_NOSPACE, 1, "1" },
{ 5, 1, "", 0, 0, 2, "1 " }, /* just for reference */
{ 5, 1, "", 0, HN_B, 3, "1 B" }, /* and more ... */
{ 5, 1, "", 0, HN_DECIMAL, 2, "1 " },
{ 5, 1, "", 0, HN_NOSPACE | HN_B, 2, "1B" },
{ 5, 1, "", 0, HN_B | HN_DECIMAL, 3, "1 B" },
{ 5, 1, "", 0, HN_NOSPACE | HN_B | HN_DECIMAL, 2, "1B" },
/*
* Space and HN_B. Rev. 1.7 produces "1B".
*/
@ -44,9 +52,110 @@ const struct hnopts {
{ 6, 1000, "A", HN_AUTOSCALE, HN_DECIMAL, -1, "" },
};
struct hnflags {
int hf_flags;
const char *hf_name;
};
const struct hnflags scale_flags[] = {
{ HN_GETSCALE, "HN_GETSCALE" },
{ HN_AUTOSCALE, "HN_AUTOSCALE" },
};
const struct hnflags normal_flags[] = {
{ HN_DECIMAL, "HN_DECIMAL" },
{ HN_NOSPACE, "HN_NOSPACE" },
{ HN_B, "HN_B" },
{ HN_DIVISOR_1000, "HN_DIVISOR_1000" },
};
const char *
formatflags(char *, size_t, const struct hnflags *, size_t, int);
void newline(void);
void wprintf(const char *, ...);
int main(int, char *[]);
const char *
formatflags(char *buf, size_t buflen, const struct hnflags *hfs,
size_t hfslen, int flags)
{
const struct hnflags *hf;
char *p = buf;
size_t len = buflen;
int i, found, n;
if (flags == 0) {
snprintf(buf, buflen, "0");
return (buf);
}
for (i = found = 0; i < hfslen && flags & ~found; i++) {
hf = &hfs[i];
if (flags & hf->hf_flags) {
found |= hf->hf_flags;
n = snprintf(p, len, "|%s", hf->hf_name);
if (n >= len) {
p = buf;
len = buflen;
/* Print `flags' as number */
goto bad;
}
p += n;
len -= n;
}
}
flags &= ~found;
if (flags)
bad:
snprintf(p, len, "|0x%x", flags);
return (*buf == '|' ? buf + 1 : buf);
}
static int col, bol = 1;
void
newline(void)
{
fprintf(stderr, "\n");
col = 0;
bol = 1;
}
void
wprintf(const char *fmt, ...)
{
char buf[80];
va_list ap;
int n;
va_start(ap, fmt);
if (col >= 0) {
n = vsnprintf(buf, sizeof(buf), fmt, ap);
if (n >= sizeof(buf)) {
col = -1;
goto overflow;
} else if (n == 0)
goto out;
if (!bol) {
if (col + n > 75)
fprintf(stderr, "\n "), col = 4;
else
fprintf(stderr, " "), col++;
}
fprintf(stderr, "%s", buf);
col += n;
bol = 0;
} else {
overflow:
vfprintf(stderr, fmt, ap);
}
out:
va_end(ap);
}
int
main(int argc, char *argv[])
{
char fbuf[128];
const struct hnopts *ho;
char *buf = NULL;
size_t buflen = 0;
@ -68,12 +177,19 @@ main(int argc, char *argv[])
(rv == -1 || strcmp(buf, ho->ho_retstr) == 0))
continue;
fprintf(stderr,
"humanize_number(\"%s\", %d, %" PRId64
", \"%s\", 0x%x, 0x%x) = %d, but got %d/[%s]\n",
ho->ho_retstr, ho->ho_len, ho->ho_num,
ho->ho_suffix, ho->ho_scale, ho->ho_flags,
ho->ho_retval, rv, rv == -1 ? "" : buf);
wprintf("humanize_number(\"%s\", %d, %" PRId64 ",",
ho->ho_retstr, ho->ho_len, ho->ho_num);
wprintf("\"%s\",", ho->ho_suffix);
wprintf("%s,", formatflags(fbuf, sizeof(fbuf), scale_flags,
sizeof(scale_flags) / sizeof(scale_flags[0]),
ho->ho_scale));
wprintf("%s)", formatflags(fbuf, sizeof(fbuf), normal_flags,
sizeof(normal_flags) / sizeof(normal_flags[0]),
ho->ho_flags));
wprintf("= %d,", ho->ho_retval);
wprintf("but got");
wprintf("%d/[%s]", rv, rv == -1 ? "" : buf);
newline();
error = 1;
}
exit(error ? EXIT_FAILURE : EXIT_SUCCESS);