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Added hex format specifier (%X and %x)

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--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40550
This commit is contained in:
Scott Ehlert 2007-02-27 21:30:04 +00:00
parent ad5bc37912
commit 5cccd9a242
1 changed files with 94 additions and 0 deletions
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94
core/sm_stringutil.cpp
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@ -22,6 +22,7 @@
#define LADJUST 0x00000004 /* left adjustment */
#define ZEROPAD 0x00000080 /* zero (as opposed to blank) pad */
#define UPPERDIGITS 0x00000100 /* make alpha digits uppercase */
#define to_digit(c) ((c) - '0')
#define is_digit(c) ((unsigned)to_digit(c) <= 9)
@ -358,6 +359,65 @@ void AddInt(char **buf_p, size_t &maxlen, int val, int width, int flags)
*buf_p = buf;
}
void AddHex(char **buf_p, size_t &maxlen, unsigned int val, int width, int flags)
{
char text[32];
int digits;
char *buf;
char digit;
int hexadjust;
if (flags & UPPERDIGITS)
{
hexadjust = 'A' - '9' - 1;
} else {
hexadjust = 'a' - '9' - 1;
}
digits = 0;
do
{
digit = ('0' + val % 16);
if (digit > '9')
{
digit += hexadjust;
}
text[digits++] = digit;
val /= 16;
} while(val);
buf = *buf_p;
if (!(flags & LADJUST))
{
while (digits < width && maxlen)
{
*buf++ = (flags & ZEROPAD) ? '0' : ' ';
width--;
maxlen--;
}
}
while (digits-- && maxlen)
{
*buf++ = text[digits];
width--;
maxlen--;
}
if (flags & LADJUST)
{
while (width-- && maxlen)
{
*buf++ = (flags & ZEROPAD) ? '0' : ' ';
maxlen--;
}
}
*buf_p = buf;
}
size_t gnprintf(char *buffer, size_t maxlen, const char *format, void **args)
{
if (!buffer || !maxlen)
@ -486,6 +546,21 @@ reswitch:
arg++;
break;
}
case 'X':
{
unsigned int *value = (unsigned int *)args[arg];
flags |= UPPERDIGITS;
AddHex(&buf_p, llen, *value, width, flags);
arg++;
break;
}
case 'x':
{
unsigned int *value = (unsigned int *)args[arg];
AddHex(&buf_p, llen, *value, width, flags);
arg++;
break;
}
case '%':
{
if (!llen)
@ -704,6 +779,25 @@ reswitch:
llen -= res;
break;
}
case 'X':
{
CHECK_ARGS(0);
cell_t *value;
pCtx->LocalToPhysAddr(params[arg], &value);
flags |= UPPERDIGITS;
AddHex(&buf_p, llen, static_cast<unsigned int>(*value), width, flags);
arg++;
break;
}
case 'x':
{
CHECK_ARGS(0);
cell_t *value;
pCtx->LocalToPhysAddr(params[arg], &value);
AddHex(&buf_p, llen, static_cast<unsigned int>(*value), width, flags);
arg++;
break;
}
case '%':
{
if (!llen)