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Added vformat() native

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This commit is contained in:
David Anderson 2006-05-07 00:25:43 +00:00
parent 7a533c7be5
commit 576680eaf9
1 changed files with 62 additions and 0 deletions
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62
amxmodx/string.cpp
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@ -973,6 +973,67 @@ static cell AMX_NATIVE_CALL n_strfind(AMX *amx, cell *params)
return (find - str);
}
static cell AMX_NATIVE_CALL vformat(AMX *amx, cell *params)
{
int vargPos = static_cast<int>(params[4]);
/** get the parent parameter array */
AMX_HEADER *hdr = (AMX_HEADER *)amx->base;
cell *local_params = (cell *)(
(char *)amx->base + (cell)hdr->dat +
(cell)amx->frm + (2 * sizeof(cell))
);
cell max = local_params[0] / sizeof(cell);
if (vargPos > (int)max + 1)
{
LogError(amx, AMX_ERR_NATIVE, "Invalid vararg parameter passed: %d", vargPos);
return 0;
}
/**
* check for bounds clipping
*/
cell addr_start = params[1];
cell addr_end = addr_start + params[2];
bool copy = false;
for (int i = vargPos; i <= max; i++)
{
//does this clip the bounds?
if ( (local_params[i] >= addr_start)
&& (local_params[i] <= addr_end) )
{
copy = true;
break;
}
}
/* get destination info */
cell *fmt = get_amxaddr(amx, params[3]);
cell *realdest = get_amxaddr(amx, params[1]);
size_t maxlen = static_cast<size_t>(params[2]);
cell *dest = realdest;
/* if this is necessary... */
static cell cpbuf[4096];
if (copy)
dest = cpbuf;
/* perform format */
size_t total = atcprintf(dest, maxlen, fmt, amx, local_params, &vargPos);
/* copy back */
if (copy)
{
memcpy(realdest, dest, (total+1) * sizeof(cell));
}
return total;
}
AMX_NATIVE_INFO string_Natives[] =
{
{"add", add},
@ -1008,5 +1069,6 @@ AMX_NATIVE_INFO string_Natives[] =
{"strcmp", n_strcmp},
{"str_to_float", str_to_float},
{"float_to_str", float_to_str},
{"vformat", vformat},
{NULL, NULL}
};