core/smn_string.cpp
changeset 411 d954bff454a0
parent 370 d3a484f98f6d
child 432 77112e9620fa
     1.1 --- a/core/smn_string.cpp	Mon Jan 29 22:33:57 2007 +0000
     1.2 +++ b/core/smn_string.cpp	Mon Jan 29 22:34:53 2007 +0000
     1.3 @@ -170,6 +170,58 @@
     1.4  	return static_cast<cell_t>(res);
     1.5  }
     1.6  
     1.7 +static cell_t sm_vformat(IPluginContext *pContext, const cell_t *params)
     1.8 +{
     1.9 +	int vargPos = static_cast<int>(params[4]);
    1.10 +
    1.11 +	/* Get the parent parameter array */
    1.12 +	sp_context_t *ctx = pContext->GetContext();
    1.13 +	cell_t *local_params = (cell_t *)(ctx->memory + ctx->frm + (2 * sizeof(cell_t)));
    1.14 +
    1.15 +	cell_t max = local_params[0];
    1.16 +	if (vargPos > (int)max + 1)
    1.17 +	{
    1.18 +		return pContext->ThrowNativeError("Argument index is invalid: %d", vargPos);
    1.19 +	}
    1.20 +
    1.21 +	cell_t addr_start = params[1];
    1.22 +	cell_t addr_end = addr_start + params[2];
    1.23 +	bool copy = false;
    1.24 +	for (int i=vargPos; i<=max; i++)
    1.25 +	{
    1.26 +		/* Does this clip bounds? */
    1.27 +		if ((local_params[i] >= addr_start)
    1.28 +			&& (local_params[i] <= addr_end))
    1.29 +		{
    1.30 +			copy = true;
    1.31 +			break;
    1.32 +		}
    1.33 +	}
    1.34 +
    1.35 +	/* Get destination info */
    1.36 +	char *format, *destination;
    1.37 +	size_t maxlen = static_cast<size_t>(params[2]);
    1.38 +
    1.39 +	if (copy)
    1.40 +	{
    1.41 +		destination = g_formatbuf;
    1.42 +	} else {
    1.43 +		pContext->LocalToString(params[1], &destination);
    1.44 +	}
    1.45 +
    1.46 +	pContext->LocalToString(params[3], &format);
    1.47 +
    1.48 +	size_t total = atcprintf(destination, maxlen, format, pContext, local_params, &vargPos);
    1.49 +
    1.50 +	/* Perform copy-on-write if we need to */
    1.51 +	if (copy)
    1.52 +	{
    1.53 +		pContext->StringToLocal(params[1], maxlen, g_formatbuf);
    1.54 +	}
    1.55 +
    1.56 +	return total;
    1.57 +}
    1.58 +
    1.59  REGISTER_NATIVES(basicstrings)
    1.60  {
    1.61  	{"strlen",				sm_strlen},
    1.62 @@ -182,5 +234,6 @@
    1.63  	{"FloatToString",		sm_floattostr},
    1.64  	{"Format",				sm_format},
    1.65  	{"FormatEx",			sm_formatex},
    1.66 +	{"VFormat",				sm_vformat},
    1.67  	{NULL,					NULL},
    1.68  };