// --------------------------------------------------------------------------------------------------
// Semi-efficiënt parameter copy using lr_eval_string_ext() with appropriate freeing of memory.
// @author Floris Kraak
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// example usage:
// lr_save_string("text", "param_a");
// y_copy_param("param_a", "param_b"); // Results in an exact copy of the content of param_a being stored in param_b.
// lr_log_message(lr_eval_string("param_b: {param_b}")); // Prints "param_b: text".
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
void y_copy_param(char* source_param, char* dest_param)
{
unsigned long size;
char* buffer;
char* source = y_get_parameter_eval_string(source_param); // Puts the parameter name into parameter seperators { }. Resulting ptr must be freed.
lr_eval_string_ext(source, strlen(source), &buffer, &size, 0, 0, -1); // Evaluates the result and copies the data into buffer.
free(source); // Free the intermediate parameter name.
lr_save_var(buffer, size, 0, dest_param); // Save the result.
lr_eval_string_ext_free(&buffer); // Free the buffer.
}
/*!
\brief Create a unique parameter.
\param param The name of a parameter to store the resulting string in. Length is always 22 (base64) characters.
\return void
\author Floris Kraak & André Luyer
Example:
\code
y_param_unique("test");
\endcode
*/
void y_param_unique(char *param)
{
char buf[25]; // base64 of UUID's are always 24 characters, plus null byte.
lr_generate_uuid_on_buf(buf); // Probably a wrapper for http://msdn.microsoft.com/en-us/library/windows/desktop/aa379205(v=vs.85).aspx
lr_save_var(buf, 22, 0, param); // save & trim off ==
}
