num_replaced.i4.v = str_escape_set_c(source_string.i1a.r, length.i4.v,
					     max_length.i4.v, type.i4.v,

	This routine replaces characters in a string with their corresponding
	escape characters.

	source_string	source string containing escape characters
	length		length of string (If a value of zero is passed,
			the length of the string will be calculated.)
	chars_to_escape	set of characters to be escaped
	num_chars	number of characers in escape set
			(If a value of 0 is passed for this argument,
			 the routine will treat "chars_to_escape" as a
			 null terminated string.)
	output_string	returned null terminated string with escape
			characters replaced (This argument can point to
			the original string.)
	max_length	maximum length of the output string not including
			the null terminator
	type		type of escape characters to look for
			(STR_ESCAPE_C -> C/C++ escape characters,
			 STR_ESCAPE_URL -> URL escape characters,
			 STR_ESCAPE_HTML -> HTML escape characters)
	options		use options
			(STR_OPT_NONE -> no options selected,
			 STR_OPT_HANDLE_QUOTES -> preserve characters in
						  quoted substrings)

	This function returns status values as follows:

	CLIB_INVARG		invalid escape character type requested
	CLIB_TRUNCATED		output string was too long
	otherwise		number of characters replaced

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	str_escape_set_dynamic_c, str_escape_c, str_escape_dynamic_c,
	str_unescape_c, str_escape_quotes_in_sql_string_c,
	str_replace_character_c, str_replace_char_c,
	str_replace_character_set_c, str_replace_characters_with_string_c,
	str_replace_characters_with_strings_c, str_replace_char_set_c,
	str_remove_char_set_c, str_find_character_c, str_find_character_set_c,
	str_translate_characters_c, str_replace_string_c,
	str_replace_bracketed_c, str_find_string_c, str_find_last_string_c,
	str_character_count_c, str_expand_tabs_c, str_make_printable_c,

	C/C++ usage:

	static char	source_string[LENGTH+1] = "dio_set_dev(_c)";
	char	chars_to_escape[] = "()";
	int	num_replaced;
	int	length = 0;
	int	num_chars = 0;
	int	max_length = LENGTH;
	int	type = STR_ESCAPE_URL;
	unsigned int	options = STR_OPT_NONE;

	num_replaced = str_escape_set_c(source_string,length,chars_to_escape,