Function get_actual_line_size

contrib/formatter_fixedwidth/fixedwidth.c:454–551

}

static int
get_actual_line_size(FormatConfig *format_in_config, char *line_start, int cur_size, int tot_size, PG_FUNCTION_ARGS)
{
	int   row_size;
	int   actual_fields_size;
	int   remaining;
	char *line_end; 
	char *expected_delim_loc = line_start + format_in_config->fields_tot_size;
	
	/*
	 * the case where there is no line delimiter
	 */
	if ( 0 == format_in_config->line_delimiter_length )
	{
		return format_in_config->fields_tot_size;
	}

	if ( 1 == format_in_config->line_delimiter_length )
	{
		char delim = format_in_config->line_delimiter[0];
				
		if ( *expected_delim_loc == delim )
			line_end = expected_delim_loc;
		else
			line_end = strchr(line_start, delim);
		
	}
	else /* > 1 */
	{
		int i;
		bool as_expected = true;
		
		for ( i = 0; i < format_in_config->line_delimiter_length; i++)
		{
			if ( expected_delim_loc[i] != format_in_config->line_delimiter[i] )
			{
				as_expected = false;
				break;
			}
		}
		
		if ( as_expected )
			line_end = expected_delim_loc;
		else
			line_end = strstr(line_start, format_in_config->line_delimiter);
	}
	
	/*
	 * line_end will be 0, if strchr or strstr did not find the delimiter.
	 * In this case we throw an exception  ( unless this is the last line in the buffer )--> The line delimiter specified in
	 * FormatConfig must be present in the file.
	 */
	if ( 0 == line_end /*did not find delimiter*/ )
	{
		remaining = tot_size - cur_size - format_in_config->fields_tot_size;
		if (1 == remaining) /* we are at the last line so we cannot find a custom delimiter - we have an OS line delimiter here */
		{
			return (format_in_config->fields_tot_size + 1);