public static void LoadFromString(string file_contents, ReadLineDelegate line_reader, StringToEnumValue string_to_enum)
{
int file_length = file_contents.Length;
// read char by char and when a , or \n, perform appropriate action
int cur_file_index = 0; // index in the file
List <string> cur_line = new List <string>(); // current line of data
int cur_line_number = 0;
StringBuilder cur_item = new StringBuilder("");
bool inside_quotes = false; // managing quotes
while (cur_file_index < file_length)
{
char c = file_contents[cur_file_index++];
switch (c)
{
case '"':
if (!inside_quotes)
{
inside_quotes = true;
}
else
{
if (cur_file_index == file_length)
{
// end of file
inside_quotes = false;
goto case '\n';
}
else if (file_contents[cur_file_index] == '"')
{
// double quote, save one
cur_item.Append("\"");
cur_file_index++;
}
else
{
// leaving quotes section
inside_quotes = false;
}
}
break;
case '\r':
// ignore it completely
break;
case ',':
goto case '\n';
case '\n':
if (inside_quotes)
{
// inside quotes, this characters must be included
cur_item.Append(c);
}
else
{
// end of current item
cur_line.Add(cur_item.ToString());
//if (cur_item.ToString().StartsWith("%"))
{
string_to_enum(cur_line_number, cur_line);
}
cur_item.Length = 0;
if (c == '\n' || cur_file_index == file_length)
{
// also end of line, call line reader
line_reader(cur_line_number++, cur_line);
cur_line.Clear();
}
}
break;
default:
// other cases, add char
cur_item.Append(c);
break;
}
}
}
public static void LoadFromFile(string file_name, ReadLineDelegate line_reader, StringToEnumValue string_to_enum)
{
LoadFromString(File.ReadAllText(file_name), line_reader, string_to_enum);
}