public Letter(string filename)
{
components = new List<LetterComponent>();
Fields = new List<LetterField>();
StringType currentType = StringType.Text;
string contents = File.ReadAllText(filename);
StringBuilder builder = new StringBuilder();
int contlen = contents.Length;
int line = 1;
for (int c = 0; c < contlen; ++c)
{
char curr = contents[c];
if (curr == '\n')
++line;
switch (curr)
{
case '\\':
if (c != contlen - 1)
{
char next = contents[++c];
switch (next)
{
case '<':
builder.Append('<');
break;
case '>':
builder.Append('>');
break;
case '\\':
builder.Append('\\');
break;
default:
throw new FormatException("Line "
+ line.ToString()
+ ": Unrecognized escape sequence \\"
+ next.ToString());
}
}
else
{
throw new FormatException("Line " + line.ToString()
+ ": The file ended with"
+ " an escape character (\\)");
}
break;
case '<':
if (currentType == StringType.Field)
{
throw new FormatException("Line " + line.ToString()
+ ": You cannot have a field in a field");
}
else
{
// Add the current text to the letter
if(builder.Length > 0)
{
LetterText text = new LetterText();
text.Text = builder.ToString();
components.Add(text);
builder.Length = 0;
}
currentType = StringType.Field;
}
break;
case '>':
if (currentType == StringType.Text)
{
throw new FormatException("Line " + line.ToString()
+ ": > found without matching <");
}
else
{
// Add the current field to the letter
if (builder.Length > 0)
{
LetterField field = new LetterField();
field.Name = builder.ToString();
if(field.Name.Contains("\n"))
{
throw new FormatException("Line "
+ line.ToString()
+ ": A field cannot span"
+ " multiple lines");
}
components.Add(field);
Fields.Add(field);
builder.Length = 0;
currentType = StringType.Text;
}
else
{
throw new FormatException("Line "
+ line.ToString()
+ ": A field cannot be empty.");
}
}
break;
default:
builder.Append(curr);
break;
}
}
// Deal with the last text component
if (builder.Length > 0)
{
if (currentType == StringType.Field)
{
throw new FormatException("The end of the file was reached"
+ " without finding the end of the last field");
}
else
{
LetterText text = new LetterText();
text.Text = builder.ToString();
components.Add(text);
}
}
}
void Start()
{
coll = GetComponent <Collider2D>();
text = GetComponent <Text>();
letter = GetComponent <LetterText>();
}
