static List <TextElement> ParseCommand(string text)
{
var elems = new List <TextElement>();
var element = new TextElement
{
Speed = 1
};
var state = ParseState.PlainText;
var cmdName = new StringBuilder();
var cmdArgs = new StringBuilder();
for (int i = 0; i < text.Length; i++)
{
var c = text[i];
var nc = i < text.Length - 1 ? text[i + 1] : default(char);
switch (state)
{
case ParseState.PlainText:
// コマンドはじまりか？
if (c == '$')
{
// エスケープか？
if (nc == '$')
{
// そのまま出力して1個飛ばす
i++;
}
else
{
// コマンドをはじめる
state = ParseState.Name;
cmdName.Clear();
cmdArgs.Clear();
continue;
}
}
element.Text = c.ToString();
elems.Add(element);
element.Nod = false;
element.WaitTime = 0;
break;
case ParseState.Name:
if (c == '=')
{
// 引数開始
state = ParseState.Argument;
continue;
}
if (c == ';')
{
// コマンド終了
state = ParseState.PlainText;
DoCommand(ref elems, ref element, cmdName.ToString(), cmdArgs.ToString());
continue;
}
cmdName.Append(c);
break;
case ParseState.Argument:
if (c == ';')
{
// コマンド終了
state = ParseState.PlainText;
DoCommand(ref elems, ref element, cmdName.ToString(), cmdArgs.ToString());
continue;
}
cmdArgs.Append(c);
break;
default:
throw new InvalidOperationException("Invalid parse state");
}
}
return(elems);
}
static void DoCommand(ref List <TextElement> list, ref TextElement elem, string name, string args)
{
switch (name.ToLower())
{
case "b":
case "bold":
elem.Bold = true;
break;
case "i":
case "italic":
elem.Italic = true;
break;
case "c":
case "col":
case "color":
elem.Color = args;
break;
case "v":
case "voice":
elem.Voice = args;
break;
case "!b":
case "!bold":
elem.Bold = false;
break;
case "!i":
case "!italic":
elem.Italic = false;
break;
case "!c":
case "!col":
case "!color":
elem.Color = null;
break;
case "!sz":
case "!size":
elem.Size = 0;
break;
case "!spd":
case "!speed":
elem.Speed = 1;
break;
case "sz":
case "size":
int size;
if (!int.TryParse(args.Trim(), out size))
{
throw new FormatException("サイズには整数値のみ指定できます");
}
elem.Size = size;
break;
case "r":
case "rest":
elem.Bold = false;
elem.Italic = false;
elem.Color = null;
elem.Nod = false;
elem.Speed = 1;
elem.WaitTime = 0;
elem.Size = 0;
elem.Voice = null;
break;
case "w":
case "wait":
float wait;
if (!float.TryParse(args.Trim(), out wait))
{
throw new FormatException("待機時間には実数値のみ指定できます");
}
elem.WaitTime = wait;
break;
case "nod":
elem.Nod = true;
break;
case "spd":
case "speed":
float spd;
if (!float.TryParse(args.Trim(), out spd))
{
throw new FormatException("文字送り速度には実数値のみ指定できます");
}
elem.Speed = spd;
break;
case "var":
case "variable":
foreach (var c in GetVariable(args))
{
elem.Text = c.ToString();
list.Add(elem);
elem.Nod = false;
elem.WaitTime = 0;
}
break;
default:
var raw = new StringBuilder().Append('$').Append(name);
if (!string.IsNullOrEmpty(args))
{
raw.Append('=').Append(args);
}
raw.Append(';');
foreach (var c in raw.ToString())
{
elem.Text = c.ToString();
list.Add(elem);
elem.Nod = false;
elem.WaitTime = 0;
}
break;
}
}
