FR2の字句解析と構文解析
どーも、どーも、こんばんわー、ハルキーです。
今日はゆるっと猫つく言語FR2のソースコードを載せていきたいと思います。
字句解析190行くらい、構文解析870行くらいです。
文字の組み合わせをLetterクラスで、単語にまとめた後、Localにブロック構造を格納していきます。
丁寧に見てもらうとわかるかもしれませんが、基本的に計算式を解析するコードと、行の組み合わせを解析するコードの２つしかないので、コピペに近い感じで作られているので、その気になれば、まだまだ行数を削れます。
（見にくくなるし、カスタマイズ性なくなるからしないけど。）
Compileが字句解析、Startからが構文解析です。
Feel,Result,ReasonOneはint x:, 1に該当し
Blockは()の中を調べる。
Reasonは:改行か、:式（ResultOne)を分けます。
Block2とBlock2_2は、{…|….}を処理しています。
簡単な説明はこんなもんで。
ブログで読むにはそれなりに長いコードなので、興味あったらどうぞみたいな感じで載せました。
しばらくしたら、GitHubにあげます。
4日後に意味解析のコードあげますね。
応援してくれると、うれしいです。
スキ、フォローよろしくお願いします。
public void Compile(string text)
{
List<Letter> letters = new List<Letter>();
var bk = 0;
var row = 0;
for (var i = 0; i < text.Length; i++)
{
if (('a' <= text[i] && text[i] <= 'z') || ('A' <= text[i] && text[i] <= 'Z'))
{
var j = i + 1;
for (; j < text.Length; j++)
{
if (('a' <= text[j] && text[j] <= 'z') || ('A' <= text[j] && text[j] <= 'Z') || ('0' <= text[j] && text[j] <= '9')) continue;
break;
}
Letter l = new Letter() { name = text.Substring(i, j - i), type = LetterType.Letter, row = row };
letters.Add(l);
i = j - 1;
}
else if ('0' <= text[i] && text[i] <= '9')
{
var j = i + 1;
for (; j < text.Length; j++)
{
if ('0' <= text[j] && text[j] <= '9') continue;
break;
}
letters.Add(new Letter() { name = text.Substring(i, j - i), type = LetterType.Number, row = row });
i = j - 1;
}
else if (text[i] == '"')
{
var j = i + 1;
for(; j < text.Length; j++)
{
if (text[j] == '"')
{
letters.Add(new Letter() { name = text.Substring(i + 1, j - i - 1), type = LetterType.Str, row = row });
break;
}
}
i = j;
}
else if (text[i] == ':')
{
letters.Add(new Letter() { type = LetterType.Colon, row = row });
}
else if (text[i] == '=')
{
if (i + 1 < text.Length && text[i + 1] == '=')
{
i++;
letters.Add(new Letter() {name = "==", type = LetterType.Operator, row = row });
}
else letters.Add(new Letter() { type = LetterType.Colon, row = row });
}
else if (text[i] == ';')
{
letters.Add(new Letter() { type = LetterType.Semicolon, row = row });
}
else if (text[i] == ',')
{
letters.Add(new Letter() { type = LetterType.Comma, row = row });
}
else if (text[i] == '|')
{
letters.Add(new Letter() { type = LetterType.Bou, row = row });
}
else if (text[i] == '#')
{
letters.Add(new Letter() { type = LetterType.Sharp, row = row });
}
else if (text[i] == '@')
{
var j = i + 1;
if (('a' <= text[j] && text[j] <= 'z') || ('A' <= text[j] && text[j] <= 'Z'))
{
j++;
for (; j < text.Length; j++)
{
if (('a' <= text[j] && text[j] <= 'z') || ('A' <= text[j] && text[j] <= 'Z')) continue;
break;
}
letters.Add(new Letter() { name = text.Substring(i, j - i), type = LetterType.AtLetter, row = row });
i = j - 1;
}
}
else if (text[i] == '\n')
{
i++;
var count = 0;
for (; i < text.Length; i++)
{
if (text[i] == ' ') count++;
else if (text[i] == '\n') count = 0;
else break;
}
i--;
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.Kaigyou, indent = count, row = row });
row++;
}
else if (text[i] == '+')
{
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.Plus, row = row });
}
else if (text[i] == '-')
{
if (i != 0 && i + 1 < text.Length && text[i - 1] == ' ' && text[i + 1] != ' ')
{
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.SingleMinus, row = row });
}
else {
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.Minus, row = row });
}
}
else if (text[i] == '<')
{
if (i + 1 < text.Length)
{
if (text[i + 1] == '-')
{
letters.Add(new Letter() { name = "<-", type = LetterType.Left, row = row });
i++;
}
else if (text[i + 1] == '=')
{
letters.Add(new Letter() { name = text.Substring(i, 2), type = LetterType.LessEqual, row = row });
i++;
}
else letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.LessThan, row = row });
}
else letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.LessThan, row = row });
}
else if (text[i] == '>')
{
if (i + 1 < text.Length && text[i + 1] == '=')
{
letters.Add(new Letter() { name = text.Substring(i, 2), type = LetterType.MoreEqual, row = row });
i++;
}
else letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.MoreThan, row = row });
}
else if (text[i] == '*')
{
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.Mul, row = row });
}
else if (text[i] == '/')
{
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.Div, row = row });
}
else if (text[i] == '|')
{
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.Bou, row = row });
}
else if (text[i] == '.')
{
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.Dot, row = row });
}
else if (text[i] == '(')
{
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.BracketS, row = row });
}
else if (text[i] == ')')
{
letters.Add(new Letter() { name = text[i].ToString(), type = LetterType.BracketE, row = row });
}
else if (text[i] == '[')
{
letters.Add(new Letter() { type = LetterType.BlockS, row = row });
}
else if (text[i] == ']')
{
letters.Add(new Letter() { type = LetterType.BlockE, row = row });
}
else if (text[i] == '{')
{
letters.Add(new Letter() { type = LetterType.BraceS, row = row });
}
else if (text[i] == '}')
{
letters.Add(new Letter() { type = LetterType.BraceE, row = row });
}
}
letters.Add(new Letter() { type = LetterType.End, row = row });
Local local = new Local() { letters = letters, n = 0, console=console };
Start(local);
local.exe(local, null);
local.startDecExe();
}
void Start(Local local)
{
for (; ; )
{
if (local.letter.type == LetterType.Kaigyou)
{
if (local.indent == local.letter.indent)
{
local.NextLine();
local.plus(1);
}
else if (local.indent > local.letter.indent)
{
throw new Exception();
}
else
{
throw new Exception();
}
}
else if (local.letter.type == LetterType.Semicolon)
{
local.NextLine();
local.plus(1);
}
else if (local.letter.type == LetterType.Sharp)
{
local.plus(1);
if (local.letter.type == LetterType.Letter)
{
local.label(local.letter.name);
local.plus(1);
}
else if (local.letter.type == LetterType.Number)
{
local.label(Convert.ToInt32(local.letter.name).ToString());
local.plus(1);
}
else if (local.letter.type == LetterType.Str)
{
local.label(local.letter.name);
local.plus(1);
}
else local.label("");
}
else if (local.letter.type == LetterType.End)
{
return;
}
else
{
Feel(local, LetterType.Kaigyou);
}
}
}
void Feel(Local local, LetterType finish)
{
for (; ; )
{
head:
if (local.letter.type == LetterType.Minus || local.letter.type == LetterType.SingleMinus)
{
local.feeladd(new Item(LetterType.SingleMinus) { order = 1 });
local.plus(1);
}
if (local.letter.type == LetterType.BracketS)
{
local.plus(1);
var ar2 = new Array();
local.feeladd(new Item(LetterType.Array) { obj = ar2, order = 0 });
Block(local, ar2, LetterType.BracketE);
}
else if (local.letter.type == LetterType.Letter)
{
local.feeladd(new Item(LetterType.Letter) { name = local.letter.name }.Letter(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Number)
{
local.feeladd(new Item(LetterType.Number) { name = local.letter.name }.Number(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Str)
{
local.feeladd(new Item(LetterType.Str) { name = local.letter.name }.StrObj(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Kaigyou)
{
local.plus(1);
goto head;
}
else
{
throw new Exception();
}
bl:
if (local.letter.type == LetterType.BlockS)
{
var ar2 = new Array();
local.feeldraw(new Item(LetterType.Array) { obj = ar2 });
local.plus(1);
Block(local, ar2, LetterType.BlockE);
goto bl;
}
else if (local.letter.type == LetterType.BraceS)
{
var call = new Call();
local.feeldraw(new Item(LetterType.Call) { obj = call });
local.plus(1);
Block2(local, call);
goto bl;
}
if (local.letter.type == LetterType.Letter)
{
Result(local, finish);
return;
}
if (local.letter.type == LetterType.Number || local.letter.type == LetterType.Str)
{
Result(local, finish);
return;
}
else if (local.letter.type == LetterType.BracketS)
{
Result(local, finish);
return;
}
else if (local.letter.type == LetterType.Left)
{
local.feeladd(new Item(LetterType.Left) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Dot)
{
local.feeladd(new Item(LetterType.Dot) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Comma)
{
local.feelnext();
local.plus(1);
}
else if (LetterType.Plus <= local.letter.type && local.letter.type <= LetterType.Operator)
{
switch (local.letter.type)
{
case LetterType.Plus: case LetterType.Minus:
local.feeladd(new Item(local.letter.type) { name = local.letter.name, order = 10 });
break;
case LetterType.Mul: case LetterType.Div:
local.feeladd(new Item(local.letter.type) { name = local.letter.name, order = 9 });
break;
case LetterType.LessThan: case LetterType.MoreThan: case LetterType.LessEqual: case LetterType.MoreEqual: case LetterType.EqualEqual:
local.feeladd(new Item(local.letter.type) { name = local.letter.name, order = 14 });
break;
}
local.plus(1);
}
else if (local.letter.type == LetterType.Colon)
{
local.block.line.result = local.block.line.feel;
local.block.line.feel = null;
local.plus(1);
Reason(local, finish);
return;
}
else if (local.letter.type == LetterType.Semicolon)
{
local.block.line.reason = local.block.line.feel;
local.block.line.feel = null;
return;
}
else if (local.letter.type == finish)
{
local.block.line.reason = local.block.line.feel;
local.block.line.feel = null;
return;
}
else if (local.letter.type == LetterType.End)
{
local.block.line.reason = local.block.line.feel;
local.block.line.feel = null;
return;
}
else
{
throw new Exception();
}
}
}
void Block(Local local, Array ar, LetterType end)
{
if (local.letter.type == end)
{
local.plus(1);
return;
}
else if (local.letter.type == LetterType.Sharp)
{
local.plus(1);
if (local.letter.type == LetterType.Letter)
{
ar.label(local.letter.name);
local.plus(1);
}
else if (local.letter.type == LetterType.Number)
{
ar.label(Convert.ToInt32(local.letter.name).ToString());
local.plus(1);
}
else if (local.letter.type == LetterType.Str)
{
ar.label(local.letter.name);
local.plus(1);
}
else ar.label("");
}
for (; ; )
{
head:
if (local.letter.type == LetterType.Minus || local.letter.type == LetterType.SingleMinus)
{
ar.add(new Item(LetterType.SingleMinus) { order = 1});
local.plus(1);
}
if (local.letter.type == LetterType.BracketS)
{
local.plus(1);
var ar2 = new Array();
ar.add(new Item(LetterType.Array) { obj = ar2, order = 0 });
Block(local, ar2, LetterType.BracketE);
}
else if (local.letter.type == LetterType.Letter)
{
ar.add(new Item(LetterType.Letter) { name = local.letter.name }.Letter(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Number)
{
ar.add(new Item(LetterType.Number) { name = local.letter.name }.Number(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Str)
{
ar.add(new Item(LetterType.Str) { name = local.letter.name }.StrObj(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Kaigyou)
{
local.plus(1);
goto head;
}
else
{
throw new Exception();
}
bl:
if (local.letter.type == LetterType.BlockS)
{
var ar2 = new Array();
ar.addfunc(new Item(LetterType.Array) { obj = ar2 });
local.plus(1);
Block(local, ar2, LetterType.BlockE);
goto bl;
}
else if (local.letter.type == LetterType.BraceS)
{
local.plus(1);
var call = new Call();
ar.addfunc(new Item(LetterType.Call) { obj =call });
Block2(local, call);
goto bl;
}
if (local.letter.type == LetterType.Letter || local.letter.type == LetterType.BracketS)
{
throw new Exception();
}
else if (local.letter.type == LetterType.Left)
{
ar.add(new Item(LetterType.Left) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Dot)
{
ar.add(new Item(LetterType.Dot) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Comma)
{
ar.next();
local.plus(1);
if (local.letter.type == LetterType.Sharp)
{
local.plus(1);
if (local.letter.type == LetterType.Letter)
{
ar.label(local.letter.name);
local.plus(1);
}
else if (local.letter.type == LetterType.Number)
{
ar.label(Convert.ToInt32(local.letter.name).ToString());
local.plus(1);
}
else if (local.letter.type == LetterType.Str)
{
ar.label(local.letter.name);
local.plus(1);
}
else ar.label("");
}
}
else if (LetterType.Plus <= local.letter.type && local.letter.type <= LetterType.SingleMinus)
{
switch (local.letter.type)
{
case LetterType.SingleMinus:
ar.add(new Item(LetterType.Minus) { name = local.letter.name, order = 10 });
break;
case LetterType.Plus: case LetterType.Minus:
ar.add(new Item(local.letter.type) { name = local.letter.name, order = 10 });
break;
case LetterType.Mul: case LetterType.Div:
ar.add(new Item(local.letter.type) { name = local.letter.name, order = 9 });
break;
case LetterType.LessThan: case LetterType.MoreThan: case LetterType.LessEqual: case LetterType.MoreEqual: case LetterType.EqualEqual:
ar.add(new Item(local.letter.type) { name = local.letter.name, order = 14 });
break;
}
local.plus(1);
}
else if (local.letter.type == end)
{
local.plus(1);
return;
}
else if (local.letter.type == LetterType.Kaigyou)
{
throw new Exception();
}
else if (local.letter.type == LetterType.End)
{
throw new Exception();
}
else
{
throw new Exception();
}
}
}
void Result(Local local, LetterType finish)
{
for (; ; )
{
head:
if (local.letter.type == LetterType.SingleMinus || local.letter.type == LetterType.Minus)
{
local.resultadd(new Item(LetterType.SingleMinus) { order = 1 });
local.plus(1);
}
if (local.letter.type == LetterType.BracketS)
{
local.plus(1);
var ar2 = new Array();
local.resultadd(new Item(LetterType.Array) { obj = ar2, order = 0 });
Block(local, ar2, LetterType.BracketE);
}
else if (local.letter.type == LetterType.Letter)
{
local.resultadd(new Item(LetterType.Letter) { name = local.letter.name }.Letter(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Number)
{
local.resultadd(new Item(LetterType.Number) { name = local.letter.name }.Number(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Str)
{
local.resultadd(new Item(LetterType.Str) { name = local.letter.name }.StrObj(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Kaigyou)
{
local.plus(1);
goto head;
}
else
{
throw new Exception();
}
bl:
if (local.letter.type == LetterType.BlockS)
{
var ar2 = new Array();
local.resultdraw(new Item(LetterType.Array) { obj = ar2 });
local.plus(1);
Block(local, ar2, LetterType.BlockE);
goto bl;
}
else if (local.letter.type == LetterType.BraceS)
{
var call = new Call();
local.resultdraw(new Item(LetterType.Call) { obj = call });
local.plus(1);
Block2(local, call);
goto bl;
}
if (local.letter.type == LetterType.Comma)
{
local.plus(1);
}
else if (LetterType.Plus <= local.letter.type && local.letter.type <= LetterType.SingleMinus)
{
switch (local.letter.type)
{
case LetterType.SingleMinus:
local.resultadd(new Item(LetterType.Minus) { name = local.letter.name, order = 10 });
break;
case LetterType.Plus: case LetterType.Minus:
local.resultadd(new Item(local.letter.type) { name = local.letter.name, order = 10 });
break;
case LetterType.Mul: case LetterType.Div:
local.resultadd(new Item(local.letter.type) { name = local.letter.name, order = 9 });
break;
case LetterType.LessThan: case LetterType.MoreThan: case LetterType.LessEqual: case LetterType.MoreEqual: case LetterType.EqualEqual:
local.resultadd(new Item(local.letter.type) { name = local.letter.name, order = 14 });
break;
}
local.plus(1);
}
else if (local.letter.type == LetterType.Left)
{
local.resultadd(new Item(LetterType.Left) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Dot)
{
local.resultadd(new Item(LetterType.Dot) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Colon)
{
local.plus(1);
Reason(local, finish);
return;
}
else if (local.letter.type == LetterType.Semicolon)
{
return;
}
else if (local.letter.type == finish)
{
return;
}
else if (local.letter.type == LetterType.End)
{
return;
}
else
{
throw new Exception();
}
}
}
void Block2(Local local, Call call)
{
local.CallBlock(call);
if (local.lettersearch([LetterType.Semicolon, LetterType.BraceE, LetterType.Kaigyou], [LetterType.Bou]))
{
local.Call2Block(call);
Block2_2(local);
return;
}
if (local.letter.type == LetterType.Bou)
{
local.plus(1);
local.Call2Block(call);
Block2_2(local);
return;
}
for (; ; )
{
head:
if (local.letter.type == LetterType.BracketS)
{
local.plus(1);
var ar2 = new Array();
local.feeladd(new Item(LetterType.Array) { obj = ar2, order = 0 });
Block(local, ar2, LetterType.BracketE);
}
else if (local.letter.type == LetterType.Letter)
{
local.feeladd(new Item(LetterType.Letter) { name = local.letter.name }.Letter(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Kaigyou)
{
local.plus(1);
goto head;
}
else throw new Exception();
head2:
if (local.letter.type == LetterType.Letter)
{
local.resultadd(new Item(LetterType.Letter) { name = local.letter.name }.Letter(local));
local.plus(1);
head3:
if (local.letter.type == LetterType.Comma)
{
local.NextLine();
local.plus(1);
goto head;
}
else if (local.letter.type == LetterType.Bou)
{
local.plus(1);
local.Call2Block(call);
Block2_2(local);
return;
}
else if (local.letter.type == LetterType.BraceE)
{
local.CallFinish();
local.plus(1);
return;
}
else if (local.letter.type == LetterType.Kaigyou)
{
local.plus(1);
goto head3;
}
else throw new Exception();
}
else if (local.letter.type == LetterType.Left)
{
local.feeladd(new Item(LetterType.Left) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Dot)
{
local.feeladd(new Item(LetterType.Dot) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Kaigyou)
{
local.plus(1);
goto head2;
}
else throw new Exception();
}
}
void Block2_2(Local local)
{
if (local.letter.type == LetterType.Kaigyou)
{
if (local.indent == local.letter.indent)
{
throw new Exception();
}
else if (local.indent > local.letter.indent)
{
throw new Exception();
}
else
{
local.Call2Indent(local.letter.indent);
}
local.plus(1);
for (; ; )
{
if (local.letter.type == LetterType.Kaigyou)
{
if (local.indent == local.letter.indent)
{
local.NextLine();
local.plus(1);
}
else if (local.indent > local.letter.indent)
{
local.plus(1);
if (local.letter.type == LetterType.BraceE)
{
local.CallFinish();
local.CallIndentFinish();
local.plus(1);
return;
}
else throw new Exception();
}
else
{
throw new Exception();
}
}
else if (local.letter.type == LetterType.Sharp)
{
local.plus(1);
if (local.letter.type == LetterType.Letter)
{
local.label(local.letter.name);
local.plus(1);
}
else if (local.letter.type == LetterType.Number)
{
local.label(local.letter.name);
local.plus(1);
}
else if (local.letter.type == LetterType.Str)
{
local.label(local.letter.name);
local.plus(1);
}
else local.label("");
}
else if (local.letter.type == LetterType.Semicolon)
{
local.NextLine();
local.plus(1);
}
else if (local.letter.type == LetterType.BraceE)
{
local.CallFinish();
local.CallIndentFinish();
local.plus(1);
return;
}
else if (local.letter.type == LetterType.End)
{
throw new Exception();
}
else
{
Feel(local, LetterType.Kaigyou);
}
}
}
else if (local.letter.type == LetterType.End)
{
return;
}
else
{
for (; ; )
{
if (local.letter.type == LetterType.BraceE)
{
local.plus(1);
local.CallFinish();
return;
}
else if (local.letter.type == LetterType.Semicolon)
{
local.plus(1);
local.NextLine();
}
else if (local.letter.type == LetterType.Sharp)
{
local.plus(1);
if (local.letter.type == LetterType.Letter)
{
local.label(local.letter.name);
local.plus(1);
}
else local.label("");
}
else if (local.letter.type == LetterType.Kaigyou) throw new Exception();
else Feel(local, LetterType.BraceE);
}
}
}
void Reason(Local local, LetterType finish)
{
if (local.letter.type == LetterType.Kaigyou)
{
if (local.indent == local.letter.indent)
{
local.NextLine();
local.plus(1);
return;
}
else if (local.indent > local.letter.indent)
{
return;
}
else
{
local.NextLine();
local.StartBlock(local.letter.indent);
}
local.plus(1);
for (; ; )
{
if (local.letter.type == LetterType.Kaigyou)
{
if (local.indent == local.letter.indent)
{
local.NextLine();
local.plus(1);
}
else if (local.indent > local.letter.indent)
{
local.FinishBlock();
local.NextLine();
return;
}
else
{
throw new Exception();
}
}
else if (local.letter.type == LetterType.Sharp)
{
local.plus(1);
if (local.letter.type == LetterType.Letter)
{
local.label(local.letter.name);
local.plus(1);
}
else if (local.letter.type == LetterType.Number)
{
local.label(Convert.ToInt32(local.letter.name).ToString());
local.plus(1);
}
else if (local.letter.type == LetterType.Str)
{
local.label(local.letter.name);
local.plus(1);
}
else local.label("");
}
else if (local.letter.type == LetterType.Semicolon)
{
local.NextLine();
local.plus(1);
}
else if (local.letter.type == LetterType.End)
{
return;
}
else
{
Feel(local, LetterType.Kaigyou);
}
}
}
else if (local.letter.type == LetterType.End)
{
return;
}
else
{
ReasonOne(local, finish);
return;
}
}
void ReasonOne(Local local, LetterType finish)
{
for (; ; )
{
head:
if (local.letter.type == LetterType.SingleMinus || local.letter.type == LetterType.Minus)
{
local.reasonadd(new Item(LetterType.SingleMinus) { order = 1 });
local.plus(1);
}
if (local.letter.type == LetterType.BracketS)
{
local.plus(1);
var ar2 = new Array();
local.reasonadd(new Item(LetterType.Array) { obj = ar2, order = 0 });
Block(local, ar2, LetterType.BracketE);
}
else if (local.letter.type == LetterType.Letter)
{
local.reasonadd(new Item(LetterType.Letter) { name = local.letter.name }.Letter(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Number)
{
local.reasonadd(new Item(LetterType.Number) { name = local.letter.name }.Number(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Str)
{
local.reasonadd(new Item(LetterType.Str) { name = local.letter.name }.StrObj(local));
local.plus(1);
}
else if (local.letter.type == LetterType.Kaigyou)
{
local.plus(1);
goto head;
}
else
{
throw new Exception();
}
bl:
if (local.letter.type == LetterType.BlockS)
{
var ar2 = new Array();
local.reasondraw(new Item(LetterType.Array) { obj = ar2 });
local.plus(1);
Block(local, ar2, LetterType.BlockE);
goto bl;
}
else if (local.letter.type == LetterType.BraceS)
{
var call = new Call();
local.reasondraw(new Item(LetterType.Call) { obj = call });
local.plus(1);
Block2(local, call);
goto bl;
}
if (local.letter.type == LetterType.Comma)
{
local.plus(1);
}
else if (LetterType.Plus <= local.letter.type && local.letter.type <= LetterType.SingleMinus)
{
switch (local.letter.type)
{
case LetterType.SingleMinus:
local.reasonadd(new Item(LetterType.Minus) { name = local.letter.name, order = 10 });
break;
case LetterType.Plus: case LetterType.Minus:
local.reasonadd(new Item(local.letter.type) { name = local.letter.name, order = 10 });
break;
case LetterType.Mul: case LetterType.Div:
local.reasonadd(new Item(local.letter.type) { name = local.letter.name, order = 9 });
break;
case LetterType.LessThan: case LetterType.MoreThan: case LetterType.LessEqual: case LetterType.MoreEqual: case LetterType.EqualEqual:
local.reasonadd(new Item(local.letter.type) { name = local.letter.name, order = 14 });
break;
}
local.plus(1);
}
else if (local.letter.type == LetterType.Left)
{
local.reasonadd(new Item(LetterType.Left) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Dot)
{
local.reasonadd(new Item(LetterType.Dot) { name = local.letter.name, order = 1 });
local.plus(1);
}
else if (local.letter.type == LetterType.Semicolon)
{
return;
}
else if (local.letter.type == finish)
{
return;
}
else if (local.letter.type == LetterType.End)
{
return;
}
else
{
throw new Exception();
}
}
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