bonkmaykr/otyaSMILEBASIC
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演算をdouble対応にした

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otya128
2015-06-07 19:11:18 +09:00
parent c871927bc3
commit 978a7a6ee7
5 changed files with 139 additions and 26 deletions
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35
SMILEBASIC/parser.d
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@@ -35,6 +35,7 @@ class Lexical
table['='] = TokenType.Assign;
table['<'] = TokenType.Less;
table['>'] = TokenType.Greater;
table['!'] = TokenType.LogicalNot;
reserved["OR"] = TokenType.Or;
reserved["AND"] = TokenType.And;
reserved["XOR"] = TokenType.Xor;
@@ -175,6 +176,30 @@ class Lexical
i += 2;
break;
}
if(c == '<' && i + 1 < code.length && code[i + 1] == '<')
{
token = Token(TokenType.LeftShift);
i += 2;
break;
}
if(c == '>' && i + 1 < code.length && code[i + 1] == '>')
{
token = Token(TokenType.RightShift);
i += 2;
break;
}
if(c == '&' && i + 1 < code.length && code[i + 1] == '&')
{
token = Token(TokenType.LogicalAnd);
i += 2;
break;
}
if(c == '|' && i + 1 < code.length && code[i + 1] == '|')
{
token = Token(TokenType.LogicalOr);
i += 2;
break;
}
if(table[cast(char)c] == TokenType.Unknown)
{
//error
@@ -254,7 +279,9 @@ class Parser
{
switch(type)
{
// return 8;//&&,||
case TokenType.LogicalAnd:
case TokenType.LogicalOr:
return 8;//&&,||
case TokenType.And:
case TokenType.Or:
case TokenType.Xor:
@@ -266,13 +293,15 @@ class Parser
case TokenType.Greater:
case TokenType.GreaterEqual:
return 6;//==,!=,<,<=,>,>=
// return 5;//<<,>>
case TokenType.LeftShift:
case TokenType.RightShift:
return 5;//<<,>>
case TokenType.Plus:
case TokenType.Minus:
return 4;//+,-(bin)
case TokenType.Mul:
case TokenType.Div:
case TokenType.IntDiv:
case TokenType.Mod:
return 3;//*,/,DIV,MOD
// return 2;//-,NOT,!