data.h

词法分析器

struct Token
{
	char *type;
	union 
	{
		char *caption;
		double  value;
		double (*func)(double q);
	}content;
};

char *Token_elem[18][2]=
{
	{"function", "cos"},
	{"keyword",  "draw"},
	{"const",    "e"},
	{"function",  "exp"},
	{"keyword",  "for"},
	{"keyword",  "from"},	
	{"keyword",  "is"},
	{"function", "ln"},
	{"keyword",  "origin"},
	{"const",    "pi"},
	{"keyword",  "rot"},
	{"keyword",  "scale"},
	{"function", "sin"},
	{"function", "sqrt"},
	{"keyword",  "step"},	
	{"parament", "t"},
	{"function", "tan"},
	{"keyword",  "to"}
};