init

tok.h

@@ -0,0 +1,102 @@
+#ifndef __TOK_H__
+#define __TOK_H__
+
+#include <stdint.h>
+#include <unistd.h>
+
+typedef struct Type {
+	enum {
+		TypeVoid = 0,
+		TypeFloat,
+		TypeInt,
+	} kind;
+
+	/*union {
+	};*/
+} Type;
+
+typedef struct Value {
+	Type type;
+
+	union {
+		double Float;
+		ssize_t Int;
+	};
+} Value;
+
+enum Operator {
+	OpLCurl  = '{',
+	OpRCurl  = '}',
+	OpLParen = '(',
+	OpRParen = ')',
+	OpComma  = ',',
+	OpAdd    = '+',
+	OpSub    = '-',
+	OpMul    = '*',
+	OpDiv    = '/',
+	OpBeginNonchars = 256,
+	OpNewLn,
+	OpEOF,
+	OperatorEnumSize,
+};
+typedef enum Operator Operator;
+
+#define PREC_DELIM -1
+extern int8_t op_prec[OperatorEnumSize];
+extern const char *op_str[OperatorEnumSize];
+
+typedef struct Identifier {
+	enum {
+		IdentName,
+		IdentAddr,
+	} kind;
+
+	union {
+		char *Name;
+		size_t Addr;
+	};
+} Identifier;
+
+typedef struct Tok {
+	size_t ln, col;
+
+	enum {
+		TokOp,
+		TokVal,
+		TokIdent,
+		TokAssign,
+		TokDeclare,
+		TokIf,
+		TokWhile,
+		TokKindEnumSize,
+	} kind;
+
+	union {
+		Operator Op;
+		Value Val;
+		Identifier Ident;
+	};
+} Tok;
+
+extern const char *tok_str[TokKindEnumSize];
+
+typedef struct TokListItem {
+	struct TokListItem *prev, *next;
+	Tok tok;
+} TokListItem;
+
+typedef struct TokList {
+	TokListItem *begin, *end;
+	TokListItem *mempools[32]; /* few mallocs, no copying => much speed */
+	size_t mempool_sizes[32];
+	size_t curr_mempool_cap;
+	size_t curr_mempool;
+} TokList;
+
+void toklist_init(TokList *l);
+void toklist_term(TokList *l);
+void toklist_append(TokList *l, Tok t);
+void toklist_del(TokList *l, TokListItem *from, TokListItem *to);
+void print_toks(TokList *l);
+
+#endif /* TOK_H */