misc/kforth: Starting work on the parser.

Makefile

@@ -1,6 +1,7 @@
 CXXSTD :=	c++11
 CXXFLAGS :=	-std=$(CXXSTD) -Wall -Werror -g -O0
 OBJS :=		linux/io.o	\
+		parser.o	\
 		kforth.o
 TARGET :=	kforth
 

kforth.cc

@@ -1,4 +1,5 @@
 #include "io.h"
+#include "parser.h"
 
 #ifdef __linux__
 #include "linux.h"

linux/defs.h

@@ -2,6 +2,6 @@
 #define __KF_LINUX_DEFS_H__
 
 #include <stddef.h>
-
+#include <stdint.h>
 
 #endif

parser.cc

@@ -0,0 +1,17 @@
+#include "defs.h"
+#include "parser.h"
+
+int
+parse_next(const char *buf, const size_t length, size_t *offset,
+	   struct Token *token)
+{
+	size_t	start = *offset;
+	bool	ok = false;
+
+	// TODO(skip past whitespace)
+	// TODO(find next EOC)
+	if (!ok) {
+		*offset = start;
+	}
+	return -1;
+}

parser.h

@@ -0,0 +1,14 @@
+#ifndef __KF_PARSER_H__
+#define __KF_PARSER_H__
+
+#include "defs.h"
+
+struct Token {
+	char	*token;
+	uint8_t	 length;
+};
+
+int	parse_next(const char *, const size_t, size_t *, struct Token *);
+
+
+#endif // __KF_PARSER_H__