Add syntax parser and integrate lexical analysis

include/parser.h

@@ -0,0 +1,18 @@
+#ifndef BL_CETI_PARSER_H
+#define BL_CETI_PARSER_H
+
+#include "lexer.h"
+
+#include <stdbool.h>
+#include <stddef.h>
+
+typedef struct {
+    char code[6];
+    char message[160];
+    size_t line;
+    size_t column;
+} BlParseError;
+
+bool bl_parse(const BlToken *tokens, size_t count, BlParseError *error);
+
+#endif