1 files changed, 10 insertions, 2 deletions
diff --git a/src/fspec/lexer.h b/src/fspec/lexer.h
index 7b60e6b..ef6e059 100644
--- a/src/fspec/lexer.h
+++ b/src/fspec/lexer.h
@@ -2,14 +2,22 @@
 
 #include <fspec/memory.h>
 
+#include <stdbool.h>
+
+enum fspec_lexer_section {
+   FSPEC_SECTION_DATA,
+   FSPEC_SECTION_CODE,
+};
+
 struct fspec_lexer;
 struct fspec_lexer {
    struct {
-      size_t (*read)(struct fspec_lexer *lexer, void *ptr, const size_t size, const size_t nmemb);
+      size_t (*read)(struct fspec_lexer *lexer, void *input, const size_t size, const size_t nmemb);
+      size_t (*write)(struct fspec_lexer *lexer, const enum fspec_lexer_section section, const void *output, const size_t size, const size_t nmemb);
    } ops;
 
    struct {
-      struct fspec_mem input, output;
+      struct fspec_mem input;
    } mem;
 };