1 files changed, 42 insertions, 0 deletions
diff --git a/src/fspec/ragel/lexer-stack.h b/src/fspec/ragel/lexer-stack.h
new file mode 100644
index 0000000..eebf055
--- /dev/null
+++ b/src/fspec/ragel/lexer-stack.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include "util/membuf.h"
+
+#include <stdint.h>
+
+struct varbuf {
+   struct membuf buf;
+   size_t offset;
+};
+
+void
+varbuf_begin(struct varbuf *var);
+
+void
+varbuf_reset(struct varbuf *var);
+
+void
+varbuf_remove_last(struct varbuf *var);
+
+struct stack {
+   struct varbuf var;
+
+   union {
+      struct fspec_mem str;
+      uint64_t num;
+   };
+
+   enum stack_type {
+      STACK_STR,
+      STACK_NUM,
+   } type;
+};
+
+void
+stack_num(struct stack *stack, const uint8_t base);
+
+const struct fspec_mem*
+stack_get_str(const struct stack *stack);
+
+uint64_t
+stack_get_num(const struct stack *stack);