Add: Discovery phase added

Add: StringPool, StringView

src/string.h

@@ -0,0 +1,32 @@
+#ifndef STRING_H
+#define STRING_H
+
+#include "memory.h"
+
+#include <stddef.h>
+
+#define SV(sp, s) string_create(sp, s, sizeof(s) - 1)
+
+struct StringPool
+{
+  Arena* a;
+};
+
+struct StringView
+{
+  const char* buf;
+  size_t len;
+};
+
+typedef struct StringPool StringPool;
+typedef struct StringView StringView;
+
+StringPool string_pool_create(Arena* a);
+void string_pool_reset(StringPool* sp);
+
+StringView string_create(StringPool* sp, const char* s, size_t len);
+
+// Ensure that lengths do not contain null term
+StringView string_createcat_ss(StringPool* sp, StringView* a, StringView* b);
+
+#endif