diff --git a/v0/buffer.c b/v0/buffer.c
deleted file mode 100644
index f7ccf23..0000000
--- a/v0/buffer.c
+++ /dev/null
@@ -1,63 +0,0 @@
-#include "buffer.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-
-typedef enum {
-	BUFFER_FILE,
-	BUFFER_STRING
-} BufferType;
-
-struct Buffer {
-	BufferType type;
-	union {
-		FILE* file;
-		struct {
-			const char* data;
-			size_t pos;
-		} string;
-	} source;
-};
-
-Buffer* buffer_open_file(const char* path) {
-	FILE* f = fopen(path, "r");
-	if (f == NULL)
-		return NULL;
-	Buffer* buf = malloc(sizeof(Buffer));
-	if (buf == NULL) {
-		fclose(f);
-		return NULL;
-	}
-	buf->type = BUFFER_FILE;
-	buf->source.file = f;
-	return buf;
-}
-
-Buffer* buffer_open_string(const char* string) {
-	Buffer* buf = malloc(sizeof(Buffer));
-	if (buf == NULL)
-		return NULL;
-	buf->type = BUFFER_STRING;
-	buf->source.string.data = string;
-	buf->source.string.pos = 0;
-	return buf;
-}
-
-void buffer_close(Buffer* buffer) {
-	if (buffer->type == BUFFER_FILE)
-		fclose(buffer->source.file);
-	free(buffer);
-}
-
-char buffer_read(Buffer* buffer) {
-	if (buffer->type == BUFFER_FILE) {
-		int c = fgetc(buffer->source.file);
-		return c == EOF ? (char)-1 : (char)c;
-	} else {
-		char c = buffer->source.string.data[buffer->source.string.pos];
-		if (c == '\0')
-			return (char)-1;
-		buffer->source.string.pos++;
-		return c;
-	}
-}
diff --git a/v0/buffer.h b/v0/buffer.h
deleted file mode 100644
index 9b5c8e3..0000000
--- a/v0/buffer.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/**
- * An interface that wraps files and strings.
- * Allows stream–like reading from it.
- */
-#ifndef BUFFER_H
-#define BUFFER_H
-
-/**
- * An interface to a source of textual data.
- */
-typedef struct Buffer Buffer;
-
-/**
- * Opens a file.
- * 
- * @param path The path to the file.
- * @returns The newly–opened buffer.
- */
-Buffer* buffer_open_file(const char* path);
-
-/**
- * Opens a string.
- * 
- * The string is not copied, and must not be free'd until the
- * buffer itself has been closed.
- * 
- * @param string The contents stored in the buffer.
- * @returns A newly–opened buffer that reads from the string.
- */
-Buffer* buffer_open_string(const char* string);
-
-/**
- * Closes the buffer.
- * 
- * @param buffer The buffer to close.
- */
-void buffer_close(Buffer* buffer);
-
-/**
- * Reads a single character from the buffer.
- * 
- * If there are no more characters in the buffer,
- * this returns `-1`.
- * 
- * @param buffer The buffer to read from.
- * @returns the next character in the buffer.
- */
-char buffer_read(Buffer* buffer);
-
-#endif