Add stdio_reader to io, just use FILE* values for now. We have things to do.

src/lib/_io.rs

@@ -1,7 +1,26 @@
-import std.os;
+import std.os.libc;
 import std._str;
 import std._vec;
 
+
+type stdio_reader = unsafe obj {
+                           fn getc() -> int;
+};
+
+fn new_stdio_reader(str path) -> stdio_reader {
+  unsafe obj stdio_FILE_reader(os.libc.FILE f) {
+    fn getc() -> int {
+      ret os.libc.fgetc(f);
+    }
+    drop {
+      os.libc.fclose(f);
+    }
+  }
+  ret stdio_FILE_reader(os.libc.fopen(_str.buf(path),
+                                      _str.buf("r")));
+}
+
+
 type buf_reader = unsafe obj {
   fn read() -> vec[u8];
 };
@@ -130,3 +149,14 @@ fn file_writer(str path,
   }
   ret fw(new_buf_writer(path, flags));
 }
+
+//
+// Local Variables:
+// mode: rust
+// fill-column: 78;
+// indent-tabs-mode: nil
+// c-basic-offset: 4
+// buffer-file-coding-system: utf-8-unix
+// compile-command: "make -k -C .. 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
+// End:
+//

src/lib/linux_os.rs

@@ -8,6 +8,11 @@ native mod libc = "libc.so.6" {
   fn write(int fd, vbuf buf, uint count) -> int;
   fn close(int fd) -> int;
 
+  type FILE;
+  fn fopen(sbuf path, sbuf mode) -> FILE;
+  fn fclose(FILE f);
+  fn fgetc(FILE f) -> int;
+
   type dir;
   // readdir is a mess; handle via wrapper function in rustrt.
   fn opendir(sbuf d) -> dir;

src/lib/macos_os.rs

@@ -8,6 +8,11 @@ native mod libc = "libc.dylib" {
   fn write(int fd, vbuf buf, uint count) -> int;
   fn close(int fd) -> int;
 
+  type FILE;
+  fn fopen(sbuf path, sbuf mode) -> FILE;
+  fn fclose(FILE f);
+  fn fgetc(FILE f) -> int;
+
   type dir;
   // readdir is a mess; handle via wrapper function in rustrt.
   fn opendir(sbuf d) -> dir;

src/lib/win32_os.rs

@@ -6,6 +6,11 @@ native mod libc = "msvcrt.dll" {
   fn read(int fd, vbuf buf, uint count) -> int = "_read";
   fn write(int fd, vbuf buf, uint count) -> int = "_write";
   fn close(int fd) -> int = "_close";
+
+  type FILE;
+  fn fopen(sbuf path, sbuf mode) -> FILE;
+  fn fclose(FILE f);
+  fn fgetc(FILE f) -> int;
 }
 
 mod libc_constants {