Split FTP LIST parsing code into individual files for each listing style.

net/ftp/ftp_directory_listing_parser_vms.h

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.  Use of this
+// source code is governed by a BSD-style license that can be found in the
+// LICENSE file.
+
+#ifndef NET_FTP_FTP_DIRECTORY_LISTING_PARSER_VMS_H_
+#define NET_FTP_FTP_DIRECTORY_LISTING_PARSER_VMS_H_
+
+#include <queue>
+
+#include "net/ftp/ftp_directory_listing_parser.h"
+
+namespace net {
+
+// Parser for VMS-style directory listing (including variants).
+class FtpDirectoryListingParserVms : public FtpDirectoryListingParser {
+ public:
+  FtpDirectoryListingParserVms();
+
+  // FtpDirectoryListingParser methods:
+  virtual FtpServerType GetServerType() const { return SERVER_VMS; }
+  virtual bool ConsumeLine(const string16& line);
+  virtual bool OnEndOfInput();
+  virtual bool EntryAvailable() const;
+  virtual FtpDirectoryListingEntry PopEntry();
+
+ private:
+  // Consumes listing line which is expected to be a directory listing entry
+  // (and not a comment etc). Returns true on success.
+  bool ConsumeEntryLine(const string16& line);
+
+  enum State {
+    STATE_INITIAL,
+
+    // Indicates that we have received the header, like this:
+    // Directory SYS$SYSDEVICE:[ANONYMOUS]
+    STATE_RECEIVED_HEADER,
+
+    // Indicates that we have received the first listing entry, like this:
+    // MADGOAT.DIR;1              2   9-MAY-2001 22:23:44.85
+    STATE_ENTRIES,
+
+    // Indicates that we have received the last listing entry.
+    STATE_RECEIVED_LAST_ENTRY,
+
+    // Indicates that we have successfully received all parts of the listing.
+    STATE_END,
+  } state_;
+
+  // VMS can use two physical lines if the filename is long. The first line will
+  // contain the filename, and the second line everything else. Store the
+  // filename until we receive the next line.
+  string16 last_filename_;
+  bool last_is_directory_;
+
+  std::queue<FtpDirectoryListingEntry> entries_;
+
+  DISALLOW_COPY_AND_ASSIGN(FtpDirectoryListingParserVms);
+};
+
+}  // namespace net
+
+#endif  // NET_FTP_FTP_DIRECTORY_LISTING_PARSER_VMS_H_