From 302bf1b523012e11b60425d6eee1221ebc2724eb Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <email@mattatobin.com>
Date: Sun, 3 Nov 2019 00:17:46 -0400
Subject: Issue #1258 - Part 1: Import mailnews, ldap, and mork from
 comm-esr52.9.1

---
 mailnews/imap/src/nsIMAPGenericParser.h | 76 +++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 mailnews/imap/src/nsIMAPGenericParser.h

(limited to 'mailnews/imap/src/nsIMAPGenericParser.h')

diff --git a/mailnews/imap/src/nsIMAPGenericParser.h b/mailnews/imap/src/nsIMAPGenericParser.h
new file mode 100644
index 000000000..34f66e4ff
--- /dev/null
+++ b/mailnews/imap/src/nsIMAPGenericParser.h
@@ -0,0 +1,76 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* 
+nsIMAPGenericParser is the base parser class used by the server parser and body shell parser
+*/ 
+
+#ifndef nsIMAPGenericParser_H
+#define nsIMAPGenericParser_H
+
+#include "nsImapCore.h"
+
+#define WHITESPACE " \015\012"     // token delimiter 
+
+
+class nsIMAPGenericParser 
+{
+
+public:
+	nsIMAPGenericParser();
+	virtual ~nsIMAPGenericParser();
+
+  // Add any specific stuff in the derived class
+  virtual bool       LastCommandSuccessful();
+
+  bool SyntaxError() { return (fParserState & stateSyntaxErrorFlag) != 0; }
+  bool ContinueParse() { return fParserState == stateOK; }
+  bool Connected() { return !(fParserState & stateDisconnectedFlag); }
+  void SetConnected(bool error);
+    
+protected:
+
+	// This is a pure virtual member which must be overridden in the derived class
+	// for each different implementation of a nsIMAPGenericParser.
+	// For instance, one implementation (the nsIMAPServerState) might get the next line
+	// from an open socket, whereas another implementation might just get it from a buffer somewhere.
+	// This fills in nextLine with the buffer, and returns true if everything is OK.
+	// Returns false if there was some error encountered.  In that case, we reset the parser.
+	virtual bool	GetNextLineForParser(char **nextLine) = 0;	
+
+  virtual void	HandleMemoryFailure();
+  void skip_to_CRLF();
+  void skip_to_close_paren();
+  char *CreateString();
+  char *CreateAstring();
+  char *CreateNilString();
+  char *CreateLiteral();
+  char *CreateAtom(bool isAstring = false);
+  char *CreateQuoted(bool skipToEnd = true);
+  char *CreateParenGroup();
+  virtual void SetSyntaxError(bool error, const char *msg);
+
+  void AdvanceToNextToken();
+  void AdvanceToNextLine();
+  void AdvanceTokenizerStartingPoint(int32_t bytesToAdvance);
+  void ResetLexAnalyzer();
+
+protected:
+	// use with care
+  const char     *fNextToken;
+  char           *fCurrentLine;
+	char					 *fLineOfTokens;
+  char           *fStartOfLineOfTokens;
+  char           *fCurrentTokenPlaceHolder;
+  bool            fAtEndOfLine;
+
+private:
+  enum nsIMAPGenericParserState { stateOK = 0,
+                                  stateSyntaxErrorFlag = 0x1,
+                                  stateDisconnectedFlag = 0x2 };
+  uint32_t fParserState;
+};
+
+#endif
-- 
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