1 files changed, 198 insertions, 0 deletions
diff --git a/rfc2045/rfc3676parser.h b/rfc2045/rfc3676parser.h
new file mode 100644
index 0000000..6125082
--- /dev/null
+++ b/rfc2045/rfc3676parser.h
@@ -0,0 +1,198 @@
+#ifndef	rfc3676_h
+#define	rfc3676_h
+/*
+** Copyright 2011 Double Precision, Inc.  See COPYING for
+** distribution information.
+*/
+
+/*
+*/
+
+#include	"rfc2045/rfc2045_config.h"
+#include	"unicode/unicode.h"
+#include	<stdlib.h>
+#include	<string.h>
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#if 0
+}
+#endif
+
+typedef struct rfc3676_parser_struct *rfc3676_parser_t;
+
+/*
+** Structure passed to rfc3676_parser_init().
+*/
+
+struct rfc3676_parser_info {
+
+	const char *charset;
+	/*
+	** MIME charset parameter. String not used after rfc3676_parser_init()
+	** returns.
+	*/
+
+	/* MIME format flowed flag set */
+	int isflowed;
+
+	/* MIME delsp=yes flag is set */
+	int isdelsp;
+
+	/*
+	** Callback - start of a line.
+	**
+	** If this callback returns 0, normal parsing continues. If this
+	** callback returns a non-0 value, parsing stops and
+	** rfc3676_parse() or rfc3676_deinit() returns the non-0 value.
+	*/
+
+	int (*line_begin)(size_t quote_level, /* Line's quote level */
+			  void *arg);
+
+	/*
+	** Callback - contents of the line, converted to unicode.
+	** May be invoked multiple times, consecutively.
+	**
+	** If this callback returns 0, normal parsing continues. If this
+	** callback returns a non-0 value, parsing stops and
+	** rfc3676_parse() or rfc3676_deinit() returns the non-0 value.
+	*/
+
+	int (*line_contents)(const unicode_char *txt, /* Contents */
+			     size_t txt_size,
+			     /* Count of unicode chars in txt */
+			     void *arg);
+	/*
+	** Optional callback. If not NULL, it gets invoked when
+	** a line is logically flowed into the next physical line.
+	*/
+
+	int (*line_flowed_notify)(void *);
+
+	/*
+	** End of the line's contents.
+	**
+	** If this callback returns 0, normal parsing continues. If this
+	** callback returns a non-0 value, parsing stops and
+	** rfc3676_parse() or rfc3676_deinit() returns the non-0 value.
+	*/
+
+	int (*line_end)(void *arg);
+
+	/* Argument passed through to the above callback methods */
+
+	void *arg;
+};
+
+/*
+** Begin parsing.
+**
+** Returns an opaque parsing handle.
+*/
+rfc3676_parser_t rfc3676parser_init(const struct rfc3676_parser_info *info);
+
+/*
+** Parse next part of rfc3676-encoded message.
+**
+** Returns non-0 value returned by any callback method, or 0 if all
+** invoked callback methods returned 0.
+*/
+
+int rfc3676parser(rfc3676_parser_t handle,
+		  const char *txt,
+		  size_t txt_cnt);
+
+/*
+** End parsing.
+**
+** The handle gets destroyed, and the parsing finishes.
+**
+** NOTE: rfc3676_deinit() WILL LIKELY invoke some leftover callback methods.
+**
+** Returns non-0 value returned by any callback method, or 0 if all
+** invoked callback methods returned 0.
+*/
+
+int rfc3676parser_deinit(rfc3676_parser_t handle,
+
+			 /*
+			 ** Optional, if not NULL, set to indicate unicode
+			 ** error.
+			 */
+			 int *errptr);
+
+#if 0
+{
+#endif
+
+#ifdef  __cplusplus
+}
+
+namespace mail {
+
+	extern "C" int tpp_trampoline_line_begin(size_t, void *);
+
+	extern "C" int tpp_trampoline_line_contents(const unicode_char *,
+						    size_t, void *);
+
+	extern "C" int tpp_trampoline_line_flowed_notify(void *);
+
+	extern "C" int tpp_trampoline_line_end(void *);
+
+	/*
+	** C++ binding for the parser logic
+	*/
+	class textplainparser {
+
+		rfc3676_parser_t handle;
+
+	public:
+		textplainparser();
+		~textplainparser();
+
+		/*
+		** Begin parsing. Returns FALSE if the parsing could
+		** not be initialized (probably unknown charset).
+		*/
+		bool begin(const std::string &charset,
+			   bool flowed,
+			   bool delsp);
+
+		void end(
+			 /*
+			 ** Set to true if a unicode conversion error occured.
+			 */
+			 bool &unicode_errflag);
+
+		void end()
+		{
+			bool dummy;
+
+			return end(dummy);
+		}
+
+		/* Feed raw contents to be parsed */
+		void operator<<(const std::string &text)
+		{
+			if (handle)
+				rfc3676parser(handle, text.c_str(),
+					      text.size());
+		}
+
+
+		virtual void line_begin(size_t);
+
+		virtual void line_contents(const unicode_char *,
+					   size_t);
+
+		virtual void line_flowed_notify();
+
+		virtual void line_end();
+	};
+}
+#endif
+
+#endif