From c65586bb921f0b7dbad818a057507609d59d4821 Mon Sep 17 00:00:00 2001
From: Vincent Sanders <vincent.sanders@collabora.co.uk>
Date: Tue, 3 Jul 2012 19:39:36 +0100
Subject: add hubbub_parser_insert_chunk

---
 include/hubbub/parser.h | 17 +++++++++++++++++
 src/parser.c            | 27 +++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/include/hubbub/parser.h b/include/hubbub/parser.h
index 06b8d7f..7d2fb1f 100644
--- a/include/hubbub/parser.h
+++ b/include/hubbub/parser.h
@@ -75,6 +75,23 @@ hubbub_error hubbub_parser_setopt(hubbub_parser *parser,
 /* This data is encoded in the input charset */
 hubbub_error hubbub_parser_parse_chunk(hubbub_parser *parser,
 		const uint8_t *data, size_t len);
+
+/**
+ * Insert a chunk of data into a hubbub parser input stream
+ *
+ * This data is encoded in the input charset
+ *
+ * Inserts the given data into the input stream ready for parsing but
+ * does not cause any additional processing of the input. This is
+ * useful to allow hubbub callbacks to add computed data to the input.
+ * 
+ * \param parser  Parser instance to use
+ * \param data    Data to parse (encoded in the input charset)
+ * \param len     Length, in bytes, of data
+ * \return HUBBUB_OK on success, appropriate error otherwise
+ */
+hubbub_error hubbub_parser_insert_chunk(hubbub_parser *parser,
+					const uint8_t *data, size_t len);
 /* Inform the parser that the last chunk of data has been parsed */
 hubbub_error hubbub_parser_completed(hubbub_parser *parser);
 
diff --git a/src/parser.c b/src/parser.c
index 9d54049..95216a3 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -199,6 +199,33 @@ hubbub_error hubbub_parser_setopt(hubbub_parser *parser,
 	return result;
 }
 
+/**
+ * Insert a chunk of data into a hubbub parser input stream
+ *
+ * Inserts the given data into the input stream ready for parsing but
+ * does not cause any additional processing of the input. This is
+ * useful to allow hubbub callbacks to add computed data to the input.
+ * 
+ * \param parser  Parser instance to use
+ * \param data    Data to parse (encoded in the input charset)
+ * \param len     Length, in bytes, of data
+ * \return HUBBUB_OK on success, appropriate error otherwise
+ */
+hubbub_error hubbub_parser_insert_chunk(hubbub_parser *parser,
+		const uint8_t *data, size_t len)
+{
+	parserutils_error perror;
+
+	if (parser == NULL || data == NULL)
+		return HUBBUB_BADPARM;
+
+	perror = parserutils_inputstream_insert(parser->stream, data, len);
+	if (perror != PARSERUTILS_OK)
+		return hubbub_error_from_parserutils_error(perror);
+
+	return HUBBUB_OK;
+}
+
 /**
  * Pass a chunk of data to a hubbub parser for parsing
  *
-- 
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