html: Chunk text data in push parser

Follow the logic of the XML parser and chunk large text nodes.

HTMLparser.c

diff --git a/HTMLparser.c b/HTMLparser.c
index 92ccd43..211256b 100644
--- a/HTMLparser.c
+++ b/HTMLparser.c
@@ -3113,6 +3113,7 @@
             case '<':
                 if (mode == 0) {
                     done = 1;
+                    complete = 1;
                     goto next_chunk;
                 }
                 if (mode == DATA_PLAINTEXT)
@@ -5146,16 +5147,16 @@
                 } else {
                     ctxt->instate = XML_PARSER_CONTENT;
                     /*
-                     * check that the text sequence is complete
-                     * before handing out the data to the parser
-                     * to avoid problems with erroneous end of
-                     * data detection.
+                     * We follow the logic of the XML push parser
                      */
-                    if ((!terminate) &&
-                        (htmlParseLookupString(ctxt, 0, "<", 1, 0) < 0))
-                        return;
+		    if (avail < HTML_PARSER_BIG_BUFFER_SIZE) {
+                        if ((!terminate) &&
+                            (htmlParseLookupString(ctxt, 0, "<", 1, 0) < 0))
+                            return;
+                    }
                     ctxt->checkIndex = 0;
-                    htmlParseCharData(ctxt, /* partial */ 0);
+                    if (htmlParseCharData(ctxt, !terminate) == 0)
+                        return;
 		}
 
 		break;

runtest.c

diff --git a/runtest.c b/runtest.c
index f6bb967..f1d7a75 100644
--- a/runtest.c
+++ b/runtest.c
@@ -2256,9 +2256,13 @@
                 if ((options & XML_PARSE_HTML) &&
                     (ctxt->endCheckState)) {
                     max = strlen((const char *) ctxt->name) + 2;
+                } else if (c == '&') {
+                    max = (options & XML_PARSE_HTML) ? 32 : 1;
+                } else if (c == '<') {
+                    max = 1;
                 } else {
                     /* 3 bytes for partial UTF-8 */
-                    max = ((c == '<') || (c == '&')) ? 1 : 3;
+                    max = 3;
                 }
             } else if (ctxt->instate == XML_PARSER_CDATA_SECTION) {
                 /* 2 bytes for terminator, 3 bytes for UTF-8 */