Various fixes & hacks to make it understand today's web pages. (2008-11-27)
Lubomir Rintel <lkundrak@v3.sk>

HTMIME.c
	Chuck ;charset=..., which would make us not understand the mime type.
	We don't do any charset conversions anyways.

HTInit.c
	Accept XHTML as HTML.

HTMLformat.c
	Don't terminate head on junk tags such as META or STYLE.
	They're better hidden if we don't grok them.

HTMLparse.c
	Accept singly quoted argument values.

--- Mosaic-src.orig/libwww2/HTMIME.c	1996-06-27 02:22:36.000000000 +0200
+++ Mosaic-src/libwww2/HTMIME.c	2008-11-27 21:24:06.000000000 +0100
@@ -569,11 +569,14 @@ PRIVATE void HTMIME_put_character ARGS2(
               if (www2Trace)
                 fprintf (stderr, "[MIME_put_char] Got content-type value '%s'\n", me->value);
 #endif
-              /* Lowercase it. */
+              /* Lowercase it and strip charset. */
               {
                 char *tmp;
                 for (tmp = me->value; *tmp; tmp++)
-                  *tmp = TOLOWER (*tmp);
+                  if (*tmp == ';')
+                    *tmp = '\0';
+                  else
+                    *tmp = TOLOWER (*tmp);
               }
 #ifndef DISABLE_TRACE
               if (www2Trace)
--- Mosaic-src.orig/libwww2/HTInit.c	1996-06-27 02:22:34.000000000 +0200
+++ Mosaic-src/libwww2/HTInit.c	2008-11-27 21:30:34.000000000 +0100
@@ -56,6 +56,12 @@ PUBLIC void HTFormatInit NOARGS
   HTSetConversion("text/plain", "www/present", HTPlainPresent,	1.0, 0.0, 0.0);
   HTSetConversion("application/x-wais-source", "*", HTWSRCConvert, 1.0, 0.0, 0.0);
 
+  /* XHTML */
+  HTSetConversion("text/xhtml", "www/present", HTMosaicHTMLPresent, 1.0, 0.0, 0.0);
+  HTSetConversion("text/xhtml+xml", "www/present", HTMosaicHTMLPresent, 1.0, 0.0, 0.0);
+  HTSetConversion("application/xhtml", "www/present", HTMosaicHTMLPresent, 1.0, 0.0, 0.0);
+  HTSetConversion("application/xhtml+xml", "www/present", HTMosaicHTMLPresent, 1.0, 0.0, 0.0);
+
   /* These should override everything else. */
   HTLoadTypesConfigFile (personal_type_map);
 
--- Mosaic-src.orig/libhtmlw/HTMLformat.c	1996-07-18 09:49:26.000000000 +0200
+++ Mosaic-src/libhtmlw/HTMLformat.c	2008-11-28 10:02:14.000000000 +0100
@@ -3448,16 +3448,6 @@ TriggerMarkChanges(hw, mptr, x, y)
 	type = mark->type;
 	font = NULL;
 
-	/* If we are not in a tag that belongs in the HEAD, end the HEAD
-	   section  - amb */
-	if (InDocHead)
-	  if ((type != M_TITLE)&&(type != M_NONE)&&(type != M_BASE)&&
-	      (type != M_INDEX)&&(type != M_COMMENT))
-	      {
-		Ignore = 0;
-		InDocHead = 0;
-	      }
-	
 	/*
 	 * If Ignore is set, we ignore all further elements until we get to the
 	 * end of the Ignore
--- Mosaic-src.orig/libhtmlw/HTMLparse.c	1996-06-27 01:37:04.000000000 +0200
+++ Mosaic-src/libhtmlw/HTMLparse.c	2008-11-28 10:35:49.000000000 +0100
@@ -1436,10 +1436,12 @@ AnchorTag(ptrp, startp, endp)
 	char *ptr;
 	char *start;
 	char tchar;
-	int quoted;
+	int double_quoted;
+	int single_quoted;
 	int has_value;
 
-	quoted = 0;
+	double_quoted = 0;
+	single_quoted = 0;
 
 	/*
 	 * remove leading spaces, and set start
@@ -1508,7 +1510,13 @@ AnchorTag(ptrp, startp, endp)
 
 	if (*ptr == '\"')
 	{
-		quoted = 1;
+		double_quoted = 1;
+		ptr++;
+	}
+
+	if (*ptr == '\'')
+	{
+		single_quoted = 1;
 		ptr++;
 	}
 
@@ -1516,13 +1524,20 @@ AnchorTag(ptrp, startp, endp)
 	/*
 	 * Get tag value.  Either a quoted string or a single word
 	 */
-	if (quoted)
+	if (double_quoted)
 	{
 		while ((*ptr != '\"')&&(*ptr != '\0'))
 		{
 			ptr++;
 		}
 	}
+	else if (single_quoted)
+	{
+		while ((*ptr != '\'')&&(*ptr != '\0'))
+		{
+			ptr++;
+		}
+	}
 	else
 	{
 		while ((!isspace((int)*ptr))&&(*ptr != '\0'))
@@ -1564,7 +1579,7 @@ AnchorTag(ptrp, startp, endp)
 
 	/* If you forgot the end quote, you need to make sure you aren't
 		indexing ptr past the end of its own array -- SWP */
-	if (quoted && *ptr!='\0')
+	if ((single_quoted || double_quoted) && *ptr!='\0')
 	{
 		ptr++;
 	}