From d4ca02adfbef30faca50c703ebebaa058f86bcf8 Mon Sep 17 00:00:00 2001
From: Geoff McLane <ubuntu@geoffair.info>
Date: Sun, 18 Jun 2017 20:06:24 +0200
Subject: [PATCH] Issue #567 - Branch 'issue-567-2' to move all 'style' to
 'head'

---
 src/clean.c   | 52 +++++++++++++++++++++++++++++++++++++++++++++++++++
 src/clean.h   |  2 ++
 src/tidylib.c |  3 +++
 3 files changed, 57 insertions(+)

diff --git a/src/clean.c b/src/clean.c
index 779ddec..3e09416 100644
--- a/src/clean.c
+++ b/src/clean.c
@@ -2647,6 +2647,58 @@ void TY_(FixAnchors)(TidyDocImpl* doc, Node *node, Bool wantName, Bool wantId)
     }
 }
 
+/* Issue #567 - move style elements from body to head */
+void TY_(CleanStyle)(TidyDocImpl* doc, Node *html)
+{
+    Node *node, *next, *head = NULL, *body = NULL;
+    Node *child;
+    if (!html)
+        return; /* oops, not given a start node */
+
+#if 0 /* this failed??? */
+    for (node = html->content; node != NULL; node = node->next)
+    {
+        if (nodeIsHEAD(node))
+            head = node;
+
+        if (nodeIsBODY(node))
+            body = node;
+    }
+#endif /* 0000000000000000000000  */
+    head = TY_(FindHEAD)( doc );
+    body = TY_(FindBody)( doc );
+
+    if (head != NULL && body != NULL)
+    {
+        /* found head and body */
+        for (node = body->content; node != NULL; node = next)
+        {
+            next = node->next;
+            if (nodeIsSTYLE(node))
+            {
+                TY_(RemoveNode)(node); /* unhool style node from body */
+                TY_(InsertNodeAtEnd)(head, node);   /* add to end of head */
+                /* TODO: Add warning */
+            }
+            else if (node->content)
+            {
+                for (child = node->content; child != NULL; child = child->content)
+                {
+                    if (nodeIsSTYLE(child))
+                    {
+                        TY_(RemoveNode)(child); /* unhool style node from body */
+                        TY_(InsertNodeAtEnd)(head, child);   /* add to end of head */
+                        /* TODO: Add warning */
+                        break;
+                    }
+
+                }
+
+            }
+        }
+    }
+}
+
 /*
  * local variables:
  * mode: c
diff --git a/src/clean.h b/src/clean.h
index 00d4923..eb659fd 100644
--- a/src/clean.h
+++ b/src/clean.h
@@ -78,5 +78,7 @@ void TY_(FixAnchors)(TidyDocImpl* doc, Node *node, Bool wantName, Bool wantId);
 void TY_(FixXhtmlNamespace)(TidyDocImpl* doc, Bool wantXmlns);
 void TY_(FixLanguageInformation)(TidyDocImpl* doc, Node* node, Bool wantXmlLang, Bool wantLang);
 
+/* Issue #567 - move style elements from body to head */
+void TY_(CleanStyle)(TidyDocImpl* doc, Node *html);
 
 #endif /* __CLEAN_H__ */
diff --git a/src/tidylib.c b/src/tidylib.c
index 00906ca..81c59d8 100755
--- a/src/tidylib.c
+++ b/src/tidylib.c
@@ -2011,6 +2011,9 @@ int         tidyDocCleanAndRepair( TidyDocImpl* doc )
     if (tidyXmlTags)
        return tidyDocStatus( doc );
 
+    /* Issue #567 - move style elements from body to head */
+    TY_(CleanStyle)(doc, &doc->root);
+
     /* simplifies <b><b> ... </b> ...</b> etc. */
     if ( mergeEmphasis )
         TY_(NestedEmphasis)( doc, &doc->root );