Update web-platform-tests to revision e51f414776c4e7efa7cfa5fe63a3a8b3969e06ac

tests/wpt/web-platform-tests/html/canvas/tools/specextract.py

@@ -0,0 +1,68 @@
+import html5lib
+import html5lib.treebuilders.dom
+import re
+
+# Expected use:
+#   curl --compressed https://html.spec.whatwg.org/multipage/canvas.html >current-work
+#   python specextract.py
+#
+# Generates current-work-canvas.xhtml, for use by gentest.py to create the annotated spec document
+
+def extract():
+    parser = html5lib.html5parser.HTMLParser(tree=html5lib.getTreeBuilder("dom"))
+    doc = parser.parse(open('current-work', "r"), transport_encoding='utf-8')
+
+    head = doc.getElementsByTagName('head')[0]
+    for n in head.childNodes:
+        if n.tagName == 'script':
+            head.removeChild(n)
+
+    header = doc.getElementsByTagName('header')[0]
+    #thecanvas = doc.getElementById('the-canvas') # doesn't work (?!)
+    thecanvas = [ n for n in doc.getElementsByTagName('h4') if n.getAttribute('id') == 'the-canvas-element' ][0]
+
+    # Add copyright from https://html.spec.whatwg.org/multipage/acknowledgements.html#acknowledgments
+    copy = doc.createElement('p')
+    copy.setAttribute('class', 'copyright')
+    copy.appendChild(doc.createTextNode(u'Parts of this specification are \xA9 Copyright 2004-2014 Apple Inc., Mozilla Foundation, and Opera Software ASA. You are granted a license to use, reproduce and create derivative works of this document.'))
+    header.appendChild(copy)
+
+    keep = [header, thecanvas]
+    node = thecanvas.nextSibling
+    while node.nodeName != 'nav':
+        keep.append(node)
+        node = node.nextSibling
+    p = thecanvas.parentNode
+    for n in p.childNodes[:]:
+        if n not in keep:
+            p.removeChild(n)
+
+    for n in header.childNodes[3:-4]:
+        header.removeChild(n)
+
+    def make_absolute(url):
+        match = re.match(r'(\w+:|#)', url)
+        if match:
+            return url
+        elif url[0] == '/':
+            return 'https://html.spec.whatwg.org' + url
+        else:
+            return 'https://html.spec.whatwg.org/multipage/' + url
+
+    # Fix relative URLs
+    for e in doc.getElementsByTagName('script'):
+        e.setAttribute('src', make_absolute(e.getAttribute('src')))
+    for e in doc.getElementsByTagName('iframe'):
+        e.setAttribute('src', make_absolute(e.getAttribute('src')))
+    for e in doc.getElementsByTagName('img'):
+        e.setAttribute('src', make_absolute(e.getAttribute('src')))
+    for e in doc.getElementsByTagName('a'):
+        e.setAttribute('href', make_absolute(e.getAttribute('href')))
+
+    # Convert to XHTML, because it's quicker to re-parse than HTML5
+    doc.documentElement.setAttribute('xmlns', 'http://www.w3.org/1999/xhtml')
+    doc.removeChild(doc.firstChild) # remove the DOCTYPE
+
+    open('current-work-canvas.xhtml', 'w').write(doc.toxml(encoding = 'UTF-8'))
+
+extract()