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New Vocabularies Solution

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Revision as of 20:04, 3 April 2008 by Hixie (talk | contribs)
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this doesn't handle these cases well:

<table><math></html><!-- x --> (</html> should be ignored)
<table><td><math></html><!-- x --> (ditto)
<table><caption><math></html><!-- x --> (ditto)
<table><caption><math><mtext><caption>x (<caption> should start new caption)
<em><button><math></em>x (</em> should be ignored)

to fix these we'll need a secondary insertion mode which is set whenever the insertion mode is set to "in math/svg", including in the reset algorithm (just jump down to the secondary steps and continue the walk up until you hit either the root, or a caption, td/th, or table)

what about:

<table><caption><math><mrow><mtext><svg><circle></mrow>
<table><caption><math><mtext><svg><circle><caption>

check that those are handled right. maybe we need a stack for the insertion mode which is "{svg|math}*, {cell|caption|table|body}"

resetting appropriately:

  • if current node is in the mathml namespace and is one of <mi>, <mo>, <mn>, <ms>, <mtext>, "in namespace content"
  • if current node is in a namespace other than html, "in namespace"

tokeniser:

  • tokeniser changes so that when insertion mode is "in namespace", support CDATA blocks.
  • tokeniser keeps track of /> endings.
  • we add all the MathML entities to the entity list.
  • φ works differently when in "in math" or "in math content".

"in body":

  • "math" element:
    1. insert math element in mathml namespace
    2. switch to "in namespace", with secondary mode set to whatever insertion mode used to be
    3. if the tag had a closing slash, imply a closing tag with the same tag name
  • "svg" element
    1. insert svg element in svg namespace
    2. switch to "in namespace", with secondary mode set to whatever insertion mode used to be
    3. if the tag had a closing slash, imply a closing tag with the same tag name

"in namespace":

  • comment
    1. insert comment
  • text:
    1. insert text
  • doctype
    1. parse error
  • if current node namespace is mathml and token is start tag for: <mi>, <mo>, <mn>, <ms>, <mtext>
  • if current node namespace is svg and token is start tag for: <foreignobject>, <desc>, <title>
    1. if namespace is svg, apply case fixups
    2. insert element for token
    3. switch to "in namespace content"
    4. if the tag had a closing slash, imply a closing tag with the same tag name
  • start tag for one of: (html elements)
  • end tag for one of:

    ,
    1. pop nodes until the current node is in the html namespace
    2. switch to the secondary mode
    3. reprocess token
  • other start tag
    1. if namespace is svg, apply case fixups
    2. insert element for token, in same namespace as current node
    3. if the tag had a closing slash, imply a closing tag with the same tag name
  • end tag
    1. let n be current node
    2. if n is the top of the stack, parse error (fragment case)
    3. if lowercase(n.tagName) matches token's tag name:
      1. if n is not the current node, this is a parse error
      2. if n's namespace is the html namespace:
        1. pop current node until current node is an html namespace element
        2. switch to the secondary mode
        3. reprocess token
        4. abort
      3. otherwise, n is not in the html namespace:
        1. pop current node until n is popped
        2. abort
    4. let n be the node above n in the stack
    5. if n is not in scope, parse error, abort
    6. return to step 2.


"in namespace content":

  • if currentnode is mathml and start tag for one of: mglyph malignmark
    1. insert element for token, treat as void
  • other start tag
    1. treat as in the secondary mode
  • end tag
    1.  ???


MathML error handling in text/html

Require the following behaviour, since MathML requires the host language to define error handling:

  • An element with the wrong number or type of children must render as an error indicator. (list cases)
  • a sequence of one or more text nodes containing non-inter-element-whitespace must be treated as <mtext>

Interaction of MathML and CSS ('display')

...