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[OP on mathjax-dev](https://groups.google.com/forum/#!topic/mathjax-dev/BpP3bF-NvaY)
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Starting example: `a+b+c` which might be realized as
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```html
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<math>
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<mi>a</mi>
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<mo>+</mo>
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<mi>b</mi>
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<mo>+</mo>
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<mi>c</mi>
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</math>
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```
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which would yield [a semantic tree](https://github.com/zorkow/speech-rule-engine/blob/sloan_branch/doc/grammar.tex0 looking like
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```
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+
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|--- a
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|--- b
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|--- c
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```
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which could be embedded as follows
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<math>
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<mrow data-math-semantic-parent="sum" data-math-semantic-children="3">
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<mi data-math-semantic-child>a</mi>
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<mo data-math-semantic-operator>+</mo>
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<mi data-math-semantic-child>b</mi>
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<mo data-math-semantic-operator>+</mo>
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<mi data-math-semantic-child>c</mi>
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</mrow>
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</math>
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In other words,
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* add mrows when necessary for semantic-tree-nodes with children
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* identify children
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* do some countin.
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The hope is that this simple parent/child structure works well recursively, e.g.,
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```
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a + b*d + c
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```
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i.e.,
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```html
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<math>
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<mi>a</mi>
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<mo>+</mo>
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<mi>b</mi>
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<mo>⋅</mo>
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<mi>d</mi>
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<mo>+</mo>
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<mi>c</mi>
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</math>
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```
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would lead to a semantic tree of
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```
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+
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|--- a
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|--- *
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| |--- b
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| |--- c
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|--- d
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```
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and we simply start from the leafs adding an mrow for * etc. to get
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```html
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<math>
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<mrow data-math-semantic-parent="sum" data-math-semantic-children="3">
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<mi data-math-semantic-child> a</mi>
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<mo data-math-semantic-operator>+</mo>
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<mrow data-math-semantic-parent="product" data-math-semantic-children="2">
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<mi data-math-semantic-child>b</mi>
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<mo data-math-semantic-operator>⋅</mo>
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<mi data-math-semantic-child>d</mi>
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</mrow>
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<mo data-math-semantic-operator>+</mo>
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<mi data-math-semantic-child>c</mi>
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</mrow>
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</math>
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```
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This is assuming the MathML tree numbering (IDs) that Neil, Davide and the folks at Texthelp designed.
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Questions:
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* Is this too simplistic?
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* Is adding mrows too destructive?
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* Do we need/want to be more destructive than that? |
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\ No newline at end of file |
