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  • MathJax
  • MathJax
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  • #1050
Closed
Open
Issue created Feb 09, 2015 by Peter Krautzberger@pkraContributor

NativeMML tweaks on WebKit

For when we get a chance to revisit the NativeMML tweaks for WebKit. Some tweaks now have the adverse effect.

Some examples:

  1. Stretchy parentheses
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
        <mrow>
          <mo>(</mo>
          <mtable>
            <mtr>
              <mtd columnalign="center">
                <mrow>
                  <mo>(</mo>
                  <mtable>
                    <mtr>
                      <mtd columnalign="center">
                        <mi>a</mi>
                      </mtd>
                      <mtd columnalign="center">
                        <mi>b</mi>
                      </mtd>
                    </mtr>
                    <mtr>
                      <mtd columnalign="center">
                        <mi>c</mi>
                      </mtd>
                      <mtd columnalign="center">

                        <mi>d</mi>

                      </mtd>
                    </mtr>
                  </mtable>
                  <mo>)</mo>
                </mrow>
              </mtd>
              <mtd columnalign="center">
                <mrow>
                  <mo>(</mo>
                  <mtable>
                    <mtr>
                      <mtd columnalign="center">
                        <mi>e</mi>
                      </mtd>
                      <mtd columnalign="center">
                        <mi>f</mi>
                      </mtd>
                    </mtr>
                    <mtr>
                      <mtd columnalign="center">
                        <mi>g</mi>
                      </mtd>
                      <mtd columnalign="center">
                        <mi>h</mi>
                      </mtd>
                    </mtr>
                  </mtable>
                  <mo>)</mo>
                </mrow>
              </mtd>
            </mtr>
            <mtr>
              <mtd columnalign="center">
                <mn>0</mn>
              </mtd>
              <mtd columnalign="center">
                <mrow>
                  <mo>(</mo>
                  <mtable>
                    <mtr>
                      <mtd columnalign="center">
                        <mi>i</mi>
                      </mtd>
                      <mtd columnalign="center">
                        <mi>j</mi>
                      </mtd>
                    </mtr>
                    <mtr>
                      <mtd columnalign="center">
                        <mi>k</mi>
                      </mtd>
                      <mtd columnalign="center">
                        <mi>l</mi>
                      </mtd>
                    </mtr>
                  </mtable>
                  <mo>)</mo>
                </mrow>
              </mtd>
            </mtr>
          </mtable>
          <mo>)</mo>
        </mrow>
      </math>

becomes

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
    <mrow>
        <mo style="-webkit-margin-start: 0em; -webkit-margin-end: 0em;">(</mo>
        <mtable>
            <mtr>
                <mtd columnalign="center" style="padding: 0px;">
                    <mrow>
                        <mo style="-webkit-margin-start: 0em; -webkit-margin-end: 0em;">(</mo>
                        <mtable>
                            <mtr>
                                <mtd columnalign="center" style="padding: 0px;">
                                    <mi>a</mi>
                                </mtd>
                                <mtd columnalign="center" style="padding: 0px 0px 0px 0.8em;">
                                    <mi>b</mi>
                                </mtd>
                            </mtr>
                            <mtr>
                                <mtd columnalign="center" style="padding: 1ex 0px 0px;">
                                    <mi>c</mi>
                                </mtd>
                                <mtd columnalign="center" style="padding: 1ex 0px 0px 0.8em;">
                                    <mi>d</mi>
                                </mtd>
                            </mtr>
                        </mtable>
                        <mo style="-webkit-margin-start: 0em; -webkit-margin-end: 0em;">)</mo>
                    </mrow>
                </mtd>
                <mtd columnalign="center" style="padding: 0px 0px 0px 0.8em;">
                    <mrow>
                        <mo style="-webkit-margin-start: 0em; -webkit-margin-end: 0em;">(</mo>
                        <mtable>
                            <mtr>
                                <mtd columnalign="center" style="padding: 0px;">
                                    <mi>e</mi>
                                </mtd>
                                <mtd columnalign="center" style="padding: 0px 0px 0px 0.8em;">
                                    <mi>f</mi>
                                </mtd>
                            </mtr>
                            <mtr>
                                <mtd columnalign="center" style="padding: 1ex 0px 0px;">
                                    <mi>g</mi>
                                </mtd>
                                <mtd columnalign="center" style="padding: 1ex 0px 0px 0.8em;">
                                    <mi>h</mi>
                                </mtd>
                            </mtr>
                        </mtable>
                        <mo style="-webkit-margin-start: 0em; -webkit-margin-end: 0em;">)</mo>
                    </mrow>
                </mtd>
            </mtr>
            <mtr>
                <mtd columnalign="center" style="padding: 1ex 0px 0px;">
                    <mn>0</mn>
                </mtd>
                <mtd columnalign="center" style="padding: 1ex 0px 0px 0.8em;">
                    <mrow>
                        <mo style="-webkit-margin-start: 0em; -webkit-margin-end: 0em;">(</mo>
                        <mtable>
                            <mtr>
                                <mtd columnalign="center" style="padding: 0px;">
                                    <mi>i</mi>
                                </mtd>
                                <mtd columnalign="center" style="padding: 0px 0px 0px 0.8em;">
                                    <mi>j</mi>
                                </mtd>
                            </mtr>
                            <mtr>
                                <mtd columnalign="center" style="padding: 1ex 0px 0px;">
                                    <mi>k</mi>
                                </mtd>
                                <mtd columnalign="center" style="padding: 1ex 0px 0px 0.8em;">
                                    <mi>l</mi>
                                </mtd>
                            </mtr>
                        </mtable>
                        <mo style="-webkit-margin-start: 0em; -webkit-margin-end: 0em;">)</mo>
                    </mrow>
                </mtd>
            </mtr>
        </mtable>
        <mo style="-webkit-margin-start: 0em; -webkit-margin-end: 0em;">)</mo>
    </mrow>
</math>

Which actually won't stretch the inner matrices's brackets.

  1. Multiscripts
<math xmlns="http://www.w3.org/1998/Math/MathML" style="font-size: 24pt" display="block">
        <mrow>
          <munderover>
            <mmultiscripts>
              <mo>∏</mo>
              <mmultiscripts>
                <mi>𝔈</mi>
                <mi>υ</mi>
                <mi>τ</mi>
                <mprescripts></mprescripts>
                <mi>ρ</mi>
                <mi>σ</mi>
              </mmultiscripts>
              <mmultiscripts>
                <mi>𝔇</mi>
                <mi>π</mi>
                <mi>ο</mi>
                <mprescripts></mprescripts>
                <mi>ν</mi>
                <mi>ξ</mi>
              </mmultiscripts>
              <mprescripts></mprescripts>
              <mmultiscripts>
                <mi>𝔄</mi>
                <mi>δ</mi>
                <mi>γ</mi>
                <mprescripts></mprescripts>
                <mi>α</mi>
                <mi>β</mi>
              </mmultiscripts>
              <mmultiscripts>
                <mi>𝔅</mi>
                <mi>θ</mi>
                <mi>η</mi>
                <mprescripts></mprescripts>
                <mi>ε</mi>
                <mi>ζ</mi>
              </mmultiscripts>
            </mmultiscripts>
            <mmultiscripts>
              <mi>𝔉</mi>
              <mi>ω</mi>
              <mi>ψ</mi>
              <mprescripts></mprescripts>
              <mi>ϕ</mi>
              <mi>χ</mi>
            </mmultiscripts>
            <mmultiscripts>
              <mi>ℭ</mi>
              <mi>μ</mi>
              <mi>λ</mi>
              <mprescripts></mprescripts>
              <mi>ι</mi>
              <mi>κ</mi>
            </mmultiscripts>
          </munderover>
        </mrow>
      </math>

produces a processing error.

  1. iterated surds
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <mrow>
    <msqrt>
      <mn>1</mn>
      <mo>+</mo>
      <msqrt>
        <mn>1</mn>
        <mo>+</mo>
        <msqrt>
          <mn>1</mn>
          <mo>+</mo>
          <msqrt>
            <mn>1</mn>
            <mo>+</mo>
            <msqrt>
              <mn>1</mn>
              <mo>+</mo>
              <msqrt>
                <mn>1</mn>
                <mo>+</mo>
                <msqrt>
                  <mn>1</mn>
                  <mo>+</mo>
                  <mi>x</mi>
                </msqrt>
              </msqrt>
            </msqrt>
          </msqrt>
        </msqrt>
      </msqrt>
    </msqrt>
  </mrow>
</math>

becomes

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
    <mrow>
        <msqrt>
            <mn>1</mn>
            <mo style="-webkit-margin-start: 0.2667em; -webkit-margin-end: 0.2667em;">+</mo>
            <msqrt>
                <mn>1</mn>
                <mo style="-webkit-margin-start: 0.2667em; -webkit-margin-end: 0.2667em;">+</mo>
                <msqrt>
                    <mn>1</mn>
                    <mo style="-webkit-margin-start: 0.2667em; -webkit-margin-end: 0.2667em;">+</mo>
                    <msqrt>
                        <mn>1</mn>
                        <mo style="-webkit-margin-start: 0.2667em; -webkit-margin-end: 0.2667em;">+</mo>
                        <msqrt>
                            <mn>1</mn>
                            <mo style="-webkit-margin-start: 0.2667em; -webkit-margin-end: 0.2667em;">+</mo>
                            <msqrt>
                                <mn>1</mn>
                                <mo style="-webkit-margin-start: 0.2667em; -webkit-margin-end: 0.2667em;">+</mo>
                                <msqrt>
                                    <mn>1</mn>
                                    <mo style="-webkit-margin-start: 0.2667em; -webkit-margin-end: 0.2667em;">+</mo>
                                    <mi>x</mi>
                                </msqrt>
                            </msqrt>
                        </msqrt>
                    </msqrt>
                </msqrt>
            </msqrt>
        </msqrt>
    </mrow>
</math>

which renders badly.

I'll collect more as I come across them.

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