href rendering error with underscore

[ghost]

the example is http://library.geo.jp/geodesy/7_00.html ¥href{7_49.html}{7.49} is rendered as "7_4 9.html", unnecessary space is inserted.

[dpvc]

MathJax's TeX to MathML conversion tries to treat numbers as a single unit, so that x + 123 becomes

<mi>x</mi>
<mo>+</mo>
<mn>123</mn>

rather than something like

<mi>x</mi>
<mo>+</mo>
<mn>1</mn>
<mn>2</mn>
<mn>3</mn>

which is how TeX really thinks of it. This works fine except when the number follows a ^ or _, where this would mean x^123 would be the same as x^{123}, but in true TeX should work like x^{1}23. So MathJax prefilters the math to add a space after ^ or _ when they are followed by a digit. That has had the undesired consequence of adding a space in the middle of your URL.

I have changed this in v2.0, but that doesn't help you until that is released. A solution for now would be to include

<script type="text/x-mathjax-config">
MathJax.Hub.Config({
  TeX: { Augument: {
    prefilterMath: function (math,displaystyle,script) {
      if (HUB.Browser.isKonqueror)
        {math = math.replace(/&lt;/g,"<").replace(/&gt;/g,">").replace(/&amp;/g,"&")}
      return math;
    }
  }}
});
</script>

in your pages before the script that loads MathJax.js. That will remove the code that adds the space, but then you will need to be sure to use braces for your superscripts and subscripts if you want the effect of x^{1}23.

Davide

[fred-wang]

Thanks for the test case. I added it to our test suite.

LaTeXToMathML/non-standard/href-2.html

==> In testsuite

[ghost]

Thank you very much, the update solved the problem.

[dpvc]

OK, thanks for the confirmation.