Unnecessary \left(\right.) and \left.\right) Pairs in Converted LaTeX from MathML

[ralinres]

Description:

When converting certain MathML equations to LaTeX using the mathml-to-latex library, the output LaTeX includes unnecessary \left(\right.) and \left.\right) delimiters even when there is no content inside the parentheses. Additionally, spaces between words in mtext elements are handled inconsistently, resulting in the inclusion of \textrm{ } for a simple space.

Example
Input MathML:

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <semantics>
    <mrow>
      <msub>
        <mtext>Required Value</mtext>
        <mtext>other</mtext>
      </msub>
      <mo>≥</mo>
      <mfrac>
        <mrow>
          <mn>21</mn>
          <mi>f</mi>
          <msup>
            <mi>t</mi>
            <mn>3</mn>
          </msup>
        </mrow>
        <mrow>
          <mi>A</mi>
          <mi>C</mi>
          <mi>H</mi>
        </mrow>
      </mfrac>
      <mo>⋅</mo>
      <mo fence="true">(</mo>
      <mfrac>
        <msub>
          <mi>I</mi>
          <mi>o</mi>
        </msub>
        <mrow>
          <mn>1000</mn>
          <msub>
            <mi>B</mi>
            <mrow>
              <mtext>Btu</mtext>
              <mi mathvariant="normal">/</mi>
              <mtext>h</mtext>
            </mrow>
          </msub>
        </mrow>
      </mfrac>
      <mo fence="true">)</mo>
    </mrow>
  </semantics>
</math>

Output LaTeX:
\left(\text{Required}\textrm{ }\text{Value}\right)_{\text{other}} \geq \frac{21 f t^{3}}{A C H} \cdot \left(\right. \frac{I_{o}}{1000 B_{\text{Btu} / \text{h}}} \left.\right)
Expected LaTeX:
\text{Required Value}_{\text{other}} \geq \frac{21 f t^{3}}{\text{ACH}} \cdot \left( \frac{I_{o}}{1000 B_{\text{Btu}/\text{h}}} \right)