Log Message:
Update to texmath-0.12.2

texmath (0.12.2)
  * MathML input: support mmultiscripts element (#158, #100).
  * Make MathML tag/attr recognition case-insensitive (#158).
  * Pandoc writer: better handling of styling such as `\mathrm` (#145).
    Previously identifiers were always italic, no matter what
    styling was applied.
  * Ignore `\tag` in TeX input (#162).
  * TeX writer: avoid unneeded `\left` and `\right` for delimited.
    We don't need `\left` and `\right` when the contents are
    "standard height."
  * TeX reader: parse implicit EDelimited sections (#172).
    We now parse `(x)` as EDelimited, even though `\right` and `\left`
    are not used.

texmath (0.12.1.1)
  * Fix compilation with GHC-9.0.1 (#169, Simon Jakobi).
    Background:
    https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.0#simplified-subsumption
  * Add eqn to online demo.
  * Improve error messages for unknown control sequences, and restructure
    tex parser to be more efficient (#167).

texmath (0.12.1)
  * OMML writer: explicitly mark symbols as non-italic (#109).
    Otherwise, for some reason, they appear as italic by default.
  * Improve error messages in reading tex arrays.
  * Improve support for `\bmod`, `\mod`, etc. (#165).
    Allow them to take complex arguments like `\left( 1 \right)`.
  * Improve support for `\genfrac` (#164).
  * Ignore `\textstyle`, `\scriptstyle`, `\scriptscriptstyle`,
    as we currently ignore `\displaystyle`.
  * Parse siunitx commands in reading tex (#157).
  * Improve handling of `\not` in reading tex (#161).
    Previously we only handled `\not` in front of certain symbols.
  * Support `\pod` and `\pmod` and clean up spacing and font for
    `\mod` and `\bmod` (#160).

texmath (0.12.0.3)
  * Allow pandoc-types 1.22.

texmath (0.12.0.2)
  * Allow pandoc-types 1.21.
  * Pandoc output: omit empty Emph for sub/superscript without base (#155).
  * tex writer: Use `\overline{\overline{B}}` instead of unicode
    double line accent (#153).

texmath (0.12.0.1)
  * OMML writer: Fix overline and accent rendering (#152).
  * OMML reader: Fix dropped arrows (#153). Add tests.