cannot properly export function name with underline to HTML

[roc lee <roc.lee.80@gmail.com>]

I have function names in both a text block and a table cell, for example:
function_name_with_underline()

When I publish it in HTML format, the underline was interpreted incorrectly:

function<sub>name</sub><sub>with</sub><sub>underline</sub>


"=function_name_with_underline()=" works, but to warp all function
names is boring.

Is there any solution to solve it?


Many thanks.