Follow-up Comment #2, bug #625 (project tex4ht): Hi Nasser, this is not limited to TeX4ht but to l3regex, which is used to clean the MathJax code. See this question, where they found the same issue: https://tex.stackexchange.com/q/654633/2891
In theory, you could skip the regex cleaning using this configuration file: %%%%%%%%%%%%%%%% \Preamble{xhtml} \ExplSyntaxOn \cs_set_protected:Npn \alteqtoks #1 { \HCode{\detokenize{#1}} } \ExplSyntaxOff \begin{document} \EndPreamble %%%%%%%%%%%%%%%%%%%%% The downside is that you can end with incorrect characters in your HTML, in particular <, > and &. These can cause MathJax fail. Also, to break your long strings, you can use this prefilter: %%%%%%%%%%%%%%% local max_len = 255 for line in io.lines() do line = line:gsub("\r", "") local str_len = string.len(line) if str_len > max_len then -- if the line is longer than maxlen, we will break it to a shorter segments local curr_pos = max_len local prev_pos = 1 while curr_pos < str_len do -- find next command preceded by spaces starting at the current position curr_pos, len = string.find(line, "%s+\\", curr_pos) print(curr_pos, str_len,string.sub(line, prev_pos, curr_pos)) prev_pos = curr_pos -- we must move the current position curr_pos = curr_pos + max_len end -- print rest of the line print(string.sub(line, prev_pos, str_len)) else print(line) end end %%%%%%%%%%%% Use it as: $ texlua format.lua < original.tex > formated.tex It will format your long lines into much shorter chunks, preventing the "! Unable to read an entire line---bufsize=200000" error I encountered. I suppose that you set the limit higher, but I didn't and couldn't compile your file originally. _______________________________________________________ Reply to this item at: <http://puszcza.gnu.org.ua/bugs/?625> _______________________________________________ Message sent via/by Puszcza http://puszcza.gnu.org.ua/