my Latex and Tex4ht cheat sheet

\documentclass[]{article}
\usepackage{luacode}
\begin{luacode*} -- CVS API: http://nocurve.com/simple-csv-read-and-write-using-lua/
local function split(str, sep)
fields={}
local matchfunc = string.gmatch(str, "([^"..sep.."]+)")
if not matchfunc then return {str} end
for str in matchfunc do
table.insert(fields, str)
end
return fields
end
function read(path, sep, tonum)
tonum = tonum or true
sep = sep or ','
local csvFile = {}
local file = assert(io.open(path, "r"))
for line in file:lines() do
fields = split(line, sep)
if tonum then -- convert numeric fields to numbers
for i=1,#fields do
fields[i] = tonumber(fields[i]) or fields[i]
end
end
table.insert(csvFile, fields)
end
file:close()
return csvFile
end
local m = read('./c.cvs') -- read file csv file to local matrix m
function getField(row,col) -- API to latex command below
tex.print(m[row][col])
end
\end{luacode*}
\newcommand\getField[2]{\directlua{getField(#1,#2) }}%
\begin{document}
\begin{table}[]
\centering
\caption{My example}
\begin{tabular}{|l|l|l|l|l|}\hline
1 & \getField{1}{2} & 3 & 4 & 5 \\\hline
6 & 7 & 8 & \getField{2}{5} & 9 \\\hline
10 & 11 & 12 & 13 & 14 \\\hline
\end{tabular}
\end{table}
\end{document}
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