-- File 'luaaddplot.lua', generated from luaaddplot.dtx'. --[[ %% %% luaaddplot.dtx %% Copyright 2022 Reinhard Kotucha %% %% This work may be distributed and/or modified under the %% conditions of the LaTeX Project Public License, either version 1.3 %% of this license or (at your option) any later version. %% The latest version of this license is in %% http://www.latex-project.org/lppl.txt %% and version 1.3 or later is part of all distributions of LaTeX %% version 2005/12/01 or later. %% %% This work has the LPPL maintenance status `maintained'. %% %% The Current Maintainer of this work is Reinhard Kotucha. %% %% This work consists of the files luaaddplot.dtx and luaaddplot.ins %% and the derived files luaaddplot.tex, luaaddplot.sty, and luaaddplot.lua. --]] module('luaaddplot', package.seeall) function readfile (file, lambda) if not lfs.isfile(file) then error('\nERROR: File "'..file..'" not found.') end local data = io.open(file) for line in data:lines() do line = line:gsub('^%s+', '') if line:match('^%-?%.?[0-9]') then line = line:gsub('[\t:;,]', ' ') local a, b local cols = line:explode (' +') for i, col in ipairs(cols) do cols[i] = tonumber(cols[i]) end if lambda then a, b = lambda(cols) if a and b then tex.print(string.format('%g %g', a, b)) end else tex.print(string.format('%g %g', cols[1], cols[2])) end end end tex.print('};') data:close() end function opts (s) tex.print('\\addplot'..s..' table {') end