module(...,package.seeall) local make4ht = require("make4ht-lib") local mkparams = require("mkparams") --template engine function interp(s, tab) local tab = tab or {} return (s:gsub('($%b{})', function(w) return tab[w:sub(3, -2)] or w end)) end --print( interp("${name} is ${value}", {name = "foo", value = "bar"}) ) function addProperty(s,prop) if prop ~=nil then return s .." "..prop else return s end end getmetatable("").__mod = interp getmetatable("").__add = addProperty --print( "${name} is ${value}" % {name = "foo", value = "bar"} ) -- Outputs "foo is bar" -- merge two tables recursively function merge(t1, t2) for k, v in pairs(t2) do if (type(v) == "table") and (type(t1[k] or false) == "table") then merge(t1[k], t2[k]) else t1[k] = v end end return t1 end function string:split(sep) local sep, fields = sep or ":", {} local pattern = string.format("([^%s]+)", sep) self:gsub(pattern, function(c) fields[#fields+1] = c end) return fields end function remove_extension(path) local found, len, remainder = string.find(path, "^(.*)%.[^%.]*$") if found then return remainder else return path end end -- function file_exists(file) local f = io.open(file, "rb") if f then f:close() end return f ~= nil end -- searching for converted images function parse_lg(filename) print("Parse LG") local outputimages,outputfiles,status={},{},nil local fonts, used_fonts = {},{} if not file_exists(filename) then print("Cannot read log file: "..filename) else local usedfiles={} for line in io.lines(filename) do --- needs --- pokus.idv[1] ==> pokus0x.png --- -- line:gsub("needs --- (.+?)[([0-9]+) ==> ([%a%d%p%.%-%_]*)",function(name,page,k) table.insert(outputimages,k)end) line:gsub("needs %-%-%- (.+)%[([0-9]+)%] ==> ([%a%d%p%.%-%_]*)", function(file,page,output) local rec = { source = file, page=page, output = output } table.insert(outputimages,rec) end ) line:gsub("File: (.*)", function(k) if not usedfiles[k] then table.insert(outputfiles,k) usedfiles[k] = true end end) line:gsub("htfcss: ([^%s]+)(.*)",function(k,r) local fields = {} r:gsub("[%s]*([^%:]+):[%s]*([^;]+);",function(c,v) fields[c] = v end) fonts[k] = fields end) line:gsub('Font("([^"]+)","([%d]+)","([%d]+)","([%d]+)"',function(n,s1,s2,s3) table.insert(used_fonts,{n,s1,s2,s3}) end) end status=true end return {files = outputfiles, images = outputimages},status end -- local cp_func = os.type == "unix" and "cp" or "copy" -- maybe it would be better to actually move the files -- in reality it isn't. -- local cp_func = os.type == "unix" and "mv" or "move" function cp(src,dest) local command = string.format('%s "%s" "%s"', cp_func, src, dest) if cp_func == "copy" then command = command:gsub("/",'\\') end print("Copy: "..command) os.execute(command) end function mv(src, dest) local mv_func = os.type == "unix" and "mv " or "move " local command = string.format('%s "%s" "%s"', mv_func, src, dest) -- fix windows paths if mv_func == "move" then command = command:gsub("/",'\\') end print("Move: ".. command) os.execute(command) end function delete_dir(path) local cmd = os.type == "unix" and "rm -rd " or "rd /s/q " os.execute(cmd .. path) end local used_dir = {} function prepare_path(path) --local dirs = path:split("/") local dirs = {} if path:match("^/") then dirs = {""} elseif path:match("^~") then local home = os.getenv "HOME" dirs = home:split "/" path = path:gsub("^~/","") table.insert(dirs,1,"") end if path:match("/$")then path = path .. " " end for _,d in pairs(path:split "/") do table.insert(dirs,d) end table.remove(dirs,#dirs) return dirs,table.concat(dirs,"/") end -- Find which part of path already exists -- and which directories have to be created function find_directories(dirs, pos) local pos = pos or #dirs -- we tried whole path and no dir exist if pos < 1 then return dirs end local path = "" -- in the case of unix absolute path, empty string is inserted in dirs if pos == 1 and dirs[pos] == "" then path = "/" else path = table.concat(dirs,"/", 1,pos) .. "/" end if not lfs.chdir(path) then -- recursion until we succesfully changed dir -- or there are no elements in the dir table return find_directories(dirs,pos - 1) elseif pos ~= #dirs then -- if we succesfully changed dir -- and we have dirs to create local p = {} for i = pos+1, #dirs do table.insert(p, dirs[i]) end return p else -- whole path exists return {} end end function mkdirectories(dirs) if type(dirs) ~="table" then return false, "mkdirectories: dirs is not table" end for _,d in ipairs(dirs) do local stat,msg = lfs.mkdir(d) if not stat then return false, "makedirectories error: "..msg end lfs.chdir(d) end return true end function copy_filter(src,dest, filter) local src_f=io.open(src,"rb") local dst_f=io.open(dest,"w") local contents = src_f:read("*all") local filter = filter or function(s) return s end src_f:close() dst_f:write(filter(contents)) dst_f:close() end function copy(filename,outfilename) local currdir = lfs.currentdir() if filename == outfilename then return true end local parts, path = prepare_path(outfilename) if not used_dir[path] then local to_create, msg = find_directories(parts) if not to_create then print(msg) return false end used_dir[path] = true local stat, msg = mkdirectories(to_create) if not stat then print(msg) end end lfs.chdir(currdir) cp(filename, path) return true end -- find the zip command function find_zip() if io.popen("zip -v","r"):close() then return "zip" elseif io.popen("miktex-zip -v","r"):close() then return "miktex-zip" end -- we cannot find the zip command return "zip" end -- Config loading local function run(untrusted_code, env) if untrusted_code:byte(1) == 27 then return nil, "binary bytecode prohibited" end local untrusted_function = nil untrusted_function, message = load(untrusted_code, nil, "t",env) if not untrusted_function then return nil, message end if not setfenv then setfenv = function(a,b) return true end end setfenv(untrusted_function, env) return pcall(untrusted_function) end local main_settings = {} main_settings.fonts = {} local env = {} -- We make sandbox for make script, all functions must be explicitely declared -- Function declarations: env.pairs = pairs env.ipairs = ipairs env.print = print env.split = split env.string = string env.table = table env.copy = copy env.tonumber = tonumber env.tostring = tostring env.mkdirectories = mkdirectories env.require = require env.texio = texio env.type = type env.lfs = lfs env.os = os env.io = io env.math = math env.unicode = unicode -- it is necessary to use the settings table -- set in the Make environment by mkutils function env.set_settings(par) local settings = env.settings for k,v in pairs(par) do settings[k] = v end end -- Add a value to the current settings function env.settings_add(par) local settings = env.settings for k,v in pairs(par) do local oldval = settings[k] or "" settings[k] = oldval .. v end end function env.get_filter_settings(name) local settings = env.settings -- local settings = self.params local filters = settings.filter or {} local filter_options = filters[name] or {} return filter_options end function env.filter_settings(name) -- local settings = Make.params local settings = env.settings local filters = settings.filter or {} local filter_options = filters[name] or {} return function(par) filters[name] = merge(filter_options, par) settings.filter = filters end end env.Font = function(s) local font_name = s["name"] if not font_name then return nil, "Cannot find font name" end env.settings.fonts[font_name] = s end env.Make = make4ht.Make env.Make.params = env.settings env.Make:add("test","test the variables: ${tex4ht_sty_par} ${htlatex} ${input} ${config}") -- this function reads the LaTeX log file and tries to detect fatal errors in the compilation local function testlogfile(par) local logfile = par.input .. ".log" local f = io.open(logfile,"r") if not f then print("Make4ht: cannot open log file "..logfile) return 1 end local len = f:seek("end") -- test only the end of the log file, no need to run search functions on everything local newlen = len - 1256 -- but the value to seek must be greater than 0 newlen = (newlen > 0) and newlen or 0 f:seek("set", newlen) local text = f:read("*a") f:close() if text:match("No pages of output") or text:match("TeX capacity exceeded, sorry") then return 1 end return 0 end -- Make this function available in the build files Make.testlogfile = testlogfile --env.Make:add("htlatex", "${htlatex} ${latex_par} '\\\makeatletter\\def\\HCode{\\futurelet\\HCode\\HChar}\\def\\HChar{\\ifx\"\\HCode\\def\\HCode\"##1\"{\\Link##1}\\expandafter\\HCode\\else\\expandafter\\Link\\fi}\\def\\Link#1.a.b.c.{\\g@addto@macro\\@documentclasshook{\\RequirePackage[#1,html]{tex4ht}\\let\\HCode\\documentstyle\\def\\documentstyle{\\let\\documentstyle\\HCode\\expandafter\\def\\csname tex4ht\\endcsname{#1,html}\\def\\HCode####1{\\documentstyle[tex4ht,}\\@ifnextchar[{\\HCode}{\\documentstyle[tex4ht]}}}\\makeatother\\HCode '${config}${tex4ht_sty_par}'.a.b.c.\\input ' ${input}") -- template for calling LaTeX with tex4ht loaded Make.latex_command = "${htlatex} ${latex_par} '\\makeatletter".. "\\def\\HCode{\\futurelet\\HCode\\HChar}\\def\\HChar{\\ifx\"\\HCode".. "\\def\\HCode\"##1\"{\\Link##1}\\expandafter\\HCode\\else".. "\\expandafter\\Link\\fi}\\def\\Link#1.a.b.c.{\\g@addto@macro".. "\\@documentclasshook{\\RequirePackage[#1,html]{tex4ht}${packages}}".. "\\let\\HCode\\documentstyle\\def\\documentstyle{\\let\\documentstyle".. "\\HCode\\expandafter\\def\\csname tex4ht\\endcsname{#1,html}\\def".. "\\HCode####1{\\documentstyle[tex4ht,}\\@ifnextchar[{\\HCode}{".. "\\documentstyle[tex4ht]}}}\\makeatother\\HCode ${tex4ht_sty_par}.a.b.c.".. "\\input \"\\detokenize{${tex_file}}\"'" env.Make:add("htlatex",function(par) local command = Make.latex_command if os.type == "windows" then command = command:gsub("'",'') end command = command % par print("LaTeX call: "..command) os.execute(command) return testlogfile(par) end ,{correct_exit=0}) env.Make:add("latexmk", function(par) local command = Make.latex_command par.expanded = command % par -- quotes in latex_command must be escaped, they cause Latexmk error par.expanded = par.expanded:gsub('"', '\\"') local newcommand = 'latexmk -latex="${expanded}" -dvi ${tex_file}' % par os.execute(newcommand) return Make.testlogfile(par) end, {correct_exit= 0}) env.Make:add("tex4ht","tex4ht ${tex4ht_par} \"${input}.${dvi}\"", nil, 1) env.Make:add("t4ht","t4ht ${t4ht_par} \"${input}.${ext}\"",{ext="dvi"},1) -- enable extension in the config file -- the following two functions must be here and not in make4ht-lib.lua -- because of the access to env.settings env.Make.enable_extension = function(self,name) table.insert(env.settings.extensions, {type="+", name=name}) end -- disable extension in the config file env.Make.disable_extension = function(self,name) table.insert(env.settings.extensions, {type="-", name=name}) end function load_config(settings, config_name) local settings = settings or main_settings -- the extensions requested from the command line should take precedence over -- extensions enabled in the config file local saved_extensions = settings.extensions settings.extensions = {} env.settings = settings env.mode = settings.mode if config_name and not file_exists(config_name) then config_name = kpse.find_file(config_name, 'texmfscripts') or config_name end local f = io.open(config_name,"r") if not f then print("Cannot open config file", config_name) return env end print("Using build file", config_name) local code = f:read("*all") local fn, msg = run(code,env) if not fn then print(msg) end assert(fn) -- reload extensions from command line arguments for the "format" parameter for _,v in ipairs(saved_extensions) do table.insert(settings.extensions, v) end return env end env.Make:add("xindy", function(par) -- par.encoding = par.encoding or "utf8" -- par.language = par.language or "english" par.idxfile = par.idxfile or par.input .. ".idx" local modules = par.modules or {par.input} local t = {} for k,v in ipairs(modules) do t[#t+1] = "-M ".. v end par.moduleopt = table.concat(t, " ") local xindy_call = "xindy -L ${language} -C ${encoding} ${moduleopt} ${idxfile}" % par print(xindy_call) return os.execute(xindy_call) end, { language = "english", encoding = "utf8"}) local function find_lua_file(name) local extension_path = name:gsub("%.", "/") .. ".lua" return kpse.find_file(extension_path, "lua") end --- load the output format plugins function load_output_format(format_name) local format_library = "make4ht.formats."..format_name local is_format_file = find_lua_file(format_library) if is_format_file then local format = assert(require(format_library)) if format then format.prepare_extensions = format.prepare_extensions or function(extensions) return extensions end format.modify_build = format.modify_build or function(make) return make end end return format end end --- Execute the prepare_parameters function in list of extensions function extensions_prepare_parameters(extensions, parameters) for _, ext in ipairs(extensions) do -- execute the extension only if it contains prepare_parameters function local fn = ext.prepare_parameters if fn then parameters = fn(parameters) end end return parameters end --- Modify the build sequence using extensions -- @param extensions list of extensions -- @make Make object function extensions_modify_build(extensions, make) for _, ext in ipairs(extensions) do local fn = ext.modify_build if fn then make = fn(make) end end return make end --- load one extension -- @param name extension name -- @param format current output format function load_extension(name,format) -- first test if the extension exists local extension_library = "make4ht.extensions." .. name local is_extension_file = find_lua_file(extension_library) -- don't try to load the extension if it doesn't exist if not is_extension_file then return nil end local extension = require("make4ht.extensions.".. name) -- extensions can test if the current output format is supported local test = extension.test if test then if test(format) then return extension end -- if the test fail return nil return nil end -- if the extension doesn't provide the test function, we will assume that -- it supports every output format return extension end --- load extensions -- @param extensions table created by mkparams.get_format_extensions function -- @param format output type format. extensions may support only certain file -- formats function load_extensions(extensions, format) local module_names = {} local extension_table = {} local extension_sequence = {} -- process the extension table. it contains type field, which can enable or -- diable the extension for _, v in ipairs(extensions) do local enable = v.type == "+" and true or nil -- load extenisons in a correct order -- don't load extensions multiple times if enable and not module_names[v.name] then table.insert(extension_sequence, v.name) end -- the last extension request can disable it module_names[v.name] = enable end for _, name in ipairs(extension_sequence) do -- the extension can be inserted into the extension_sequence, but disabled -- later. if module_names[name] == true then local extension = load_extension(name,format) if extension then print("Load extension", name) table.insert(extension_table, extension) else print("Cannot load extension: ".. name) end end end return extension_table end --- add new extensions to a list of loaded extensions -- @param added string with extensions to be added in the form +ext1+ext2 function add_extensions(added, extensions) local _, newextensions = mkparams.get_format_extensions("dummyfmt" .. added) -- insert new extension at the beginning, in order to support disabling using -- the -f option for _, x in ipairs(extensions or {}) do table.insert(newextensions, x) end return newextensions end -- I don't know if this is clean, but settings functions won't be available -- for filters and extensions otherwise for k,v in pairs(env) do _G[k] = v end