diff options
Diffstat (limited to 'Master/texmf-dist/scripts/cachepic/cachepic.tlu')
| -rwxr-xr-x | Master/texmf-dist/scripts/cachepic/cachepic.tlu | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/Master/texmf-dist/scripts/cachepic/cachepic.tlu b/Master/texmf-dist/scripts/cachepic/cachepic.tlu new file mode 100755 index 00000000000..363d6bb6320 --- /dev/null +++ b/Master/texmf-dist/scripts/cachepic/cachepic.tlu @@ -0,0 +1,231 @@ +#!/usr/bin/env texlua + +local options = { + pdfoutput=true, + redoall=false, + multipicfile=false, + noborder=false, + dotypesetting=true, + nopostprocess=false, +} + +local usagetext = 'Usage: cachepic [options] latexfile' +local tryhelp = "Try `cachepic --help' for more information" +local helptext = [[ +Options start with '-' or '--' and can be any of: + -pdf output in (e)pdf format (default) + -eps output in eps format + -all regenerate all graphics + -multi all graphics in one file (implies -pdf) + -tight no 0.5bp margin around the graphic + -notex no typesetting, only graphic postprocessing + -nopic generate no graphics, only .cachepic file + -usage display usage message + -help,-h,-? display help message]] + +local msg = { + MultipleInputFiles = "cannot process multiple files:\t%s\t%s", + NoInputFile = "no input file given\n" .. tryhelp, + UnknownOption = "unknown option: %s\n" .. tryhelp, + FileOpenFailed = "could not open file: %s", + NoGhostScript = "could not locate ghostscript interpreter", + WrongOutputMode = "expected %s output but got %s", + NoPreviews = "no cachepic previews found", + MultiPicOnlyInPDF = "option '-multi' for all graphics in one file supported only in pdf mode" +} + +function die(msgfmt, ...) + error(string.format(msgfmt, ...)) +end + +function warn(msgfmt, ...) + print('warning: ' .. string.format(msgfmt, ...)) +end + +local function qfile(filename) + filename = string.gsub(filename, '"', '') + if string.find(filename, "[%s%&%(%)%[%]%{%}%^%=%;%!%'%+%,%`%~]") then + filename = '"' .. filename .. '"' + end + return filename +end + +local function syscall(command) + print('system: ' .. command) + local ret = os.execute(command) + if ret > 0 then os.exit(ret) + else return ret end +end + +local function copyfile(src, dst) + print('copy ' .. qfile(src) .. ' ' .. qfile(dst)) + local buffer, bufsize = '', 1024 + local fin = io.open(src, 'rb') + if not fin then die(msg.FileOpenFailed, src) end + local fout = io.open(dst, 'wb') + if not fout then die(msg.FileOpenFailed, dst) end + while buffer do + fout:write(buffer) + buffer = fin:read(bufsize) + end + fin:close() + fout:close() +end + +local isfile = lfs and lfs.isfile or function (fname) + -- if we are not running under texlua, then do it the hard way + local fh = io.open(fname) + return (fh and (fh:close() or true) or false) +end + +local function whichfile(fname, path) + if isfile(fname) then return fname end + -- make the best guess if it is Windows or Unix + local dirsep, pathsep = '/', ':' + if (os.type == 'windows') or string.find(path, '\\') or string.find(path, ';') then + dirsep, pathsep = '\\', ';' -- Windows + end + -- iterate path + for dir in string.gmatch(path, '[^' .. pathsep .. ']+') do + local f = dir .. dirsep .. fname + -- print(f) + if isfile(f) then return f end + end + return nil +end + +local function findgs() + local path = os.getenv('PATH') + for _, fname in ipairs{'gs', 'gswin32c.exe', 'mgs.exe'} do + if whichfile(fname, path) then return fname end + end + die(msg.NoGhostScript) +end + +-- Process options -- +if #arg == 0 then + print(usagetext) + print(tryhelp) + os.exit(0) +end +local filename = nil +for _, argn in ipairs(arg) do + local opt, num = string.gsub(argn, '^%-%-?', '') + if num == 0 then -- not an option + if filename then die(msg.MultipleInputFiles, filename, opt) + else filename = opt end + elseif opt == 'eps' then options.pdfoutput = false + elseif opt == 'pdf' then options.pdfoutput = true + elseif opt == 'all' then options.redoall = true + elseif opt == 'multi' then options.multipicfile = true + elseif opt == 'tight' then options.noborder = true + elseif opt == 'notex' then options.dotypesetting = false + elseif opt == 'nopic' then options.nopostprocess = true + elseif (opt == 'usage') or (opt == 'help') or (opt == 'h') or (opt == '?') then + print(usagetext) + if opt == 'usage' then os.exit(0) end + print(helptext) + os.exit(0) + else die(msg.UnknownOption, argn) end +end +if not filename then + die(msg.NoInputFile) +end +if options.multipicfile and not options.pdfoutput then + warn(msg.MultiPicOnlyInPDF) + options.multipicfile = false +end +filename = string.gsub(filename, '\\', '/') +local noextname = string.gsub(filename, '%.[^./]*$', '') +local jobname = string.match(noextname, '[^/]+$') +local jobsuffix = (options.dotypesetting and '_cptmp' or '') +local multipicfilename = noextname .. '-cachepic.pdf' + +-- Typeset document -- +if options.dotypesetting then + local engine = (options.pdfoutput and 'pdflatex' or 'latex') + local psfixbb = (options.pdfoutput and '' or ',psfixbb') + local noborder = (options.noborder and ' \\PreviewBorder=0pt' or '') + local redoall = (options.redoall and ' \\makeatletter\\def\\cachepic@tryincludepic#1#2{\\xdef\\cachepic@name{#1}#2}\\makeatother' or '') + local command = engine .. ' -interaction=nonstopmode -jobname=' .. jobname .. jobsuffix .. + ' \\def\\jobname{' .. jobname .. '}' .. + ' \\RequirePackage[active,tightpage,delayed,cachepic' .. psfixbb .. ']{preview}' .. + noborder .. redoall .. ' \\input{' .. qfile(filename) .. '}' + syscall(command) +end + +-- Process log file -- +local iLines = io.lines(noextname .. jobsuffix .. '.log') +local pics = {} +local pdfmode = options.pdfoutput +local trim = '0 0 0 0' +for line in iLines do + local head, c1, c2, c3, c4, c5 = string.match(line, + '^Preview:%s*([A-Za-z]+)%s*(%-?%d*)%s*(%-?%d*)%s*(%-?%d*)%s*(%-?%d*)%s*(.*)') + if head == 'PDFoutput' then + pdfmode = (tonumber(c1) ~= 0) + elseif (head == 'Tightpage') and c1 and c2 and c3 and c4 then + trim = string.format('%dsp %dsp %dsp %dsp', + -tonumber(c1), -tonumber(c2), tonumber(c3), tonumber(c4)) + elseif (head == 'CachePic') and c1 and c2 and c3 and c4 and c5 then + local picname = c5 + local picpage = tonumber(c1) + local baseline = tonumber(c4) or 0 + local texmacro = string.format('\\CachePicDefMacro{%s}{%d}{trim=%s}{%dsp}', + picname, picpage, trim, -baseline) + pics[#pics+1] = {name=picname, page=picpage, macro=texmacro} + end +end +if #pics == 0 then + warn(msg.NoPreviews) + return +end +if pdfmode ~= options.pdfoutput then + local expectedmode = options.pdfoutput and 'pdf' or 'dvi' + local actualmode = pdfmode and 'pdf' or 'dvi' + die(msg.WrongOutputMode, expectedmode, actualmode) +end + +-- Write out cachepic macros -- +io.output(noextname .. '.cachepic') +for i = 1, #pics do + io.write(pics[i].macro, '\n') +end +io.close() +if options.nopostprocess then return end + +-- Postprocess pics -- +if options.multipicfile then + if options.pdfoutput then + -- without option -all the file size will slowly grow + -- extra run through GhostScript seems to prevent that + -- but it degrades raster graphics or makes them much larger + -- no perfect solution it seems + copyfile(noextname .. jobsuffix .. '.pdf', multipicfilename) + else die(msg.MultiPicOnlyInPDF) end -- this should never happen +else + local ext, cmdtmpl + if options.pdfoutput then + ext = '.pdf' + filename = qfile(noextname .. jobsuffix .. '.pdf') + cmdtmpl = findgs() .. + ' -sDEVICE=pdfwrite -dQUIET -dBATCH -dNOPAUSE -dCompatibilityLevel=1.4' .. + ' -dFirstPage=%s -dLastPage=%s -sOutputFile=%s %s' + else + ext = '.eps' + filename = qfile(noextname .. jobsuffix .. '.dvi') + cmdtmpl = 'dvips -E -p %s -l %s -o %s %s' + end + for i = 1, #pics do + local outfile = string.gsub(pics[i].name, '"', '') .. ext + if not isfile(outfile) or options.redoall then + outfile = qfile(outfile) + syscall(string.format(cmdtmpl, pics[i].page, pics[i].page, outfile, filename)) + end + end +end +--[[-- GS options preventing lossy image recompression + ' -dMonoImageFilter=/CCITTFaxEncode' .. + ' -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode' .. + ' -dAutoFilterGrayImages=false -dGrayImageFilter=/FlateEncode' .. +]]
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