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TrueLatex-Talk

Comments and Discussions

2010-01-29 - Trevor - Hey, I'm a really big fan of this recipe, and am using it extensively for my class notes. I just wanted to make note of an issue I had today. Basically, I was writing a big long eqnarray and while there were no LaTeX parse errors, the output still was not being produced. This turned out to be because the resulting PDF was long enough to take up two pages, so convert was failing. The simple workaround was to split the eqnarray into two separate eqnarrays, and it worked just fine. Just a note in case someone runs into the same error.

2010-02-11 - Matt - Hi, I'm also a fan of this recipe. I just switched my server to Fedora Core 12 with TeXLive 2009 today, and I'm having trouble rendering LaTeX. No matter what I try, I always get "ERROR in parsing LaTeX". I made a .tex file with the default template and used pdflatex on it, and it generated a pdf. Do you think this is an issue with FC12, or TeXLive, or something else? By the way, I switched from gentoo linux, so I don't know much about fedora.

2010-03-09 - Matt - I modified your script to turn on Verbose when it encounters an error. When editing pages, this makes noticing/fixing syntax errors easier and faster. On the other hand, I doubt you would want it to go verbose when someone is trying to read a page that has some issues. It's nice for editing though. Thanks again for your work on this!

2010-04-29 - Matt - I think it would be helpful to define a shorthand markup for TrueLatex. I don't know how most people are using this, but I usually have lots of small LaTeX snippets all over my documents. So typing the full syntax out every time is a little tiring. On my machine, I added the markup ~text~ as a shorthand for truelatex with no options, since with verbose enabling upon an error I very rarely need to specify options. I don't know anything about pmwiki or its conventions, so ~ might be a bad choice, it was just the first thing I found that worked. Anyway, thanks again, I use your work here all the time. How easy/hard would it be to modify TrueLatex to work with XeLaTeX as well as LaTeX? I use XeLaTeX to typeset Japanese, and as far as I know it's not something I can do (easily) in LaTeX, but I might be wrong about that.

2010-05-06 - Martijn - Hi, just wanted to throw in my 2c about making this recipe work on Windows. Although I doubt many would run a wiki under windows, my home dev machine is (for now) and only a few changes were necessary to make it run well. By default MiKTeX operates in errorstopmode, which causes execution to hang and stall PHP. Similarly, if it encounters an unfamiliar package, by default it opens a GUI and stalls, which is also undesirable. I therefore use pdflatex --interaction=nonstopmode --disable-installer to get the desired behaviour. Secondly, under Windows the command separator within the shell_exec statements needs to be changed from ; to &&, which is also valid in (most?) Linux shells and prevents execution of following commands if the earlier one fails; which would fail anyway in this case. There were some other minor adjustments I made for personal preference, so perhaps config variables for latex/convert arguments might be useful? Great code by the way, and I hope my suggestions are helpful.

2019-01-06 - TDS - I finally migrated my pmwiki to a 7.1 php server but had some hiccups (mainly because I lost a common stylesheet in the migration). I had to tweak the truelatex.php file to provide clearer errors (page rendering would hang if there was a latex error) and then converting the pdf to png would fail if the rendered latex pdf was multi-page. This patch fixed both those issues for me:

  -322,7 +326,7  function TrueLatex_parseTeX($dirname, $filename)
         case "pdflatex":
             $TrueLatex->OutMsg = array_merge($TrueLatex->OutMsg, explode("\n", shell_exec(
                     "cd ".$dirname ." 2>&1 ; ".
  -                    "pdflatex ".$filename." 2>&1"
  +                    "pdflatex -interaction nonstopmode -halt-on-error -file-line-error ".$filename." 2>&1"
                     )));
             return $filename.'.pdf';
  -363,8 +377,10  function TrueLatex_extractPNG($dirname, $name_in, $name_out)
             // trim
             $TrueLatex->OutMsg = array_merge($TrueLatex->OutMsg, explode("\n", shell_exec(
                     "cd ".$dirname ." 2>&1; ".
  -                    "convert ".$name_in." -trim ".$name_out." 2>&1"
  +                    "convert ".$name_in." -append -trim ".$name_out." 2>&1"
                     )));
            if ($TrueLatex->UsePDFColors)
                break;
             // make transparent background

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