On 07/09/2017 10:11 AM, Thierry Onkelinx wrote:
Dear Duncan,

Thanks for chiming in. Could you explain how you set debug() on post_processor()? I've tried adding debug(post_processor) to rsos_article() or adding debug(post_processor) when after post_processor was defined in the debugger. Neither work for me.

Not working for me either right now for some reason or other. What I was doing was manually running debug(post_processor) in the debugger after single stepping past its definition.

What does show it is running is that at that same point I can execute

post_processor <- function() stop()

and it stops.

The end of the console log looks like this:


/Applications/RStudio.app/Contents/MacOS/pandoc/pandoc +RTS -K512m -RTS skeleton.utf8.md --to latex --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash --output skeleton.tex --template /Library/Frameworks/R.framework/Versions/3.3/Resources/library/INBOmd/rmarkdown/templates/rsos_article/resources/template.tex --natbib --bibliography sample.bib
Latexmk: This is Latexmk, John Collins, 19 Jan. 2017, version: 4.52c.
Error in output_format$post_processor(yaml_front_matter, utf8_input, output_file, : unused arguments (yaml_front_matter, utf8_input, output_file, clean, !quiet) Called from: output_format$post_processor(yaml_front_matter, utf8_input, output_file,
    clean, !quiet)

so we see pandoc being run, then Latexmk, then the post_processor call. It seems a little odd that Latexmk is being run. Is that something you are doing, or is it pandoc asking for that? If the latter, can you tell pandoc not to do so?




All supporting files are available within the package. The code below should be reproducible on your machine.

remove.packages("INBOmd")
devtools::install_github("inbo/INBOmd@post_processor")
setwd(system.file("rmarkdown/templates/rsos_article/skeleton", package = "INBOmd"))
debug(INBOmd::rsos_article)
rmarkdown::render("skeleton.Rmd")

I'm not sure you would normally have write access in that directory, so it may not be typical of what you'd see in a user directory. I certainly see something different when I copy the skeleton.Rmd file (and nothing else) to my own temp directory.



The sign that post_processor() fails when the tex file still contains \EndFirstPage resulting in the compilation error "Undefined control sequence. l.128 \EndFirstPage"

That certainly indicates it isn't doing what you want, but it might be running and doing something else.

Duncan Murdoch


I still get the error with the current version of the code. Running the post_processor manually works.

eval(parse(
   text = readLines(
"https://raw.githubusercontent.com/inbo/INBOmd/post_processor/R/rsos_article.R";
   )[72:92]
))
post_processor(output_file = "skeleton.tex")
system("pdflatex skeleton.tex")

Best regards,


ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium

To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher
The plural of anecdote is not data. ~ Roger Brinner
The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey

2017-09-07 12:14 GMT+02:00 Duncan Murdoch <murdoch.dun...@gmail.com <mailto:murdoch.dun...@gmail.com>>:

    On 06/09/2017 5:41 AM, Thierry Onkelinx wrote:

        Dear all,

        I'm trying to write a post_processor() for a custom rmarkdown
        format. The
        goal of the post_processor() is to modify the latex file before
        it is
        compiled. For some reason the post_processor() is not run. The
        post_processor() does work when I run it manually on the tex file.

        Any suggestions on what I'm doing wrong? Below is the relevant
        snippet of
        the code. The full code is available at
        https://github.com/inbo/INBOmd/blob/post_processor/R/rsos_article.R
        <https://github.com/inbo/INBOmd/blob/post_processor/R/rsos_article.R>
        
https://github.com/inbo/INBOmd/blob/post_processor/inst/rmarkdown/templates/rsos_article/skeleton/skeleton.Rmd
        
<https://github.com/inbo/INBOmd/blob/post_processor/inst/rmarkdown/templates/rsos_article/skeleton/skeleton.Rmd>
        is an Rmd is a MWE that fails compile because the
        post_processor() is not
        run.


    I installed it and tried running it using

    debug(INBOmd::rsos_article)
    rmarkdown::render("skeleton.Rmd")

    then after post_processor was defined, I set it to debug as well,
    and could see that the post_processor was being run.

    I didn't get useful output, because the LaTeXing failed (I don't
    have the rsos.cls), but perhaps you've already fixed this problem,
    or perhaps it is intermittent?

    Duncan Murdoch

        Best regards,

        Thierry

            post_processor <- function(
              metadata, input_file, output_file, clean, verbose
            ) {
              text <- readLines(output_file, warn = FALSE)

              # set correct text in fmtext environment
              end_first_page <- grep("\\\\EndFirstPage", text) #nolint
              if (length(end_first_page) == 1) {
                maketitle <- grep("\\\\maketitle", text) #nolint
                text <- c(
                  text[1:(maketitle - 1)],
                  "\\begin{fmtext}",
                  text[(maketitle + 1):(end_first_page - 1)],
                  "\\end{fmtext}",
                  "\\maketitle",
                  text[(end_first_page + 1):length(text)]
                )
                writeLines(enc2utf8(text), output_file, useBytes = TRUE)
              }
              output_file
            }

            output_format(
              knitr = knitr_options(
                opts_knit = list(
                  width = 60,
                  concordance = TRUE
                ),
                opts_chunk = opts_chunk,
                knit_hooks = knit_hooks
              ),
              pandoc = pandoc_options(
                to = "latex",
                latex_engine = "xelatex",
                args = args,
                keep_tex = keep_tex
              ),
              post_processor = post_processor,
              clean_supporting = !keep_tex
            )



        ir. Thierry Onkelinx
        Instituut voor natuur- en bosonderzoek / Research Institute for
        Nature and
        Forest
        team Biometrie & Kwaliteitszorg / team Biometrics & Quality
        Assurance
        Kliniekstraat 25
        1070 Anderlecht
        Belgium

        To call in the statistician after the experiment is done may be
        no more
        than asking him to perform a post-mortem examination: he may be
        able to say
        what the experiment died of. ~ Sir Ronald Aylmer Fisher
        The plural of anecdote is not data. ~ Roger Brinner
        The combination of some data and an aching desire for an answer
        does not
        ensure that a reasonable answer can be extracted from a given
        body of data.
        ~ John Tukey

                 [[alternative HTML version deleted]]

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