Thomas S. Dye <t...@tsdye.com> wrote: > >> Greetings. I was trying to set up a little demo in which I included a >> Makefile inside a "sh" source-code block in an Org-mode file, >> then tangled the file and ran "make" on the tangled file (either in the >> actual shell or in another sh block in Org). >> >> It appears that Org is removing tabs when it tangles the file, and the lack >> of tabs causes "make" to complain. >> >> I've appended a toy example which exhibits the problem. BTW, if I edit >> the source block via C-c ' I also lose the tabs, i.e., even before >> tangling. >> >> Any thoughts about this? >>
> I stumbled across this, too, in a somewhat different context. My > "solution" was to hard code the newlines and tabs with \n\t using an > emacs-lisp source block and (format), then evaluate to a file, rather > than tangle. I don't think it's a pretty solution, but it does work. Thanks, Tom. I admire your ingenuity, but I think your work-around is too complicated for my purposes. I was hoping to use this example to do a bit of subliminal proselytizing for Org mode. If I tell people that to do this they have to hand code a bunch of newlines and tabs, using Emacs lisp at that, I'm not gonna win many converts. I was hoping that there might be some kind of customization possible: (setq leave-the-bleeping-tabs-alone t) I looked through ob-tangle.el but didn't see anything obvious. (This is neither surprising nor conclusive, given my limited lisp skills.) -- Mike > #+name: configure-makefile > #+header: :file Makefile > #+header: :var > emacs="/Applications/Emacs-23-4.app/Contents/MacOS/Emacs" > #+header: :var init-file="init-new.el" > #+header: :var exporter="new" > #+header: :eval noexport > #+BEGIN_SRC emacs-lisp > (let ((f (file-name-sans-extension (file-name-nondirectory > (buffer-file-name)))) > (g (if (string= exporter "old") > "org-export-as-latex" "org-e-latex-export-to-latex"))) > (format "CC=gcc > EMACS=%s > BATCH_EMACS=$(EMACS) --batch -Q -l %s %s > > all: %s.pdf > > %s.tex: %s.org\n\t$(BATCH_EMACS) -f %s > > %s.pdf: %s.tex\n\trm -f %s.aux\n\tif pdflatex %s.tex > </dev/null; then \\\n\t\ttrue; \\\n\telse > \\\n\t\tstat=$$?; touch %s.pdf; exit $$stat; > \\\n\tfi\n\tbibtex %s\n\twhile grep > \"Rerun to get\" %s.log; do \\\n\t\tif > pdflatex %s.tex </dev/null; then \\\n\t\t\ttrue; > \\\n\t\telse \\\n\t\t\tstat=$$?; > touch %s.pdf; exit $$stat; \\\n\t\tfi; > \\\n\tdone > > %s.ps: %s.pdf\n\tpdf2ps %s.pdf > > clean:\n\trm -f *.aux *.log *.dvi *.blg *.bbl *.toc *.tex *~ *.out > %s.pdf *.xml *.lot *.lof > " emacs init-file (file-name-nondirectory (buffer-file-name)) f f f g f > f f f f f f f f f f f f)) > #+END_SRC > > >> >> >> $ cat Makefile.original >> hw: hw.cpp >> g++ -o hw hw.cpp >> >> $ grep -P "\t" Makefile.original >> hw: hw.cpp >> g++ -o hw hw.cpp >> >> $ make -f Makefile.original >> g++ -o hw hw.cpp >> >> $ ./hw >> Hello, world! >> >> $ \rm hw >> >> $ cat hw.org >> * test preservation of tabs when tangling >> >> #+BEGIN_SRC sh :tangle Makefile.tangled >> >> hw: hw.cpp >> g++ -o hw hw.cpp >> >> #+END_SRC >> >> $ make -f Makefile.tangled >> Makefile.tangled:3: *** missing separator (did you mean TAB instead of 8 >> spaces?). Stop.
