Hello, I've been playing with block chaining to generate some dot file then to export then as images. I had a little trouble finding the number of '\' I need to put in front of a quote if I want the quote to be quoted. Here is a way to make it work:
--8<---------------cut here---------------start------------->8--- #+name: foo #+begin_src emacs-lisp :exports none "bar [label = \"\\\\\"test1\\\\\"\"]\nbaz [label = \"\\\\\"test2\\\\\"\"]" #+end_src #+results: foo : bar [label = "\\"test1\\""] : baz [label = "\\"test2\\""] #+begin_src dot :file ~/tmp/test-dot.png :var input=foo :exports results graph { $input } #+end_src --8<---------------cut here---------------end--------------->8--- My question is: why can't I simply use this: --8<---------------cut here---------------start------------->8--- #+name: foo #+begin_src emacs-lisp :exports none "bar [label = \"\\\"test1\\\"\"]\nbaz [label = \"\\\"test2\\\"\"]" #+end_src #+results: foo : bar [label = "\"test1\""] : baz [label = "\"test2\""] --8<---------------cut here---------------end--------------->8--- (I guess the answer is in the error in replace-regexp-in-string: (error "Invalid use of `\\' in replacement text") .) Would it be problematic to first transform every "\\" into a "\\\\" in org-babel-expand-body:dot, before the call to replace-regexp-in-string? Thanks, Alan