[O] Bug: ox-latex math in headings export error [8.3.6 (release_8.3.6-1257-g33f8f8 @ /Users/stefanos/org-mode/lisp/)]

[Stefanos Carlström]

Remember to cover the basics, that is, what you expected to happen and
what in fact did happen.  You don't know how to make a good report?  See

     http://orgmode.org/manual/Feedback.html#Feedback

Your bug report will be posted to the Org mailing list.
------------------------------------------------------------------------

Exporting a simple document such as

  * Section heading with math \(\pi\) bug

with ox-latex on HEAD gives the attached output, which does not compile,
due to the newline in the exported heading.

  % Created 2016-10-28 Fri 12:31
  % Intended LaTeX compiler: pdflatex
  \documentclass[11pt]{article}
  \usepackage[utf8]{inputenc}
  \usepackage[T1]{fontenc}
  \usepackage{graphicx}
  \usepackage{grffile}
  \usepackage{longtable}
  \usepackage{wrapfig}
  \usepackage{rotating}
  \usepackage[normalem]{ulem}
  \usepackage{amsmath}
  \usepackage{textcomp}
  \usepackage{amssymb}
  \usepackage{capt-of}
  \usepackage{hyperref}
  \author{Stefanos Carlström}
  \date{\today}
  \title{}
  \hypersetup{
   pdfauthor={Stefanos Carlström},
   pdftitle={},
   pdfkeywords={},
   pdfsubject={},
   pdfcreator={Emacs 25.1.1 (Org mode 8.3.6)}, 
   pdflang={English}}
  \begin{document}
  
  \tableofcontents
  
  \section{Section heading with math \(\pi\)
  
  bug}
  \label{sec:org16a7736}
  \end{document}
  
  which does not compile.
  
  Emacs  : GNU Emacs 25.1.1 (x86_64-apple-darwin13.4.0, NS appkit-1265.21 
Version 10.9.5 (Build 13F1911))
   of 2016-09-21
  Package: Org mode version 8.3.6 (release_8.3.6-1257-g33f8f8 @ 
/Users/stefanos/org-mode/lisp/)
  
  current state:
  ==============
  (setq
   org-hide-leading-stars t
   org-pandoc-epub-rights "Copyright 2016 Stefanos Carlström <>"
   org-tab-first-hook '(org-babel-hide-result-toggle-maybe
                        org-babel-header-arg-expand)
   outline-minor-mode-hook '(outshine-hook-function)
   org-latex-classes '(("beamer" "\\documentclass[presentation]{beamer}"
                        ("\\section{%s}" . "\\section*{%s}")
                        ("\\subsection{%s}" . "\\subsection*{%s}")
                        ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
                       ("article" "\\documentclass[11pt]{article}"
                        ("\\section{%s}" . "\\section*{%s}")
                        ("\\subsection{%s}" . "\\subsection*{%s}")
                        ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
                        ("\\paragraph{%s}" . "\\paragraph*{%s}")
                        ("\\subparagraph{%s}" . "\\subparagraph*{%s}"))
                       ("report" "\\documentclass[11pt]{report}"
                        ("\\part{%s}" . "\\part*{%s}")
                        ("\\chapter{%s}" . "\\chapter*{%s}")
                        ("\\section{%s}" . "\\section*{%s}")
                        ("\\subsection{%s}" . "\\subsection*{%s}")
                        ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
                       ("book" "\\documentclass[11pt]{book}"
                        ("\\part{%s}" . "\\part*{%s}")
                        ("\\chapter{%s}" . "\\chapter*{%s}")
                        ("\\section{%s}" . "\\section*{%s}")
                        ("\\subsection{%s}" . "\\subsection*{%s}")
                        ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
                       ("landau-book" "\\documentclass[11pt]{book}"
                        ("\\chapter{%s}" . "\\chapter*{%s}")
                        ("\\section{%s}" . "\\section*{%s}")
                        ("\\subsection{%s}" . "\\subsection*{%s}")
                        ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
                       )
   org-speed-command-hook '(org-speed-command-default-hook
                            org-babel-speed-command-hook)
   org-occur-hook '(org-first-headline-recenter)
   org-metaup-hook '(org-babel-load-in-session-maybe)
   org-html-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
   org-format-latex-options '(:foreground default :background default :scale 2
                              :html-foreground "Black" :html-background 
"Transparent"
                              :html-scale 1.0 :matchers
                              ("begin" "$1" "$" "$$" "\\(" "\\["))
   org-latex-format-inlinetask-function 
'org-latex-format-inlinetask-default-function
   org-confirm-shell-link-function 'yes-or-no-p
   org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default
   org-latex-pdf-process '("latexmk -pdflatex='pdflatex -shell-escape' -pdf %f")
   org-preview-latex-default-process 'imagemagick
   org-babel-clojure-backend 'cider
   org-latex-format-headline-function 
'org-latex-format-headline-default-function
   org-default-notes-file "/Users/stefanos/org/notes.org"
   org-after-todo-state-change-hook '(org-clock-out-if-current)
   org-latex-format-drawer-function #[514 "\207" [] 3 "\n\n(fn _ CONTENTS)"]
   org-odt-format-headline-function 'org-odt-format-headline-default-function
   org-from-is-user-regexp "\\<Stefanos Carlström\\>"
   org-src-mode-hook '(org-src-babel-configure-edit-buffer
                       org-src-mode-configure-edit-buffer)
   org-agenda-before-write-hook '(org-agenda-add-entry-text)
   org-babel-pre-tangle-hook '(save-buffer)
   org-trigger-hook '(org-depend-trigger-todo)
   org-ascii-format-drawer-function #[771 "
\207" [] 4 "\n\n(fn NAME CONTENTS 
WIDTH)"]
   org-odt-format-inlinetask-function 
'org-odt-format-inlinetask-default-function
   org-directory "/Users/stefanos/org"
   org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers
                    org-cycle-show-empty-lines
                    org-optimize-window-after-visibility-change)
   org-export-before-processing-hook '(my-auto-tex-cmd)
   org-babel-python-command "python3"
   org-download-annotate-function 'org-download-annotate-default
   org-babel-tangle-lang-exts '(("clojure" . "clj") ("ruby" . "rb") ("D" . "d")
                                ("C++" . "cpp") ("julia" . "jl") ("python" . 
"py")
                                ("emacs-lisp" . "el") ("elisp" . "el"))
   org-confirm-elisp-link-function 'yes-or-no-p
   org-metadown-hook '(org-babel-pop-to-session-maybe)
   org-odt-format-drawer-function #[514 "\207" [] 3 "\n\n(fn NAME CONTENTS)"]
   org-babel-after-execute-hook '(org-display-inline-images)
   org-latex-listings 'minted
   org-blocker-hook '(org-depend-block-todo)
   org-html-format-headline-function 'org-html-format-headline-default-function
   org-agenda-files '("~/org/todo.org" "~/org/notes.org")
   org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
   org-confirm-babel-evaluate nil
   )