life on the eading bledge

[Greg Minshall]

hi.  running c881b60593b3beeed7b8c7a2bada64157cd9940a, the following 

====
*** this =equals= that

and, so on
====

exporting [C-e l o], gives
: replace-regexp-in-string: Wrong type argument: arrayp, nil

cheers, Greg

=====
backtrace:
----
Debugger entered--Lisp error: (wrong-type-argument arrayp nil)
  substring(nil 0 0)
  replace-regexp-in-string("--\\|[\\{}$%&_#~^]" #f(compiled-function (m) 
#<bytecode 0x158244740ef5>) nil nil t)
  org-latex--protect-texttt(nil)
  (lambda (_ c _) (org-latex--protect-texttt c))((verbatim (:value "equals" 
:begin 11 :end 20 :post-blank 1 :parent (headline (:raw-value "this =equals= 
that" :begin 2 :end 37 :pre-blank 1 :contents-begin 26 :contents-end 37 :level 
3 :priority nil :tags nil :todo-keyword nil :todo-type nil :post-blank 0 
:footnote-section-p nil :archivedp nil :commentedp nil :post-affiliated 2 
:title (#("this " 0 5 (:parent #13)) #1 #("that" 0 4 (:parent #13))) :parent 
(org-data nil #13)) (section (:begin 26 :end 37 :contents-begin 26 
:contents-end 37 :post-blank 0 :post-affiliated 26 :parent #13) (paragraph 
(:begin 26 :end 37 :contents-begin 26 :contents-end 37 :post-blank 0 
:post-affiliated 26 :parent #16) #("and, so on\n" 0 11 (:parent #19))))))) nil 
(:export-options nil :back-end #s(org-export-backend :name nil :parent latex 
:transcoders ((underline lambda (o c i) (format "\\underline{%s}" c)) (code 
lambda (_ c _) (org-latex--protect-texttt c)) (verbatim lambda (_ c _) 
(org-latex--protect-texttt c))) :options nil :filters nil :blocks nil :menu 
nil) :translate-alist ((underline lambda (o c i) (format "\\underline{%s}" c)) 
(code lambda (_ c _) (org-latex--protect-texttt c)) (verbatim lambda (_ c _) 
(org-latex--protect-texttt c)) (bold . org-latex-bold) (center-block . 
org-latex-center-block) (clock . org-latex-clock) (code . org-latex-code) 
(drawer . org-latex-drawer) (dynamic-block . org-latex-dynamic-block) (entity . 
org-latex-entity) (example-block . org-latex-example-block) (export-block . 
org-latex-export-block) (export-snippet . org-latex-export-snippet) 
(fixed-width . org-latex-fixed-width) (footnote-definition . 
org-latex-footnote-definition) (footnote-reference . 
org-latex-footnote-reference) (headline . org-latex-headline) (horizontal-rule 
. org-latex-horizontal-rule) (inline-src-block . org-latex-inline-src-block) 
(inlinetask . org-latex-inlinetask) (italic . org-latex-italic) (item . 
org-latex-item) (keyword . org-latex-keyword) (latex-environment . 
org-latex-latex-environment) (latex-fragment . org-latex-latex-fragment) 
(line-break . org-latex-line-break) (link . org-latex-link) (node-property . 
org-latex-node-property) (paragraph . org-latex-paragraph) (plain-list . 
org-latex-plain-list) (plain-text . org-latex-plain-text) (planning . 
org-latex-planning) (property-drawer . org-latex-property-drawer) (quote-block 
. org-latex-quote-block) (radio-target . org-latex-radio-target) (section . 
org-latex-section) (special-block . org-latex-special-block) (src-block . 
org-latex-src-block) (statistics-cookie . org-latex-statistics-cookie) 
(strike-through . org-latex-strike-through) (subscript . org-latex-subscript) 
(superscript . org-latex-superscript) (table . org-latex-table) (table-cell . 
org-latex-table-cell) (table-row . org-latex-table-row) (target . 
org-latex-target) (template . org-latex-template) (timestamp . 
org-latex-timestamp) (underline . org-latex-underline) (verbatim . 
org-latex-verbatim) ...) :exported-data #<hash-table eq 1/401 0x158244e7f291> 
:input-buffer "ffff.org" :input-file "/home/minshall/ffff.org" :latex-class 
"article" :latex-class-options nil :latex-header nil :latex-header-extra nil 
:description nil :keywords nil :subtitle nil :latex-active-timestamp-format 
"\\textit{%s}" :latex-caption-above (table) :latex-classes (("memoir" 
"\\documentclass{memoir}" ("\\section{%s}" . "\\section*{%s}") 
("\\subsection{%s}" . "\\subsection*{%s}") ("\\subsubsection{%s}" . 
"\\subsubsection*{%s}")) ("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}"))) 
:latex-default-figure-position "htbp" :latex-default-table-environment 
"tabular" :latex-default-table-mode table :latex-diary-timestamp-format 
"\\textit{%s}" :latex-footnote-defined-format "\\textsuperscript{\\ref{%s}}" 
:latex-footnote-separator "\\textsuperscript{,}\\," 
:latex-format-drawer-function #f(compiled-function (_ contents) #<bytecode 
0x15824473e14d>) :latex-format-headline-function 
org-latex-format-headline-default-function :latex-format-inlinetask-function 
org-latex-format-inlinetask-default-function ...))
  org-export-data((verbatim (:value "equals" :begin 11 :end 20 :post-blank 1 
:parent (headline (:raw-value "this =equals= that" :begin 2 :end 37 :pre-blank 
1 :contents-begin 26 :contents-end 37 :level 3 :priority nil :tags nil 
:todo-keyword nil :todo-type nil :post-blank 0 :footnote-section-p nil 
:archivedp nil :commentedp nil :post-affiliated 2 :title (#("this " 0 5 
(:parent #13)) #1 #("that" 0 4 (:parent #13))) :parent (org-data nil #13)) 
(section (:begin 26 :end 37 :contents-begin 26 :contents-end 37 :post-blank 0 
:post-affiliated 26 :parent #13) (paragraph (:begin 26 :end 37 :contents-begin 
26 :contents-end 37 :post-blank 0 :post-affiliated 26 :parent #16) #("and, so 
on\n" 0 11 (:parent #19))))))) (:export-options nil :back-end 
#s(org-export-backend :name nil :parent latex :transcoders ((underline lambda 
(o c i) (format "\\underline{%s}" c)) (code lambda (_ c _) 
(org-latex--protect-texttt c)) (verbatim lambda (_ c _) 
(org-latex--protect-texttt c))) :options nil :filters nil :blocks nil :menu 
nil) :translate-alist ((underline lambda (o c i) (format "\\underline{%s}" c)) 
(code lambda (_ c _) (org-latex--protect-texttt c)) (verbatim lambda (_ c _) 
(org-latex--protect-texttt c)) (bold . org-latex-bold) (center-block . 
org-latex-center-block) (clock . org-latex-clock) (code . org-latex-code) 
(drawer . org-latex-drawer) (dynamic-block . org-latex-dynamic-block) (entity . 
org-latex-entity) (example-block . org-latex-example-block) (export-block . 
org-latex-export-block) (export-snippet . org-latex-export-snippet) 
(fixed-width . org-latex-fixed-width) (footnote-definition . 
org-latex-footnote-definition) (footnote-reference . 
org-latex-footnote-reference) (headline . org-latex-headline) (horizontal-rule 
. org-latex-horizontal-rule) (inline-src-block . org-latex-inline-src-block) 
(inlinetask . org-latex-inlinetask) (italic . org-latex-italic) (item . 
org-latex-item) (keyword . org-latex-keyword) (latex-environment . 
org-latex-latex-environment) (latex-fragment . org-latex-latex-fragment) 
(line-break . org-latex-line-break) (link . org-latex-link) (node-property . 
org-latex-node-property) (paragraph . org-latex-paragraph) (plain-list . 
org-latex-plain-list) (plain-text . org-latex-plain-text) (planning . 
org-latex-planning) (property-drawer . org-latex-property-drawer) (quote-block 
. org-latex-quote-block) (radio-target . org-latex-radio-target) (section . 
org-latex-section) (special-block . org-latex-special-block) (src-block . 
org-latex-src-block) (statistics-cookie . org-latex-statistics-cookie) 
(strike-through . org-latex-strike-through) (subscript . org-latex-subscript) 
(superscript . org-latex-superscript) (table . org-latex-table) (table-cell . 
org-latex-table-cell) (table-row . org-latex-table-row) (target . 
org-latex-target) (template . org-latex-template) (timestamp . 
org-latex-timestamp) (underline . org-latex-underline) (verbatim . 
org-latex-verbatim) ...) :exported-data #<hash-table eq 1/401 0x158244e7f291> 
:input-buffer "ffff.org" :input-file "/home/minshall/ffff.org" :latex-class 
"article" :latex-class-options nil :latex-header nil :latex-header-extra nil 
:description nil :keywords nil :subtitle nil :latex-active-timestamp-format 
"\\textit{%s}" :latex-caption-above (table) :latex-classes (("memoir" 
"\\documentclass{memoir}" ("\\section{%s}" . "\\section*{%s}") 
("\\subsection{%s}" . "\\subsection*{%s}") ("\\subsubsection{%s}" . 
"\\subsubsection*{%s}")) ("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}"))) 
:latex-default-figure-position "htbp" :latex-default-table-environment 
"tabular" :latex-default-table-mode table :latex-diary-timestamp-format 
"\\textit{%s}" :latex-footnote-defined-format "\\textsuperscript{\\ref{%s}}" 
:latex-footnote-separator "\\textsuperscript{,}\\," 
:latex-format-drawer-function #f(compiled-function (_ contents) #<bytecode 
0x15824473e14d>) :latex-format-headline-function 
org-latex-format-headline-default-function :latex-format-inlinetask-function 
org-latex-format-inlinetask-default-function ...))
  #f(compiled-function (obj) #<bytecode 0x158244e7f2bd>)((verbatim (:value 
"equals" :begin 11 :end 20 :post-blank 1 :parent (headline (:raw-value "this 
=equals= that" :begin 2 :end 37 :pre-blank 1 :contents-begin 26 :contents-end 
37 :level 3 :priority nil :tags nil :todo-keyword nil :todo-type nil 
:post-blank 0 :footnote-section-p nil :archivedp nil :commentedp nil 
:post-affiliated 2 :title (#("this " 0 5 (:parent #13)) #1 #("that" 0 4 
(:parent #13))) :parent (org-data nil #13)) (section (:begin 26 :end 37 
:contents-begin 26 :contents-end 37 :post-blank 0 :post-affiliated 26 :parent 
#13) (paragraph (:begin 26 :end 37 :contents-begin 26 :contents-end 37 
:post-blank 0 :post-affiliated 26 :parent #16) #("and, so on\n" 0 11 (:parent 
#19))))))))
  mapconcat(#f(compiled-function (obj) #<bytecode 0x158244e7f2bd>) (#("this " 0 
5 (:parent (headline (:raw-value "this =equals= that" :begin 2 :end 37 
:pre-blank 1 :contents-begin 26 :contents-end 37 :level 3 :priority nil :tags 
nil :todo-keyword nil :todo-type nil :post-blank 0 :footnote-section-p nil 
:archivedp nil :commentedp nil :post-affiliated 2 :title #2 :parent (org-data 
nil #6)) (section (:begin 26 :end 37 :contents-begin 26 :contents-end 37 
:post-blank 0 :post-affiliated 26 :parent #6) (paragraph (:begin 26 :end 37 
:contents-begin 26 :contents-end 37 :post-blank 0 :post-affiliated 26 :parent 
#9) #("and, so on\n" 0 11 ...)))))) (verbatim (:value "equals" :begin 11 :end 
20 :post-blank 1 :parent (headline (:raw-value "this =equals= that" :begin 2 
:end 37 :pre-blank 1 :contents-begin 26 :contents-end 37 :level 3 :priority nil 
:tags nil :todo-keyword nil :todo-type nil :post-blank 0 :footnote-section-p 
nil :archivedp nil :commentedp nil :post-affiliated 2 :title #2 :parent 
(org-data nil #16)) (section (:begin 26 :end 37 :contents-begin 26 
:contents-end 37 :post-blank 0 :post-affiliated 26 :parent #16) (paragraph 
(:begin 26 :end 37 :contents-begin 26 :contents-end 37 :post-blank 0 
:post-affiliated 26 :parent #19) #("and, so on\n" 0 11 ...)))))) #("that" 0 4 
(:parent (headline (:raw-value "this =equals= that" :begin 2 :end 37 :pre-blank 
1 :contents-begin 26 :contents-end 37 :level 3 :priority nil :tags nil 
:todo-keyword nil :todo-type nil :post-blank 0 :footnote-section-p nil 
:archivedp nil :commentedp nil :post-affiliated 2 :title #2 :parent (org-data 
nil #8)) (section (:begin 26 :end 37 :contents-begin 26 :contents-end 37 
:post-blank 0 :post-affiliated 26 :parent #8) (paragraph (:begin 26 :end 37 
:contents-begin 26 :contents-end 37 :post-blank 0 :post-affiliated 26 :parent 
#11) #("and, so on\n" 0 11 ...))))))) "")
  org-export-data((#("this " 0 5 (:parent (headline (:raw-value "this =equals= 
that" :begin 2 :end 37 :pre-blank 1 :contents-begin 26 :contents-end 37 :level 
3 :priority nil :tags nil :todo-keyword nil :todo-type nil :post-blank 0 
:footnote-section-p nil :archivedp nil :commentedp nil :post-affiliated 2 
:title #1 :parent ...) (section ... ...)))) (verbatim (:value "equals" :begin 
11 :end 20 :post-blank 1 :parent (headline (:raw-value "this =equals= that" 
:begin 2 :end 37 :pre-blank 1 :contents-begin 26 :contents-end 37 :level 3 
:priority nil :tags nil :todo-keyword nil :todo-type nil :post-blank 0 
:footnote-section-p nil :archivedp nil :commentedp nil :post-affiliated 2 
:title #1 :parent ...) (section ... ...)))) #("that" 0 4 (:parent (headline 
(:raw-value "this =equals= that" :begin 2 :end 37 :pre-blank 1 :contents-begin 
26 :contents-end 37 :level 3 :priority nil :tags nil :todo-keyword nil 
:todo-type nil :post-blank 0 :footnote-section-p nil :archivedp nil :commentedp 
nil :post-affiliated 2 :title #1 :parent ...) (section ... ...))))) 
(:export-options nil :back-end #s(org-export-backend :name nil :parent latex 
:transcoders ((underline lambda (o c i) (format "\\underline{%s}" c)) (code 
lambda (_ c _) (org-latex--protect-texttt c)) (verbatim lambda (_ c _) 
(org-latex--protect-texttt c))) :options nil :filters nil :blocks nil :menu 
nil) :translate-alist ((underline lambda (o c i) (format "\\underline{%s}" c)) 
(code lambda (_ c _) (org-latex--protect-texttt c)) (verbatim lambda (_ c _) 
(org-latex--protect-texttt c)) (bold . org-latex-bold) (center-block . 
org-latex-center-block) (clock . org-latex-clock) (code . org-latex-code) 
(drawer . org-latex-drawer) (dynamic-block . org-latex-dynamic-block) (entity . 
org-latex-entity) (example-block . org-latex-example-block) (export-block . 
org-latex-export-block) (export-snippet . org-latex-export-snippet) 
(fixed-width . org-latex-fixed-width) (footnote-definition . 
org-latex-footnote-definition) (footnote-reference . 
org-latex-footnote-reference) (headline . org-latex-headline) (horizontal-rule 
. org-latex-horizontal-rule) (inline-src-block . org-latex-inline-src-block) 
(inlinetask . org-latex-inlinetask) (italic . org-latex-italic) (item . 
org-latex-item) (keyword . org-latex-keyword) (latex-environment . 
org-latex-latex-environment) (latex-fragment . org-latex-latex-fragment) 
(line-break . org-latex-line-break) (link . org-latex-link) (node-property . 
org-latex-node-property) (paragraph . org-latex-paragraph) (plain-list . 
org-latex-plain-list) (plain-text . org-latex-plain-text) (planning . 
org-latex-planning) (property-drawer . org-latex-property-drawer) (quote-block 
. org-latex-quote-block) (radio-target . org-latex-radio-target) (section . 
org-latex-section) (special-block . org-latex-special-block) (src-block . 
org-latex-src-block) ...) :exported-data #<hash-table eq 1/401 0x158244e7f291> 
:input-buffer "ffff.org" :input-file "/home/minshall/ffff.org" :latex-class 
"article" :latex-class-options nil :latex-header nil :latex-header-extra nil 
:description nil :keywords nil :subtitle nil :latex-active-timestamp-format 
"\\textit{%s}" :latex-caption-above (table) :latex-classes (("memoir" 
"\\documentclass{memoir}" ("\\section{%s}" . "\\section*{%s}") 
("\\subsection{%s}" . "\\subsection*{%s}") ("\\subsubsection{%s}" . 
"\\subsubsection*{%s}")) ("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}") 
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"\\documentclass[11pt]{report}" ("\\part{%s}" . "\\part*{%s}") ("\\chapter{%s}" 
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"\\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}"))) 
:latex-default-figure-position "htbp" :latex-default-table-environment 
"tabular" :latex-default-table-mode table ...))
  org-export-data-with-backend((#("this " 0 5 (:parent ...)) (verbatim (:value 
"equals" :begin 11 :end 20 :post-blank 1 :parent ...)) #("that" 0 4 (:parent 
...))) #s(org-export-backend :name nil :parent latex :transcoders ((underline 
lambda ... ...) (code lambda ... ...) (verbatim lambda ... ...)) :options nil 
:filters nil :blocks nil :menu nil) (:export-options nil :back-end 
#s(org-export-backend :name latex :parent nil :transcoders (... ... ... ... ... 
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 
... ...) :options (... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 
... ... ... ... ... ... ... ... ... ... ... ...) :filters (... ... ... ...) 
:blocks nil :menu (108 "Export to LaTeX" ...)) :translate-alist ((bold . 
org-latex-bold) (center-block . org-latex-center-block) (clock . 
org-latex-clock) (code . org-latex-code) (drawer . org-latex-drawer) 
(dynamic-block . org-latex-dynamic-block) (entity . org-latex-entity) 
(example-block . org-latex-example-block) (export-block . 
org-latex-export-block) (export-snippet . org-latex-export-snippet) 
(fixed-width . org-latex-fixed-width) (footnote-definition . 
org-latex-footnote-definition) (footnote-reference . 
org-latex-footnote-reference) (headline . org-latex-headline) (horizontal-rule 
. org-latex-horizontal-rule) (inline-src-block . org-latex-inline-src-block) 
(inlinetask . org-latex-inlinetask) (italic . org-latex-italic) (item . 
org-latex-item) (keyword . org-latex-keyword) (latex-environment . 
org-latex-latex-environment) (latex-fragment . org-latex-latex-fragment) 
(line-break . org-latex-line-break) (link . org-latex-link) (node-property . 
org-latex-node-property) (paragraph . org-latex-paragraph) ...) :exported-data 
#<hash-table eq 3/4001 0x158244e3f6f9> :input-buffer "ffff.org" :input-file 
"/home/minshall/ffff.org" :latex-class "article" :latex-class-options nil 
:latex-header nil :latex-header-extra nil :description nil :keywords nil 
:subtitle nil ...))
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37 :pre-blank 1 :contents-begin 26 :contents-end 37 :level 3 :priority nil 
:tags nil :todo-keyword nil :todo-type nil :post-blank 0 :footnote-section-p 
nil ...) (section (:begin 26 :end 37 :contents-begin 26 :contents-end 37 
:post-blank 0 :post-affiliated 26 :parent #1) (paragraph ... ...))) #("and, so 
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#s(org-export-backend :name latex :parent nil :transcoders (... ... ... ... ... 
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 
... ...) :options (... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 
... ... ... ... ... ... ... ... ... ... ... ...) :filters (... ... ... ...) 
:blocks nil :menu (108 "Export to LaTeX" ...)) :translate-alist ((bold . 
org-latex-bold) (center-block . org-latex-center-block) (clock . 
org-latex-clock) (code . org-latex-code) (drawer . org-latex-drawer) 
(dynamic-block . org-latex-dynamic-block) (entity . org-latex-entity) 
(example-block . org-latex-example-block) (export-block . 
org-latex-export-block) (export-snippet . org-latex-export-snippet) 
(fixed-width . org-latex-fixed-width) (footnote-definition . 
org-latex-footnote-definition) (footnote-reference . 
org-latex-footnote-reference) (headline . org-latex-headline) (horizontal-rule 
. org-latex-horizontal-rule) (inline-src-block . org-latex-inline-src-block) 
(inlinetask . org-latex-inlinetask) (italic . org-latex-italic) (item . 
org-latex-item) (keyword . org-latex-keyword) (latex-environment . 
org-latex-latex-environment) (latex-fragment . org-latex-latex-fragment) 
(line-break . org-latex-line-break) (link . org-latex-link) (node-property . 
org-latex-node-property) (paragraph . org-latex-paragraph) ...) :exported-data 
#<hash-table eq 3/4001 0x158244e3f6f9> :input-buffer "ffff.org" :input-file 
"/home/minshall/ffff.org" :latex-class "article" :latex-class-options nil 
:latex-header nil :latex-header-extra nil :description nil :keywords nil 
:subtitle nil ...))
  org-export-data((headline (:raw-value "this =equals= that" :begin 2 :end 37 
:pre-blank 1 :contents-begin 26 :contents-end 37 :level 3 :priority nil :tags 
nil :todo-keyword nil :todo-type nil :post-blank 0 :footnote-section-p nil ...) 
(section (:begin 26 :end 37 :contents-begin 26 :contents-end 37 :post-blank 0 
:post-affiliated 26 :parent #1) (paragraph ... ...))) (:export-options nil 
:back-end #s(org-export-backend :name latex :parent nil :transcoders (... ... 
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 
... ... ... ... ...) :options (... ... ... ... ... ... ... ... ... ... ... ... 
... ... ... ... ... ... ... ... ... ... ... ... ... ... ...) :filters (... ... 
... ...) :blocks nil :menu (108 "Export to LaTeX" ...)) :translate-alist ((bold 
. org-latex-bold) (center-block . org-latex-center-block) (clock . 
org-latex-clock) (code . org-latex-code) (drawer . org-latex-drawer) 
(dynamic-block . org-latex-dynamic-block) (entity . org-latex-entity) 
(example-block . org-latex-example-block) (export-block . 
org-latex-export-block) (export-snippet . org-latex-export-snippet) 
(fixed-width . org-latex-fixed-width) (footnote-definition . 
org-latex-footnote-definition) (footnote-reference . 
org-latex-footnote-reference) (headline . org-latex-headline) (horizontal-rule 
. org-latex-horizontal-rule) (inline-src-block . org-latex-inline-src-block) 
(inlinetask . org-latex-inlinetask) (italic . org-latex-italic) (item . 
org-latex-item) (keyword . org-latex-keyword) (latex-environment . 
org-latex-latex-environment) (latex-fragment . org-latex-latex-fragment) 
(line-break . org-latex-line-break) (link . org-latex-link) (node-property . 
org-latex-node-property) (paragraph . org-latex-paragraph) ...) :exported-data 
#<hash-table eq 3/4001 0x158244e3f6f9> :input-buffer "ffff.org" :input-file 
"/home/minshall/ffff.org" :latex-class "article" :latex-class-options nil 
:latex-header nil :latex-header-extra nil :description nil :keywords nil 
:subtitle nil ...))
  #f(compiled-function (element) #<bytecode 0x158244e7ee7d>)((headline 
(:raw-value "this =equals= that" :begin 2 :end 37 :pre-blank 1 :contents-begin 
26 :contents-end 37 :level 3 :priority nil :tags nil :todo-keyword nil 
:todo-type nil :post-blank 0 :footnote-section-p nil :archivedp nil :commentedp 
nil :post-affiliated 2 :title (#("this " 0 5 (:parent #1)) (verbatim (:value 
"equals" :begin 11 :end 20 :post-blank 1 :parent #1)) #("that" 0 4 (:parent 
#1))) :parent (org-data nil #1)) (section (:begin 26 :end 37 :contents-begin 26 
:contents-end 37 :post-blank 0 :post-affiliated 26 :parent #1) (paragraph 
(:begin 26 :end 37 :contents-begin 26 :contents-end 37 :post-blank 0 
:post-affiliated 26 :parent #4) #("and, so on\n" 0 11 (:parent #7))))))
  mapconcat(#f(compiled-function (element) #<bytecode 0x158244e7ee7d>) 
((headline (:raw-value "this =equals= that" :begin 2 :end 37 :pre-blank 1 
:contents-begin 26 :contents-end 37 :level 3 :priority nil :tags nil 
:todo-keyword nil :todo-type nil :post-blank 0 :footnote-section-p nil 
:archivedp nil :commentedp nil :post-affiliated 2 :title (#("this " 0 5 
(:parent #3)) (verbatim (:value "equals" :begin 11 :end 20 :post-blank 1 
:parent #3)) #("that" 0 4 (:parent #3))) :parent (org-data nil . #2)) (section 
(:begin 26 :end 37 :contents-begin 26 :contents-end 37 :post-blank 0 
:post-affiliated 26 :parent #3) (paragraph (:begin 26 :end 37 :contents-begin 
26 :contents-end 37 :post-blank 0 :post-affiliated 26 :parent #6) #("and, so 
on\n" 0 11 (:parent #9)))))) "")
  org-export-data((org-data nil (headline (:raw-value "this =equals= that" 
:begin 2 :end 37 :pre-blank 1 :contents-begin 26 :contents-end 37 :level 3 
:priority nil :tags nil :todo-keyword nil :todo-type nil :post-blank 0 
:footnote-section-p nil ...) (section ... ...))) (:export-options nil :back-end 
#s(org-export-backend :name latex :parent nil :transcoders (... ... ... ... ... 
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 
... ...) :options (... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 
... ... ... ... ... ... ... ... ... ... ... ...) :filters (... ... ... ...) 
:blocks nil :menu (108 "Export to LaTeX" ...)) :translate-alist ((bold . 
org-latex-bold) (center-block . org-latex-center-block) (clock . 
org-latex-clock) (code . org-latex-code) (drawer . org-latex-drawer) 
(dynamic-block . org-latex-dynamic-block) (entity . org-latex-entity) 
(example-block . org-latex-example-block) (export-block . 
org-latex-export-block) (export-snippet . org-latex-export-snippet) 
(fixed-width . org-latex-fixed-width) (footnote-definition . 
org-latex-footnote-definition) (footnote-reference . 
org-latex-footnote-reference) (headline . org-latex-headline) (horizontal-rule 
. org-latex-horizontal-rule) (inline-src-block . org-latex-inline-src-block) 
(inlinetask . org-latex-inlinetask) (italic . org-latex-italic) (item . 
org-latex-item) (keyword . org-latex-keyword) (latex-environment . 
org-latex-latex-environment) (latex-fragment . org-latex-latex-fragment) 
(line-break . org-latex-line-break) (link . org-latex-link) (node-property . 
org-latex-node-property) (paragraph . org-latex-paragraph) ...) :exported-data 
#<hash-table eq 3/4001 0x158244e3f6f9> :input-buffer "ffff.org" :input-file 
"/home/minshall/ffff.org" :latex-class "article" :latex-class-options nil 
:latex-header nil :latex-header-extra nil :description nil :keywords nil 
:subtitle nil ...))
  org-export-as(latex nil nil nil (:output-file "ffff.tex"))
  org-export-to-file(latex "ffff.tex" nil nil nil nil nil #f(compiled-function 
(file) #<bytecode 0x158244744941>))
  org-latex-export-to-pdf(nil nil nil nil)
  (org-open-file (org-latex-export-to-pdf nil s v b))
  (if a (org-latex-export-to-pdf t s v b) (org-open-file 
(org-latex-export-to-pdf nil s v b)))
  (lambda (a s v b) (if a (org-latex-export-to-pdf t s v b) (org-open-file 
(org-latex-export-to-pdf nil s v b))))(nil nil nil nil)
  org-export-dispatch(nil)
  funcall-interactively(org-export-dispatch nil)
  call-interactively(org-export-dispatch nil nil)
  command-execute(org-export-dispatch)