Variable: org-latex-regexps
org-latex-regexps is a variable defined in org.el.gz.
Value
(("begin" "^[ ]*\\(\\\\begin{\\([a-zA-Z0-9\\*]+\\)[^]+?\\\\end{\\2}\\)" 1 t)
("$1" "\\([^$]\\|^\\)\\(\\$[^
\n,;.$]\\$\\)\\(\\s.\\|\\s-\\|\\s(\\|\\s)\\|\\s\"\\|\\|'\\|$\\)" 2 nil)
("$" "\\([^$]\\|^\\)\\(\\(\\$\\([^ \n,;.$][^$\n
]*?\\(\n[^$\n
]*?\\)\\{0,2\\}[^ \n,.$]\\)\\$\\)\\)\\(\\s.\\|\\s-\\|\\s(\\|\\s)\\|\\s\"\\|\\|'\\|$\\)" 2 nil)
("\\(" "\\\\([^]*?\\\\)" 0 nil)
("\\[" "\\\\\\[[^]*?\\\\\\]" 0 nil)
("$$" "\\$\\$[^]*?\\$\\$" 0 nil))
Documentation
Regular expressions for matching embedded LaTeX.
Source Code
;; Defined in /usr/src/emacs/lisp/org/org.el.gz
;;;; LaTeX Environments and Fragments
(defconst org-latex-regexps
'(("begin" "^[ \t]*\\(\\\\begin{\\([a-zA-Z0-9\\*]+\\)[^\000]+?\\\\end{\\2}\\)" 1 t)
;; ("$" "\\([ \t(]\\|^\\)\\(\\(\\([$]\\)\\([^ \t\n,.$].*?\\(\n.*?\\)\\{0,5\\}[^ \t\n,.$]\\)\\4\\)\\)\\([ \t.,?;:'\")]\\|$\\)" 2 nil)
;; \000 in the following regex is needed for org-inside-LaTeX-fragment-p
("$1" "\\([^$]\\|^\\)\\(\\$[^ \t\r\n,;.$]\\$\\)\\(\\s.\\|\\s-\\|\\s(\\|\\s)\\|\\s\"\\|\000\\|'\\|$\\)" 2 nil)
("$" "\\([^$]\\|^\\)\\(\\(\\$\\([^ \t\n,;.$][^$\n\r]*?\\(\n[^$\n\r]*?\\)\\{0,2\\}[^ \t\n,.$]\\)\\$\\)\\)\\(\\s.\\|\\s-\\|\\s(\\|\\s)\\|\\s\"\\|\000\\|'\\|$\\)" 2 nil)
("\\(" "\\\\([^\000]*?\\\\)" 0 nil)
("\\[" "\\\\\\[[^\000]*?\\\\\\]" 0 nil)
("$$" "\\$\\$[^\000]*?\\$\\$" 0 nil))
"Regular expressions for matching embedded LaTeX.")