Function: mail--wrap-re-regexp
mail--wrap-re-regexp is a byte-compiled function defined in
mail-utils.el.gz.
Signature
(mail--wrap-re-regexp RE)
Source Code
;; Defined in /usr/src/emacs/lisp/mail/mail-utils.el.gz
(defun mail--wrap-re-regexp (re)
(concat "\\`[ \t]*"
"\\("
re
; Re(1) or Re[1] or Re^1
"\\(([0-9]+)\\|\\[[0-9]+\\]\\|\\^[0-9]+\\)?"
; SPC/NBSP followed by various colon variants and TAB/SPC
" ?\u00a0*"
"[" password-colon-equivalents "]"
"[ \t]*"
; Handle repetition, eg "Re[1]: Re[2]:"
"\\)*"
"[ \t]*"))