Variable: dabbrev-abbrev-skip-leading-regexp
dabbrev-abbrev-skip-leading-regexp is a customizable variable defined
in dabbrev.el.gz.
Value
nil
Documentation
Regexp for skipping leading characters of an abbreviation.
Example: Set this to "\\\\$" for programming languages
in which variable names may appear with or without a leading $.
(For example, in Makefiles.)
Set this to nil if no characters should be skipped.
Probably introduced at or before Emacs version 19.29.
Source Code
;; Defined in /usr/src/emacs/lisp/dabbrev.el.gz
(defcustom dabbrev-abbrev-skip-leading-regexp nil
"Regexp for skipping leading characters of an abbreviation.
Example: Set this to \"\\\\$\" for programming languages
in which variable names may appear with or without a leading `$'.
\(For example, in Makefiles.)
Set this to nil if no characters should be skipped."
:type '(choice regexp
(const :tag "off" nil))
:group 'dabbrev)