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Andreas Röhler <andreas.roehler@easy-emacs.de> writes:
Behind some opening brackets:
[[[[[
Funktion below would skip backward over
(defun my-skb ()
(interactive)
(skip-chars-backward "[[:alnum:]]"))
Yes, skip-chars-backward doesn't take a regexp, it takes a character
set. You wanted (skip-chars-backward "[:alnum:]")
(skip-chars-backward STRING &optional LIM)
Move point backward, stopping after a char not in STRING
Move point backward, stopping after a char not in STRING, or at pos LIM.
See ‘skip-chars-forward’ for details.
[...]
(skip-chars-forward STRING &optional LIM)
Move point forward, stopping before a char not in STRING, or at pos LIM.
STRING is like the inside of a ‘[...]’ in a regular expression
except that ‘]’ is never special and ‘\’ quotes ‘^’, ‘-’ or ‘\’
(but not at the end of a range; quoting is never needed there).
Thus, with arg "a-zA-Z", this skips letters stopping before first
nonletter.
With arg "^a-zA-Z", skips nonletters stopping before first letter.
Char classes, e.g. ‘[:alpha:]’, are supported.