> However, `up-list' does not let you move up out of a string:
That's because you have to know whether you're inside or outside in order to
know whether a " closes or opens a string. In contrast a ( or )
unambiguously identifies whether it closes or opens a paren.
Knowing whether you're inside a string can require scanning the whole buffer
from point-min, which can be problematic. The new function syntax-ppss can
be used to try and make this efficient, but any such change should be
postponed to after Emacs-22.1.
Stefan
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