Re: replace-regexp-in-string, using the dyn scoped variable STR

[Andreas Schwab]

Stefan Monnier <address@hidden> writes:

>>> (setq org-str (replace-regexp-in-string
>>> "&#x\\([a-f0-9]\\{2,4\\}\\);"
>>> (lambda (m)
>>> (char-to-string
>>> ;; Note: str is scoped dynamically from
>>> ;; `replace-regexp-in-string'.
>>> (+ (string-to-number (match-string 1 str) 16)
>
>> `str' has the same value as `m'.
>
> No, it doesn't: str is "the whole string" whereas m is only the
> (match-string 0) part of it

Which is always a prefix of str, and only different from str if the
match was empty.

> (which is why it's more convenient to use (match-string 1 str) in
> Lennart's example than to try and figure out where submatch 1 is in m,

The submatch 1 of m is at (match-beginning 1).

Andreas.

-- 
Andreas Schwab, address@hidden
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