Re: replace-regexp

[Emanuel Berg]

>>> so I wrote this and it does the job but reports the error
>>> "while: Invalid search bound (wrong side of point)"
>>>
>>> (defun md-latex (beg end)
>>>   (interactive "r")
>>>   (save-excursion
>>>     (goto-char beg)
>>>     (while (re-search-forward "_\\(.*\\)_" end t)
>>>       (replace-match  "\\\\textit{\\1}") )))
>>
>> I think you didn't call your command interactively but
>> through code like (md-latex 170 82) where the BEG was
>> larger than END. When being called interactively the "r"
>> spec makes sure that BEG is always the smaller one, no
>> matter if point is before mark or the other way round.
>
> Nope, I called it with M-x. Tried again now, still the same
> error. It works but I get the error.
>
> Maybe it has something to do with the replacement being
> longer than the original string?

That's it, I think, as this doesn't give me the error:

(defun md-latex-reduce (beg end)
  (interactive "r")
  (save-excursion
    (goto-char beg)
    (while (re-search-forward "_\\(.*\\)_" end t)
      (replace-match "\\1") )))

(Now the function doesn't make any sense, so this is just to
try my theory...)

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