I see.
Looking at the *replace_interleave *function at
http://svn.python.org/view/python/branches/release25-maint/Objects/stringobject.c?rev=66121&view=auto
, you can see where it checks for an overflow error (about 20 lines
down). It appears to be an architectural limitation based on the
implementation rather than one imposed by the interpreter.
The code in question:
//* Check for overflow *//
//* result_len = count * to_len + self_len; *//
product = count * to_len;
*if* (product / to_len != count) {
PyErr_SetString(PyExc_OverflowError,
*"replace string is too long"*);
*return* NULL;
}
result_len = product + self_len;
*if* (result_len < 0) {
PyErr_SetString(PyExc_OverflowError,
*"replace string is too long"*);
*return* NULL;
}
It may be the case that 502, is not so much a problem as your source
string may be too long, since this seems to calculate the max based on a
combination of the two.
Disclaimer: For anyone reading this who is unfamiliar with C and seeing
the above code, it is C-code not Python-code, just so you wouldn't be
confused.
-tim
Phyo Arkar wrote:
> Dear Tim;
>
> Thanks for quick response all the time.
>
> I am thinking about using re , but i would like to know and confirm if
> str.replace() have limitations on size of string. Which dosen't seem
> to be documented..
>
> Regards,
>
> Phyo.
>
> On Fri, Oct 17, 2008 at 3:02 PM, Timothy Farrell <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
> Regular Expressions would probably be more robust...but doing such a
> large replace seems odd to me. If it were my code I would look for a
> way around not having so much that needed replacing. Or perhaps you
> should use string slicing. Anyway, here's how you would do it
> with regexps:
>
> import re
> re.subn(r'.{1-502}' ,'replacewiththis', srcString)
>
> Phyo Arkar wrote:
> > Dear All;
> >
> > If anyone knows ?I would like to know if there Size Limitation on
> > str.replace() function.
> >
> > Because from what i have tested , it no-longer replace anything
> after
> > 502 length of string.
> >
> > I want to replace a huge block of string and that , i am having
> problem.
> >
> > Regards,
> >
> > Phyo.
> >
> >
> >
> >
> >
> > >
>
>
>
>
> >
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