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http://bugs.exim.org/show_bug.cgi?id=1600
--- Comment #8 from Philip Hazel <ph10@???> 2015-03-20 11:48:06 ---
On Fri, 20 Mar 2015, Prashant Joshi wrote:
> In our application we used APIs of theses libs.
> I tried to search PCRE version on the older version but do not get.
> In older version we have very few files "pcre.c", "pgrep.c" & "study.c".
> We used function "pcre_complie" & "pcre_exec".
Looks like that is some very, very early version of PCRE, over 15 years
old. It was split into separate files pcre_compile.c, pcre_exec.c, and
so on a long time ago.
> In newer version we have a lot files and we used similar functions in our
> application.
Are you using a PCRE library that is installed in your operating system,
or are you compiling your own library?
> Applications are same for both versions of PCRE.
> No manipulations we have done in regex we directly called these functions.
In that case, the string you pass to pcre_compile() should NOT contain
delimiters. But you have provided contradictory information.
You said:
> > When I changed this regex to below regex it worked with 8.34:
> > Regex 2:
> > /Letzter Messwert[\s]+<\/th><td
> > class="ActualDataTableBody".*>[-+]?([0-9]*\.[0-9]+|[0-9]+)<\/td><td
> > class="ActualDataTableBody".*>[-+]?([0-9]*\.[0-9]+|[0-9]+)<\/td><td
> > class="ActualDataTableBody".*>[-+]?([0-9]*\.[0-9]+|[0-9]+)<\/td><\/tr><tr><th
> > scope="row" class="ActualDataTableRowLabel">Mittelwert/
That regex has delimiters / .... / and you have also escaped the
delimiters within by using \/ where they occur.
The pcre_compile() function does NOT recognize delimiters, so if you
pass that string to it, and then call pcre_exec(), you will be searching
for data that starts
/Letzter Messwert
*including* the leading / character. That is, a call such as
pcre_compile("/Letzer Messwert.....", ....
will match data like this:
...anything anything /Letzer Messwert......
I don't think your problem is a bug in PCRE. Please read carefully the
documentation that comes with the latest release (which is actually
8.36).
Philip
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