27.10.2017 12:01, Amos Jeffries пишет: > On 27/10/17 13:06, Yuri wrote: >> Just for clarify (it is not well-documented. At least I can't find any >> documentation about): >> >> Squid's regex supports only POSIX Basic grammar? >> > > The specific grammar depends on your regex library used to build > Squid, so YMMV. > > Basic POSIX is the only portable grammar that *all* regex libraries > can be expected to support. So Squid does not officially support other > grammars (yet) even if they work in your particular build. That's why I'm asking that the POSIX Extended in the Squid does not work. And it is not well documented anywhere. And there is no easy way to check what regex library Squid uses. I'm trying to find it in configuration, found that: root @ cthulhu /patch/squid-5.0.0-patched-v2.26 # ./configure --help|grep regex --enable-gnuregex Compile GNUregex. Unless you have reason to use this Unix boxes which do not have their own regex library Then see ldd: root @ cthulhu /patch/squid-5.0.0-patched-v2.26 # ldd /usr/local/squid/sbin/squid libpthread.so.1 => /lib/64/libpthread.so.1 libnettle.so.6 => /opt/csw/lib/amd64/libnettle.so.6 libmd5.so.1 => /lib/64/libmd5.so.1 libecap.so.3 => /usr/local/lib/libecap.so.3 libatomic.so.1 => /opt/csw/lib/amd64/libatomic.so.1 libssl.so.1.0.0 => /opt/csw/lib/amd64/libssl.so.1.0.0 libcrypto.so.1.0.0 => /opt/csw/lib/amd64/libcrypto.so.1.0.0 libkrb5.so.1 => /usr/lib/64/libkrb5.so.1 libstdc++.so.6 => /opt/csw/lib/amd64/libstdc++.so.6 libsocket.so.1 => /lib/64/libsocket.so.1 libresolv.so.2 => /lib/64/libresolv.so.2 libnsl.so.1 => /lib/64/libnsl.so.1 libltdl.so.7 => /opt/csw/lib/amd64/libltdl.so.7 libm.so.2 => /lib/64/libm.so.2 librt.so.1 => /lib/64/librt.so.1 libgcc_s.so.1 => /opt/csw/lib/amd64/libgcc_s.so.1 libc.so.1 => /lib/64/libc.so.1 libmp.so.2 => /lib/64/libmp.so.2 libmd.so.1 => /lib/64/libmd.so.1 libscf.so.1 => /lib/64/libscf.so.1 libaio.so.1 => /lib/64/libaio.so.1 libdoor.so.1 => /lib/64/libdoor.so.1 libuutil.so.1 => /lib/64/libuutil.so.1 libgen.so.1 => /lib/64/libgen.so.1 mech_krb5.so.1 => /usr/lib/64/gss/mech_krb5.so.1 libgss.so.1 => /usr/lib/64/libgss.so.1 libpkcs11.so.1 => /usr/lib/64/libpkcs11.so.1 libcmd.so.1 => /lib/64/libcmd.so.1 libcryptoutil.so.1 => /usr/lib/64/libcryptoutil.so.1 From this output, you can not determine the regular expression library that is being used. Although maybe I'm just not looking there. Experimentally, I was able to find out that the grammar of POSIX Extended does not work in any case. However, I believe that such things should be well documented, otherwise the regular expression is simply silently ignored and it is extremely difficult to detect. > > Amos > _______________________________________________ > squid-users mailing list > squid-users@xxxxxxxxxxxxxxxxxxxxx > http://lists.squid-cache.org/listinfo/squid-users -- ************************** * C++: Bug to the future * **************************
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