How to config regular expression bypass string =/

[tbin_vhit]

Dear all,
How to config regular expression bypass string =/

[dimir]

It's not easy to do that using POSIX EXTENDED regular expression, you can try something like this. If your bypass string is "string" it would be

([^s]|s[^t]|st[^r]|str[^i]|stri[^n]|strin[^g])

[tbin_vhit]

Hi dimir,
Thank for solution, I would likebypass string = and string \
I was try [=] [\] but not OK.

[dimir]

Try this one:

^[^=\\]*$