Match Regular Expression won't work with Null

Question

Is that right? I don't see it in the documentation. I can use it on \01 , just not \00.
Is there a way around this problem? I know that Match Pattern works, but I want to use it with separate partial matches (a|b) which Match Pattern does not support.

Answer 1

Here's a possibility:
If you try to set the constant "\00" to "\0" with the '\' Code Display on, it just converts it back to "\00" on the display.
The function uses the PCRE library.  From the library documentation (the pcrepattern man page):
"After \0 up to two further octal digits are read. In both cases, if there
are fewer than two digits, just those that are present are used. Thus the
sequence \0\x\07 specifies two binary zeros followed by a BEL character
(code value 7). Make sure you supply two digits after the initial zero if the
pattern character that follows is itself an octal digit."
So, what if, behind the scenes, LV is actually feeding the match function just a "\0"?  I'm guessing (but haven't been able to verify) it would match *any* input string, immediately, with an offset of zero.  Testing with random search strings shows behavior that might indicate this.
If the above is true, getting around it might be hard, since you're at the mercy of LV as to exactly how it calls that library.
Fun stuff... okay, back to work with me.  Good luck,
Joe Z.