At 2:15 pm -0700 13/11/03, Dar Scott wrote:

Yikes. I mean the negative assertion (?<! ). This should also take care of the start.

So tinker with this:

replaceText(pStr, "(?<!\\)\\"&quote, "\"&quote)

Thanks for the pointer, Dar. It looks like this will do it.


  put "(?<!\\)" & quote into tRegEx
  replaceText(tStr, tRegEx, "\" & quote)
.
Although for this example, this might be easier:

  replace quote with "\" & quote in tStr
  replace "\\" & quote with "\" & quote in tStr

At 12:40 pm -0700 13/11/03, Alex Rice wrote:
I can't remember- are any of Rev's REGEX functions capable of doing backreferences?

Alex, it seems you can't backreference in the replacement expression as in Perl, but you can in the "find" expression, using "\1", "\2", etc.


In Perl, I don't think the $1, $2, etc. in the replacement expression are strictly regular expression elements. They are really special Perl variables. For example, you can use $1 at anytime after a match and it will still hold the matched value.. However, it would be nice to have this ability in Rev, but I don't think $1, etc, would work as it would clash with Rev's environment variables.

Cheers
Dave

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