In the Active4D documents there is an example regular expression pattern
like this:
$pattern := "|^(http://)?([^/]+)(/4dcgi)?([^?]+)(\?)?(.*)|i"
In this example, I notice the use of the "|" (pipe) around the pattern.
Is this an A4D specific thing?
In other languages I've seen "/" used and note that some Active4D
examples also use this? The PHP docs that the Active4D documents
reference don't seem to use that syntax and only refer to the "|" as an
alternation meta-character?
Does using "|" as the pattern boundary have special meaning?
Thanks,
Brad Perkins
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