Mega Code Archive
An unescaped vertical bar() matches either the regular expression that precedes it or the regular expression that follows it.t
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def show_regexp(a, re)
if a =~ re
"#{$`}<<#{$&}>>#{$'}"
else
"no match"
end
end
a = "this is a test"
show_regexp(a, /d|e/)
show_regexp(a, /al|lu/)
show_regexp(a, /is test|this is/)
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