User Manual User Manual

Metacharacter Syntax Operator Name Description
. Any Character -- Dot Matches any character.
+ One or More -- Plus
Quantifier
Matches one or more
occurrences of the
preceding subexpression.
? Zero or One -- Question
Mark Quantifier
Matches zero or one
occurrence of the preceding
subexpression.
* Zero or More -- Star
Quantifier
Matches zero or more
occurrences of the
preceding subexpression.
{m} Interval--Exact Count Matches exactly m
occurrences of the
preceding subexpression.
{m,} Interval--At Least Count Matches at least m
occurrences of the
preceding subexpression.
{m,n} Interval--Between Count Matches at least m, but not
more than n occurrences of
the preceding
subexpression.
[... ] Matching Character List Matches any character in
list ...
[^ ... ] Non-Matching Character
List
Matches any character not
in list ...
| Or 'a|b' matches character 'a' or
'b'.
(... ) Subexpression or Grouping Treat expression ... as a
unit. The subexpression can
be a string of literals or a
complex expression
containing operators.
\n Backreference Matches the nth preceding
subexpression, where n is
an integer from 1 to 9.
94 6. Configuring the Application
EVS Broadcast Equipment S.A. - October 2012 Issue 3.0.D