Version 1708 was commited by steve on 2010-09-28 09:56:18 +0100 (Tue, 28 Sep
2010)
This can be used to extract substrings from values.
If the "name" tag on an object was equal to "abcdef":
'${name|substring:2}' => 'cdef'
'${name|substring:2:4}' => 'cd'
As an example, it can be used to clean up the "ref" element on route relations:
type=route & route=road & network=US:I & ref ~ 'I\d+' { apply { set
route_network='US:I'; set route_ref='${ref|substring:1}'; } }
type=route & route=road & network=US:I & ref ~ 'I \d+' { apply { set
route_network='US:I'; set route_ref='${ref|substring:2}'; } }
type=route & route=road & network=US:I & ref ~ 'I-\d+' { apply { set
route_network='US:I'; set route_ref='${ref|substring:2}'; } }
type=route & route=road & network=US:I & ref ~ '\d+' { apply { set
route_network='US:I'; set route_ref='${ref}'; } }
-Jeffrey Ollie
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