qt-creator

Syntax is similar to bash substitution:

%{variable/pattern/replacement} takes the expansion of variable, and
replaces the regular expression pattern with replacement once.

%{variable//pattern/replacement} replaces all occurrences.

Capture groups are supported for both forms.

Change-Id: I67ff91e2dad4dd8be81573ea446cd1093a05ccf6
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: hjk <hjk@qt.io>