my .ctags syntax file for Groovy language (exuberant-ctags)

.ctags

--langdef=groovy
--langmap=groovy:.groovy
--regex-groovy=/^[ \t]*package[ \t]+([a-zA-Z0-9.-_]+)/\1/p,package/
--regex-groovy=/^[ \t]*(private|public)?[ \t]*(abstract|final|static)?[ \t]*class[ \t]+([A-Za-z0-9_]+)/\3/c,class/
--regex-groovy=/^[ \t]*(private|public)?[ \t]*interface[ \t]+([A-Za-z0-9_]+)/\2/i,interface/
--regex-groovy=/^[ \t]*(private|public)?[ \t]*trait[ \t]+([A-Za-z0-9_]+)/\2/t,trait/
--regex-groovy=/^[ \t]*(private|public)?[ \t]*enum[ \t]+([A-Za-z0-9_]+)/\2/e,enum/
--regex-groovy=/^[ \t]*[(abstract|final|static) \t]*((def|void|byte|int|short|long|float|double|boolean|char|[A-Z][a-zA-Z0-9_]*)[ \t]+)?([a-zA-Z0-9_]+\(.*\))[ \t]+/~\3/m,package method/
--regex-groovy=/^[ \t]*public[ \t]+[(abstract|final|static) \t]*((def|void|byte|int|short|long|float|double|boolean|char|[A-Z][a-zA-Z0-9_]*)[ \t]+)?([a-zA-Z0-9_]+\(.*\))[ \t]+/+\3/m,public method/
--regex-groovy=/^[ \t]*protected[ \t]+[(abstract|final|static) \t]*((def|void|byte|int|short|long|float|double|boolean|char|[A-Z][a-zA-Z0-9_]*)[ \t]+)?([a-zA-Z0-9_]+\(.*\))[ \t]+/#\3/m,protected method/
--regex-groovy=/^[ \t]*private[ \t]+[(abstract|final|static) \t]*((def|void|byte|int|short|long|float|double|boolean|char|[A-Z][a-zA-Z0-9_]*)[ \t]+)?([a-zA-Z0-9_]+\(.*\))[ \t]+/-\3/m,private method/
--regex-groovy=/^[ \t]*[(final|static|synchronized) \t]*(def|byte|int|short|long|float|double|boolean|char|[A-Z][A-Za-z0-9_]*)[ \t]+([a-zA-Z0-9_]+)([ \t]*[\/]+.*)?/~\2/f,property/
--regex-groovy=/^[ \t]*public[ \t]+[(final|static|synchronized) \t]*(def|byte|int|short|long|float|double|boolean|char|[A-Z][a-zA-Z0-9_]*)[ \t]+([a-zA-Z0-9_]+)([ \t]*[\/]+.*)?/+\2/f,public field/
--regex-groovy=/^[ \t]*protected[ \t]+[(final|static|synchronized) \t]*(def|byte|int|short|long|float|double|boolean|char|[A-Z][a-zA-Z0-9_]*)[ \t]+([a-zA-Z0-9_]+)([ \t]*[\/]+.*)?/#\2/f,protected field/
--regex-groovy=/^[ \t]*private[ \t]+[(final|static|synchronized) \t]*(def|byte|int|short|long|float|double|boolean|char|[A-Z][a-zA-Z0-9_]*)[ \t]+([a-zA-Z0-9_]+)([ \t]*[\/]+.*)?/-\2/f,private field/