～/.ctag的作用与配置

里边可以有基本配置和语言正则表达式解析的参数

 # Basic options
 --recurse=yes
 --tag-relative=yes
 --exclude=.git

 # Regex for Clojure
 --langdef=Clojure
 --langmap=Clojure:.clj
 --regex-clojure=/\([ \t]*create-ns[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/n,namespace/
 --regex-clojure=/\([ \t]*def[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/d,definition/
 --regex-clojure=/\([ \t]*defn-?[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/f,function/
 --regex-clojure=/\([ \t]*defmacro[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/m,macro/
 --regex-clojure=/\([ \t]*definline[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/i,inline/
 --regex-clojure=/\([ \t]*defmulti[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/a,multimethod definition/
 --regex-clojure=/\([ \t]*defmethod[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/b,multimethod instance/
 --regex-clojure=/\([ \t]*defonce[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/c,definition (once)/
 --regex-clojure=/\([ \t]*defstruct[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/s,struct/
 --regex-clojure=/\([ \t]*intern[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/v,intern/
 --regex-clojure=/\([ \t]*ns[ \t]+([-[:alnum:]*+!_:\/.?]+)/\/n,namespace/

 # PHP
 --langmap=php:.engine.inc.module.theme.install.php --PHP-kinds=+cf-v