add rc/grep.kak which provides a grep and gjump command

src/kakrc

@@ -7,3 +7,4 @@ runtime rc/git.kak
 runtime rc/global.kak
 runtime rc/diff.kak
 runtime rc/make.kak
+runtime rc/grep.kak

src/rc/grep.kak

@@ -0,0 +1,14 @@
+def -env-params grep %{ echo grep in progress, please wait...; %sh{
+     output=$(mktemp -t kak-grep.XXXXXXXX)
+     grep -Hn $kak_param0 $kak_param1 $kak_param2 $kak_param3 $kak_param4 >& ${output}
+     echo "echo; edit ${output}; setb filetype grep; hook buffer BufClose ${output} %{ %sh{rm ${output} } }"
+}}
+
+hook global WinSetOption filetype=grep %{
+    addhl group grep-highlight
+    addhl -group grep-highlight regex "^([^:]+):(\d+):" 1:cyan 2:green
+}
+
+hook global WinSetOption filetype=(?!grep).* %{ rmhl grep-highlight; }
+
+def gjump %{ exec 'xs^([^:]+):(\d+)<ret>'; edit %sh{ echo ${kak_reg_1} ${kak_reg_2} } }