add rc/fish.kak

rc/fish.kak

@@ -0,0 +1,70 @@
+# http://fishshell.com
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufSetOption mimetype=text/x-fish %{
+    set buffer filetype fish
+}
+
+hook global BufCreate .*[.](fish) %{
+    set buffer filetype fish
+}
+
+# Highlighters
+# ‾‾‾‾‾‾‾‾‾‾‾‾
+
+addhl -group / multi_region -default code fish \
+    double_string (^|\h)" (?<!\\)(\\\\)*" ''   \
+    single_string (^|\h)' (?<!\\)(\\\\)*' ''   \
+    comment       (^|\h)# $               ''
+
+addhl -group /fish/double_string fill string
+addhl -group /fish/double_string regex (\$\w+)|(\{\$\w+\}) 0:identifier
+addhl -group /fish/single_string fill string
+addhl -group /fish/comment       fill comment
+
+addhl -group /fish/code regex (\$\w+)|(\{\$\w+\}) 0:identifier
+
+# Command names generated by fish
+addhl -group /fish/code regex %sh{ printf '\<(%s)\>' $(printf '\Q%s\\E|' $(fish --command 'builtin --names' --command 'functions --names' | tr --delete ,)) } 0:keyword
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+def -hidden _fish_clean_around_selections %{
+    eval -draft -itersel %{
+        # trailing white spaces
+        try %{ exec -draft <a-x> s \h+$ <ret> d }
+    }
+}
+
+def -hidden _fish_indent_on_new_line %{
+    eval -draft -itersel %{
+        # preserve previous line indent
+        try %{ exec -draft <space> K <a-&> }
+        # cleanup previous line
+        try %{ exec -draft k : _fish_clean_around_selections <ret> }
+        # copy '#' comment prefix and following white spaces
+        try %{ exec -draft k x s ^\h*\K#\h* <ret> y j p }
+        # indent after (begin|for|function|if|switch|while) commands and add 'end' command
+        try %{ exec -draft <space> k x <a-k> (begin|for|function|if|switch|while) <ret> x y p j a end <esc> k <a-gt> }
+    }
+}
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook global WinSetOption filetype=fish %{
+    addhl ref fish
+
+    hook window InsertEnd  .* -group fish-hooks  _fish_clean_around_selections
+    hook window InsertChar \n -group fish-indent _fish_indent_on_new_line
+}
+
+hook global WinSetOption filetype=(?!fish).* %{
+    rmhl fish
+    rmhooks window fish-indent
+    rmhooks window fish-hooks
+}