Add categories in rc/

Closes #2783

1 files changed, 79 insertions, 0 deletions

diff --git a/rc/filetype/coffee.kak b/rc/filetype/coffee.kak
new file mode 100644
index 00000000..c8e7384e
--- /dev/null
+++ b/rc/filetype/coffee.kak
@@ -0,0 +1,79 @@
+# http://coffeescript.org
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufCreate .*[.](coffee) %{
+    set-option buffer filetype coffee
+}
+
+# Highlighters
+# ‾‾‾‾‾‾‾‾‾‾‾‾
+
+add-highlighter shared/coffee regions
+add-highlighter shared/coffee/code     default-region group
+add-highlighter shared/coffee/single_string     region "'" "'"                    fill string
+add-highlighter shared/coffee/single_string_alt region "'''" "'''"                fill string
+add-highlighter shared/coffee/double_string     region '"' (?<!\\)(\\\\)*"        regions
+add-highlighter shared/coffee/double_string_alt region '"""' '"""'                ref shared/coffee/double_string
+add-highlighter shared/coffee/regex             region '/' (?<!\\)(\\\\)*/[gimy]* regions
+add-highlighter shared/coffee/regex_alt         region '///' ///[gimy]*           ref shared/coffee/regex
+add-highlighter shared/coffee/comment1          region '#' '$'                    fill comment
+add-highlighter shared/coffee/comment2          region '###' '###'                fill comment
+
+# Regular expression flags are: g → global match, i → ignore case, m → multi-lines, y → sticky
+# https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
+
+add-highlighter shared/coffee/double_string/base default-region fill string
+add-highlighter shared/coffee/double_string/interpolation region -recurse \{ \Q#{ \} fill meta
+add-highlighter shared/coffee/regex/base default-region fill meta
+add-highlighter shared/coffee/regex/interpolation region -recurse \{ \Q#{ \} fill meta
+
+# Keywords are collected at
+# https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#Keywords
+# http://coffeescript.org/documentation/docs/lexer.html#section-63
+add-highlighter shared/coffee/code/ regex [$@]\w* 0:variable
+add-highlighter shared/coffee/code/ regex \b(Array|Boolean|Date|Function|Number|Object|RegExp|String)\b 0:type
+add-highlighter shared/coffee/code/ regex \b(document|false|no|null|off|on|parent|self|this|true|undefined|window|yes)\b 0:value
+add-highlighter shared/coffee/code/ regex \b(and|is|isnt|not|or)\b 0:operator
+add-highlighter shared/coffee/code/ regex \b(break|case|catch|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally|for|function|if|implements|import|in|instanceof|interface|let|native|new|package|private|protected|public|return|static|super|switch|throw|try|typeof|var|void|while|with|yield)\b 0:keyword
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+define-command -hidden coffee-trim-indent %{
+    evaluate-commands -draft -itersel %{
+        execute-keys <a-x>
+        # remove trailing white spaces
+        try %{ execute-keys -draft s \h + $ <ret> d }
+    }
+}
+
+define-command -hidden coffee-indent-on-new-line %{
+    evaluate-commands -draft -itersel %{
+        # copy '#' comment prefix and following white spaces
+        try %{ execute-keys -draft k <a-x> s '^\h*\K#\h*' <ret> y gh j P }
+        # preserve previous line indent
+        try %{ execute-keys -draft \; K <a-&> }
+        # filter previous line
+        try %{ execute-keys -draft k : coffee-trim-indent <ret> }
+        # indent after start structure
+        try %{ execute-keys -draft k <a-x> <a-k> ^ \h * (case|catch|class|else|finally|for|function|if|switch|try|while|with) \b | (=|->) $ <ret> j <a-gt> }
+    }
+}
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook -group coffee-highlight global WinSetOption filetype=coffee %{
+    add-highlighter window/coffee ref coffee
+    hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/coffee }
+}
+
+hook global WinSetOption filetype=coffee %{
+    hook window ModeChange insert:.* -group coffee-trim-indent  coffee-trim-indent
+    hook window InsertChar \n -group coffee-indent coffee-indent-on-new-line
+
+    hook -once -always window WinSetOption filetype=.* %{ remove-hooks window coffee-.+ }
+}