Add categories in rc/

Closes #2783

1 files changed, 60 insertions, 0 deletions

diff --git a/rc/filetype/makefile.kak b/rc/filetype/makefile.kak
new file mode 100644
index 00000000..569d51f9
--- /dev/null
+++ b/rc/filetype/makefile.kak
@@ -0,0 +1,60 @@
+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufCreate .*(/?[mM]akefile|\.mk) %{
+    set-option buffer filetype makefile
+}
+
+# Highlighters
+# ‾‾‾‾‾‾‾‾‾‾‾‾
+
+add-highlighter shared/makefile regions
+
+add-highlighter shared/makefile/content default-region group
+add-highlighter shared/makefile/comment region '#' '$' fill comment
+add-highlighter shared/makefile/evaluate-commands region -recurse '\(' '\$\(' '\)' fill value
+
+add-highlighter shared/makefile/content/ regex ^[\w.%-]+\h*:\s 0:variable
+add-highlighter shared/makefile/content/ regex [+?:]= 0:operator
+
+evaluate-commands %sh{
+    # Grammar
+    keywords="ifeq|ifneq|ifdef|ifndef|else|endif|define|endef"
+
+    # Add the language's grammar to the static completion list
+    printf %s\\n "hook global WinSetOption filetype=makefile %{
+        set-option window static_words ${keywords}
+    }" | tr '|' ' '
+
+    # Highlight keywords
+    printf %s "add-highlighter shared/makefile/content/ regex \b(${keywords})\b 0:keyword"
+}
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+define-command -hidden makefile-indent-on-new-line %{
+    evaluate-commands -draft -itersel %{
+        # preserve previous line indent
+        try %{ execute-keys -draft \;K<a-&> }
+        ## If the line above is a target indent with a tab
+        try %{ execute-keys -draft Z k<a-x> <a-k>^[^:]+:\s<ret> z i<tab> }
+        # cleanup trailing white space son previous line
+        try %{ execute-keys -draft k<a-x> s \h+$ <ret>d }
+        # indent after some keywords
+        try %{ execute-keys -draft Z k<a-x> <a-k> ^\h*(ifeq|ifneq|ifdef|ifndef|else|define)\b<ret> z <a-gt> }
+    }
+}
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook -group makefile-highlight global WinSetOption filetype=makefile %{
+    add-highlighter window/makefile ref makefile
+    hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/makefile }
+}
+
+hook global WinSetOption filetype=makefile %{
+    hook window InsertChar \n -group makefile-indent makefile-indent-on-new-line
+    hook -once -always window WinSetOption filetype=.* %{ remove-hooks window makefile-.+ }
+}