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1 files changed, 75 insertions, 0 deletions

diff --git a/autoload/filetype/makefile.kak b/autoload/filetype/makefile.kak
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+++ b/autoload/filetype/makefile.kak
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+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufCreate .*(/?[mM]akefile|\.mk|\.make) %{
+    set-option buffer filetype makefile
+}
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook global WinSetOption filetype=makefile %{
+    require-module makefile
+
+    set-option window static_words %opt{makefile_static_words}
+
+    hook window ModeChange pop:insert:.* -group makefile-trim-indent makefile-trim-indent
+    hook window InsertChar \n -group makefile-indent makefile-indent-on-new-line
+    hook -once -always window WinSetOption filetype=.* %{ remove-hooks window makefile-.+ }
+}
+
+hook -group makefile-highlight global WinSetOption filetype=makefile %{
+    add-highlighter window/makefile ref makefile
+    hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/makefile }
+}
+
+provide-module makefile %{
+
+# Highlighters
+# ‾‾‾‾‾‾‾‾‾‾‾‾
+
+add-highlighter shared/makefile regions
+
+add-highlighter shared/makefile/content default-region group
+add-highlighter shared/makefile/comment region (?<!\\)(?:\\\\)*(?:^|\h)\K# '$' fill comment
+add-highlighter shared/makefile/evaluate-commands region -recurse \( (?<!\$)(?:\$\$)*\K\$\( \) fill value
+
+add-highlighter shared/makefile/content/ regex ^\S.*?(::|:|!)\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 "declare-option str-list makefile_static_words ${keywords}" | tr '|' ' '
+
+    # Highlight keywords
+    printf %s "add-highlighter shared/makefile/content/ regex \b(${keywords})\b 0:keyword"
+}
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+define-command -hidden makefile-trim-indent %{
+    evaluate-commands -no-hooks -draft -itersel %{
+        execute-keys x
+        # remove trailing white spaces
+        try %{ execute-keys -draft s \h + $ <ret> d }
+    }
+}
+
+define-command -hidden makefile-indent-on-new-line %{
+    evaluate-commands -draft -itersel %{
+        # preserve previous line indent
+        try %{ execute-keys -draft <semicolon>K<a-&> }
+        ## If the line above is a target indent with a tab
+        try %{ execute-keys -draft Z kx <a-k>^\S.*?(::|:|!)\s<ret> z i<tab> }
+        # cleanup trailing white space son previous line
+        try %{ execute-keys -draft kx s \h+$ <ret>d }
+        # indent after some keywords
+        try %{ execute-keys -draft Z kx <a-k> ^\h*(ifeq|ifneq|ifdef|ifndef|else|define)\b<ret> z <a-gt> }
+    }
+}
+
+}