Add D support, with syntax highlighting and auto-formatting using dfmt

1 files changed, 102 insertions, 0 deletions

diff --git a/rc/dlang.kak b/rc/dlang.kak
new file mode 100644
index 00000000..05bc3f85
--- /dev/null
+++ b/rc/dlang.kak
@@ -0,0 +1,102 @@
+# http://dlang.org/
+#
+
+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufCreate .*\.di? %{
+    set buffer filetype dlang
+}
+
+# Highlighters
+# ‾‾‾‾‾‾‾‾‾‾‾‾
+
+addhl -group / regions -default code dlang \
+    string '"' (?<!\\)(\\\\)*" '' \
+    verbatim_string ` ` '' \
+    verbatim_string_prefixed 'r"' '"' '' \
+	token '#' '\n' '' \
+	disabled /\+ \+/ '' \
+    comment /\* \*/ '' \
+    comment '//' $ ''
+
+addhl -group /dlang/string fill string
+addhl -group /dlang/verbatim_string fill rgb:FF40D4
+addhl -group /dlang/verbatim_string_prefixed fill rgb:FF40D4
+addhl -group /dlang/token fill meta
+addhl -group /dlang/disabled fill rgb:777777
+addhl -group /dlang/comment fill comment
+
+addhl -group /dlang/code regex %{\<(true|false|null|__FILE__|__MODULE__|__LINE__|__FUNCTION__|__PRETTY_FUNCTION__|__DATE__|__EOF__|__TIME__|__TIMESTAMP__|__VENDOR__|__VERSION__)\>|'((\\.)?|[^'\\])'} 0:value
+addhl -group /dlang/code regex "-?([0-9_]*\.(?!0[xXbB]))?\<([0-9_]+|0[xX][0-9a-fA-F_]*\.?[0-9a-fA-F_]+|0[bb][01_]+)([ep]-?[0-9_]+)?[fFlLuUi]*\>" 0:value
+addhl -group /dlang/code regex "\\\(x[0-9a-fA-F]{2}|[0-7]{1,3}|u[0-9a-fA-F]{4}|U[0-9a-fA-F]{8})\>" 0:value
+addhl -group /dlang/code regex "\<(this)\>\s*[^(]" 1:value
+addhl -group /dlang/code regex "\<(bool|byte|cdouble|cfloat|char|creal|dchar|double|dstring|float|idouble|ifloat|int|ireal|long|ptrdiff_t|real|size_t|short|string|ubyte|uint|ulong|ushort|void|wchar|wstring)\>" 0:type
+addhl -group /dlang/code regex "\<(alias|asm|assert|body|cast|class|delegate|delete|enum|function|import|in|interface|invariant|is|lazy|mixin|module|new|out|pragma|struct|super|typeid|typeof|union|unittest|__parameters|__traits|__vector)\>" 0:keyword
+addhl -group /dlang/code regex "\<(break|case|catch|continue|default|do|else|finally|for|foreach|foreach_reverse|goto|if|return|switch|throw|try|with|while)\>" 0:keyword
+addhl -group /dlang/code regex "\<(abstract|align|auto|const|debug|deprecated|export|extern|final|immutable|inout|nothrow|package|private|protected|public|pure|ref|override|scope|shared|static|synchronized|version|__gshared)\>" 0:attribute
+addhl -group /dlang/code regex "@(disable|property|nogc|safe|trusted|system)" 0:attribute
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+def -hidden _dlang-indent-on-new-line %~
+    eval -draft -itersel %=
+        # preserve previous line indent
+        try %{ exec -draft \;K<a-&> }
+        # indent after lines ending with { or (
+        try %[ exec -draft k<a-x> <a-k> [{(]\h*$ <ret> j<a-gt> ]
+        # cleanup trailing white spaces on the previous line
+        try %{ exec -draft k<a-x> s \h+$ <ret>d }
+        # align to opening paren of previous line
+        try %{ exec -draft [( <a-k> \`\([^\n]+\n[^\n]*\n?\' <ret> s \`\(\h*.|.\' <ret> '<a-;>' & }
+        # copy // comments prefix
+        try %{ exec -draft \;<c-s>k<a-x> s ^\h*\K/{2,} <ret> y<c-o><c-o>P<esc> }
+        # indent after a switch's case/default statements
+        try %[ exec -draft k<a-x> <a-k> ^\h*(case|default).*:$ <ret> j<a-gt> ]
+        # indent after if|else|while|for
+        try %[ exec -draft \;<a-F>)MB <a-k> \`(if|else|while|for)\h*\(.*\)\h*\n\h*\n?\' <ret> s \`|.\' <ret> 1<a-&>1<a-space><a-gt> ]
+    =
+~
+
+def -hidden _dlang-indent-on-opening-curly-brace %[
+    # align indent with opening paren when { is entered on a new line after the closing paren
+    try %[ exec -draft -itersel h<a-F>)M <a-k> \`\(.*\)\h*\n\h*\{\' <ret> s \`|.\' <ret> 1<a-&> ]
+]
+
+def -hidden _dlang-indent-on-closing-curly-brace %[
+    # align to opening curly brace when alone on a line
+    try %[ exec -itersel -draft <a-h><a-k>^\h+\}$<ret>hms\`|.\'<ret>1<a-&> ]
+]
+
+decl str dlang_dfmt_options ""
+def dlang-enable-dfmt -docstring "Format the code using the dfmt utility upon saving" %{
+    hook buffer -group dlang-formatter BufWritePre .* %{
+        %sh{
+            echo "exec -draft %{%|dfmt<space>${kak_opt_dlang_dfmt_options// /<space>}<ret>}"
+        }
+    }
+}
+
+def dlang-disable-dfmt -docstring "Disable automatic code formatting" %{
+	rmhooks buffer dlang-formatter
+}
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook global WinSetOption filetype=dlang %{
+    addhl ref dlang
+
+    # cleanup trailing whitespaces when exiting insert mode
+    hook window InsertEnd .* -group dlang-hooks %{ try %{ exec -draft <a-x>s^\h+$<ret>d } }
+    hook window InsertChar \n -group dlang-indent _dlang-indent-on-new-line
+    hook window InsertChar \{ -group dlang-indent _dlang-indent-on-opening-curly-brace
+    hook window InsertChar \} -group dlang-indent _dlang-indent-on-closing-curly-brace
+}
+
+hook global WinSetOption filetype=(?!dlang).* %{
+    rmhl dlang
+    rmhooks window dlang-hooks
+    rmhooks window dlang-indent
+}