home/rc/filetype/ninja.kak

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# ref: https://ninja-build.org/manual.html#ref_ninja_file
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .+\.ninja %{
set-option buffer filetype ninja
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=ninja %{
require-module ninja
set-option window static_words %opt{ninja_static_words}
hook window ModeChange insert:.* -group ninja-trim-indent ninja-trim-indent
hook window InsertChar \n -group ninja-indent ninja-indent-on-new-line
# cleanup trailing whitespaces on current line insert end
hook window ModeChange pop:insert:.* -group ninja-trim-indent %{ try %{ execute-keys -draft <semicolon> <a-x> s ^\h+$ <ret> d } }
hook -once -always window WinSetOption filetype=.* %{ remove-hooks window ninja-.+ }
}
hook -group ninja-highlight global WinSetOption filetype=ninja %{
add-highlighter window/ninja ref ninja
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/ninja }
}
# Lazy loading
provide-module ninja %{
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/ninja regions
# `#`
add-highlighter shared/ninja/comment region '#' '\n' fill comment
# `rule`
add-highlighter shared/ninja/rule region '^rule' '\n' group
add-highlighter shared/ninja/rule/rule regex '^rule' 0:keyword
# `command`
add-highlighter shared/ninja/command region '^\h+command' '[^$]\n' group
add-highlighter shared/ninja/command/command regex 'command' 0:variable
add-highlighter shared/ninja/command/equal regex '=' 0:operator
add-highlighter shared/ninja/command/linebreak regex '\$$' 0:operator
add-highlighter shared/ninja/command/variables regex '\$\w+|\$\{\w+\}' 0:value
# `build`
add-highlighter shared/ninja/build region '^build' '\n' group
add-highlighter shared/ninja/build/build regex '^build\h+' 0:keyword
add-highlighter shared/ninja/build/rule regex ':\h+(\w+)' 0:function
add-highlighter shared/ninja/build/colonpipe regex ':|\||\|\|' 0:operator
add-highlighter shared/ninja/build/variables regex '\$\w+|\$\{\w+\}' 0:value
# variables
add-highlighter shared/ninja/variable region '^\h*\w+\h*=' '\n' group
add-highlighter shared/ninja/variable/name regex '(\w+)\h*=' 0:variable
# TODO: toplevel builddir is conflicting with build
add-highlighter shared/ninja/variable/equal regex '=' 0:operator
# `default`
add-highlighter shared/ninja/default region '^default' '\n' group
add-highlighter shared/ninja/default/default regex '^default' 0:keyword
# `pool`
add-highlighter shared/ninja/pool region '^pool' '\n' group
add-highlighter shared/ninja/pool/pool regex '^pool' 0:keyword
# keywords/builtin variable names
evaluate-commands %sh{
keywords="rule build command default"
reserved_names="builddir ninja_required_version pool depfile deps depfile msvc_deps_prefix description dyndep generator restat rspfile rspfile_content"
printf %s "
declare-option str-list ninja_static_words ${keywords} ${reserved_names}
"
reserved_names_regex="$(echo ${reserved_names} | tr ' ' '|')"
printf %s "
add-highlighter shared/ninja/variable/reserved_names regex ${reserved_names_regex} 0:meta
"
}
# Indent
# ‾‾‾‾‾‾
define-command -hidden ninja-trim-indent %{
# remove trailing white spaces
try %{ execute-keys -draft -itersel <a-x> s \h+$ <ret> d }
}
define-command -hidden ninja-indent-on-new-line %{
evaluate-commands -draft -itersel %{
# copy -- comments 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 : ninja-trim-indent <ret> }
# indent after lines begining with rule and pool (do people want build too ?)
try %{ execute-keys -draft \; k x <a-k> ^(\brule|pool) <ret> j <a-gt> }
}
}
}