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# zig syntax highlighting for kakoune (https://ziglang.org)
#
# based off of https://github.com/ziglang/zig.vim/blob/master/syntax/zig.vim
# as well as https://ziglang.org/documentation/master/#Grammar
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](zig|zon) %{
set-option buffer filetype zig
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=zig %<
require-module zig
hook window ModeChange pop:insert:.* -group zig-trim-indent zig-trim-indent
hook window InsertChar \n -group zig-insert zig-insert-on-new-line
hook window InsertChar \n -group zig-indent zig-indent-on-new-line
hook window InsertChar \} -group zig-indent zig-indent-on-closing
hook -once -always window WinSetOption filetype=.* %< remove-hooks window zig-.+ >
>
hook -group zig-highlight global WinSetOption filetype=zig %{
require-module zig
add-highlighter window/zig ref zig
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/zig }
}
provide-module zig %§
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/zig regions
add-highlighter shared/zig/code default-region group
add-highlighter shared/zig/doc_comment region '///(?=[^/])' '$' fill documentation
add-highlighter shared/zig/comment region '//' '$' fill comment
# strings and characters
add-highlighter shared/zig/string region '"' (?<!\\)(\\\\)*" group
add-highlighter shared/zig/string/ fill string
add-highlighter shared/zig/string/ regex '(?:\\n|\\r|\\t|\\\\|\\''|\\"|\\x[0-9a-fA-F]{2}|\\u\{[0-9a-fA-F]+\})' 0:meta
add-highlighter shared/zig/character region "'" (?<!\\)(\\\\)*' group
add-highlighter shared/zig/character/ fill string
add-highlighter shared/zig/character/ regex '(?:\\n|\\r|\\t|\\\\|\\''|\\"|\\x[0-9a-fA-F]{2}|\\u\{[0-9a-fA-F]+\})' 0:meta
add-highlighter shared/zig/multiline_string region '\\\\' '$' fill string
# attributes
add-highlighter shared/zig/code/ regex '\b(?:const|var|extern|packed|export|pub|noalias|inline|noinline|comptime|callconv|volatile|allowzero|align|linksection|threadlocal)\b' 0:attribute
# structures
add-highlighter shared/zig/code/ regex '\b(?:struct|enum|union|error|opaque)\b' 0:attribute
# statement
add-highlighter shared/zig/code/ regex '\b(?:break|return|continue|asm|defer|errdefer|unreachable|try|catch|async|noasync|await|suspend|nosuspend|resume)\b' 0:keyword
# conditional
add-highlighter shared/zig/code/ regex '\b(?:if|else|switch|and|or|orelse)\b' 0:keyword
# repeat
add-highlighter shared/zig/code/ regex '\b(?:while|for)\b' 0:keyword
# other keywords
add-highlighter shared/zig/code/ regex '\b(?:fn|usingnamespace|test)\b' 0:keyword
# types
add-highlighter shared/zig/code/ regex '\b(?:bool|f16|f32|f64|f80|f128|void|noreturn|type|anyerror|anyframe|anytype|anyopaque)\b' 0:type
add-highlighter shared/zig/code/ regex '\b(?:i0|u0|isize||usize|comptime_int|comptime_float)\b' 0:type
add-highlighter shared/zig/code/ regex '\b(?:[iu][1-9]\d*)\b' 0:type
add-highlighter shared/zig/code/ regex '\b(?:c_char|c_short|c_ushort|c_int|c_uint|c_long|c_ulong|c_longlong|c_ulonglong|c_longdouble)\b' 0:type
# primitive values
add-highlighter shared/zig/code/ regex '\b(?:true|false|null|undefined)\b' 0:value
# integer literals
add-highlighter shared/zig/code/ regex '\b[0-9](_?[0-9])*\b' 0:value
add-highlighter shared/zig/code/ regex '\b0x[0-9a-fA-F](_?[0-9a-fA-F])*\b' 0:value
add-highlighter shared/zig/code/ regex '\b0o[0-7](_?[0-7])*\b' 0:value
add-highlighter shared/zig/code/ regex '\b0b[01](_?[01])*\b' 0:value
# float literals
add-highlighter shared/zig/code/ regex '\b[0-9]+\.[0-9]+(?:[eE][-+]?[0-9]+)?\b' 0:value
add-highlighter shared/zig/code/ regex '\b0x[0-9a-fA-F]+\.[0-9a-fA-F]+(?:[pP][-+]?[0-9a-fA-F]+)?\b' 0:value
add-highlighter shared/zig/code/ regex '\b[0-9]+\.?[eE][-+]?[0-9]+\b' 0:value
add-highlighter shared/zig/code/ regex '\b0x[0-9a-fA-F]+\.?[eE][-+]?[0-9a-fA-F]+\b' 0:value
# operators
add-highlighter shared/zig/code/ regex '(?:\+|-|\*|/|%|=|<|>|&|\||\^|~|\?|!)' 0:operator
# builtin functions
add-highlighter shared/zig/code/ regex "@(?:addWithOverflow|as|atomicLoad|atomicStore|bitCast|breakpoint|trap|alignCast|alignOf|cDefine|cImport|cInclude|cUndef|clz|cmpxchgWeak|cmpxchgStrong|compileError|compileLog|constCast|ctz|popCount|divExact|divFloor|divTrunc|embedFile|export|extern|tagName|TagType|errorName|call|errorReturnTrace|fence|fieldParentPtr|field|unionInit|frameAddress|import|inComptime|newStackCall|asyncCall|ptrFromInt|max|min|memcpy|memset|mod|mulAdd|mulWithOverflow|splat|src|bitOffsetOf|byteOffsetOf|offsetOf|OpaqueType|panic|prefetch|ptrCast|intFromPtr|rem|returnAddress|setCold|Type|shuffle|reduce|select|setRuntimeSafety|setEvalBranchQuota|setFloatMode|shlExact|This|hasDecl|hasField|shlWithOverflow|shrExact|sizeOf|bitSizeOf|sqrt|byteSwap|subWithOverflow|intCast|floatCast|floatFromInt|intFromFloat|intFromBool|errSetCast|truncate|typeInfo|typeName|TypeOf|atomicRmw|errorFromInt|intFromError|enumFromInt|intFromEnum|setAlignStack|frame|Frame|frameSize|bitReverse|Vector|volatileCast|sin|cos|tan|exp|exp2|log|log2|log10|abs|floor|ceil|trunc|wasmMemorySize|wasmMemoryGrow|round)\b" 0:meta
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden zig-trim-indent %{
# delete trailing whitespace
try %{ execute-keys -draft -itersel x s \h+$ <ret> d }
}
define-command -hidden zig-insert-on-new-line %<
try %[
evaluate-commands -draft -save-regs '/"' %[
# copy // or /// comments prefix or \\ string literal prefix and following whitespace
execute-keys -save-regs '' k x1s^\h*((///?|\\\\)+\h*)<ret> y
try %[
# if the previous comment isn't empty, create a new one
execute-keys x<a-K>^\h*//+\h*$<ret> jxs^\h*<ret>P
] catch %[
# if there is no text in the previous comment, remove it completely
execute-keys d
]
]
# trim trailing whitespace on the previous line
try %[ execute-keys -draft k x s\h+$<ret> d ]
]
>
define-command -hidden zig-indent-on-new-line %<
evaluate-commands -draft -itersel %<
# preserve indent level
try %< execute-keys -draft <semicolon> K <a-&> >
try %<
# only if we didn't copy a comment or multiline string
execute-keys -draft x <a-K> ^\h*(//|\\\\) <ret>
# indent after lines ending in {
try %< execute-keys -draft k x <a-k> \{\h*$ <ret> j <a-gt> >
# deindent closing } when after cursor
try %< execute-keys -draft x <a-k> ^\h*\} <ret> gh / \} <ret> m <a-S> 1<a-&> >
>
# filter previous line
try %< execute-keys -draft k : zig-trim-indent <ret> >
>
>
define-command -hidden zig-indent-on-closing %<
# align lone } to indent level of opening line
try %< execute-keys -draft -itersel <a-h> <a-k> ^\h*\}$ <ret> h m <a-S> 1<a-&> >
>
§
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