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kakoune/rc/filetype/mercury.kak
2021-04-17 20:56:23 +02:00

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# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](m) %{
set-option buffer filetype mercury
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=mercury %{
require-module mercury
set-option window static_words %opt{mercury_static_words}
hook window InsertChar \n -group mercury-insert mercury-insert-on-new-line
hook window InsertChar \n -group mercury-indent mercury-indent-on-new-line
# cleanup trailing whitespaces on current line insert end
hook window ModeChange pop:insert:.* -group mercury-trim-indent %{ try %{ execute-keys -draft <semicolon> <a-x> s ^\h+$ <ret> d } }
hook -once -always window WinSetOption filetype=.* %{ remove-hooks window mercury-.+ }
}
hook -group mercury-highlight global WinSetOption filetype=mercury %{
add-highlighter window/mercury ref mercury
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/mercury }
}
provide-module mercury %§
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/mercury regions
add-highlighter shared/mercury/code default-region group
add-highlighter shared/mercury/comment region '%' '$' fill comment
add-highlighter shared/mercury/line_comment region '%' '$' fill comment
add-highlighter shared/mercury/string region '"' (?<!\\)(\\\\)*" fill string
# Integer formats
add-highlighter shared/mercury/code/ regex '\b0b[01]+\b' 0:value
add-highlighter shared/mercury/code/ regex '\b0x[\da-f]+\b' 0:value
add-highlighter shared/mercury/code/ regex '\b0o?[0-7]+\b' 0:value
add-highlighter shared/mercury/code/ regex '\b([1-9]\d*|0)(i8|i16|i32|i64|u|u8|u16|u32|u64)?\b' 0:value
# Float formats
add-highlighter shared/mercury/code/ regex '\b(\d+_\d+)*\d+[eE][+-]?\d+(\d+_\d+)*\b' 0:value
add-highlighter shared/mercury/code/ regex '(\b\d+)\.\d+\b' 0:value
add-highlighter shared/mercury/code/ regex '`[A-Za-z][A-Za-z_0-9]+`' 0:operator
add-highlighter shared/mercury/code/ regex \b[a-z][A-Za-z_0-9]*(?=\.\w) 0:module
add-highlighter shared/mercury/code/ regex \b[a-z][A-Za-z_0-9]*(?=__\w) 0:module
# func() and pred()
add-highlighter shared/mercury/code/ regex \b(pred|func)(?=\() 0:builtin
add-highlighter shared/mercury/code/ regex \b[A-Z][A-Za-z_0-9]*\b 0:variable
# operator symbols
add-highlighter shared/mercury/code/ regex (\.|!|!\.|!:|@|\^|:|\*\*|\\|\*|/|//|<<|>>|\+|\+\+|-|--|/\\|\\/|\.\.|:=|=\^|<|=|=\.\.|=:=|=<|==|=\\=|>|>=|@<|@=<|@>|@>=|\\=|\\==|~=|\\\+|~|<=|<=>|=>|,|&|->|\;|::|==>|--->|-->|:-|\?-) 0:operator
evaluate-commands %sh{
# Grammar
values="true fail"
# There is overlap between all of these. Not sure what to do about that.
operators="event div mod rem for is and or impure semipure not when all arbitrary atomic disable_warning disable_warnings promise_equivalent_solutions promise_equivalent_solution_setspromise_exclusive promise_exclusive_exhaustive promise_exhaustive promise_impure promise_pure promise_semipure require_complete_switch require_switch_arms_det require_switch_arms_semidet require_switch_arms_multi require_switch_arms_nondet require_switch_arms_cc_multi require_switch_arms_cc_nondet require_switch_arms_erroneous require_switch_arms_failure require_det require_semidet require_multi require_nondet require_cc_multi require_cc_nondet require_erroneous require_failure trace try some or_else then if else where catch catch_any initialize finalize rule solver type pred func inst mode typeclass instance pragma promise initialise finalise mutable module import_module use_module include_module"
modes="free bound in out di mdi uo muo"
determinisms="erroneous failure det semidet multi cc_multi nondet cc_nondet"
reserved_insts="any bound bound_unique clobbered clobbered_any free ground is mostly_clobbered mostly_unique mostly_unique_any not_reached unique unique_any"
reserved_modes="any_func any_pred func is pred"
reserved_types="int int8 int16 int32 int64 uint uint8 uint16 uint32 uint64 float character string pred func pure semipure impure"
declarations="type solver type pred func inst mode typeclass instance pragma promise initialise finalise mutable module interface implementation import_module use_module include_module end_module"
join() { sep=$2; eval set -- $1; IFS="$sep"; echo "$*"; }
# Add the language's grammar to the static completion list
printf %s\\n "declare-option str-list mercury_static_words $(join "${values} ${declarations} ${operators} ${determinisms} ${modes} ${reserved_insts} ${reserved_modes}" ' ')"
# Highlight keywords
printf %s "
add-highlighter shared/mercury/code/ regex '\b($(join "${values}" '|'))\b' 0:value
add-highlighter shared/mercury/code/ regex '^:-(\s+($(join "${declarations}" '|')))+\b' 1:keyword
add-highlighter shared/mercury/code/ regex '\b($(join "${operators}" '|'))\b' 0:operator
add-highlighter shared/mercury/code/ regex '\b($(join "${determinisms}" '|'))\b' 0:keyword
add-highlighter shared/mercury/code/ regex '\b($(join "${modes}" '|'))\b' 0:keyword
# These overlap with previous. Not sure what the solution is.
# add-highlighter shared/mercury/code/ regex '\b($(join "${reserved_types}" '|'))\b' 0:type
# add-highlighter shared/mercury/code/ regex '\b($(join "${reserved_insts}" '|'))\b' 0:builtin
# add-highlighter shared/mercury/code/ regex '\b($(join "${reserved_modes}" '|'))\b' 0:builtin
# Implementation-defined literals - don't know how to get these to work
# add-highlighter shared/mercury/code/ regex '\$(file|line|module|pred)' 0:keyword
"
}
define-command -hidden mercury-insert-on-new-line %{
evaluate-commands -draft -itersel %{
# copy '%' comment prefix and following white spaces
try %{ execute-keys -draft k <a-x> s ^\h*\%\h* <ret> y gh j P }
}
}
define-command -hidden mercury-indent-on-char %<
evaluate-commands -draft -itersel %<
# align closer token to its opener when alone on a line
try %/ execute-keys -draft <a-h> <a-k> ^\h+[]}]$ <ret> m s \A|.\z <ret> 1<a-&> /
>
>
define-command -hidden mercury-indent-on-new-line %<
evaluate-commands -draft -itersel %<
# preserve previous line indent
try %{ execute-keys -draft <semicolon> K <a-&> }
# cleanup trailing whitespaces from previous line
try %{ execute-keys -draft k <a-x> s \h+$ <ret> d }
# indent after line ending with :-
try %{ execute-keys -draft <space> k <a-x> <a-k> :-$ <ret> j <a-gt> }
# deindent closing brace/bracket when after cursor
try %< execute-keys -draft <a-x> <a-k> ^\h*[}\])] <ret> gh / [}\])] <ret> m <a-S> 1<a-&> >
>
>
§