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mirror of https://github.com/mawww/kakoune.git synced 2024-12-18 17:02:06 +03:00
kakoune/rc/extra/racer.kak
Marc f6a3fd2e4e Unify racer code completion format
Makes all the suggestions on the completion menu have the same format:
  {type}{suggestedWord}{extra description}

the type column is aligned to 6 characters wide (and aligned to the right),
to allow the suggestion to be easily visually detectable and, as a bonus,
the type too.

For example, a bit of menu would look like this:
        fn stdout() -> Stdout
     trait BufRead: Read
    struct BufReader<R>

Type is one of the following:
  -     fn
  -   enum
  -    mod
  -  trait
  - struct

It also trims the module extra bits to only 30 characters long (it can be a lot longer than that)
2018-02-26 13:07:41 +00:00

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declare-option -hidden str racer_tmp_dir
declare-option -hidden completions racer_completions
define-command racer-complete -docstring "Complete the current selection with racer" %{
%sh{
dir=$(mktemp -d "${TMPDIR:-/tmp}"/kak-racer.XXXXXXXX)
printf %s\\n "set-option buffer racer_tmp_dir ${dir}"
printf %s\\n "evaluate-commands -no-hooks %{ write ${dir}/buf }"
}
%sh{
dir=${kak_opt_racer_tmp_dir}
(
cursor="${kak_cursor_line} $((${kak_cursor_column} - 1))"
racer_data=$(racer --interface tab-text complete-with-snippet ${cursor} ${kak_buffile} ${dir}/buf)
compl=$(printf %s\\n "${racer_data}" | awk '
BEGIN { FS = "\t"; ORS = ":" }
/^PREFIX/ {
column = ENVIRON["kak_cursor_column"] + $2 - $3
print ENVIRON["kak_cursor_line"] "." column "\\@" ENVIRON["kak_timestamp"]
}
/^MATCH/ {
word = $2
type = $7
desc = substr($9, 2, length($9) - 2)
gsub(/\|/, "\\|", desc)
gsub(/\\n/, "\n", desc)
menu = $8
sub(/^pub /, "", menu)
gsub(/\|/, "\\|", menu)
if (type == "Function") {
sub(word, "{default+e}" word "{default+d}", menu)
gsub(/^fn /, " fn ", menu) # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
menu = "{default+d}" menu
} else if (type == "Enum") {
menu = substr(menu, 0, length(menu) - 2)
sub(word, "{default+e}" word "{default+d}", menu)
gsub(/^enum /, " enum ", menu) # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
} else if (type == "Module") {
if (length(menu) > 30) { # The "menu" bit (as returned by racer),
# contains the path to the source file
# containing the module...
menu = substr(menu, length(menu) - 29, 30) # ... trimming it, so the completion menu
# doesn''t get distorted if it''s too long
}
menu = " mod {default+e}" word "{default+d} .." menu # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
} else if (type == "Trait") {
sub(word, "{default+e}" word "{default+d}", menu)
gsub(/^trait /, " trait ", menu) # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
} else if (type == "Type") {
sub(word, "{default+e}" word "{default+d}", menu)
gsub(/^type /, " type ", menu) # The extra spaces are there to vertically align
# the type of element on the menu to make it easy
# to read
} else if (type == "Struct") {
sub(word, "{default+e}" word "{default+d}", menu) # Struct doesn''t have extra spaces because it''s
# the longest keyword
} else {
menu = "{default+e}" word "{default+d} " menu
}
candidate = word "|" desc "|" menu
gsub(/:/, "\\:", candidate)
print candidate
}'
)
printf %s\\n "evaluate-commands -client '${kak_client}' %{
set-option buffer=${kak_bufname} racer_completions %@${compl: : -1}@
}" | kak -p ${kak_session}
rm -r ${dir}
) > /dev/null 2>&1 < /dev/null &
}
}
define-command racer-enable-autocomplete -docstring "Add racer completion candidates to the completer" %{
set-option window completers "option=racer_completions:%opt{completers}"
hook window -group racer-autocomplete InsertIdle .* %{ try %{
execute-keys -draft <a-h><a-k>([\w\.]|::).\z<ret>
racer-complete
} }
alias window complete racer-complete
}
define-command racer-disable-autocomplete -docstring "Disable racer completion" %{
set-option window completers %sh{ printf %s\\n "'${kak_opt_completers}'" | sed 's/option=racer_completions://g' }
remove-hooks window racer-autocomplete
unalias window complete racer-complete
}