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kakoune/rc/filetype/ocaml.kak
Sidharth Kshatriya 101425e289 OCaml: Add a command to shift between .ml and .mli files and vice versa
C has header and source files and you need to often switch between them.
Similarly OCaml has .ml (implementation) and .mli (interface files) and
one often needs to switch between them.

This commit provides a simple functionality that allows you to accomplish this.
2021-11-10 12:22:08 +05:30

100 lines
4.4 KiB
Plaintext

# http://ocaml.org
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*\.mli? %{
set-option buffer filetype ocaml
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=ocaml %{
require-module ocaml
set-option window static_words %opt{ocaml_static_words}
}
hook -group ocaml-highlight global WinSetOption filetype=ocaml %{
add-highlighter window/ocaml ref ocaml
alias window alt ocaml-alternative-file
hook -once -always window WinSetOption filetype=.* %{
unalias window alt ocaml-alternative-file
remove-highlighter window/ocaml
}
}
provide-module ocaml %{
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/ocaml regions
add-highlighter shared/ocaml/code default-region group
add-highlighter shared/ocaml/string region (?<!')" (?<!\\)(\\\\)*" fill string
add-highlighter shared/ocaml/quotedstring region -match-capture %"\{(\w*)\|" %"\|(\w*)\}" fill string
add-highlighter shared/ocaml/comment region -recurse \Q(* \Q(* \Q*) fill comment
add-highlighter shared/ocaml/code/char regex %{\B'([^'\\]|(\\[\\"'nrtb])|(\\\d{3})|(\\x[a-fA-F0-9]{2})|(\\o[0-7]{3}))'\B} 0:value
# integer literals
add-highlighter shared/ocaml/code/ regex \b[0-9][0-9_]*([lLn]?)\b 0:value
add-highlighter shared/ocaml/code/ regex \b0[xX][A-Fa-f0-9][A-Fa-f0-9_]*([lLn]?)\b 0:value
add-highlighter shared/ocaml/code/ regex \b0[oO][0-7][0-7_]*([lLn]?)\b 0:value
add-highlighter shared/ocaml/code/ regex \b0[bB][01][01_]*([lLn]?)\b 0:value
# float literals
add-highlighter shared/ocaml/code/ regex \b[0-9][0-9_]*(\.[0-9_]*)?([eE][+-]?[0-9][0-9_]*)? 0:value
add-highlighter shared/ocaml/code/ regex \b0[xX][A-Fa-f0-9][A-Fa-f0-9]*(\.[a-fA-F0-9_]*)?([pP][+-]?[0-9][0-9_]*)? 0:value
# constructors. must be put before any module name highlighter, as a fallback for capitalized identifiers
add-highlighter shared/ocaml/code/ regex \b[A-Z][a-zA-Z0-9_]*\b 0:value
# the module name in a module path, e.g. 'M' in 'M.x'
add-highlighter shared/ocaml/code/ regex (\b[A-Z][a-zA-Z0-9_]*[\h\n]*)(?=\.) 0:module
# (simple) module declarations
add-highlighter shared/ocaml/code/ regex (?<=module)([\h\n]+[A-Z][a-zA-Z0-9_]*) 0:module
# (simple) signature declarations. 'type' is also highlighted, due to the lack of quantifiers in lookarounds.
# Hence we must put keyword highlighters after this to recover proper highlight for 'type'
add-highlighter shared/ocaml/code/ regex (?<=module)([\h\n]+type[\h\n]+[A-Z][a-zA-Z0-9_]*) 0:module
# (simple) open statements
add-highlighter shared/ocaml/code/ regex (?<=open)([\h\n]+[A-Z][a-zA-Z0-9_]*) 0:module
# operators
add-highlighter shared/ocaml/code/ regex [@!$%%^&*\-+=|<>/?]+ 0:operator
# Macro
# ‾‾‾‾‾
evaluate-commands %sh{
keywords="and|as|asr|assert|begin|class|constraint|do|done|downto|else|end|exception|external|false"
keywords="${keywords}|for|fun|function|functor|if|in|include|inherit|initializer|land|lazy|let|lor"
keywords="${keywords}|lsl|lsr|lxor|match|method|mod|module|mutable|new|nonrec|object|of|open|or"
keywords="${keywords}|private|rec|sig|struct|then|to|true|try|type|val|virtual|when|while|with"
printf %s\\n "declare-option str-list ocaml_static_words ${keywords}" | tr '|' ' '
# must be put at last, since we have highlighted some keywords ('type' in 'module type') to other things
printf %s "
add-highlighter shared/ocaml/code/ regex \b(${keywords})\b 0:keyword
"
}
# Conveniences
# ‾‾‾‾‾‾‾‾‾‾‾‾
# C has header and source files and you need to often switch between them.
# Similarly OCaml has .ml (implementation) and .mli (interface files) and
# one often needs to switch between them.
#
# This command provides a simple functionality that allows you to accomplish this.
define-command ocaml-alternative-file -docstring 'Switch between .ml and .mli file or vice versa' %{
evaluate-commands %sh{
if [ "${kak_buffile##*.}" = 'ml' ]; then
printf "edit -- '%s'" "$(printf %s "${kak_buffile}i" | sed "s/'/''/g")"
elif [ "${kak_buffile##*.}" = 'mli' ]; then
printf "edit -- '%s'" "$(printf %s "${kak_buffile%i}" | sed "s/'/''/g")"
fi
}
}
}