kakoune/rc/extra/pony.kak
Maxime Coste ec16969609 Do not reparse %sh{...} strings
Automatic reparsing of %sh{...}, while convenient in many cases,
can be surprising as well, and can lead to security problems:

'echo %sh{ printf "foo\necho bar" }' runs 'echo foo', then 'echo bar'.
we make this danger explicit, and we fix the 'nop %sh{...}' pattern.

To reparse %sh{...} strings, they can be passed to evaluate-commands,
which has been fixed to work in every cases where %sh{...} reparsing
was used..
2018-07-05 07:54:28 +10:00

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# http://ponylang.org
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](pony) %{
set-option buffer filetype pony
}
# Highlighters & Completion
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/ regions -default code pony \
double_string '"""' '"""' '' \
double_string '"' (?<!\\)(\\\\)*" '' \
comment '/\*' '\*/' '' \
comment '//' '$' ''
add-highlighter shared/pony/double_string fill string
# add-highlighter shared/pony/single_string fill string
add-highlighter shared/pony/comment fill comment
evaluate-commands %sh{
# Grammar
values="true|false|None|this"
meta='use'
# Keyword list is collected using `keyword.kwlist` from `keyword`
keywords="and|as|or|break|match|continue|else|try|in|return|end|for|is"
keywords="${keywords}|recover|consume|error|do|then|if|while"
func_decl="new|fun|be|lambda"
capabilities="iso|ref|box|tag|val|trn"
struct="class|actor|interface|trait|primitive|type|var|let|embed"
# Add the language's grammar to the static completion list
static_words="${values}:${meta}:${keywords}:${types_decl}:${capabilities}"
static_words="${static_words}::${struct}"
printf %s\\n "hook global WinSetOption filetype=pony %{
set-option window static_words '${static_words}'
}" | tr '|' ':'
# Highlight keywords
printf %s "
add-highlighter shared/pony/code regex '\b(${values})\b' 0:value
add-highlighter shared/pony/code regex '\b(${meta})\b' 0:meta
add-highlighter shared/pony/code regex '\b(${func_decl})(\s+(${capabilities}))?(\s+\w+)\(' 1:type 3:builtin 4:builtin
add-highlighter shared/pony/code regex '\b(${func_decl})\b' 0:type
add-highlighter shared/pony/code regex '=>' 0:type
add-highlighter shared/pony/code regex '\b(${keywords})\b' 0:keyword
add-highlighter shared/pony/code regex ';' 0:keyword
add-highlighter shared/pony/code regex '^\s*|' 0:keyword
add-highlighter shared/pony/code regex '\b(${struct})\b' 0:variable
add-highlighter shared/pony/code regex '\b(${capabilities})\b(!|^)?' 1:builtin 2:builtin
"
# Highlight types and attributes
printf %s "
add-highlighter shared/pony/code regex '@[\w_]+\b' 0:attribute
"
}
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden pony-indent-on-new-line %{
evaluate-commands -draft -itersel %{
# preserve previous line indent
try %{ execute-keys -draft <space> K <a-&> }
# cleanup trailing whitespaces from previous line
try %{ execute-keys -draft k <a-x> s \h+$ <ret> d }
# copy '//' comment prefix and following white spaces
# try %{ execute-keys -draft k x s ^\h*//\h* <ret> y jgh P }
# indent after line ending with :
try %{ execute-keys -draft <space> k x <a-k> (do|try|then|else|:|=>)$ <ret> j <a-gt> }
# else, end are always de-indented
try %{ execute-keys -draft <space> k x <a-k> (else|end):$ <ret> k x s ^\h* <ret> y j x <a-k> ^<c-r>" <ret> J <a-lt> }
}
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook -group pony-highlight global WinSetOption filetype=pony %{ add-highlighter window ref pony }
hook global WinSetOption filetype=pony %{
hook window InsertChar \n -group pony-indent pony-indent-on-new-line
# cleanup trailing whitespaces on current line insert end
hook window ModeChange insert:.* -group pony-indent %{ try %{ execute-keys -draft \; <a-x> s ^\h+$ <ret> d } }
}
hook -group pony-highlight global WinSetOption filetype=(?!pony).* %{ remove-highlighter pony }
hook global WinSetOption filetype=(?!pony).* %{
remove-hooks window pony-indent
}