130 lines
5.7 KiB
Plaintext
130 lines
5.7 KiB
Plaintext
hook global BufCreate .*\.java %{
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set-option buffer filetype java
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}
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook global WinSetOption filetype=java %{
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require-module java
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set-option window static_words %opt{java_static_words}
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# cleanup trailing whitespaces when exiting insert mode
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hook window ModeChange pop:insert:.* -group java-trim-indent %{ try %{ execute-keys -draft <a-x>s^\h+$<ret>d } }
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hook window InsertChar \n -group java-insert java-insert-on-new-line
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hook window InsertChar \n -group java-indent java-indent-on-new-line
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hook window InsertChar \{ -group java-indent java-indent-on-opening-curly-brace
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hook window InsertChar \} -group java-indent java-indent-on-closing-curly-brace
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hook -once -always window WinSetOption filetype=.* %{ remove-hooks window java-.+ }
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}
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hook -group java-highlight global WinSetOption filetype=java %{
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add-highlighter window/java ref java
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/java }
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}
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provide-module java %§
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add-highlighter shared/java regions
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add-highlighter shared/java/code default-region group
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add-highlighter shared/java/string region %{(?<!')"} %{(?<!\\)(\\\\)*"} fill string
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add-highlighter shared/java/character region %{'} %{(?<!\\)'} fill value
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add-highlighter shared/java/comment region /\* \*/ fill comment
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add-highlighter shared/java/inline_documentation region /// $ fill documentation
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add-highlighter shared/java/line_comment region // $ fill comment
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add-highlighter shared/java/code/ regex "(?<!\w)@\w+\b" 0:meta
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# Commands
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# ‾‾‾‾‾‾‾‾
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define-command -hidden java-insert-on-new-line %[
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# copy // comments prefix and following white spaces
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try %{ execute-keys -draft <semicolon><c-s>k<a-x> s ^\h*\K/{2,}\h* <ret> y<c-o>P<esc> }
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]
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define-command -hidden java-indent-on-new-line %~
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evaluate-commands -draft -itersel %=
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# preserve previous line indent
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try %{ execute-keys -draft <semicolon>K<a-&> }
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# indent after lines ending with { or (
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try %[ execute-keys -draft k<a-x> <a-k> [{(]\h*$ <ret> j<a-gt> ]
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# cleanup trailing white spaces on the previous line
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try %{ execute-keys -draft k<a-x> s \h+$ <ret>d }
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# align to opening paren of previous line
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try %{ execute-keys -draft [( <a-k> \A\([^\n]+\n[^\n]*\n?\z <ret> s \A\(\h*.|.\z <ret> '<a-;>' & }
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# indent after a switch's case/default statements
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try %[ execute-keys -draft k<a-x> <a-k> ^\h*(case|default).*:$ <ret> j<a-gt> ]
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# indent after keywords
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try %[ execute-keys -draft <semicolon><a-F>)MB <a-k> \A(if|else|while|for|try|catch)\h*\(.*\)\h*\n\h*\n?\z <ret> s \A|.\z <ret> 1<a-&>1<a-space><a-gt> ]
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# deindent closing brace(s) when after cursor
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try %[ execute-keys -draft <a-x> <a-k> ^\h*[})] <ret> gh / [})] <ret> m <a-S> 1<a-&> ]
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=
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~
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define-command -hidden java-indent-on-opening-curly-brace %[
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# align indent with opening paren when { is entered on a new line after the closing paren
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try %[ execute-keys -draft -itersel h<a-F>)M <a-k> \A\(.*\)\h*\n\h*\{\z <ret> s \A|.\z <ret> 1<a-&> ]
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]
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define-command -hidden java-indent-on-closing-curly-brace %[
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# align to opening curly brace when alone on a line
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try %[ execute-keys -itersel -draft <a-h><a-k>^\h+\}$<ret>hms\A|.\z<ret>1<a-&> ]
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]
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# Shell
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# ‾‾‾‾‾
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# Oracle 2021, 3.9 Keywords, Chapter 3. Lexical Structure, Java Language Specification, Java SE 17, viewed 25 September 2021, <https://docs.oracle.com/javase/specs/jls/se17/html/jls-3.html#jls-3.9>
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#
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evaluate-commands %sh{
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values='false null this true'
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types='boolean byte char double float int long short unsigned void'
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keywords='assert break case catch class continue default do else enum extends
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finally for if implements import instanceof interface new package return
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static strictfp super switch throw throws try var while yield'
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attributes='abstract final native non-sealed permits private protected public
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record sealed synchronized transient volatile'
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modules='exports module open opens provides requires to transitive uses with'
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# ---------------------------------------------------------------------------------------------- #
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join() { sep=$2; eval set -- $1; IFS="$sep"; echo "$*"; }
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# ---------------------------------------------------------------------------------------------- #
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add_highlighter() { printf "add-highlighter shared/java/code/ regex %s %s\n" "$1" "$2"; }
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# ---------------------------------------------------------------------------------------------- #
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add_word_highlighter() {
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while [ $# -gt 0 ]; do
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words=$1 face=$2; shift 2
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regex="\\b($(join "${words}" '|'))\\b"
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add_highlighter "$regex" "1:$face"
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done
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}
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# highlight: open<space> not open()
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add_module_highlighter() {
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while [ $# -gt 0 ]; do
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words=$1 face=$2; shift 2
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regex="\\b($(join "${words}" '|'))\\b(?=\\s)"
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add_highlighter "$regex" "1:$face"
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done
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}
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# ---------------------------------------------------------------------------------------------- #
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printf %s\\n "declare-option str-list java_static_words $(join "${values} ${types} ${keywords} ${attributes} ${modules}" ' ')"
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# ---------------------------------------------------------------------------------------------- #
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add_word_highlighter "$values" "value" "$types" "type" "$keywords" "keyword" "$attributes" "attribute"
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# ---------------------------------------------------------------------------------------------- #
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add_module_highlighter "$modules" "module"
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# ---------------------------------------------------------------------------------------------- #
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}
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§
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