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kakoune/rc/filetype/perl.kak
Frank LENORMAND 21614cb06e src: Create a <semicolon> named key
This commit allows using the <semicolon> expansion in commands, instead
of `\;`.

It makes commands look more elegant, and prevents new-comers from
falling into the trap of using <a-;> without escaping the semicolon.
2019-10-22 11:02:06 +02:00

123 lines
7.6 KiB
Plaintext

# https://www.perl.org/
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*\.(t|p[lm])$ %{
set-option buffer filetype perl
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=perl %{
require-module perl
set-option window static_words %opt{perl_static_words}
# cleanup trailing whitespaces when exiting insert mode
hook window ModeChange pop:insert:.* -group perl-trim-indent %{ try %{ execute-keys -draft <a-x>s^\h+$<ret>d } }
hook window InsertChar \n -group perl-indent perl-indent-on-new-line
hook window InsertChar \{ -group perl-indent perl-indent-on-opening-curly-brace
hook window InsertChar \} -group perl-indent perl-indent-on-closing-curly-brace
hook -once -always window WinSetOption filetype=.* %{ remove-hooks window perl-.+ }
}
hook -group perl-highlight global WinSetOption filetype=perl %{
add-highlighter window/perl ref perl
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/perl }
}
provide-module perl %§
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/perl regions
add-highlighter shared/perl/code default-region group
add-highlighter shared/perl/command region (?<!\$)(?<!\\)` (?<!\\)(\\\\)*` fill meta
add-highlighter shared/perl/double_string region (?<!\$)(?<!\\)" (?<!\\)(\\\\)*" fill string
add-highlighter shared/perl/single_string region (?<!\$)(?<!\\\\)' (?<!\\)(\\\\)*' fill string
add-highlighter shared/perl/comment region (?<!\$)(?<!\\)# $ fill comment
evaluate-commands %sh{
# Grammar
keywords="else lock qw elsif lt qx eq exp ne sub for no my not tr goto and foreach or break exit unless cmp ge package until continue gt while if qq xor do le qr return"
attributes="END AUTOLOAD BEGIN CHECK UNITCHECK INIT DESTROY
length setpgrp endgrent link setpriority endhostent listen setprotoent endnetent local setpwent
endprotoent localtime setservent endpwent log setsockopt endservent lstat shift eof map shmctl eval mkdir shmget exec msgctl shmread
exists msgget shmwrite msgrcv shutdown fcntl msgsnd sin fileno sleep flock next socket fork socketpair format oct sort
formline open splice getc opendir split getgrent ord sprintf getgrgid our sqrt getgrnam pack srand gethostbyaddr pipe stat gethostbyname
pop state gethostent pos study getlogin print substr getnetbyaddr printf symlink abs getnetbyname prototype syscall accept getnetent
push sysopen alarm getpeername quotemeta sysread atan2 getpgrp rand sysseek getppid read system getpriority readdir syswrite bind
getprotobyname readline tell binmode getprotobynumber readlink telldir bless getprotoent readpipe tie getpwent recv tied caller
getpwnam redo time chdir getpwuid ref times getservbyname rename truncate chmod getservbyport require uc chomp getservent reset ucfirst
chop getsockname umask chown getsockopt reverse undef chr glob rewinddir chroot gmtime rindex unlink close rmdir unpack
closedir grep say unshift connect hex scalar untie cos index seek use crypt seekdir utime dbmclose int select values dbmopen ioctl semctl
vec defined join semget wait delete keys semop waitpid kill send wantarray die last setgrent warn dump lc sethostent write each lcfirst setnetent"
values="ARGV STDERR STDOUT ARGVOUT STDIN __DATA__ __END__ __FILE__ __LINE__ __PACKAGE__"
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 perl_static_words $(join "${keywords} ${attributes} ${values}" ' ')"
# Highlight keywords
printf %s "
add-highlighter shared/perl/code/ regex \b($(join "${keywords}" '|'))\b 0:keyword
add-highlighter shared/perl/code/ regex \b($(join "${attributes}" '|'))\b 0:attribute
add-highlighter shared/perl/code/ regex \b($(join "${values}" '|'))\b 0:value
"
}
add-highlighter shared/perl/code/ regex (?!\$)-?([0-9]*\.(?!0[xXbB]))?\b([0-9]+|0[xX][0-9a-fA-F]+|0[bb][01_]+)\.?([eE][+-]?[0-9]+)?i?\b 0:value
add-highlighter shared/perl/code/ regex %{\$!|\$"|\$#|\$\$|\$%|\$&|\$'|\$\(|\$\)|\$\*|\$\+|\$,|\$_|\$-|\$`|\$\.|\$/|\$:|\$;|\$<|\$=|\$>|\$\?|\$@|\$\[|\$\\|\$\]|\$\^|\$\||\$~|%!|@\+|@-|@_} 0:value
add-highlighter shared/perl/code/ regex (%ENV|%INC|%OVERLOAD|%SIG|@ARGV|@INC|@LAST_MATCH_START) 0:value
add-highlighter shared/perl/code/ regex %{%\^(H)\b} 0:value
add-highlighter shared/perl/code/ regex \$\^(S|T|V|W|X|A|C|D|E|F|H|I|L|M|N|O|P|R)\b 0:value
add-highlighter shared/perl/code/ regex \$\^(RE_TRIE_MAXBUF|TAINT|UNICODE|UTF8LOCALE|WARNING_BITS|WIDE_SYSTEM_CALLS|CHILD_ERROR_NATIVE|ENCODING|OPEN|RE_DEBUG_FLAGS)\b 0:value
add-highlighter shared/perl/code/ regex \$[0-9]+ 0:attribute
add-highlighter shared/perl/code/ regex \b-(B|b|C|c|d|e|f|g|k|l|M|O|o|p|r|R|S|s|T|t|u|w|W|X|x|z)\b 0:attribute
add-highlighter shared/perl/code/ regex \$[a-zA-Z_][a-zA-Z0-9_]* 0:variable
add-highlighter shared/perl/code/ regex \$(a|b|LAST_REGEXP_CODE_RESULT|LIST_SEPARATOR|MATCH|MULTILINE_MATCHING|NR|OFMT|OFS|ORS|OS_ERROR|OSNAME|OUTPUT_AUTO_FLUSH|OUTPUT_FIELD_SEPARATOR|OUTPUT_RECORD_SEPARATOR)\b 0:value
add-highlighter shared/perl/code/ regex \$(LAST_REGEXP_CODE_RESULT|LIST_SEPARATOR|MATCH|MULTILINE_MATCHING|NR|OFMT|OFS|ORS|OS_ERROR|OSNAME|OUTPUT_AUTO_FLUSH|OUTPUT_FIELD_SEPARATOR|OUTPUT_RECORD_SEPARATOR|PERL_VERSION|ACCUMULATOR|PERLDB|ARG|PID|ARGV|POSTMATCH|PREMATCH|BASETIME|PROCESS_ID|CHILD_ERROR|PROGRAM_NAME|COMPILING|REAL_GROUP_ID|DEBUGGING|REAL_USER_ID|EFFECTIVE_GROUP_ID|RS|EFFECTIVE_USER_ID|SUBSCRIPT_SEPARATOR|EGID|SUBSEP|ERRNO|SYSTEM_FD_MAX|EUID|UID|EVAL_ERROR|WARNING|EXCEPTIONS_BEING_CAUGHT|EXECUTABLE_NAME|EXTENDED_OS_ERROR|FORMAT_FORMFEED|FORMAT_LINE_BREAK_CHARACTERS|FORMAT_LINES_LEFT|FORMAT_LINES_PER_PAGE|FORMAT_NAME|FORMAT_PAGE_NUMBER|FORMAT_TOP_NAME|GID|INPLACE_EDIT|INPUT_LINE_NUMBER|INPUT_RECORD_SEPARATOR|LAST_MATCH_END|LAST_PAREN_MATCH)\b 0:value
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden perl-indent-on-new-line %~
evaluate-commands -draft -itersel %=
# preserve previous line indent
try %{ execute-keys -draft <semicolon>K<a-&> }
# indent after lines ending with { or (
try %[ execute-keys -draft k<a-x> <a-k> [{(]\h*$ <ret> j<a-gt> ]
# cleanup trailing white spaces on the previous line
try %{ execute-keys -draft k<a-x> s \h+$ <ret>d }
# align to opening paren of previous line
try %{ execute-keys -draft [( <a-k> \A\([^\n]+\n[^\n]*\n?\z <ret> s \A\(\h*.|.\z <ret> '<a-;>' & }
# copy // comments prefix
try %{ execute-keys -draft <semicolon><c-s>k<a-x> s ^\h*\K/{2,} <ret> y<c-o>P<esc> }
# indent after a switch's case/default statements
try %[ execute-keys -draft k<a-x> <a-k> ^\h*(case|default).*:$ <ret> j<a-gt> ]
# indent after if|else|while|for
try %[ execute-keys -draft <semicolon><a-F>)MB <a-k> \A(if|else|while|for)\h*\(.*\)\h*\n\h*\n?\z <ret> s \A|.\z <ret> 1<a-&>1<a-space><a-gt> ]
=
~
define-command -hidden perl-indent-on-opening-curly-brace %[
# align indent with opening paren when { is entered on a new line after the closing paren
try %[ execute-keys -draft -itersel h<a-F>)M <a-k> \A\(.*\)\h*\n\h*\{) <ret> s \A|.\z <ret> 1<a-&> ]
]
define-command -hidden perl-indent-on-closing-curly-brace %[
# align to opening curly brace when alone on a line
try %[ execute-keys -itersel -draft <a-h><a-k>^\h+\}$<ret>hms\A|.\z<ret>1<a-&> ]
]
§