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kakoune/rc/base/perl.kak
Maxime Coste 0fa59e5fd2 rc/: Tweak some regexes to be compatible with our impl limitations
The upcoming custom implementation does not support arbitrary lookarounds,
and other advanced regex features. Simplify the regexes to avoid those.
2017-10-25 10:27:39 +08:00

121 lines
7.4 KiB
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# https://www.perl.org/
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*\.p[lm] %{
set buffer filetype perl
}
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter -group / regions -default code perl \
command '(?<!\$)(?<!\\)`' (?<!\\)(\\\\)*` '' \
double_string '(?<!\$)(?<!\\)"' (?<!\\)(\\\\)*" '' \
single_string "(?<!\\$)(?<!\\\\)'" (?<!\\)(\\\\)*' '' \
comment '(?<!\$)(?<!\\)#' $ ''
add-highlighter -group /perl/command fill magenta
add-highlighter -group /perl/double_string fill string
add-highlighter -group /perl/single_string fill string
add-highlighter -group /perl/comment fill comment
%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"
attributes="${attributes}|length|setpgrp|endgrent|link|setpriority|endhostent|listen|setprotoent|endnetent|local|setpwent"
attributes="${attributes}|endprotoent|localtime|setservent|endpwent|log|setsockopt|endservent|lstat|shift|eof|map|shmctl|eval|mkdir|shmget|exec|msgctl|shmread"
attributes="${attributes}|exists|msgget|shmwrite|msgrcv|shutdown|fcntl|msgsnd|sin|fileno|sleep|flock|next|socket|fork|socketpair|format|oct|sort"
attributes="${attributes}|formline|open|splice|getc|opendir|split|getgrent|ord|sprintf|getgrgid|our|sqrt|getgrnam|pack|srand|gethostbyaddr|pipe|stat|gethostbyname"
attributes="${attributes}|pop|state|gethostent|pos|study|getlogin|print|substr|getnetbyaddr|printf|symlink|abs|getnetbyname|prototype|syscall|accept|getnetent"
attributes="${attributes}|push|sysopen|alarm|getpeername|quotemeta|sysread|atan2|getpgrp|rand|sysseek|getppid|read|system|getpriority|readdir|syswrite|bind"
attributes="${attributes}|getprotobyname|readline|tell|binmode|getprotobynumber|readlink|telldir|bless|getprotoent|readpipe|tie|getpwent|recv|tied|caller"
attributes="${attributes}|getpwnam|redo|time|chdir|getpwuid|ref|times|getservbyname|rename|truncate|chmod|getservbyport|require|uc|chomp|getservent|reset|ucfirst"
attributes="${attributes}|chop|getsockname|umask|chown|getsockopt|reverse|undef|chr|glob|rewinddir|chroot|gmtime|rindex|unlink|close|rmdir|unpack"
attributes="${attributes}|closedir|grep|say|unshift|connect|hex|scalar|untie|cos|index|seek|use|crypt|seekdir|utime|dbmclose|int|select|values|dbmopen|ioctl|semctl"
attributes="${attributes}|vec|defined|join|semget|wait|delete|keys|semop|waitpid|kill|send|wantarray|die|last|setgrent|warn|dump|lc|sethostent|write|each|lcfirst|setnetent"
values="ARGV|STDERR|STDOUT|ARGVOUT|STDIN|__DATA__|__END__|__FILE__|__LINE__|__PACKAGE__"
# Add the language's grammar to the static completion list
printf %s\\n "hook global WinSetOption filetype=perl %{
set window static_words '${keywords}:${attributes}:${values}'
}" | sed 's,|,:,g'
# Highlight keywords
printf %s "
add-highlighter -group /perl/code regex \b(${keywords})\b 0:keyword
add-highlighter -group /perl/code regex \b(${attributes})\b 0:attribute
add-highlighter -group /perl/code regex \b(${values})\b 0:value
"
}
add-highlighter -group /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 -group /perl/code regex %{\$!|\$"|\$#|\$\$|\$%|\$&|\$'|\$\(|\$\)|\$\*|\$\+|\$,|\$_|\$-|\$`|\$\.|\$/|\$:|\$;|\$<|\$=|\$>|\$\?|\$@|\$\[|\$\\|\$\]|\$\^|\$\||\$~|%!|@\+|@-|@_} 0:value
add-highlighter -group /perl/code regex (%ENV|%INC|%OVERLOAD|%SIG|@ARGV|@INC|@LAST_MATCH_START) 0:value
add-highlighter -group /perl/code regex %{%\^(H)\b} 0:value
add-highlighter -group /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 -group /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 -group /perl/code regex \$[0-9]+ 0:attribute
add-highlighter -group /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 -group /perl/code regex \$[a-zA-Z_][a-zA-Z0-9_]* 0:variable
add-highlighter -group /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 -group /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
# ‾‾‾‾‾‾‾‾
def -hidden perl-indent-on-new-line %~
eval -draft -itersel %=
# preserve previous line indent
try %{ exec -draft \;K<a-&> }
# indent after lines ending with { or (
try %[ exec -draft k<a-x> <a-k> [{(]\h*$ <ret> j<a-gt> ]
# cleanup trailing white spaces on the previous line
try %{ exec -draft k<a-x> s \h+$ <ret>d }
# align to opening paren of previous line
try %{ exec -draft [( <a-k> \A\([^\n]+\n[^\n]*\n?\z <ret> s \A\(\h*.|.\z <ret> '<a-;>' & }
# copy // comments prefix
try %{ exec -draft \;<c-s>k<a-x> s ^\h*\K/{2,} <ret> y<c-o><c-o>P<esc> }
# indent after a switch's case/default statements
try %[ exec -draft k<a-x> <a-k> ^\h*(case|default).*:$ <ret> j<a-gt> ]
# indent after if|else|while|for
try %[ exec -draft \;<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> ]
=
~
def -hidden perl-indent-on-opening-curly-brace %[
# align indent with opening paren when { is entered on a new line after the closing paren
try %[ exec -draft -itersel h<a-F>)M <a-k> \A\(.*\)\h*\n\h*\{\' <ret> s \A|.\z <ret> 1<a-&> ]
]
def -hidden perl-indent-on-closing-curly-brace %[
# align to opening curly brace when alone on a line
try %[ exec -itersel -draft <a-h><a-k>^\h+\}$<ret>hms\A|.\z<ret>1<a-&> ]
]
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook -group perl-highlight global WinSetOption filetype=perl %{ add-highlighter ref perl }
hook global WinSetOption filetype=perl %{
# cleanup trailing whitespaces when exiting insert mode
hook window InsertEnd .* -group perl-hooks %{ try %{ exec -draft <a-x>s^\h+$<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 -group perl-highlight global WinSetOption filetype=(?!perl).* %{ remove-highlighter perl }
hook global WinSetOption filetype=(?!perl).* %{
remove-hooks window perl-hooks
remove-hooks window perl-indent
}