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0fa59e5fd2
The upcoming custom implementation does not support arbitrary lookarounds, and other advanced regex features. Simplify the regexes to avoid those.
121 lines
7.4 KiB
Plaintext
121 lines
7.4 KiB
Plaintext
# https://www.perl.org/
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*\.p[lm] %{
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set buffer filetype perl
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}
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter -group / regions -default code perl \
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command '(?<!\$)(?<!\\)`' (?<!\\)(\\\\)*` '' \
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double_string '(?<!\$)(?<!\\)"' (?<!\\)(\\\\)*" '' \
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single_string "(?<!\\$)(?<!\\\\)'" (?<!\\)(\\\\)*' '' \
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comment '(?<!\$)(?<!\\)#' $ ''
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add-highlighter -group /perl/command fill magenta
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add-highlighter -group /perl/double_string fill string
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add-highlighter -group /perl/single_string fill string
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add-highlighter -group /perl/comment fill comment
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%sh{
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# Grammar
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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"
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attributes="END|AUTOLOAD|BEGIN|CHECK|UNITCHECK|INIT|DESTROY"
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attributes="${attributes}|length|setpgrp|endgrent|link|setpriority|endhostent|listen|setprotoent|endnetent|local|setpwent"
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attributes="${attributes}|endprotoent|localtime|setservent|endpwent|log|setsockopt|endservent|lstat|shift|eof|map|shmctl|eval|mkdir|shmget|exec|msgctl|shmread"
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attributes="${attributes}|exists|msgget|shmwrite|msgrcv|shutdown|fcntl|msgsnd|sin|fileno|sleep|flock|next|socket|fork|socketpair|format|oct|sort"
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attributes="${attributes}|formline|open|splice|getc|opendir|split|getgrent|ord|sprintf|getgrgid|our|sqrt|getgrnam|pack|srand|gethostbyaddr|pipe|stat|gethostbyname"
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attributes="${attributes}|pop|state|gethostent|pos|study|getlogin|print|substr|getnetbyaddr|printf|symlink|abs|getnetbyname|prototype|syscall|accept|getnetent"
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attributes="${attributes}|push|sysopen|alarm|getpeername|quotemeta|sysread|atan2|getpgrp|rand|sysseek|getppid|read|system|getpriority|readdir|syswrite|bind"
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attributes="${attributes}|getprotobyname|readline|tell|binmode|getprotobynumber|readlink|telldir|bless|getprotoent|readpipe|tie|getpwent|recv|tied|caller"
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attributes="${attributes}|getpwnam|redo|time|chdir|getpwuid|ref|times|getservbyname|rename|truncate|chmod|getservbyport|require|uc|chomp|getservent|reset|ucfirst"
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attributes="${attributes}|chop|getsockname|umask|chown|getsockopt|reverse|undef|chr|glob|rewinddir|chroot|gmtime|rindex|unlink|close|rmdir|unpack"
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attributes="${attributes}|closedir|grep|say|unshift|connect|hex|scalar|untie|cos|index|seek|use|crypt|seekdir|utime|dbmclose|int|select|values|dbmopen|ioctl|semctl"
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attributes="${attributes}|vec|defined|join|semget|wait|delete|keys|semop|waitpid|kill|send|wantarray|die|last|setgrent|warn|dump|lc|sethostent|write|each|lcfirst|setnetent"
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values="ARGV|STDERR|STDOUT|ARGVOUT|STDIN|__DATA__|__END__|__FILE__|__LINE__|__PACKAGE__"
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# Add the language's grammar to the static completion list
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printf %s\\n "hook global WinSetOption filetype=perl %{
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set window static_words '${keywords}:${attributes}:${values}'
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}" | sed 's,|,:,g'
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# Highlight keywords
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printf %s "
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add-highlighter -group /perl/code regex \b(${keywords})\b 0:keyword
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add-highlighter -group /perl/code regex \b(${attributes})\b 0:attribute
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add-highlighter -group /perl/code regex \b(${values})\b 0:value
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"
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}
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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
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add-highlighter -group /perl/code regex %{\$!|\$"|\$#|\$\$|\$%|\$&|\$'|\$\(|\$\)|\$\*|\$\+|\$,|\$_|\$-|\$`|\$\.|\$/|\$:|\$;|\$<|\$=|\$>|\$\?|\$@|\$\[|\$\\|\$\]|\$\^|\$\||\$~|%!|@\+|@-|@_} 0:value
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add-highlighter -group /perl/code regex (%ENV|%INC|%OVERLOAD|%SIG|@ARGV|@INC|@LAST_MATCH_START) 0:value
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add-highlighter -group /perl/code regex %{%\^(H)\b} 0:value
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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
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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
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add-highlighter -group /perl/code regex \$[0-9]+ 0:attribute
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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
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add-highlighter -group /perl/code regex \$[a-zA-Z_][a-zA-Z0-9_]* 0:variable
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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
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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
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# Commands
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# ‾‾‾‾‾‾‾‾
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def -hidden perl-indent-on-new-line %~
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eval -draft -itersel %=
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# preserve previous line indent
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try %{ exec -draft \;K<a-&> }
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# indent after lines ending with { or (
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try %[ exec -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 %{ exec -draft k<a-x> s \h+$ <ret>d }
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# align to opening paren of previous line
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try %{ exec -draft [( <a-k> \A\([^\n]+\n[^\n]*\n?\z <ret> s \A\(\h*.|.\z <ret> '<a-;>' & }
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# copy // comments prefix
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try %{ exec -draft \;<c-s>k<a-x> s ^\h*\K/{2,} <ret> y<c-o><c-o>P<esc> }
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# indent after a switch's case/default statements
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try %[ exec -draft k<a-x> <a-k> ^\h*(case|default).*:$ <ret> j<a-gt> ]
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# indent after if|else|while|for
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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> ]
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=
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~
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def -hidden perl-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 %[ exec -draft -itersel h<a-F>)M <a-k> \A\(.*\)\h*\n\h*\{\' <ret> s \A|.\z <ret> 1<a-&> ]
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]
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def -hidden perl-indent-on-closing-curly-brace %[
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# align to opening curly brace when alone on a line
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try %[ exec -itersel -draft <a-h><a-k>^\h+\}$<ret>hms\A|.\z<ret>1<a-&> ]
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]
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook -group perl-highlight global WinSetOption filetype=perl %{ add-highlighter ref perl }
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hook global WinSetOption filetype=perl %{
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# cleanup trailing whitespaces when exiting insert mode
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hook window InsertEnd .* -group perl-hooks %{ try %{ exec -draft <a-x>s^\h+$<ret>d } }
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hook window InsertChar \n -group perl-indent perl-indent-on-new-line
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hook window InsertChar \{ -group perl-indent perl-indent-on-opening-curly-brace
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hook window InsertChar \} -group perl-indent perl-indent-on-closing-curly-brace
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}
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hook -group perl-highlight global WinSetOption filetype=(?!perl).* %{ remove-highlighter perl }
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hook global WinSetOption filetype=(?!perl).* %{
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remove-hooks window perl-hooks
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remove-hooks window perl-indent
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}
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