diff -r 48d210e41c65 -r 54c5cfbb1e29 eric6/ThirdParty/Pygments/pygments/lexers/perl.py
--- a/eric6/ThirdParty/Pygments/pygments/lexers/perl.py Thu Jan 14 18:06:56 2021 +0100
+++ b/eric6/ThirdParty/Pygments/pygments/lexers/perl.py Thu Jan 14 18:14:15 2021 +0100
@@ -1,718 +1,732 @@
-# -*- coding: utf-8 -*-
-"""
- pygments.lexers.perl
- ~~~~~~~~~~~~~~~~~~~~
-
- Lexers for Perl, Raku and related languages.
-
- :copyright: Copyright 2006-2020 by the Pygments team, see AUTHORS.
- :license: BSD, see LICENSE for details.
-"""
-
-import re
-
-from pygments.lexer import RegexLexer, ExtendedRegexLexer, include, bygroups, \
- using, this, default, words
-from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
- Number, Punctuation
-from pygments.util import shebang_matches
-
-__all__ = ['PerlLexer', 'Perl6Lexer']
-
-
-class PerlLexer(RegexLexer):
- """
- For `Perl <https://www.perl.org>`_ source code.
- """
-
- name = 'Perl'
- aliases = ['perl', 'pl']
- filenames = ['*.pl', '*.pm', '*.t', '*.perl']
- mimetypes = ['text/x-perl', 'application/x-perl']
-
- flags = re.DOTALL | re.MULTILINE
- # TODO: give this to a perl guy who knows how to parse perl...
- tokens = {
- 'balanced-regex': [
- (r'/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*', String.Regex, '#pop'),
- (r'!(\\\\|\\[^\\]|[^\\!])*![egimosx]*', String.Regex, '#pop'),
- (r'\\(\\\\|[^\\])*\\[egimosx]*', String.Regex, '#pop'),
- (r'\{(\\\\|\\[^\\]|[^\\}])*\}[egimosx]*', String.Regex, '#pop'),
- (r'<(\\\\|\\[^\\]|[^\\>])*>[egimosx]*', String.Regex, '#pop'),
- (r'\[(\\\\|\\[^\\]|[^\\\]])*\][egimosx]*', String.Regex, '#pop'),
- (r'\((\\\\|\\[^\\]|[^\\)])*\)[egimosx]*', String.Regex, '#pop'),
- (r'@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*', String.Regex, '#pop'),
- (r'%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*', String.Regex, '#pop'),
- (r'\$(\\\\|\\[^\\]|[^\\$])*\$[egimosx]*', String.Regex, '#pop'),
- ],
- 'root': [
- (r'\A\#!.+?$', Comment.Hashbang),
- (r'\#.*?$', Comment.Single),
- (r'^=[a-zA-Z0-9]+\s+.*?\n=cut', Comment.Multiline),
- (words((
- 'case', 'continue', 'do', 'else', 'elsif', 'for', 'foreach',
- 'if', 'last', 'my', 'next', 'our', 'redo', 'reset', 'then',
- 'unless', 'until', 'while', 'print', 'new', 'BEGIN',
- 'CHECK', 'INIT', 'END', 'return'), suffix=r'\b'),
- Keyword),
- (r'(format)(\s+)(\w+)(\s*)(=)(\s*\n)',
- bygroups(Keyword, Text, Name, Text, Punctuation, Text), 'format'),
- (r'(eq|lt|gt|le|ge|ne|not|and|or|cmp)\b', Operator.Word),
- # common delimiters
- (r's/(\\\\|\\[^\\]|[^\\/])*/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*',
- String.Regex),
- (r's!(\\\\|\\!|[^!])*!(\\\\|\\!|[^!])*![egimosx]*', String.Regex),
- (r's\\(\\\\|[^\\])*\\(\\\\|[^\\])*\\[egimosx]*', String.Regex),
- (r's@(\\\\|\\[^\\]|[^\\@])*@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*',
- String.Regex),
- (r's%(\\\\|\\[^\\]|[^\\%])*%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*',
- String.Regex),
- # balanced delimiters
- (r's\{(\\\\|\\[^\\]|[^\\}])*\}\s*', String.Regex, 'balanced-regex'),
- (r's<(\\\\|\\[^\\]|[^\\>])*>\s*', String.Regex, 'balanced-regex'),
- (r's\[(\\\\|\\[^\\]|[^\\\]])*\]\s*', String.Regex,
- 'balanced-regex'),
- (r's\((\\\\|\\[^\\]|[^\\)])*\)\s*', String.Regex,
- 'balanced-regex'),
-
- (r'm?/(\\\\|\\[^\\]|[^\\/\n])*/[gcimosx]*', String.Regex),
- (r'm(?=[/!\\{<\[(@%$])', String.Regex, 'balanced-regex'),
- (r'((?<==~)|(?<=\())\s*/(\\\\|\\[^\\]|[^\\/])*/[gcimosx]*',
- String.Regex),
- (r'\s+', Text),
- (words((
- 'abs', 'accept', 'alarm', 'atan2', 'bind', 'binmode', 'bless', 'caller', 'chdir',
- 'chmod', 'chomp', 'chop', 'chown', 'chr', 'chroot', 'close', 'closedir', 'connect',
- 'continue', 'cos', 'crypt', 'dbmclose', 'dbmopen', 'defined', 'delete', 'die',
- 'dump', 'each', 'endgrent', 'endhostent', 'endnetent', 'endprotoent',
- 'endpwent', 'endservent', 'eof', 'eval', 'exec', 'exists', 'exit', 'exp', 'fcntl',
- 'fileno', 'flock', 'fork', 'format', 'formline', 'getc', 'getgrent', 'getgrgid',
- 'getgrnam', 'gethostbyaddr', 'gethostbyname', 'gethostent', 'getlogin',
- 'getnetbyaddr', 'getnetbyname', 'getnetent', 'getpeername', 'getpgrp',
- 'getppid', 'getpriority', 'getprotobyname', 'getprotobynumber',
- 'getprotoent', 'getpwent', 'getpwnam', 'getpwuid', 'getservbyname',
- 'getservbyport', 'getservent', 'getsockname', 'getsockopt', 'glob', 'gmtime',
- 'goto', 'grep', 'hex', 'import', 'index', 'int', 'ioctl', 'join', 'keys', 'kill', 'last',
- 'lc', 'lcfirst', 'length', 'link', 'listen', 'local', 'localtime', 'log', 'lstat',
- 'map', 'mkdir', 'msgctl', 'msgget', 'msgrcv', 'msgsnd', 'my', 'next', 'oct', 'open',
- 'opendir', 'ord', 'our', 'pack', 'pipe', 'pop', 'pos', 'printf',
- 'prototype', 'push', 'quotemeta', 'rand', 'read', 'readdir',
- 'readline', 'readlink', 'readpipe', 'recv', 'redo', 'ref', 'rename',
- 'reverse', 'rewinddir', 'rindex', 'rmdir', 'scalar', 'seek', 'seekdir',
- 'select', 'semctl', 'semget', 'semop', 'send', 'setgrent', 'sethostent', 'setnetent',
- 'setpgrp', 'setpriority', 'setprotoent', 'setpwent', 'setservent',
- 'setsockopt', 'shift', 'shmctl', 'shmget', 'shmread', 'shmwrite', 'shutdown',
- 'sin', 'sleep', 'socket', 'socketpair', 'sort', 'splice', 'split', 'sprintf', 'sqrt',
- 'srand', 'stat', 'study', 'substr', 'symlink', 'syscall', 'sysopen', 'sysread',
- 'sysseek', 'system', 'syswrite', 'tell', 'telldir', 'tie', 'tied', 'time', 'times', 'tr',
- 'truncate', 'uc', 'ucfirst', 'umask', 'undef', 'unlink', 'unpack', 'unshift', 'untie',
- 'utime', 'values', 'vec', 'wait', 'waitpid', 'wantarray', 'warn', 'write'), suffix=r'\b'),
- Name.Builtin),
- (r'((__(DATA|DIE|WARN)__)|(STD(IN|OUT|ERR)))\b', Name.Builtin.Pseudo),
- (r'(<<)([\'"]?)([a-zA-Z_]\w*)(\2;?\n.*?\n)(\3)(\n)',
- bygroups(String, String, String.Delimiter, String, String.Delimiter, Text)),
- (r'__END__', Comment.Preproc, 'end-part'),
- (r'\$\^[ADEFHILMOPSTWX]', Name.Variable.Global),
- (r"\$[\\\"\[\]'&`+*.,;=%~?@$!<>(^|/-](?!\w)", Name.Variable.Global),
- (r'[$@%#]+', Name.Variable, 'varname'),
- (r'0_?[0-7]+(_[0-7]+)*', Number.Oct),
- (r'0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*', Number.Hex),
- (r'0b[01]+(_[01]+)*', Number.Bin),
- (r'(?i)(\d*(_\d*)*\.\d+(_\d*)*|\d+(_\d*)*\.\d+(_\d*)*)(e[+-]?\d+)?',
- Number.Float),
- (r'(?i)\d+(_\d*)*e[+-]?\d+(_\d*)*', Number.Float),
- (r'\d+(_\d+)*', Number.Integer),
- (r"'(\\\\|\\[^\\]|[^'\\])*'", String),
- (r'"(\\\\|\\[^\\]|[^"\\])*"', String),
- (r'`(\\\\|\\[^\\]|[^`\\])*`', String.Backtick),
- (r'<([^\s>]+)>', String.Regex),
- (r'(q|qq|qw|qr|qx)\{', String.Other, 'cb-string'),
- (r'(q|qq|qw|qr|qx)\(', String.Other, 'rb-string'),
- (r'(q|qq|qw|qr|qx)\[', String.Other, 'sb-string'),
- (r'(q|qq|qw|qr|qx)\<', String.Other, 'lt-string'),
- (r'(q|qq|qw|qr|qx)([\W_])(.|\n)*?\2', String.Other),
- (r'(package)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)',
- bygroups(Keyword, Text, Name.Namespace)),
- (r'(use|require|no)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)',
- bygroups(Keyword, Text, Name.Namespace)),
- (r'(sub)(\s+)', bygroups(Keyword, Text), 'funcname'),
- (words((
- 'no', 'package', 'require', 'use'), suffix=r'\b'),
- Keyword),
- (r'(\[\]|\*\*|::|<<|>>|>=|<=>|<=|={3}|!=|=~|'
- r'!~|&&?|\|\||\.{1,3})', Operator),
- (r'[-+/*%=<>&^|!\\~]=?', Operator),
- (r'[()\[\]:;,<>/?{}]', Punctuation), # yes, there's no shortage
- # of punctuation in Perl!
- (r'(?=\w)', Name, 'name'),
- ],
- 'format': [
- (r'\.\n', String.Interpol, '#pop'),
- (r'[^\n]*\n', String.Interpol),
- ],
- 'varname': [
- (r'\s+', Text),
- (r'\{', Punctuation, '#pop'), # hash syntax?
- (r'\)|,', Punctuation, '#pop'), # argument specifier
- (r'\w+::', Name.Namespace),
- (r'[\w:]+', Name.Variable, '#pop'),
- ],
- 'name': [
- (r'[a-zA-Z_]\w*(::[a-zA-Z_]\w*)*(::)?(?=\s*->)', Name.Namespace, '#pop'),
- (r'[a-zA-Z_]\w*(::[a-zA-Z_]\w*)*::', Name.Namespace, '#pop'),
- (r'[\w:]+', Name, '#pop'),
- (r'[A-Z_]+(?=\W)', Name.Constant, '#pop'),
- (r'(?=\W)', Text, '#pop'),
- ],
- 'funcname': [
- (r'[a-zA-Z_]\w*[!?]?', Name.Function),
- (r'\s+', Text),
- # argument declaration
- (r'(\([$@%]*\))(\s*)', bygroups(Punctuation, Text)),
- (r';', Punctuation, '#pop'),
- (r'.*?\{', Punctuation, '#pop'),
- ],
- 'cb-string': [
- (r'\\[{}\\]', String.Other),
- (r'\\', String.Other),
- (r'\{', String.Other, 'cb-string'),
- (r'\}', String.Other, '#pop'),
- (r'[^{}\\]+', String.Other)
- ],
- 'rb-string': [
- (r'\\[()\\]', String.Other),
- (r'\\', String.Other),
- (r'\(', String.Other, 'rb-string'),
- (r'\)', String.Other, '#pop'),
- (r'[^()]+', String.Other)
- ],
- 'sb-string': [
- (r'\\[\[\]\\]', String.Other),
- (r'\\', String.Other),
- (r'\[', String.Other, 'sb-string'),
- (r'\]', String.Other, '#pop'),
- (r'[^\[\]]+', String.Other)
- ],
- 'lt-string': [
- (r'\\[<>\\]', String.Other),
- (r'\\', String.Other),
- (r'\<', String.Other, 'lt-string'),
- (r'\>', String.Other, '#pop'),
- (r'[^<>]+', String.Other)
- ],
- 'end-part': [
- (r'.+', Comment.Preproc, '#pop')
- ]
- }
-
- def analyse_text(text):
- if shebang_matches(text, r'perl'):
- return True
- if re.search(r'(?:my|our)\s+[$@%(]', text):
- return 0.9
-
-
-class Perl6Lexer(ExtendedRegexLexer):
- """
- For `Raku <https://www.raku.org>`_ (a.k.a. Perl 6) source code.
-
- .. versionadded:: 2.0
- """
-
- name = 'Perl6'
- aliases = ['perl6', 'pl6', 'raku']
- filenames = ['*.pl', '*.pm', '*.nqp', '*.p6', '*.6pl', '*.p6l', '*.pl6',
- '*.6pm', '*.p6m', '*.pm6', '*.t', '*.raku', '*.rakumod',
- '*.rakutest', '*.rakudoc']
- mimetypes = ['text/x-perl6', 'application/x-perl6']
- flags = re.MULTILINE | re.DOTALL | re.UNICODE
-
- PERL6_IDENTIFIER_RANGE = r"['\w:-]"
-
- PERL6_KEYWORDS = (
- #Phasers
- 'BEGIN','CATCH','CHECK','CLOSE','CONTROL','DOC','END','ENTER','FIRST',
- 'INIT','KEEP','LAST','LEAVE','NEXT','POST','PRE','QUIT','UNDO',
- #Keywords
- 'anon','augment','but','class','constant','default','does','else',
- 'elsif','enum','for','gather','given','grammar','has','if','import',
- 'is','let','loop','made','make','method','module','multi','my','need',
- 'orwith','our','proceed','proto','repeat','require','return',
- 'return-rw','returns','role','rule','state','sub','submethod','subset',
- 'succeed','supersede','token','try','unit','unless','until','use',
- 'when','while','with','without',
- #Traits
- 'export','native','repr','required','rw','symbol',
- )
-
- PERL6_BUILTINS = (
- 'ACCEPTS','abs','abs2rel','absolute','accept','accessed','acos',
- 'acosec','acosech','acosh','acotan','acotanh','acquire','act','action',
- 'actions','add','add_attribute','add_enum_value','add_fallback',
- 'add_method','add_parent','add_private_method','add_role','add_trustee',
- 'adverb','after','all','allocate','allof','allowed','alternative-names',
- 'annotations','antipair','antipairs','any','anyof','app_lifetime',
- 'append','arch','archname','args','arity','Array','asec','asech','asin',
- 'asinh','ASSIGN-KEY','ASSIGN-POS','assuming','ast','at','atan','atan2',
- 'atanh','AT-KEY','atomic-assign','atomic-dec-fetch','atomic-fetch',
- 'atomic-fetch-add','atomic-fetch-dec','atomic-fetch-inc',
- 'atomic-fetch-sub','atomic-inc-fetch','AT-POS','attributes','auth',
- 'await','backtrace','Bag','BagHash','bail-out','base','basename',
- 'base-repeating','batch','BIND-KEY','BIND-POS','bind-stderr',
- 'bind-stdin','bind-stdout','bind-udp','bits','bless','block','Bool',
- 'bool-only','bounds','break','Bridge','broken','BUILD','build-date',
- 'bytes','cache','callframe','calling-package','CALL-ME','callsame',
- 'callwith','can','cancel','candidates','cando','can-ok','canonpath',
- 'caps','caption','Capture','cas','catdir','categorize','categorize-list',
- 'catfile','catpath','cause','ceiling','cglobal','changed','Channel',
- 'chars','chdir','child','child-name','child-typename','chmod','chomp',
- 'chop','chr','chrs','chunks','cis','classify','classify-list','cleanup',
- 'clone','close','closed','close-stdin','cmp-ok','code','codes','collate',
- 'column','comb','combinations','command','comment','compiler','Complex',
- 'compose','compose_type','composer','condition','config',
- 'configure_destroy','configure_type_checking','conj','connect',
- 'constraints','construct','contains','contents','copy','cos','cosec',
- 'cosech','cosh','cotan','cotanh','count','count-only','cpu-cores',
- 'cpu-usage','CREATE','create_type','cross','cue','curdir','curupdir','d',
- 'Date','DateTime','day','daycount','day-of-month','day-of-week',
- 'day-of-year','days-in-month','declaration','decode','decoder','deepmap',
- 'default','defined','DEFINITE','delayed','DELETE-KEY','DELETE-POS',
- 'denominator','desc','DESTROY','destroyers','devnull','diag',
- 'did-you-mean','die','dies-ok','dir','dirname','dir-sep','DISTROnames',
- 'do','does','does-ok','done','done-testing','duckmap','dynamic','e',
- 'eager','earlier','elems','emit','enclosing','encode','encoder',
- 'encoding','end','ends-with','enum_from_value','enum_value_list',
- 'enum_values','enums','eof','EVAL','eval-dies-ok','EVALFILE',
- 'eval-lives-ok','exception','excludes-max','excludes-min','EXISTS-KEY',
- 'EXISTS-POS','exit','exitcode','exp','expected','explicitly-manage',
- 'expmod','extension','f','fail','fails-like','fc','feature','file',
- 'filename','find_method','find_method_qualified','finish','first','flat',
- 'flatmap','flip','floor','flunk','flush','fmt','format','formatter',
- 'freeze','from','from-list','from-loop','from-posix','full',
- 'full-barrier','get','get_value','getc','gist','got','grab','grabpairs',
- 'grep','handle','handled','handles','hardware','has_accessor','Hash',
- 'head','headers','hh-mm-ss','hidden','hides','hour','how','hyper','id',
- 'illegal','im','in','indent','index','indices','indir','infinite',
- 'infix','infix:<+>','infix:<->','install_method_cache','Instant',
- 'instead','Int','int-bounds','interval','in-timezone','invalid-str',
- 'invert','invocant','IO','IO::Notification.watch-path','is_trusted',
- 'is_type','isa','is-absolute','isa-ok','is-approx','is-deeply',
- 'is-hidden','is-initial-thread','is-int','is-lazy','is-leap-year',
- 'isNaN','isnt','is-prime','is-relative','is-routine','is-setting',
- 'is-win','item','iterator','join','keep','kept','KERNELnames','key',
- 'keyof','keys','kill','kv','kxxv','l','lang','last','lastcall','later',
- 'lazy','lc','leading','level','like','line','lines','link','List',
- 'listen','live','lives-ok','local','lock','log','log10','lookup','lsb',
- 'made','MAIN','make','Map','match','max','maxpairs','merge','message',
- 'method','method_table','methods','migrate','min','minmax','minpairs',
- 'minute','misplaced','Mix','MixHash','mkdir','mode','modified','month',
- 'move','mro','msb','multi','multiness','my','name','named','named_names',
- 'narrow','nativecast','native-descriptor','nativesizeof','new','new_type',
- 'new-from-daycount','new-from-pairs','next','nextcallee','next-handle',
- 'nextsame','nextwith','NFC','NFD','NFKC','NFKD','nl-in','nl-out',
- 'nodemap','nok','none','norm','not','note','now','nude','Num',
- 'numerator','Numeric','of','offset','offset-in-hours','offset-in-minutes',
- 'ok','old','on-close','one','on-switch','open','opened','operation',
- 'optional','ord','ords','orig','os-error','osname','out-buffer','pack',
- 'package','package-kind','package-name','packages','pair','pairs',
- 'pairup','parameter','params','parent','parent-name','parents','parse',
- 'parse-base','parsefile','parse-names','parts','pass','path','path-sep',
- 'payload','peer-host','peer-port','periods','perl','permutations','phaser',
- 'pick','pickpairs','pid','placeholder','plan','plus','polar','poll',
- 'polymod','pop','pos','positional','posix','postfix','postmatch',
- 'precomp-ext','precomp-target','pred','prefix','prematch','prepend',
- 'print','printf','print-nl','print-to','private','private_method_table',
- 'proc','produce','Promise','prompt','protect','pull-one','push',
- 'push-all','push-at-least','push-exactly','push-until-lazy','put',
- 'qualifier-type','quit','r','race','radix','rand','range','Rat','raw',
- 're','read','readchars','readonly','ready','Real','reallocate','reals',
- 'reason','rebless','receive','recv','redispatcher','redo','reduce',
- 'rel2abs','relative','release','rename','repeated','replacement',
- 'report','reserved','resolve','restore','result','resume','rethrow',
- 'reverse','right','rindex','rmdir','role','roles_to_compose','rolish',
- 'roll','rootdir','roots','rotate','rotor','round','roundrobin',
- 'routine-type','run','rwx','s','samecase','samemark','samewith','say',
- 'schedule-on','scheduler','scope','sec','sech','second','seek','self',
- 'send','Set','set_hidden','set_name','set_package','set_rw','set_value',
- 'SetHash','set-instruments','setup_finalization','shape','share','shell',
- 'shift','sibling','sigil','sign','signal','signals','signature','sin',
- 'sinh','sink','sink-all','skip','skip-at-least','skip-at-least-pull-one',
- 'skip-one','skip-rest','sleep','sleep-timer','sleep-until','Slip','slurp',
- 'slurp-rest','slurpy','snap','snapper','so','socket-host','socket-port',
- 'sort','source','source-package','spawn','SPEC','splice','split',
- 'splitdir','splitpath','sprintf','spurt','sqrt','squish','srand','stable',
- 'start','started','starts-with','status','stderr','stdout','Str',
- 'sub_signature','subbuf','subbuf-rw','subname','subparse','subst',
- 'subst-mutate','substr','substr-eq','substr-rw','subtest','succ','sum',
- 'Supply','symlink','t','tail','take','take-rw','tan','tanh','tap',
- 'target','target-name','tc','tclc','tell','then','throttle','throw',
- 'throws-like','timezone','tmpdir','to','today','todo','toggle','to-posix',
- 'total','trailing','trans','tree','trim','trim-leading','trim-trailing',
- 'truncate','truncated-to','trusts','try_acquire','trying','twigil','type',
- 'type_captures','typename','uc','udp','uncaught_handler','unimatch',
- 'uniname','uninames','uniparse','uniprop','uniprops','unique','unival',
- 'univals','unlike','unlink','unlock','unpack','unpolar','unshift',
- 'unwrap','updir','USAGE','use-ok','utc','val','value','values','VAR',
- 'variable','verbose-config','version','VMnames','volume','vow','w','wait',
- 'warn','watch','watch-path','week','weekday-of-month','week-number',
- 'week-year','WHAT','when','WHERE','WHEREFORE','WHICH','WHO',
- 'whole-second','WHY','wordcase','words','workaround','wrap','write',
- 'write-to','x','yada','year','yield','yyyy-mm-dd','z','zip','zip-latest',
-
- )
-
- PERL6_BUILTIN_CLASSES = (
- #Booleans
- 'False','True',
- #Classes
- 'Any','Array','Associative','AST','atomicint','Attribute','Backtrace',
- 'Backtrace::Frame','Bag','Baggy','BagHash','Blob','Block','Bool','Buf',
- 'Callable','CallFrame','Cancellation','Capture','CArray','Channel','Code',
- 'compiler','Complex','ComplexStr','Cool','CurrentThreadScheduler',
- 'Cursor','Date','Dateish','DateTime','Distro','Duration','Encoding',
- 'Exception','Failure','FatRat','Grammar','Hash','HyperWhatever','Instant',
- 'Int','int16','int32','int64','int8','IntStr','IO','IO::ArgFiles',
- 'IO::CatHandle','IO::Handle','IO::Notification','IO::Path',
- 'IO::Path::Cygwin','IO::Path::QNX','IO::Path::Unix','IO::Path::Win32',
- 'IO::Pipe','IO::Socket','IO::Socket::Async','IO::Socket::INET','IO::Spec',
- 'IO::Spec::Cygwin','IO::Spec::QNX','IO::Spec::Unix','IO::Spec::Win32',
- 'IO::Special','Iterable','Iterator','Junction','Kernel','Label','List',
- 'Lock','Lock::Async','long','longlong','Macro','Map','Match',
- 'Metamodel::AttributeContainer','Metamodel::C3MRO','Metamodel::ClassHOW',
- 'Metamodel::EnumHOW','Metamodel::Finalization','Metamodel::MethodContainer',
- 'Metamodel::MROBasedMethodDispatch','Metamodel::MultipleInheritance',
- 'Metamodel::Naming','Metamodel::Primitives','Metamodel::PrivateMethodContainer',
- 'Metamodel::RoleContainer','Metamodel::Trusting','Method','Mix','MixHash',
- 'Mixy','Mu','NFC','NFD','NFKC','NFKD','Nil','Num','num32','num64',
- 'Numeric','NumStr','ObjAt','Order','Pair','Parameter','Perl','Pod::Block',
- 'Pod::Block::Code','Pod::Block::Comment','Pod::Block::Declarator',
- 'Pod::Block::Named','Pod::Block::Para','Pod::Block::Table','Pod::Heading',
- 'Pod::Item','Pointer','Positional','PositionalBindFailover','Proc',
- 'Proc::Async','Promise','Proxy','PseudoStash','QuantHash','Range','Rat',
- 'Rational','RatStr','Real','Regex','Routine','Scalar','Scheduler',
- 'Semaphore','Seq','Set','SetHash','Setty','Signature','size_t','Slip',
- 'Stash','Str','StrDistance','Stringy','Sub','Submethod','Supplier',
- 'Supplier::Preserving','Supply','Systemic','Tap','Telemetry',
- 'Telemetry::Instrument::Thread','Telemetry::Instrument::Usage',
- 'Telemetry::Period','Telemetry::Sampler','Thread','ThreadPoolScheduler',
- 'UInt','uint16','uint32','uint64','uint8','Uni','utf8','Variable',
- 'Version','VM','Whatever','WhateverCode','WrapHandle'
- )
-
- PERL6_OPERATORS = (
- 'X', 'Z', 'after', 'also', 'and', 'andthen', 'before', 'cmp', 'div',
- 'eq', 'eqv', 'extra', 'ff', 'fff', 'ge', 'gt', 'le', 'leg', 'lt', 'm',
- 'mm', 'mod', 'ne', 'or', 'orelse', 'rx', 's', 'tr', 'x', 'xor', 'xx',
- '++', '--', '**', '!', '+', '-', '~', '?', '|', '||', '+^', '~^', '?^',
- '^', '*', '/', '%', '%%', '+&', '+<', '+>', '~&', '~<', '~>', '?&',
- 'gcd', 'lcm', '+', '-', '+|', '+^', '~|', '~^', '?|', '?^',
- '~', '&', '^', 'but', 'does', '<=>', '..', '..^', '^..', '^..^',
- '!=', '==', '<', '<=', '>', '>=', '~~', '===', '!eqv',
- '&&', '||', '^^', '//', 'min', 'max', '??', '!!', 'ff', 'fff', 'so',
- 'not', '<==', '==>', '<<==', '==>>','unicmp',
- )
-
- # Perl 6 has a *lot* of possible bracketing characters
- # this list was lifted from STD.pm6 (https://github.com/perl6/std)
- PERL6_BRACKETS = {
- '\u0028': '\u0029', '\u003c': '\u003e', '\u005b': '\u005d',
- '\u007b': '\u007d', '\u00ab': '\u00bb', '\u0f3a': '\u0f3b',
- '\u0f3c': '\u0f3d', '\u169b': '\u169c', '\u2018': '\u2019',
- '\u201a': '\u2019', '\u201b': '\u2019', '\u201c': '\u201d',
- '\u201e': '\u201d', '\u201f': '\u201d', '\u2039': '\u203a',
- '\u2045': '\u2046', '\u207d': '\u207e', '\u208d': '\u208e',
- '\u2208': '\u220b', '\u2209': '\u220c', '\u220a': '\u220d',
- '\u2215': '\u29f5', '\u223c': '\u223d', '\u2243': '\u22cd',
- '\u2252': '\u2253', '\u2254': '\u2255', '\u2264': '\u2265',
- '\u2266': '\u2267', '\u2268': '\u2269', '\u226a': '\u226b',
- '\u226e': '\u226f', '\u2270': '\u2271', '\u2272': '\u2273',
- '\u2274': '\u2275', '\u2276': '\u2277', '\u2278': '\u2279',
- '\u227a': '\u227b', '\u227c': '\u227d', '\u227e': '\u227f',
- '\u2280': '\u2281', '\u2282': '\u2283', '\u2284': '\u2285',
- '\u2286': '\u2287', '\u2288': '\u2289', '\u228a': '\u228b',
- '\u228f': '\u2290', '\u2291': '\u2292', '\u2298': '\u29b8',
- '\u22a2': '\u22a3', '\u22a6': '\u2ade', '\u22a8': '\u2ae4',
- '\u22a9': '\u2ae3', '\u22ab': '\u2ae5', '\u22b0': '\u22b1',
- '\u22b2': '\u22b3', '\u22b4': '\u22b5', '\u22b6': '\u22b7',
- '\u22c9': '\u22ca', '\u22cb': '\u22cc', '\u22d0': '\u22d1',
- '\u22d6': '\u22d7', '\u22d8': '\u22d9', '\u22da': '\u22db',
- '\u22dc': '\u22dd', '\u22de': '\u22df', '\u22e0': '\u22e1',
- '\u22e2': '\u22e3', '\u22e4': '\u22e5', '\u22e6': '\u22e7',
- '\u22e8': '\u22e9', '\u22ea': '\u22eb', '\u22ec': '\u22ed',
- '\u22f0': '\u22f1', '\u22f2': '\u22fa', '\u22f3': '\u22fb',
- '\u22f4': '\u22fc', '\u22f6': '\u22fd', '\u22f7': '\u22fe',
- '\u2308': '\u2309', '\u230a': '\u230b', '\u2329': '\u232a',
- '\u23b4': '\u23b5', '\u2768': '\u2769', '\u276a': '\u276b',
- '\u276c': '\u276d', '\u276e': '\u276f', '\u2770': '\u2771',
- '\u2772': '\u2773', '\u2774': '\u2775', '\u27c3': '\u27c4',
- '\u27c5': '\u27c6', '\u27d5': '\u27d6', '\u27dd': '\u27de',
- '\u27e2': '\u27e3', '\u27e4': '\u27e5', '\u27e6': '\u27e7',
- '\u27e8': '\u27e9', '\u27ea': '\u27eb', '\u2983': '\u2984',
- '\u2985': '\u2986', '\u2987': '\u2988', '\u2989': '\u298a',
- '\u298b': '\u298c', '\u298d': '\u298e', '\u298f': '\u2990',
- '\u2991': '\u2992', '\u2993': '\u2994', '\u2995': '\u2996',
- '\u2997': '\u2998', '\u29c0': '\u29c1', '\u29c4': '\u29c5',
- '\u29cf': '\u29d0', '\u29d1': '\u29d2', '\u29d4': '\u29d5',
- '\u29d8': '\u29d9', '\u29da': '\u29db', '\u29f8': '\u29f9',
- '\u29fc': '\u29fd', '\u2a2b': '\u2a2c', '\u2a2d': '\u2a2e',
- '\u2a34': '\u2a35', '\u2a3c': '\u2a3d', '\u2a64': '\u2a65',
- '\u2a79': '\u2a7a', '\u2a7d': '\u2a7e', '\u2a7f': '\u2a80',
- '\u2a81': '\u2a82', '\u2a83': '\u2a84', '\u2a8b': '\u2a8c',
- '\u2a91': '\u2a92', '\u2a93': '\u2a94', '\u2a95': '\u2a96',
- '\u2a97': '\u2a98', '\u2a99': '\u2a9a', '\u2a9b': '\u2a9c',
- '\u2aa1': '\u2aa2', '\u2aa6': '\u2aa7', '\u2aa8': '\u2aa9',
- '\u2aaa': '\u2aab', '\u2aac': '\u2aad', '\u2aaf': '\u2ab0',
- '\u2ab3': '\u2ab4', '\u2abb': '\u2abc', '\u2abd': '\u2abe',
- '\u2abf': '\u2ac0', '\u2ac1': '\u2ac2', '\u2ac3': '\u2ac4',
- '\u2ac5': '\u2ac6', '\u2acd': '\u2ace', '\u2acf': '\u2ad0',
- '\u2ad1': '\u2ad2', '\u2ad3': '\u2ad4', '\u2ad5': '\u2ad6',
- '\u2aec': '\u2aed', '\u2af7': '\u2af8', '\u2af9': '\u2afa',
- '\u2e02': '\u2e03', '\u2e04': '\u2e05', '\u2e09': '\u2e0a',
- '\u2e0c': '\u2e0d', '\u2e1c': '\u2e1d', '\u2e20': '\u2e21',
- '\u3008': '\u3009', '\u300a': '\u300b', '\u300c': '\u300d',
- '\u300e': '\u300f', '\u3010': '\u3011', '\u3014': '\u3015',
- '\u3016': '\u3017', '\u3018': '\u3019', '\u301a': '\u301b',
- '\u301d': '\u301e', '\ufd3e': '\ufd3f', '\ufe17': '\ufe18',
- '\ufe35': '\ufe36', '\ufe37': '\ufe38', '\ufe39': '\ufe3a',
- '\ufe3b': '\ufe3c', '\ufe3d': '\ufe3e', '\ufe3f': '\ufe40',
- '\ufe41': '\ufe42', '\ufe43': '\ufe44', '\ufe47': '\ufe48',
- '\ufe59': '\ufe5a', '\ufe5b': '\ufe5c', '\ufe5d': '\ufe5e',
- '\uff08': '\uff09', '\uff1c': '\uff1e', '\uff3b': '\uff3d',
- '\uff5b': '\uff5d', '\uff5f': '\uff60', '\uff62': '\uff63',
- }
-
- def _build_word_match(words, boundary_regex_fragment=None, prefix='', suffix=''):
- if boundary_regex_fragment is None:
- return r'\b(' + prefix + r'|'.join(re.escape(x) for x in words) + \
- suffix + r')\b'
- else:
- return r'(?<!' + boundary_regex_fragment + r')' + prefix + r'(' + \
- r'|'.join(re.escape(x) for x in words) + r')' + suffix + r'(?!' + \
- boundary_regex_fragment + r')'
-
- def brackets_callback(token_class):
- def callback(lexer, match, context):
- groups = match.groupdict()
- opening_chars = groups['delimiter']
- n_chars = len(opening_chars)
- adverbs = groups.get('adverbs')
-
- closer = Perl6Lexer.PERL6_BRACKETS.get(opening_chars[0])
- text = context.text
-
- if closer is None: # it's not a mirrored character, which means we
- # just need to look for the next occurrence
-
- end_pos = text.find(opening_chars, match.start('delimiter') + n_chars)
- else: # we need to look for the corresponding closing character,
- # keep nesting in mind
- closing_chars = closer * n_chars
- nesting_level = 1
-
- search_pos = match.start('delimiter')
-
- while nesting_level > 0:
- next_open_pos = text.find(opening_chars, search_pos + n_chars)
- next_close_pos = text.find(closing_chars, search_pos + n_chars)
-
- if next_close_pos == -1:
- next_close_pos = len(text)
- nesting_level = 0
- elif next_open_pos != -1 and next_open_pos < next_close_pos:
- nesting_level += 1
- search_pos = next_open_pos
- else: # next_close_pos < next_open_pos
- nesting_level -= 1
- search_pos = next_close_pos
-
- end_pos = next_close_pos
-
- if end_pos < 0: # if we didn't find a closer, just highlight the
- # rest of the text in this class
- end_pos = len(text)
-
- if adverbs is not None and re.search(r':to\b', adverbs):
- heredoc_terminator = text[match.start('delimiter') + n_chars:end_pos]
- end_heredoc = re.search(r'^\s*' + re.escape(heredoc_terminator) +
- r'\s*$', text[end_pos:], re.MULTILINE)
-
- if end_heredoc:
- end_pos += end_heredoc.end()
- else:
- end_pos = len(text)
-
- yield match.start(), token_class, text[match.start():end_pos + n_chars]
- context.pos = end_pos + n_chars
-
- return callback
-
- def opening_brace_callback(lexer, match, context):
- stack = context.stack
-
- yield match.start(), Text, context.text[match.start():match.end()]
- context.pos = match.end()
-
- # if we encounter an opening brace and we're one level
- # below a token state, it means we need to increment
- # the nesting level for braces so we know later when
- # we should return to the token rules.
- if len(stack) > 2 and stack[-2] == 'token':
- context.perl6_token_nesting_level += 1
-
- def closing_brace_callback(lexer, match, context):
- stack = context.stack
-
- yield match.start(), Text, context.text[match.start():match.end()]
- context.pos = match.end()
-
- # if we encounter a free closing brace and we're one level
- # below a token state, it means we need to check the nesting
- # level to see if we need to return to the token state.
- if len(stack) > 2 and stack[-2] == 'token':
- context.perl6_token_nesting_level -= 1
- if context.perl6_token_nesting_level == 0:
- stack.pop()
-
- def embedded_perl6_callback(lexer, match, context):
- context.perl6_token_nesting_level = 1
- yield match.start(), Text, context.text[match.start():match.end()]
- context.pos = match.end()
- context.stack.append('root')
-
- # If you're modifying these rules, be careful if you need to process '{' or '}'
- # characters. We have special logic for processing these characters (due to the fact
- # that you can nest Perl 6 code in regex blocks), so if you need to process one of
- # them, make sure you also process the corresponding one!
- tokens = {
- 'common': [
- (r'#[`|=](?P<delimiter>(?P<first_char>[' + ''.join(PERL6_BRACKETS) + r'])(?P=first_char)*)',
- brackets_callback(Comment.Multiline)),
- (r'#[^\n]*$', Comment.Single),
- (r'^(\s*)=begin\s+(\w+)\b.*?^\1=end\s+\2', Comment.Multiline),
- (r'^(\s*)=for.*?\n\s*?\n', Comment.Multiline),
- (r'^=.*?\n\s*?\n', Comment.Multiline),
- (r'(regex|token|rule)(\s*' + PERL6_IDENTIFIER_RANGE + '+:sym)',
- bygroups(Keyword, Name), 'token-sym-brackets'),
- (r'(regex|token|rule)(?!' + PERL6_IDENTIFIER_RANGE + r')(\s*' + PERL6_IDENTIFIER_RANGE + '+)?',
- bygroups(Keyword, Name), 'pre-token'),
- # deal with a special case in the Perl 6 grammar (role q { ... })
- (r'(role)(\s+)(q)(\s*)', bygroups(Keyword, Text, Name, Text)),
- (_build_word_match(PERL6_KEYWORDS, PERL6_IDENTIFIER_RANGE), Keyword),
- (_build_word_match(PERL6_BUILTIN_CLASSES, PERL6_IDENTIFIER_RANGE, suffix='(?::[UD])?'),
- Name.Builtin),
- (_build_word_match(PERL6_BUILTINS, PERL6_IDENTIFIER_RANGE), Name.Builtin),
- # copied from PerlLexer
- (r'[$@%&][.^:?=!~]?' + PERL6_IDENTIFIER_RANGE + '+(?:<<.*?>>|<.*?>|«.*?»)*',
- Name.Variable),
- (r'\$[!/](?:<<.*?>>|<.*?>|«.*?»)*', Name.Variable.Global),
- (r'::\?\w+', Name.Variable.Global),
- (r'[$@%&]\*' + PERL6_IDENTIFIER_RANGE + '+(?:<<.*?>>|<.*?>|«.*?»)*',
- Name.Variable.Global),
- (r'\$(?:<.*?>)+', Name.Variable),
- (r'(?:q|qq|Q)[a-zA-Z]?\s*(?P<adverbs>:[\w\s:]+)?\s*(?P<delimiter>(?P<first_char>[^0-9a-zA-Z:\s])'
- r'(?P=first_char)*)', brackets_callback(String)),
- # copied from PerlLexer
- (r'0_?[0-7]+(_[0-7]+)*', Number.Oct),
- (r'0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*', Number.Hex),
- (r'0b[01]+(_[01]+)*', Number.Bin),
- (r'(?i)(\d*(_\d*)*\.\d+(_\d*)*|\d+(_\d*)*\.\d+(_\d*)*)(e[+-]?\d+)?',
- Number.Float),
- (r'(?i)\d+(_\d*)*e[+-]?\d+(_\d*)*', Number.Float),
- (r'\d+(_\d+)*', Number.Integer),
- (r'(?<=~~)\s*/(?:\\\\|\\/|.)*?/', String.Regex),
- (r'(?<=[=(,])\s*/(?:\\\\|\\/|.)*?/', String.Regex),
- (r'm\w+(?=\()', Name),
- (r'(?:m|ms|rx)\s*(?P<adverbs>:[\w\s:]+)?\s*(?P<delimiter>(?P<first_char>[^\w:\s])'
- r'(?P=first_char)*)', brackets_callback(String.Regex)),
- (r'(?:s|ss|tr)\s*(?::[\w\s:]+)?\s*/(?:\\\\|\\/|.)*?/(?:\\\\|\\/|.)*?/',
- String.Regex),
- (r'<[^\s=].*?\S>', String),
- (_build_word_match(PERL6_OPERATORS), Operator),
- (r'\w' + PERL6_IDENTIFIER_RANGE + '*', Name),
- (r"'(\\\\|\\[^\\]|[^'\\])*'", String),
- (r'"(\\\\|\\[^\\]|[^"\\])*"', String),
- ],
- 'root': [
- include('common'),
- (r'\{', opening_brace_callback),
- (r'\}', closing_brace_callback),
- (r'.+?', Text),
- ],
- 'pre-token': [
- include('common'),
- (r'\{', Text, ('#pop', 'token')),
- (r'.+?', Text),
- ],
- 'token-sym-brackets': [
- (r'(?P<delimiter>(?P<first_char>[' + ''.join(PERL6_BRACKETS) + '])(?P=first_char)*)',
- brackets_callback(Name), ('#pop', 'pre-token')),
- default(('#pop', 'pre-token')),
- ],
- 'token': [
- (r'\}', Text, '#pop'),
- (r'(?<=:)(?:my|our|state|constant|temp|let).*?;', using(this)),
- # make sure that quotes in character classes aren't treated as strings
- (r'<(?:[-!?+.]\s*)?\[.*?\]>', String.Regex),
- # make sure that '#' characters in quotes aren't treated as comments
- (r"(?<!\\)'(\\\\|\\[^\\]|[^'\\])*'", String.Regex),
- (r'(?<!\\)"(\\\\|\\[^\\]|[^"\\])*"', String.Regex),
- (r'#.*?$', Comment.Single),
- (r'\{', embedded_perl6_callback),
- ('.+?', String.Regex),
- ],
- }
-
- def analyse_text(text):
- def strip_pod(lines):
- in_pod = False
- stripped_lines = []
-
- for line in lines:
- if re.match(r'^=(?:end|cut)', line):
- in_pod = False
- elif re.match(r'^=\w+', line):
- in_pod = True
- elif not in_pod:
- stripped_lines.append(line)
-
- return stripped_lines
-
- # XXX handle block comments
- lines = text.splitlines()
- lines = strip_pod(lines)
- text = '\n'.join(lines)
-
- if shebang_matches(text, r'perl6|rakudo|niecza|pugs'):
- return True
-
- saw_perl_decl = False
- rating = False
-
- # check for my/our/has declarations
- if re.search(r"(?:my|our|has)\s+(?:" + Perl6Lexer.PERL6_IDENTIFIER_RANGE +
- r"+\s+)?[$@%&(]", text):
- rating = 0.8
- saw_perl_decl = True
-
- for line in lines:
- line = re.sub('#.*', '', line)
- if re.match(r'^\s*$', line):
- continue
-
- # match v6; use v6; use v6.0; use v6.0.0;
- if re.match(r'^\s*(?:use\s+)?v6(?:\.\d(?:\.\d)?)?;', line):
- return True
- # match class, module, role, enum, grammar declarations
- class_decl = re.match(r'^\s*(?:(?P<scope>my|our)\s+)?(?:module|class|role|enum|grammar)', line)
- if class_decl:
- if saw_perl_decl or class_decl.group('scope') is not None:
- return True
- rating = 0.05
- continue
- break
-
- return rating
-
- def __init__(self, **options):
- super().__init__(**options)
- self.encoding = options.get('encoding', 'utf-8')
+# -*- coding: utf-8 -*-
+"""
+ pygments.lexers.perl
+ ~~~~~~~~~~~~~~~~~~~~
+
+ Lexers for Perl, Raku and related languages.
+
+ :copyright: Copyright 2006-2021 by the Pygments team, see AUTHORS.
+ :license: BSD, see LICENSE for details.
+"""
+
+import re
+
+from pygments.lexer import RegexLexer, ExtendedRegexLexer, include, bygroups, \
+ using, this, default, words
+from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
+ Number, Punctuation
+from pygments.util import shebang_matches
+
+__all__ = ['PerlLexer', 'Perl6Lexer']
+
+
+class PerlLexer(RegexLexer):
+ """
+ For `Perl <https://www.perl.org>`_ source code.
+ """
+
+ name = 'Perl'
+ aliases = ['perl', 'pl']
+ filenames = ['*.pl', '*.pm', '*.t', '*.perl']
+ mimetypes = ['text/x-perl', 'application/x-perl']
+
+ flags = re.DOTALL | re.MULTILINE
+ # TODO: give this to a perl guy who knows how to parse perl...
+ tokens = {
+ 'balanced-regex': [
+ (r'/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*', String.Regex, '#pop'),
+ (r'!(\\\\|\\[^\\]|[^\\!])*![egimosx]*', String.Regex, '#pop'),
+ (r'\\(\\\\|[^\\])*\\[egimosx]*', String.Regex, '#pop'),
+ (r'\{(\\\\|\\[^\\]|[^\\}])*\}[egimosx]*', String.Regex, '#pop'),
+ (r'<(\\\\|\\[^\\]|[^\\>])*>[egimosx]*', String.Regex, '#pop'),
+ (r'\[(\\\\|\\[^\\]|[^\\\]])*\][egimosx]*', String.Regex, '#pop'),
+ (r'\((\\\\|\\[^\\]|[^\\)])*\)[egimosx]*', String.Regex, '#pop'),
+ (r'@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*', String.Regex, '#pop'),
+ (r'%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*', String.Regex, '#pop'),
+ (r'\$(\\\\|\\[^\\]|[^\\$])*\$[egimosx]*', String.Regex, '#pop'),
+ ],
+ 'root': [
+ (r'\A\#!.+?$', Comment.Hashbang),
+ (r'\#.*?$', Comment.Single),
+ (r'^=[a-zA-Z0-9]+\s+.*?\n=cut', Comment.Multiline),
+ (words((
+ 'case', 'continue', 'do', 'else', 'elsif', 'for', 'foreach',
+ 'if', 'last', 'my', 'next', 'our', 'redo', 'reset', 'then',
+ 'unless', 'until', 'while', 'print', 'new', 'BEGIN',
+ 'CHECK', 'INIT', 'END', 'return'), suffix=r'\b'),
+ Keyword),
+ (r'(format)(\s+)(\w+)(\s*)(=)(\s*\n)',
+ bygroups(Keyword, Text, Name, Text, Punctuation, Text), 'format'),
+ (r'(eq|lt|gt|le|ge|ne|not|and|or|cmp)\b', Operator.Word),
+ # common delimiters
+ (r's/(\\\\|\\[^\\]|[^\\/])*/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*',
+ String.Regex),
+ (r's!(\\\\|\\!|[^!])*!(\\\\|\\!|[^!])*![egimosx]*', String.Regex),
+ (r's\\(\\\\|[^\\])*\\(\\\\|[^\\])*\\[egimosx]*', String.Regex),
+ (r's@(\\\\|\\[^\\]|[^\\@])*@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*',
+ String.Regex),
+ (r's%(\\\\|\\[^\\]|[^\\%])*%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*',
+ String.Regex),
+ # balanced delimiters
+ (r's\{(\\\\|\\[^\\]|[^\\}])*\}\s*', String.Regex, 'balanced-regex'),
+ (r's<(\\\\|\\[^\\]|[^\\>])*>\s*', String.Regex, 'balanced-regex'),
+ (r's\[(\\\\|\\[^\\]|[^\\\]])*\]\s*', String.Regex,
+ 'balanced-regex'),
+ (r's\((\\\\|\\[^\\]|[^\\)])*\)\s*', String.Regex,
+ 'balanced-regex'),
+
+ (r'm?/(\\\\|\\[^\\]|[^\\/\n])*/[gcimosx]*', String.Regex),
+ (r'm(?=[/!\\{<\[(@%$])', String.Regex, 'balanced-regex'),
+ (r'((?<==~)|(?<=\())\s*/(\\\\|\\[^\\]|[^\\/])*/[gcimosx]*',
+ String.Regex),
+ (r'\s+', Text),
+ (words((
+ 'abs', 'accept', 'alarm', 'atan2', 'bind', 'binmode', 'bless', 'caller', 'chdir',
+ 'chmod', 'chomp', 'chop', 'chown', 'chr', 'chroot', 'close', 'closedir', 'connect',
+ 'continue', 'cos', 'crypt', 'dbmclose', 'dbmopen', 'defined', 'delete', 'die',
+ 'dump', 'each', 'endgrent', 'endhostent', 'endnetent', 'endprotoent',
+ 'endpwent', 'endservent', 'eof', 'eval', 'exec', 'exists', 'exit', 'exp', 'fcntl',
+ 'fileno', 'flock', 'fork', 'format', 'formline', 'getc', 'getgrent', 'getgrgid',
+ 'getgrnam', 'gethostbyaddr', 'gethostbyname', 'gethostent', 'getlogin',
+ 'getnetbyaddr', 'getnetbyname', 'getnetent', 'getpeername', 'getpgrp',
+ 'getppid', 'getpriority', 'getprotobyname', 'getprotobynumber',
+ 'getprotoent', 'getpwent', 'getpwnam', 'getpwuid', 'getservbyname',
+ 'getservbyport', 'getservent', 'getsockname', 'getsockopt', 'glob', 'gmtime',
+ 'goto', 'grep', 'hex', 'import', 'index', 'int', 'ioctl', 'join', 'keys', 'kill', 'last',
+ 'lc', 'lcfirst', 'length', 'link', 'listen', 'local', 'localtime', 'log', 'lstat',
+ 'map', 'mkdir', 'msgctl', 'msgget', 'msgrcv', 'msgsnd', 'my', 'next', 'oct', 'open',
+ 'opendir', 'ord', 'our', 'pack', 'pipe', 'pop', 'pos', 'printf',
+ 'prototype', 'push', 'quotemeta', 'rand', 'read', 'readdir',
+ 'readline', 'readlink', 'readpipe', 'recv', 'redo', 'ref', 'rename',
+ 'reverse', 'rewinddir', 'rindex', 'rmdir', 'scalar', 'seek', 'seekdir',
+ 'select', 'semctl', 'semget', 'semop', 'send', 'setgrent', 'sethostent', 'setnetent',
+ 'setpgrp', 'setpriority', 'setprotoent', 'setpwent', 'setservent',
+ 'setsockopt', 'shift', 'shmctl', 'shmget', 'shmread', 'shmwrite', 'shutdown',
+ 'sin', 'sleep', 'socket', 'socketpair', 'sort', 'splice', 'split', 'sprintf', 'sqrt',
+ 'srand', 'stat', 'study', 'substr', 'symlink', 'syscall', 'sysopen', 'sysread',
+ 'sysseek', 'system', 'syswrite', 'tell', 'telldir', 'tie', 'tied', 'time', 'times', 'tr',
+ 'truncate', 'uc', 'ucfirst', 'umask', 'undef', 'unlink', 'unpack', 'unshift', 'untie',
+ 'utime', 'values', 'vec', 'wait', 'waitpid', 'wantarray', 'warn', 'write'), suffix=r'\b'),
+ Name.Builtin),
+ (r'((__(DATA|DIE|WARN)__)|(STD(IN|OUT|ERR)))\b', Name.Builtin.Pseudo),
+ (r'(<<)([\'"]?)([a-zA-Z_]\w*)(\2;?\n.*?\n)(\3)(\n)',
+ bygroups(String, String, String.Delimiter, String, String.Delimiter, Text)),
+ (r'__END__', Comment.Preproc, 'end-part'),
+ (r'\$\^[ADEFHILMOPSTWX]', Name.Variable.Global),
+ (r"\$[\\\"\[\]'&`+*.,;=%~?@$!<>(^|/-](?!\w)", Name.Variable.Global),
+ (r'[$@%#]+', Name.Variable, 'varname'),
+ (r'0_?[0-7]+(_[0-7]+)*', Number.Oct),
+ (r'0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*', Number.Hex),
+ (r'0b[01]+(_[01]+)*', Number.Bin),
+ (r'(?i)(\d*(_\d*)*\.\d+(_\d*)*|\d+(_\d*)*\.\d+(_\d*)*)(e[+-]?\d+)?',
+ Number.Float),
+ (r'(?i)\d+(_\d*)*e[+-]?\d+(_\d*)*', Number.Float),
+ (r'\d+(_\d+)*', Number.Integer),
+ (r"'(\\\\|\\[^\\]|[^'\\])*'", String),
+ (r'"(\\\\|\\[^\\]|[^"\\])*"', String),
+ (r'`(\\\\|\\[^\\]|[^`\\])*`', String.Backtick),
+ (r'<([^\s>]+)>', String.Regex),
+ (r'(q|qq|qw|qr|qx)\{', String.Other, 'cb-string'),
+ (r'(q|qq|qw|qr|qx)\(', String.Other, 'rb-string'),
+ (r'(q|qq|qw|qr|qx)\[', String.Other, 'sb-string'),
+ (r'(q|qq|qw|qr|qx)\<', String.Other, 'lt-string'),
+ (r'(q|qq|qw|qr|qx)([\W_])(.|\n)*?\2', String.Other),
+ (r'(package)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)',
+ bygroups(Keyword, Text, Name.Namespace)),
+ (r'(use|require|no)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)',
+ bygroups(Keyword, Text, Name.Namespace)),
+ (r'(sub)(\s+)', bygroups(Keyword, Text), 'funcname'),
+ (words((
+ 'no', 'package', 'require', 'use'), suffix=r'\b'),
+ Keyword),
+ (r'(\[\]|\*\*|::|<<|>>|>=|<=>|<=|={3}|!=|=~|'
+ r'!~|&&?|\|\||\.{1,3})', Operator),
+ (r'[-+/*%=<>&^|!\\~]=?', Operator),
+ (r'[()\[\]:;,<>/?{}]', Punctuation), # yes, there's no shortage
+ # of punctuation in Perl!
+ (r'(?=\w)', Name, 'name'),
+ ],
+ 'format': [
+ (r'\.\n', String.Interpol, '#pop'),
+ (r'[^\n]*\n', String.Interpol),
+ ],
+ 'varname': [
+ (r'\s+', Text),
+ (r'\{', Punctuation, '#pop'), # hash syntax?
+ (r'\)|,', Punctuation, '#pop'), # argument specifier
+ (r'\w+::', Name.Namespace),
+ (r'[\w:]+', Name.Variable, '#pop'),
+ ],
+ 'name': [
+ (r'[a-zA-Z_]\w*(::[a-zA-Z_]\w*)*(::)?(?=\s*->)', Name.Namespace, '#pop'),
+ (r'[a-zA-Z_]\w*(::[a-zA-Z_]\w*)*::', Name.Namespace, '#pop'),
+ (r'[\w:]+', Name, '#pop'),
+ (r'[A-Z_]+(?=\W)', Name.Constant, '#pop'),
+ (r'(?=\W)', Text, '#pop'),
+ ],
+ 'funcname': [
+ (r'[a-zA-Z_]\w*[!?]?', Name.Function),
+ (r'\s+', Text),
+ # argument declaration
+ (r'(\([$@%]*\))(\s*)', bygroups(Punctuation, Text)),
+ (r';', Punctuation, '#pop'),
+ (r'.*?\{', Punctuation, '#pop'),
+ ],
+ 'cb-string': [
+ (r'\\[{}\\]', String.Other),
+ (r'\\', String.Other),
+ (r'\{', String.Other, 'cb-string'),
+ (r'\}', String.Other, '#pop'),
+ (r'[^{}\\]+', String.Other)
+ ],
+ 'rb-string': [
+ (r'\\[()\\]', String.Other),
+ (r'\\', String.Other),
+ (r'\(', String.Other, 'rb-string'),
+ (r'\)', String.Other, '#pop'),
+ (r'[^()]+', String.Other)
+ ],
+ 'sb-string': [
+ (r'\\[\[\]\\]', String.Other),
+ (r'\\', String.Other),
+ (r'\[', String.Other, 'sb-string'),
+ (r'\]', String.Other, '#pop'),
+ (r'[^\[\]]+', String.Other)
+ ],
+ 'lt-string': [
+ (r'\\[<>\\]', String.Other),
+ (r'\\', String.Other),
+ (r'\<', String.Other, 'lt-string'),
+ (r'\>', String.Other, '#pop'),
+ (r'[^<>]+', String.Other)
+ ],
+ 'end-part': [
+ (r'.+', Comment.Preproc, '#pop')
+ ]
+ }
+
+ def analyse_text(text):
+ if shebang_matches(text, r'perl'):
+ return True
+
+ result = 0
+
+ if re.search(r'(?:my|our)\s+[$@%(]', text):
+ result += 0.9
+
+ if ':=' in text:
+ # := is not valid Perl, but it appears in unicon, so we should
+ # become less confident if we think we found Perl with :=
+ result /= 2
+
+ return result
+
+
+class Perl6Lexer(ExtendedRegexLexer):
+ """
+ For `Raku <https://www.raku.org>`_ (a.k.a. Perl 6) source code.
+
+ .. versionadded:: 2.0
+ """
+
+ name = 'Perl6'
+ aliases = ['perl6', 'pl6', 'raku']
+ filenames = ['*.pl', '*.pm', '*.nqp', '*.p6', '*.6pl', '*.p6l', '*.pl6',
+ '*.6pm', '*.p6m', '*.pm6', '*.t', '*.raku', '*.rakumod',
+ '*.rakutest', '*.rakudoc']
+ mimetypes = ['text/x-perl6', 'application/x-perl6']
+ flags = re.MULTILINE | re.DOTALL | re.UNICODE
+
+ PERL6_IDENTIFIER_RANGE = r"['\w:-]"
+
+ PERL6_KEYWORDS = (
+ #Phasers
+ 'BEGIN','CATCH','CHECK','CLOSE','CONTROL','DOC','END','ENTER','FIRST',
+ 'INIT','KEEP','LAST','LEAVE','NEXT','POST','PRE','QUIT','UNDO',
+ #Keywords
+ 'anon','augment','but','class','constant','default','does','else',
+ 'elsif','enum','for','gather','given','grammar','has','if','import',
+ 'is','let','loop','made','make','method','module','multi','my','need',
+ 'orwith','our','proceed','proto','repeat','require','return',
+ 'return-rw','returns','role','rule','state','sub','submethod','subset',
+ 'succeed','supersede','token','try','unit','unless','until','use',
+ 'when','while','with','without',
+ #Traits
+ 'export','native','repr','required','rw','symbol',
+ )
+
+ PERL6_BUILTINS = (
+ 'ACCEPTS','abs','abs2rel','absolute','accept','accessed','acos',
+ 'acosec','acosech','acosh','acotan','acotanh','acquire','act','action',
+ 'actions','add','add_attribute','add_enum_value','add_fallback',
+ 'add_method','add_parent','add_private_method','add_role','add_trustee',
+ 'adverb','after','all','allocate','allof','allowed','alternative-names',
+ 'annotations','antipair','antipairs','any','anyof','app_lifetime',
+ 'append','arch','archname','args','arity','Array','asec','asech','asin',
+ 'asinh','ASSIGN-KEY','ASSIGN-POS','assuming','ast','at','atan','atan2',
+ 'atanh','AT-KEY','atomic-assign','atomic-dec-fetch','atomic-fetch',
+ 'atomic-fetch-add','atomic-fetch-dec','atomic-fetch-inc',
+ 'atomic-fetch-sub','atomic-inc-fetch','AT-POS','attributes','auth',
+ 'await','backtrace','Bag','BagHash','bail-out','base','basename',
+ 'base-repeating','batch','BIND-KEY','BIND-POS','bind-stderr',
+ 'bind-stdin','bind-stdout','bind-udp','bits','bless','block','Bool',
+ 'bool-only','bounds','break','Bridge','broken','BUILD','build-date',
+ 'bytes','cache','callframe','calling-package','CALL-ME','callsame',
+ 'callwith','can','cancel','candidates','cando','can-ok','canonpath',
+ 'caps','caption','Capture','cas','catdir','categorize','categorize-list',
+ 'catfile','catpath','cause','ceiling','cglobal','changed','Channel',
+ 'chars','chdir','child','child-name','child-typename','chmod','chomp',
+ 'chop','chr','chrs','chunks','cis','classify','classify-list','cleanup',
+ 'clone','close','closed','close-stdin','cmp-ok','code','codes','collate',
+ 'column','comb','combinations','command','comment','compiler','Complex',
+ 'compose','compose_type','composer','condition','config',
+ 'configure_destroy','configure_type_checking','conj','connect',
+ 'constraints','construct','contains','contents','copy','cos','cosec',
+ 'cosech','cosh','cotan','cotanh','count','count-only','cpu-cores',
+ 'cpu-usage','CREATE','create_type','cross','cue','curdir','curupdir','d',
+ 'Date','DateTime','day','daycount','day-of-month','day-of-week',
+ 'day-of-year','days-in-month','declaration','decode','decoder','deepmap',
+ 'default','defined','DEFINITE','delayed','DELETE-KEY','DELETE-POS',
+ 'denominator','desc','DESTROY','destroyers','devnull','diag',
+ 'did-you-mean','die','dies-ok','dir','dirname','dir-sep','DISTROnames',
+ 'do','does','does-ok','done','done-testing','duckmap','dynamic','e',
+ 'eager','earlier','elems','emit','enclosing','encode','encoder',
+ 'encoding','end','ends-with','enum_from_value','enum_value_list',
+ 'enum_values','enums','eof','EVAL','eval-dies-ok','EVALFILE',
+ 'eval-lives-ok','exception','excludes-max','excludes-min','EXISTS-KEY',
+ 'EXISTS-POS','exit','exitcode','exp','expected','explicitly-manage',
+ 'expmod','extension','f','fail','fails-like','fc','feature','file',
+ 'filename','find_method','find_method_qualified','finish','first','flat',
+ 'flatmap','flip','floor','flunk','flush','fmt','format','formatter',
+ 'freeze','from','from-list','from-loop','from-posix','full',
+ 'full-barrier','get','get_value','getc','gist','got','grab','grabpairs',
+ 'grep','handle','handled','handles','hardware','has_accessor','Hash',
+ 'head','headers','hh-mm-ss','hidden','hides','hour','how','hyper','id',
+ 'illegal','im','in','indent','index','indices','indir','infinite',
+ 'infix','infix:<+>','infix:<->','install_method_cache','Instant',
+ 'instead','Int','int-bounds','interval','in-timezone','invalid-str',
+ 'invert','invocant','IO','IO::Notification.watch-path','is_trusted',
+ 'is_type','isa','is-absolute','isa-ok','is-approx','is-deeply',
+ 'is-hidden','is-initial-thread','is-int','is-lazy','is-leap-year',
+ 'isNaN','isnt','is-prime','is-relative','is-routine','is-setting',
+ 'is-win','item','iterator','join','keep','kept','KERNELnames','key',
+ 'keyof','keys','kill','kv','kxxv','l','lang','last','lastcall','later',
+ 'lazy','lc','leading','level','like','line','lines','link','List',
+ 'listen','live','lives-ok','local','lock','log','log10','lookup','lsb',
+ 'made','MAIN','make','Map','match','max','maxpairs','merge','message',
+ 'method','method_table','methods','migrate','min','minmax','minpairs',
+ 'minute','misplaced','Mix','MixHash','mkdir','mode','modified','month',
+ 'move','mro','msb','multi','multiness','my','name','named','named_names',
+ 'narrow','nativecast','native-descriptor','nativesizeof','new','new_type',
+ 'new-from-daycount','new-from-pairs','next','nextcallee','next-handle',
+ 'nextsame','nextwith','NFC','NFD','NFKC','NFKD','nl-in','nl-out',
+ 'nodemap','nok','none','norm','not','note','now','nude','Num',
+ 'numerator','Numeric','of','offset','offset-in-hours','offset-in-minutes',
+ 'ok','old','on-close','one','on-switch','open','opened','operation',
+ 'optional','ord','ords','orig','os-error','osname','out-buffer','pack',
+ 'package','package-kind','package-name','packages','pair','pairs',
+ 'pairup','parameter','params','parent','parent-name','parents','parse',
+ 'parse-base','parsefile','parse-names','parts','pass','path','path-sep',
+ 'payload','peer-host','peer-port','periods','perl','permutations','phaser',
+ 'pick','pickpairs','pid','placeholder','plan','plus','polar','poll',
+ 'polymod','pop','pos','positional','posix','postfix','postmatch',
+ 'precomp-ext','precomp-target','pred','prefix','prematch','prepend',
+ 'print','printf','print-nl','print-to','private','private_method_table',
+ 'proc','produce','Promise','prompt','protect','pull-one','push',
+ 'push-all','push-at-least','push-exactly','push-until-lazy','put',
+ 'qualifier-type','quit','r','race','radix','rand','range','Rat','raw',
+ 're','read','readchars','readonly','ready','Real','reallocate','reals',
+ 'reason','rebless','receive','recv','redispatcher','redo','reduce',
+ 'rel2abs','relative','release','rename','repeated','replacement',
+ 'report','reserved','resolve','restore','result','resume','rethrow',
+ 'reverse','right','rindex','rmdir','role','roles_to_compose','rolish',
+ 'roll','rootdir','roots','rotate','rotor','round','roundrobin',
+ 'routine-type','run','rwx','s','samecase','samemark','samewith','say',
+ 'schedule-on','scheduler','scope','sec','sech','second','seek','self',
+ 'send','Set','set_hidden','set_name','set_package','set_rw','set_value',
+ 'SetHash','set-instruments','setup_finalization','shape','share','shell',
+ 'shift','sibling','sigil','sign','signal','signals','signature','sin',
+ 'sinh','sink','sink-all','skip','skip-at-least','skip-at-least-pull-one',
+ 'skip-one','skip-rest','sleep','sleep-timer','sleep-until','Slip','slurp',
+ 'slurp-rest','slurpy','snap','snapper','so','socket-host','socket-port',
+ 'sort','source','source-package','spawn','SPEC','splice','split',
+ 'splitdir','splitpath','sprintf','spurt','sqrt','squish','srand','stable',
+ 'start','started','starts-with','status','stderr','stdout','Str',
+ 'sub_signature','subbuf','subbuf-rw','subname','subparse','subst',
+ 'subst-mutate','substr','substr-eq','substr-rw','subtest','succ','sum',
+ 'Supply','symlink','t','tail','take','take-rw','tan','tanh','tap',
+ 'target','target-name','tc','tclc','tell','then','throttle','throw',
+ 'throws-like','timezone','tmpdir','to','today','todo','toggle','to-posix',
+ 'total','trailing','trans','tree','trim','trim-leading','trim-trailing',
+ 'truncate','truncated-to','trusts','try_acquire','trying','twigil','type',
+ 'type_captures','typename','uc','udp','uncaught_handler','unimatch',
+ 'uniname','uninames','uniparse','uniprop','uniprops','unique','unival',
+ 'univals','unlike','unlink','unlock','unpack','unpolar','unshift',
+ 'unwrap','updir','USAGE','use-ok','utc','val','value','values','VAR',
+ 'variable','verbose-config','version','VMnames','volume','vow','w','wait',
+ 'warn','watch','watch-path','week','weekday-of-month','week-number',
+ 'week-year','WHAT','when','WHERE','WHEREFORE','WHICH','WHO',
+ 'whole-second','WHY','wordcase','words','workaround','wrap','write',
+ 'write-to','x','yada','year','yield','yyyy-mm-dd','z','zip','zip-latest',
+
+ )
+
+ PERL6_BUILTIN_CLASSES = (
+ #Booleans
+ 'False','True',
+ #Classes
+ 'Any','Array','Associative','AST','atomicint','Attribute','Backtrace',
+ 'Backtrace::Frame','Bag','Baggy','BagHash','Blob','Block','Bool','Buf',
+ 'Callable','CallFrame','Cancellation','Capture','CArray','Channel','Code',
+ 'compiler','Complex','ComplexStr','Cool','CurrentThreadScheduler',
+ 'Cursor','Date','Dateish','DateTime','Distro','Duration','Encoding',
+ 'Exception','Failure','FatRat','Grammar','Hash','HyperWhatever','Instant',
+ 'Int','int16','int32','int64','int8','IntStr','IO','IO::ArgFiles',
+ 'IO::CatHandle','IO::Handle','IO::Notification','IO::Path',
+ 'IO::Path::Cygwin','IO::Path::QNX','IO::Path::Unix','IO::Path::Win32',
+ 'IO::Pipe','IO::Socket','IO::Socket::Async','IO::Socket::INET','IO::Spec',
+ 'IO::Spec::Cygwin','IO::Spec::QNX','IO::Spec::Unix','IO::Spec::Win32',
+ 'IO::Special','Iterable','Iterator','Junction','Kernel','Label','List',
+ 'Lock','Lock::Async','long','longlong','Macro','Map','Match',
+ 'Metamodel::AttributeContainer','Metamodel::C3MRO','Metamodel::ClassHOW',
+ 'Metamodel::EnumHOW','Metamodel::Finalization','Metamodel::MethodContainer',
+ 'Metamodel::MROBasedMethodDispatch','Metamodel::MultipleInheritance',
+ 'Metamodel::Naming','Metamodel::Primitives','Metamodel::PrivateMethodContainer',
+ 'Metamodel::RoleContainer','Metamodel::Trusting','Method','Mix','MixHash',
+ 'Mixy','Mu','NFC','NFD','NFKC','NFKD','Nil','Num','num32','num64',
+ 'Numeric','NumStr','ObjAt','Order','Pair','Parameter','Perl','Pod::Block',
+ 'Pod::Block::Code','Pod::Block::Comment','Pod::Block::Declarator',
+ 'Pod::Block::Named','Pod::Block::Para','Pod::Block::Table','Pod::Heading',
+ 'Pod::Item','Pointer','Positional','PositionalBindFailover','Proc',
+ 'Proc::Async','Promise','Proxy','PseudoStash','QuantHash','Range','Rat',
+ 'Rational','RatStr','Real','Regex','Routine','Scalar','Scheduler',
+ 'Semaphore','Seq','Set','SetHash','Setty','Signature','size_t','Slip',
+ 'Stash','Str','StrDistance','Stringy','Sub','Submethod','Supplier',
+ 'Supplier::Preserving','Supply','Systemic','Tap','Telemetry',
+ 'Telemetry::Instrument::Thread','Telemetry::Instrument::Usage',
+ 'Telemetry::Period','Telemetry::Sampler','Thread','ThreadPoolScheduler',
+ 'UInt','uint16','uint32','uint64','uint8','Uni','utf8','Variable',
+ 'Version','VM','Whatever','WhateverCode','WrapHandle'
+ )
+
+ PERL6_OPERATORS = (
+ 'X', 'Z', 'after', 'also', 'and', 'andthen', 'before', 'cmp', 'div',
+ 'eq', 'eqv', 'extra', 'ff', 'fff', 'ge', 'gt', 'le', 'leg', 'lt', 'm',
+ 'mm', 'mod', 'ne', 'or', 'orelse', 'rx', 's', 'tr', 'x', 'xor', 'xx',
+ '++', '--', '**', '!', '+', '-', '~', '?', '|', '||', '+^', '~^', '?^',
+ '^', '*', '/', '%', '%%', '+&', '+<', '+>', '~&', '~<', '~>', '?&',
+ 'gcd', 'lcm', '+', '-', '+|', '+^', '~|', '~^', '?|', '?^',
+ '~', '&', '^', 'but', 'does', '<=>', '..', '..^', '^..', '^..^',
+ '!=', '==', '<', '<=', '>', '>=', '~~', '===', '!eqv',
+ '&&', '||', '^^', '//', 'min', 'max', '??', '!!', 'ff', 'fff', 'so',
+ 'not', '<==', '==>', '<<==', '==>>','unicmp',
+ )
+
+ # Perl 6 has a *lot* of possible bracketing characters
+ # this list was lifted from STD.pm6 (https://github.com/perl6/std)
+ PERL6_BRACKETS = {
+ '\u0028': '\u0029', '\u003c': '\u003e', '\u005b': '\u005d',
+ '\u007b': '\u007d', '\u00ab': '\u00bb', '\u0f3a': '\u0f3b',
+ '\u0f3c': '\u0f3d', '\u169b': '\u169c', '\u2018': '\u2019',
+ '\u201a': '\u2019', '\u201b': '\u2019', '\u201c': '\u201d',
+ '\u201e': '\u201d', '\u201f': '\u201d', '\u2039': '\u203a',
+ '\u2045': '\u2046', '\u207d': '\u207e', '\u208d': '\u208e',
+ '\u2208': '\u220b', '\u2209': '\u220c', '\u220a': '\u220d',
+ '\u2215': '\u29f5', '\u223c': '\u223d', '\u2243': '\u22cd',
+ '\u2252': '\u2253', '\u2254': '\u2255', '\u2264': '\u2265',
+ '\u2266': '\u2267', '\u2268': '\u2269', '\u226a': '\u226b',
+ '\u226e': '\u226f', '\u2270': '\u2271', '\u2272': '\u2273',
+ '\u2274': '\u2275', '\u2276': '\u2277', '\u2278': '\u2279',
+ '\u227a': '\u227b', '\u227c': '\u227d', '\u227e': '\u227f',
+ '\u2280': '\u2281', '\u2282': '\u2283', '\u2284': '\u2285',
+ '\u2286': '\u2287', '\u2288': '\u2289', '\u228a': '\u228b',
+ '\u228f': '\u2290', '\u2291': '\u2292', '\u2298': '\u29b8',
+ '\u22a2': '\u22a3', '\u22a6': '\u2ade', '\u22a8': '\u2ae4',
+ '\u22a9': '\u2ae3', '\u22ab': '\u2ae5', '\u22b0': '\u22b1',
+ '\u22b2': '\u22b3', '\u22b4': '\u22b5', '\u22b6': '\u22b7',
+ '\u22c9': '\u22ca', '\u22cb': '\u22cc', '\u22d0': '\u22d1',
+ '\u22d6': '\u22d7', '\u22d8': '\u22d9', '\u22da': '\u22db',
+ '\u22dc': '\u22dd', '\u22de': '\u22df', '\u22e0': '\u22e1',
+ '\u22e2': '\u22e3', '\u22e4': '\u22e5', '\u22e6': '\u22e7',
+ '\u22e8': '\u22e9', '\u22ea': '\u22eb', '\u22ec': '\u22ed',
+ '\u22f0': '\u22f1', '\u22f2': '\u22fa', '\u22f3': '\u22fb',
+ '\u22f4': '\u22fc', '\u22f6': '\u22fd', '\u22f7': '\u22fe',
+ '\u2308': '\u2309', '\u230a': '\u230b', '\u2329': '\u232a',
+ '\u23b4': '\u23b5', '\u2768': '\u2769', '\u276a': '\u276b',
+ '\u276c': '\u276d', '\u276e': '\u276f', '\u2770': '\u2771',
+ '\u2772': '\u2773', '\u2774': '\u2775', '\u27c3': '\u27c4',
+ '\u27c5': '\u27c6', '\u27d5': '\u27d6', '\u27dd': '\u27de',
+ '\u27e2': '\u27e3', '\u27e4': '\u27e5', '\u27e6': '\u27e7',
+ '\u27e8': '\u27e9', '\u27ea': '\u27eb', '\u2983': '\u2984',
+ '\u2985': '\u2986', '\u2987': '\u2988', '\u2989': '\u298a',
+ '\u298b': '\u298c', '\u298d': '\u298e', '\u298f': '\u2990',
+ '\u2991': '\u2992', '\u2993': '\u2994', '\u2995': '\u2996',
+ '\u2997': '\u2998', '\u29c0': '\u29c1', '\u29c4': '\u29c5',
+ '\u29cf': '\u29d0', '\u29d1': '\u29d2', '\u29d4': '\u29d5',
+ '\u29d8': '\u29d9', '\u29da': '\u29db', '\u29f8': '\u29f9',
+ '\u29fc': '\u29fd', '\u2a2b': '\u2a2c', '\u2a2d': '\u2a2e',
+ '\u2a34': '\u2a35', '\u2a3c': '\u2a3d', '\u2a64': '\u2a65',
+ '\u2a79': '\u2a7a', '\u2a7d': '\u2a7e', '\u2a7f': '\u2a80',
+ '\u2a81': '\u2a82', '\u2a83': '\u2a84', '\u2a8b': '\u2a8c',
+ '\u2a91': '\u2a92', '\u2a93': '\u2a94', '\u2a95': '\u2a96',
+ '\u2a97': '\u2a98', '\u2a99': '\u2a9a', '\u2a9b': '\u2a9c',
+ '\u2aa1': '\u2aa2', '\u2aa6': '\u2aa7', '\u2aa8': '\u2aa9',
+ '\u2aaa': '\u2aab', '\u2aac': '\u2aad', '\u2aaf': '\u2ab0',
+ '\u2ab3': '\u2ab4', '\u2abb': '\u2abc', '\u2abd': '\u2abe',
+ '\u2abf': '\u2ac0', '\u2ac1': '\u2ac2', '\u2ac3': '\u2ac4',
+ '\u2ac5': '\u2ac6', '\u2acd': '\u2ace', '\u2acf': '\u2ad0',
+ '\u2ad1': '\u2ad2', '\u2ad3': '\u2ad4', '\u2ad5': '\u2ad6',
+ '\u2aec': '\u2aed', '\u2af7': '\u2af8', '\u2af9': '\u2afa',
+ '\u2e02': '\u2e03', '\u2e04': '\u2e05', '\u2e09': '\u2e0a',
+ '\u2e0c': '\u2e0d', '\u2e1c': '\u2e1d', '\u2e20': '\u2e21',
+ '\u3008': '\u3009', '\u300a': '\u300b', '\u300c': '\u300d',
+ '\u300e': '\u300f', '\u3010': '\u3011', '\u3014': '\u3015',
+ '\u3016': '\u3017', '\u3018': '\u3019', '\u301a': '\u301b',
+ '\u301d': '\u301e', '\ufd3e': '\ufd3f', '\ufe17': '\ufe18',
+ '\ufe35': '\ufe36', '\ufe37': '\ufe38', '\ufe39': '\ufe3a',
+ '\ufe3b': '\ufe3c', '\ufe3d': '\ufe3e', '\ufe3f': '\ufe40',
+ '\ufe41': '\ufe42', '\ufe43': '\ufe44', '\ufe47': '\ufe48',
+ '\ufe59': '\ufe5a', '\ufe5b': '\ufe5c', '\ufe5d': '\ufe5e',
+ '\uff08': '\uff09', '\uff1c': '\uff1e', '\uff3b': '\uff3d',
+ '\uff5b': '\uff5d', '\uff5f': '\uff60', '\uff62': '\uff63',
+ }
+
+ def _build_word_match(words, boundary_regex_fragment=None, prefix='', suffix=''):
+ if boundary_regex_fragment is None:
+ return r'\b(' + prefix + r'|'.join(re.escape(x) for x in words) + \
+ suffix + r')\b'
+ else:
+ return r'(?<!' + boundary_regex_fragment + r')' + prefix + r'(' + \
+ r'|'.join(re.escape(x) for x in words) + r')' + suffix + r'(?!' + \
+ boundary_regex_fragment + r')'
+
+ def brackets_callback(token_class):
+ def callback(lexer, match, context):
+ groups = match.groupdict()
+ opening_chars = groups['delimiter']
+ n_chars = len(opening_chars)
+ adverbs = groups.get('adverbs')
+
+ closer = Perl6Lexer.PERL6_BRACKETS.get(opening_chars[0])
+ text = context.text
+
+ if closer is None: # it's not a mirrored character, which means we
+ # just need to look for the next occurrence
+
+ end_pos = text.find(opening_chars, match.start('delimiter') + n_chars)
+ else: # we need to look for the corresponding closing character,
+ # keep nesting in mind
+ closing_chars = closer * n_chars
+ nesting_level = 1
+
+ search_pos = match.start('delimiter')
+
+ while nesting_level > 0:
+ next_open_pos = text.find(opening_chars, search_pos + n_chars)
+ next_close_pos = text.find(closing_chars, search_pos + n_chars)
+
+ if next_close_pos == -1:
+ next_close_pos = len(text)
+ nesting_level = 0
+ elif next_open_pos != -1 and next_open_pos < next_close_pos:
+ nesting_level += 1
+ search_pos = next_open_pos
+ else: # next_close_pos < next_open_pos
+ nesting_level -= 1
+ search_pos = next_close_pos
+
+ end_pos = next_close_pos
+
+ if end_pos < 0: # if we didn't find a closer, just highlight the
+ # rest of the text in this class
+ end_pos = len(text)
+
+ if adverbs is not None and re.search(r':to\b', adverbs):
+ heredoc_terminator = text[match.start('delimiter') + n_chars:end_pos]
+ end_heredoc = re.search(r'^\s*' + re.escape(heredoc_terminator) +
+ r'\s*$', text[end_pos:], re.MULTILINE)
+
+ if end_heredoc:
+ end_pos += end_heredoc.end()
+ else:
+ end_pos = len(text)
+
+ yield match.start(), token_class, text[match.start():end_pos + n_chars]
+ context.pos = end_pos + n_chars
+
+ return callback
+
+ def opening_brace_callback(lexer, match, context):
+ stack = context.stack
+
+ yield match.start(), Text, context.text[match.start():match.end()]
+ context.pos = match.end()
+
+ # if we encounter an opening brace and we're one level
+ # below a token state, it means we need to increment
+ # the nesting level for braces so we know later when
+ # we should return to the token rules.
+ if len(stack) > 2 and stack[-2] == 'token':
+ context.perl6_token_nesting_level += 1
+
+ def closing_brace_callback(lexer, match, context):
+ stack = context.stack
+
+ yield match.start(), Text, context.text[match.start():match.end()]
+ context.pos = match.end()
+
+ # if we encounter a free closing brace and we're one level
+ # below a token state, it means we need to check the nesting
+ # level to see if we need to return to the token state.
+ if len(stack) > 2 and stack[-2] == 'token':
+ context.perl6_token_nesting_level -= 1
+ if context.perl6_token_nesting_level == 0:
+ stack.pop()
+
+ def embedded_perl6_callback(lexer, match, context):
+ context.perl6_token_nesting_level = 1
+ yield match.start(), Text, context.text[match.start():match.end()]
+ context.pos = match.end()
+ context.stack.append('root')
+
+ # If you're modifying these rules, be careful if you need to process '{' or '}'
+ # characters. We have special logic for processing these characters (due to the fact
+ # that you can nest Perl 6 code in regex blocks), so if you need to process one of
+ # them, make sure you also process the corresponding one!
+ tokens = {
+ 'common': [
+ (r'#[`|=](?P<delimiter>(?P<first_char>[' + ''.join(PERL6_BRACKETS) + r'])(?P=first_char)*)',
+ brackets_callback(Comment.Multiline)),
+ (r'#[^\n]*$', Comment.Single),
+ (r'^(\s*)=begin\s+(\w+)\b.*?^\1=end\s+\2', Comment.Multiline),
+ (r'^(\s*)=for.*?\n\s*?\n', Comment.Multiline),
+ (r'^=.*?\n\s*?\n', Comment.Multiline),
+ (r'(regex|token|rule)(\s*' + PERL6_IDENTIFIER_RANGE + '+:sym)',
+ bygroups(Keyword, Name), 'token-sym-brackets'),
+ (r'(regex|token|rule)(?!' + PERL6_IDENTIFIER_RANGE + r')(\s*' + PERL6_IDENTIFIER_RANGE + '+)?',
+ bygroups(Keyword, Name), 'pre-token'),
+ # deal with a special case in the Perl 6 grammar (role q { ... })
+ (r'(role)(\s+)(q)(\s*)', bygroups(Keyword, Text, Name, Text)),
+ (_build_word_match(PERL6_KEYWORDS, PERL6_IDENTIFIER_RANGE), Keyword),
+ (_build_word_match(PERL6_BUILTIN_CLASSES, PERL6_IDENTIFIER_RANGE, suffix='(?::[UD])?'),
+ Name.Builtin),
+ (_build_word_match(PERL6_BUILTINS, PERL6_IDENTIFIER_RANGE), Name.Builtin),
+ # copied from PerlLexer
+ (r'[$@%&][.^:?=!~]?' + PERL6_IDENTIFIER_RANGE + '+(?:<<.*?>>|<.*?>|«.*?»)*',
+ Name.Variable),
+ (r'\$[!/](?:<<.*?>>|<.*?>|«.*?»)*', Name.Variable.Global),
+ (r'::\?\w+', Name.Variable.Global),
+ (r'[$@%&]\*' + PERL6_IDENTIFIER_RANGE + '+(?:<<.*?>>|<.*?>|«.*?»)*',
+ Name.Variable.Global),
+ (r'\$(?:<.*?>)+', Name.Variable),
+ (r'(?:q|qq|Q)[a-zA-Z]?\s*(?P<adverbs>:[\w\s:]+)?\s*(?P<delimiter>(?P<first_char>[^0-9a-zA-Z:\s])'
+ r'(?P=first_char)*)', brackets_callback(String)),
+ # copied from PerlLexer
+ (r'0_?[0-7]+(_[0-7]+)*', Number.Oct),
+ (r'0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*', Number.Hex),
+ (r'0b[01]+(_[01]+)*', Number.Bin),
+ (r'(?i)(\d*(_\d*)*\.\d+(_\d*)*|\d+(_\d*)*\.\d+(_\d*)*)(e[+-]?\d+)?',
+ Number.Float),
+ (r'(?i)\d+(_\d*)*e[+-]?\d+(_\d*)*', Number.Float),
+ (r'\d+(_\d+)*', Number.Integer),
+ (r'(?<=~~)\s*/(?:\\\\|\\/|.)*?/', String.Regex),
+ (r'(?<=[=(,])\s*/(?:\\\\|\\/|.)*?/', String.Regex),
+ (r'm\w+(?=\()', Name),
+ (r'(?:m|ms|rx)\s*(?P<adverbs>:[\w\s:]+)?\s*(?P<delimiter>(?P<first_char>[^\w:\s])'
+ r'(?P=first_char)*)', brackets_callback(String.Regex)),
+ (r'(?:s|ss|tr)\s*(?::[\w\s:]+)?\s*/(?:\\\\|\\/|.)*?/(?:\\\\|\\/|.)*?/',
+ String.Regex),
+ (r'<[^\s=].*?\S>', String),
+ (_build_word_match(PERL6_OPERATORS), Operator),
+ (r'\w' + PERL6_IDENTIFIER_RANGE + '*', Name),
+ (r"'(\\\\|\\[^\\]|[^'\\])*'", String),
+ (r'"(\\\\|\\[^\\]|[^"\\])*"', String),
+ ],
+ 'root': [
+ include('common'),
+ (r'\{', opening_brace_callback),
+ (r'\}', closing_brace_callback),
+ (r'.+?', Text),
+ ],
+ 'pre-token': [
+ include('common'),
+ (r'\{', Text, ('#pop', 'token')),
+ (r'.+?', Text),
+ ],
+ 'token-sym-brackets': [
+ (r'(?P<delimiter>(?P<first_char>[' + ''.join(PERL6_BRACKETS) + '])(?P=first_char)*)',
+ brackets_callback(Name), ('#pop', 'pre-token')),
+ default(('#pop', 'pre-token')),
+ ],
+ 'token': [
+ (r'\}', Text, '#pop'),
+ (r'(?<=:)(?:my|our|state|constant|temp|let).*?;', using(this)),
+ # make sure that quotes in character classes aren't treated as strings
+ (r'<(?:[-!?+.]\s*)?\[.*?\]>', String.Regex),
+ # make sure that '#' characters in quotes aren't treated as comments
+ (r"(?<!\\)'(\\\\|\\[^\\]|[^'\\])*'", String.Regex),
+ (r'(?<!\\)"(\\\\|\\[^\\]|[^"\\])*"', String.Regex),
+ (r'#.*?$', Comment.Single),
+ (r'\{', embedded_perl6_callback),
+ ('.+?', String.Regex),
+ ],
+ }
+
+ def analyse_text(text):
+ def strip_pod(lines):
+ in_pod = False
+ stripped_lines = []
+
+ for line in lines:
+ if re.match(r'^=(?:end|cut)', line):
+ in_pod = False
+ elif re.match(r'^=\w+', line):
+ in_pod = True
+ elif not in_pod:
+ stripped_lines.append(line)
+
+ return stripped_lines
+
+ # XXX handle block comments
+ lines = text.splitlines()
+ lines = strip_pod(lines)
+ text = '\n'.join(lines)
+
+ if shebang_matches(text, r'perl6|rakudo|niecza|pugs'):
+ return True
+
+ saw_perl_decl = False
+ rating = False
+
+ # check for my/our/has declarations
+ if re.search(r"(?:my|our|has)\s+(?:" + Perl6Lexer.PERL6_IDENTIFIER_RANGE +
+ r"+\s+)?[$@%&(]", text):
+ rating = 0.8
+ saw_perl_decl = True
+
+ for line in lines:
+ line = re.sub('#.*', '', line)
+ if re.match(r'^\s*$', line):
+ continue
+
+ # match v6; use v6; use v6.0; use v6.0.0;
+ if re.match(r'^\s*(?:use\s+)?v6(?:\.\d(?:\.\d)?)?;', line):
+ return True
+ # match class, module, role, enum, grammar declarations
+ class_decl = re.match(r'^\s*(?:(?P<scope>my|our)\s+)?(?:module|class|role|enum|grammar)', line)
+ if class_decl:
+ if saw_perl_decl or class_decl.group('scope') is not None:
+ return True
+ rating = 0.05
+ continue
+ break
+
+ if ':=' in text:
+ # Same logic as above for PerlLexer
+ rating /= 2
+
+ return rating
+
+ def __init__(self, **options):
+ super().__init__(**options)
+ self.encoding = options.get('encoding', 'utf-8')
