615 lines
31 KiB
Python
615 lines
31 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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pygments.lexers.perl
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~~~~~~~~~~~~~~~~~~~~
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Lexers for Perl and related languages.
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:copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import re
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from pygments.lexer import RegexLexer, ExtendedRegexLexer, include, bygroups, \
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using, this, default, words
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from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
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Number, Punctuation
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from pygments.util import shebang_matches
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__all__ = ['PerlLexer', 'Perl6Lexer']
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class PerlLexer(RegexLexer):
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"""
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For `Perl <http://www.perl.org>`_ source code.
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"""
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name = 'Perl'
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aliases = ['perl', 'pl']
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filenames = ['*.pl', '*.pm', '*.t']
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mimetypes = ['text/x-perl', 'application/x-perl']
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flags = re.DOTALL | re.MULTILINE
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# TODO: give this to a perl guy who knows how to parse perl...
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tokens = {
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'balanced-regex': [
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(r'/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*', String.Regex, '#pop'),
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(r'!(\\\\|\\[^\\]|[^\\!])*![egimosx]*', String.Regex, '#pop'),
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(r'\\(\\\\|[^\\])*\\[egimosx]*', String.Regex, '#pop'),
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(r'\{(\\\\|\\[^\\]|[^\\}])*\}[egimosx]*', String.Regex, '#pop'),
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(r'<(\\\\|\\[^\\]|[^\\>])*>[egimosx]*', String.Regex, '#pop'),
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(r'\[(\\\\|\\[^\\]|[^\\\]])*\][egimosx]*', String.Regex, '#pop'),
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(r'\((\\\\|\\[^\\]|[^\\)])*\)[egimosx]*', String.Regex, '#pop'),
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(r'@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*', String.Regex, '#pop'),
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(r'%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*', String.Regex, '#pop'),
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(r'\$(\\\\|\\[^\\]|[^\\$])*\$[egimosx]*', String.Regex, '#pop'),
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],
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'root': [
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(r'\#.*?$', Comment.Single),
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(r'^=[a-zA-Z0-9]+\s+.*?\n=cut', Comment.Multiline),
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(words((
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'case', 'continue', 'do', 'else', 'elsif', 'for', 'foreach',
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'if', 'last', 'my', 'next', 'our', 'redo', 'reset', 'then',
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'unless', 'until', 'while', 'use', 'print', 'new', 'BEGIN',
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'CHECK', 'INIT', 'END', 'return'), suffix=r'\b'),
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Keyword),
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(r'(format)(\s+)(\w+)(\s*)(=)(\s*\n)',
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bygroups(Keyword, Text, Name, Text, Punctuation, Text), 'format'),
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(r'(eq|lt|gt|le|ge|ne|not|and|or|cmp)\b', Operator.Word),
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# common delimiters
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(r's/(\\\\|\\[^\\]|[^\\/])*/(\\\\|\\[^\\]|[^\\/])*/[egimosx]*',
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String.Regex),
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(r's!(\\\\|\\!|[^!])*!(\\\\|\\!|[^!])*![egimosx]*', String.Regex),
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(r's\\(\\\\|[^\\])*\\(\\\\|[^\\])*\\[egimosx]*', String.Regex),
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(r's@(\\\\|\\[^\\]|[^\\@])*@(\\\\|\\[^\\]|[^\\@])*@[egimosx]*',
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String.Regex),
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(r's%(\\\\|\\[^\\]|[^\\%])*%(\\\\|\\[^\\]|[^\\%])*%[egimosx]*',
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String.Regex),
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# balanced delimiters
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(r's\{(\\\\|\\[^\\]|[^\\}])*\}\s*', String.Regex, 'balanced-regex'),
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(r's<(\\\\|\\[^\\]|[^\\>])*>\s*', String.Regex, 'balanced-regex'),
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(r's\[(\\\\|\\[^\\]|[^\\\]])*\]\s*', String.Regex,
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'balanced-regex'),
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(r's\((\\\\|\\[^\\]|[^\\)])*\)\s*', String.Regex,
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'balanced-regex'),
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(r'm?/(\\\\|\\[^\\]|[^\\/\n])*/[gcimosx]*', String.Regex),
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(r'm(?=[/!\\{<\[(@%$])', String.Regex, 'balanced-regex'),
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(r'((?<==~)|(?<=\())\s*/(\\\\|\\[^\\]|[^\\/])*/[gcimosx]*',
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String.Regex),
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(r'\s+', Text),
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(words((
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'abs', 'accept', 'alarm', 'atan2', 'bind', 'binmode', 'bless', 'caller', 'chdir',
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'chmod', 'chomp', 'chop', 'chown', 'chr', 'chroot', 'close', 'closedir', 'connect',
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'continue', 'cos', 'crypt', 'dbmclose', 'dbmopen', 'defined', 'delete', 'die',
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'dump', 'each', 'endgrent', 'endhostent', 'endnetent', 'endprotoent',
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'endpwent', 'endservent', 'eof', 'eval', 'exec', 'exists', 'exit', 'exp', 'fcntl',
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'fileno', 'flock', 'fork', 'format', 'formline', 'getc', 'getgrent', 'getgrgid',
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'getgrnam', 'gethostbyaddr', 'gethostbyname', 'gethostent', 'getlogin',
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'getnetbyaddr', 'getnetbyname', 'getnetent', 'getpeername', 'getpgrp',
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'getppid', 'getpriority', 'getprotobyname', 'getprotobynumber',
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'getprotoent', 'getpwent', 'getpwnam', 'getpwuid', 'getservbyname',
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'getservbyport', 'getservent', 'getsockname', 'getsockopt', 'glob', 'gmtime',
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'goto', 'grep', 'hex', 'import', 'index', 'int', 'ioctl', 'join', 'keys', 'kill', 'last',
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'lc', 'lcfirst', 'length', 'link', 'listen', 'local', 'localtime', 'log', 'lstat',
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'map', 'mkdir', 'msgctl', 'msgget', 'msgrcv', 'msgsnd', 'my', 'next', 'no', 'oct', 'open',
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'opendir', 'ord', 'our', 'pack', 'package', 'pipe', 'pop', 'pos', 'printf',
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'prototype', 'push', 'quotemeta', 'rand', 'read', 'readdir',
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'readline', 'readlink', 'readpipe', 'recv', 'redo', 'ref', 'rename', 'require',
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'reverse', 'rewinddir', 'rindex', 'rmdir', 'scalar', 'seek', 'seekdir',
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'select', 'semctl', 'semget', 'semop', 'send', 'setgrent', 'sethostent', 'setnetent',
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'setpgrp', 'setpriority', 'setprotoent', 'setpwent', 'setservent',
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'setsockopt', 'shift', 'shmctl', 'shmget', 'shmread', 'shmwrite', 'shutdown',
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'sin', 'sleep', 'socket', 'socketpair', 'sort', 'splice', 'split', 'sprintf', 'sqrt',
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'srand', 'stat', 'study', 'substr', 'symlink', 'syscall', 'sysopen', 'sysread',
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'sysseek', 'system', 'syswrite', 'tell', 'telldir', 'tie', 'tied', 'time', 'times', 'tr',
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'truncate', 'uc', 'ucfirst', 'umask', 'undef', 'unlink', 'unpack', 'unshift', 'untie',
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'utime', 'values', 'vec', 'wait', 'waitpid', 'wantarray', 'warn', 'write'), suffix=r'\b'),
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Name.Builtin),
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(r'((__(DATA|DIE|WARN)__)|(STD(IN|OUT|ERR)))\b', Name.Builtin.Pseudo),
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(r'<<([\'"]?)([a-zA-Z_]\w*)\1;?\n.*?\n\2\n', String),
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(r'__END__', Comment.Preproc, 'end-part'),
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(r'\$\^[ADEFHILMOPSTWX]', Name.Variable.Global),
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(r"\$[\\\"\[\]'&`+*.,;=%~?@$!<>(^|/-](?!\w)", Name.Variable.Global),
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(r'[$@%#]+', Name.Variable, 'varname'),
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(r'0_?[0-7]+(_[0-7]+)*', Number.Oct),
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(r'0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*', Number.Hex),
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(r'0b[01]+(_[01]+)*', Number.Bin),
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(r'(?i)(\d*(_\d*)*\.\d+(_\d*)*|\d+(_\d*)*\.\d+(_\d*)*)(e[+-]?\d+)?',
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Number.Float),
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(r'(?i)\d+(_\d*)*e[+-]?\d+(_\d*)*', Number.Float),
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(r'\d+(_\d+)*', Number.Integer),
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(r"'(\\\\|\\[^\\]|[^'\\])*'", String),
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(r'"(\\\\|\\[^\\]|[^"\\])*"', String),
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(r'`(\\\\|\\[^\\]|[^`\\])*`', String.Backtick),
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(r'<([^\s>]+)>', String.Regex),
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(r'(q|qq|qw|qr|qx)\{', String.Other, 'cb-string'),
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(r'(q|qq|qw|qr|qx)\(', String.Other, 'rb-string'),
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(r'(q|qq|qw|qr|qx)\[', String.Other, 'sb-string'),
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(r'(q|qq|qw|qr|qx)\<', String.Other, 'lt-string'),
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(r'(q|qq|qw|qr|qx)([\W_])(.|\n)*?\2', String.Other),
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(r'package\s+', Keyword, 'modulename'),
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(r'sub\s+', Keyword, 'funcname'),
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(r'(\[\]|\*\*|::|<<|>>|>=|<=>|<=|={3}|!=|=~|'
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r'!~|&&?|\|\||\.{1,3})', Operator),
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(r'[-+/*%=<>&^|!\\~]=?', Operator),
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(r'[()\[\]:;,<>/?{}]', Punctuation), # yes, there's no shortage
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# of punctuation in Perl!
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(r'(?=\w)', Name, 'name'),
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],
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'format': [
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(r'\.\n', String.Interpol, '#pop'),
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(r'[^\n]*\n', String.Interpol),
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],
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'varname': [
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(r'\s+', Text),
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(r'\{', Punctuation, '#pop'), # hash syntax?
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(r'\)|,', Punctuation, '#pop'), # argument specifier
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(r'\w+::', Name.Namespace),
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(r'[\w:]+', Name.Variable, '#pop'),
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],
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'name': [
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(r'\w+::', Name.Namespace),
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(r'[\w:]+', Name, '#pop'),
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(r'[A-Z_]+(?=\W)', Name.Constant, '#pop'),
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(r'(?=\W)', Text, '#pop'),
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],
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'modulename': [
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(r'[a-zA-Z_]\w*', Name.Namespace, '#pop')
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],
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'funcname': [
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(r'[a-zA-Z_]\w*[!?]?', Name.Function),
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(r'\s+', Text),
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# argument declaration
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(r'(\([$@%]*\))(\s*)', bygroups(Punctuation, Text)),
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(r';', Punctuation, '#pop'),
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(r'.*?\{', Punctuation, '#pop'),
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],
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'cb-string': [
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(r'\\[{}\\]', String.Other),
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(r'\\', String.Other),
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(r'\{', String.Other, 'cb-string'),
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(r'\}', String.Other, '#pop'),
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(r'[^{}\\]+', String.Other)
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],
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'rb-string': [
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(r'\\[()\\]', String.Other),
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(r'\\', String.Other),
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(r'\(', String.Other, 'rb-string'),
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(r'\)', String.Other, '#pop'),
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(r'[^()]+', String.Other)
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],
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'sb-string': [
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(r'\\[\[\]\\]', String.Other),
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(r'\\', String.Other),
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(r'\[', String.Other, 'sb-string'),
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(r'\]', String.Other, '#pop'),
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(r'[^\[\]]+', String.Other)
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],
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'lt-string': [
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(r'\\[<>\\]', String.Other),
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(r'\\', String.Other),
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(r'\<', String.Other, 'lt-string'),
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(r'\>', String.Other, '#pop'),
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(r'[^<>]+', String.Other)
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],
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'end-part': [
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(r'.+', Comment.Preproc, '#pop')
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]
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}
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def analyse_text(text):
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if shebang_matches(text, r'perl'):
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return True
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if re.search('(?:my|our)\s+[$@%(]', text):
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return 0.9
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class Perl6Lexer(ExtendedRegexLexer):
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"""
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For `Perl 6 <http://www.perl6.org>`_ source code.
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.. versionadded:: 2.0
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"""
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name = 'Perl6'
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aliases = ['perl6', 'pl6']
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filenames = ['*.pl', '*.pm', '*.nqp', '*.p6', '*.6pl', '*.p6l', '*.pl6',
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'*.6pm', '*.p6m', '*.pm6', '*.t']
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mimetypes = ['text/x-perl6', 'application/x-perl6']
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flags = re.MULTILINE | re.DOTALL | re.UNICODE
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PERL6_IDENTIFIER_RANGE = "['\w:-]"
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PERL6_KEYWORDS = (
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'BEGIN', 'CATCH', 'CHECK', 'CONTROL', 'END', 'ENTER', 'FIRST', 'INIT',
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'KEEP', 'LAST', 'LEAVE', 'NEXT', 'POST', 'PRE', 'START', 'TEMP',
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'UNDO', 'as', 'assoc', 'async', 'augment', 'binary', 'break', 'but',
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'cached', 'category', 'class', 'constant', 'contend', 'continue',
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'copy', 'deep', 'default', 'defequiv', 'defer', 'die', 'do', 'else',
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'elsif', 'enum', 'equiv', 'exit', 'export', 'fail', 'fatal', 'for',
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'gather', 'given', 'goto', 'grammar', 'handles', 'has', 'if', 'inline',
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'irs', 'is', 'last', 'leave', 'let', 'lift', 'loop', 'looser', 'macro',
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'make', 'maybe', 'method', 'module', 'multi', 'my', 'next', 'of',
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'ofs', 'only', 'oo', 'ors', 'our', 'package', 'parsed', 'prec',
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'proto', 'readonly', 'redo', 'ref', 'regex', 'reparsed', 'repeat',
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'require', 'required', 'return', 'returns', 'role', 'rule', 'rw',
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'self', 'slang', 'state', 'sub', 'submethod', 'subset', 'supersede',
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'take', 'temp', 'tighter', 'token', 'trusts', 'try', 'unary',
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'unless', 'until', 'use', 'warn', 'when', 'where', 'while', 'will',
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)
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PERL6_BUILTINS = (
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'ACCEPTS', 'HOW', 'REJECTS', 'VAR', 'WHAT', 'WHENCE', 'WHERE', 'WHICH',
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'WHO', 'abs', 'acos', 'acosec', 'acosech', 'acosh', 'acotan', 'acotanh',
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'all', 'any', 'approx', 'arity', 'asec', 'asech', 'asin', 'asinh',
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'assuming', 'atan', 'atan2', 'atanh', 'attr', 'bless', 'body', 'by',
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'bytes', 'caller', 'callsame', 'callwith', 'can', 'capitalize', 'cat',
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'ceiling', 'chars', 'chmod', 'chomp', 'chop', 'chr', 'chroot',
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'circumfix', 'cis', 'classify', 'clone', 'close', 'cmp_ok', 'codes',
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'comb', 'connect', 'contains', 'context', 'cos', 'cosec', 'cosech',
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'cosh', 'cotan', 'cotanh', 'count', 'defined', 'delete', 'diag',
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'dies_ok', 'does', 'e', 'each', 'eager', 'elems', 'end', 'eof', 'eval',
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'eval_dies_ok', 'eval_elsewhere', 'eval_lives_ok', 'evalfile', 'exists',
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'exp', 'first', 'flip', 'floor', 'flunk', 'flush', 'fmt', 'force_todo',
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'fork', 'from', 'getc', 'gethost', 'getlogin', 'getpeername', 'getpw',
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'gmtime', 'graphs', 'grep', 'hints', 'hyper', 'im', 'index', 'infix',
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'invert', 'is_approx', 'is_deeply', 'isa', 'isa_ok', 'isnt', 'iterator',
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'join', 'key', 'keys', 'kill', 'kv', 'lastcall', 'lazy', 'lc', 'lcfirst',
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'like', 'lines', 'link', 'lives_ok', 'localtime', 'log', 'log10', 'map',
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'max', 'min', 'minmax', 'name', 'new', 'nextsame', 'nextwith', 'nfc',
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'nfd', 'nfkc', 'nfkd', 'nok_error', 'nonce', 'none', 'normalize', 'not',
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'nothing', 'ok', 'once', 'one', 'open', 'opendir', 'operator', 'ord',
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'p5chomp', 'p5chop', 'pack', 'pair', 'pairs', 'pass', 'perl', 'pi',
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'pick', 'plan', 'plan_ok', 'polar', 'pop', 'pos', 'postcircumfix',
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'postfix', 'pred', 'prefix', 'print', 'printf', 'push', 'quasi',
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|
|
'quotemeta', 'rand', 're', 'read', 'readdir', 'readline', 'reduce',
|
||
|
|
'reverse', 'rewind', 'rewinddir', 'rindex', 'roots', 'round',
|
||
|
|
'roundrobin', 'run', 'runinstead', 'sameaccent', 'samecase', 'say',
|
||
|
|
'sec', 'sech', 'sech', 'seek', 'shape', 'shift', 'sign', 'signature',
|
||
|
|
'sin', 'sinh', 'skip', 'skip_rest', 'sleep', 'slurp', 'sort', 'splice',
|
||
|
|
'split', 'sprintf', 'sqrt', 'srand', 'strand', 'subst', 'substr', 'succ',
|
||
|
|
'sum', 'symlink', 'tan', 'tanh', 'throws_ok', 'time', 'times', 'to',
|
||
|
|
'todo', 'trim', 'trim_end', 'trim_start', 'true', 'truncate', 'uc',
|
||
|
|
'ucfirst', 'undef', 'undefine', 'uniq', 'unlike', 'unlink', 'unpack',
|
||
|
|
'unpolar', 'unshift', 'unwrap', 'use_ok', 'value', 'values', 'vec',
|
||
|
|
'version_lt', 'void', 'wait', 'want', 'wrap', 'write', 'zip',
|
||
|
|
)
|
||
|
|
|
||
|
|
PERL6_BUILTIN_CLASSES = (
|
||
|
|
'Abstraction', 'Any', 'AnyChar', 'Array', 'Associative', 'Bag', 'Bit',
|
||
|
|
'Blob', 'Block', 'Bool', 'Buf', 'Byte', 'Callable', 'Capture', 'Char', 'Class',
|
||
|
|
'Code', 'Codepoint', 'Comparator', 'Complex', 'Decreasing', 'Exception',
|
||
|
|
'Failure', 'False', 'Grammar', 'Grapheme', 'Hash', 'IO', 'Increasing',
|
||
|
|
'Int', 'Junction', 'KeyBag', 'KeyExtractor', 'KeyHash', 'KeySet',
|
||
|
|
'KitchenSink', 'List', 'Macro', 'Mapping', 'Match', 'Matcher', 'Method',
|
||
|
|
'Module', 'Num', 'Object', 'Ordered', 'Ordering', 'OrderingPair',
|
||
|
|
'Package', 'Pair', 'Positional', 'Proxy', 'Range', 'Rat', 'Regex',
|
||
|
|
'Role', 'Routine', 'Scalar', 'Seq', 'Set', 'Signature', 'Str', 'StrLen',
|
||
|
|
'StrPos', 'Sub', 'Submethod', 'True', 'UInt', 'Undef', 'Version', 'Void',
|
||
|
|
'Whatever', 'bit', 'bool', 'buf', 'buf1', 'buf16', 'buf2', 'buf32',
|
||
|
|
'buf4', 'buf64', 'buf8', 'complex', 'int', 'int1', 'int16', 'int2',
|
||
|
|
'int32', 'int4', 'int64', 'int8', 'num', 'rat', 'rat1', 'rat16', 'rat2',
|
||
|
|
'rat32', 'rat4', 'rat64', 'rat8', 'uint', 'uint1', 'uint16', 'uint2',
|
||
|
|
'uint32', 'uint4', 'uint64', 'uint8', 'utf16', 'utf32', 'utf8',
|
||
|
|
)
|
||
|
|
|
||
|
|
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', '<==', '==>', '<<==', '==>>',
|
||
|
|
)
|
||
|
|
|
||
|
|
# Perl 6 has a *lot* of possible bracketing characters
|
||
|
|
# this list was lifted from STD.pm6 (https://github.com/perl6/std)
|
||
|
|
PERL6_BRACKETS = {
|
||
|
|
u'\u0028': u'\u0029', u'\u003c': u'\u003e', u'\u005b': u'\u005d',
|
||
|
|
u'\u007b': u'\u007d', u'\u00ab': u'\u00bb', u'\u0f3a': u'\u0f3b',
|
||
|
|
u'\u0f3c': u'\u0f3d', u'\u169b': u'\u169c', u'\u2018': u'\u2019',
|
||
|
|
u'\u201a': u'\u2019', u'\u201b': u'\u2019', u'\u201c': u'\u201d',
|
||
|
|
u'\u201e': u'\u201d', u'\u201f': u'\u201d', u'\u2039': u'\u203a',
|
||
|
|
u'\u2045': u'\u2046', u'\u207d': u'\u207e', u'\u208d': u'\u208e',
|
||
|
|
u'\u2208': u'\u220b', u'\u2209': u'\u220c', u'\u220a': u'\u220d',
|
||
|
|
u'\u2215': u'\u29f5', u'\u223c': u'\u223d', u'\u2243': u'\u22cd',
|
||
|
|
u'\u2252': u'\u2253', u'\u2254': u'\u2255', u'\u2264': u'\u2265',
|
||
|
|
u'\u2266': u'\u2267', u'\u2268': u'\u2269', u'\u226a': u'\u226b',
|
||
|
|
u'\u226e': u'\u226f', u'\u2270': u'\u2271', u'\u2272': u'\u2273',
|
||
|
|
u'\u2274': u'\u2275', u'\u2276': u'\u2277', u'\u2278': u'\u2279',
|
||
|
|
u'\u227a': u'\u227b', u'\u227c': u'\u227d', u'\u227e': u'\u227f',
|
||
|
|
u'\u2280': u'\u2281', u'\u2282': u'\u2283', u'\u2284': u'\u2285',
|
||
|
|
u'\u2286': u'\u2287', u'\u2288': u'\u2289', u'\u228a': u'\u228b',
|
||
|
|
u'\u228f': u'\u2290', u'\u2291': u'\u2292', u'\u2298': u'\u29b8',
|
||
|
|
u'\u22a2': u'\u22a3', u'\u22a6': u'\u2ade', u'\u22a8': u'\u2ae4',
|
||
|
|
u'\u22a9': u'\u2ae3', u'\u22ab': u'\u2ae5', u'\u22b0': u'\u22b1',
|
||
|
|
u'\u22b2': u'\u22b3', u'\u22b4': u'\u22b5', u'\u22b6': u'\u22b7',
|
||
|
|
u'\u22c9': u'\u22ca', u'\u22cb': u'\u22cc', u'\u22d0': u'\u22d1',
|
||
|
|
u'\u22d6': u'\u22d7', u'\u22d8': u'\u22d9', u'\u22da': u'\u22db',
|
||
|
|
u'\u22dc': u'\u22dd', u'\u22de': u'\u22df', u'\u22e0': u'\u22e1',
|
||
|
|
u'\u22e2': u'\u22e3', u'\u22e4': u'\u22e5', u'\u22e6': u'\u22e7',
|
||
|
|
u'\u22e8': u'\u22e9', u'\u22ea': u'\u22eb', u'\u22ec': u'\u22ed',
|
||
|
|
u'\u22f0': u'\u22f1', u'\u22f2': u'\u22fa', u'\u22f3': u'\u22fb',
|
||
|
|
u'\u22f4': u'\u22fc', u'\u22f6': u'\u22fd', u'\u22f7': u'\u22fe',
|
||
|
|
u'\u2308': u'\u2309', u'\u230a': u'\u230b', u'\u2329': u'\u232a',
|
||
|
|
u'\u23b4': u'\u23b5', u'\u2768': u'\u2769', u'\u276a': u'\u276b',
|
||
|
|
u'\u276c': u'\u276d', u'\u276e': u'\u276f', u'\u2770': u'\u2771',
|
||
|
|
u'\u2772': u'\u2773', u'\u2774': u'\u2775', u'\u27c3': u'\u27c4',
|
||
|
|
u'\u27c5': u'\u27c6', u'\u27d5': u'\u27d6', u'\u27dd': u'\u27de',
|
||
|
|
u'\u27e2': u'\u27e3', u'\u27e4': u'\u27e5', u'\u27e6': u'\u27e7',
|
||
|
|
u'\u27e8': u'\u27e9', u'\u27ea': u'\u27eb', u'\u2983': u'\u2984',
|
||
|
|
u'\u2985': u'\u2986', u'\u2987': u'\u2988', u'\u2989': u'\u298a',
|
||
|
|
u'\u298b': u'\u298c', u'\u298d': u'\u298e', u'\u298f': u'\u2990',
|
||
|
|
u'\u2991': u'\u2992', u'\u2993': u'\u2994', u'\u2995': u'\u2996',
|
||
|
|
u'\u2997': u'\u2998', u'\u29c0': u'\u29c1', u'\u29c4': u'\u29c5',
|
||
|
|
u'\u29cf': u'\u29d0', u'\u29d1': u'\u29d2', u'\u29d4': u'\u29d5',
|
||
|
|
u'\u29d8': u'\u29d9', u'\u29da': u'\u29db', u'\u29f8': u'\u29f9',
|
||
|
|
u'\u29fc': u'\u29fd', u'\u2a2b': u'\u2a2c', u'\u2a2d': u'\u2a2e',
|
||
|
|
u'\u2a34': u'\u2a35', u'\u2a3c': u'\u2a3d', u'\u2a64': u'\u2a65',
|
||
|
|
u'\u2a79': u'\u2a7a', u'\u2a7d': u'\u2a7e', u'\u2a7f': u'\u2a80',
|
||
|
|
u'\u2a81': u'\u2a82', u'\u2a83': u'\u2a84', u'\u2a8b': u'\u2a8c',
|
||
|
|
u'\u2a91': u'\u2a92', u'\u2a93': u'\u2a94', u'\u2a95': u'\u2a96',
|
||
|
|
u'\u2a97': u'\u2a98', u'\u2a99': u'\u2a9a', u'\u2a9b': u'\u2a9c',
|
||
|
|
u'\u2aa1': u'\u2aa2', u'\u2aa6': u'\u2aa7', u'\u2aa8': u'\u2aa9',
|
||
|
|
u'\u2aaa': u'\u2aab', u'\u2aac': u'\u2aad', u'\u2aaf': u'\u2ab0',
|
||
|
|
u'\u2ab3': u'\u2ab4', u'\u2abb': u'\u2abc', u'\u2abd': u'\u2abe',
|
||
|
|
u'\u2abf': u'\u2ac0', u'\u2ac1': u'\u2ac2', u'\u2ac3': u'\u2ac4',
|
||
|
|
u'\u2ac5': u'\u2ac6', u'\u2acd': u'\u2ace', u'\u2acf': u'\u2ad0',
|
||
|
|
u'\u2ad1': u'\u2ad2', u'\u2ad3': u'\u2ad4', u'\u2ad5': u'\u2ad6',
|
||
|
|
u'\u2aec': u'\u2aed', u'\u2af7': u'\u2af8', u'\u2af9': u'\u2afa',
|
||
|
|
u'\u2e02': u'\u2e03', u'\u2e04': u'\u2e05', u'\u2e09': u'\u2e0a',
|
||
|
|
u'\u2e0c': u'\u2e0d', u'\u2e1c': u'\u2e1d', u'\u2e20': u'\u2e21',
|
||
|
|
u'\u3008': u'\u3009', u'\u300a': u'\u300b', u'\u300c': u'\u300d',
|
||
|
|
u'\u300e': u'\u300f', u'\u3010': u'\u3011', u'\u3014': u'\u3015',
|
||
|
|
u'\u3016': u'\u3017', u'\u3018': u'\u3019', u'\u301a': u'\u301b',
|
||
|
|
u'\u301d': u'\u301e', u'\ufd3e': u'\ufd3f', u'\ufe17': u'\ufe18',
|
||
|
|
u'\ufe35': u'\ufe36', u'\ufe37': u'\ufe38', u'\ufe39': u'\ufe3a',
|
||
|
|
u'\ufe3b': u'\ufe3c', u'\ufe3d': u'\ufe3e', u'\ufe3f': u'\ufe40',
|
||
|
|
u'\ufe41': u'\ufe42', u'\ufe43': u'\ufe44', u'\ufe47': u'\ufe48',
|
||
|
|
u'\ufe59': u'\ufe5a', u'\ufe5b': u'\ufe5c', u'\ufe5d': u'\ufe5e',
|
||
|
|
u'\uff08': u'\uff09', u'\uff1c': u'\uff1e', u'\uff3b': u'\uff3d',
|
||
|
|
u'\uff5b': u'\uff5d', u'\uff5f': u'\uff60', u'\uff62': u'\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]*$', Comment.Singleline),
|
||
|
|
(r'^(\s*)=begin\s+(\w+)\b.*?^\1=end\s+\2', Comment.Multiline),
|
||
|
|
(r'^(\s*)=for.*?\n\s*?\n', Comment.Multiline),
|
||
|
|
(r'^=.*?\n\s*?\n', Comment.Multiline),
|
||
|
|
(r'(regex|token|rule)(\s*' + PERL6_IDENTIFIER_RANGE + '+:sym)',
|
||
|
|
bygroups(Keyword, Name), 'token-sym-brackets'),
|
||
|
|
(r'(regex|token|rule)(?!' + PERL6_IDENTIFIER_RANGE + ')(\s*' + PERL6_IDENTIFIER_RANGE + '+)?',
|
||
|
|
bygroups(Keyword, Name), 'pre-token'),
|
||
|
|
# deal with a special case in the Perl 6 grammar (role q { ... })
|
||
|
|
(r'(role)(\s+)(q)(\s*)', bygroups(Keyword, Text, Name, Text)),
|
||
|
|
(_build_word_match(PERL6_KEYWORDS, PERL6_IDENTIFIER_RANGE), Keyword),
|
||
|
|
(_build_word_match(PERL6_BUILTIN_CLASSES, PERL6_IDENTIFIER_RANGE, suffix='(?::[UD])?'),
|
||
|
|
Name.Builtin),
|
||
|
|
(_build_word_match(PERL6_BUILTINS, PERL6_IDENTIFIER_RANGE), Name.Builtin),
|
||
|
|
# copied from PerlLexer
|
||
|
|
(r'[$@%&][.^:?=!~]?' + PERL6_IDENTIFIER_RANGE + u'+(?:<<.*?>>|<.*?>|«.*?»)*',
|
||
|
|
Name.Variable),
|
||
|
|
(r'\$[!/](?:<<.*?>>|<.*?>|«.*?»)*', Name.Variable.Global),
|
||
|
|
(r'::\?\w+', Name.Variable.Global),
|
||
|
|
(r'[$@%&]\*' + PERL6_IDENTIFIER_RANGE + u'+(?:<<.*?>>|<.*?>|«.*?»)*',
|
||
|
|
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'#.*?$', Comment.Singleline),
|
||
|
|
(r'\{', embedded_perl6_callback),
|
||
|
|
('.+?', String.Regex),
|
||
|
|
],
|
||
|
|
}
|
||
|
|
|
||
|
|
def analyse_text(text):
|
||
|
|
def strip_pod(lines):
|
||
|
|
in_pod = False
|
||
|
|
stripped_lines = []
|
||
|
|
|
||
|
|
for line in lines:
|
||
|
|
if re.match(r'^=(?:end|cut)', line):
|
||
|
|
in_pod = False
|
||
|
|
elif re.match(r'^=\w+', line):
|
||
|
|
in_pod = True
|
||
|
|
elif not in_pod:
|
||
|
|
stripped_lines.append(line)
|
||
|
|
|
||
|
|
return stripped_lines
|
||
|
|
|
||
|
|
# XXX handle block comments
|
||
|
|
lines = text.splitlines()
|
||
|
|
lines = strip_pod(lines)
|
||
|
|
text = '\n'.join(lines)
|
||
|
|
|
||
|
|
if shebang_matches(text, r'perl6|rakudo|niecza|pugs'):
|
||
|
|
return True
|
||
|
|
|
||
|
|
saw_perl_decl = False
|
||
|
|
rating = False
|
||
|
|
|
||
|
|
# check for my/our/has declarations
|
||
|
|
if re.search("(?:my|our|has)\s+(?:" + Perl6Lexer.PERL6_IDENTIFIER_RANGE +
|
||
|
|
"+\s+)?[$@%&(]", text):
|
||
|
|
rating = 0.8
|
||
|
|
saw_perl_decl = True
|
||
|
|
|
||
|
|
for line in lines:
|
||
|
|
line = re.sub('#.*', '', line)
|
||
|
|
if re.match('^\s*$', line):
|
||
|
|
continue
|
||
|
|
|
||
|
|
# match v6; use v6; use v6.0; use v6.0.0;
|
||
|
|
if re.match('^\s*(?:use\s+)?v6(?:\.\d(?:\.\d)?)?;', line):
|
||
|
|
return True
|
||
|
|
# match class, module, role, enum, grammar declarations
|
||
|
|
class_decl = re.match('^\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(Perl6Lexer, self).__init__(**options)
|
||
|
|
self.encoding = options.get('encoding', 'utf-8')
|