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Tim Hatch  committed 0eb0699 Merge

Merged in hoelzro/pygments-main (pull request #181)

Add Perl 6 lexer

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  • Parent commits ebf732c, ce62fc8

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Files changed (6)

File .hgignore

File contents unchanged.

File pygments/lexers/_mapping.py

     'OocLexer': ('pygments.lexers.compiled', 'Ooc', ('ooc',), ('*.ooc',), ('text/x-ooc',)),
     'OpaLexer': ('pygments.lexers.functional', 'Opa', ('opa',), ('*.opa',), ('text/x-opa',)),
     'OpenEdgeLexer': ('pygments.lexers.other', 'OpenEdge ABL', ('openedge', 'abl', 'progress'), ('*.p', '*.cls'), ('text/x-openedge', 'application/x-openedge')),
+    'Perl6Lexer': ('pygments.lexers.agile', 'Perl6', ('perl6', 'pl6'), ('*.pl', '*.pm', '*.nqp', '*.p6', '*.6pl', '*.p6l', '*.pl6', '*.6pm', '*.p6m', '*.pm6'), ('text/x-perl6', 'application/x-perl6')),
     'PerlLexer': ('pygments.lexers.agile', 'Perl', ('perl', 'pl'), ('*.pl', '*.pm'), ('text/x-perl', 'application/x-perl')),
     'PhpLexer': ('pygments.lexers.web', 'PHP', ('php', 'php3', 'php4', 'php5'), ('*.php', '*.php[345]', '*.inc'), ('text/x-php',)),
     'PlPgsqlLexer': ('pygments.lexers.sql', 'PL/pgSQL', ('plpgsql',), (), ('text/x-plpgsql',)),

File pygments/lexers/agile.py

 import re
 
 from pygments.lexer import Lexer, RegexLexer, ExtendedRegexLexer, \
-     LexerContext, include, combined, do_insertions, bygroups, using
+     LexerContext, include, combined, do_insertions, bygroups, using, this
 from pygments.token import Error, Text, Other, \
      Comment, Operator, Keyword, Name, String, Number, Generic, Punctuation
 from pygments.util import get_bool_opt, get_list_opt, shebang_matches
            'Python3Lexer', 'Python3TracebackLexer', 'RubyLexer',
            'RubyConsoleLexer', 'PerlLexer', 'LuaLexer', 'MoonScriptLexer',
            'CrocLexer', 'MiniDLexer', 'IoLexer', 'TclLexer', 'FactorLexer',
-           'FancyLexer', 'DgLexer']
+           'FancyLexer', 'DgLexer', 'Perl6Lexer']
 
 # b/w compatibility
 from pygments.lexers.functional import SchemeLexer
             (r"'''", String, '#pop')
         ],
     }
+
+class Perl6Lexer(ExtendedRegexLexer):
+    """
+    For `Perl 6 <http://www.perl6.org>`_ source code.
+    """
+
+    name      = 'Perl6'
+    aliases   = ['perl6', 'pl6']
+    filenames = ['*.pl', '*.pm', '*.nqp', '*.p6', '*.6pl', '*.p6l', '*.pl6',
+                 '*.6pm', '*.p6m', '*.pm6']
+    mimetypes = ['text/x-perl6', 'application/x-perl6']
+    flags     = re.MULTILINE | re.DOTALL | re.UNICODE
+
+    PERL6_IDENTIFIER_RANGE = "['a-zA-Z0-9_:-]"
+
+    PERL6_KEYWORDS = (
+        'BEGIN', 'CATCH', 'CHECK', 'CONTROL', 'END', 'ENTER', 'FIRST', 'INIT',
+        'KEEP', 'LAST', 'LEAVE', 'NEXT', 'POST', 'PRE', 'START', 'TEMP',
+        'UNDO', 'as', 'assoc', 'async', 'augment', 'binary', 'break', 'but',
+        'cached', 'category', 'class', 'constant', 'contend', 'continue',
+        'copy', 'deep', 'default', 'defequiv', 'defer', 'die', 'do', 'else',
+        'elsif', 'enum', 'equiv', 'exit', 'export', 'fail', 'fatal', 'for',
+        'gather', 'given', 'goto', 'grammar', 'handles', 'has', 'if', 'inline',
+        'irs', 'is', 'last', 'leave', 'let', 'lift', 'loop', 'looser', 'macro',
+        'make', 'maybe', 'method', 'module', 'multi', 'my', 'next', 'of',
+        'ofs', 'only', 'oo', 'ors', 'our', 'package', 'parsed', 'prec',
+        'proto', 'readonly', 'redo', 'ref', 'regex', 'reparsed', 'repeat',
+        'require', 'required', 'return', 'returns', 'role', 'rule', 'rw',
+        'self', 'slang', 'state', 'sub', 'submethod', 'subset', 'supersede',
+        'take', 'temp', 'tighter', 'token', 'trusts', 'try', 'unary',
+        'unless', 'until', 'use', 'warn', 'when', 'where', 'while', 'will',
+    )
+
+    PERL6_BUILTINS = (
+        'ACCEPTS', 'HOW', 'REJECTS', 'VAR', 'WHAT', 'WHENCE', 'WHERE', 'WHICH',
+        'WHO', 'abs', 'acos', 'acosec', 'acosech', 'acosh', 'acotan', 'acotanh',
+        'all', 'any', 'approx', 'arity', 'asec', 'asech', 'asin', 'asinh'
+        'assuming', 'atan', 'atan2', 'atanh', 'attr', 'bless', 'body', 'by'
+        'bytes', 'caller', 'callsame', 'callwith', 'can', 'capitalize', 'cat',
+        'ceiling', 'chars', 'chmod', 'chomp', 'chop', 'chr', 'chroot',
+        'circumfix', 'cis', 'classify', 'clone', 'close', 'cmp_ok', 'codes',
+        'comb', 'connect', 'contains', 'context', 'cos', 'cosec', 'cosech',
+        'cosh', 'cotan', 'cotanh', 'count', 'defined', 'delete', 'diag',
+        'dies_ok', 'does', 'e', 'each', 'eager', 'elems', 'end', 'eof', 'eval',
+        'eval_dies_ok', 'eval_elsewhere', 'eval_lives_ok', 'evalfile', 'exists',
+        'exp', 'first', 'flip', 'floor', 'flunk', 'flush', 'fmt', 'force_todo',
+        'fork', 'from', 'getc', 'gethost', 'getlogin', 'getpeername', 'getpw',
+        'gmtime', 'graphs', 'grep', 'hints', 'hyper', 'im', 'index', 'infix',
+        'invert', 'is_approx', 'is_deeply', 'isa', 'isa_ok', 'isnt', 'iterator',
+        'join', 'key', 'keys', 'kill', 'kv', 'lastcall', 'lazy', 'lc', 'lcfirst',
+        'like', 'lines', 'link', 'lives_ok', 'localtime', 'log', 'log10', 'map',
+        'max', 'min', 'minmax', 'name', 'new', 'nextsame', 'nextwith', 'nfc',
+        'nfd', 'nfkc', 'nfkd', 'nok_error', 'nonce', 'none', 'normalize', 'not',
+        'nothing', 'ok', 'once', 'one', 'open', 'opendir', 'operator', 'ord',
+        'p5chomp', 'p5chop', 'pack', 'pair', 'pairs', 'pass', 'perl', 'pi',
+        'pick', 'plan', 'plan_ok', 'polar', 'pop', 'pos', 'postcircumfix',
+        'postfix', 'pred', 'prefix', 'print', 'printf', 'push', 'quasi',
+        '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 + ')' + prefix + '(' + \
+                r'|'.join([ re.escape(x) for x in words]) + r')' + suffix + '(?!' + boundary_regex_fragment + ')'
+
+    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 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[ match.end('delimiter') : ], re.MULTILINE)
+
+                if end_heredoc:
+                    end_pos = match.end('delimiter') + 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.keys()) + 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])(?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>[^0-9a-zA-Z:\s])(?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'[0-9a-zA-Z_]' + 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.keys()) + '])(?P=first_char)*)', brackets_callback(Name), ('#pop', 'pre-token')),
+            (r'', Name, ('#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
+
+        lines = text.splitlines()
+        lines = strip_pod(lines)
+        text  = '\n'.join(lines)
+
+        if shebang_matches(text, r'perl6|rakudo|niecza'):
+            return True
+
+        if 'use v6' in text:
+            return 0.91 # 0.01 greater than Perl says for 'my $'
+        if re.search(r'[$@%]\*[A-Z]+', text): # Perl 6-style globals ($*OS)
+            return 0.91
+        if re.search(r'[$@%]\?[A-Z]+', text): # Perl 6 compiler variables ($?PACKAGE)
+            return 0.91
+        if re.search(r'[$@%][!.][A-Za-z0-9_-]+', text): # Perl 6 member variables
+            return 0.91
+
+        for line in text.splitlines():
+            if re.match(r'\s*(?:my|our)?\s*module', line): # module declarations
+                return 0.91
+            if re.match(r'\s*(?:my|our)?\s*role', line): # role declarations
+                return 0.91
+            if re.match(r'\s*(?:my|our)?\s*class\b', line): # class declarations
+                return 0.91
+        return False
+
+    def __init__(self, **options):
+        super(Perl6Lexer, self).__init__(**options)
+        self.encoding = options.get('encoding', 'utf-8')

File tests/examplefiles/RoleQ.pm6

+role q {
+    token stopper { \' }
+
+    token escape:sym<\\> { <sym> <item=.backslash> }
+
+    token backslash:sym<qq> { <?before 'q'> <quote=.LANG('MAIN','quote')> }
+    token backslash:sym<\\> { <text=.sym> }
+    token backslash:sym<stopper> { <text=.stopper> }
+
+    token backslash:sym<miscq> { {} . }
+
+    method tweak_q($v) { self.panic("Too late for :q") }
+    method tweak_qq($v) { self.panic("Too late for :qq") }
+}
+
+role qq does b1 does c1 does s1 does a1 does h1 does f1 {
+    token stopper { \" }
+    token backslash:sym<unrec> { {} (\w) { self.throw_unrecog_backslash_seq: $/[0].Str } }
+    token backslash:sym<misc> { \W }
+
+    method tweak_q($v) { self.panic("Too late for :q") }
+    method tweak_qq($v) { self.panic("Too late for :qq") }
+}

File tests/examplefiles/grammar-test.p6

+token pod_formatting_code {
+    $<code>=<[A..Z]>
+    '<' { $*POD_IN_FORMATTINGCODE := 1 }
+    $<content>=[ <!before '>'> <pod_string_character> ]+
+    '>' { $*POD_IN_FORMATTINGCODE := 0 }
+}
+
+token pod_string {
+    <pod_string_character>+
+}
+
+token something:sym«<» {
+    <!>
+}
+
+token name {
+    <!>
+}
+
+token comment:sym<#> {
+   '#' {} \N*
+}

File tests/examplefiles/test.p6

+#!/usr/bin/env perl6
+
+use v6;
+
+my $string = 'I look like a # comment!';
+
+if $string eq 'foo' {
+    say 'hello';
+}
+
+regex http-verb {
+      'GET'
+    | 'POST'
+    | 'PUT'
+    | 'DELETE'
+    | 'TRACE'
+    | 'OPTIONS'
+    | 'HEAD'
+}
+
+# a sample comment
+
+say 'Hello from Perl 6!'
+
+
+#`{
+multi-line comment!
+}
+
+say 'here';
+
+#`(
+multi-line comment!
+)
+
+say 'here';
+
+#`{{{
+I'm a special comment!
+}}}
+
+say 'there';
+
+#`{{
+I'm { even } specialer!
+}}
+
+say 'there';
+
+#`{{
+does {{nesting}} work?
+}}
+
+#`«<
+trying mixed delimiters
+
+my $string = qq<Hooray, arbitrary delimiter!>;
+my $string = qq«Hooray, arbitrary delimiter!»;
+my $string = q <now with whitespace!>;
+my $string = qq<<more strings>>;
+
+my %hash := Hash.new;
+
+=begin pod
+
+Here's some POD!  Wooo
+
+=end pod
+
+=for Testing
+    This is POD (see? role isn't highlighted)
+
+say('this is not!');
+
+=table
+    Of role things
+
+say('not in your table');
+#= A single line declarator "block" (with a keyword like role)
+#| Another single line declarator "block" (with a keyword like role)
+#={
+    A declarator block (with a keyword like role)
+  }
+#|{
+    Another declarator block (with a keyword like role)
+  }
+#= { A single line declarator "block" with a brace (with a keyword like role)
+#=«
+    More declarator blocks! (with a keyword like role)
+  »
+#|«
+    More declarator blocks! (with a keyword like role)
+  »
+
+say 'Moar code!';
+
+my $don't = 16;
+
+sub don't($x) {
+    !$x
+}
+
+say don't 'foo';
+
+my %hash = (
+    :foo(1),
+);
+
+say %hash<foo>;
+say %hash<<foo>>;
+say %hash«foo»;
+
+say %*hash<foo>;
+say %*hash<<foo>>;
+say %*hash«foo»;
+
+say $<todo>;
+say $<todo>;
+
+for (@A Z @B) -> $a, $b {
+    say $a + $b;
+}
+
+Q:PIR {
+    .loadlib "somelib"
+}
+
+my $longstring = q/
+    lots
+    of
+    text
+/;
+
+my $heredoc = q:to/END_SQL/;
+SELECT * FROM Users
+WHERE first_name = 'Rob'
+END_SQL
+my $hello;
+
+# Fun with regexen
+
+if 'food' ~~ /foo/ {
+    say 'match!'
+}
+
+my $re  = /foo/;
+my $re2 = m/ foo /;
+my $re3 = m:i/ FOO /;
+
+call-a-sub(/ foo /);
+call-a-sub(/ foo \/ bar /);
+
+my $re4    = rx/something | something-else/;
+my $result = ms/regexy stuff/;
+my $sub0   = s/regexy stuff/more stuff/;
+my $sub    = ss/regexy stuff/more stuff/;
+my $trans  = tr/regexy stuff/more stuff/;
+
+my @values = <a b c d>;
+call-sub(<a b c d>);
+call-sub <a b c d>;
+
+my $result = $a < $b;
+
+for <a b c d> -> $letter {
+    say $letter;
+}
+
+sub test-sub {
+    say @_;
+    say $!;
+    say $/;
+    say $0;
+    say $1;
+    say @*ARGS;
+    say $*ARGFILES;
+    say &?BLOCK;
+    say ::?CLASS;
+    say $?CLASS;
+    say @=COMMENT;
+    say %?CONFIG;
+    say $*CWD;
+    say $=data;
+    say %?DEEPMAGIC;
+    say $?DISTRO;
+    say $*DISTRO;
+    say $*EGID;
+    say %*ENV;
+    say $*ERR;
+    say $*EUID;
+    say $*EXECUTABLE_NAME;
+    say $?FILE;
+    say $?GRAMMAR;
+    say $*GID;
+    say $*IN;
+    say @*INC;
+    say %?LANG;
+    say $*LANG;
+    say $?LINE;
+    say %*META-ARGS;
+    say $?MODULE;
+    say %*OPTS;
+    say %*OPT;
+    say $?KERNEL;
+    say $*KERNEL;
+    say $*OUT;
+    say $?PACKAGE;
+    say $?PERL;
+    say $*PERL;
+    say $*PID;
+    say %=pod;
+    say $*PROGRAM_NAME;
+    say %*PROTOCOLS;
+    say ::?ROLE;
+    say $?ROLE;
+    say &?ROUTINE;
+    say $?SCOPE;
+    say $*TZ;
+    say $*UID;
+    say $?USAGE;
+    say $?VM;
+    say $?XVM;
+}
+
+say <a b c>;
+
+my $perl5_re = m:P5/ fo{2} /;
+my $re5      = rx«something | something-else»;
+
+my $M := %*COMPILING<%?OPTIONS><M>;
+
+say $M;
+
+sub regex-name { ... }
+my $pair = role-name => 'foo';
+$pair = rolesque => 'foo';
+
+my sub something(Str:D $value) { ... }
+
+my $s = q«<
+some
+string
+stuff
+»;
+
+my $regex = m«< some chars »;
+# after
+
+say $/<foo><bar>;
+
+roleq;