venv

1 files changed, 1382 insertions, 0 deletions

diff --git a/venv/lib/python3.11/site-packages/pygments/lexers/int_fiction.py b/venv/lib/python3.11/site-packages/pygments/lexers/int_fiction.py
new file mode 100644
index 0000000..4f4d55d
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/pygments/lexers/int_fiction.py
@@ -0,0 +1,1382 @@
+"""
+    pygments.lexers.int_fiction
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    Lexers for interactive fiction languages.
+
+    :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import re
+
+from pygments.lexer import RegexLexer, include, bygroups, using, \
+    this, default, words
+from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
+    Number, Punctuation, Error, Generic
+
+__all__ = ['Inform6Lexer', 'Inform6TemplateLexer', 'Inform7Lexer',
+           'Tads3Lexer']
+
+
+class Inform6Lexer(RegexLexer):
+    """
+    For Inform 6 source code.
+
+    .. versionadded:: 2.0
+    """
+
+    name = 'Inform 6'
+    url = 'http://inform-fiction.org/'
+    aliases = ['inform6', 'i6']
+    filenames = ['*.inf']
+
+    flags = re.MULTILINE | re.DOTALL
+
+    _name = r'[a-zA-Z_]\w*'
+
+    # Inform 7 maps these four character classes to their ASCII
+    # equivalents. To support Inform 6 inclusions within Inform 7,
+    # Inform6Lexer maps them too.
+    _dash = '\\-\u2010-\u2014'
+    _dquote = '"\u201c\u201d'
+    _squote = "'\u2018\u2019"
+    _newline = '\\n\u0085\u2028\u2029'
+
+    tokens = {
+        'root': [
+            (r'\A(!%%[^%s]*[%s])+' % (_newline, _newline), Comment.Preproc,
+             'directive'),
+            default('directive')
+        ],
+        '_whitespace': [
+            (r'\s+', Text),
+            (r'![^%s]*' % _newline, Comment.Single)
+        ],
+        'default': [
+            include('_whitespace'),
+            (r'\[', Punctuation, 'many-values'),  # Array initialization
+            (r':|(?=;)', Punctuation, '#pop'),
+            (r'<', Punctuation),  # Second angle bracket in an action statement
+            default(('expression', '_expression'))
+        ],
+
+        # Expressions
+        '_expression': [
+            include('_whitespace'),
+            (r'(?=sp\b)', Text, '#pop'),
+            (r'(?=[%s%s$0-9#a-zA-Z_])' % (_dquote, _squote), Text,
+             ('#pop', 'value')),
+            (r'\+\+|[%s]{1,2}(?!>)|~~?' % _dash, Operator),
+            (r'(?=[()\[%s,?@{:;])' % _dash, Text, '#pop')
+        ],
+        'expression': [
+            include('_whitespace'),
+            (r'\(', Punctuation, ('expression', '_expression')),
+            (r'\)', Punctuation, '#pop'),
+            (r'\[', Punctuation, ('#pop', 'statements', 'locals')),
+            (r'>(?=(\s+|(![^%s]*))*[>;])' % _newline, Punctuation),
+            (r'\+\+|[%s]{2}(?!>)' % _dash, Operator),
+            (r',', Punctuation, '_expression'),
+            (r'&&?|\|\|?|[=~><]?=|[%s]{1,2}>?|\.\.?[&#]?|::|[<>+*/%%]' % _dash,
+             Operator, '_expression'),
+            (r'(has|hasnt|in|notin|ofclass|or|provides)\b', Operator.Word,
+             '_expression'),
+            (r'sp\b', Name),
+            (r'\?~?', Name.Label, 'label?'),
+            (r'[@{]', Error),
+            default('#pop')
+        ],
+        '_assembly-expression': [
+            (r'\(', Punctuation, ('#push', '_expression')),
+            (r'[\[\]]', Punctuation),
+            (r'[%s]>' % _dash, Punctuation, '_expression'),
+            (r'sp\b', Keyword.Pseudo),
+            (r';', Punctuation, '#pop:3'),
+            include('expression')
+        ],
+        '_for-expression': [
+            (r'\)', Punctuation, '#pop:2'),
+            (r':', Punctuation, '#pop'),
+            include('expression')
+        ],
+        '_keyword-expression': [
+            (r'(from|near|to)\b', Keyword, '_expression'),
+            include('expression')
+        ],
+        '_list-expression': [
+            (r',', Punctuation, '#pop'),
+            include('expression')
+        ],
+        '_object-expression': [
+            (r'has\b', Keyword.Declaration, '#pop'),
+            include('_list-expression')
+        ],
+
+        # Values
+        'value': [
+            include('_whitespace'),
+            # Strings
+            (r'[%s][^@][%s]' % (_squote, _squote), String.Char, '#pop'),
+            (r'([%s])(@\{[0-9a-fA-F]*\})([%s])' % (_squote, _squote),
+             bygroups(String.Char, String.Escape, String.Char), '#pop'),
+            (r'([%s])(@.{2})([%s])' % (_squote, _squote),
+             bygroups(String.Char, String.Escape, String.Char), '#pop'),
+            (r'[%s]' % _squote, String.Single, ('#pop', 'dictionary-word')),
+            (r'[%s]' % _dquote, String.Double, ('#pop', 'string')),
+            # Numbers
+            (r'\$[<>]?[+%s][0-9]*\.?[0-9]*([eE][+%s]?[0-9]+)?' % (_dash, _dash),
+             Number.Float, '#pop'),
+            (r'\$[0-9a-fA-F]+', Number.Hex, '#pop'),
+            (r'\$\$[01]+', Number.Bin, '#pop'),
+            (r'[0-9]+', Number.Integer, '#pop'),
+            # Values prefixed by hashes
+            (r'(##|#a\$)(%s)' % _name, bygroups(Operator, Name), '#pop'),
+            (r'(#g\$)(%s)' % _name,
+             bygroups(Operator, Name.Variable.Global), '#pop'),
+            (r'#[nw]\$', Operator, ('#pop', 'obsolete-dictionary-word')),
+            (r'(#r\$)(%s)' % _name, bygroups(Operator, Name.Function), '#pop'),
+            (r'#', Name.Builtin, ('#pop', 'system-constant')),
+            # System functions
+            (words((
+                'child', 'children', 'elder', 'eldest', 'glk', 'indirect', 'metaclass',
+                'parent', 'random', 'sibling', 'younger', 'youngest'), suffix=r'\b'),
+             Name.Builtin, '#pop'),
+            # Metaclasses
+            (r'(?i)(Class|Object|Routine|String)\b', Name.Builtin, '#pop'),
+            # Veneer routines
+            (words((
+                'Box__Routine', 'CA__Pr', 'CDefArt', 'CInDefArt', 'Cl__Ms',
+                'Copy__Primitive', 'CP__Tab', 'DA__Pr', 'DB__Pr', 'DefArt', 'Dynam__String',
+                'EnglishNumber', 'Glk__Wrap', 'IA__Pr', 'IB__Pr', 'InDefArt', 'Main__',
+                'Meta__class', 'OB__Move', 'OB__Remove', 'OC__Cl', 'OP__Pr', 'Print__Addr',
+                'Print__PName', 'PrintShortName', 'RA__Pr', 'RA__Sc', 'RL__Pr', 'R_Process',
+                'RT__ChG', 'RT__ChGt', 'RT__ChLDB', 'RT__ChLDW', 'RT__ChPR', 'RT__ChPrintA',
+                'RT__ChPrintC', 'RT__ChPrintO', 'RT__ChPrintS', 'RT__ChPS', 'RT__ChR',
+                'RT__ChSTB', 'RT__ChSTW', 'RT__ChT', 'RT__Err', 'RT__TrPS', 'RV__Pr',
+                'Symb__Tab', 'Unsigned__Compare', 'WV__Pr', 'Z__Region'),
+                prefix='(?i)', suffix=r'\b'),
+             Name.Builtin, '#pop'),
+            # Other built-in symbols
+            (words((
+                'call', 'copy', 'create', 'DEBUG', 'destroy', 'DICT_CHAR_SIZE',
+                'DICT_ENTRY_BYTES', 'DICT_IS_UNICODE', 'DICT_WORD_SIZE', 'DOUBLE_HI_INFINITY',
+                'DOUBLE_HI_NAN', 'DOUBLE_HI_NINFINITY', 'DOUBLE_LO_INFINITY', 'DOUBLE_LO_NAN',
+                'DOUBLE_LO_NINFINITY', 'false', 'FLOAT_INFINITY', 'FLOAT_NAN', 'FLOAT_NINFINITY',
+                'GOBJFIELD_CHAIN', 'GOBJFIELD_CHILD', 'GOBJFIELD_NAME', 'GOBJFIELD_PARENT',
+                'GOBJFIELD_PROPTAB', 'GOBJFIELD_SIBLING', 'GOBJ_EXT_START',
+                'GOBJ_TOTAL_LENGTH', 'Grammar__Version', 'INDIV_PROP_START', 'INFIX',
+                'infix__watching', 'MODULE_MODE', 'name', 'nothing', 'NUM_ATTR_BYTES', 'print',
+                'print_to_array', 'recreate', 'remaining', 'self', 'sender', 'STRICT_MODE',
+                'sw__var', 'sys__glob0', 'sys__glob1', 'sys__glob2', 'sys_statusline_flag',
+                'TARGET_GLULX', 'TARGET_ZCODE', 'temp__global2', 'temp__global3',
+                'temp__global4', 'temp_global', 'true', 'USE_MODULES', 'WORDSIZE'),
+                prefix='(?i)', suffix=r'\b'),
+             Name.Builtin, '#pop'),
+            # Other values
+            (_name, Name, '#pop')
+        ],
+        'value?': [
+            include('value'),
+            default('#pop')
+        ],
+        # Strings
+        'dictionary-word': [
+            (r'[~^]+', String.Escape),
+            (r'[^~^\\@({%s]+' % _squote, String.Single),
+            (r'[({]', String.Single),
+            (r'@\{[0-9a-fA-F]*\}', String.Escape),
+            (r'@.{2}', String.Escape),
+            (r'[%s]' % _squote, String.Single, '#pop')
+        ],
+        'string': [
+            (r'[~^]+', String.Escape),
+            (r'[^~^\\@({%s]+' % _dquote, String.Double),
+            (r'[({]', String.Double),
+            (r'\\', String.Escape),
+            (r'@(\\\s*[%s]\s*)*@((\\\s*[%s]\s*)*[0-9])*' %
+             (_newline, _newline), String.Escape),
+            (r'@(\\\s*[%s]\s*)*[({]((\\\s*[%s]\s*)*[0-9a-zA-Z_])*'
+             r'(\\\s*[%s]\s*)*[)}]' % (_newline, _newline, _newline),
+             String.Escape),
+            (r'@(\\\s*[%s]\s*)*.(\\\s*[%s]\s*)*.' % (_newline, _newline),
+             String.Escape),
+            (r'[%s]' % _dquote, String.Double, '#pop')
+        ],
+        'plain-string': [
+            (r'[^~^\\({\[\]%s]+' % _dquote, String.Double),
+            (r'[~^({\[\]]', String.Double),
+            (r'\\', String.Escape),
+            (r'[%s]' % _dquote, String.Double, '#pop')
+        ],
+        # Names
+        '_constant': [
+            include('_whitespace'),
+            (_name, Name.Constant, '#pop'),
+            include('value')
+        ],
+        'constant*': [
+            include('_whitespace'),
+            (r',', Punctuation),
+            (r'=', Punctuation, 'value?'),
+            (_name, Name.Constant, 'value?'),
+            default('#pop')
+        ],
+        '_global': [
+            include('_whitespace'),
+            (_name, Name.Variable.Global, '#pop'),
+            include('value')
+        ],
+        'label?': [
+            include('_whitespace'),
+            (_name, Name.Label, '#pop'),
+            default('#pop')
+        ],
+        'variable?': [
+            include('_whitespace'),
+            (_name, Name.Variable, '#pop'),
+            default('#pop')
+        ],
+        # Values after hashes
+        'obsolete-dictionary-word': [
+            (r'\S\w*', String.Other, '#pop')
+        ],
+        'system-constant': [
+            include('_whitespace'),
+            (_name, Name.Builtin, '#pop')
+        ],
+
+        # Directives
+        'directive': [
+            include('_whitespace'),
+            (r'#', Punctuation),
+            (r';', Punctuation, '#pop'),
+            (r'\[', Punctuation,
+             ('default', 'statements', 'locals', 'routine-name?')),
+            (words((
+                'abbreviate', 'endif', 'dictionary', 'ifdef', 'iffalse', 'ifndef', 'ifnot',
+                'iftrue', 'ifv3', 'ifv5', 'release', 'serial', 'switches', 'system_file',
+                'version'), prefix='(?i)', suffix=r'\b'),
+             Keyword, 'default'),
+            (r'(?i)(array|global)\b', Keyword,
+             ('default', 'directive-keyword?', '_global')),
+            (r'(?i)attribute\b', Keyword, ('default', 'alias?', '_constant')),
+            (r'(?i)class\b', Keyword,
+             ('object-body', 'duplicates', 'class-name')),
+            (r'(?i)(constant|default)\b', Keyword,
+             ('default', 'constant*')),
+            (r'(?i)(end\b)(.*)', bygroups(Keyword, Text)),
+            (r'(?i)(extend|verb)\b', Keyword, 'grammar'),
+            (r'(?i)fake_action\b', Keyword, ('default', '_constant')),
+            (r'(?i)import\b', Keyword, 'manifest'),
+            (r'(?i)(include|link|origsource)\b', Keyword,
+             ('default', 'before-plain-string?')),
+            (r'(?i)(lowstring|undef)\b', Keyword, ('default', '_constant')),
+            (r'(?i)message\b', Keyword, ('default', 'diagnostic')),
+            (r'(?i)(nearby|object)\b', Keyword,
+             ('object-body', '_object-head')),
+            (r'(?i)property\b', Keyword,
+             ('default', 'alias?', '_constant', 'property-keyword*')),
+            (r'(?i)replace\b', Keyword,
+             ('default', 'routine-name?', 'routine-name?')),
+            (r'(?i)statusline\b', Keyword, ('default', 'directive-keyword?')),
+            (r'(?i)stub\b', Keyword, ('default', 'routine-name?')),
+            (r'(?i)trace\b', Keyword,
+             ('default', 'trace-keyword?', 'trace-keyword?')),
+            (r'(?i)zcharacter\b', Keyword,
+             ('default', 'directive-keyword?', 'directive-keyword?')),
+            (_name, Name.Class, ('object-body', '_object-head'))
+        ],
+        # [, Replace, Stub
+        'routine-name?': [
+            include('_whitespace'),
+            (_name, Name.Function, '#pop'),
+            default('#pop')
+        ],
+        'locals': [
+            include('_whitespace'),
+            (r';', Punctuation, '#pop'),
+            (r'\*', Punctuation),
+            (r'"', String.Double, 'plain-string'),
+            (_name, Name.Variable)
+        ],
+        # Array
+        'many-values': [
+            include('_whitespace'),
+            (r';', Punctuation),
+            (r'\]', Punctuation, '#pop'),
+            (r':', Error),
+            default(('expression', '_expression'))
+        ],
+        # Attribute, Property
+        'alias?': [
+            include('_whitespace'),
+            (r'alias\b', Keyword, ('#pop', '_constant')),
+            default('#pop')
+        ],
+        # Class, Object, Nearby
+        'class-name': [
+            include('_whitespace'),
+            (r'(?=[,;]|(class|has|private|with)\b)', Text, '#pop'),
+            (_name, Name.Class, '#pop')
+        ],
+        'duplicates': [
+            include('_whitespace'),
+            (r'\(', Punctuation, ('#pop', 'expression', '_expression')),
+            default('#pop')
+        ],
+        '_object-head': [
+            (r'[%s]>' % _dash, Punctuation),
+            (r'(class|has|private|with)\b', Keyword.Declaration, '#pop'),
+            include('_global')
+        ],
+        'object-body': [
+            include('_whitespace'),
+            (r';', Punctuation, '#pop:2'),
+            (r',', Punctuation),
+            (r'class\b', Keyword.Declaration, 'class-segment'),
+            (r'(has|private|with)\b', Keyword.Declaration),
+            (r':', Error),
+            default(('_object-expression', '_expression'))
+        ],
+        'class-segment': [
+            include('_whitespace'),
+            (r'(?=[,;]|(class|has|private|with)\b)', Text, '#pop'),
+            (_name, Name.Class),
+            default('value')
+        ],
+        # Extend, Verb
+        'grammar': [
+            include('_whitespace'),
+            (r'=', Punctuation, ('#pop', 'default')),
+            (r'\*', Punctuation, ('#pop', 'grammar-line')),
+            default('_directive-keyword')
+        ],
+        'grammar-line': [
+            include('_whitespace'),
+            (r';', Punctuation, '#pop'),
+            (r'[/*]', Punctuation),
+            (r'[%s]>' % _dash, Punctuation, 'value'),
+            (r'(noun|scope)\b', Keyword, '=routine'),
+            default('_directive-keyword')
+        ],
+        '=routine': [
+            include('_whitespace'),
+            (r'=', Punctuation, 'routine-name?'),
+            default('#pop')
+        ],
+        # Import
+        'manifest': [
+            include('_whitespace'),
+            (r';', Punctuation, '#pop'),
+            (r',', Punctuation),
+            (r'(?i)global\b', Keyword, '_global'),
+            default('_global')
+        ],
+        # Include, Link, Message
+        'diagnostic': [
+            include('_whitespace'),
+            (r'[%s]' % _dquote, String.Double, ('#pop', 'message-string')),
+            default(('#pop', 'before-plain-string?', 'directive-keyword?'))
+        ],
+        'before-plain-string?': [
+            include('_whitespace'),
+            (r'[%s]' % _dquote, String.Double, ('#pop', 'plain-string')),
+            default('#pop')
+        ],
+        'message-string': [
+            (r'[~^]+', String.Escape),
+            include('plain-string')
+        ],
+
+        # Keywords used in directives
+        '_directive-keyword!': [
+            include('_whitespace'),
+            (words((
+                'additive', 'alias', 'buffer', 'class', 'creature', 'data', 'error', 'fatalerror',
+                'first', 'has', 'held', 'individual', 'initial', 'initstr', 'last', 'long', 'meta',
+                'multi', 'multiexcept', 'multiheld', 'multiinside', 'noun', 'number', 'only',
+                'private', 'replace', 'reverse', 'scope', 'score', 'special', 'string', 'table',
+                'terminating', 'time', 'topic', 'warning', 'with'), suffix=r'\b'),
+             Keyword, '#pop'),
+            (r'static\b', Keyword),
+            (r'[%s]{1,2}>|[+=]' % _dash, Punctuation, '#pop')
+        ],
+        '_directive-keyword': [
+            include('_directive-keyword!'),
+            include('value')
+        ],
+        'directive-keyword?': [
+            include('_directive-keyword!'),
+            default('#pop')
+        ],
+        'property-keyword*': [
+            include('_whitespace'),
+            (words(('additive', 'individual', 'long'),
+                suffix=r'\b(?=(\s*|(![^%s]*[%s]))*[_a-zA-Z])' % (_newline, _newline)),
+             Keyword),
+            default('#pop')
+        ],
+        'trace-keyword?': [
+            include('_whitespace'),
+            (words((
+                'assembly', 'dictionary', 'expressions', 'lines', 'linker',
+                'objects', 'off', 'on', 'symbols', 'tokens', 'verbs'), suffix=r'\b'),
+             Keyword, '#pop'),
+            default('#pop')
+        ],
+
+        # Statements
+        'statements': [
+            include('_whitespace'),
+            (r'\]', Punctuation, '#pop'),
+            (r'[;{}]', Punctuation),
+            (words((
+                'box', 'break', 'continue', 'default', 'give', 'inversion',
+                'new_line', 'quit', 'read', 'remove', 'return', 'rfalse', 'rtrue',
+                'spaces', 'string', 'until'), suffix=r'\b'),
+             Keyword, 'default'),
+            (r'(do|else)\b', Keyword),
+            (r'(font|style)\b', Keyword,
+             ('default', 'miscellaneous-keyword?')),
+            (r'for\b', Keyword, ('for', '(?')),
+            (r'(if|switch|while)', Keyword,
+             ('expression', '_expression', '(?')),
+            (r'(jump|save|restore)\b', Keyword, ('default', 'label?')),
+            (r'objectloop\b', Keyword,
+             ('_keyword-expression', 'variable?', '(?')),
+            (r'print(_ret)?\b|(?=[%s])' % _dquote, Keyword, 'print-list'),
+            (r'\.', Name.Label, 'label?'),
+            (r'@', Keyword, 'opcode'),
+            (r'#(?![agrnw]\$|#)', Punctuation, 'directive'),
+            (r'<', Punctuation, 'default'),
+            (r'move\b', Keyword,
+             ('default', '_keyword-expression', '_expression')),
+            default(('default', '_keyword-expression', '_expression'))
+        ],
+        'miscellaneous-keyword?': [
+            include('_whitespace'),
+            (r'(bold|fixed|from|near|off|on|reverse|roman|to|underline)\b',
+             Keyword, '#pop'),
+            (r'(a|A|an|address|char|name|number|object|property|string|the|'
+             r'The)\b(?=(\s+|(![^%s]*))*\))' % _newline, Keyword.Pseudo,
+             '#pop'),
+            (r'%s(?=(\s+|(![^%s]*))*\))' % (_name, _newline), Name.Function,
+             '#pop'),
+            default('#pop')
+        ],
+        '(?': [
+            include('_whitespace'),
+            (r'\(', Punctuation, '#pop'),
+            default('#pop')
+        ],
+        'for': [
+            include('_whitespace'),
+            (r';', Punctuation, ('_for-expression', '_expression')),
+            default(('_for-expression', '_expression'))
+        ],
+        'print-list': [
+            include('_whitespace'),
+            (r';', Punctuation, '#pop'),
+            (r':', Error),
+            default(('_list-expression', '_expression', '_list-expression', 'form'))
+        ],
+        'form': [
+            include('_whitespace'),
+            (r'\(', Punctuation, ('#pop', 'miscellaneous-keyword?')),
+            default('#pop')
+        ],
+
+        # Assembly
+        'opcode': [
+            include('_whitespace'),
+            (r'[%s]' % _dquote, String.Double, ('operands', 'plain-string')),
+            (_name, Keyword, 'operands')
+        ],
+        'operands': [
+            (r':', Error),
+            default(('_assembly-expression', '_expression'))
+        ]
+    }
+
+    def get_tokens_unprocessed(self, text):
+        # 'in' is either a keyword or an operator.
+        # If the token two tokens after 'in' is ')', 'in' is a keyword:
+        #   objectloop(a in b)
+        # Otherwise, it is an operator:
+        #   objectloop(a in b && true)
+        objectloop_queue = []
+        objectloop_token_count = -1
+        previous_token = None
+        for index, token, value in RegexLexer.get_tokens_unprocessed(self,
+                                                                     text):
+            if previous_token is Name.Variable and value == 'in':
+                objectloop_queue = [[index, token, value]]
+                objectloop_token_count = 2
+            elif objectloop_token_count > 0:
+                if token not in Comment and token not in Text:
+                    objectloop_token_count -= 1
+                objectloop_queue.append((index, token, value))
+            else:
+                if objectloop_token_count == 0:
+                    if objectloop_queue[-1][2] == ')':
+                        objectloop_queue[0][1] = Keyword
+                    while objectloop_queue:
+                        yield objectloop_queue.pop(0)
+                    objectloop_token_count = -1
+                yield index, token, value
+            if token not in Comment and token not in Text:
+                previous_token = token
+        while objectloop_queue:
+            yield objectloop_queue.pop(0)
+
+    def analyse_text(text):
+        """We try to find a keyword which seem relatively common, unfortunately
+        there is a decent overlap with Smalltalk keywords otherwise here.."""
+        result = 0
+        if re.search('\borigsource\b', text, re.IGNORECASE):
+            result += 0.05
+
+        return result
+
+
+class Inform7Lexer(RegexLexer):
+    """
+    For Inform 7 source code.
+
+    .. versionadded:: 2.0
+    """
+
+    name = 'Inform 7'
+    url = 'http://inform7.com/'
+    aliases = ['inform7', 'i7']
+    filenames = ['*.ni', '*.i7x']
+
+    flags = re.MULTILINE | re.DOTALL
+
+    _dash = Inform6Lexer._dash
+    _dquote = Inform6Lexer._dquote
+    _newline = Inform6Lexer._newline
+    _start = r'\A|(?<=[%s])' % _newline
+
+    # There are three variants of Inform 7, differing in how to
+    # interpret at signs and braces in I6T. In top-level inclusions, at
+    # signs in the first column are inweb syntax. In phrase definitions
+    # and use options, tokens in braces are treated as I7. Use options
+    # also interpret "{N}".
+    tokens = {}
+    token_variants = ['+i6t-not-inline', '+i6t-inline', '+i6t-use-option']
+
+    for level in token_variants:
+        tokens[level] = {
+            '+i6-root': list(Inform6Lexer.tokens['root']),
+            '+i6t-root': [  # For Inform6TemplateLexer
+                (r'[^%s]*' % Inform6Lexer._newline, Comment.Preproc,
+                 ('directive', '+p'))
+            ],
+            'root': [
+                (r'(\|?\s)+', Text),
+                (r'\[', Comment.Multiline, '+comment'),
+                (r'[%s]' % _dquote, Generic.Heading,
+                 ('+main', '+titling', '+titling-string')),
+                default(('+main', '+heading?'))
+            ],
+            '+titling-string': [
+                (r'[^%s]+' % _dquote, Generic.Heading),
+                (r'[%s]' % _dquote, Generic.Heading, '#pop')
+            ],
+            '+titling': [
+                (r'\[', Comment.Multiline, '+comment'),
+                (r'[^%s.;:|%s]+' % (_dquote, _newline), Generic.Heading),
+                (r'[%s]' % _dquote, Generic.Heading, '+titling-string'),
+                (r'[%s]{2}|(?<=[\s%s])\|[\s%s]' % (_newline, _dquote, _dquote),
+                 Text, ('#pop', '+heading?')),
+                (r'[.;:]|(?<=[\s%s])\|' % _dquote, Text, '#pop'),
+                (r'[|%s]' % _newline, Generic.Heading)
+            ],
+            '+main': [
+                (r'(?i)[^%s:a\[(|%s]+' % (_dquote, _newline), Text),
+                (r'[%s]' % _dquote, String.Double, '+text'),
+                (r':', Text, '+phrase-definition'),
+                (r'(?i)\bas\b', Text, '+use-option'),
+                (r'\[', Comment.Multiline, '+comment'),
+                (r'(\([%s])(.*?)([%s]\))' % (_dash, _dash),
+                 bygroups(Punctuation,
+                          using(this, state=('+i6-root', 'directive'),
+                                i6t='+i6t-not-inline'), Punctuation)),
+                (r'(%s|(?<=[\s;:.%s]))\|\s|[%s]{2,}' %
+                 (_start, _dquote, _newline), Text, '+heading?'),
+                (r'(?i)[a(|%s]' % _newline, Text)
+            ],
+            '+phrase-definition': [
+                (r'\s+', Text),
+                (r'\[', Comment.Multiline, '+comment'),
+                (r'(\([%s])(.*?)([%s]\))' % (_dash, _dash),
+                 bygroups(Punctuation,
+                          using(this, state=('+i6-root', 'directive',
+                                             'default', 'statements'),
+                                i6t='+i6t-inline'), Punctuation), '#pop'),
+                default('#pop')
+            ],
+            '+use-option': [
+                (r'\s+', Text),
+                (r'\[', Comment.Multiline, '+comment'),
+                (r'(\([%s])(.*?)([%s]\))' % (_dash, _dash),
+                 bygroups(Punctuation,
+                          using(this, state=('+i6-root', 'directive'),
+                                i6t='+i6t-use-option'), Punctuation), '#pop'),
+                default('#pop')
+            ],
+            '+comment': [
+                (r'[^\[\]]+', Comment.Multiline),
+                (r'\[', Comment.Multiline, '#push'),
+                (r'\]', Comment.Multiline, '#pop')
+            ],
+            '+text': [
+                (r'[^\[%s]+' % _dquote, String.Double),
+                (r'\[.*?\]', String.Interpol),
+                (r'[%s]' % _dquote, String.Double, '#pop')
+            ],
+            '+heading?': [
+                (r'(\|?\s)+', Text),
+                (r'\[', Comment.Multiline, '+comment'),
+                (r'[%s]{4}\s+' % _dash, Text, '+documentation-heading'),
+                (r'[%s]{1,3}' % _dash, Text),
+                (r'(?i)(volume|book|part|chapter|section)\b[^%s]*' % _newline,
+                 Generic.Heading, '#pop'),
+                default('#pop')
+            ],
+            '+documentation-heading': [
+                (r'\s+', Text),
+                (r'\[', Comment.Multiline, '+comment'),
+                (r'(?i)documentation\s+', Text, '+documentation-heading2'),
+                default('#pop')
+            ],
+            '+documentation-heading2': [
+                (r'\s+', Text),
+                (r'\[', Comment.Multiline, '+comment'),
+                (r'[%s]{4}\s' % _dash, Text, '+documentation'),
+                default('#pop:2')
+            ],
+            '+documentation': [
+                (r'(?i)(%s)\s*(chapter|example)\s*:[^%s]*' %
+                 (_start, _newline), Generic.Heading),
+                (r'(?i)(%s)\s*section\s*:[^%s]*' % (_start, _newline),
+                 Generic.Subheading),
+                (r'((%s)\t.*?[%s])+' % (_start, _newline),
+                 using(this, state='+main')),
+                (r'[^%s\[]+|[%s\[]' % (_newline, _newline), Text),
+                (r'\[', Comment.Multiline, '+comment'),
+            ],
+            '+i6t-not-inline': [
+                (r'(%s)@c( .*?)?([%s]|\Z)' % (_start, _newline),
+                 Comment.Preproc),
+                (r'(%s)@([%s]+|Purpose:)[^%s]*' % (_start, _dash, _newline),
+                 Comment.Preproc),
+                (r'(%s)@p( .*?)?([%s]|\Z)' % (_start, _newline),
+                 Generic.Heading, '+p')
+            ],
+            '+i6t-use-option': [
+                include('+i6t-not-inline'),
+                (r'(\{)(N)(\})', bygroups(Punctuation, Text, Punctuation))
+            ],
+            '+i6t-inline': [
+                (r'(\{)(\S[^}]*)?(\})',
+                 bygroups(Punctuation, using(this, state='+main'),
+                          Punctuation))
+            ],
+            '+i6t': [
+                (r'(\{[%s])(![^}]*)(\}?)' % _dash,
+                 bygroups(Punctuation, Comment.Single, Punctuation)),
+                (r'(\{[%s])(lines)(:)([^}]*)(\}?)' % _dash,
+                 bygroups(Punctuation, Keyword, Punctuation, Text,
+                          Punctuation), '+lines'),
+                (r'(\{[%s])([^:}]*)(:?)([^}]*)(\}?)' % _dash,
+                 bygroups(Punctuation, Keyword, Punctuation, Text,
+                          Punctuation)),
+                (r'(\(\+)(.*?)(\+\)|\Z)',
+                 bygroups(Punctuation, using(this, state='+main'),
+                          Punctuation))
+            ],
+            '+p': [
+                (r'[^@]+', Comment.Preproc),
+                (r'(%s)@c( .*?)?([%s]|\Z)' % (_start, _newline),
+                 Comment.Preproc, '#pop'),
+                (r'(%s)@([%s]|Purpose:)' % (_start, _dash), Comment.Preproc),
+                (r'(%s)@p( .*?)?([%s]|\Z)' % (_start, _newline),
+                 Generic.Heading),
+                (r'@', Comment.Preproc)
+            ],
+            '+lines': [
+                (r'(%s)@c( .*?)?([%s]|\Z)' % (_start, _newline),
+                 Comment.Preproc),
+                (r'(%s)@([%s]|Purpose:)[^%s]*' % (_start, _dash, _newline),
+                 Comment.Preproc),
+                (r'(%s)@p( .*?)?([%s]|\Z)' % (_start, _newline),
+                 Generic.Heading, '+p'),
+                (r'(%s)@\w*[ %s]' % (_start, _newline), Keyword),
+                (r'![^%s]*' % _newline, Comment.Single),
+                (r'(\{)([%s]endlines)(\})' % _dash,
+                 bygroups(Punctuation, Keyword, Punctuation), '#pop'),
+                (r'[^@!{]+?([%s]|\Z)|.' % _newline, Text)
+            ]
+        }
+        # Inform 7 can include snippets of Inform 6 template language,
+        # so all of Inform6Lexer's states are copied here, with
+        # modifications to account for template syntax. Inform7Lexer's
+        # own states begin with '+' to avoid name conflicts. Some of
+        # Inform6Lexer's states begin with '_': these are not modified.
+        # They deal with template syntax either by including modified
+        # states, or by matching r'' then pushing to modified states.
+        for token in Inform6Lexer.tokens:
+            if token == 'root':
+                continue
+            tokens[level][token] = list(Inform6Lexer.tokens[token])
+            if not token.startswith('_'):
+                tokens[level][token][:0] = [include('+i6t'), include(level)]
+
+    def __init__(self, **options):
+        level = options.get('i6t', '+i6t-not-inline')
+        if level not in self._all_tokens:
+            self._tokens = self.__class__.process_tokendef(level)
+        else:
+            self._tokens = self._all_tokens[level]
+        RegexLexer.__init__(self, **options)
+
+
+class Inform6TemplateLexer(Inform7Lexer):
+    """
+    For Inform 6 template code.
+
+    .. versionadded:: 2.0
+    """
+
+    name = 'Inform 6 template'
+    aliases = ['i6t']
+    filenames = ['*.i6t']
+
+    def get_tokens_unprocessed(self, text, stack=('+i6t-root',)):
+        return Inform7Lexer.get_tokens_unprocessed(self, text, stack)
+
+
+class Tads3Lexer(RegexLexer):
+    """
+    For TADS 3 source code.
+    """
+
+    name = 'TADS 3'
+    aliases = ['tads3']
+    filenames = ['*.t']
+
+    flags = re.DOTALL | re.MULTILINE
+
+    _comment_single = r'(?://(?:[^\\\n]|\\+[\w\W])*$)'
+    _comment_multiline = r'(?:/\*(?:[^*]|\*(?!/))*\*/)'
+    _escape = (r'(?:\\(?:[\n\\<>"\'^v bnrt]|u[\da-fA-F]{,4}|x[\da-fA-F]{,2}|'
+               r'[0-3]?[0-7]{1,2}))')
+    _name = r'(?:[_a-zA-Z]\w*)'
+    _no_quote = r'(?=\s|\\?>)'
+    _operator = (r'(?:&&|\|\||\+\+|--|\?\?|::|[.,@\[\]~]|'
+                 r'(?:[=+\-*/%!&|^]|<<?|>>?>?)=?)')
+    _ws = r'(?:\\|\s|%s|%s)' % (_comment_single, _comment_multiline)
+    _ws_pp = r'(?:\\\n|[^\S\n]|%s|%s)' % (_comment_single, _comment_multiline)
+
+    def _make_string_state(triple, double, verbatim=None, _escape=_escape):
+        if verbatim:
+            verbatim = ''.join(['(?:%s|%s)' % (re.escape(c.lower()),
+                                               re.escape(c.upper()))
+                                for c in verbatim])
+        char = r'"' if double else r"'"
+        token = String.Double if double else String.Single
+        escaped_quotes = r'+|%s(?!%s{2})' % (char, char) if triple else r''
+        prefix = '%s%s' % ('t' if triple else '', 'd' if double else 's')
+        tag_state_name = '%sqt' % prefix
+        state = []
+        if triple:
+            state += [
+                (r'%s{3,}' % char, token, '#pop'),
+                (r'\\%s+' % char, String.Escape),
+                (char, token)
+            ]
+        else:
+            state.append((char, token, '#pop'))
+        state += [
+            include('s/verbatim'),
+            (r'[^\\<&{}%s]+' % char, token)
+        ]
+        if verbatim:
+            # This regex can't use `(?i)` because escape sequences are
+            # case-sensitive. `<\XMP>` works; `<\xmp>` doesn't.
+            state.append((r'\\?<(/|\\\\|(?!%s)\\)%s(?=[\s=>])' %
+                          (_escape, verbatim),
+                          Name.Tag, ('#pop', '%sqs' % prefix, tag_state_name)))
+        else:
+            state += [
+                (r'\\?<!([^><\\%s]|<(?!<)|\\%s%s|%s|\\.)*>?' %
+                 (char, char, escaped_quotes, _escape), Comment.Multiline),
+                (r'(?i)\\?<listing(?=[\s=>]|\\>)', Name.Tag,
+                 ('#pop', '%sqs/listing' % prefix, tag_state_name)),
+                (r'(?i)\\?<xmp(?=[\s=>]|\\>)', Name.Tag,
+                 ('#pop', '%sqs/xmp' % prefix, tag_state_name)),
+                (r'\\?<([^\s=><\\%s]|<(?!<)|\\%s%s|%s|\\.)*' %
+                 (char, char, escaped_quotes, _escape), Name.Tag,
+                 tag_state_name),
+                include('s/entity')
+            ]
+        state += [
+            include('s/escape'),
+            (r'\{([^}<\\%s]|<(?!<)|\\%s%s|%s|\\.)*\}' %
+             (char, char, escaped_quotes, _escape), String.Interpol),
+            (r'[\\&{}<]', token)
+        ]
+        return state
+
+    def _make_tag_state(triple, double, _escape=_escape):
+        char = r'"' if double else r"'"
+        quantifier = r'{3,}' if triple else r''
+        state_name = '%s%sqt' % ('t' if triple else '', 'd' if double else 's')
+        token = String.Double if double else String.Single
+        escaped_quotes = r'+|%s(?!%s{2})' % (char, char) if triple else r''
+        return [
+            (r'%s%s' % (char, quantifier), token, '#pop:2'),
+            (r'(\s|\\\n)+', Text),
+            (r'(=)(\\?")', bygroups(Punctuation, String.Double),
+             'dqs/%s' % state_name),
+            (r"(=)(\\?')", bygroups(Punctuation, String.Single),
+             'sqs/%s' % state_name),
+            (r'=', Punctuation, 'uqs/%s' % state_name),
+            (r'\\?>', Name.Tag, '#pop'),
+            (r'\{([^}<\\%s]|<(?!<)|\\%s%s|%s|\\.)*\}' %
+             (char, char, escaped_quotes, _escape), String.Interpol),
+            (r'([^\s=><\\%s]|<(?!<)|\\%s%s|%s|\\.)+' %
+             (char, char, escaped_quotes, _escape), Name.Attribute),
+            include('s/escape'),
+            include('s/verbatim'),
+            include('s/entity'),
+            (r'[\\{}&]', Name.Attribute)
+        ]
+
+    def _make_attribute_value_state(terminator, host_triple, host_double,
+                                    _escape=_escape):
+        token = (String.Double if terminator == r'"' else
+                 String.Single if terminator == r"'" else String.Other)
+        host_char = r'"' if host_double else r"'"
+        host_quantifier = r'{3,}' if host_triple else r''
+        host_token = String.Double if host_double else String.Single
+        escaped_quotes = (r'+|%s(?!%s{2})' % (host_char, host_char)
+                          if host_triple else r'')
+        return [
+            (r'%s%s' % (host_char, host_quantifier), host_token, '#pop:3'),
+            (r'%s%s' % (r'' if token is String.Other else r'\\?', terminator),
+             token, '#pop'),
+            include('s/verbatim'),
+            include('s/entity'),
+            (r'\{([^}<\\%s]|<(?!<)|\\%s%s|%s|\\.)*\}' %
+             (host_char, host_char, escaped_quotes, _escape), String.Interpol),
+            (r'([^\s"\'<%s{}\\&])+' % (r'>' if token is String.Other else r''),
+             token),
+            include('s/escape'),
+            (r'["\'\s&{<}\\]', token)
+        ]
+
+    tokens = {
+        'root': [
+            ('\ufeff', Text),
+            (r'\{', Punctuation, 'object-body'),
+            (r';+', Punctuation),
+            (r'(?=(argcount|break|case|catch|continue|default|definingobj|'
+             r'delegated|do|else|for|foreach|finally|goto|if|inherited|'
+             r'invokee|local|nil|new|operator|replaced|return|self|switch|'
+             r'targetobj|targetprop|throw|true|try|while)\b)', Text, 'block'),
+            (r'(%s)(%s*)(\()' % (_name, _ws),
+             bygroups(Name.Function, using(this, state='whitespace'),
+                      Punctuation),
+             ('block?/root', 'more/parameters', 'main/parameters')),
+            include('whitespace'),
+            (r'\++', Punctuation),
+            (r'[^\s!"%-(*->@-_a-z{-~]+', Error),  # Averts an infinite loop
+            (r'(?!\Z)', Text, 'main/root')
+        ],
+        'main/root': [
+            include('main/basic'),
+            default(('#pop', 'object-body/no-braces', 'classes', 'class'))
+        ],
+        'object-body/no-braces': [
+            (r';', Punctuation, '#pop'),
+            (r'\{', Punctuation, ('#pop', 'object-body')),
+            include('object-body')
+        ],
+        'object-body': [
+            (r';', Punctuation),
+            (r'\{', Punctuation, '#push'),
+            (r'\}', Punctuation, '#pop'),
+            (r':', Punctuation, ('classes', 'class')),
+            (r'(%s?)(%s*)(\()' % (_name, _ws),
+             bygroups(Name.Function, using(this, state='whitespace'),
+                      Punctuation),
+             ('block?', 'more/parameters', 'main/parameters')),
+            (r'(%s)(%s*)(\{)' % (_name, _ws),
+             bygroups(Name.Function, using(this, state='whitespace'),
+                      Punctuation), 'block'),
+            (r'(%s)(%s*)(:)' % (_name, _ws),
+             bygroups(Name.Variable, using(this, state='whitespace'),
+                      Punctuation),
+             ('object-body/no-braces', 'classes', 'class')),
+            include('whitespace'),
+            (r'->|%s' % _operator, Punctuation, 'main'),
+            default('main/object-body')
+        ],
+        'main/object-body': [
+            include('main/basic'),
+            (r'(%s)(%s*)(=?)' % (_name, _ws),
+             bygroups(Name.Variable, using(this, state='whitespace'),
+                      Punctuation), ('#pop', 'more', 'main')),
+            default('#pop:2')
+        ],
+        'block?/root': [
+            (r'\{', Punctuation, ('#pop', 'block')),
+            include('whitespace'),
+            (r'(?=[\[\'"<(:])', Text,  # It might be a VerbRule macro.
+             ('#pop', 'object-body/no-braces', 'grammar', 'grammar-rules')),
+            # It might be a macro like DefineAction.
+            default(('#pop', 'object-body/no-braces'))
+        ],
+        'block?': [
+            (r'\{', Punctuation, ('#pop', 'block')),
+            include('whitespace'),
+            default('#pop')
+        ],
+        'block/basic': [
+            (r'[;:]+', Punctuation),
+            (r'\{', Punctuation, '#push'),
+            (r'\}', Punctuation, '#pop'),
+            (r'default\b', Keyword.Reserved),
+            (r'(%s)(%s*)(:)' % (_name, _ws),
+             bygroups(Name.Label, using(this, state='whitespace'),
+                      Punctuation)),
+            include('whitespace')
+        ],
+        'block': [
+            include('block/basic'),
+            (r'(?!\Z)', Text, ('more', 'main'))
+        ],
+        'block/embed': [
+            (r'>>', String.Interpol, '#pop'),
+            include('block/basic'),
+            (r'(?!\Z)', Text, ('more/embed', 'main'))
+        ],
+        'main/basic': [
+            include('whitespace'),
+            (r'\(', Punctuation, ('#pop', 'more', 'main')),
+            (r'\[', Punctuation, ('#pop', 'more/list', 'main')),
+            (r'\{', Punctuation, ('#pop', 'more/inner', 'main/inner',
+                                  'more/parameters', 'main/parameters')),
+            (r'\*|\.{3}', Punctuation, '#pop'),
+            (r'(?i)0x[\da-f]+', Number.Hex, '#pop'),
+            (r'(\d+\.(?!\.)\d*|\.\d+)([eE][-+]?\d+)?|\d+[eE][-+]?\d+',
+             Number.Float, '#pop'),
+            (r'0[0-7]+', Number.Oct, '#pop'),
+            (r'\d+', Number.Integer, '#pop'),
+            (r'"""', String.Double, ('#pop', 'tdqs')),
+            (r"'''", String.Single, ('#pop', 'tsqs')),
+            (r'"', String.Double, ('#pop', 'dqs')),
+            (r"'", String.Single, ('#pop', 'sqs')),
+            (r'R"""', String.Regex, ('#pop', 'tdqr')),
+            (r"R'''", String.Regex, ('#pop', 'tsqr')),
+            (r'R"', String.Regex, ('#pop', 'dqr')),
+            (r"R'", String.Regex, ('#pop', 'sqr')),
+            # Two-token keywords
+            (r'(extern)(%s+)(object\b)' % _ws,
+             bygroups(Keyword.Reserved, using(this, state='whitespace'),
+                      Keyword.Reserved)),
+            (r'(function|method)(%s*)(\()' % _ws,
+             bygroups(Keyword.Reserved, using(this, state='whitespace'),
+                      Punctuation),
+             ('#pop', 'block?', 'more/parameters', 'main/parameters')),
+            (r'(modify)(%s+)(grammar\b)' % _ws,
+             bygroups(Keyword.Reserved, using(this, state='whitespace'),
+                      Keyword.Reserved),
+             ('#pop', 'object-body/no-braces', ':', 'grammar')),
+            (r'(new)(%s+(?=(?:function|method)\b))' % _ws,
+             bygroups(Keyword.Reserved, using(this, state='whitespace'))),
+            (r'(object)(%s+)(template\b)' % _ws,
+             bygroups(Keyword.Reserved, using(this, state='whitespace'),
+                      Keyword.Reserved), ('#pop', 'template')),
+            (r'(string)(%s+)(template\b)' % _ws,
+             bygroups(Keyword, using(this, state='whitespace'),
+                      Keyword.Reserved), ('#pop', 'function-name')),
+            # Keywords
+            (r'(argcount|definingobj|invokee|replaced|targetobj|targetprop)\b',
+             Name.Builtin, '#pop'),
+            (r'(break|continue|goto)\b', Keyword.Reserved, ('#pop', 'label')),
+            (r'(case|extern|if|intrinsic|return|static|while)\b',
+             Keyword.Reserved),
+            (r'catch\b', Keyword.Reserved, ('#pop', 'catch')),
+            (r'class\b', Keyword.Reserved,
+             ('#pop', 'object-body/no-braces', 'class')),
+            (r'(default|do|else|finally|try)\b', Keyword.Reserved, '#pop'),
+            (r'(dictionary|property)\b', Keyword.Reserved,
+             ('#pop', 'constants')),
+            (r'enum\b', Keyword.Reserved, ('#pop', 'enum')),
+            (r'export\b', Keyword.Reserved, ('#pop', 'main')),
+            (r'(for|foreach)\b', Keyword.Reserved,
+             ('#pop', 'more/inner', 'main/inner')),
+            (r'(function|method)\b', Keyword.Reserved,
+             ('#pop', 'block?', 'function-name')),
+            (r'grammar\b', Keyword.Reserved,
+             ('#pop', 'object-body/no-braces', 'grammar')),
+            (r'inherited\b', Keyword.Reserved, ('#pop', 'inherited')),
+            (r'local\b', Keyword.Reserved,
+             ('#pop', 'more/local', 'main/local')),
+            (r'(modify|replace|switch|throw|transient)\b', Keyword.Reserved,
+             '#pop'),
+            (r'new\b', Keyword.Reserved, ('#pop', 'class')),
+            (r'(nil|true)\b', Keyword.Constant, '#pop'),
+            (r'object\b', Keyword.Reserved, ('#pop', 'object-body/no-braces')),
+            (r'operator\b', Keyword.Reserved, ('#pop', 'operator')),
+            (r'propertyset\b', Keyword.Reserved,
+             ('#pop', 'propertyset', 'main')),
+            (r'self\b', Name.Builtin.Pseudo, '#pop'),
+            (r'template\b', Keyword.Reserved, ('#pop', 'template')),
+            # Operators
+            (r'(__objref|defined)(%s*)(\()' % _ws,
+             bygroups(Operator.Word, using(this, state='whitespace'),
+                      Operator), ('#pop', 'more/__objref', 'main')),
+            (r'delegated\b', Operator.Word),
+            # Compiler-defined macros and built-in properties
+            (r'(__DATE__|__DEBUG|__LINE__|__FILE__|'
+             r'__TADS_MACRO_FORMAT_VERSION|__TADS_SYS_\w*|__TADS_SYSTEM_NAME|'
+             r'__TADS_VERSION_MAJOR|__TADS_VERSION_MINOR|__TADS3|__TIME__|'
+             r'construct|finalize|grammarInfo|grammarTag|lexicalParent|'
+             r'miscVocab|sourceTextGroup|sourceTextGroupName|'
+             r'sourceTextGroupOrder|sourceTextOrder)\b', Name.Builtin, '#pop')
+        ],
+        'main': [
+            include('main/basic'),
+            (_name, Name, '#pop'),
+            default('#pop')
+        ],
+        'more/basic': [
+            (r'\(', Punctuation, ('more/list', 'main')),
+            (r'\[', Punctuation, ('more', 'main')),
+            (r'\.{3}', Punctuation),
+            (r'->|\.\.', Punctuation, 'main'),
+            (r'(?=;)|[:)\]]', Punctuation, '#pop'),
+            include('whitespace'),
+            (_operator, Operator, 'main'),
+            (r'\?', Operator, ('main', 'more/conditional', 'main')),
+            (r'(is|not)(%s+)(in\b)' % _ws,
+             bygroups(Operator.Word, using(this, state='whitespace'),
+                      Operator.Word)),
+            (r'[^\s!"%-_a-z{-~]+', Error)  # Averts an infinite loop
+        ],
+        'more': [
+            include('more/basic'),
+            default('#pop')
+        ],
+        # Then expression (conditional operator)
+        'more/conditional': [
+            (r':(?!:)', Operator, '#pop'),
+            include('more')
+        ],
+        # Embedded expressions
+        'more/embed': [
+            (r'>>', String.Interpol, '#pop:2'),
+            include('more')
+        ],
+        # For/foreach loop initializer or short-form anonymous function
+        'main/inner': [
+            (r'\(', Punctuation, ('#pop', 'more/inner', 'main/inner')),
+            (r'local\b', Keyword.Reserved, ('#pop', 'main/local')),
+            include('main')
+        ],
+        'more/inner': [
+            (r'\}', Punctuation, '#pop'),
+            (r',', Punctuation, 'main/inner'),
+            (r'(in|step)\b', Keyword, 'main/inner'),
+            include('more')
+        ],
+        # Local
+        'main/local': [
+            (_name, Name.Variable, '#pop'),
+            include('whitespace')
+        ],
+        'more/local': [
+            (r',', Punctuation, 'main/local'),
+            include('more')
+        ],
+        # List
+        'more/list': [
+            (r'[,:]', Punctuation, 'main'),
+            include('more')
+        ],
+        # Parameter list
+        'main/parameters': [
+            (r'(%s)(%s*)(?=:)' % (_name, _ws),
+             bygroups(Name.Variable, using(this, state='whitespace')), '#pop'),
+            (r'(%s)(%s+)(%s)' % (_name, _ws, _name),
+             bygroups(Name.Class, using(this, state='whitespace'),
+                      Name.Variable), '#pop'),
+            (r'\[+', Punctuation),
+            include('main/basic'),
+            (_name, Name.Variable, '#pop'),
+            default('#pop')
+        ],
+        'more/parameters': [
+            (r'(:)(%s*(?=[?=,:)]))' % _ws,
+             bygroups(Punctuation, using(this, state='whitespace'))),
+            (r'[?\]]+', Punctuation),
+            (r'[:)]', Punctuation, ('#pop', 'multimethod?')),
+            (r',', Punctuation, 'main/parameters'),
+            (r'=', Punctuation, ('more/parameter', 'main')),
+            include('more')
+        ],
+        'more/parameter': [
+            (r'(?=[,)])', Text, '#pop'),
+            include('more')
+        ],
+        'multimethod?': [
+            (r'multimethod\b', Keyword, '#pop'),
+            include('whitespace'),
+            default('#pop')
+        ],
+
+        # Statements and expressions
+        'more/__objref': [
+            (r',', Punctuation, 'mode'),
+            (r'\)', Operator, '#pop'),
+            include('more')
+        ],
+        'mode': [
+            (r'(error|warn)\b', Keyword, '#pop'),
+            include('whitespace')
+        ],
+        'catch': [
+            (r'\(+', Punctuation),
+            (_name, Name.Exception, ('#pop', 'variables')),
+            include('whitespace')
+        ],
+        'enum': [
+            include('whitespace'),
+            (r'token\b', Keyword, ('#pop', 'constants')),
+            default(('#pop', 'constants'))
+        ],
+        'grammar': [
+            (r'\)+', Punctuation),
+            (r'\(', Punctuation, 'grammar-tag'),
+            (r':', Punctuation, 'grammar-rules'),
+            (_name, Name.Class),
+            include('whitespace')
+        ],
+        'grammar-tag': [
+            include('whitespace'),
+            (r'"""([^\\"<]|""?(?!")|\\"+|\\.|<(?!<))+("{3,}|<<)|'
+             r'R"""([^\\"]|""?(?!")|\\"+|\\.)+"{3,}|'
+             r"'''([^\\'<]|''?(?!')|\\'+|\\.|<(?!<))+('{3,}|<<)|"
+             r"R'''([^\\']|''?(?!')|\\'+|\\.)+'{3,}|"
+             r'"([^\\"<]|\\.|<(?!<))+("|<<)|R"([^\\"]|\\.)+"|'
+             r"'([^\\'<]|\\.|<(?!<))+('|<<)|R'([^\\']|\\.)+'|"
+             r"([^)\s\\/]|/(?![/*]))+|\)", String.Other, '#pop')
+        ],
+        'grammar-rules': [
+            include('string'),
+            include('whitespace'),
+            (r'(\[)(%s*)(badness)' % _ws,
+             bygroups(Punctuation, using(this, state='whitespace'), Keyword),
+             'main'),
+            (r'->|%s|[()]' % _operator, Punctuation),
+            (_name, Name.Constant),
+            default('#pop:2')
+        ],
+        ':': [
+            (r':', Punctuation, '#pop')
+        ],
+        'function-name': [
+            (r'(<<([^>]|>>>|>(?!>))*>>)+', String.Interpol),
+            (r'(?=%s?%s*[({])' % (_name, _ws), Text, '#pop'),
+            (_name, Name.Function, '#pop'),
+            include('whitespace')
+        ],
+        'inherited': [
+            (r'<', Punctuation, ('#pop', 'classes', 'class')),
+            include('whitespace'),
+            (_name, Name.Class, '#pop'),
+            default('#pop')
+        ],
+        'operator': [
+            (r'negate\b', Operator.Word, '#pop'),
+            include('whitespace'),
+            (_operator, Operator),
+            default('#pop')
+        ],
+        'propertyset': [
+            (r'\(', Punctuation, ('more/parameters', 'main/parameters')),
+            (r'\{', Punctuation, ('#pop', 'object-body')),
+            include('whitespace')
+        ],
+        'template': [
+            (r'(?=;)', Text, '#pop'),
+            include('string'),
+            (r'inherited\b', Keyword.Reserved),
+            include('whitespace'),
+            (r'->|\?|%s' % _operator, Punctuation),
+            (_name, Name.Variable)
+        ],
+
+        # Identifiers
+        'class': [
+            (r'\*|\.{3}', Punctuation, '#pop'),
+            (r'object\b', Keyword.Reserved, '#pop'),
+            (r'transient\b', Keyword.Reserved),
+            (_name, Name.Class, '#pop'),
+            include('whitespace'),
+            default('#pop')
+        ],
+        'classes': [
+            (r'[:,]', Punctuation, 'class'),
+            include('whitespace'),
+            (r'>', Punctuation, '#pop'),
+            default('#pop')
+        ],
+        'constants': [
+            (r',+', Punctuation),
+            (r';', Punctuation, '#pop'),
+            (r'property\b', Keyword.Reserved),
+            (_name, Name.Constant),
+            include('whitespace')
+        ],
+        'label': [
+            (_name, Name.Label, '#pop'),
+            include('whitespace'),
+            default('#pop')
+        ],
+        'variables': [
+            (r',+', Punctuation),
+            (r'\)', Punctuation, '#pop'),
+            include('whitespace'),
+            (_name, Name.Variable)
+        ],
+
+        # Whitespace and comments
+        'whitespace': [
+            (r'^%s*#(%s|[^\n]|(?<=\\)\n)*\n?' % (_ws_pp, _comment_multiline),
+             Comment.Preproc),
+            (_comment_single, Comment.Single),
+            (_comment_multiline, Comment.Multiline),
+            (r'\\+\n+%s*#?|\n+|([^\S\n]|\\)+' % _ws_pp, Text)
+        ],
+
+        # Strings
+        'string': [
+            (r'"""', String.Double, 'tdqs'),
+            (r"'''", String.Single, 'tsqs'),
+            (r'"', String.Double, 'dqs'),
+            (r"'", String.Single, 'sqs')
+        ],
+        's/escape': [
+            (r'\{\{|\}\}|%s' % _escape, String.Escape)
+        ],
+        's/verbatim': [
+            (r'<<\s*(as\s+decreasingly\s+likely\s+outcomes|cycling|else|end|'
+             r'first\s+time|one\s+of|only|or|otherwise|'
+             r'(sticky|(then\s+)?(purely\s+)?at)\s+random|stopping|'
+             r'(then\s+)?(half\s+)?shuffled|\|\|)\s*>>', String.Interpol),
+            (r'<<(%%(_(%s|\\?.)|[\-+ ,#]|\[\d*\]?)*\d*\.?\d*(%s|\\?.)|'
+             r'\s*((else|otherwise)\s+)?(if|unless)\b)?' % (_escape, _escape),
+             String.Interpol, ('block/embed', 'more/embed', 'main'))
+        ],
+        's/entity': [
+            (r'(?i)&(#(x[\da-f]+|\d+)|[a-z][\da-z]*);?', Name.Entity)
+        ],
+        'tdqs': _make_string_state(True, True),
+        'tsqs': _make_string_state(True, False),
+        'dqs': _make_string_state(False, True),
+        'sqs': _make_string_state(False, False),
+        'tdqs/listing': _make_string_state(True, True, 'listing'),
+        'tsqs/listing': _make_string_state(True, False, 'listing'),
+        'dqs/listing': _make_string_state(False, True, 'listing'),
+        'sqs/listing': _make_string_state(False, False, 'listing'),
+        'tdqs/xmp': _make_string_state(True, True, 'xmp'),
+        'tsqs/xmp': _make_string_state(True, False, 'xmp'),
+        'dqs/xmp': _make_string_state(False, True, 'xmp'),
+        'sqs/xmp': _make_string_state(False, False, 'xmp'),
+
+        # Tags
+        'tdqt': _make_tag_state(True, True),
+        'tsqt': _make_tag_state(True, False),
+        'dqt': _make_tag_state(False, True),
+        'sqt': _make_tag_state(False, False),
+        'dqs/tdqt': _make_attribute_value_state(r'"', True, True),
+        'dqs/tsqt': _make_attribute_value_state(r'"', True, False),
+        'dqs/dqt': _make_attribute_value_state(r'"', False, True),
+        'dqs/sqt': _make_attribute_value_state(r'"', False, False),
+        'sqs/tdqt': _make_attribute_value_state(r"'", True, True),
+        'sqs/tsqt': _make_attribute_value_state(r"'", True, False),
+        'sqs/dqt': _make_attribute_value_state(r"'", False, True),
+        'sqs/sqt': _make_attribute_value_state(r"'", False, False),
+        'uqs/tdqt': _make_attribute_value_state(_no_quote, True, True),
+        'uqs/tsqt': _make_attribute_value_state(_no_quote, True, False),
+        'uqs/dqt': _make_attribute_value_state(_no_quote, False, True),
+        'uqs/sqt': _make_attribute_value_state(_no_quote, False, False),
+
+        # Regular expressions
+        'tdqr': [
+            (r'[^\\"]+', String.Regex),
+            (r'\\"*', String.Regex),
+            (r'"{3,}', String.Regex, '#pop'),
+            (r'"', String.Regex)
+        ],
+        'tsqr': [
+            (r"[^\\']+", String.Regex),
+            (r"\\'*", String.Regex),
+            (r"'{3,}", String.Regex, '#pop'),
+            (r"'", String.Regex)
+        ],
+        'dqr': [
+            (r'[^\\"]+', String.Regex),
+            (r'\\"?', String.Regex),
+            (r'"', String.Regex, '#pop')
+        ],
+        'sqr': [
+            (r"[^\\']+", String.Regex),
+            (r"\\'?", String.Regex),
+            (r"'", String.Regex, '#pop')
+        ]
+    }
+
+    def get_tokens_unprocessed(self, text, **kwargs):
+        pp = r'^%s*#%s*' % (self._ws_pp, self._ws_pp)
+        if_false_level = 0
+        for index, token, value in (
+            RegexLexer.get_tokens_unprocessed(self, text, **kwargs)):
+            if if_false_level == 0:  # Not in a false #if
+                if (token is Comment.Preproc and
+                    re.match(r'%sif%s+(0|nil)%s*$\n?' %
+                             (pp, self._ws_pp, self._ws_pp), value)):
+                    if_false_level = 1
+            else:  # In a false #if
+                if token is Comment.Preproc:
+                    if (if_false_level == 1 and
+                          re.match(r'%sel(if|se)\b' % pp, value)):
+                        if_false_level = 0
+                    elif re.match(r'%sif' % pp, value):
+                        if_false_level += 1
+                    elif re.match(r'%sendif\b' % pp, value):
+                        if_false_level -= 1
+                else:
+                    token = Comment
+            yield index, token, value
+
+    def analyse_text(text):
+        """This is a rather generic descriptive language without strong
+        identifiers. It looks like a 'GameMainDef' has to be present,
+        and/or a 'versionInfo' with an 'IFID' field."""
+        result = 0
+        if '__TADS' in text or 'GameMainDef' in text:
+            result += 0.2
+
+        # This is a fairly unique keyword which is likely used in source as well
+        if 'versionInfo' in text and 'IFID' in text:
+            result += 0.1
+
+        return result