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514 lines
23 KiB
Python
514 lines
23 KiB
Python
"""
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pygments.lexers.objective
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~~~~~~~~~~~~~~~~~~~~~~~~~
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Lexers for Objective-C family languages.
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:copyright: Copyright 2006-2025 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, include, bygroups, using, this, words, \
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inherit, default
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from pygments.token import Text, Keyword, Name, String, Operator, \
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Number, Punctuation, Literal, Comment, Whitespace
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from pygments.lexers.c_cpp import CLexer, CppLexer
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__all__ = ['ObjectiveCLexer', 'ObjectiveCppLexer', 'LogosLexer', 'SwiftLexer']
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def objective(baselexer):
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"""
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Generate a subclass of baselexer that accepts the Objective-C syntax
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extensions.
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"""
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# Have to be careful not to accidentally match JavaDoc/Doxygen syntax here,
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# since that's quite common in ordinary C/C++ files. It's OK to match
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# JavaDoc/Doxygen keywords that only apply to Objective-C, mind.
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#
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# The upshot of this is that we CANNOT match @class or @interface
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_oc_keywords = re.compile(r'@(?:end|implementation|protocol)')
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# Matches [ <ws>? identifier <ws> ( identifier <ws>? ] | identifier? : )
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# (note the identifier is *optional* when there is a ':'!)
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_oc_message = re.compile(r'\[\s*[a-zA-Z_]\w*\s+'
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r'(?:[a-zA-Z_]\w*\s*\]|'
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r'(?:[a-zA-Z_]\w*)?:)')
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class GeneratedObjectiveCVariant(baselexer):
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"""
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Implements Objective-C syntax on top of an existing C family lexer.
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"""
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tokens = {
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'statements': [
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(r'@"', String, 'string'),
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(r'@(YES|NO)', Number),
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(r"@'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'", String.Char),
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(r'@(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[lL]?', Number.Float),
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(r'@(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
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(r'@0x[0-9a-fA-F]+[Ll]?', Number.Hex),
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(r'@0[0-7]+[Ll]?', Number.Oct),
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(r'@\d+[Ll]?', Number.Integer),
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(r'@\(', Literal, 'literal_number'),
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(r'@\[', Literal, 'literal_array'),
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(r'@\{', Literal, 'literal_dictionary'),
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(words((
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'@selector', '@private', '@protected', '@public', '@encode',
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'@synchronized', '@try', '@throw', '@catch', '@finally',
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'@end', '@property', '@synthesize', '__bridge', '__bridge_transfer',
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'__autoreleasing', '__block', '__weak', '__strong', 'weak', 'strong',
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'copy', 'retain', 'assign', 'unsafe_unretained', 'atomic', 'nonatomic',
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'readonly', 'readwrite', 'setter', 'getter', 'typeof', 'in',
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'out', 'inout', 'release', 'class', '@dynamic', '@optional',
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'@required', '@autoreleasepool', '@import'), suffix=r'\b'),
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Keyword),
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(words(('id', 'instancetype', 'Class', 'IMP', 'SEL', 'BOOL',
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'IBOutlet', 'IBAction', 'unichar'), suffix=r'\b'),
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Keyword.Type),
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(r'@(true|false|YES|NO)\n', Name.Builtin),
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(r'(YES|NO|nil|self|super)\b', Name.Builtin),
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# Carbon types
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(r'(Boolean|UInt8|SInt8|UInt16|SInt16|UInt32|SInt32)\b', Keyword.Type),
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# Carbon built-ins
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(r'(TRUE|FALSE)\b', Name.Builtin),
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(r'(@interface|@implementation)(\s+)', bygroups(Keyword, Text),
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('#pop', 'oc_classname')),
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(r'(@class|@protocol)(\s+)', bygroups(Keyword, Text),
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('#pop', 'oc_forward_classname')),
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# @ can also prefix other expressions like @{...} or @(...)
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(r'@', Punctuation),
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inherit,
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],
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'oc_classname': [
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# interface definition that inherits
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(r'([a-zA-Z$_][\w$]*)(\s*:\s*)([a-zA-Z$_][\w$]*)?(\s*)(\{)',
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bygroups(Name.Class, Text, Name.Class, Text, Punctuation),
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('#pop', 'oc_ivars')),
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(r'([a-zA-Z$_][\w$]*)(\s*:\s*)([a-zA-Z$_][\w$]*)?',
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bygroups(Name.Class, Text, Name.Class), '#pop'),
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# interface definition for a category
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(r'([a-zA-Z$_][\w$]*)(\s*)(\([a-zA-Z$_][\w$]*\))(\s*)(\{)',
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bygroups(Name.Class, Text, Name.Label, Text, Punctuation),
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('#pop', 'oc_ivars')),
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(r'([a-zA-Z$_][\w$]*)(\s*)(\([a-zA-Z$_][\w$]*\))',
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bygroups(Name.Class, Text, Name.Label), '#pop'),
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# simple interface / implementation
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(r'([a-zA-Z$_][\w$]*)(\s*)(\{)',
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bygroups(Name.Class, Text, Punctuation), ('#pop', 'oc_ivars')),
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(r'([a-zA-Z$_][\w$]*)', Name.Class, '#pop')
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],
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'oc_forward_classname': [
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(r'([a-zA-Z$_][\w$]*)(\s*,\s*)',
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bygroups(Name.Class, Text), 'oc_forward_classname'),
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(r'([a-zA-Z$_][\w$]*)(\s*;?)',
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bygroups(Name.Class, Text), '#pop')
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],
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'oc_ivars': [
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include('whitespace'),
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include('statements'),
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(';', Punctuation),
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(r'\{', Punctuation, '#push'),
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(r'\}', Punctuation, '#pop'),
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],
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'root': [
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# methods
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(r'^([-+])(\s*)' # method marker
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r'(\(.*?\))?(\s*)' # return type
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r'([a-zA-Z$_][\w$]*:?)', # begin of method name
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bygroups(Punctuation, Text, using(this),
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Text, Name.Function),
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'method'),
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inherit,
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],
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'method': [
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include('whitespace'),
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# TODO unsure if ellipses are allowed elsewhere, see
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# discussion in Issue 789
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(r',', Punctuation),
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(r'\.\.\.', Punctuation),
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(r'(\(.*?\))(\s*)([a-zA-Z$_][\w$]*)',
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bygroups(using(this), Text, Name.Variable)),
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(r'[a-zA-Z$_][\w$]*:', Name.Function),
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(';', Punctuation, '#pop'),
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(r'\{', Punctuation, 'function'),
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default('#pop'),
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],
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'literal_number': [
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(r'\(', Punctuation, 'literal_number_inner'),
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(r'\)', Literal, '#pop'),
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include('statement'),
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],
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'literal_number_inner': [
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(r'\(', Punctuation, '#push'),
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(r'\)', Punctuation, '#pop'),
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include('statement'),
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],
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'literal_array': [
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(r'\[', Punctuation, 'literal_array_inner'),
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(r'\]', Literal, '#pop'),
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include('statement'),
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],
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'literal_array_inner': [
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(r'\[', Punctuation, '#push'),
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(r'\]', Punctuation, '#pop'),
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include('statement'),
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],
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'literal_dictionary': [
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(r'\}', Literal, '#pop'),
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include('statement'),
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],
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}
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def analyse_text(text):
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if _oc_keywords.search(text):
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return 1.0
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elif '@"' in text: # strings
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return 0.8
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elif re.search('@[0-9]+', text):
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return 0.7
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elif _oc_message.search(text):
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return 0.8
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return 0
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def get_tokens_unprocessed(self, text, stack=('root',)):
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from pygments.lexers._cocoa_builtins import COCOA_INTERFACES, \
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COCOA_PROTOCOLS, COCOA_PRIMITIVES
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for index, token, value in \
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baselexer.get_tokens_unprocessed(self, text, stack):
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if token is Name or token is Name.Class:
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if value in COCOA_INTERFACES or value in COCOA_PROTOCOLS \
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or value in COCOA_PRIMITIVES:
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token = Name.Builtin.Pseudo
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yield index, token, value
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return GeneratedObjectiveCVariant
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class ObjectiveCLexer(objective(CLexer)):
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"""
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For Objective-C source code with preprocessor directives.
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"""
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name = 'Objective-C'
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url = 'https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html'
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aliases = ['objective-c', 'objectivec', 'obj-c', 'objc']
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filenames = ['*.m', '*.h']
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mimetypes = ['text/x-objective-c']
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version_added = ''
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priority = 0.05 # Lower than C
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class ObjectiveCppLexer(objective(CppLexer)):
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"""
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For Objective-C++ source code with preprocessor directives.
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"""
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name = 'Objective-C++'
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aliases = ['objective-c++', 'objectivec++', 'obj-c++', 'objc++']
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filenames = ['*.mm', '*.hh']
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mimetypes = ['text/x-objective-c++']
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version_added = ''
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priority = 0.05 # Lower than C++
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class LogosLexer(ObjectiveCppLexer):
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"""
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For Logos + Objective-C source code with preprocessor directives.
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"""
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name = 'Logos'
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aliases = ['logos']
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filenames = ['*.x', '*.xi', '*.xm', '*.xmi']
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mimetypes = ['text/x-logos']
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version_added = '1.6'
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priority = 0.25
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tokens = {
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'statements': [
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(r'(%orig|%log)\b', Keyword),
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(r'(%c)\b(\()(\s*)([a-zA-Z$_][\w$]*)(\s*)(\))',
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bygroups(Keyword, Punctuation, Text, Name.Class, Text, Punctuation)),
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(r'(%init)\b(\()',
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bygroups(Keyword, Punctuation), 'logos_init_directive'),
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(r'(%init)(?=\s*;)', bygroups(Keyword)),
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(r'(%hook|%group)(\s+)([a-zA-Z$_][\w$]+)',
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bygroups(Keyword, Text, Name.Class), '#pop'),
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(r'(%subclass)(\s+)', bygroups(Keyword, Text),
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('#pop', 'logos_classname')),
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inherit,
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],
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'logos_init_directive': [
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(r'\s+', Text),
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(',', Punctuation, ('logos_init_directive', '#pop')),
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(r'([a-zA-Z$_][\w$]*)(\s*)(=)(\s*)([^);]*)',
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bygroups(Name.Class, Text, Punctuation, Text, Text)),
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(r'([a-zA-Z$_][\w$]*)', Name.Class),
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(r'\)', Punctuation, '#pop'),
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],
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'logos_classname': [
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(r'([a-zA-Z$_][\w$]*)(\s*:\s*)([a-zA-Z$_][\w$]*)?',
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bygroups(Name.Class, Text, Name.Class), '#pop'),
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(r'([a-zA-Z$_][\w$]*)', Name.Class, '#pop')
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],
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'root': [
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(r'(%subclass)(\s+)', bygroups(Keyword, Text),
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'logos_classname'),
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(r'(%hook|%group)(\s+)([a-zA-Z$_][\w$]+)',
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bygroups(Keyword, Text, Name.Class)),
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(r'(%config)(\s*\(\s*)(\w+)(\s*=)(.*?)(\)\s*)',
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bygroups(Keyword, Text, Name.Variable, Text, String, Text)),
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(r'(%ctor)(\s*)(\{)', bygroups(Keyword, Text, Punctuation),
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'function'),
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(r'(%new)(\s*)(\()(.*?)(\))',
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bygroups(Keyword, Text, Keyword, String, Keyword)),
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(r'(\s*)(%end)(\s*)', bygroups(Text, Keyword, Text)),
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inherit,
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],
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}
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_logos_keywords = re.compile(r'%(?:hook|ctor|init|c\()')
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def analyse_text(text):
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if LogosLexer._logos_keywords.search(text):
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return 1.0
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return 0
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class SwiftLexer(RegexLexer):
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"""
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For Swift source.
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"""
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name = 'Swift'
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url = 'https://www.swift.org/'
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filenames = ['*.swift']
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aliases = ['swift']
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mimetypes = ['text/x-swift']
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version_added = '2.0'
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tokens = {
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'root': [
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# Whitespace and Comments
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(r'\n', Text),
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(r'\s+', Whitespace),
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(r'//', Comment.Single, 'comment-single'),
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(r'/\*', Comment.Multiline, 'comment-multi'),
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(r'#(if|elseif|else|endif|available)\b', Comment.Preproc, 'preproc'),
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# Keywords
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include('keywords'),
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# Global Types
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(words((
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'Array', 'AutoreleasingUnsafeMutablePointer', 'BidirectionalReverseView',
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'Bit', 'Bool', 'CFunctionPointer', 'COpaquePointer', 'CVaListPointer',
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'Character', 'ClosedInterval', 'CollectionOfOne', 'ContiguousArray',
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'Dictionary', 'DictionaryGenerator', 'DictionaryIndex', 'Double',
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'EmptyCollection', 'EmptyGenerator', 'EnumerateGenerator',
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'EnumerateSequence', 'FilterCollectionView',
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'FilterCollectionViewIndex', 'FilterGenerator', 'FilterSequenceView',
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'Float', 'Float80', 'FloatingPointClassification', 'GeneratorOf',
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'GeneratorOfOne', 'GeneratorSequence', 'HalfOpenInterval', 'HeapBuffer',
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'HeapBufferStorage', 'ImplicitlyUnwrappedOptional', 'IndexingGenerator',
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'Int', 'Int16', 'Int32', 'Int64', 'Int8', 'LazyBidirectionalCollection',
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'LazyForwardCollection', 'LazyRandomAccessCollection',
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'LazySequence', 'MapCollectionView', 'MapSequenceGenerator',
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'MapSequenceView', 'MirrorDisposition', 'ObjectIdentifier', 'OnHeap',
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'Optional', 'PermutationGenerator', 'QuickLookObject',
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'RandomAccessReverseView', 'Range', 'RangeGenerator', 'RawByte', 'Repeat',
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'ReverseBidirectionalIndex', 'ReverseRandomAccessIndex', 'SequenceOf',
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'SinkOf', 'Slice', 'StaticString', 'StrideThrough', 'StrideThroughGenerator',
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'StrideTo', 'StrideToGenerator', 'String', 'UInt', 'UInt16', 'UInt32',
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'UInt64', 'UInt8', 'UTF16', 'UTF32', 'UTF8', 'UnicodeDecodingResult',
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'UnicodeScalar', 'Unmanaged', 'UnsafeBufferPointer',
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'UnsafeBufferPointerGenerator', 'UnsafeMutableBufferPointer',
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'UnsafeMutablePointer', 'UnsafePointer', 'Zip2', 'ZipGenerator2',
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# Protocols
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'AbsoluteValuable', 'AnyObject', 'ArrayLiteralConvertible',
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'BidirectionalIndexType', 'BitwiseOperationsType',
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'BooleanLiteralConvertible', 'BooleanType', 'CVarArgType',
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'CollectionType', 'Comparable', 'DebugPrintable',
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'DictionaryLiteralConvertible', 'Equatable',
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'ExtendedGraphemeClusterLiteralConvertible',
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'ExtensibleCollectionType', 'FloatLiteralConvertible',
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'FloatingPointType', 'ForwardIndexType', 'GeneratorType', 'Hashable',
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'IntegerArithmeticType', 'IntegerLiteralConvertible', 'IntegerType',
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'IntervalType', 'MirrorType', 'MutableCollectionType', 'MutableSliceable',
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'NilLiteralConvertible', 'OutputStreamType', 'Printable',
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'RandomAccessIndexType', 'RangeReplaceableCollectionType',
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'RawOptionSetType', 'RawRepresentable', 'Reflectable', 'SequenceType',
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'SignedIntegerType', 'SignedNumberType', 'SinkType', 'Sliceable',
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'Streamable', 'Strideable', 'StringInterpolationConvertible',
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'StringLiteralConvertible', 'UnicodeCodecType',
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'UnicodeScalarLiteralConvertible', 'UnsignedIntegerType',
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'_ArrayBufferType', '_BidirectionalIndexType', '_CocoaStringType',
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'_CollectionType', '_Comparable', '_ExtensibleCollectionType',
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'_ForwardIndexType', '_Incrementable', '_IntegerArithmeticType',
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'_IntegerType', '_ObjectiveCBridgeable', '_RandomAccessIndexType',
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'_RawOptionSetType', '_SequenceType', '_Sequence_Type',
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'_SignedIntegerType', '_SignedNumberType', '_Sliceable', '_Strideable',
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'_SwiftNSArrayRequiredOverridesType', '_SwiftNSArrayType',
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'_SwiftNSCopyingType', '_SwiftNSDictionaryRequiredOverridesType',
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'_SwiftNSDictionaryType', '_SwiftNSEnumeratorType',
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'_SwiftNSFastEnumerationType', '_SwiftNSStringRequiredOverridesType',
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'_SwiftNSStringType', '_UnsignedIntegerType',
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# Variables
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'C_ARGC', 'C_ARGV', 'Process',
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# Typealiases
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'Any', 'AnyClass', 'BooleanLiteralType', 'CBool', 'CChar', 'CChar16',
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'CChar32', 'CDouble', 'CFloat', 'CInt', 'CLong', 'CLongLong', 'CShort',
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'CSignedChar', 'CUnsignedInt', 'CUnsignedLong', 'CUnsignedShort',
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'CWideChar', 'ExtendedGraphemeClusterType', 'Float32', 'Float64',
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'FloatLiteralType', 'IntMax', 'IntegerLiteralType', 'StringLiteralType',
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'UIntMax', 'UWord', 'UnicodeScalarType', 'Void', 'Word',
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# Foundation/Cocoa
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'NSErrorPointer', 'NSObjectProtocol', 'Selector'), suffix=r'\b'),
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Name.Builtin),
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# Functions
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(words((
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'abs', 'advance', 'alignof', 'alignofValue', 'assert', 'assertionFailure',
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'contains', 'count', 'countElements', 'debugPrint', 'debugPrintln',
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'distance', 'dropFirst', 'dropLast', 'dump', 'enumerate', 'equal',
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'extend', 'fatalError', 'filter', 'find', 'first', 'getVaList', 'indices',
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'insert', 'isEmpty', 'join', 'last', 'lazy', 'lexicographicalCompare',
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'map', 'max', 'maxElement', 'min', 'minElement', 'numericCast', 'overlaps',
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'partition', 'precondition', 'preconditionFailure', 'prefix', 'print',
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'println', 'reduce', 'reflect', 'removeAll', 'removeAtIndex', 'removeLast',
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'removeRange', 'reverse', 'sizeof', 'sizeofValue', 'sort', 'sorted',
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'splice', 'split', 'startsWith', 'stride', 'strideof', 'strideofValue',
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'suffix', 'swap', 'toDebugString', 'toString', 'transcode',
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'underestimateCount', 'unsafeAddressOf', 'unsafeBitCast', 'unsafeDowncast',
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'withExtendedLifetime', 'withUnsafeMutablePointer',
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'withUnsafeMutablePointers', 'withUnsafePointer', 'withUnsafePointers',
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'withVaList'), suffix=r'\b'),
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Name.Builtin.Pseudo),
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# Implicit Block Variables
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(r'\$\d+', Name.Variable),
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# Binary Literal
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(r'0b[01_]+', Number.Bin),
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# Octal Literal
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(r'0o[0-7_]+', Number.Oct),
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# Hexadecimal Literal
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(r'0x[0-9a-fA-F_]+', Number.Hex),
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# Decimal Literal
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(r'[0-9][0-9_]*(\.[0-9_]+[eE][+\-]?[0-9_]+|'
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r'\.[0-9_]*|[eE][+\-]?[0-9_]+)', Number.Float),
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(r'[0-9][0-9_]*', Number.Integer),
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# String Literal
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(r'"""', String, 'string-multi'),
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(r'"', String, 'string'),
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# Operators and Punctuation
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(r'[(){}\[\].,:;=@#`?]|->|[<&?](?=\w)|(?<=\w)[>!?]', Punctuation),
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(r'[/=\-+!*%<>&|^?~]+', Operator),
|
|
|
|
# Identifier
|
|
(r'[a-zA-Z_]\w*', Name)
|
|
],
|
|
'keywords': [
|
|
(words((
|
|
'as', 'async', 'await', 'break', 'case', 'catch', 'continue', 'default', 'defer',
|
|
'do', 'else', 'fallthrough', 'for', 'guard', 'if', 'in', 'is',
|
|
'repeat', 'return', '#selector', 'switch', 'throw', 'try',
|
|
'where', 'while'), suffix=r'\b'),
|
|
Keyword),
|
|
(r'@availability\([^)]+\)', Keyword.Reserved),
|
|
(words((
|
|
'associativity', 'convenience', 'dynamic', 'didSet', 'final',
|
|
'get', 'indirect', 'infix', 'inout', 'lazy', 'left', 'mutating',
|
|
'none', 'nonmutating', 'optional', 'override', 'postfix',
|
|
'precedence', 'prefix', 'Protocol', 'required', 'rethrows',
|
|
'right', 'set', 'throws', 'Type', 'unowned', 'weak', 'willSet',
|
|
'@availability', '@autoclosure', '@noreturn',
|
|
'@NSApplicationMain', '@NSCopying', '@NSManaged', '@objc',
|
|
'@UIApplicationMain', '@IBAction', '@IBDesignable',
|
|
'@IBInspectable', '@IBOutlet'), suffix=r'\b'),
|
|
Keyword.Reserved),
|
|
(r'(as|dynamicType|false|is|nil|self|Self|super|true|__COLUMN__'
|
|
r'|__FILE__|__FUNCTION__|__LINE__|_'
|
|
r'|#(?:file|line|column|function))\b', Keyword.Constant),
|
|
(r'import\b', Keyword.Declaration, 'module'),
|
|
(r'(class|enum|extension|struct|protocol)(\s+)([a-zA-Z_]\w*)',
|
|
bygroups(Keyword.Declaration, Whitespace, Name.Class)),
|
|
(r'(func)(\s+)([a-zA-Z_]\w*)',
|
|
bygroups(Keyword.Declaration, Whitespace, Name.Function)),
|
|
(r'(var|let)(\s+)([a-zA-Z_]\w*)', bygroups(Keyword.Declaration,
|
|
Whitespace, Name.Variable)),
|
|
(words((
|
|
'actor', 'associatedtype', 'class', 'deinit', 'enum', 'extension', 'func', 'import',
|
|
'init', 'internal', 'let', 'operator', 'private', 'protocol', 'public',
|
|
'static', 'struct', 'subscript', 'typealias', 'var'), suffix=r'\b'),
|
|
Keyword.Declaration)
|
|
],
|
|
'comment': [
|
|
(r':param: [a-zA-Z_]\w*|:returns?:|(FIXME|MARK|TODO):',
|
|
Comment.Special)
|
|
],
|
|
|
|
# Nested
|
|
'comment-single': [
|
|
(r'\n', Whitespace, '#pop'),
|
|
include('comment'),
|
|
(r'[^\n]+', Comment.Single)
|
|
],
|
|
'comment-multi': [
|
|
include('comment'),
|
|
(r'[^*/]+', Comment.Multiline),
|
|
(r'/\*', Comment.Multiline, '#push'),
|
|
(r'\*/', Comment.Multiline, '#pop'),
|
|
(r'[*/]+', Comment.Multiline)
|
|
],
|
|
'module': [
|
|
(r'\n', Whitespace, '#pop'),
|
|
(r'[a-zA-Z_]\w*', Name.Class),
|
|
include('root')
|
|
],
|
|
'preproc': [
|
|
(r'\n', Whitespace, '#pop'),
|
|
include('keywords'),
|
|
(r'[A-Za-z]\w*', Comment.Preproc),
|
|
include('root')
|
|
],
|
|
'string': [
|
|
(r'"', String, '#pop'),
|
|
include("string-common"),
|
|
],
|
|
'string-multi': [
|
|
(r'"""', String, '#pop'),
|
|
include("string-common"),
|
|
],
|
|
'string-common': [
|
|
(r'\\\(', String.Interpol, 'string-intp'),
|
|
(r"""\\['"\\nrt]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}"""
|
|
r"""|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}""", String.Escape),
|
|
(r'[^\\"]+', String),
|
|
(r'\\', String)
|
|
],
|
|
'string-intp': [
|
|
(r'\(', String.Interpol, '#push'),
|
|
(r'\)', String.Interpol, '#pop'),
|
|
include('root')
|
|
]
|
|
}
|
|
|
|
def get_tokens_unprocessed(self, text):
|
|
from pygments.lexers._cocoa_builtins import COCOA_INTERFACES, \
|
|
COCOA_PROTOCOLS, COCOA_PRIMITIVES
|
|
|
|
for index, token, value in \
|
|
RegexLexer.get_tokens_unprocessed(self, text):
|
|
if token is Name or token is Name.Class:
|
|
if value in COCOA_INTERFACES or value in COCOA_PROTOCOLS \
|
|
or value in COCOA_PRIMITIVES:
|
|
token = Name.Builtin.Pseudo
|
|
|
|
yield index, token, value
|