301 lines
10 KiB
Python
301 lines
10 KiB
Python
"""
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pygments.lexers.esoteric
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~~~~~~~~~~~~~~~~~~~~~~~~
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Lexers for esoteric 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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from pygments.lexer import RegexLexer, include, words, bygroups
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from pygments.token import Comment, Operator, Keyword, Name, String, Number, \
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Punctuation, Error, Whitespace
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__all__ = ['BrainfuckLexer', 'BefungeLexer', 'RedcodeLexer', 'CAmkESLexer',
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'CapDLLexer', 'AheuiLexer']
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class BrainfuckLexer(RegexLexer):
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"""
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Lexer for the esoteric BrainFuck language.
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"""
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name = 'Brainfuck'
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url = 'http://www.muppetlabs.com/~breadbox/bf/'
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aliases = ['brainfuck', 'bf']
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filenames = ['*.bf', '*.b']
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mimetypes = ['application/x-brainfuck']
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version_added = ''
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tokens = {
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'common': [
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# use different colors for different instruction types
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(r'[.,]+', Name.Tag),
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(r'[+-]+', Name.Builtin),
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(r'[<>]+', Name.Variable),
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(r'[^.,+\-<>\[\]]+', Comment),
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],
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'root': [
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(r'\[', Keyword, 'loop'),
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(r'\]', Error),
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include('common'),
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],
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'loop': [
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(r'\[', Keyword, '#push'),
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(r'\]', Keyword, '#pop'),
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include('common'),
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]
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}
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def analyse_text(text):
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"""It's safe to assume that a program which mostly consists of + -
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and < > is brainfuck."""
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plus_minus_count = 0
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greater_less_count = 0
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range_to_check = max(256, len(text))
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for c in text[:range_to_check]:
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if c == '+' or c == '-':
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plus_minus_count += 1
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if c == '<' or c == '>':
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greater_less_count += 1
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if plus_minus_count > (0.25 * range_to_check):
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return 1.0
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if greater_less_count > (0.25 * range_to_check):
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return 1.0
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result = 0
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if '[-]' in text:
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result += 0.5
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return result
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class BefungeLexer(RegexLexer):
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"""
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Lexer for the esoteric Befunge language.
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"""
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name = 'Befunge'
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url = 'http://en.wikipedia.org/wiki/Befunge'
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aliases = ['befunge']
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filenames = ['*.befunge']
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mimetypes = ['application/x-befunge']
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version_added = '0.7'
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tokens = {
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'root': [
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(r'[0-9a-f]', Number),
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(r'[+*/%!`-]', Operator), # Traditional math
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(r'[<>^v?\[\]rxjk]', Name.Variable), # Move, imperatives
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(r'[:\\$.,n]', Name.Builtin), # Stack ops, imperatives
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(r'[|_mw]', Keyword),
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(r'[{}]', Name.Tag), # Befunge-98 stack ops
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(r'".*?"', String.Double), # Strings don't appear to allow escapes
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(r'\'.', String.Single), # Single character
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(r'[#;]', Comment), # Trampoline... depends on direction hit
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(r'[pg&~=@iotsy]', Keyword), # Misc
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(r'[()A-Z]', Comment), # Fingerprints
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(r'\s+', Whitespace), # Whitespace doesn't matter
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],
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}
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class CAmkESLexer(RegexLexer):
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"""
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Basic lexer for the input language for the CAmkES component platform.
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"""
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name = 'CAmkES'
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url = 'https://sel4.systems/CAmkES/'
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aliases = ['camkes', 'idl4']
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filenames = ['*.camkes', '*.idl4']
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version_added = '2.1'
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tokens = {
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'root': [
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# C pre-processor directive
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(r'^(\s*)(#.*)(\n)', bygroups(Whitespace, Comment.Preproc,
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Whitespace)),
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# Whitespace, comments
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(r'\s+', Whitespace),
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(r'/\*(.|\n)*?\*/', Comment),
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(r'//.*$', Comment),
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(r'[\[(){},.;\]]', Punctuation),
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(r'[~!%^&*+=|?:<>/-]', Operator),
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(words(('assembly', 'attribute', 'component', 'composition',
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'configuration', 'connection', 'connector', 'consumes',
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'control', 'dataport', 'Dataport', 'Dataports', 'emits',
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'event', 'Event', 'Events', 'export', 'from', 'group',
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'hardware', 'has', 'interface', 'Interface', 'maybe',
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'procedure', 'Procedure', 'Procedures', 'provides',
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'template', 'thread', 'threads', 'to', 'uses', 'with'),
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suffix=r'\b'), Keyword),
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(words(('bool', 'boolean', 'Buf', 'char', 'character', 'double',
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'float', 'in', 'inout', 'int', 'int16_6', 'int32_t',
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'int64_t', 'int8_t', 'integer', 'mutex', 'out', 'real',
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'refin', 'semaphore', 'signed', 'string', 'struct',
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'uint16_t', 'uint32_t', 'uint64_t', 'uint8_t', 'uintptr_t',
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'unsigned', 'void'),
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suffix=r'\b'), Keyword.Type),
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# Recognised attributes
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(r'[a-zA-Z_]\w*_(priority|domain|buffer)', Keyword.Reserved),
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(words(('dma_pool', 'from_access', 'to_access'), suffix=r'\b'),
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Keyword.Reserved),
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# CAmkES-level include
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(r'(import)(\s+)((?:<[^>]*>|"[^"]*");)',
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bygroups(Comment.Preproc, Whitespace, Comment.Preproc)),
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# C-level include
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(r'(include)(\s+)((?:<[^>]*>|"[^"]*");)',
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bygroups(Comment.Preproc, Whitespace, Comment.Preproc)),
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# Literals
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(r'0[xX][\da-fA-F]+', Number.Hex),
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(r'-?[\d]+', Number),
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(r'-?[\d]+\.[\d]+', Number.Float),
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(r'"[^"]*"', String),
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(r'[Tt]rue|[Ff]alse', Name.Builtin),
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# Identifiers
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(r'[a-zA-Z_]\w*', Name),
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],
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}
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class CapDLLexer(RegexLexer):
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"""
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Basic lexer for CapDL.
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The source of the primary tool that reads such specifications is available
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at https://github.com/seL4/capdl/tree/master/capDL-tool. Note that this
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lexer only supports a subset of the grammar. For example, identifiers can
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shadow type names, but these instances are currently incorrectly
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highlighted as types. Supporting this would need a stateful lexer that is
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considered unnecessarily complex for now.
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"""
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name = 'CapDL'
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url = 'https://ssrg.nicta.com.au/publications/nictaabstracts/Kuz_KLW_10.abstract.pml'
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aliases = ['capdl']
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filenames = ['*.cdl']
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version_added = '2.2'
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tokens = {
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'root': [
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# C pre-processor directive
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(r'^(\s*)(#.*)(\n)',
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bygroups(Whitespace, Comment.Preproc, Whitespace)),
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# Whitespace, comments
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(r'\s+', Whitespace),
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(r'/\*(.|\n)*?\*/', Comment),
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(r'(//|--).*$', Comment),
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(r'[<>\[(){},:;=\]]', Punctuation),
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(r'\.\.', Punctuation),
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(words(('arch', 'arm11', 'caps', 'child_of', 'ia32', 'irq', 'maps',
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'objects'), suffix=r'\b'), Keyword),
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(words(('aep', 'asid_pool', 'cnode', 'ep', 'frame', 'io_device',
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'io_ports', 'io_pt', 'notification', 'pd', 'pt', 'tcb',
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'ut', 'vcpu'), suffix=r'\b'), Keyword.Type),
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# Properties
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(words(('asid', 'addr', 'badge', 'cached', 'dom', 'domainID', 'elf',
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'fault_ep', 'G', 'guard', 'guard_size', 'init', 'ip',
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'prio', 'sp', 'R', 'RG', 'RX', 'RW', 'RWG', 'RWX', 'W',
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'WG', 'WX', 'level', 'masked', 'master_reply', 'paddr',
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'ports', 'reply', 'uncached'), suffix=r'\b'),
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Keyword.Reserved),
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# Literals
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(r'0[xX][\da-fA-F]+', Number.Hex),
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(r'\d+(\.\d+)?(k|M)?', Number),
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(words(('bits',), suffix=r'\b'), Number),
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(words(('cspace', 'vspace', 'reply_slot', 'caller_slot',
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'ipc_buffer_slot'), suffix=r'\b'), Number),
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# Identifiers
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(r'[a-zA-Z_][-@\.\w]*', Name),
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],
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}
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class RedcodeLexer(RegexLexer):
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"""
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A simple Redcode lexer based on ICWS'94.
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Contributed by Adam Blinkinsop <blinks@acm.org>.
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"""
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name = 'Redcode'
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aliases = ['redcode']
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filenames = ['*.cw']
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url = 'https://en.wikipedia.org/wiki/Core_War'
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version_added = '0.8'
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opcodes = ('DAT', 'MOV', 'ADD', 'SUB', 'MUL', 'DIV', 'MOD',
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'JMP', 'JMZ', 'JMN', 'DJN', 'CMP', 'SLT', 'SPL',
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'ORG', 'EQU', 'END')
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modifiers = ('A', 'B', 'AB', 'BA', 'F', 'X', 'I')
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tokens = {
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'root': [
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# Whitespace:
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(r'\s+', Whitespace),
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(r';.*$', Comment.Single),
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# Lexemes:
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# Identifiers
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(r'\b({})\b'.format('|'.join(opcodes)), Name.Function),
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(r'\b({})\b'.format('|'.join(modifiers)), Name.Decorator),
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(r'[A-Za-z_]\w+', Name),
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# Operators
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(r'[-+*/%]', Operator),
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(r'[#$@<>]', Operator), # mode
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(r'[.,]', Punctuation), # mode
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# Numbers
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(r'[-+]?\d+', Number.Integer),
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],
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}
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class AheuiLexer(RegexLexer):
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"""
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Aheui is esoteric language based on Korean alphabets.
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"""
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name = 'Aheui'
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url = 'http://aheui.github.io/'
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aliases = ['aheui']
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filenames = ['*.aheui']
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version_added = ''
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tokens = {
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'root': [
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('['
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'나-낳냐-냫너-넣녀-녛노-놓뇨-눟뉴-닇'
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'다-닿댜-댷더-덯뎌-뎧도-돟됴-둫듀-딓'
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'따-땋땨-떃떠-떻뗘-뗳또-똫뚀-뚷뜌-띟'
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'라-랗랴-럏러-렇려-렿로-롷료-뤃류-릫'
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'마-맣먀-먛머-멓며-몋모-뫃묘-뭏뮤-믷'
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'바-밯뱌-뱧버-벟벼-볗보-봏뵤-붛뷰-빃'
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'빠-빻뺘-뺳뻐-뻫뼈-뼣뽀-뽛뾰-뿧쀼-삏'
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'사-샇샤-샿서-섷셔-셯소-솧쇼-숳슈-싛'
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'싸-쌓쌰-썋써-쎃쎠-쎻쏘-쏳쑈-쑿쓔-씧'
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'자-잫쟈-쟣저-젛져-졓조-좋죠-줗쥬-즿'
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'차-챃챠-챻처-첳쳐-쳫초-촣쵸-춯츄-칗'
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'카-캏캬-컇커-컿켜-켷코-콯쿄-쿻큐-킣'
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'타-탛탸-턓터-텋텨-톃토-톻툐-퉇튜-틯'
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'파-팧퍄-퍟퍼-펗펴-폏포-퐇표-풓퓨-픻'
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'하-핳햐-햫허-헣혀-혛호-홓효-훟휴-힇'
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']', Operator),
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('.', Comment),
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],
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}
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