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Editing: j.py
""" pygments.lexers.j ~~~~~~~~~~~~~~~~~ Lexer for the J programming language. :copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS. :license: BSD, see LICENSE for details. """ from pygments.lexer import RegexLexer, words, include, bygroups from pygments.token import Comment, Keyword, Name, Number, Operator, \ Punctuation, String, Whitespace __all__ = ['JLexer'] class JLexer(RegexLexer): """ For J source code. .. versionadded:: 2.1 """ name = 'J' url = 'http://jsoftware.com/' aliases = ['j'] filenames = ['*.ijs'] mimetypes = ['text/x-j'] validName = r'\b[a-zA-Z]\w*' tokens = { 'root': [ # Shebang script (r'#!.*$', Comment.Preproc), # Comments (r'NB\..*', Comment.Single), (r'(\n+\s*)(Note)', bygroups(Whitespace, Comment.Multiline), 'comment'), (r'(\s*)(Note.*)', bygroups(Whitespace, Comment.Single)), # Whitespace (r'\s+', Whitespace), # Strings (r"'", String, 'singlequote'), # Definitions (r'0\s+:\s*0', Name.Entity, 'nounDefinition'), (r'(noun)(\s+)(define)(\s*)$', bygroups(Name.Entity, Whitespace, Name.Entity, Whitespace), 'nounDefinition'), (r'([1-4]|13)\s+:\s*0\b', Name.Function, 'explicitDefinition'), (r'(adverb|conjunction|dyad|monad|verb)(\s+)(define)\b', bygroups(Name.Function, Whitespace, Name.Function), 'explicitDefinition'), # Flow Control (words(('for_', 'goto_', 'label_'), suffix=validName+r'\.'), Name.Label), (words(( 'assert', 'break', 'case', 'catch', 'catchd', 'catcht', 'continue', 'do', 'else', 'elseif', 'end', 'fcase', 'for', 'if', 'return', 'select', 'throw', 'try', 'while', 'whilst', ), suffix=r'\.'), Name.Label), # Variable Names (validName, Name.Variable), # Standard Library (words(( 'ARGV', 'CR', 'CRLF', 'DEL', 'Debug', 'EAV', 'EMPTY', 'FF', 'JVERSION', 'LF', 'LF2', 'Note', 'TAB', 'alpha17', 'alpha27', 'apply', 'bind', 'boxopen', 'boxxopen', 'bx', 'clear', 'cutLF', 'cutopen', 'datatype', 'def', 'dfh', 'drop', 'each', 'echo', 'empty', 'erase', 'every', 'evtloop', 'exit', 'expand', 'fetch', 'file2url', 'fixdotdot', 'fliprgb', 'getargs', 'getenv', 'hfd', 'inv', 'inverse', 'iospath', 'isatty', 'isutf8', 'items', 'leaf', 'list', 'nameclass', 'namelist', 'names', 'nc', 'nl', 'on', 'pick', 'rows', 'script', 'scriptd', 'sign', 'sminfo', 'smoutput', 'sort', 'split', 'stderr', 'stdin', 'stdout', 'table', 'take', 'timespacex', 'timex', 'tmoutput', 'toCRLF', 'toHOST', 'toJ', 'tolower', 'toupper', 'type', 'ucp', 'ucpcount', 'usleep', 'utf8', 'uucp', )), Name.Function), # Copula (r'=[.:]', Operator), # Builtins (r'[-=+*#$%@!~`^&";:.,<>{}\[\]\\|/?]', Operator), # Short Keywords (r'[abCdDeEfHiIjLMoprtT]\.', Keyword.Reserved), (r'[aDiLpqsStux]\:', Keyword.Reserved), (r'(_[0-9])\:', Keyword.Constant), # Parens (r'\(', Punctuation, 'parentheses'), # Numbers include('numbers'), ], 'comment': [ (r'[^)]', Comment.Multiline), (r'^\)', Comment.Multiline, '#pop'), (r'[)]', Comment.Multiline), ], 'explicitDefinition': [ (r'\b[nmuvxy]\b', Name.Decorator), include('root'), (r'[^)]', Name), (r'^\)', Name.Label, '#pop'), (r'[)]', Name), ], 'numbers': [ (r'\b_{1,2}\b', Number), (r'_?\d+(\.\d+)?(\s*[ejr]\s*)_?\d+(\.?=\d+)?', Number), (r'_?\d+\.(?=\d+)', Number.Float), (r'_?\d+x', Number.Integer.Long), (r'_?\d+', Number.Integer), ], 'nounDefinition': [ (r'[^)]+', String), (r'^\)', Name.Label, '#pop'), (r'[)]', String), ], 'parentheses': [ (r'\)', Punctuation, '#pop'), # include('nounDefinition'), include('explicitDefinition'), include('root'), ], 'singlequote': [ (r"[^']+", String), (r"''", String), (r"'", String, '#pop'), ], }
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