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Code Editor : rdf.py
""" pygments.lexers.rdf ~~~~~~~~~~~~~~~~~~~ Lexers for semantic web and RDF query languages and markup. :copyright: Copyright 2006-2021 by the Pygments team, see AUTHORS. :license: BSD, see LICENSE for details. """ import re from pygments.lexer import RegexLexer, bygroups, default from pygments.token import Keyword, Punctuation, String, Number, Operator, Generic, \ Whitespace, Name, Literal, Comment, Text __all__ = ['SparqlLexer', 'TurtleLexer', 'ShExCLexer'] class SparqlLexer(RegexLexer): """ Lexer for `SPARQL <https://www.w3.org/TR/sparql11-query/>`_ query language. .. versionadded:: 2.0 """ name = 'SPARQL' aliases = ['sparql'] filenames = ['*.rq', '*.sparql'] mimetypes = ['application/sparql-query'] # character group definitions :: PN_CHARS_BASE_GRP = ('a-zA-Z' '\u00c0-\u00d6' '\u00d8-\u00f6' '\u00f8-\u02ff' '\u0370-\u037d' '\u037f-\u1fff' '\u200c-\u200d' '\u2070-\u218f' '\u2c00-\u2fef' '\u3001-\ud7ff' '\uf900-\ufdcf' '\ufdf0-\ufffd') PN_CHARS_U_GRP = (PN_CHARS_BASE_GRP + '_') PN_CHARS_GRP = (PN_CHARS_U_GRP + r'\-' + r'0-9' + '\u00b7' + '\u0300-\u036f' + '\u203f-\u2040') HEX_GRP = '0-9A-Fa-f' PN_LOCAL_ESC_CHARS_GRP = r' _~.\-!$&"()*+,;=/?#@%' # terminal productions :: PN_CHARS_BASE = '[' + PN_CHARS_BASE_GRP + ']' PN_CHARS_U = '[' + PN_CHARS_U_GRP + ']' PN_CHARS = '[' + PN_CHARS_GRP + ']' HEX = '[' + HEX_GRP + ']' PN_LOCAL_ESC_CHARS = '[' + PN_LOCAL_ESC_CHARS_GRP + ']' IRIREF = r'<(?:[^<>"{}|^`\\\x00-\x20])*>' BLANK_NODE_LABEL = '_:[0-9' + PN_CHARS_U_GRP + '](?:[' + PN_CHARS_GRP + \ '.]*' + PN_CHARS + ')?' PN_PREFIX = PN_CHARS_BASE + '(?:[' + PN_CHARS_GRP + '.]*' + PN_CHARS + ')?' VARNAME = '[0-9' + PN_CHARS_U_GRP + '][' + PN_CHARS_U_GRP + \ '0-9\u00b7\u0300-\u036f\u203f-\u2040]*' PERCENT = '%' + HEX + HEX PN_LOCAL_ESC = r'\\' + PN_LOCAL_ESC_CHARS PLX = '(?:' + PERCENT + ')|(?:' + PN_LOCAL_ESC + ')' PN_LOCAL = ('(?:[' + PN_CHARS_U_GRP + ':0-9' + ']|' + PLX + ')' + '(?:(?:[' + PN_CHARS_GRP + '.:]|' + PLX + ')*(?:[' + PN_CHARS_GRP + ':]|' + PLX + '))?') EXPONENT = r'[eE][+-]?\d+' # Lexer token definitions :: tokens = { 'root': [ (r'\s+', Text), # keywords :: (r'(?i)(select|construct|describe|ask|where|filter|group\s+by|minus|' r'distinct|reduced|from\s+named|from|order\s+by|desc|asc|limit|' r'offset|values|bindings|load|into|clear|drop|create|add|move|copy|' r'insert\s+data|delete\s+data|delete\s+where|with|delete|insert|' r'using\s+named|using|graph|default|named|all|optional|service|' r'silent|bind|undef|union|not\s+in|in|as|having|to|prefix|base)\b', Keyword), (r'(a)\b', Keyword), # IRIs :: ('(' + IRIREF + ')', Name.Label), # blank nodes :: ('(' + BLANK_NODE_LABEL + ')', Name.Label), # # variables :: ('[?$]' + VARNAME, Name.Variable), # prefixed names :: (r'(' + PN_PREFIX + r')?(\:)(' + PN_LOCAL + r')?', bygroups(Name.Namespace, Punctuation, Name.Tag)), # function names :: (r'(?i)(str|lang|langmatches|datatype|bound|iri|uri|bnode|rand|abs|' r'ceil|floor|round|concat|strlen|ucase|lcase|encode_for_uri|' r'contains|strstarts|strends|strbefore|strafter|year|month|day|' r'hours|minutes|seconds|timezone|tz|now|uuid|struuid|md5|sha1|sha256|sha384|' r'sha512|coalesce|if|strlang|strdt|sameterm|isiri|isuri|isblank|' r'isliteral|isnumeric|regex|substr|replace|exists|not\s+exists|' r'count|sum|min|max|avg|sample|group_concat|separator)\b', Name.Function), # boolean literals :: (r'(true|false)', Keyword.Constant), # double literals :: (r'[+\-]?(\d+\.\d*' + EXPONENT + r'|\.?\d+' + EXPONENT + ')', Number.Float), # decimal literals :: (r'[+\-]?(\d+\.\d*|\.\d+)', Number.Float), # integer literals :: (r'[+\-]?\d+', Number.Integer), # operators :: (r'(\|\||&&|=|\*|\-|\+|/|!=|<=|>=|!|<|>)', Operator), # punctuation characters :: (r'[(){}.;,:^\[\]]', Punctuation), # line comments :: (r'#[^\n]*', Comment), # strings :: (r'"""', String, 'triple-double-quoted-string'), (r'"', String, 'single-double-quoted-string'), (r"'''", String, 'triple-single-quoted-string'), (r"'", String, 'single-single-quoted-string'), ], 'triple-double-quoted-string': [ (r'"""', String, 'end-of-string'), (r'[^\\]+', String), (r'\\', String, 'string-escape'), ], 'single-double-quoted-string': [ (r'"', String, 'end-of-string'), (r'[^"\\\n]+', String), (r'\\', String, 'string-escape'), ], 'triple-single-quoted-string': [ (r"'''", String, 'end-of-string'), (r'[^\\]+', String), (r'\\', String.Escape, 'string-escape'), ], 'single-single-quoted-string': [ (r"'", String, 'end-of-string'), (r"[^'\\\n]+", String), (r'\\', String, 'string-escape'), ], 'string-escape': [ (r'u' + HEX + '{4}', String.Escape, '#pop'), (r'U' + HEX + '{8}', String.Escape, '#pop'), (r'.', String.Escape, '#pop'), ], 'end-of-string': [ (r'(@)([a-zA-Z]+(?:-[a-zA-Z0-9]+)*)', bygroups(Operator, Name.Function), '#pop:2'), (r'\^\^', Operator, '#pop:2'), default('#pop:2'), ], } class TurtleLexer(RegexLexer): """ Lexer for `Turtle <http://www.w3.org/TR/turtle/>`_ data language. .. versionadded:: 2.1 """ name = 'Turtle' aliases = ['turtle'] filenames = ['*.ttl'] mimetypes = ['text/turtle', 'application/x-turtle'] # character group definitions :: PN_CHARS_BASE_GRP = ('a-zA-Z' '\u00c0-\u00d6' '\u00d8-\u00f6' '\u00f8-\u02ff' '\u0370-\u037d' '\u037f-\u1fff' '\u200c-\u200d' '\u2070-\u218f' '\u2c00-\u2fef' '\u3001-\ud7ff' '\uf900-\ufdcf' '\ufdf0-\ufffd') PN_CHARS_U_GRP = (PN_CHARS_BASE_GRP + '_') PN_CHARS_GRP = (PN_CHARS_U_GRP + r'\-' + r'0-9' + '\u00b7' + '\u0300-\u036f' + '\u203f-\u2040') PN_CHARS = '[' + PN_CHARS_GRP + ']' PN_CHARS_BASE = '[' + PN_CHARS_BASE_GRP + ']' PN_PREFIX = PN_CHARS_BASE + '(?:[' + PN_CHARS_GRP + '.]*' + PN_CHARS + ')?' HEX_GRP = '0-9A-Fa-f' HEX = '[' + HEX_GRP + ']' PERCENT = '%' + HEX + HEX PN_LOCAL_ESC_CHARS_GRP = r' _~.\-!$&"()*+,;=/?#@%' PN_LOCAL_ESC_CHARS = '[' + PN_LOCAL_ESC_CHARS_GRP + ']' PN_LOCAL_ESC = r'\\' + PN_LOCAL_ESC_CHARS PLX = '(?:' + PERCENT + ')|(?:' + PN_LOCAL_ESC + ')' PN_LOCAL = ('(?:[' + PN_CHARS_U_GRP + ':0-9' + ']|' + PLX + ')' + '(?:(?:[' + PN_CHARS_GRP + '.:]|' + PLX + ')*(?:[' + PN_CHARS_GRP + ':]|' + PLX + '))?') patterns = { 'PNAME_NS': r'((?:[a-zA-Z][\w-]*)?\:)', # Simplified character range 'IRIREF': r'(<[^<>"{}|^`\\\x00-\x20]*>)' } tokens = { 'root': [ (r'\s+', Text), # Base / prefix (r'(@base|BASE)(\s+)%(IRIREF)s(\s*)(\.?)' % patterns, bygroups(Keyword, Whitespace, Name.Variable, Whitespace, Punctuation)), (r'(@prefix|PREFIX)(\s+)%(PNAME_NS)s(\s+)%(IRIREF)s(\s*)(\.?)' % patterns, bygroups(Keyword, Whitespace, Name.Namespace, Whitespace, Name.Variable, Whitespace, Punctuation)), # The shorthand predicate 'a' (r'(?<=\s)a(?=\s)', Keyword.Type), # IRIREF (r'%(IRIREF)s' % patterns, Name.Variable), # PrefixedName (r'(' + PN_PREFIX + r')?(\:)(' + PN_LOCAL + r')?', bygroups(Name.Namespace, Punctuation, Name.Tag)), # Comment (r'#[^\n]+', Comment), (r'\b(true|false)\b', Literal), (r'[+\-]?\d*\.\d+', Number.Float), (r'[+\-]?\d*(:?\.\d+)?E[+\-]?\d+', Number.Float), (r'[+\-]?\d+', Number.Integer), (r'[\[\](){}.;,:^]', Punctuation), (r'"""', String, 'triple-double-quoted-string'), (r'"', String, 'single-double-quoted-string'), (r"'''", String, 'triple-single-quoted-string'), (r"'", String, 'single-single-quoted-string'), ], 'triple-double-quoted-string': [ (r'"""', String, 'end-of-string'), (r'[^\\]+', String), (r'\\', String, 'string-escape'), ], 'single-double-quoted-string': [ (r'"', String, 'end-of-string'), (r'[^"\\\n]+', String), (r'\\', String, 'string-escape'), ], 'triple-single-quoted-string': [ (r"'''", String, 'end-of-string'), (r'[^\\]+', String), (r'\\', String, 'string-escape'), ], 'single-single-quoted-string': [ (r"'", String, 'end-of-string'), (r"[^'\\\n]+", String), (r'\\', String, 'string-escape'), ], 'string-escape': [ (r'.', String, '#pop'), ], 'end-of-string': [ (r'(@)([a-zA-Z]+(?:-[a-zA-Z0-9]+)*)', bygroups(Operator, Generic.Emph), '#pop:2'), (r'(\^\^)%(IRIREF)s' % patterns, bygroups(Operator, Generic.Emph), '#pop:2'), default('#pop:2'), ], } # Turtle and Tera Term macro files share the same file extension # but each has a recognizable and distinct syntax. def analyse_text(text): for t in ('@base ', 'BASE ', '@prefix ', 'PREFIX '): if re.search(r'^\s*%s' % t, text): return 0.80 class ShExCLexer(RegexLexer): """ Lexer for `ShExC <https://shex.io/shex-semantics/#shexc>`_ shape expressions language syntax. """ name = 'ShExC' aliases = ['shexc', 'shex'] filenames = ['*.shex'] mimetypes = ['text/shex'] # character group definitions :: PN_CHARS_BASE_GRP = ('a-zA-Z' '\u00c0-\u00d6' '\u00d8-\u00f6' '\u00f8-\u02ff' '\u0370-\u037d' '\u037f-\u1fff' '\u200c-\u200d' '\u2070-\u218f' '\u2c00-\u2fef' '\u3001-\ud7ff' '\uf900-\ufdcf' '\ufdf0-\ufffd') PN_CHARS_U_GRP = (PN_CHARS_BASE_GRP + '_') PN_CHARS_GRP = (PN_CHARS_U_GRP + r'\-' + r'0-9' + '\u00b7' + '\u0300-\u036f' + '\u203f-\u2040') HEX_GRP = '0-9A-Fa-f' PN_LOCAL_ESC_CHARS_GRP = r"_~.\-!$&'()*+,;=/?#@%" # terminal productions :: PN_CHARS_BASE = '[' + PN_CHARS_BASE_GRP + ']' PN_CHARS_U = '[' + PN_CHARS_U_GRP + ']' PN_CHARS = '[' + PN_CHARS_GRP + ']' HEX = '[' + HEX_GRP + ']' PN_LOCAL_ESC_CHARS = '[' + PN_LOCAL_ESC_CHARS_GRP + ']' UCHAR_NO_BACKSLASH = '(?:u' + HEX + '{4}|U' + HEX + '{8})' UCHAR = r'\\' + UCHAR_NO_BACKSLASH IRIREF = r'<(?:[^\x00-\x20<>"{}|^`\\]|' + UCHAR + ')*>' BLANK_NODE_LABEL = '_:[0-9' + PN_CHARS_U_GRP + '](?:[' + PN_CHARS_GRP + \ '.]*' + PN_CHARS + ')?' PN_PREFIX = PN_CHARS_BASE + '(?:[' + PN_CHARS_GRP + '.]*' + PN_CHARS + ')?' PERCENT = '%' + HEX + HEX PN_LOCAL_ESC = r'\\' + PN_LOCAL_ESC_CHARS PLX = '(?:' + PERCENT + ')|(?:' + PN_LOCAL_ESC + ')' PN_LOCAL = ('(?:[' + PN_CHARS_U_GRP + ':0-9' + ']|' + PLX + ')' + '(?:(?:[' + PN_CHARS_GRP + '.:]|' + PLX + ')*(?:[' + PN_CHARS_GRP + ':]|' + PLX + '))?') EXPONENT = r'[eE][+-]?\d+' # Lexer token definitions :: tokens = { 'root': [ (r'\s+', Text), # keywords :: (r'(?i)(base|prefix|start|external|' r'literal|iri|bnode|nonliteral|length|minlength|maxlength|' r'mininclusive|minexclusive|maxinclusive|maxexclusive|' r'totaldigits|fractiondigits|' r'closed|extra)\b', Keyword), (r'(a)\b', Keyword), # IRIs :: ('(' + IRIREF + ')', Name.Label), # blank nodes :: ('(' + BLANK_NODE_LABEL + ')', Name.Label), # prefixed names :: (r'(' + PN_PREFIX + r')?(\:)(' + PN_LOCAL + ')?', bygroups(Name.Namespace, Punctuation, Name.Tag)), # boolean literals :: (r'(true|false)', Keyword.Constant), # double literals :: (r'[+\-]?(\d+\.\d*' + EXPONENT + r'|\.?\d+' + EXPONENT + ')', Number.Float), # decimal literals :: (r'[+\-]?(\d+\.\d*|\.\d+)', Number.Float), # integer literals :: (r'[+\-]?\d+', Number.Integer), # operators :: (r'[@|$&=*+?^\-~]', Operator), # operator keywords :: (r'(?i)(and|or|not)\b', Operator.Word), # punctuation characters :: (r'[(){}.;,:^\[\]]', Punctuation), # line comments :: (r'#[^\n]*', Comment), # strings :: (r'"""', String, 'triple-double-quoted-string'), (r'"', String, 'single-double-quoted-string'), (r"'''", String, 'triple-single-quoted-string'), (r"'", String, 'single-single-quoted-string'), ], 'triple-double-quoted-string': [ (r'"""', String, 'end-of-string'), (r'[^\\]+', String), (r'\\', String, 'string-escape'), ], 'single-double-quoted-string': [ (r'"', String, 'end-of-string'), (r'[^"\\\n]+', String), (r'\\', String, 'string-escape'), ], 'triple-single-quoted-string': [ (r"'''", String, 'end-of-string'), (r'[^\\]+', String), (r'\\', String.Escape, 'string-escape'), ], 'single-single-quoted-string': [ (r"'", String, 'end-of-string'), (r"[^'\\\n]+", String), (r'\\', String, 'string-escape'), ], 'string-escape': [ (UCHAR_NO_BACKSLASH, String.Escape, '#pop'), (r'.', String.Escape, '#pop'), ], 'end-of-string': [ (r'(@)([a-zA-Z]+(?:-[a-zA-Z0-9]+)*)', bygroups(Operator, Name.Function), '#pop:2'), (r'\^\^', Operator, '#pop:2'), default('#pop:2'), ], }
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