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