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"""
pygments.lexers.rdf
~~~~~~~~~~~~~~~~~~~
Lexers for semantic web and RDF query languages and markup.
:copyright: Copyright 2006-2022 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'),
],
}