100 lines
3.7 KiB
Python
100 lines
3.7 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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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 2006-2014 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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Whitespace, Name, Literal, Comment, Text
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__all__ = ['SparqlLexer']
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class SparqlLexer(RegexLexer):
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"""
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Lexer for `SPARQL <http://www.w3.org/TR/rdf-sparql-query/>`_ query language.
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.. versionadded:: 2.0
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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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flags = re.IGNORECASE
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tokens = {
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'root': [
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(r'\s+', Whitespace),
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(r'(select|construct|describe|ask|where|filter|group\s+by|minus|'
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r'distinct|reduced|from named|from|order\s+by|limit|'
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r'offset|bindings|load|clear|drop|create|add|move|copy|'
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r'insert\s+data|delete\s+data|delete\s+where|delete|insert|'
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r'using named|using|graph|default|named|all|optional|service|'
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r'silent|bind|union|not in|in|as|a)', Keyword),
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(r'(prefix|base)(\s+)([a-z][\w-]*)(\s*)(\:)',
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bygroups(Keyword, Whitespace, Name.Namespace, Whitespace,
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Punctuation)),
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(r'\?[a-z_]\w*', Name.Variable),
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(r'<[^>]+>', Name.Label),
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(r'([a-z][\w-]*)(\:)([a-z][\w-]*)',
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bygroups(Name.Namespace, Punctuation, Name.Tag)),
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(r'(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|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 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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(r'(true|false)', 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'(\|\||&&|=|\*|\-|\+|/)', Operator),
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(r'[(){}.;,:^]', Punctuation),
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(r'#[^\n]+', Comment),
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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-z]+(:?-[a-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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