W3C

ASCII-Case-Insensitive Collation URI Document

21 March 2017


1 Introduction

This document describes the URI http://www.w3.org/2005/xpath-functions/collation/html-ascii-case-insensitive that identifies the ASCII-Case-Insensitive collation of the [XPath and XQuery Functions and Operators 3.1] specification (October 2014 version). This URI is not normally identified by a namespace prefix and is not associated with an XML Schema. For updated information, please refer to the latest version of the [XPath and XQuery Functions and Operators 3.1] specification.

This document contains a directory of links to related resources, using RDDL (as defined in [Resource Directory Description Language (RDDL)]).

It is GRDDL-enabled (as defined in [Gleaning Resource Descriptions from Dialects of Languages (GRDDL)]), that is to say that a GRDDL-compliant processor can extract useful RDF (as defined in [Resource Description Framework (RDF): Concepts and Abstract Syntax]) representations of the information contained herein.

2 Collations

The ASCII-Case-Insensitive collation provides the ability to compare strings for equality without distinguishing lowercase ASCII letters from their corresponding uppercase counterparts. Every implementation of XPath 2.0 and higher, and every implementation of XQuery 1.0 and higher, must support this collation. This collation is intended to provide a mechanism for comparing strings using rules that are compatible with those of HTML5. It defines equality matching of strings only; any use of this collation for sorting strings produces implementation-defined results.

3 Normative References

XPath and XQuery Functions and Operators 3.1

This document specifies the ACII-Case-Insensitive Collation. [XPath and XQuery Functions and Operators 3.1] is the only specification that is permitted to amend this namespace.

4 Non-Normative References

Resource Directory Description Language (RDDL)
Gleaning Resource Descriptions from Dialects of Languages (GRDDL)
Resource Description Framework (RDF): Concepts and Abstract Syntax