SC3-1-2-lang

This test belongs to 3.1.2 Language of Parts.

Status

Previous versions

Description

This test checks that lang attributes within the body of a web page are correct.

Background

• H58: Using language attributes to identify changes in the human language
• eGovMon test for SC3.1.2
• BCP 47: Tags for the Identification of Languages

Assumptions

• The comparison of language-code does not look for exact matches. Technique H57 states: "Use of the primary code is important for this technique." which means that region subtags can be ignored in the comparison, i.e. "en-GB" is the same as "en".
• This test checks the lang attributes. The xml:lang attributes are not taken into account because tests have shown, that xml:lang is ignored by screenreaders. (Both Jaws 15 with FF and IE and NVDA with FF go by lang attribute, xml:lang is ignored.) The xml:lang attributes are checked by a separate test: SC3-1-2-xml-lang.

Test properties

Test procedure

Selector

descendent-or-self::body[@lang]

This test is applied to all elements with lang attribute in the body of the web page (including the body element itself).

Step 1

L1 = value of lang attribute.

Compare L1 to BCP 47.

If L1 is not on the list, return

Note that this step also fails if L1 contains only whitespace or is empty.

Else, return