Rule 6.3.4

Summary

This test consists in checking whether the text of each combined link is enough explicit to understand the purpose and the target out of its context.

Business description

Level

AAA

Technical description

Scope

page

Decision level

Semi-Decidable

Algorithm

Selection

Set1

All the <a> tags with a "href" attribute, with children (a[href]:has(*) )

Set2

All the elements of Set1 with own text or with more than 1 child or with only one child not of type <img>, <canvas>, <svg> or <object> (where "img , object[type^=image], object[data^=data:image], object[data$=png], object[data$=jpeg], object[data$=jpg],object[data$=bmp], object[data$=gif], canvas, svg" returns empty)

Set3

All the elements of Set2 with a not empty text.

Process

Test1

For each element of Set3, we check whether the link content doesn't belong to the text link blacklist.

For each element returning false in Test1, raise a MessageA, raise a MessageB instead.

Test2

For each element of Set3, we check whether the link content doesn't only contain non alphanumeric characters.

For each element returning false in Test2, raise a MessageA, raise a MessageB instead.

MessageA : Unexplicit Link

code : UnexplicitLink
status: Failed
parameter : link text, "title" attribute, snippet
present in source : yes

MessageB : Check link without context pertinence

code : CheckLinkWithoutContextPertinence
status: Need More Info
parameter : link text, "title" attribute, snippet
present in source : yes

Analysis

Not Applicable

The page has no combined link (Set1 is empty)

Failed

At least one combined link has a text content which is blacklisted or that only contains non alphanumerical characters (Test1 OR Test2 returns false for at least one element)

Pre-Qualified

In all other cases

Notes

All the links that have children different from <img>, <canvas>, <svg> or <object>, are considered as combined links.