Allow filtering of the hard coded pipe character in wp-login.php

[henry.wright]

<p id="nav">
<a href="<?php echo esc_url( wp_login_url() ); ?>"><?php _e( 'Log in' ); ?></a> |
<a href="<?php echo esc_url( wp_lostpassword_url() ); ?>"><?php _e( 'Lost your password?' ); ?></a>
</p>

The pipe character is hard coded in wp-login.php as can be seen from the snippet above.

It would be nice to have the ability to remove or modify the character.

[henry.wright]

The | pipe character actually appears 4 times inside wp-login.php. 40802.diff makes the character filterable by adding a login_divider filter.

This can be tested visually with something like:

add_filter( 'login_divider', function( $divider ) {
    $divider = ' # ';
    return $divider;
} );

[SergeyBiryukov]

Only one instance of the hook needs the full DocBlock, others should have a ​duplicate hook reference.

[henry.wright]

@SergeyBiryukov which hook would you consider to be the primary?

[henry.wright]

40802.2.diff documents the primary filter hook only. My thinking is the login form filter should serve as the primary but I can amend if needed.

[henry.wright]

40802.3.diff changes the name of the filter and filters once only.

[henry.wright]

Here's an example filter which can be used to test:

add_filter( 'login_link_separator', function() {
    return ' # ';
} );

[eddhurst]

Have tested, looks good. Thanks for function to test.

[johnbillion]

In 41291:

Login and Registration: Introduce a login_link_separator filter to allow the separator between links in the footer of the
login screen to be filtered.

Props henry.wright

Fixes #40802