By quietone on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
9.2.x
Introduced in version: 
9.2.0
Issue links: 
https://www.drupal.org/node/3157004
Description: 

The regular expression used in the MachineName migrate process plugin is now configurable, using the 'replace_pattern' property.

Before
The field was not configurable and the regular expression used to replace characters was, /[^a-z0-9_]+/

process:
  foo:
    plugin: machine_name
    source: foo

If the value of foo was 'the.bar' for would be set to 'the_bar'.

After

process:
  foo:
    plugin: machine_name
    source: foo
    replace_pattern: '/[^a-z0-9_.]+/'

In this example the replace pattern is changed to allow a '.' character. If the value of foo was 'the.bar' foo would be set to 'the.bar'.

Impacts: 
Module developers