Tango.info az 09 name

needs fix - 0-9 undefined

A tango.info a z name only includes letters a-z and underscores. regex: [_a-z]

To transform a string into a a_z_name the following conversion is applied

• convert each uppercase letter to lowercase
• remove each diacritic
• convert each special character to _
• convert the sequence "__" to "_" until there is no more sequence "__"

Link

• https://tango.info/tools/string_conversion.php

See also

• tango.info azname