filter chars(a,b,c)
|
Group |
Removes or replaces characters in a that are not part of a given string. The allowed characters are given as regular expression b. Every character in a is checked against the regular expression. If it not fits and c is not empty, it will be replaced by c, otherwise, it will be removed.
Description of Parameters
|
Parameter |
Description |
|
a |
Value. |
|
b |
Regular expression. |
|
c |
Replacement character. |
Examples
|
Parameter a |
Parameter b |
Parameter c |
Result |
|
80336 München |
[0-9A-Z] |
. |
80336.M...... |
|
80336 München |
[0-9A-Z] |
80336M |
|
|
80336 München |
[0-9A-z] |
80336Mnchen |
|
|
80336 München |
[^ü] |
ue |
80336 Muenchen |
Note: In order to remove all characters that do not belong to a Base64 block, this function can be used with the regular expression [A-Za-z0-9+/=] in parameter b, as well as an empty parameter c.