SAP STRING FUNCTIONS REGEX documentation, setup help and example usage

ARTICLE

regex - Regular Expression

Syntax
... ( ... regex = regex ... ) ...

Effect
regex is used to pass a
regular expression as a search object or a match object. regex
is a character-like expression position that must contain a regular expression with correct syntax. If a character-like data object with a fixed length is specified, any t
railing blanks are ignored. If regex is empty, an exception from the class CX_SY_STRG_PAR_VAL is raised.

Note
The regular expression in regex may be have correct syntax but be too complex for the execution of the function, which can raise a handleable exception of the class
CX_SY_REGEX_TOO_COMPLEX . Refer to
Exceptions in Regular Expressions .