Function

midb( text, start_num, num_bytes )

Returns a substring from the middle of the specified text.

Parameters

Keyword	Type	Description
text	Text	The text from which the substring will be extracted.
start_num	Number	The positional index in bytes of the first byte of the substring to be returned.
num_bytes	Number	The length in bytes of the substring to extract.

Returns

Text

Usage considerations

The first byte of the entire text value is considered to have an index = 1.

Examples

midb("boston",4,2) returns to

Feature compatibility

The table below lists this function's compatibility with various features in Appian.

Feature	Compatibility	Note
Portals	Compatible
Offline Mobile	Compatible
Sync-Time Custom Record Fields	Compatible	Can be used to create a custom record field that only evaluates at sync time.
Real-Time Custom Record Fields	Incompatible	Custom record fields that evaluate in real time must be configured using one or more Custom Field functions.
Process Reports	Compatible
Process Events	Compatible