Decodes an integer to its bit-representation and extracts the
true bits at specified indices
with specified names to a string. The flags are listed in
ascending order, from lowest bit to highest bit. If no flags are
true, the output field will
contain an empty string.
The bits are indexed from 0 and will include up to 64 bits. If the value in the input field is larger, the lowest 64 bits will be used.
If the specified field does not exist, nothing happens. If a field with the name given for the output field already exists, it is overwritten.
| Parameter | Type | Required | Default Value | Description |
|---|---|---|---|---|
as | string | optional[a] | _flags | The name of the output field. |
field | string | required | The name of the field to be decoded. | |
flagNames | array of arrays of strings | required | A list of pairs of indices in the bit-representation and the names of the flags that these correspond to. | |
separator | string | optional[a] | (space) | The separator to use between names of true flags. |
[a] Optional parameters use their default value unless explicitly set. | ||||
Validation:
In the
flagNames
parameter, the indices have to be non-negative numbers below 64.
The indices and the names of the flags have to be unique.
bitfield:extractFlagsAsString() Examples
Click next to an example below to get the full details.
Decode and Extract true Bits as Strings - Example 1
Decode and extract true bits as strings using the bitfield:extractFlagsAsString() function
Decode and Extract true Bits as Strings - Example 2
Decode and Extract true bits as strings using the bitfield:extractFlagsAsString() function with a comma separator