parse_kvs

Description

Returns an object of key=value pairs extracted from an input string.

The optional kvseparator string argument allows you to specify a string of up to 256 ASCII key value separator characters other than the equals symbol, such as semicolon ‘;’, or colon ‘:’, depending on what your input data requires. Each character in the string will be treated as a separate valid kv separator. Emoji and other utf-8 separators are currently not supported. The default key value separator is the equal symbol ‘=’.

The optional delimiter string argument allows you to specify a string of up to 256 ASCII key value pair delimiter characters other than comma, such as space ‘ ‘, tab ‘\t’ or pound ‘#’, depending on what your input data requires. Each character in the string will be treated as a separate valid delimiter. Emoji and other utf-8 delimiters are currently not supported. The default delimiters are comma, space, new line and tab ‘, \n\t’.

parse_kvs is generally used with make_col to make an object column that contains each of the values that come out of the input.

Return type

object

Domain

This is a scalar function (calculates a single output value for a single input row.)

Categories

• Semistructured

• String

Usage

parse_kvs( value [ , kvseparator ] [ , delimiter ] )

Argument	Type	Required	Multiple	Constant
value	string	Required	Only one	Variable
kvseparator	string	Optional	Only one	Constant
delimiter	string	Optional	Only one	Constant

Examples

make_col keyvals:parse_kvs(log)

Make a new object column ‘keyvals’ that contains key=value pairs extracted from string column ‘log’

make_col keyvals:parse_kvs(log, "%:", "#")

Make a new object column ‘keyvals’ that contains key value pairs extracted from string column ‘log’ with the the character percent ‘%’ and the character colon ‘:’ as individual key value separators and the character pound ‘#’ as the key value delimiter.

Aliases

parsekvs (deprecated)