IBM Visualization Data Explorer User's Reference

Parse

Category

Annotation

Function

Extracts values from an input string.

Syntax

value, ... = Parse(input, format);

Inputs

Name	Type	Default	Description
input	string	none	string to be operated on
format	string	"%s"	format control string

Outputs

Name	Type	Description
value	value or string	value extracted from input string
...	value or string	additional values extracted

Functional Details

This module uses a format-control string (format) to extract values from a specified input string (input).

Note: The control string resembles a C-language scanf format string.

The "%" symbol in the control string specifies that extraction is to begin at the corresponding position in the input string. The character immediately following this symbol specifies the type of value to be extracted:

c: single character

d: integer

f: floating point (with a fixed number of digits after the decimal point)

g: general (scientific notation if appropriate)

s: string.

The number of outputs is equal to the number of extractions specified in format.

Example

Given the statements:

string = "temperature = 45.8  index = 4 color = red"
format = "temperature = %f index = %d color = %s"
output1, output2, output3 = Format(string, format);

Example Visual Program

UsingParse.net

See Also

 Format

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