Function parseStringUnixExpression

parseStringUnixExpression(source: string): undefined | readonly [string, string, string, string, string]
Parses given expression or undefined if invalid.

Example
```
parseStringUnixExpression("1 1 1 1 1"); // ["1", "1", "1", "1", "1"]
parseStringUnixExpression(" 1   1    1    1   1 "); // ["1", "1", "1", "1", "1"]
parseStringUnixExpression("1 1 1 1 1 1"); // undefined
parseStringUnixExpression("1 1 1 1"); // undefined
```
Returns
An array of 5 elements or undefined if invalid.
Parameters
- source: string
  
  string to be parsed.
Returns undefined | readonly [string, string, string, string, string]
- Defined in src/parsers/parseStringUnixExpression.ts:17