Does not support E notation for very small or very large numbers

[adrian-vlad]

While using this tool to get some kafka metrics into nagios we stumbled upon this error:

Block [3.487953628987248E-5] in expression [3.487953628987248E-5 * 1] invalid

It seems that this tool does not support numbers that use the E notation, like 1.2E-3, into an <expr> element.