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Re: Reading formatted input with READS [message #93598 is a reply to message #93596]

Thu, 01 September 2016 01:55

Markus Schmassmann
Messages: 129
Registered: April 2016

Senior Member

On 09/01/2016 05:27 AM, Stefano Garcia wrote:
> This is my first post so please let me know if I posted it in the
> wrong place.
>
> My problem is purely that I am not yet familiarized with the IDL
> formats. I would like to use READS to read what is in between the
> square brackets below:
>
> %M.z 20.37 [~] D 2011A&A...527A..78F
> %M.z 20.37 [0.12] D 2011A&A...527A..78F
>
> So, there is two cases, one when it is a STRING and the other, when
> it is a FLOAT.
>
> Is there a way to read that?
Hallo Stefano, welcome

one way to read the string is the following:

str=strMid(string,strPos(string,'[')+1,strPos(string,']')-st rPos(string,'[')-1)
fltRegEx='^[-+]?(([0-9]*\.?[0-9]+([ed][-+]?[0-9]+)?)|(inf)|( nan))$'
isFloat=stRegEx(str,fltRegEx,/boolean,/fold_case)
if isFloat then out=float(str) else out=str

if you want to do it with READS, you should first figure out which terms
in your table have a fixed with, this will simplify considerably coming
up with a correct format code. For details on these, see:

http://www.harrisgeospatial.com/docs/format_codes.html

Markus

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[Message index]

		Reading formatted input with READS By: Stefano Garcia on Wed, 31 August 2016 20:27
		Re: Reading formatted input with READS By: Helder Marchetto on Thu, 01 September 2016 01:50
		Re: Reading formatted input with READS By: Markus Schmassmann on Thu, 01 September 2016 01:55
		Re: Reading formatted input with READS By: Markus Schmassmann on Thu, 01 September 2016 07:15
		Re: Reading formatted input with READS By: Stefano Garcia on Thu, 01 September 2016 14:12

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