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MathGroup Archive 1998

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Re: Importing Dos Data into Linux Mathematica?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg14466] Re: Importing Dos Data into Linux Mathematica?
  • From: Rolf Mertig <rolf at mertig.com>
  • Date: Fri, 23 Oct 1998 20:58:45 -0400
  • Organization: Mertig Research & Consulting
  • References: <70k4lr$enh@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

It looks like that ^M in Mathematica is represented by \r. Thus, the
following is one possibility to get rid of ^M's completely from within
Mathematica : (use as:  DosToUnix["thedosfiletobeconverted.m"] ):


                      Options[DosToUnix]={CopyFile->False};
DosToUnix[file_String, opts___Rule]:=Block[{t},
t=ReadList[file,String];
t=Map[If[StringLength[#]===0,#,If[StringTake[#,-1]==="\r",StringDrop[#,-1],#]]&,t];
If[CopyFile/.{opts}/.Options[DosToUnix],CopyFile[file, file<>"old"]];
DeleteFile[file];
Do[WriteString[file,t[[i]],"\n"],{i,Length[t]}]; Close[file]];

Charles J. Koehler wrote:
> 
> Hello,
> 
> I am having a problem in trying to import data files that are in
> dos/ascii format.  There is generally a header of 7 rows and 6 col. of
> data. The columns are separated with commas. Each row of the data ends
> with a ^M character.
> 
> I am able to read in the first row of data but nothing more.  I assume I
> need to strip of the ^M that is attached to the last columns of data?
> 
> Does anyone have experience with this?  Your assistance would be
> appreicated.
> 
> Sincerely,
> 
> Charles J. Koehler

-- 

Dr. Rolf Mertig
Mertig Research & Consulting  
Mathematica training and programming Development and distribution of
FeynCalc  Amsterdam, The Netherlands
http://www.mertig.com


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