Expand A Numerical Input Range to All Values

 This string function will take an input of numbers in the form S-F and expand it to all values. The separator is by default a comma, however the optional sep=STRING will make the separator be STRING.

The function illustrates both the use of an optional input and grep pattern matching in SplitString.

Example



ExpandString("9-12",sep="..") will return 9..10..11..12..

Function/S ExpandString(theStr, [sep])
    string theStr, sep
    
    string xs, xe
    variable ns, ne, ic
 
    if(ParamIsDefault(sep))
        sep = ","
    endif
    
    SplitString/E="(.+)-(.+)" theStr, xs,xe
    
    if (strlen(xs)==0)
        return (theStr + sep)
    endif
    ns = str2num(xs)
    ne = str2num(xe)
    
    theStr = ""
    for(ic=ns;ic<(ne+1);ic+=1)
        theStr += num2str(ic) + sep
    endfor
    return theStr
end

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