Question

I have a text file of this format:

L O A D   C A S E   1   O F   2  ...      J O I N T   D I S P L A C E M E N T S                   (global)       Joint    X-dsp       Y-dsp       Z-dsp       X-rot       Y-rot       Z-rot          1    0.0         0.0         0.0         0.0         0.0        -0.001712          2    0.000646   -0.021756    0.0         0.0         0.0        -0.001339          3    0.003562   -0.038487    0.0         0.0         0.0        -0.000727          4    0.006478   -0.041661    0.0         0.0         0.0         0.000104          5    0.009536   -0.036266    0.0         0.0         0.0         0.000720          6    0.012595   -0.022824    0.0         0.0         0.0         0.001326          7    0.014724    0.0         0.0         0.0         0.0         0.001948          8    0.010000   -0.018686    0.0         0.0         0.0        -0.001117          9    0.009354   -0.036887    0.0         0.0         0.0        -0.000829         10    0.005767   -0.041661    0.0         0.0         0.0         0.000060         11    0.002180   -0.035866    0.0         0.0         0.0         0.000798         12    0.000051   -0.020695    0.0         0.0         0.0         0.001210     M E M B E R   E N D   F O R C E S                   (local)       Member Joint      Nx          Vy         Vz         Txx        Myy        Mzz          1      1    -16.138t      0.002      0.0        0.0        0.0        0.011          1      2     16.138t     -0.002      0.0        0.0        0.0        0.017          2      2    -72.907t      0.003      0.0        0.0        0.0        0.013          2      3     72.907t     -0.003      0.0        0.0        0.0        0.023          3      3    -72.909t     -0.000      0.0        0.0        0.0       -0.009          3      4     72.909t      0.000      0.0        0.0        0.0        0.005          4      4    -76.455t     -0.000      0.0        0.0        0.0       -0.007          4      5     76.455t      0.000      0.0        0.0        0.0        0.003          5      5    -76.453t     -0.001      0.0        0.0        0.0       -0.010          5      6     76.453t      0.001      0.0        0.0        0.0        0.000          6      6    -53.226t     -0.002      0.0        0.0        0.0       -0.018          6      7     53.226t      0.002      0.0        0.0        0.0       -0.008          7      1    108.570c     -0.001      0.0        0.0        0.0       -0.011          7      8   -108.570c      0.001      0.0        0.0        0.0       -0.004          8      2    -76.765t     -0.004      0.0        0.0        0.0       -0.024          8      8     76.765t      0.004      0.0        0.0        0.0       -0.021          9      2     80.278c     -0.000      0.0        0.0        0.0       -0.006          9      9    -80.278c      0.000      0.0        0.0        0.0       -0.000         10      3    -39.997t     -0.002      0.0        0.0        0.0       -0.014         10      9     39.997t      0.002      0.0        0.0        0.0       -0.016         11      4    -23.720t     -0.000      0.0        0.0        0.0        0.004         11      9     23.720t      0.000      0.0        0.0        0.0       -0.007         12      4     -0.001t      0.000      0.0        0.0        0.0        0.002         12     10      0.001t     -0.000      0.0        0.0        0.0        0.001         13      4    -18.706t      0.000      0.0        0.0        0.0       -0.003         13     11     18.706t     -0.000      0.0        0.0        0.0        0.005         14      5    -10.000t      0.001      0.0        0.0        0.0        0.007         14     11     10.000t     -0.001      0.0        0.0        0.0        0.008         15      6     32.845c      0.000      0.0        0.0        0.0        0.006         15     11    -32.845c     -0.000      0.0        0.0        0.0       -0.000         16      6    -53.223t      0.002      0.0        0.0        0.0        0.012         16     12     53.223t     -0.002      0.0        0.0        0.0        0.010         17      7     75.273c      0.000      0.0        0.0        0.0        0.008         17     12    -75.273c     -0.000      0.0        0.0        0.0       -0.001         18      8     16.142c      0.005      0.0        0.0        0.0        0.025         18      9    -16.142c     -0.005      0.0        0.0        0.0        0.030         19      9     89.682c      0.000      0.0        0.0        0.0       -0.007         19     10    -89.682c     -0.000      0.0        0.0        0.0        0.008         20     10     89.682c     -0.000      0.0        0.0        0.0       -0.009         20     11    -89.682c      0.000      0.0        0.0        0.0        0.003         21     11     53.228c     -0.002      0.0        0.0        0.0       -0.016         21     12    -53.228c      0.002      0.0        0.0        0.0       -0.010 

Is there any C# library that can be used to parse the information of this format?

Thanks.

Answer 1

Here is a very interesting approach about importing tabulated data using Linq.

It’s simple and elegant, you only need an Enumerable method that yields the lines from the file:

public static IEnumerable<string> ReadLinesFromFile(string filename) {     using (StreamReader reader = new StreamReader(filename))     {         while (true)         {             string s = reader.ReadLine();             if (s == null)                 break;             yield return s;         }     } } 

and then you do the query:

var jointDisplacements = from line in ReadLinesFromFile(@'c:\import.txt')                let item = line.Split(new char[] { '\t' })                select new                {               Joint = Convert.ToInt32(item[0]),               X-dsp = Convert.ToDouble(item[1]),               Y-dsp = Convert.ToDouble(item[2]),               Z-dsp = Convert.ToDouble(item[3]),               X-rot = Convert.ToDouble(item[4]),               Y-rot = Convert.ToDouble(item[5]),               Z-rot = Convert.ToDouble(item[6])                }; 

You have now a list of anonymous objects that have the values from your file, represented as properties of each object.

If your file includes the column headers, you should skip the first line…