sorting

[lams]

how do i sort records by user specied field in ascending order, without knowing how many columns the file has? its getting the data from a file.

[LB]

What separates each column? Can some fields be blank or contain the separator?

[SamuelAdams]

It doesn't matter how many columns a line/string has, only which column has the user field.

You will have to look at the data file and find the pattern.

[lams]

@LB the columns are separated by tabs @samuelAdams there are more than two data files and each has different number of columns and the user can choose to sort by any column.

[aliasghashaikh]

Use the Vector of Vector to store the data and pass to your sorted function, where you have to compare all the columns of inner vector for sorting

[aliasghashaikh]

I there is input of sorted column then sort on that column only

[lams]

thank you all for your help