Possibilites to have same in C# or VB.net

Question

I am having a perl script through which i achieve is split or output from text file for each single ID , the output text file will contain data of that ID and the anme of the file will be ID.txt ,

so if i am having one main file containing 100 or 200 ID's and for each ID's may be 10000 or more lines i would like to have 100 or 200 files containing data for each single ID which i am able to achieve from perl but is it possible from vb.net or c#

Answer 1

Well. You don't have any special char need in your spec.

Define a strings like:
"abcdefghijklmnopqrstuvwxyz0123456789".
"abcdefghijklmnopqrstuvwxyz"
" 0123456789"
Have a boolean flag for each.
Algo:
1) Iterate through each pwd char. Make sure the char falls in above string. When char not found, set the flag to false. When a char is lower case letter set the relevant flag to true. When a char is digit set flag related to digit as true. At the end of iteration you can check the flags to satisfy first three points.
2) For fourth point you need a inner loop that again iterates through all your chars. Here you can check the repeatable patterns.