M
Mfer Dez
I have a text file that is structured like so:
1:1 abcdefg
1:2 abcdefg
1:3 abcdefg
1:4 abcdefg
1:5 abcdefg
I would like to be able to print out a subset of the file ie: print the
line beginning with 1:2 through the line beginning with 1:4
So far, I've started with this;
lines = File.readlines("file.txt")
This puts each line of the text file into an array, so the lines[] array
looks like this:
line[0] is 1:1 abcdefg
line[1] is 1:2 abcdefg
line[2] is 1:3 abcdefg
etc.
If I want to print out the lines that start with 1:2 through 1:4, how
should I proceed? Some of the text files won't be "aligned" in that
line[0] won't always be 1:1. If a user would like to print the lines
containing 3:9 - 3:31, how can I scan each line of the array and pattern
match the boundaries (3:9 - 3:31 in this example)? What array methods
are available to me.
Thanks in advance for any information that could point me in the right
direction.
1:1 abcdefg
1:2 abcdefg
1:3 abcdefg
1:4 abcdefg
1:5 abcdefg
I would like to be able to print out a subset of the file ie: print the
line beginning with 1:2 through the line beginning with 1:4
So far, I've started with this;
lines = File.readlines("file.txt")
This puts each line of the text file into an array, so the lines[] array
looks like this:
line[0] is 1:1 abcdefg
line[1] is 1:2 abcdefg
line[2] is 1:3 abcdefg
etc.
If I want to print out the lines that start with 1:2 through 1:4, how
should I proceed? Some of the text files won't be "aligned" in that
line[0] won't always be 1:1. If a user would like to print the lines
containing 3:9 - 3:31, how can I scan each line of the array and pattern
match the boundaries (3:9 - 3:31 in this example)? What array methods
are available to me.
Thanks in advance for any information that could point me in the right
direction.