Created a plugin for our code tags

[snippsat]

There problems that metulburr mention need to be fixed.

Here are problem as a reference. 
There are also problem with preview(look like a mess) to what you get.
And there are some new line problem outside of code boxes.
It messing up quite a lot stranac
Please revert and test better.

The original code,should not be active.

test

The old php code box should not be active.

Should not be here

Error tag is wrong:

Error:
123
456
789

Output tag is wrong:

Output:
aaaaaa
bbbbbbbbbbbbbbbbb
ccccccccc

Python tag ok:

import time

def time_code():
    start = time.clock()
    time.sleep(5)
    end = time.clock()
    print 'Code time {:.2f} seconds'.format(end - start)

time_code()

Spoiler tag ok:

Hide/Show

test
123

Inline code tag do not work,but do not work in preview.:
12345678