Continuation lines

If your input lines get very long then editing them using vi and other such text editors becomes a massive pain in the arse.
We at PLUMED are aware of this fact and thus have provided a way of doing line continuations so as to make your life that much easier - aren't we kind? Well no not really, we have to use this code too. Anyway, you can do continuations by using the "..." syntax as this makes this:

Click on the labels of the actions for more information on what each action computes
tested on master
dist: DISTANCES 
ATOMS1
the atoms involved in each of the distances you wish to calculate.
=1,300
ATOMS2
the atoms involved in each of the distances you wish to calculate.
=1,400
ATOMS3
the atoms involved in each of the distances you wish to calculate.
=1,500

(see DISTANCES)

equivalent to this:

Click on the labels of the actions for more information on what each action computes
tested on master
dist: DISTANCES ...
   
   # we can also insert comments here 
   
ATOMS1
the atoms involved in each of the distances you wish to calculate.
=1,300 # multiple kewords per line are allowed
ATOMS2
the atoms involved in each of the distances you wish to calculate.
=1,400
ATOMS3
the atoms involved in each of the distances you wish to calculate.
=1,500 #empty lines are also allowed ...

Notice that the closing ... is followed by the word DISTANCES. This is optional, but might be useful to find more easily which is the matching start of the statement. The following is equally correct

Click on the labels of the actions for more information on what each action computes
tested on master
dist: DISTANCES ...
   # we can also insert comments here 
   
ATOMS1
the atoms involved in each of the distances you wish to calculate.
=1,300 # multiple kewords per line are allowed
ATOMS2
the atoms involved in each of the distances you wish to calculate.
=1,400
ATOMS3
the atoms involved in each of the distances you wish to calculate.
=1,500 #empty lines are also allowed ...

Notice that PLUMED makes a check that the word following the closing ... is actually identical to the first word in the line with the first .... If not, it will throw an error. Also notice that you might put more than one word in the first line. E.g.

Click on the labels of the actions for more information on what each action computes
tested on master
dist: DISTANCES ...
   # we can also insert comments here 
   
ATOMS1
the atoms involved in each of the distances you wish to calculate.
=1,300 # multiple kewords per line are allowed
ATOMS2
the atoms involved in each of the distances you wish to calculate.
=1,400
ATOMS3
the atoms involved in each of the distances you wish to calculate.
=1,500 #empty lines are also allowed ...

or, equivalently,

Click on the labels of the actions for more information on what each action computes
tested on master
dist: DISTANCES ...
   # we can also insert comments here 
   
ATOMS1
the atoms involved in each of the distances you wish to calculate.
=1,300 # multiple kewords per line are allowed
ATOMS2
the atoms involved in each of the distances you wish to calculate.
=1,400
ATOMS3
the atoms involved in each of the distances you wish to calculate.
=1,500 #empty lines are also allowed ...