Labels are character strings in the beginning of edit lines having '+'
in the control column. Labels are referred to by the {goto <label>}
statement.
+ Part2: <sucro code continued>
with '+' in the control column gives label 'Part2'.
The colon ':' and the space after it belong to the
label notation.
{goto Part2} Go to the place indicated by label 'Part2'.
In many cases, it is wise to split a large sucro into several parts.
New sucro is linked during the run by a {load <sucro>} command:
{load Cont} Continue with another sucro 'Cont'.
The contents of the tutstack and other system
parameters are preserved.
S = More information on conditional statements
C = Code words and statements in sucros