6.3.3 Quit Loops

The break feature of loops is implemented by using exception handling.

for 
   ... 
   break:Break
do 
   ...  {Break} ... 
end

The above loop is replaced by an statement of the following form:

try 
   for 
      ... 
   do 
      ... raise break end ... 
   end 
catch Exception then 
   case Exception of break
   then skip 
   else raise Exception end 
   end 
end