extend list according to its elements

[zcabeli]

i'm looking for a way to extend a list of 2 elements that represent boundaries, to the entire range.


for example: input list = [1 ,5,10,15]
output list would be = [1, 2, 3, 4 ,5 , 10 , 11 , 12 ,13 ,14 ,15]


i can make it using the following semi-pseudo code, but perhaps there is an easier way, more elegant...

$i = 0; 
while $i != length(list) 
    for ($j = list($i); j++; j<list($i+1)) {
          push(@out_list,$j); 
      }; 
     $i += 2; 
};

[nithinpes]

i'm looking for a way to extend a list of 2 elements that represent boundaries, to the entire range.


for example: input list = [1 ,5,10,15]
output list would be = [1, 2, 3, 4 ,5 , 10 , 11 , 12 ,13 ,14 ,15]


i can make it using the following semi-pseudo code, but perhaps there is an easier way, more elegant...

$i = 0;
while $i != length(list)
for ($j = list($i); j++; j<list($i+1)) {
push(@out_list,$j);
};
$i += 2;
};

Though logic remains the same, you may reduce the number of lines of code by using this:

for($i=0;$i<@list;$i+=2) {
push @out_list,($list[$i]..$list[$i+1]);
}