BotEngine, 29x7=203

v ABCDEFGHIJKLMNOPQRSTUVWXYZ
>ISSSSSSSSSSSSSSSSSSSSSSSSSSF
 v<<<<<<<<<<<<<<<<<<<<<<<<<<
  abcdefghijklmnopqrstuvwxyz
>>SSSSSSSSSSSSSSSSSSSSSSSSSSF
 T
^E<<<<<<<<<<<<<<<<<<<<<<<<<<

I should really add builtins for identifying uppercase and lowercase letters. That would be much more concise than checking each letter individually.

Rough translation:

for a of input enqueue a
if ABCDEFGHIJKLMNOPQRSTUVWXYZ contains first
 remove first
 while abcdefghijklmnopqrstuvwxyz contains first
  remove first
 if empty
  yield TRUE exit
 else
  yield FALSE exit
else
 yield FALSE exit

BotEngine, 203 180 29x6=174

v ABCDEFGHIJKLMNOPQRSTUVWXYZ
>ISSSSSSSSSSSSSSSSSSSSSSSSSSF
v <<<<<<<<<<<<<<<<<<<<<<<<<<
 Tabcdefghijklmnopqrstuvwxyz
> SSSSSSSSSSSSSSSSSSSSSSSSSSF
^E<<<<<<<<<<<<<<<<<<<<<<<<<<

I should really add builtins for identifying uppercase and lowercase letters. That would be much more concise than checking each letter individually.

Rough translation:

for a of input enqueue a
if ABCDEFGHIJKLMNOPQRSTUVWXYZ contains first
 remove first
 while abcdefghijklmnopqrstuvwxyz contains first
  remove first
 if empty
  yield TRUE exit
 else
  yield FALSE exit
else
 yield FALSE exit

BotEngine, 29x7=203

v ABCDEFGHIJKLMNOPQRSTUVWXYZ
>ISSSSSSSSSSSSSSSSSSSSSSSSSSF
 v<<<<<<<<<<<<<<<<<<<<<<<<<<
  abcdefghijklmnopqrstuvwxyz
>>SSSSSSSSSSSSSSSSSSSSSSSSSSF
 T
^E<<<<<<<<<<<<<<<<<<<<<<<<<<

I should really add builtins for identifying uppercase and lowercase letters. That would be much more concise than checking each letter individually.

BotEngine, 29x7=203

v ABCDEFGHIJKLMNOPQRSTUVWXYZ
>ISSSSSSSSSSSSSSSSSSSSSSSSSSF
 v<<<<<<<<<<<<<<<<<<<<<<<<<<
  abcdefghijklmnopqrstuvwxyz
>>SSSSSSSSSSSSSSSSSSSSSSSSSSF
 T
^E<<<<<<<<<<<<<<<<<<<<<<<<<<

I should really add builtins for identifying uppercase and lowercase letters. That would be much more concise than checking each letter individually.

Rough translation:

for a of input enqueue a
if ABCDEFGHIJKLMNOPQRSTUVWXYZ contains first
 remove first
 while abcdefghijklmnopqrstuvwxyz contains first
  remove first
 if empty
  yield TRUE exit
 else
  yield FALSE exit
else
 yield FALSE exit