OPL - Programming language

OPL, aka Open Programming Language, is a programming language created in 1984.

#789on PLDB

40Years Old

Open Programming Language (OPL) is an embedded programming language for portable devices that run the Symbian Operating System.. Read more on Wikipedia...

OPL website
OPL Wikipedia page
OPL first developed in Psion PLC
Explore OPL snippets on Rosetta Code
OPL appears in the TIOBE Index
See also: (4 related languages)BASIC, Visual Basic, Python, Python for S60

Example from Wikipedia:

PROC test:
  dINIT "Your Challenge"
  dTEXT "","Will your answer to this question be no?"
  dBUTTONS "Yes",%y,"No",%n
  IF DIALOG=%y
     PRINT "No it wasn't!"
  ELSE
     PRINT "Yes it was!"
  ENDIF
  GET
ENDP