Error: 'then' expected

[tobiasvl]

Does picolove not support the one-liner if?

Error: Error loading lua: patrick.p8:75: 'then' expected near 'menu_selection'
stack traceback:
        [string "boot.lua"]:637: in function <[string "boot.lua"]:633>
        [C]: in function 'error'
        cart.lua:429: in function 'load_p8'
        main.lua:140: in function '_load'
        main.lua:348: in function 'load'
        main.lua:719: in function <main.lua:711>
        [C]: in function 'xpcall'
        [string "boot.lua"]:650: in function <[string "boot.lua"]:639>
        [C]: in function 'xpcall'

Here's line 75:

    if (button==4) menu_selection=menu_selection==1 and #menu or menu_selection-1

I tried to replace it with a full if/end block but that just made it complain on another similar line.

The cart in question is here on GitHub, but I have the same problem with all my carts since I use the same boilerplate menu system.

[tobiasvl]

OK, sorry, it's obviously supported, just not fully.

It supports multiple statements and an else branch, but apparently it doesn't support the same kinds of statements in its body as PICO-8. In this case, it seems that it fails to parse a one-line if body that has a ternary boolean statement. All others seem to work fine.

[tobiasvl]

Other examples that don't work:

From the same cart as in the original comment:

if (destroyed==0 and mode==modes.play) local s=buttons.x..": skip" print(s,128-((keyboard and 7 or 8)*4),0,7)

if (patrick.x>0) local s=buttons.o..": play" print(s,128-((keyboard and 7 or 8)*4),0,7)                                                                                                                    

From this cart:

if (edit) level.start_pos={x=xpos/8,y=ypos/8}

if (lvl>9) x-=2