Simple variable substition ##simple_var##
Simple boolean conditional
##@simple_cond_var##
Yes
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##!simple_cond_var##
no
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##cond_var=block##
Choice conditional
##left?cond_var##
Stay at Left
##center?##
style="text-align:center">Hold Center
##right?##
style="text-align:center">Lean to Right
##*##
style="text-align:center">Dunno what to do with '##cond_var##'
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Iteration
##i:list_var##
##i>block##
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External blocks
##i:list_var##
##i>ext_block##
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##v=nest_block##
Choice conditional on ##v.cond##.
##left?v.cond##
Stay at Left
##center?##
style="text-align:center">Hold Center
##right?##
style="text-align:center">Lean to Right
##*##
style="text-align:center">Dunno what to do with '##v.cond##'
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Dot-notation
##i:nestlist_var##
##i>nest_block##
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