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This document describes corner cases in OSH for compatibility.
Related: Known Differences.
() on the RHSIn Oil, values are tagged with types like Str and AssocArray, as
opposed to the locations of values (cells).
This statement binds an empty indexed array to the name x:
x=() # indexed by integers
Quirk: When it's clear from the context, () means an empty
associative array:
declare -A x=() # indexed by strings, because of -A
This only applies when the array is empty. Otherwise the type is determined by the literal:
declare x=(one two) # indexed array
declare x=(['k']=v) # associative array
Redundant but OK:
declare -a x=(one two) # indexed array
declare -A x=(['k']=v) # associative array
Errors:
declare -A x=(one two) # inconsistent
declare -a x=(['k']=v) # inconsistent