--- /dev/null
+
+Operators.
+I currently have
+
+Binary: and or < > <= >= == != + - * / % ++
+prefix: not + -
+
+I might want:
+
+ Binary: and then, or else, integer division
+ Prefix: int
+ Suffix: dereference
+
+
+ Do I want COND ? IFTRUE : IFFALSE
+ or IFTRUE if COND else IFFALSE
+
+ Can / NUMBER
+ provide the integer part?
+
+ What can I use '!' '@' '#' '$' '^' '&' '*' '|'
+ for
+
+ bit-wise and/or/not/xor
+
+ != is 'xor' for Boolean
+
+ I should use & | ~ for bitwise. and or not
+ ~ could be an infix for xor
+ &~ could clear bits
+
+ What foo= options?
+ += -= *= /= %= &= |= ~=
+
+ Do I want "#n" to be (1 << n) ??
+
+ ++ is concat. What about
+ --
+ **
+ // - comment
+ @@
+ ^^
+ &&
+ || These last two are best avoided.
+
+ Pointers ... do I need a dereference operator?
+ Normally a pointer refers to the object it references (which isn't a pointer)
+ The only difficulty is
+ a = b
+ If a:foo and b:foo^ then b is dereferenced.
+ If a:foo^ and b:foo then a points to b
+ if a:foo^ and b:foo^ then a points to what b points to
+
+ So how do you change what a points to? I could have a de-reference operation
+ *a = b; a^ = b
+ but I think I want a structure-changing assignment
+ a @= b
+ then maybe
+ a @@= b
+ does a deep copy
+
+What types do operators act one?
+
+ numbers + - * / %
+ bitsets & | ~ &~
+ Boolean and or not "and then" "or else" "if .. else" What about and= ?? *= ??
+ string ++ < > == etc, regexp? strlen? append?
+ character? add to string? Convert to string?
+
+
+ What about error encoding? e.g. a pointer can have nil or other error encoded
+ A range-limited number could have extra codes outside that range.
+ Need to be able to :
+ convert error to type !error
+ test if value is error ?value
+ extract error code value!
code / ocean-D / blobdiff