go-pkg/expr
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several changes:

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1. moved scan/symbol.go to new package sym and adapted all files that reference Symbol type and its values.
2. new type interval defined by begin, end and step values.
3. replaced operator-range.go with operator-interval.go.
4. replaced range operator begin:end with begin..end..step.
5. new implementation of sub-collection extraction based on new interval literal.
This commit is contained in:
Celestino Amoroso
2026-07-27 16:01:52 +02:00
parent 07aecfc4e7
commit 8e596d5979
63 changed files with 1125 additions and 755 deletions
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t_array_test.go
+11 -17
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@@ -39,23 +39,17 @@ func TestArray(t *testing.T) {
/* 23 */ {`a=[1,2]; (a)<+3; a`, array.NewArrayA(int64(1), int64(2)), nil},
/* 24 */ {`["a","b","c","d"][1]`, "b", nil},
/* 25 */ {`["a","b","c","d"][1,1]`, nil, `[1:19] one index only is allowed`},
/* 26 */ {`[0,1,2,3,4][:]`, array.NewArrayA(int64(0), int64(1), int64(2), int64(3), int64(4)), nil},
/* 27 */ {`["a", "b", "c"] <+ ;`, nil, `[1:18] infix operator "<+" requires two non-nil operands, got 1`},
/* 28 */ {`but +> ["a", "b", "c"]`, nil, `[1:6] infix operator "+>" requires two non-nil operands, got 0`},
/* 29 */ {`a=[1,2]; a<+3`, array.NewArrayA(int64(1), int64(2), int64(3)), nil},
/* 30 */ {`a=[1,2]; 5+>a`, array.NewArrayA(int64(5), int64(1), int64(2)), nil},
/* 31 */ {`L=[1,2]; L[0]=9; L`, array.NewArrayA(int64(9), int64(2)), nil},
/* 32 */ {`L=[1,2]; L[5]=9; L`, nil, `index 5 out of bounds (0, 1)`},
/* 33 */ {`L=[1,2]; L[]=9; L`, nil, `[1:12] index/key specification expected, got [] [array]`},
/* 34 */ {`L=[1,2]; L[nil]=9;`, nil, `[1:12] index/key is nil`},
/* 35 */ {`[0,1,2,3,4][2:3]`, array.NewArrayA(int64(2)), nil},
/* 36 */ {`[0,1,2,3,4][3:-1]`, array.NewArrayA(int64(3)), nil},
/* 37 */ {`[0,1,2,3,4][-3:-1]`, array.NewArrayA(int64(2), int64(3)), nil},
/* 38 */ {`[0,1,2,3,4][0:]`, array.NewArrayA(int64(0), int64(1), int64(2), int64(3), int64(4)), nil},
/* 39 */ {`2 IN [1,2,3]`, true, nil},
/* 40 */ {`2 AT [1,2,3]`, int64(1), nil},
/* 41 */ {`4 AT [1,2,3]`, int64(-1), nil},
// /* 44 */ {`[0,1,2,3,4][2:3]`, kern.NewListA(int64(20)), nil},
/* 26 */ {`["a", "b", "c"] <+ ;`, nil, `[1:18] infix operator "<+" requires two non-nil operands, got 1`},
/* 27 */ {`but +> ["a", "b", "c"]`, nil, `[1:6] infix operator "+>" requires two non-nil operands, got 0`},
/* 28 */ {`a=[1,2]; a<+3`, array.NewArrayA(int64(1), int64(2), int64(3)), nil},
/* 29 */ {`a=[1,2]; 5+>a`, array.NewArrayA(int64(5), int64(1), int64(2)), nil},
/* 30 */ {`L=[1,2]; L[0]=9; L`, array.NewArrayA(int64(9), int64(2)), nil},
/* 31 */ {`L=[1,2]; L[5]=9; L`, nil, `index 5 out of bounds (0, 1)`},
/* 32 */ {`L=[1,2]; L[]=9; L`, nil, `[1:12] index/key specification expected, got [] [array]`},
/* 33 */ {`L=[1,2]; L[nil]=9;`, nil, `[1:12] index/key is nil`},
/* 34 */ {`2 IN [1,2,3]`, true, nil},
/* 35 */ {`2 AT [1,2,3]`, int64(1), nil},
/* 36 */ {`4 AT [1,2,3]`, int64(-1), nil},
}
// t.Setenv("EXPR_PATH", ".")