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Add string slicing support (#2639)

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* Initial plan

* Add string slicing support to yq

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* Fix sliceStringNode signature and fix test descriptions/expressions

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* Update pkg/yqlib/operator_slice.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Fix array slice out-of-bounds panic with very negative indices

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* S2-S4: tighten lexer condition, fix doc header, add Unicode example

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* Fix spelling: multibyte -> multi-byte in Unicode test subdescription

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---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: mikefarah <1151925+mikefarah@users.noreply.github.com>
Co-authored-by: Mike Farah <mikefarah@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
Copilot
2026-04-06 19:29:07 +10:00
committed by GitHub
co-authored by mikefarah Copilot copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Mike Farah
parent 68f0322ba3
commit 3b2423e871
7 changed files with 203 additions and 10 deletions
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pkg/yqlib/operator_traverse_path.go
+5 -1
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@@ -99,7 +99,11 @@ func traverseArrayOperator(d *dataTreeNavigator, context Context, expressionNode
log.Debugf("--traverseArrayOperator")
if expressionNode.RHS != nil && expressionNode.RHS.RHS != nil && expressionNode.RHS.RHS.Operation.OperationType == createMapOpType {
return sliceArrayOperator(d, context, expressionNode.RHS.RHS)
lhsContext, err := d.GetMatchingNodes(context, expressionNode.LHS)
if err != nil {
return Context{}, err
}
return sliceArrayOperator(d, lhsContext, expressionNode.RHS.RHS)
}
lhs, err := d.GetMatchingNodes(context, expressionNode.LHS)