suyiiyii/yq
1
0
Fork 0
mirror of https://github.com/mikefarah/yq.git synced 2026-09-05 00:54:51 +08:00
Code Issues Packages Projects Releases Wiki Activity

Add string slicing support (#2639)

Browse Source 
* Initial plan

* Add string slicing support to yq

Agent-Logs-Url: https://github.com/mikefarah/yq/sessions/a8525fbb-77a7-4bb0-a3a7-b24f99ae8710

Co-authored-by: mikefarah <1151925+mikefarah@users.noreply.github.com>

* Fix sliceStringNode signature and fix test descriptions/expressions

Agent-Logs-Url: https://github.com/mikefarah/yq/sessions/58726b13-68ae-4f93-971f-eb70459edcf4

Co-authored-by: mikefarah <1151925+mikefarah@users.noreply.github.com>

* 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

Agent-Logs-Url: https://github.com/mikefarah/yq/sessions/7c146762-d251-45fd-8555-2488f59fc57b

Co-authored-by: mikefarah <1151925+mikefarah@users.noreply.github.com>

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

Agent-Logs-Url: https://github.com/mikefarah/yq/sessions/ec06083e-e20a-45d2-bf7e-4e1fa7be1073

Co-authored-by: mikefarah <1151925+mikefarah@users.noreply.github.com>

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

Agent-Logs-Url: https://github.com/mikefarah/yq/sessions/6e7b304b-5b52-4e89-8bad-ba22813305c7

Co-authored-by: mikefarah <1151925+mikefarah@users.noreply.github.com>

---------

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
Download Patch File Download Diff File Expand all files Collapse all files
pkg/yqlib/operator_slice_test.go
+78
View File
@@ -129,6 +129,84 @@ var sliceArrayScenarios = []expressionScenario{
"D0, P[], (!!seq)::[]\n",
},
},
{
description: "Slicing strings",
document: `country: Australia`,
expression: `.country[0:5]`,
expected: []string{
"D0, P[country], (!!str)::Austr\n",
},
},
{
description: "Slicing strings - without the second number",
subdescription: "Finishes at the end of the string",
document: `country: Australia`,
expression: `.country[5:]`,
expected: []string{
"D0, P[country], (!!str)::alia\n",
},
},
{
description: "Slicing strings - without the first number",
subdescription: "Starts from the start of the string",
document: `country: Australia`,
expression: `.country[:5]`,
expected: []string{
"D0, P[country], (!!str)::Austr\n",
},
},
{
description: "Slicing strings - use negative numbers to count backwards from the end",
subdescription: "Negative indices count from the end of the string",
document: `country: Australia`,
expression: `.country[-5:]`,
expected: []string{
"D0, P[country], (!!str)::ralia\n",
},
},
{
skipDoc: true,
document: `country: Australia`,
expression: `.country[1:-1]`,
expected: []string{
"D0, P[country], (!!str)::ustrali\n",
},
},
{
skipDoc: true,
document: `country: Australia`,
expression: `.country[:]`,
expected: []string{
"D0, P[country], (!!str)::Australia\n",
},
},
{
skipDoc: true,
description: "second index beyond string length clamps",
document: `country: Australia`,
expression: `.country[:100]`,
expected: []string{
"D0, P[country], (!!str)::Australia\n",
},
},
{
skipDoc: true,
description: "first index beyond string length returns empty string",
document: `country: Australia`,
expression: `.country[100:]`,
expected: []string{
"D0, P[country], (!!str)::\n",
},
},
{
description: "Slicing strings - Unicode",
subdescription: "Indices are rune-based, so multi-byte characters are handled correctly",
document: `greeting: héllo`,
expression: `.greeting[1:3]`,
expected: []string{
"D0, P[greeting], (!!str)::él\n",
},
},
}
func TestSliceOperatorScenarios(t *testing.T) {