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Non-matched optional capture group should be null and offset -1 (#3238)

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Fixes #3093
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Mattias Wadman authored and GitHub committed 2025-02-04 19:18:58 +01:00
1 parent d0adcbfebb
commit 2755664a8e
2 files changed
+34 -3
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tests/onig.test
+27 -1
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@@ -1,7 +1,7 @@
# match builtin
[match("( )*"; "g")]
"abc"
[{"offset":0,"length":0,"string":"","captures":[{"offset":0,"string":"","length":0,"name":null}]},{"offset":1,"length":0,"string":"","captures":[{"offset":1,"string":"","length":0,"name":null}]},{"offset":2,"length":0,"string":"","captures":[{"offset":2,"string":"","length":0,"name":null}]},{"offset":3,"length":0,"string":"","captures":[{"offset":3,"string":"","length":0,"name":null}]}]
[{"offset":0,"length":0,"string":"","captures":[{"offset":-1,"string":null,"length":0,"name":null}]},{"offset":1,"length":0,"string":"","captures":[{"offset":-1,"string":null,"length":0,"name":null}]},{"offset":2,"length":0,"string":"","captures":[{"offset":-1,"string":null,"length":0,"name":null}]},{"offset":3,"length":0,"string":"","captures":[{"offset":-1,"string":null,"length":0,"name":null}]}]
[match("( )*"; "gn")]
"abc"
@@ -37,6 +37,32 @@
"foo bar foo foo foo"
[{"offset": 0, "length": 11, "string": "foo bar foo", "captures":[{"offset": 4, "length": 3, "string": "bar", "name": "bar123"}]},{"offset":12, "length": 8, "string": "foo foo", "captures":[{"offset": -1, "length": 0, "string": null, "name": "bar123"}]}]
# non-matched optional group
"a","b","c" | capture("(?<x>a)?b?")
null
{"x":"a"}
{"x":null}
{"x":null}
"a","b","c" | match("(?<x>a)?b?")
null
{"offset":0,"length":1,"string":"a","captures":[{"offset":0,"length":1,"string":"a","name":"x"}]}
{"offset":0,"length":1,"string":"b","captures":[{"offset":-1,"string":null,"length":0,"name":"x"}]}
{"offset":0,"length":0,"string":"","captures":[{"offset":-1,"string":null,"length":0,"name":"x"}]}
# same as above but allow empty match for group
"a","b","c" | capture("(?<x>a?)?b?")
null
{"x":"a"}
{"x":""}
{"x":""}
"a","b","c" | match("(?<x>a?)?b?")
null
{"offset":0,"length":1,"string":"a","captures":[{"offset":0,"length":1,"string":"a","name":"x"}]}
{"offset":0,"length":1,"string":"b","captures":[{"offset":0,"string":"","length":0,"name":"x"}]}
{"offset":0,"length":0,"string":"","captures":[{"offset":0,"string":"","length":0,"name":"x"}]}
#test builtin
[test("( )*"; "gn")]
"abc"