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--argjson not supported #180

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bb1 opened this issue May 7, 2024 · 5 comments
Open

--argjson not supported #180

bb1 opened this issue May 7, 2024 · 5 comments
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good first issue Good for newcomers

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@bb1
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bb1 commented May 7, 2024

This is useful when working with lists.
Here is a test from the original jq:
https://github.com/jqlang/jq/blob/c1276169d658783924add7ff72bb2e2d07b04141/tests/shtest#L289

Also great tool! Thanks for creating it! :)

@01mf02
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01mf02 commented May 7, 2024

This would probably make a nice first issue if someone wants to work on this. :)

@01mf02
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01mf02 commented May 7, 2024

Note that --argjson a '[1, 2, 3] binds $a to [1, 2, 3], yet:

$ jq --argjson a '1 2 3' -n '$a'
jq: invalid JSON text passed to --argjson

So --argjson only considers a single JSON value, like fromjson.

@01mf02
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01mf02 commented May 7, 2024

In the meanwhile, @bb1, you can use --arg a v and then use $a | fromjson instead of $a.

@01mf02 01mf02 added the good first issue Good for newcomers label May 7, 2024
@bb1
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bb1 commented May 7, 2024

I added a link to the test-case for this parameter in the original jq. But I'm still not quiet sure that I understand the difference.
BTW: maybe adding these test-cases would increase the compatibility even more.

@wader
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wader commented May 7, 2024

@bb1 difference using --arg workaround? you can do something like:

# parse and shadow $a binding with a new $a
$ jaq -nc --arg a '[1,2,3]' '($a | fromjson) as $a | $a'
[1,2,3]
# works same as
$ jq -nc --argjson a '[1,2,3]' '$a'
[1,2,3]

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