Select not equal without spaces does not work

[arve0]

Hi and thanks for yq 🙌 I use it every day, it's great!

With multi-document, yq is unable to deselect a document when != operator does not have space around it.

Example:

❯ echo -e 'a: 1\n---\na: 2' | yq 'select(.a!=1)'
a: 1
---
a: 2

Expected output is a: 2.

Spaces around or before works as expected:

❯ echo -e 'a: 1\n---\na: 2' | yq 'select(.a != 1)'
a: 2

❯ echo -e 'a: 1\n---\na: 2' | yq 'select(.a !=1)'
a: 2

But not when space after, suggesting it is mixing .a and ! together:

❯ echo -e 'a: 1\n---\na: 2' | yq 'select(.a!= 1)'
a: 1
---
a: 2

Version of yq: 4.34.1
Operating system: mac
Installed via: homebrew

Input Yaml
data.yaml:

a: 1
---
a: 2

Command

yq 'select(.a!=1)' data.yaml

Actual behavior

a: 1
---
a: 2

Expected behavior

a: 2

Additional context
Reported in #1377 also. Select with == without spaces works fine, for example select(.a==1).

I have not looked at the yq code, but I can give the bug a try if I get a pointer for where to look 😊 Assuming this is considered a bug.

[mikefarah]

That is odd. Looking at the code it thinks that the exclamation mark is part of the property name. Will fix in the next version :)

[mikefarah]

Also - glad you like yq :)

[mikefarah]

Fixed in 4.35.2