Empty Multiline Array Is Having an Empty Line and Whitespace Added Before It #590
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Was able to replicate this; this is happening because a newline after a Decided to fix this by ignoring newlines after the |
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Thanks for the quick turn around on this as well as creating and maintaining this library! |
Blankll
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Feb 18, 2025
 <h3>Snyk has created this PR to upgrade yaml from 2.6.1 to 2.7.0.</h3> :information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project. <hr/> - The recommended version is **1 version** ahead of your current version. - The recommended version was released **2 months ago**. <details> <summary><b>Release notes</b></summary> <br/> <details> <summary>Package name: <b>yaml</b></summary> <ul> <li> <b>2.7.0</b> - <a href="https://redirect.github.com/eemeli/yaml/releases/tag/v2.7.0">2024-12-31</a></br><p>The library is now available on JSR as <a href="https://jsr.io/@ eemeli/yaml" rel="nofollow">@ eemeli/yaml</a> and on deno.land/x as <a href="https://deno.land/x/yaml" rel="nofollow">yaml</a>. In addition to Node.js and browsers, it should work in Deno, Bun, and Cloudflare Workers.</p> <ul> <li>Use .ts extension in all relative imports (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="2704495320" data-permission-text="Title is private" data-url="eemeli/yaml#591" data-hovercard-type="pull_request" data-hovercard-url="/eemeli/yaml/pull/591/hovercard" href="https://redirect.github.com/eemeli/yaml/pull/591">#591</a>)</li> <li>Ignore newline after block seq indicator as space before value (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="2684051086" data-permission-text="Title is private" data-url="eemeli/yaml#590" data-hovercard-type="issue" data-hovercard-url="/eemeli/yaml/issues/590/hovercard" href="https://redirect.github.com/eemeli/yaml/issues/590">#590</a>)</li> <li>Require Node.js 14.18 or later (was 14.6) (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="2765423835" data-permission-text="Title is private" data-url="eemeli/yaml#598" data-hovercard-type="issue" data-hovercard-url="/eemeli/yaml/issues/598/hovercard" href="https://redirect.github.com/eemeli/yaml/issues/598">#598</a>)</li> </ul> </li> <li> <b>2.6.1</b> - <a href="https://redirect.github.com/eemeli/yaml/releases/tag/v2.6.1">2024-11-19</a></br><ul> <li>Do not strip <code>:00</code> seconds from <code>!!timestamp</code> values (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="2561052215" data-permission-text="Title is private" data-url="eemeli/yaml#578" data-hovercard-type="pull_request" data-hovercard-url="/eemeli/yaml/pull/578/hovercard" href="https://redirect.github.com/eemeli/yaml/pull/578">#578</a>, with thanks to <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/qraynaud/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/qraynaud">@ qraynaud</a>)</li> <li>Tighten regexp for JSON <code>!!bool</code> (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="2651384053" data-permission-text="Title is private" data-url="eemeli/yaml#587" data-hovercard-type="pull_request" data-hovercard-url="/eemeli/yaml/pull/587/hovercard" href="https://redirect.github.com/eemeli/yaml/pull/587">#587</a>, with thanks to <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/vra5107/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://redirect.github.com/vra5107">@ vra5107</a>)</li> <li>Default to literal block scalar if folded would overflow (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="2594165845" data-permission-text="Title is private" data-url="eemeli/yaml#585" data-hovercard-type="issue" data-hovercard-url="/eemeli/yaml/issues/585/hovercard" href="https://redirect.github.com/eemeli/yaml/issues/585">#585</a>)</li> </ul> </li> </ul> from <a href="https://redirect.github.com/eemeli/yaml/releases">yaml GitHub release notes</a> </details> </details> --- > [!IMPORTANT] > > - 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Describe the bug
Thanks for creating this YAML parser. I have been working on using it in one of my projects and I have hit a weird scenario. It seems that in some cases, empty multi-line arrays are having their empty entry moved down a line and having its indentation space added on the line it was on. I am not sure if this YAML is considered correct under the YAML spec in use, so please let me know if the YAML is incorrect/out of spec.
To Reproduce
parseDocumentthentoStringthe following YAML:FFF: -It seems to result in:
--- FFF: - ---This seems wrong to me, but maybe that is what the spec dictates should happen.
Expected behaviour
I expect the output to be as close to, if not the same as, the input as is possible:
FFF: -Versions (please complete the following information):
yaml: 2.6.0Additional context
I am not 100% sure on how nesting levels would affect this or if it would be fine to try to investigate the root cause of the issue. But I would be happy to take a stab at it if you are fine with that.
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