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Add ignore_trailing_commas option (#4609)

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Added examples and modified the corresponding documents and unit tests.

Signed-off-by: chirsz-ever <chirsz-ever@outlook.com>
Co-authored-by: Niels Lohmann <niels.lohmann@gmail.com>
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chirsz
2025-05-22 14:01:46 +08:00
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parent 2d9a251266
commit 4b17f90f65
15 changed files with 386 additions and 148 deletions
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README.md
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@@ -1801,7 +1801,17 @@ This library does not support comments by default. It does so for three reasons:
3. It is dangerous for interoperability if some libraries would add comment support while others don't. Please check [The Harmful Consequences of the Robustness Principle](https://tools.ietf.org/html/draft-iab-protocol-maintenance-01) on this.
However, you can pass set parameter `ignore_comments` to true in the `parse` function to ignore `//` or `/* */` comments. Comments will then be treated as whitespace.
However, you can set set parameter `ignore_comments` to true in the `parse` function to ignore `//` or `/* */` comments. Comments will then be treated as whitespace.
### Trailing commas
The JSON specification does not allow trailing commas in arrays and objects, and hence this library is treating them as parsing errors by default.
Like comments, you can set parameter `ignore_trailing_commas` to true in the `parse` function to ignore trailing commas in arrays and objects. Note that a single comma as the only content of the array or object (`[,]` or `{,}`) is not allowed, and multiple trailing commas (`[1,,]`) are not allowed either.
This library does not add trailing commas when serializing JSON data.
For more information, see [JSON With Commas and Comments (JWCC)](https://nigeltao.github.io/blog/2021/json-with-commas-comments.html).
### Order of object keys