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Clarify limitations with core.write_json()

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sfan5
2026-04-12 23:13:56 +02:00
parent 7cb14a6ad2
commit 0b6a482037
1 changed files with 7 additions and 5 deletions
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doc/lua_api.md
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@@ -7994,16 +7994,18 @@ Misc.
* Example: `parse_json("[10, {\"a\":false}]")`, returns `{10, {a = false}}`
* `core.write_json(data[, styled])`: returns a string or `nil` and an error
message.
* Convert a Lua table into a JSON string
* styled: Outputs in a human-readable format if this is set, defaults to
false.
* Convert a value into a JSON string
* `styled`: Outputs in a human-readable format if this is true, defaults to
`false`.
* Unserializable things like functions and userdata will cause an error.
* **Warning**: JSON is more strict than the Lua table format.
* **Warning**: JSON is stricter than Lua tables.
1. You can only use strings and positive integers of at least one as
keys.
2. You cannot mix string and integer keys.
This is due to the fact that JSON has two distinct array and object
values.
types.
3. Empty tables will be written as `null`, because it's not clear if it
should be a JSON array or object.
* Example: `write_json({10, {a = false}})`,
returns `'[10, {"a": false}]'`
* `core.serialize(table)`: returns a string