Difference between revisions of "LlJsonSetValue"
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|func=llJsonSetValue|return_type=string|p1_type=string|p1_name=json|p2_type=list|p2_name=specifiers|p3_type=string|p3_name=value | |func=llJsonSetValue|return_type=string|p1_type=string|p1_name=json|p2_type=list|p2_name=specifiers|p3_type=string|p3_name=value | ||
|func_footnote | |func_footnote | ||
|func_desc=Returns a new [http://json.org JSON] string which is '' | |func_desc=Returns, if successful, a new [http://json.org JSON] text ''string'' which is ''json'' with the value indicated by the ''specifiers'' list set to ''value''. | ||
If unsuccessful (usually because of specifying an out of range array index) it should, and usually will, return [[JSON_INVALID]]. However this is currently, 8/20/2013, broken at depths lower than the topmost level, where it will silently invalidate the return ''string'', so '''be careful'''! The return ''string'' should always be checked for [[JSON_INVALID]] before overwriting the original Json text. | |||
An "out of range array index" is defined to be any Integer ''specifier'' greater than the length of an existing array at that level within the Json text or greater than 0 (zero) at a level an array doesn't exist. | |||
A special ''specifier'', [[JSON_APPEND]], is accepted which appends the ''value'' to the end of the array at the ''specified'' level. Care should be taken- if that level is not an array, the existing Value there will be overwritten and replaced with an array containing ''value'' at it's first (0) index. | |||
Contrary to [[LSL_List]], negative indexing of Json arrays is '''not''' supported. | |||
If an existing "Key" is ''specified'' at that level, its Value will be overwritten by ''value'', otherwise a new "Key":Value pair will be formed within the Json object. | |||
If ''value'' is [[JSON_TRUE]], [[JSON_FALSE]] or [[JSON_NULL]], the Value set will be the bare words 'true', 'false' or 'null', respectively, at the ''specified'' location within ''json''. | |||
|return_text= | |return_text= | ||
|spec=See [[Json_usage_in_LSL]] | |spec=See [[Json_usage_in_LSL]] | ||
Revision as of 16:05, 30 August 2013
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Summary
Function: string llJsonSetValue( string json, list specifiers, string value );| ? | Function ID |
| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns, if successful, a new JSON text string which is json with the value indicated by the specifiers list set to value.
If unsuccessful (usually because of specifying an out of range array index) it should, and usually will, return JSON_INVALID. However this is currently, 8/20/2013, broken at depths lower than the topmost level, where it will silently invalidate the return string, so be careful! The return string should always be checked for JSON_INVALID before overwriting the original Json text.
An "out of range array index" is defined to be any Integer specifier greater than the length of an existing array at that level within the Json text or greater than 0 (zero) at a level an array doesn't exist.
A special specifier, JSON_APPEND, is accepted which appends the value to the end of the array at the specified level. Care should be taken- if that level is not an array, the existing Value there will be overwritten and replaced with an array containing value at it's first (0) index.
Contrary to LSL_List, negative indexing of Json arrays is not supported.
If an existing "Key" is specified at that level, its Value will be overwritten by value, otherwise a new "Key":Value pair will be formed within the Json object.
If value is JSON_TRUE, JSON_FALSE or JSON_NULL, the Value set will be the bare words 'true', 'false' or 'null', respectively, at the specified location within json.
Returns a string
| • string | json | |||
| • list | specifiers | |||
| • string | value |
Specification
Caveats
Examples
See Also
Deep Notes
History
Search JIRA for related Issues
Signature |
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function string llJsonSetValue( string json, list specifiers, string value ); |