Difference between revisions of "JSON INVALID"
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(Added caveat when used with json generators.) |
(Example usage for iterating over an array.) |
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| Line 5: | Line 5: | ||
|dvalue={{HoverText|""|Special Unicode Character
Unicode:	U+FDDO
HTML:	
llUnescapeUrl({{String|%EF%B7%90}});}} | |dvalue={{HoverText|""|Special Unicode Character
Unicode:	U+FDDO
HTML:	
llUnescapeUrl({{String|%EF%B7%90}});}} | ||
|desc=A return value that indicates an invalid 'type' was specified to the [[llList2Json]] function.<br/>Also a return value for [[llJsonValueType]] function indicating the data type of a given address specifier in a given string-serialized JSON object. | |desc=A return value that indicates an invalid 'type' was specified to the [[llList2Json]] function.<br/>Also a return value for [[llJsonValueType]] function indicating the data type of a given address specifier in a given string-serialized JSON object. | ||
<br/>Also a return value for [[llJsonGetValue]] to signify a specifier list attempting to access a nonexistent location within a Json text (see Examples). | |||
|constants={{LSL Constants/JSON}} | |constants={{LSL Constants/JSON}} | ||
|examples | |examples=<lsl>// Using JSON_INVALID to iterate over a json array | ||
// of unknown length | |||
string jsonText = "[1,2,3,5,6]"; | |||
default | |||
{ | |||
touch_start(integer total_number) | |||
{ | |||
string item; | |||
integer iter; | |||
while ((item = llJsonGetValue(jsonText,[iter++])) != JSON_INVALID) | |||
{ | |||
llOwnerSay(item); // "1","2","3","5","6" | |||
} | |||
} | |||
}</lsl> | |||
|caveats=*Do '''not''' use JSON_INVALID with the [[llList2Json]] or [[llJsonSetValue]] functions. Otherwise noncompliant, invalid Json text will result. | |caveats=*Do '''not''' use JSON_INVALID with the [[llList2Json]] or [[llJsonSetValue]] functions. Otherwise noncompliant, invalid Json text will result. | ||
Revision as of 08:33, 3 September 2013
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Description
Constant: string JSON_INVALID = "";The string constant JSON_INVALID has the value ""
A return value that indicates an invalid 'type' was specified to the llList2Json function.
Also a return value for llJsonValueType function indicating the data type of a given address specifier in a given string-serialized JSON object.
Also a return value for llJsonGetValue to signify a specifier list attempting to access a nonexistent location within a Json text (see Examples).
Caveats
- Do not use JSON_INVALID with the llList2Json or llJsonSetValue functions. Otherwise noncompliant, invalid Json text will result.
Related Articles
Constants
| Type Flags | Value | Unicode | Integer | URL Encoded | HTML Encoded | Description |
|---|---|---|---|---|---|---|
| JSON_INVALID | | U+FDDO | 64976 | "%EF%B7%90" |  | Value returned when inputs are not well formed. |
| JSON_OBJECT | | U+FDD1 | 64977 | "%EF%B7%91" |  | |
| JSON_ARRAY | | U+FDD2 | 64978 | "%EF%B7%92" |  | |
| JSON_NUMBER | | U+FDD3 | 64979 | "%EF%B7%93" |  | |
| JSON_STRING | | U+FDD4 | 64980 | "%EF%B7%94" |  | |
| JSON_NULL | | U+FDD5 | 64981 | "%EF%B7%95" |  | |
| JSON_TRUE | | U+FDD6 | 64982 | "%EF%B7%96" |  | |
| JSON_FALSE | | U+FDD7 | 64983 | "%EF%B7%97" |  | |
| JSON_DELETE | | U+FDD8 | 64984 | "%EF%B7%98" |  | Used with llJsonSetValue to remove a key-value pair. |
Functions
| • | llList2Json | |||
| • | llJsonValueType |
Examples
<lsl>// Using JSON_INVALID to iterate over a json array // of unknown length string jsonText = "[1,2,3,5,6]";
default {
touch_start(integer total_number)
{
string item;
integer iter;
while ((item = llJsonGetValue(jsonText,[iter++])) != JSON_INVALID)
{
llOwnerSay(item); // "1","2","3","5","6"
}
}
}</lsl>