Difference between revisions of "JSON OBJECT"
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(Created page with "{{LSL Constant |name=JSON_OBJECT |type=string |value=Special Unicode Character |desc=Indicates to llList2Json function that the list provided must be a strided list of key, value…") |
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|name=JSON_OBJECT | |name=JSON_OBJECT | ||
|type=string | |type=string | ||
|value=Special Unicode Character | |value="" | ||
|desc= | |dvalue={{HoverText|""|Special Unicode Character
Unicode:	U+FDD1
HTML:	&#xFDD1;
llUnescapeUrl({{String|%EF%B7%91}});}} | ||
|examples | |desc=Used with the [[llList2Json]] function to indicate that the list provided is a strided list of "Key", Value pairs (which may be empty), and that a string representing a Json object will be returned. | ||
Also a possible return value for the [[llJsonValueType]] function that indicates the Json data type of at the specifier location within a given Json text is, in fact, a JSON_OBJECT. | |||
|constants={{LSL Constants/JSON}} | |||
|examples=Showing use to form a Json object: | |||
<source lang="lsl2">string jsonText; | |||
default | |||
{ | |||
state_entry() | |||
{ | |||
// NOTE: All even numbered elements in the supplied list MUST be strings or JSON_INVALID will be returned! | |||
jsonText = llList2Json(JSON_OBJECT, ["A", 3, "B", <1.0,1.0,1.0>, "C", "A phrase", "D", PI]); | |||
} | |||
touch_start(integer total_number) | |||
{ | |||
// In the resulting Json object, "Keys" are separarted from Values by a colon (:) | |||
// and "Key":Value pairs by a comma (,). | |||
llOwnerSay(jsonText); // {"A":3,"B":"<1.000000, 1.000000, 1.000000>","C":"A phrase","D":3.141593} | |||
} | |||
}</source> | |||
Showing usage to determine if a Value within a Json text is an object: | |||
<source lang="lsl2">string jsonText; | |||
default | |||
{ | |||
state_entry() | |||
{ | |||
// Set jsonText to [3,{"A":77,"B":66},"A phrase"] | |||
// A Json array whose second element is a Json object | |||
jsonText = "[3,{\"A\":77,\"B\":66},\"A phrase\"]"; | |||
llOwnerSay(jsonText); | |||
} | |||
touch_start(integer total_number) | |||
{ | |||
// Test the entirety of the Json text to see if it's an object | |||
// Note use of the empty list for this | |||
if (llJsonValueType(jsonText, []) == JSON_OBJECT) | |||
{ | |||
llOwnerSay("The supplied string is a Json object."); | |||
} else { | |||
llOwnerSay("The supplied string is not a Json object."); // TRUE | |||
} | |||
// Test second element of the array | |||
if (llJsonValueType(jsonText, [1]) == JSON_OBJECT) | |||
{ | |||
llOwnerSay("The second element of the array is a Json object."); // TRUE | |||
} else { | |||
llOwnerSay("The second element of the array is not a Json object."); | |||
} | |||
} | |||
}</source> | |||
|functions= | |functions= | ||
{{LSL DefineRow||[[llList2Json]]|}} | {{LSL DefineRow||[[llList2Json]]|}} | ||
{{LSL DefineRow||[[llJsonValueType]]|}} | |||
|events | |events | ||
|cat1 | |cat1=JSON | ||
|cat2 | |cat2 | ||
|cat3 | |cat3 |
Latest revision as of 14:51, 23 January 2015
LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Description
Constant: string JSON_OBJECT = "";The string constant JSON_OBJECT has the value ""
Used with the llList2Json function to indicate that the list provided is a strided list of "Key", Value pairs (which may be empty), and that a string representing a Json object will be returned.
Also a possible return value for the llJsonValueType function that indicates the Json data type of at the specifier location within a given Json text is, in fact, a JSON_OBJECT.
Caveats
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
Showing use to form a Json object:
string jsonText;
default
{
state_entry()
{
// NOTE: All even numbered elements in the supplied list MUST be strings or JSON_INVALID will be returned!
jsonText = llList2Json(JSON_OBJECT, ["A", 3, "B", <1.0,1.0,1.0>, "C", "A phrase", "D", PI]);
}
touch_start(integer total_number)
{
// In the resulting Json object, "Keys" are separarted from Values by a colon (:)
// and "Key":Value pairs by a comma (,).
llOwnerSay(jsonText); // {"A":3,"B":"<1.000000, 1.000000, 1.000000>","C":"A phrase","D":3.141593}
}
}
Showing usage to determine if a Value within a Json text is an object:
string jsonText;
default
{
state_entry()
{
// Set jsonText to [3,{"A":77,"B":66},"A phrase"]
// A Json array whose second element is a Json object
jsonText = "[3,{\"A\":77,\"B\":66},\"A phrase\"]";
llOwnerSay(jsonText);
}
touch_start(integer total_number)
{
// Test the entirety of the Json text to see if it's an object
// Note use of the empty list for this
if (llJsonValueType(jsonText, []) == JSON_OBJECT)
{
llOwnerSay("The supplied string is a Json object.");
} else {
llOwnerSay("The supplied string is not a Json object."); // TRUE
}
// Test second element of the array
if (llJsonValueType(jsonText, [1]) == JSON_OBJECT)
{
llOwnerSay("The second element of the array is a Json object."); // TRUE
} else {
llOwnerSay("The second element of the array is not a Json object.");
}
}
}