JavaScript Object Notation (JSON) Functions

The following routines are used to manipulate JavaScript objects as strings and are available when importing the librxjson.so library with CALL import "librxjson.so". For more information on json formating look at json.org

JSON(json, name [,start])

return value of parameter name from a json object. The searching of the parameter starts from index start

call json('{"a":null,"b":[1,2,3]}','b')

/* return "[1,2,3]" */

JSONARRAY(json [,idx [,start]])

return the idxelements in a json array, or the size of the array if idx is not specified. Optionally can start searching the idx elements from the start position

say jsonarray('[1,{"a":2},3]',2)

/* return '{"a":2}' */

JSONESC(str)

escape special characters in str object by backslash "\" to be used as values in a json object

say jsonesc('hello"there)

/* return 'hello\"there' */

JSONFIND(json, name [,start])

return the position of parameter name from a json object. The searching of the parameter starts from index start

call jsonfind('{"a":null,"b":[1,2,3]}','b')

/* return 11 */

JSONTYPE(json, pos)

return the type of the json object at location pos

call jsontype('{"a":null,"b":[1,2,3]}',15)

/* return "array" */

JSONVALUE(json, pos)

returns the vaule of the json object at location pos Sends the data to socket fd. It returns the number

call jsonvalue('{"a":null,"b":[1,2,3]}',15)

/* return "[1,2,3]" */