Campbell Scientific LoggerNet Datalogger Support Software - Manual (Page 508)

Appendix B. Campbell Scientific File Formats
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52.5
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32.15
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30.34
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10.06
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84.6
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13.21
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11.86
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217.4
0
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0
922
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26.68
764.5
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761.7
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0
B.1.8 CSIJSON
CSIJSON is a file format that is relatively easy to parse in any language but
more particularly so in JavaScript since it adopts the same syntax rules that are
used for JavaScript object initialization. Its structure is much like CSIXML It is
very easy to digest in a JavaScript or ActionScript (Flash) environment and is
probably the most efficient means of handling CSI generated data in a web
browser context.
The CSIJSON file format is available for some CRBasic instructions including
TableFile and the WebPageBegin/WebPageEnd Format command.
B.1.8.1 A Short Introduction to JSON
Much like XML, JSON is a recursive structure with a root object (represented
by an opening and closing curly brace (‘{‘ and ‘}’). This root object can
contain named strings, numbers, objects, and arrays. A simple object
specification follows:
{
"head": {
"signature": xxxx,
"transaction": "xxxxyyyy",
"environment": {
}
"fields": [
]
},
"data": [ ]
}
This declaration declares an object that contains two empty sub-objects, head,
and data. In a JavaScript program, a string in this format can be easily parsed
using the Eval() function or the newer ParseJSON() function. Once parsed, the
data contained therein can be accessed using standard JavaScript notation.
B-14