jsontl
v0.1.3
Published
JSON Transformation Language
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JSON Trasnformation Language
jsontl is a library inteded to allow tranformation of JSON data using a JSON-based transformation language. For more information, see the specification proposal.
##Format
The format for jsontl transforms (.jsontl
files) is as follows:
{
"jsont": {
"version": "0.1",
"transform": {
"Property": [{
"operation": {
"param": "value"
}
}]
}
}
}
##Transform Definitions
JSONT transform definitions are defined by a JavaScript object containing, at a minimum, the name of a property of the object to transform, and an array of one or more Transform Operations to perform on that data.
###Example
{
"Value": [
"replace": {
"with": "Two"
}
]
}
##Transformation Operations
So far, JSONT provides two basic transform operations: replace
, and expand
.
###replace
The replace
operation replaces one value with another. It has one required and one optional argument.
{
"replace": {
"FirstName": {
"with": "Bob", // `with` value is required
"when": { // conditional `when` is optional
"LastName": "Smith"
}
}
}
###extend
The extend
operation recursively adds properties to an object. It has one required and one optional argument.
{
"extend": {
"MiddleInitial": "X", // must provide at least one key/value pair to add
"when" : { // may optionally provide a `when` condition
"FirstName" : "Bob"
}
}
}
###push
The push
operation adds a value to a property, if that property's value is an Array
type.
{
"push": {
"some": "object"
}
}
####Conditional Operations
The when
condition in JSONT transform operations defines an object with a set of key/value pairs that must all and match the values of that in the target object.
The if
condition is similar to the when
condition, but performs an OR
operation. If any values provided match that of the data, the operation is excuted.
##Changelog
- 0.1.0
- Initial release. Includes
replace
andextend
operations
- Initial release. Includes
- 0.1.1
- Major rewrite; no functional changes
- 0.1.2
- Added
push
operation
- Added
- 0.1.3
- Added
if
condition
- Added
##Planned Improvements
- Add
pop
operation, as well as otherArray
-related operations - Add extensiblity points (custom operations, conditions, etc.)
- General code clean-up, extensive comments