文件列表:

nfJson (0, 2017-12-02)
nfJson\Tests (0, 2017-12-02)
nfJson\Tests\collectionTest.prg (3817, 2017-12-02)
nfJson\Tests\emptyDateTest.PRG (643, 2017-12-02)
nfJson\Tests\escapetest.PRG (326, 2017-12-02)
nfJson\Tests\examples.PRG (3742, 2017-12-02)
nfJson\Tests\jsonSamples (0, 2017-12-02)
nfJson\Tests\jsonSamples\chutzpahSchema.json (15595, 2017-12-02)
nfJson\Tests\jsonSamples\cycloneForecast.json (11713, 2017-12-02)
nfJson\Tests\jsonSamples\dropbox.json (1070, 2017-12-02)
nfJson\Tests\jsonSamples\event.json (10692, 2017-12-02)
nfJson\Tests\jsonSamples\googleExtensionSchema.json (21941, 2017-12-02)
nfJson\Tests\jsonSamples\googleMapsDistance.json (1127, 2017-12-02)
nfJson\Tests\jsonSamples\iphone photo.json (1804, 2017-12-02)
nfJson\Tests\jsonSamples\jsonApi.json (1630, 2017-12-02)
nfJson\Tests\jsonSamples\mapquest.json (2007, 2017-12-02)
nfJson\Tests\jsonSamples\mySimpleArray.json (69, 2017-12-02)
nfJson\Tests\jsonSamples\tweeter.json (8815, 2017-12-02)
nfJson\Tests\jsonSamples\weatherService.json (12876, 2017-12-02)
nfJson\Tests\jsonSamples\yahooweather.json (3221, 2017-12-02)
nfJson\Tests\jsonSamples\youtubesearch.json (4850, 2017-12-02)
nfJson\Tests\nfopenjsontest.PRG (1272, 2017-12-02)
nfJson\Tests\temp (0, 2017-12-02)
nfJson\Tests\temp\Cursor tests Output.txt (1628, 2017-12-02)
nfJson\Tests\temp\colltest.json (1488, 2017-12-02)
nfJson\nfCursorToJson4vfp.PRG (240, 2017-12-02)
nfJson\nfOpenJson.PRG (3498, 2017-12-02)
nfJson\nfcursortojson.prg (527, 2017-12-02)
nfJson\nfcursortoobject.prg (1309, 2017-12-02)
nfJson\nfjsoncreate.PRG (8309, 2017-12-02)
nfJson\nfjsonread.PRG (14918, 2017-12-02)
nfJson\nfjsontocursor.PRG (1592, 2017-12-02)
nfJson\performanceTest (0, 2017-12-02)
nfJson\performanceTest\config.fpw (60, 2017-12-02)
nfJson\performanceTest\nfJsonPerfTest.PJT (26664, 2017-12-02)
nfJson\performanceTest\nfJsonPerfTest.PJX (1843, 2017-12-02)
nfJson\performanceTest\nfjsonperftest.PRG (3273, 2017-12-02)
... ...

# nfJson **Provides a set of fast performance, reliable and easy to use Json functions using pure VFP.** Project Manager: Marco Plaza ## Functions & Usage ( Each function is a single prg - No additional dependencies / Requires VFP9 ) * oJson = **nfJsonRead(**cJsonString , _isFileName_,_lReviveCollections_**)** * cJsonString = **nfJsonCreate(**oVfp, _lFormattedOutput, lNoNullArrayItems,cRootName,aMembersFlag_**)** * **nfJsonToCursor(**cJson, _cCursorName , lForceImportFromArray_**)** ( creates cursor back from Json created using nfCursorToJson4vfp ) * **nfCursorToJson4vfp()** _&& converts current open table/cursor to Json suitable for later use of nfJsonToCursor()_ * **nfCursorToJson(**_lReturnArray, lArrayofValues, lIncludestruct, lFormattedOutput_**)** __&& converts current open table/cursor to Json * **nfCursorToObject(**_lCopyToArray, lIncludeStruct_**)** * **BETA PREVIEW: nfOpenJson(** cJsonString , [ cArrayPath ], [cCursorStructure & object mappings ] ) Similar to SqlServer 2016 openJson function. Allows you to convert Json to cursor. Pass jsonString , optional array path using $. as object root and cursor structure as string with following structure for each column: `- [<$.propertyPath>]` Object types must use JSON as cast type ( see example ). Please check nfOpenJsonTest and [https://docs.microsoft.com/en-us/sql/t-sql/functions/openjson-transact-sql](https://docs.microsoft.com/en-us/sql/t-sql/functions/openjson-transact-sql) for clear understanding. text to mssample2 noshow [ { "Order": { "Number":"SO43659", "Date":"2011-05-31T00:00:00" }, "AccountNumber":"AW2***25", "Item": { "Price":2024.9940, "Quantity":1 } }, { "Order": { "Number":"SO43661", "Date":"2011-06-01T00:00:00" }, "AccountNumber":"AW73565", "Item": { "Price":2024.9940, "Quantity":3 } } ] ENDTEXT nfOpenJson( m.mssample2,'$.array','; - Number v(200) $.Order.Number ; - Date t $.Order.Date ; - Customer v(200) $.AccountNumber ; - itemPrice n(6,2) $.Item.Price ; - itemQuantity i $.Item.Quantity ; - Order JSON') browse nfOpenJson( m.msSample2 ) browse nfOpenJson( m.msSample2,'$.array') browse ## Tests & Sample files * **nfOpenJsonTest:** samples taken from [https://docs.microsoft.com/en-us/sql/t-sql/functions/openjson-transact-sql](https://docs.microsoft.com/en-us/sql/t-sql/functions/openjson-transact-sql) * **nfJsonPerfTest.prg:** just run it and choose one of the embedded json samples from the list to check performance on your pc. ( Allows you to parse Json from clipboard too. ) * **examples.prg** will parse the next Json files included in JsonSamples folder. just run from test folder and see sample code and output. * **collectionTest.prg:** creates a complex collection , converts it to Json and back to vfp. * Sample Json files included: * youtubesearch.json * cycloneForecast.json * dropbox.json * googleMapsDistance.json * iphone photo.json * mapquest.json * mySimpleArray.json * tweeter.json * weatherService.json * yahooweather.json ## Release Notes 2017/08/05 * no matter wich strictdate setting you have set, a JsonDateTime "0000-00-00T00:00:00" will return an empty date. * valid JsonDates with time "T00:00:00" will return a date value ( ie: {"testDate":"2017-12-01T00:00:00"} ) * invalid dates ( ie 2017/50/50 ) properly formatted as Json Date ( ie: 2017-50-50T00:00:00 ) will throw error; ( previous behavior was to return .null. ) 2017/03/10 * fixed: proper support for 19 character strings with ISO basic date format & different strictdate settings. 2017/02/05 * fixed: nfJsonRead bug fix: incorrect parsing for strings terminated with escaped double quotes; minor changes & code refactoring. 2017/01/11 * fixed: nfJsonRead: incorrect unescaped output with "set exact = on" * escapetest.prg - removed "leftover" lines. 2017/01/11 * fixed issue escaping values terminated with " * nfJsonRead: removed parameter "isFile" now you can just pass a file name or string * added test: escapeTest.prg 2016/09/28 * minor bug fix: zero item collections created as 1 empty item collection * proper indent for raw/formatted collection objects 2016/08/16 * nfJsonPerfTest: added compiled exe, samples file ships as a separate file for you to edit * fixed bug on test prgs: clean installs would fail due to missing temp folder on distribution zip w/o tests\temp folder * fixed bug on collectionTest 2016/07/22 * nfJsonRead: Improved error management * CollectionTest: added new test 2016/07/20 * Fixed bug: missing closing curly brace on collections as object member * Updated collections program test 2016/07/09 * Automatic cast for datetime properties ( ISO-8601 basic format & vfp compilant as described on [https://en.wikipedia.org/wiki/ISO_8601#Times](https://en.wikipedia.org/wiki/ISO_8601#Times). ) * nfJsonToCursor Bug Fix: "Date/datetime evaluated to an invalid value" while running under "strictdate = 1" converting empty dates back from Json 2016/07/04 * Added support for control characters encoding ( chr( 0) ~ chr(31) ) 2016/05/05 * invalid Json error shows calling program information 2016/04/02 * complex nested objects/arrays validation * missing object/array closures validation 2016/03/28 * nfJsonRead performs JSON validation: invalid Json throws error indicating reason. * nfJsonPerfTest: proper error management enabled for invalid Json input from clipboard * nfJsonToCursor: use of strict date format

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