Ability to validate xml on xsd using Objc / iPhone code at runtime

Question

I have xml files that I read at runtime, is it possible to check the xsd xml file at runtime using Obj C ?? This can be done in java and c # . But I need to complete this time in my iphone application.

Answer 1

I don't think you can do this using Obj C on iOS. I think you need to use libxml2.

Here is an example of a simple C program that validates XML on XSD.

Here are instructions for adding libxml2 to your Xcode project.

Answer 2

CodeSynthesis XSD/e iPhone ( Mac)

---

# 1:

XSD/e (libxsde.a), :

• XSD/e Mac OS X.

• :

  cd xsde-3.2.0-i686-macosx

  cp etc/ios/config-xcode.make config/config.make

  .

• config/config.make XSD/e .

• :

  cd libxsde

  make

  make , /Developer/usr/bin/make ( XCode).

• XCode :

  5.1 "" → " "

  5.2 "iOS Library" → "Cocoa Touch Static   ". "...".

  5.3 libxsde " "    xsde-3.2.0-i686-macosx. "".

  5.4 , libxsde    . , "".

  5.5 " " "   ", "" → " ...".

  5.6 xsde-3.2.0-i686-macosx/libxsde    src. "".

  5.7 "".    (.cxx .c),    " ".

  5.8 "" → " ", "".    "" " ".

  5.9 " " . ()    " ".

  5.10 "GCC 4.2 - Language"    -fvisibility = "Other C Flags"     -fvisibility = -fvisibility-inlines-     " ++". C/++     , .

  5.11 (,    Debug/Release, Device/Simulator, ARMv6/ARMv7 ..).

• "" , (, , ):

  cd build

  lipo -output libxsde.a -create Release-iphonesimulator/liblibxsde.a Release-iphoneos/liblibxsde.a

  lipo -output libxsde-d.a -create Debug-iphonesimulator/liblibxsde.a Debug-iphoneos/liblibxsde.a

- XSD/e, ( 1 ), XCode .

XSD/e :

• ++ XSD/e (xsde-3.2.0-i686-macosx/bin/xsde) ++ .

• XSD/e (libxsde), :

  2.1 "" ,    "".

  2.2 "" "" (+),   .

  2.3 " ..."    libxsde.a libxsde-d.a(debug), .

• XSD/e , :

  3.1 "" → " ", "".    "" " ".

  3.2 " "   xsde-3.2.0-i686-macosx/libxsde " ".

  3.3. .

Answer 3

objC Api iOS sdks. API- libxml C.

• you are loading xml (e.g. xmlReadMemory)
• then for XSD you should use xmlSchemaValidateDoc

or you can use the following wrapper class [disclaimer: I'm author]:
DDXMLValidator (part of my helpers @ https://github.com/Daij-Djan/DDUtils/ )

//validate
NSError *error = nil;
NSURL *schemaURL = [[NSBundle mainBundle] URLForResource:@"XMLSchema" withExtension:@"xsd"];
if(![[SNXMLValidator sharedInstace] validateXMLData:xmlData withSchema:SNXMLValidatorSchemaTypeXSD schemaFile:schemaURL error:&error]) {
    DebugLog(@"Failed to validate data: %@", error);
}

the class can do DTD, XSD, RelaxNG (it just wraps libxml2)