SSMLVerifier

SSMLVerifier will verify that a given input is valid SSML. It is based of a javascript implementation found here: https://github.com/gsdriver/ssml-check

WIP

This is a WIP project. Here is the current state of the implementation:

Common tags:

• audio
• break
• emphasis
• p
• prosody
• s
• say-as
• speak
• sub

Amazon tags:

• amazon:domain
• amazon:effect
• amazon:emotion
• lang
• phoneme
• voice
• w

Google tags:

• par
• seq
• media
• desc

Basic usage

The basic usage looks like this:

const string testSsml = "<speak>Hello <break strength='weak' time='1s'/> World!</speak>";
var verifier = new Verifer();
var errors = verifier.Verify(testSsml);
if(errors.Count() == 0)
{
   Console.WriteLine("SSML is valid!");
}
else
{
   foreach(var error in errors)
   {
      Console.WriteLine(error.Error);
   }
}

But I'd recommend you to use the second parameter aswell, which sets the target platform.

verifier.Verify(testSsml, SsmlPlatform.Amazon);
// or ...
verifier.Verify(testSsml, SsmlPlatform.Google);

This way you are able to use platform specific tags like Amazon's lang-tag

// lang is an amazon-specific tag
const string testSsml = "<speak>Hello <lang xml:lang='de-DE'>Welt</lang></speak>";
var verifier = new Verifer();
// this will fail, because lang is a Amazon-specific tag
var result = verifier.Verify(testSsml, SsmlPlatform.Google);