How to use speech-rule-engine - 10 common examples
To help you get started, we’ve selected a few speech-rule-engine examples, based on popular ways it is used in public projects.
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mathjax / MathJax-node / lib / mj-page.js View on Github 
serverState = STATE.BUSY;
var result = {}, $$ = window.Array, HUB = MathJax.Hub;
//
// Get the math data and callback and set the content
//
var item = queue.shift();
data = item[0]; callback = item[1];
content.innerHTML = data.html; // %%% disable const preprocessor = function (data, callback) {
// setup SRE
const speechConfig = {
semantics: true,
domain: data.speakRuleset || 'mathspeak',
style: data.speakStyle || 'default',
semantic: data.semantic,
minSTree: data.minSTree,
speakText: true,
speech: 'deep'
};
if (data.speakText === false) speechConfig.speakText = false
sre.setupEngine(speechConfig);
// if MathML, enrich and continue
if (data.format === "MathML") {
data.speakText = sre.toSpeech(data.math);
data.math = sre.toEnriched(data.math).toString();
data.math = data.math.replace(/alttext="(.*?)"/,'alttext="' + data.speakText + '"');
callback(data);
} else {
// convert to MathML, enrich and continue
const newdata = {
math: data.math,
format: data.format,
mml: true
};
mathjax.typeset(newdata, function (result) {
if (result.error) throw result.error;
data.speakText = sre.toSpeech(result.mml);if (!result.mml) result.mml = result.mmlNode.outerHTML;
if (!speechConfig.speech) speechConfig.speech = 'deep';
// add semantic tree
if (speechConfig.semantic) {
result.streeJson = sre.toJson(result.mml);
const xml = sre.toSemantic(result.mml).toString();
result.streeXml = speechConfig.minSTree ? xml : sre.pprintXML(xml);
}
// return if no speakText is requested
if (!speechConfig.speakText) {
callback(result, input);
return
}
// enrich output
sre.setupEngine(speechConfig);
result.speakText = sre.toSpeech(result.mml);
if (result.svgNode) {
result.svgNode.querySelector('title').innerHTML = result.speakText;
// update serialization
// HACK add lost xlink namespaces TODO file jsdom bug
if (result.svg) result.svg = result.svgNode.outerHTML
.replace(/><([^/])/g, ">\n<$1")
.replace(/(<\/[a-z]*>)(?=<\/)/g, "$1\n")
.replace(/(<(?:use|image) [^>]*)(href=)/g, ' $1xlink:$2');
}
if (result.htmlNode) {
result.htmlNode.firstChild.setAttribute("aria-label", result.speakText);
// update serialization
if (result.html) result.html = result.htmlNode.outerHTML;
}
if (result.mmlNode) {
result.mmlNode.setAttribute("alttext", result.speakText);const preprocessor = function (data, callback) {
// setup SRE
const speechConfig = {
semantics: true,
domain: data.speakRuleset || 'mathspeak',
style: data.speakStyle || 'default',
semantic: data.semantic,
minSTree: data.minSTree,
speakText: true,
speech: 'deep'
};
if (data.speakText === false) speechConfig.speakText = false
sre.setupEngine(speechConfig);
// if MathML, enrich and continue
if (data.format === "MathML") {
data.speakText = sre.toSpeech(data.math);
data.math = sre.toEnriched(data.math).toString();
data.math = data.math.replace(/alttext="(.*?)"/,'alttext="' + data.speakText + '"');
callback(data);
} else {
// convert to MathML, enrich and continue
const newdata = {
math: data.math,
format: data.format,
mml: true
};
mathjax.typeset(newdata, function (result) {
if (result.error) throw result.error;
data.speakText = sre.toSpeech(result.mml);
data.math = sre.toEnriched(result.mml).toString();
data.math = data.math.replace(/alttext="(.*?)"/,'alttext="' + data.speakText + '"');
data.format = 'MathML';var SPEAK = function (svg) {
var jax = MathJax.Hub.getJaxFor(svg), id = jax.inputID, mml;
try {mml = jax.root.toMathML('',jax)} catch(err) {
if (!err.restart) {throw err;} // an actual error
if (!queue) {queue = MathJax.Callback.Queue()}
return queue.Push(err.restart,window.Array(SPEAK,svg));
}
jax.speech = speech.processExpression(mml);
svg.setAttribute("role","math");
svg.setAttribute("aria-labelledby",id+"-Title "+id+"-Desc");
for (var i = 0, m = svg.childNodes.length; i < m; i++)
svg.childNodes[i].setAttribute("aria-hidden",true);
var node = MathJax.HTML.Element("desc",{id:id+"-Desc"},[jax.speech]);
svg.insertBefore(node,svg.firstChild);
node = MathJax.HTML.Element("title",{id:id+"-Title"},["Equation"]);
svg.insertBefore(node,svg.firstChild);
}
for (var i = nodes.length-1; i >= 0; i--) SPEAK(nodes[i]);// setup SRE
const speechConfig = {
semantics: true,
domain: data.speakRuleset || 'mathspeak',
style: data.speakStyle || 'default',
semantic: data.semantic,
minSTree: data.minSTree,
speakText: true,
speech: 'deep'
};
if (data.speakText === false) speechConfig.speakText = false
sre.setupEngine(speechConfig);
// if MathML, enrich and continue
if (data.format === "MathML") {
data.speakText = sre.toSpeech(data.math);
data.math = sre.toEnriched(data.math).toString();
data.math = data.math.replace(/alttext="(.*?)"/,'alttext="' + data.speakText + '"');
callback(data);
} else {
// convert to MathML, enrich and continue
const newdata = {
math: data.math,
format: data.format,
mml: true
};
mathjax.typeset(newdata, function (result) {
if (result.error) throw result.error;
data.speakText = sre.toSpeech(result.mml);
data.math = sre.toEnriched(result.mml).toString();
data.math = data.math.replace(/alttext="(.*?)"/,'alttext="' + data.speakText + '"');
data.format = 'MathML';
callback(data);const postprocessor = function (speechConfig, result, input, callback) {
if (result.error) throw result.error;
if (!result.mml && !result.mmlNode) throw new Error('No MathML found. Please check the mathjax-node configuration');
if (!result.svgNode && !result.htmlNode && !result.mmlNode) throw new Error('No suitable output found. Either svgNode, htmlNode or mmlNode are required.');
if (!result.mml) result.mml = result.mmlNode.outerHTML;
if (!speechConfig.speech) speechConfig.speech = 'deep';
// add semantic tree
if (speechConfig.semantic) {
result.streeJson = sre.toJson(result.mml);
const xml = sre.toSemantic(result.mml).toString();
result.streeXml = speechConfig.minSTree ? xml : sre.pprintXML(xml);
}
// return if no speakText is requested
if (!speechConfig.speakText) {
callback(result, input);
return
}
// enrich output
sre.setupEngine(speechConfig);
result.speakText = sre.toSpeech(result.mml);
if (result.svgNode) {
result.svgNode.querySelector('title').innerHTML = result.speakText;
// update serialization
// HACK add lost xlink namespaces TODO file jsdom bug
if (result.svg) result.svg = result.svgNode.outerHTML
.replace(/><([^/])/g, ">\n<$1")
.replace(/(<\/[a-z]*>)(?=<\/)/g, "$1\n")const postprocessor = function (speechConfig, result, input, callback) {
if (result.error) throw result.error;
if (!result.mml && !result.mmlNode) throw new Error('No MathML found. Please check the mathjax-node configuration');
if (!result.svgNode && !result.htmlNode && !result.mmlNode) throw new Error('No suitable output found. Either svgNode, htmlNode or mmlNode are required.');
if (!result.mml) result.mml = result.mmlNode.outerHTML;
if (!speechConfig.speech) speechConfig.speech = 'deep';
// add semantic tree
if (speechConfig.semantic) {
result.streeJson = sre.toJson(result.mml);
const xml = sre.toSemantic(result.mml).toString();
result.streeXml = speechConfig.minSTree ? xml : sre.pprintXML(xml);
}
// return if no speakText is requested
if (!speechConfig.speakText) {
callback(result, input);
return
}
// enrich output
sre.setupEngine(speechConfig);
result.speakText = sre.toSpeech(result.mml);
if (result.svgNode) {
result.svgNode.querySelector('title').innerHTML = result.speakText;
// update serialization
// HACK add lost xlink namespaces TODO file jsdom bug
if (result.svg) result.svg = result.svgNode.outerHTMLconst postprocessor = function (speechConfig, result, input, callback) {
if (result.error) throw result.error;
if (!result.mml && !result.mmlNode) throw new Error('No MathML found. Please check the mathjax-node configuration');
if (!result.svgNode && !result.htmlNode && !result.mmlNode) throw new Error('No suitable output found. Either svgNode, htmlNode or mmlNode are required.');
if (!result.mml) result.mml = result.mmlNode.outerHTML;
if (!speechConfig.speech) speechConfig.speech = 'deep';
// add semantic tree
if (speechConfig.semantic) {
result.streeJson = sre.toJson(result.mml);
const xml = sre.toSemantic(result.mml).toString();
result.streeXml = speechConfig.minSTree ? xml : sre.pprintXML(xml);
}
// return if no speakText is requested
if (!speechConfig.speakText) {
callback(result, input);
return
}
// enrich output
sre.setupEngine(speechConfig);
result.speakText = sre.toSpeech(result.mml);
if (result.svgNode) {
result.svgNode.querySelector('title').innerHTML = result.speakText;
// update serialization
// HACK add lost xlink namespaces TODO file jsdom bug
if (result.svg) result.svg = result.svgNode.outerHTML
.replace(/><([^/])/g, ">\n<$1")mathjax.typeset(newdata, function (result) {
if (result.error) throw result.error;
data.speakText = sre.toSpeech(result.mml);
data.math = sre.toEnriched(result.mml).toString();
data.math = data.math.replace(/alttext="(.*?)"/,'alttext="' + data.speakText + '"');
data.format = 'MathML';
callback(data);
});
}speech-rule-engine
A standalone speech rule engine for XML structures, based on the original engine from ChromeVox.
