speech-rule-engine
Version:
A standalone speech rule engine for XML structures, based on the original engine from ChromeVox.
364 lines • 16.5 kB
JavaScript
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.SemanticMathml = void 0;
const DomUtil = __importStar(require("../common/dom_util.js"));
const semantic_meaning_js_1 = require("./semantic_meaning.js");
const semantic_attr_js_1 = require("./semantic_attr.js");
const semantic_parser_js_1 = require("./semantic_parser.js");
const SemanticPred = __importStar(require("./semantic_pred.js"));
const semantic_processor_js_1 = require("./semantic_processor.js");
const SemanticUtil = __importStar(require("./semantic_util.js"));
const semantic_util_js_1 = require("./semantic_util.js");
const semantic_heuristic_factory_js_1 = require("./semantic_heuristic_factory.js");
class SemanticMathml extends semantic_parser_js_1.SemanticAbstractParser {
static getAttribute_(node, attr, def) {
if (!node.hasAttribute(attr)) {
return def;
}
const value = node.getAttribute(attr);
if (value.match(/^\s*$/)) {
return null;
}
return value;
}
constructor(options) {
super('MathML');
this.options = options;
semantic_heuristic_factory_js_1.SemanticHeuristics.options = options;
this.parseMap_ = new Map([
[semantic_util_js_1.MMLTAGS.SEMANTICS, this.semantics_.bind(this)],
[semantic_util_js_1.MMLTAGS.MATH, this.rows_.bind(this)],
[semantic_util_js_1.MMLTAGS.MROW, this.rows_.bind(this)],
[semantic_util_js_1.MMLTAGS.MPADDED, this.rows_.bind(this)],
[semantic_util_js_1.MMLTAGS.MSTYLE, this.rows_.bind(this)],
[semantic_util_js_1.MMLTAGS.MFRAC, this.fraction_.bind(this)],
[semantic_util_js_1.MMLTAGS.MSUB, this.limits_.bind(this)],
[semantic_util_js_1.MMLTAGS.MSUP, this.limits_.bind(this)],
[semantic_util_js_1.MMLTAGS.MSUBSUP, this.limits_.bind(this)],
[semantic_util_js_1.MMLTAGS.MOVER, this.limits_.bind(this)],
[semantic_util_js_1.MMLTAGS.MUNDER, this.limits_.bind(this)],
[semantic_util_js_1.MMLTAGS.MUNDEROVER, this.limits_.bind(this)],
[semantic_util_js_1.MMLTAGS.MROOT, this.root_.bind(this)],
[semantic_util_js_1.MMLTAGS.MSQRT, this.sqrt_.bind(this)],
[semantic_util_js_1.MMLTAGS.MTABLE, this.table_.bind(this)],
[semantic_util_js_1.MMLTAGS.MLABELEDTR, this.tableLabeledRow_.bind(this)],
[semantic_util_js_1.MMLTAGS.MTR, this.tableRow_.bind(this)],
[semantic_util_js_1.MMLTAGS.MTD, this.tableCell_.bind(this)],
[semantic_util_js_1.MMLTAGS.MS, this.text_.bind(this)],
[semantic_util_js_1.MMLTAGS.MTEXT, this.text_.bind(this)],
[semantic_util_js_1.MMLTAGS.MSPACE, this.space_.bind(this)],
[semantic_util_js_1.MMLTAGS.ANNOTATIONXML, this.text_.bind(this)],
[semantic_util_js_1.MMLTAGS.MI, this.identifier_.bind(this)],
[semantic_util_js_1.MMLTAGS.MN, this.number_.bind(this)],
[semantic_util_js_1.MMLTAGS.MO, this.operator_.bind(this)],
[semantic_util_js_1.MMLTAGS.MFENCED, this.fenced_.bind(this)],
[semantic_util_js_1.MMLTAGS.MENCLOSE, this.enclosed_.bind(this)],
[semantic_util_js_1.MMLTAGS.MMULTISCRIPTS, this.multiscripts_.bind(this)],
[semantic_util_js_1.MMLTAGS.ANNOTATION, this.empty_.bind(this)],
[semantic_util_js_1.MMLTAGS.NONE, this.empty_.bind(this)],
[semantic_util_js_1.MMLTAGS.MACTION, this.action_.bind(this)]
]);
const meaning = {
type: semantic_meaning_js_1.SemanticType.IDENTIFIER,
role: semantic_meaning_js_1.SemanticRole.NUMBERSET,
font: semantic_meaning_js_1.SemanticFont.DOUBLESTRUCK
};
[
'C',
'H',
'N',
'P',
'Q',
'R',
'Z',
'ℂ',
'ℍ',
'ℕ',
'ℙ',
'ℚ',
'ℝ',
'ℤ'
].forEach(((x) => this.getFactory().defaultMap.set(x, meaning)).bind(this));
}
parse(mml) {
semantic_processor_js_1.SemanticProcessor.getInstance().setNodeFactory(this.getFactory());
const children = DomUtil.toArray(mml.childNodes);
const tag = DomUtil.tagName(mml);
const func = this.parseMap_.get(tag);
const newNode = (func ? func : this.dummy_.bind(this))(mml, children);
SemanticUtil.addAttributes(newNode, mml);
if ([
semantic_util_js_1.MMLTAGS.MATH,
semantic_util_js_1.MMLTAGS.MROW,
semantic_util_js_1.MMLTAGS.MPADDED,
semantic_util_js_1.MMLTAGS.MSTYLE,
semantic_util_js_1.MMLTAGS.SEMANTICS,
semantic_util_js_1.MMLTAGS.MACTION
].indexOf(tag) !== -1) {
return newNode;
}
newNode.mathml.unshift(mml);
newNode.mathmlTree = mml;
return newNode;
}
semantics_(_node, children) {
return children.length
? this.parse(children[0])
: this.getFactory().makeEmptyNode();
}
rows_(node, children) {
const semantics = node.getAttribute('semantics');
if (semantics && semantics.match('bspr_')) {
return semantic_processor_js_1.SemanticProcessor.proof(node, semantics, this.parseList.bind(this));
}
children = SemanticUtil.purgeNodes(children);
let newNode;
if (children.length === 1) {
newNode = this.parse(children[0]);
if (newNode.type === semantic_meaning_js_1.SemanticType.EMPTY && !newNode.mathmlTree) {
newNode.mathmlTree = node;
}
}
else {
const snode = semantic_heuristic_factory_js_1.SemanticHeuristics.run('function_from_identifiers', node);
newNode =
snode && snode !== node
? snode
: semantic_processor_js_1.SemanticProcessor.getInstance().row(this.parseList(children));
}
newNode.mathml.unshift(node);
return newNode;
}
fraction_(node, children) {
if (!children.length) {
return this.getFactory().makeEmptyNode();
}
const upper = this.parse(children[0]);
const lower = children[1]
? this.parse(children[1])
: this.getFactory().makeEmptyNode();
const sem = semantic_processor_js_1.SemanticProcessor.getInstance().fractionLikeNode(upper, lower, node.getAttribute('linethickness'), node.getAttribute('bevelled') === 'true');
return sem;
}
limits_(node, children) {
return semantic_processor_js_1.SemanticProcessor.getInstance().limitNode(DomUtil.tagName(node), this.parseList(children));
}
root_(node, children) {
if (!children[1]) {
return this.sqrt_(node, children);
}
return this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.ROOT, [this.parse(children[1]), this.parse(children[0])], []);
}
sqrt_(_node, children) {
const semNodes = this.parseList(SemanticUtil.purgeNodes(children));
return this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.SQRT, [semantic_processor_js_1.SemanticProcessor.getInstance().row(semNodes)], []);
}
table_(node, children) {
const semantics = node.getAttribute('semantics');
if (semantics && semantics.match('bspr_')) {
return semantic_processor_js_1.SemanticProcessor.proof(node, semantics, this.parseList.bind(this));
}
const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.TABLE, this.parseList(children), []);
newNode.mathmlTree = node;
return semantic_processor_js_1.SemanticProcessor.tableToMultiline(newNode);
}
tableRow_(_node, children) {
const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.ROW, this.parseList(children), []);
newNode.role = semantic_meaning_js_1.SemanticRole.TABLE;
return newNode;
}
tableLabeledRow_(node, children) {
var _a;
if (!children.length) {
return this.tableRow_(node, children);
}
const label = this.parse(children[0]);
label.role = semantic_meaning_js_1.SemanticRole.LABEL;
if (((_a = label.childNodes[0]) === null || _a === void 0 ? void 0 : _a.type) === semantic_meaning_js_1.SemanticType.TEXT) {
label.childNodes[0].role = semantic_meaning_js_1.SemanticRole.LABEL;
}
const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.ROW, this.parseList(children.slice(1)), [label]);
newNode.role = semantic_meaning_js_1.SemanticRole.TABLE;
return newNode;
}
tableCell_(_node, children) {
const semNodes = this.parseList(SemanticUtil.purgeNodes(children));
let childNodes;
if (!semNodes.length) {
childNodes = [];
}
else if (semNodes.length === 1 &&
SemanticPred.isType(semNodes[0], semantic_meaning_js_1.SemanticType.EMPTY)) {
childNodes = semNodes;
}
else {
childNodes = [semantic_processor_js_1.SemanticProcessor.getInstance().row(semNodes)];
}
const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.CELL, childNodes, []);
newNode.role = semantic_meaning_js_1.SemanticRole.TABLE;
return newNode;
}
space_(node, children) {
const width = node.getAttribute('width');
const match = width && width.match(/[a-z]*$/);
if (!match) {
return this.empty_(node, children);
}
const sizes = {
cm: 0.4,
pc: 0.5,
em: 0.5,
ex: 1,
in: 0.15,
pt: 5,
mm: 5
};
const unit = match[0];
const measure = parseFloat(width.slice(0, match.index));
const size = sizes[unit];
if (!size || isNaN(measure) || measure < size) {
return this.empty_(node, children);
}
const newNode = this.getFactory().makeUnprocessed(node);
return semantic_processor_js_1.SemanticProcessor.getInstance().text(newNode, DomUtil.tagName(node));
}
text_(node, children) {
const newNode = this.leaf_(node, children);
if (!node.textContent) {
return newNode;
}
newNode.updateContent(node.textContent, true);
return semantic_processor_js_1.SemanticProcessor.getInstance().text(newNode, DomUtil.tagName(node));
}
identifier_(node, children) {
const newNode = this.leaf_(node, children);
return semantic_processor_js_1.SemanticProcessor.getInstance().identifierNode(newNode, semantic_processor_js_1.SemanticProcessor.getInstance().font(node.getAttribute('mathvariant')), node.getAttribute('class'));
}
number_(node, children) {
const newNode = this.leaf_(node, children);
semantic_processor_js_1.SemanticProcessor.number(newNode);
return newNode;
}
operator_(node, children) {
const newNode = this.leaf_(node, children);
semantic_processor_js_1.SemanticProcessor.getInstance().operatorNode(newNode);
return newNode;
}
fenced_(node, children) {
const semNodes = this.parseList(SemanticUtil.purgeNodes(children));
const sepValue = SemanticMathml.getAttribute_(node, 'separators', ',');
const open = SemanticMathml.getAttribute_(node, 'open', '(');
const close = SemanticMathml.getAttribute_(node, 'close', ')');
const newNode = semantic_processor_js_1.SemanticProcessor.getInstance().mfenced(open, close, sepValue, semNodes);
const nodes = semantic_processor_js_1.SemanticProcessor.getInstance().tablesInRow([newNode]);
return nodes[0];
}
enclosed_(node, children) {
const semNodes = this.parseList(SemanticUtil.purgeNodes(children));
const newNode = this.getFactory().makeBranchNode(semantic_meaning_js_1.SemanticType.ENCLOSE, [semantic_processor_js_1.SemanticProcessor.getInstance().row(semNodes)], []);
newNode.role =
node.getAttribute('notation') || semantic_meaning_js_1.SemanticRole.UNKNOWN;
return newNode;
}
multiscripts_(_node, children) {
if (!children.length) {
return this.getFactory().makeEmptyNode();
}
const base = this.parse(children.shift());
if (!children.length) {
return base;
}
const lsup = [];
const lsub = [];
const rsup = [];
const rsub = [];
let prescripts = false;
let scriptcount = 0;
for (let i = 0, child; (child = children[i]); i++) {
if (DomUtil.tagName(child) === semantic_util_js_1.MMLTAGS.MPRESCRIPTS) {
prescripts = true;
scriptcount = 0;
continue;
}
prescripts
? scriptcount & 1
? lsup.push(child)
: lsub.push(child)
: scriptcount & 1
? rsup.push(child)
: rsub.push(child);
scriptcount++;
}
if (!SemanticUtil.purgeNodes(lsup).length &&
!SemanticUtil.purgeNodes(lsub).length) {
return semantic_processor_js_1.SemanticProcessor.getInstance().pseudoTensor(base, this.parseList(rsub), this.parseList(rsup));
}
return semantic_processor_js_1.SemanticProcessor.getInstance().tensor(base, this.parseList(lsub), this.parseList(lsup), this.parseList(rsub), this.parseList(rsup));
}
empty_(_node, _children) {
return this.getFactory().makeEmptyNode();
}
action_(node, children) {
const selection = children[node.hasAttribute('selection')
? parseInt(node.getAttribute('selection'), 10) - 1
: 0];
const stree = this.parse(selection);
stree.mathmlTree = selection;
return stree;
}
dummy_(node, _children) {
const unknown = this.getFactory().makeUnprocessed(node);
unknown.role = node.tagName;
unknown.textContent = node.textContent;
return unknown;
}
leaf_(mml, children) {
if (children.length === 1 &&
children[0].nodeType !== DomUtil.NodeType.TEXT_NODE) {
const node = this.getFactory().makeUnprocessed(mml);
node.role = children[0].tagName;
SemanticUtil.addAttributes(node, children[0]);
return node;
}
const node = this.getFactory().makeLeafNode(mml.textContent, semantic_processor_js_1.SemanticProcessor.getInstance().font(mml.getAttribute('mathvariant')));
if (mml.hasAttribute('data-latex')) {
semantic_attr_js_1.SemanticMap.LatexCommands.set(mml.getAttribute('data-latex'), mml.textContent);
}
return node;
}
}
exports.SemanticMathml = SemanticMathml;
//# sourceMappingURL=semantic_mathml.js.map