speech-rule-engine
Version:
A standalone speech rule engine for XML structures, based on the original engine from ChromeVox.
122 lines (121 loc) • 3.29 kB
JavaScript
import { DynamicCstr, DynamicProperties } from '../rule_engine/dynamic_cstr.js';
export const PREFERENCES = new DynamicProperties({
AbsoluteValue: ['Auto', 'AbsEnd', 'Cardinality', 'Determinant'],
Bar: ['Auto', 'Conjugate'],
Caps: ['Auto', 'SayCaps'],
CombinationPermutation: ['Auto', 'ChoosePermute'],
Currency: ['Auto', 'Position', 'Prefix'],
Ellipses: ['Auto', 'AndSoOn'],
Enclosed: ['Auto', 'EndEnclose'],
Exponent: [
'Auto',
'AfterPower',
'Ordinal',
'OrdinalPower',
'Exponent'
],
Fraction: [
'Auto',
'EndFrac',
'FracOver',
'General',
'GeneralEndFrac',
'Ordinal',
'Over',
'OverEndFrac',
'Per'
],
Functions: [
'Auto',
'None',
'Reciprocal'
],
ImpliedTimes: ['Auto', 'MoreImpliedTimes', 'None'],
Log: ['Auto', 'LnAsNaturalLog'],
Matrix: [
'Auto',
'Combinatoric',
'EndMatrix',
'EndVector',
'SilentColNum',
'SpeakColNum',
'Vector'
],
MultiLineLabel: [
'Auto',
'Case',
'Constraint',
'Equation',
'Line',
'None',
'Row',
'Step'
],
MultiLineOverview: ['Auto', 'None'],
MultiLinePausesBetweenColumns: ['Auto', 'Long', 'Short'],
MultsymbolDot: ['Auto', 'Dot'],
MultsymbolX: ['Auto', 'By', 'Cross'],
Paren: [
'Auto',
'CoordPoint',
'Interval',
'Silent',
'Speak',
'SpeakNestingLevel'
],
Prime: ['Auto', 'Angle', 'Length'],
Roots: ['Auto', 'PosNegSqRoot', 'PosNegSqRootEnd', 'RootEnd'],
SetMemberSymbol: ['Auto', 'Belongs', 'Element', 'Member', 'In'],
Sets: ['Auto', 'SilentBracket', 'woAll'],
TriangleSymbol: ['Auto', 'Delta'],
Trig: [
'Auto',
'ArcTrig',
'TrigInverse',
'Reciprocal'
],
VerticalLine: ['Auto', 'Divides', 'Given', 'SuchThat']
});
const AUTO = 'Auto';
export function fromPreference(pref) {
const pairs = pref.split(':');
const preferences = {};
const properties = PREFERENCES.getProperties();
const validKeys = Object.keys(properties);
for (let i = 0, key; (key = pairs[i]); i++) {
const pair = key.split('_');
if (validKeys.indexOf(pair[0]) === -1) {
continue;
}
const value = pair[1];
if (value &&
value !== AUTO &&
properties[pair[0]].indexOf(value) !== -1) {
preferences[pair[0]] = pair[1];
}
}
return preferences;
}
export function toPreference(pref) {
const keys = Object.keys(pref);
const str = [];
for (let i = 0; i < keys.length; i++) {
str.push(keys[i] + '_' + pref[keys[i]]);
}
return str.length ? str.join(':') : DynamicCstr.DEFAULT_VALUE;
}
export function findPreference(prefs, kind) {
if (prefs === 'default') {
return AUTO;
}
const parsed = fromPreference(prefs);
return parsed[kind] || AUTO;
}
export function addPreference(prefs, kind, value) {
if (prefs === 'default') {
return kind + '_' + value;
}
const parsed = fromPreference(prefs);
parsed[kind] = value;
return toPreference(parsed);
}