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- import { Span } from '../audio/span.js';
- import * as DomUtil from '../common/dom_util.js';
- import { Engine } from '../common/engine.js';
- import * as XpathUtil from '../common/xpath_util.js';
- import { LOCALE } from '../l10n/locale.js';
- import { vulgarFractionSmall } from '../l10n/transformers.js';
- import { Grammar } from '../rule_engine/grammar.js';
- import * as StoreUtil from '../rule_engine/store_util.js';
- import { register } from '../semantic_tree/semantic_annotations.js';
- import { SemanticAnnotator } from '../semantic_tree/semantic_annotator.js';
- import { isMatchingFence } from '../semantic_tree/semantic_attr.js';
- import { SemanticRole, SemanticType } from '../semantic_tree/semantic_meaning.js';
- export function nodeCounter(nodes, context) {
- const split = context.split('-');
- const func = StoreUtil.nodeCounter(nodes, split[0] || '');
- const sep = split[1] || '';
- const init = split[2] || '';
- let first = true;
- return function () {
- const result = func();
- if (first) {
- first = false;
- return init + result + sep;
- }
- else {
- return result + sep;
- }
- };
- }
- function isSimpleExpression(node) {
- return (isSimpleNumber_(node) ||
- isSimpleLetters_(node) ||
- isSimpleDegree_(node) ||
- isSimpleNegative_(node) ||
- isSimpleFunction_(node));
- }
- function isSimpleFunction_(node) {
- return (node.type === SemanticType.APPL &&
- (node.childNodes[0].role === SemanticRole.PREFIXFUNC ||
- node.childNodes[0].role === SemanticRole.SIMPLEFUNC) &&
- (isSimple_(node.childNodes[1]) ||
- (node.childNodes[1].type === SemanticType.FENCED &&
- isSimple_(node.childNodes[1].childNodes[0]))));
- }
- function isSimpleNegative_(node) {
- return (node.type === SemanticType.PREFIXOP &&
- node.role === SemanticRole.NEGATIVE &&
- isSimple_(node.childNodes[0]) &&
- node.childNodes[0].type !== SemanticType.PREFIXOP &&
- node.childNodes[0].type !== SemanticType.APPL &&
- node.childNodes[0].type !== SemanticType.PUNCTUATED);
- }
- function isSimpleDegree_(node) {
- return (node.type === SemanticType.PUNCTUATED &&
- node.role === SemanticRole.ENDPUNCT &&
- node.childNodes.length === 2 &&
- node.childNodes[1].role === SemanticRole.DEGREE &&
- (isLetter_(node.childNodes[0]) ||
- isNumber_(node.childNodes[0]) ||
- (node.childNodes[0].type === SemanticType.PREFIXOP &&
- node.childNodes[0].role === SemanticRole.NEGATIVE &&
- (isLetter_(node.childNodes[0].childNodes[0]) ||
- isNumber_(node.childNodes[0].childNodes[0])))));
- }
- function isSimpleLetters_(node) {
- return (isLetter_(node) ||
- (node.type === SemanticType.INFIXOP &&
- node.role === SemanticRole.IMPLICIT &&
- ((node.childNodes.length === 2 &&
- (isLetter_(node.childNodes[0]) ||
- isSimpleNumber_(node.childNodes[0])) &&
- isLetter_(node.childNodes[1])) ||
- (node.childNodes.length === 3 &&
- isSimpleNumber_(node.childNodes[0]) &&
- isLetter_(node.childNodes[1]) &&
- isLetter_(node.childNodes[2])))));
- }
- function isSimple_(node) {
- return node.hasAnnotation('clearspeak', 'simple');
- }
- function isLetter_(node) {
- return (node.type === SemanticType.IDENTIFIER &&
- (node.role === SemanticRole.LATINLETTER ||
- node.role === SemanticRole.GREEKLETTER ||
- node.role === SemanticRole.OTHERLETTER ||
- node.role === SemanticRole.SIMPLEFUNC));
- }
- function isNumber_(node) {
- return (node.type === SemanticType.NUMBER &&
- (node.role === SemanticRole.INTEGER || node.role === SemanticRole.FLOAT));
- }
- function isSimpleNumber_(node) {
- return isNumber_(node) || isSimpleFraction_(node);
- }
- function isSimpleFraction_(node) {
- if (hasPreference('Fraction_Over') || hasPreference('Fraction_FracOver')) {
- return false;
- }
- if (node.type !== SemanticType.FRACTION ||
- node.role !== SemanticRole.VULGAR) {
- return false;
- }
- if (hasPreference('Fraction_Ordinal')) {
- return true;
- }
- const enumerator = parseInt(node.childNodes[0].textContent, 10);
- const denominator = parseInt(node.childNodes[1].textContent, 10);
- return (enumerator > 0 && enumerator < 20 && denominator > 0 && denominator < 11);
- }
- function hasPreference(pref) {
- return Engine.getInstance().style === pref;
- }
- register(new SemanticAnnotator('clearspeak', 'simple', function (node) {
- return isSimpleExpression(node) ? 'simple' : '';
- }));
- function simpleNode(node) {
- if (!node.hasAttribute('annotation')) {
- return false;
- }
- const annotation = node.getAttribute('annotation');
- return !!/clearspeak:simple$|clearspeak:simple;/.exec(annotation);
- }
- function simpleCell_(node) {
- if (simpleNode(node)) {
- return true;
- }
- if (node.tagName !== SemanticType.SUBSCRIPT) {
- return false;
- }
- const children = node.childNodes[0].childNodes;
- const index = children[1];
- return (children[0].tagName === SemanticType.IDENTIFIER &&
- (isInteger_(index) ||
- (index.tagName === SemanticType.INFIXOP &&
- index.hasAttribute('role') &&
- index.getAttribute('role') === SemanticRole.IMPLICIT &&
- allIndices_(index))));
- }
- function isInteger_(node) {
- return (node.tagName === SemanticType.NUMBER &&
- node.hasAttribute('role') &&
- node.getAttribute('role') === SemanticRole.INTEGER);
- }
- function allIndices_(node) {
- const nodes = XpathUtil.evalXPath('children/*', node);
- return nodes.every((x) => isInteger_(x) || x.tagName === SemanticType.IDENTIFIER);
- }
- export function allCellsSimple(node) {
- const xpath = node.tagName === SemanticType.MATRIX
- ? 'children/row/children/cell/children/*'
- : 'children/line/children/*';
- const nodes = XpathUtil.evalXPath(xpath, node);
- const result = nodes.every(simpleCell_);
- return result ? [node] : [];
- }
- export function isSmallVulgarFraction(node) {
- return vulgarFractionSmall(node, 20, 11) ? [node] : [];
- }
- function isUnitExpression(node) {
- return ((node.type === SemanticType.TEXT && node.role !== SemanticRole.LABEL) ||
- (node.type === SemanticType.PUNCTUATED &&
- node.role === SemanticRole.TEXT &&
- isNumber_(node.childNodes[0]) &&
- allTextLastContent_(node.childNodes.slice(1))) ||
- (node.type === SemanticType.IDENTIFIER &&
- node.role === SemanticRole.UNIT) ||
- (node.type === SemanticType.INFIXOP &&
- (node.role === SemanticRole.IMPLICIT || node.role === SemanticRole.UNIT)));
- }
- function allTextLastContent_(nodes) {
- for (let i = 0; i < nodes.length - 1; i++) {
- if (!(nodes[i].type === SemanticType.TEXT && nodes[i].textContent === '')) {
- return false;
- }
- }
- return nodes[nodes.length - 1].type === SemanticType.TEXT;
- }
- register(new SemanticAnnotator('clearspeak', 'unit', function (node) {
- return isUnitExpression(node) ? 'unit' : '';
- }));
- export function ordinalExponent(node) {
- const num = parseInt(node.textContent, 10);
- return [
- Span.stringEmpty(isNaN(num)
- ? node.textContent
- : num > 10
- ? LOCALE.NUMBERS.numericOrdinal(num)
- : LOCALE.NUMBERS.wordOrdinal(num))
- ];
- }
- let NESTING_DEPTH = null;
- export function nestingDepth(node) {
- let count = 0;
- const fence = node.textContent;
- const index = node.getAttribute('role') === 'open' ? 0 : 1;
- let parent = node.parentNode;
- while (parent) {
- if (parent.tagName === SemanticType.FENCED &&
- parent.childNodes[0].childNodes[index].textContent === fence) {
- count++;
- }
- parent = parent.parentNode;
- }
- NESTING_DEPTH = count > 1 ? LOCALE.NUMBERS.wordOrdinal(count) : '';
- return [Span.stringEmpty(NESTING_DEPTH)];
- }
- export function matchingFences(node) {
- const sibling = node.previousSibling;
- let left, right;
- if (sibling) {
- left = sibling;
- right = node;
- }
- else {
- left = node;
- right = node.nextSibling;
- }
- if (!right) {
- return [];
- }
- return isMatchingFence(left.textContent, right.textContent) ? [node] : [];
- }
- function insertNesting(text, correction) {
- if (!correction || !text) {
- return text;
- }
- const start = text.match(/^(open|close) /);
- if (!start) {
- return correction + ' ' + text;
- }
- return start[0] + correction + ' ' + text.substring(start[0].length);
- }
- Grammar.getInstance().setCorrection('insertNesting', insertNesting);
- export function fencedArguments(node) {
- const content = DomUtil.toArray(node.parentNode.childNodes);
- const children = XpathUtil.evalXPath('../../children/*', node);
- const index = content.indexOf(node);
- return fencedFactor_(children[index]) || fencedFactor_(children[index + 1])
- ? [node]
- : [];
- }
- export function simpleArguments(node) {
- const content = DomUtil.toArray(node.parentNode.childNodes);
- const children = XpathUtil.evalXPath('../../children/*', node);
- const index = content.indexOf(node);
- return simpleFactor_(children[index]) &&
- children[index + 1] &&
- (simpleFactor_(children[index + 1]) ||
- children[index + 1].tagName === SemanticType.ROOT ||
- children[index + 1].tagName === SemanticType.SQRT ||
- (children[index + 1].tagName === SemanticType.SUPERSCRIPT &&
- children[index + 1].childNodes[0].childNodes[0] &&
- (children[index + 1].childNodes[0].childNodes[0]
- .tagName === SemanticType.NUMBER ||
- children[index + 1].childNodes[0].childNodes[0]
- .tagName === SemanticType.IDENTIFIER) &&
- (children[index + 1].childNodes[0].childNodes[1].textContent === '2' ||
- children[index + 1].childNodes[0].childNodes[1].textContent === '3')))
- ? [node]
- : [];
- }
- function simpleFactor_(node) {
- return (!!node &&
- (node.tagName === SemanticType.NUMBER ||
- node.tagName === SemanticType.IDENTIFIER ||
- node.tagName === SemanticType.FUNCTION ||
- node.tagName === SemanticType.APPL ||
- node.tagName === SemanticType.FRACTION));
- }
- function fencedFactor_(node) {
- return (node &&
- (node.tagName === SemanticType.FENCED ||
- (node.hasAttribute('role') &&
- node.getAttribute('role') === SemanticRole.LEFTRIGHT) ||
- layoutFactor_(node)));
- }
- function layoutFactor_(node) {
- return (!!node &&
- (node.tagName === SemanticType.MATRIX ||
- node.tagName === SemanticType.VECTOR));
- }
- export function wordOrdinal(node) {
- return [
- Span.stringEmpty(LOCALE.NUMBERS.wordOrdinal(parseInt(node.textContent, 10)))
- ];
- }
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