103 lines
3.1 KiB
JavaScript
103 lines
3.1 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.SyntaxWalker = void 0;
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const base_util_1 = require("../common/base_util");
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const abstract_walker_1 = require("./abstract_walker");
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const levels_1 = require("./levels");
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class SyntaxWalker extends abstract_walker_1.AbstractWalker {
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constructor(node, generator, highlighter, xml) {
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super(node, generator, highlighter, xml);
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this.node = node;
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this.generator = generator;
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this.highlighter = highlighter;
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this.levels = null;
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this.restoreState();
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}
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initLevels() {
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const levels = new levels_1.Levels();
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levels.push([this.primaryId()]);
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return levels;
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}
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up() {
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super.up();
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const parent = this.previousLevel();
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if (!parent) {
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return null;
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}
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this.levels.pop();
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return this.singletonFocus(parent);
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}
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down() {
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super.down();
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const children = this.nextLevel();
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if (children.length === 0) {
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return null;
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}
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const focus = this.singletonFocus(children[0]);
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if (focus) {
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this.levels.push(children);
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}
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return focus;
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}
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combineContentChildren(type, role, content, children) {
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switch (type) {
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case "relseq":
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case "infixop":
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case "multirel":
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return (0, base_util_1.interleaveLists)(children, content);
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case "prefixop":
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return content.concat(children);
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case "postfixop":
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return children.concat(content);
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case "matrix":
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case "vector":
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case "fenced":
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children.unshift(content[0]);
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children.push(content[1]);
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return children;
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case "cases":
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children.unshift(content[0]);
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return children;
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case "punctuated":
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if (role === "text") {
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return (0, base_util_1.interleaveLists)(children, content);
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}
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return children;
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case "appl":
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return [children[0], content[0], children[1]];
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case "root":
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return [children[1], children[0]];
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default:
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return children;
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}
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}
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left() {
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super.left();
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const index = this.levels.indexOf(this.primaryId());
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if (index === null) {
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return null;
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}
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const id = this.levels.get(index - 1);
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return id ? this.singletonFocus(id) : null;
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}
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right() {
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super.right();
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const index = this.levels.indexOf(this.primaryId());
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if (index === null) {
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return null;
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}
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const id = this.levels.get(index + 1);
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return id ? this.singletonFocus(id) : null;
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}
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findFocusOnLevel(id) {
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return this.singletonFocus(id.toString());
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}
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focusDomNodes() {
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return [this.getFocus().getDomPrimary()];
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}
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focusSemanticNodes() {
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return [this.getFocus().getSemanticPrimary()];
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}
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}
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exports.SyntaxWalker = SyntaxWalker;
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