@tricoteuses/arbre-de-la-loi/lib/hast_from_xast.mjs

Generate ASTs from the French bills & laws; manipulate & export them to Markdown, etc.

import { HastType } from "./hast";
import { assertNeverXastNode, XastType } from "./xast";
export default function hastFromXast(xastNode) {
    switch (xastNode.type) {
        case XastType.Cdata:
        case XastType.Comment:
        case XastType.Instruction:
            return {
                data: xastNode.data,
                position: xastNode.position,
                type: HastType.Comment,
                value: xastNode.value,
            };
        case XastType.Doctype:
            return {
                data: xastNode.data,
                name: xastNode.name,
                position: xastNode.position,
                public: xastNode.public,
                system: xastNode.system,
                type: HastType.Doctype,
            };
        case XastType.Root:
            return {
                children: xastNode.children.map(hastFromXast),
                data: xastNode.data,
                position: xastNode.position,
                type: HastType.Root,
            };
        case XastType.Text:
            return {
                data: xastNode.data,
                position: xastNode.position,
                type: HastType.Text,
                value: xastNode.value,
            };
        case XastType.Element:
            return {
                children: xastNode.children.map(hastFromXast),
                data: xastNode.data,
                position: xastNode.position,
                properties: xastNode.attributes,
                tagName: xastNode.name,
                type: HastType.Element,
            };
        default:
            assertNeverXastNode(xastNode);
    }
}