71 lines
1.9 KiB
TypeScript
71 lines
1.9 KiB
TypeScript
/**
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* Copyright (C) 2022, Dmitriy Pleshevskiy <dmitriy@ideascup.me>
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*
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* This file is part of Paren
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*
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* Paren is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Paren is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Paren. If not, see <https://www.gnu.org/licenses/>.
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*/
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export * from "../core/node.ts";
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import {
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AnyNode,
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Attrs,
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Elem,
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ElemTagName,
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Fragment,
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FragmentNode,
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isFragment,
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TextNode,
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} from "../core/node.ts";
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import { isNotSkip, isNum, isStr, Skipable, toArr } from "../core/utils.ts";
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export function F(children: Skipable<EChild>[]): Fragment {
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return new Fragment(
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children.filter(isNotSkip).flatMap((c) =>
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normFragmentChild(normElemChild(c))
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),
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);
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}
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type EAttrs = Attrs | Attrs[];
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type ETextNode = string | number | TextNode;
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type EChild = ETextNode | Fragment | Elem;
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export function E(
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tagName: ElemTagName,
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attrs: EAttrs,
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children?: ETextNode | Skipable<EChild>[],
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): Elem {
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return new Elem(
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tagName,
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mergeAttrs(attrs ?? []),
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toArr(children ?? []).filter(isNotSkip).map(normElemChild),
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);
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}
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function mergeAttrs(attrs: EAttrs): Attrs {
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return !Array.isArray(attrs)
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? attrs
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: attrs.reduce((acc, attrs) => ({ ...acc, ...attrs }), {} as Attrs);
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}
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function normFragmentChild(node: AnyNode): FragmentNode | FragmentNode[] {
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return isFragment(node) ? node.children : node;
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}
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function normElemChild(node: EChild): AnyNode {
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return isStr(node) || isNum(node) ? new TextNode(String(node)) : node;
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}
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