a471e4b783
* Disable Nyaize in quote * mfmを文字列に戻す、nyaizeにmfmを使用 * Revert "Disable Nyaize in quote" This reverts commit 1b238905a5535267d32d7e1aec8afd8bb07b0619. * refactor * use return type as string
112 lines
2.7 KiB
TypeScript
112 lines
2.7 KiB
TypeScript
import { MfmForest, MfmTree } from './prelude';
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import { nyaize } from '../misc/nyaize';
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export type RestoreOptions = {
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doNyaize?: boolean;
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};
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export function toString(tokens: MfmForest | null, opts?: RestoreOptions): string {
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if (tokens === null) return '';
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function appendChildren(children: MfmForest, opts?: RestoreOptions): string {
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return children.map(t => handlers[t.node.type](t, opts)).join('');
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}
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const handlers: { [key: string]: (token: MfmTree, opts?: RestoreOptions) => string } = {
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bold(token, opts) {
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return `**${appendChildren(token.children, opts)}**`;
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},
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big(token, opts) {
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return `***${appendChildren(token.children, opts)}***`;
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},
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small(token, opts) {
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return `<small>${appendChildren(token.children, opts)}</small>`;
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},
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strike(token, opts) {
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return `~~${appendChildren(token.children, opts)}~~`;
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},
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italic(token, opts) {
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return `<i>${appendChildren(token.children, opts)}</i>`;
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},
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motion(token, opts) {
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return `<motion>${appendChildren(token.children, opts)}</motion>`;
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},
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spin(token, opts) {
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return `<spin>${appendChildren(token.children, opts)}</spin>`;
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},
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jump(token, opts) {
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return `<jump>${appendChildren(token.children, opts)}</jump>`;
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},
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flip(token, opts) {
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return `<flip>${appendChildren(token.children, opts)}</flip>`;
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},
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blockCode(token) {
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return `\`\`\`${token.node.props.lang || ''}\n${token.node.props.code}\n\`\`\`\n`;
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},
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center(token, opts) {
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return `<center>${appendChildren(token.children, opts)}</center>`;
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},
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emoji(token) {
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return (token.node.props.emoji ? token.node.props.emoji : `:${token.node.props.name}:`);
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},
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hashtag(token) {
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return `#${token.node.props.hashtag}`;
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},
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inlineCode(token) {
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return `\`${token.node.props.code}\``;
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},
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mathInline(token) {
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return `\\(${token.node.props.formula}\\)`;
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},
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mathBlock(token) {
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return `\\[${token.node.props.formula}\\]`;
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},
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link(token, opts) {
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return `[${appendChildren(token.children, opts)}](${token.node.props.url})`;
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},
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mention(token) {
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return token.node.props.canonical;
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},
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quote(token) {
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return `${appendChildren(token.children, {doNyaize: false}).replace(/^/gm,'>').trim()}\n`;
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},
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title(token, opts) {
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return `[${appendChildren(token.children, opts)}]\n`;
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},
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text(token, opts) {
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return (opts && opts.doNyaize) ? nyaize(token.node.props.text) : token.node.props.text;
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},
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url(token) {
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return `<${token.node.props.url}>`;
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},
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search(token, opts) {
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const query = token.node.props.query;
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return `${(opts && opts.doNyaize ? nyaize(query) : query)} [search]\n`;
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}
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};
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return appendChildren(tokens, { doNyaize: (opts && opts.doNyaize) || false }).trim();
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}
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