/** * @create-markdown/preview v0.1.0 * Framework-agnostic HTML rendering for @create-markdown * * Author: Val Alexander * License: MIT * npm: https://www.npmjs.com/package/@create-markdown/preview * GitHub: https://github.com/BunsDev/create-markdown/tree/main/packages/preview * * Vendored from esm.sh to avoid third-party CDN supply-chain risk. */ var I = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", H = 8; function R(e = H) { let n = "", t = I.length; for (let r = 0; r < e; r++) n += I.charAt(Math.floor(Math.random() * t)); return n; } function z(e) { return { text: e, styles: {} }; } function F(e) { return [z(e)]; } var d = { heading: /^(#{1,6})\s+(.*)$/, setextH1: /^=+\s*$/, setextH2: /^-+\s*$/, bulletList: /^(\s*)([-*+])\s+(.*)$/, numberedList: /^(\s*)(\d+)\.\s+(.*)$/, checkList: /^(\s*)[-*+]\s+\[([ xX])\]\s+(.*)$/, codeFence: /^(\s*)(`{3,}|~{3,})(\w*)?\s*$/, blockquote: /^>\s?(.*)$/, callout: /^>\s*\[!(\w+)\]\s*$/, divider: /^(\s*)(-{3,}|\*{3,}|_{3,})\s*$/, tableRow: /^\|(.+)\|$/, tableSeparator: /^\|[\s\-:|]+\|$/, image: /^!\[([^\]]*)\]$([^)]+)$$/, blank: /^\s*$/, }; function U(e) { let n = e.split(/\r?\n/), t = [], r = { inCodeBlock: !1, codeBlockFence: "", lineNumber: 0 }; for (let i = 0; i < n.length; i++) { r.lineNumber = i + 1; let o = n[i], s = V(o, r, n, i); s && t.push(s); } return t; } function V(e, n, t, r) { let i = n.lineNumber; if (n.inCodeBlock) return e.match(d.codeFence) && e.trim().startsWith(n.codeBlockFence.charAt(0)) ? 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((t = c), (i = !1)) : o && n.push(c), e.index++; } return ( !o && t.length > 0 && (n.unshift(t), (t = [])), { id: e.options.generateId(), type: "table", content: [], children: [], props: { headers: t, rows: n, alignments: r.length > 0 ? r : void 0 }, } ); } function pe(e) { return e .split("|") .map((n) => n.trim()) .filter((n) => n !== "") .map((n) => { let t = n.startsWith(":"), r = n.endsWith(":"); return t && r ? "center" : t ? "left" : r ? "right" : null; }); } function fe(e) { let n = e.tokens[e.index], t = n.content, r = n.meta?.language ?? ""; return ( e.index++, { id: e.options.generateId(), type: "image", content: [], children: [], props: { url: t, alt: r || void 0 }, } ); } var ge = { classPrefix: "cm-", theme: "github", linkTarget: "_blank", sanitize: !1, plugins: [], customRenderers: {}, }; function N(e) { return { ...ge, ...e, plugins: e?.plugins ?? [], customRenderers: e?.customRenderers ?? {}, }; } function C(e, n) { let t = N(n), r = t.classPrefix, i = e; for (let c of t.plugins) c.transformBlock && (i = i.map(c.transformBlock)); let o = i.map((c) => { for (let a of t.plugins) if (a.renderBlock) { let u = a.renderBlock(c, () => S(c, t)); if (u !== null) return u; } let l = t.customRenderers[c.type]; return l ? l(c) : S(c, t); }); return `

${o.join(` `)}

`; } function qe(e, n) { let t = x(e); return C(t, n); } async function me(e, n) { let t = N(n); for (let i of t.plugins) i.init && (await i.init()); let r = C(e, n); for (let i of t.plugins) i.postProcess && (r = await i.postProcess(r)); return r; } function S(e, n) { let t = n.classPrefix; switch (e.type) { case "paragraph": return `

${m(e.content, n)}

`; case "heading": return ke(e, n); case "bulletList": return $e(e, n); case "numberedList": return ye(e, n); case "checkList": return be(e, n); case "codeBlock": return we(e, n); case "blockquote": return `

${m( e.content, n )}

`; case "table": return xe(e, n); case "image": return ve(e, n); case "divider": return `

`; case "callout": return Be(e, n); default: return `

${m(e.content, n)}

`; } } function ke(e, n) { let t = n.classPrefix, r = e.props.level, i = `h${r}`, o = m(e.content, n); return `<${i} class="${t}heading ${t}h${r}">${o}`; } function $e(e, n) { let t = n.classPrefix, r = e.children.map((i) => `

${m(i.content, n)}

`).join(` `); return `

${r} `; } function ye(e, n) { let t = n.classPrefix, r = e.children.map((i) => `

${m(i.content, n)}

`).join(` `); return `

${r} `; } function be(e, n) { let t = n.classPrefix, r = e.props.checked, i = r ? "checked disabled" : "disabled", o = r ? `${t}checked` : ""; return `

${m(e.content, n)}

`.trim(); } function we(e, n) { let t = n.classPrefix, r = e.content.map((l) => l.text).join(""), i = e.props.language || "", o = g(r), s = i ? ` language-${i}` : "", c = i ? ` data-language="${i}"` : ""; return `

${o}

`; } function xe(e, n) { let t = n.classPrefix, { headers: r, rows: i, alignments: o } = e.props, s = (a) => { let u = o?.[a]; return u ? ` style="text-align: ${u}"` : ""; }, c = r.length > 0 ? `${r .map((a, u) => `${g(a)}`) .join("")}` : "", l = i.map( (a) => `${a.map((u, h) => `${g(u)}`).join("")}` ).join(` `); return ` ${c} ${l}

`; } function ve(e, n) { let t = n.classPrefix, { url: r, alt: i, title: o, width: s, height: c } = e.props, l = i ? ` alt="${g(i)}"` : ' alt=""', a = o ? ` title="${g(o)}"` : "", u = s ? ` width="${s}"` : "", h = c ? ` height="${c}"` : "", p = `

`, k = i ? `

${g(i)}

` : ""; return `

${p}${k}`; } function Be(e, n) { let t = n.classPrefix, r = e.props.type, i = m(e.content, n); return `

${r}

${i}

`.trim(); } function m(e, n) { return e.map((t) => _e(t, n)).join(""); } function _e(e, n) { let t = g(e.text), r = e.styles; if ( (r.code && (t = `${t}`), r.highlight && (t = `${t}`), r.strikethrough && (t = `~~${t}~~`), r.underline && (t = `${t}`), r.italic && (t = `${t}`), r.bold && (t = `${t}`), r.link) ) { let i = n.linkTarget === "_blank" ? ' target="_blank" rel="noopener noreferrer"' : "", o = r.link.title ? ` title="${g(r.link.title)}"` : ""; t = `${t}`; } return t; } function g(e) { return e .replace(/&/g, "&") .replace(//g, ">") .replace(/"/g, """) .replace(/'/g, "'"); } var Ce = { github: "github", githubDark: "github-dark", minimal: "minimal" }; function Ne(e) { return `@create-markdown/preview/themes/${Ce[e]}.css`; } var Ie = { theme: "github-light", darkTheme: "github-dark", langs: [], lineNumbers: !1, classPrefix: "cm-", }, M = null, v = null; function Te(e) { let n = { ...Ie, ...e }; return { name: "shiki", async init() { if (!v) try { let r = (await import("/shiki@>=1.0.0?target=es2022")) .createHighlighter; if (!r) { console.warn( "@create-markdown/preview: Shiki module loaded but createHighlighter not found" ); return; } (M = r({ themes: [n.theme, n.darkTheme].filter(Boolean), langs: [ "javascript", "typescript", "jsx", "tsx", "json", "html", "css", "markdown", "python", "rust", "go", "bash", "shell", ...n.langs, ], })), (v = await M); } catch { console.warn( "@create-markdown/preview: Shiki not available. Install with: npm install shiki" ); } }, renderBlock(t, r) { if (t.type !== "codeBlock") return null; let i = t, o = i.content.map((c) => c.text).join(""), s = i.props.language || "text"; if (!v) return null; try { let l = v.codeToHtml(o, { lang: s, theme: n.theme }), a = n.classPrefix; return `

${l}

`; } catch { return null; } }, getCSS() { let t = n.classPrefix; return ` .${t}shiki pre { padding: 16px; border-radius: 6px; overflow-x: auto; margin: 0; } .${t}shiki code { font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace; font-size: 0.875em; background: transparent; padding: 0; } .${t}shiki .line { display: inline-block; width: 100%; } ${ n.lineNumbers ? ` .${t}shiki pre { counter-reset: line; } .${t}shiki .line::before { counter-increment: line; content: counter(line); display: inline-block; width: 2em; margin-right: 1em; text-align: right; color: #6e7781; user-select: none; } ` : "" } `.trim(); }, }; } var He = Te, Le = { theme: "default", config: {}, classPrefix: "cm-", useUniqueIds: !0 }, B = null, j = !1, D = 0; function Ee(e) { let n = { ...Le, ...e }; return { name: "mermaid", async init() { if (!j) try { let t = await import("/mermaid@>=10.0.0?target=es2022"); (B = t.default || t), B.initialize({ startOnLoad: !1, theme: n.theme, securityLevel: "loose", ...n.config, }), (j = !0); } catch { console.warn( "@create-markdown/preview: Mermaid not available. Install with: npm install mermaid" ); } }, renderBlock(t, r) { if (t.type !== "codeBlock") return null; let i = t; if (i.props.language?.toLowerCase() !== "mermaid") return null; let s = i.content.map((a) => a.text).join(""), c = n.classPrefix, l = n.useUniqueIds ? `mermaid-${Date.now()}-${++D}` : `mermaid-${++D}`; return `

${Ae(s)}

`.trim(); }, async postProcess(t) { if (!B) return t; try { let r = B, i = n.classPrefix, o = new RegExp( `

([\\s\\S]*?)

`, "g" ), s = [...t.matchAll(o)]; for (let c of s) { let [l, a, u] = c, h = Pe(u); try { let { svg: p } = await r.render(a, h); t = t.replace(l, `

${p}

`); } catch (p) { console.warn(`Failed to render Mermaid diagram: ${p}`); } } } catch (r) { console.warn("Mermaid post-processing failed:", r); } return t; }, getCSS() { let t = n.classPrefix; return ` .${t}mermaid-container { margin-bottom: 16px; overflow-x: auto; } .${t}mermaid { background-color: transparent; text-align: center; } .${t}mermaid-diagram { display: flex; justify-content: center; padding: 16px; background-color: #f6f8fa; border-radius: 6px; } .${t}mermaid-diagram svg { max-width: 100%; height: auto; } /* Dark theme adjustments */ @media (prefers-color-scheme: dark) { .${t}mermaid-diagram { background-color: #161b22; } } `.trim(); }, }; } var Re = Ee; function Ae(e) { return e .replace(/&/g, "&") .replace(//g, ">") .replace(/"/g, """) .replace(/'/g, "'"); } function Pe(e) { return e .replace(/&/g, "&") .replace(/</g, "<") .replace(/>/g, ">") .replace(/"/g, '"') .replace(/'/g, "'"); } var _ = class extends HTMLElement { shadow; plugins; defaultTheme; styleElement; contentElement; static get observedAttributes() { return ["theme", "link-target", "async"]; } constructor() { super(), (this.shadow = this.attachShadow({ mode: "open" })), (this.plugins = []), (this.defaultTheme = "github"), (this.styleElement = document.createElement("style")), this.shadow.appendChild(this.styleElement), (this.contentElement = document.createElement("div")), (this.contentElement.className = "markdown-preview-content"), this.shadow.appendChild(this.contentElement), this.updateStyles(); } connectedCallback() { this.render(); } attributeChangedCallback(n, t, r) { this.render(); } setPlugins(n) { (this.plugins = n), this.render(); } setDefaultTheme(n) { (this.defaultTheme = n), this.render(); } getMarkdown() { let n = this.getAttribute("blocks"); if (n) try { return JSON.parse(n).map((r) => r.content.map((i) => i.text).join("")) .join(` `); } catch { return ""; } return this.textContent || ""; } setMarkdown(n) { (this.textContent = n), this.render(); } setBlocks(n) { this.setAttribute("blocks", JSON.stringify(n)), this.render(); } getOptions() { let n = this.getAttribute("theme") || this.defaultTheme, t = this.getAttribute("link-target") || "_blank"; return { theme: n, linkTarget: t, plugins: this.plugins }; } getBlocks() { let n = this.getAttribute("blocks"); if (n) try { return JSON.parse(n); } catch { return ( console.warn("Invalid blocks JSON in markdown-preview element"), [] ); } let t = this.textContent || ""; return x(t); } async render() { let n = this.getBlocks(), t = this.getOptions(), r = this.hasAttribute("async") || this.plugins.length > 0; try { let i; r ? (i = await me(n, t)) : (i = C(n, t)), (this.contentElement.innerHTML = i); } catch (i) { console.error("Error rendering markdown preview:", i), (this.contentElement.innerHTML = '

Error rendering content

'); } } updateStyles() { let n = this.plugins.filter((t) => t.getCSS).map((t) => t.getCSS()).join(` `); this.styleElement.textContent = ` :host { display: block; } .markdown-preview-content { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.6; } .error { color: #cf222e; padding: 1rem; background: #ffebe9; border-radius: 6px; } ${n} `.trim(); } }, O = [], q = "github"; function Se(e) { let n = e?.tagName || "markdown-preview", t = e?.plugins || [], r = e?.defaultTheme || "github"; if (((O = t), (q = r), !customElements.get(n))) { class i extends _ { constructor() { super(), this.setPlugins(O), this.setDefaultTheme(q); } } customElements.define(n, i); } } function Fe() { typeof window < "u" && typeof customElements < "u" && Se(); } var Ue = "0.1.0"; export { _ as MarkdownPreviewElement, Ue as VERSION, Fe as autoRegister, C as blocksToHTML, Re as createMermaidPlugin, He as createShikiPlugin, Ne as getThemePath, qe as markdownToHTML, Ee as mermaidPlugin, Se as registerPreviewElement, me as renderAsync, Te as shikiPlugin, Ce as themes, }; //# sourceMappingURL=preview.bundle.mjs.map

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