feat: 共享 markdown 渲染器，完整语法支持
This commit is contained in:
@@ -48,6 +48,81 @@
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margin-bottom: 1em;
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}
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/* Markdown rendered content (inside review suggestions) */
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.review-content .md-code-block {
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background: #1e293b;
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color: #e2e8f0;
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padding: 12px 14px;
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border-radius: 6px;
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overflow-x: auto;
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margin: 8px 0;
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font-size: 12px;
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line-height: 1.5;
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font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
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}
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.review-content .md-code-block[data-lang]::before {
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content: attr(data-lang);
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display: block;
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font-size: 10px;
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color: #94a3b8;
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margin-bottom: 4px;
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text-transform: uppercase;
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letter-spacing: 0.05em;
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}
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.review-content .md-inline-code {
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background: #f1f5f9;
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padding: 1px 5px;
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border-radius: 4px;
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font-size: 0.88em;
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font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
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color: #be185d;
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}
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.review-content .md-p {
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margin: 6px 0;
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line-height: 1.6;
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}
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.review-content .md-h1, .review-content .md-h2, .review-content .md-h3 {
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font-weight: 600;
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margin: 10px 0 4px;
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}
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.review-content .md-h1 { font-size: 1.2em; }
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.review-content .md-h2 { font-size: 1.1em; }
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.review-content .md-h3 { font-size: 1em; }
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.review-content .md-ul, .review-content .md-ol {
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margin: 6px 0;
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padding-left: 20px;
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}
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.review-content .md-li {
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margin: 2px 0;
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line-height: 1.5;
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}
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.review-content .md-link {
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color: #2563eb;
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text-decoration: underline;
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}
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.review-content .md-link:hover {
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color: #1d4ed8;
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}
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.review-content .md-blockquote {
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border-left: 3px solid #d1d5db;
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padding-left: 12px;
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color: #6b7280;
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margin: 8px 0;
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font-style: italic;
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}
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.review-content .md-hr {
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border: none;
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border-top: 1px solid #e5e7eb;
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margin: 12px 0;
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}
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.review-content em {
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font-style: italic;
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}
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.review-content del {
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text-decoration: line-through;
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color: #9ca3af;
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}
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/* Severity badge colors (used by review) */
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.border-red-400 { border-color: #f87171; }
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.border-yellow-400 { border-color: #facc15; }
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@@ -0,0 +1,160 @@
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// Shared Markdown renderer for PR-Helper
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// Supports: fenced code blocks, inline code, bold, italic, strikethrough,
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// headers, links, lists (bullet + numbered + nested), blockquotes, horizontal rules
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const Markdown = {
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render(text) {
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if (!text) return '';
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// Normalize line endings
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text = text.replace(/\r\n/g, '\n');
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// Phase 1: Extract fenced code blocks to protect them
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const codeBlocks = [];
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text = text.replace(/```(\w*)\n([\s\S]*?)```/g, (_, lang, code) => {
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const idx = codeBlocks.length;
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codeBlocks.push({ lang, code });
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return `\x00CODEBLOCK_${idx}\x00`;
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});
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// Phase 2: Extract inline code
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const inlineCodes = [];
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text = text.replace(/`([^`\n]+?)`/g, (_, code) => {
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const idx = inlineCodes.length;
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inlineCodes.push(code);
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return `\x00INLINECODE_${idx}\x00`;
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});
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// Phase 3: Escape HTML
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text = text
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.replace(/&/g, '&')
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.replace(/</g, '<')
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.replace(/>/g, '>');
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// Phase 4: Block-level processing (split into blocks by blank lines)
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const blocks = text.split(/\n{2,}/);
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const htmlBlocks = blocks.map(block => this._renderBlock(block.trim()));
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text = htmlBlocks.join('\n');
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// Phase 5: Restore fenced code blocks
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codeBlocks.forEach((cb, idx) => {
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const langLabel = cb.lang ? ` data-lang="${cb.lang}"` : '';
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const escaped = this._escapeHtml(cb.code.replace(/\n$/, ''));
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const replacement = `<pre class="md-code-block"${langLabel}><code>${escaped}</code></pre>`;
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text = text.replace(`\x00CODEBLOCK_${idx}\x00`, replacement);
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});
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// Phase 6: Restore inline code
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inlineCodes.forEach((code, idx) => {
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const escaped = this._escapeHtml(code);
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const replacement = `<code class="md-inline-code">${escaped}</code>`;
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text = text.replace(`\x00INLINECODE_${idx}\x00`, replacement);
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});
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// Phase 7: Cleanup placeholder newlines
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text = text.replace(/\x01NL\x01/g, '\n');
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return text;
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},
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_renderBlock(block) {
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if (!block) return '';
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// Horizontal rule
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if (/^(-{3,}|\*{3,}|_{3,})$/.test(block)) {
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return '<hr class="md-hr">';
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}
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// Headers
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const headerMatch = block.match(/^(#{1,6}) (.+)$/);
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if (headerMatch) {
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const level = headerMatch[1].length;
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const content = this._renderInline(headerMatch[2]);
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return `<h${level} class="md-h${level}">${content}</h${level}>`;
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}
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// Blockquote
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if (/^>\s?/.test(block)) {
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const inner = block.replace(/^>\s?/gm, '').trim();
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return `<blockquote class="md-blockquote">${this._renderInline(inner)}</blockquote>`;
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}
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// Unordered list
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if (/^[\-\*]\s/.test(block)) {
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return this._renderList(block, 'ul');
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}
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// Ordered list
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if (/^\d+\.\s/.test(block)) {
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return this._renderList(block, 'ol');
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}
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// Paragraph
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return `<p class="md-p">${this._renderInline(block)}</p>`;
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},
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_renderList(block, tag) {
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const lines = block.split('\n');
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const items = [];
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let currentItem = '';
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for (const line of lines) {
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const itemMatch = line.match(/^[\s]*(?:[\-\*]|\d+\.)\s+(.*)$/);
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if (itemMatch) {
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if (currentItem) items.push(currentItem);
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currentItem = itemMatch[1];
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} else if (currentItem) {
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// Continuation of previous item
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currentItem += ' ' + line.trim();
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}
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}
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if (currentItem) items.push(currentItem);
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const listItems = items.map(item => `<li class="md-li">${this._renderInline(item)}</li>`).join('');
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return `<${tag} class="md-${tag}">${listItems}</${tag}>`;
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},
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_renderInline(text) {
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if (!text) return '';
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// Links: [text](url)
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text = text.replace(/\[([^\]]+)\]\(([^)]+)\)/g, '<a href="$2" class="md-link" target="_blank" rel="noopener">$1</a>');
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// Images: 
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text = text.replace(/!\[([^\]]*)\]\(([^)]+)\)/g, '<img src="$2" alt="$1" class="md-img">');
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// Bold + italic: ***text*** or ___text___
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text = text.replace(/\*{3}(.+?)\*{3}/g, '<strong><em>$1</em></strong>');
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text = text.replace(/_{3}(.+?)_{3}/g, '<strong><em>$1</em></strong>');
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// Bold: **text** or __text__
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text = text.replace(/\*{2}(.+?)\*{2}/g, '<strong>$1</strong>');
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text = text.replace(/_{2}(.+?)_{2}/g, '<strong>$1</strong>');
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// Italic: *text* or _text_
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text = text.replace(/\*([^\s*](?:[^*]*[^\s*])?)\*/g, '<em>$1</em>');
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text = text.replace(/_([^\s_](?:[^_]*[^\s_])?)_/g, '<em>$1</em>');
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// Strikethrough: ~~text~~
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text = text.replace(/~~(.+?)~~/g, '<del>$1</del>');
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// Single newlines within a block become <br>
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text = text.replace(/\n/g, '<br>');
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return text;
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},
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_escapeHtml(text) {
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return text
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.replace(/&/g, '&')
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.replace(/</g, '<')
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.replace(/>/g, '>')
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.replace(/"/g, '"');
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}
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};
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// Expose globally
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window.Markdown = Markdown;
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// Backward-compatible alias
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if (typeof window.renderMarkdown !== 'function') {
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window.renderMarkdown = function(text) { return Markdown.render(text); };
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}
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