using Aspose.Words;
using Aspose.Words.Loading;
using Markdig;
using System.Text;
using System.Text.RegularExpressions;
public static class WordExporter
{
private static readonly MarkdownPipeline MarkdownPipeline = new MarkdownPipelineBuilder()
.UseAdvancedExtensions()
.Build();
public static void MarkdownToWord(string markdown, string outputPath)
{
if (string.IsNullOrWhiteSpace(markdown))
throw new ArgumentException("markdown 不能为空", nameof(markdown));
// 清理 AI 常带的 ```markdown 和 ```
markdown = CleanMarkdown(markdown);
// AI 返回内容有时会把表格压成一行，这里做一次轻量修复
markdown = NormalizeSingleLineTableMarkdown(markdown);
// Markdown -> HTML，再由 Aspose 读取 HTML 保留格式
var htmlBody = Markdown.ToHtml(markdown, MarkdownPipeline);
var htmlContent = BuildHtmlDocument(htmlBody);
var htmlBytes = Encoding.UTF8.GetBytes(htmlContent);
using var stream = new MemoryStream(htmlBytes);
stream.Position = 0;
var loadOptions = new LoadOptions
{
LoadFormat = LoadFormat.Html,
Encoding = Encoding.UTF8
};
//判断路径是否存在
var dir = Path.GetDirectoryName(outputPath);
if (!string.IsNullOrWhiteSpace(dir) && !Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
var doc = new Document(stream, loadOptions);
doc.Save(outputPath, SaveFormat.Docx);
}
private static string CleanMarkdown(string input)
{
input = input.Trim();
if (input.StartsWith("```markdown", StringComparison.OrdinalIgnoreCase))
input = input.Substring("```markdown".Length);
if (input.StartsWith("```"))
input = input.Substring(3);
if (input.EndsWith("```"))
input = input.Substring(0, input.Length - 3);
return input.Trim();
}
private static string NormalizeSingleLineTableMarkdown(string markdown)
{
if (string.IsNullOrWhiteSpace(markdown))
return markdown;
// 已经是多行内容则不处理
if (markdown.Contains('\n') || markdown.Contains('\r'))
return markdown;
// 仅在明显是表格时处理，避免误伤普通文本
if (!markdown.Contains("|") || !Regex.IsMatch(markdown, @"\|\s*[-:]{3,}"))
return markdown;
// 把单行中的“行结束 + 下一行开始”从 "| |" 规整为换行
var normalized = Regex.Replace(markdown, @"\|\s+\|", "|\n|");
return normalized;
}
private static string BuildHtmlDocument(string body)
{
return $@"
{body}
";
}
}