使用Markdown功能

本主题讨论如何使用Aspose.Words实现Markdown功能。 Markdown是格式化纯文本的简单方法，可以轻松转换为HTML。 Aspose.Words支持以下Markdown功能:

• 标题
• 块引用
• 横向规则
• 大胆强调
• 斜体强调

Markdown功能实现大多遵循Aspose.WordsAPI中的CommonMark规范，所有功能都表示为相应的样式或直接格式。 这意味着

• 粗体和斜体表示为Font.Bold和Font.Italic。
• 标题是标题1-标题6样式的段落。
• 引号是样式名称中带有"Quote"的段落。
• HorizontalRule是具有HorizontalRule形状的段落。

将Markdown转换为Aspose.Words文档对象模型（DOM）有细微差别，如本文所述 将Markdown转换为文档对象模型(DOM).

Markdown重点文件

本节演示如何生成一个markdown文档，重点如下:

Markdown treats asterisks (*) and underscores (_) as indicators of emphasis.
You can write **bold** or *italic* text. 
You can also write ***BoldItalic***text.

下面的代码片段可用于生成上述markdown文档。

For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
System::SharedPtr<Document> doc = System::MakeObject<Document>();
System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(doc);
builder->Writeln(u"Markdown treats asterisks (*) and underscores (_) as indicators of emphasis.");
builder->Write(u"You can write ");
builder->get_Font()->set_Bold(true);
builder->Write(u"bold");
builder->get_Font()->set_Bold(false);
builder->Write(u" or ");
builder->get_Font()->set_Italic(true);
builder->Write(u"italic");
builder->get_Font()->set_Italic(false);
builder->Writeln(u" text. ");
builder->Write(u"You can also write ");
builder->get_Font()->set_Bold(true);
builder->get_Font()->set_Italic(true);
builder->Write(u"BoldItalic");
builder->get_Font()->set_Bold(false);
builder->get_Font()->set_Italic(false);
builder->Write(u"text.");

System::String outputPath = outputDataDir + u"WorkingWithMarkdownFeatures.MarkdownDocumentWithEmphases.md";
builder->get_Document()->Save(outputPath);

Markdown带标题的文件

本节演示如何生成标题如下的markdown文档:

The following produces headings:
# Heading1
## Heading2
### Heading3
#### Heading4
##### Heading5
###### Heading6
# **Bold Heading1**

下面的代码片段可用于生成上述markdown文档。

For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
System::SharedPtr<Document> doc = System::MakeObject<Document>();
System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(doc);

// By default Heading styles in Word may have bold and italic formatting.
// If we do not want text to be emphasized, set these properties explicitly to false.
builder->get_Font()->set_Bold(false);
builder->get_Font()->set_Italic(false);

builder->Writeln(u"The following produces headings:");
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Heading 1"));
builder->Writeln(u"Heading1");
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Heading 2"));
builder->Writeln(u"Heading2");
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Heading 3"));
builder->Writeln(u"Heading3");
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Heading 4"));
builder->Writeln(u"Heading4");
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Heading 5"));
builder->Writeln(u"Heading5");
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Heading 6"));
builder->Writeln(u"Heading6");

// Note, emphases are also allowed inside Headings:
builder->get_Font()->set_Bold(true);
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Heading 1"));
builder->Writeln(u"Bold Heading1");

System::String outputPath = outputDataDir + u"WorkingWithMarkdownFeatures.MarkdownDocumentWithHeadings.md";
doc->Save(outputPath);

带有块引号的Markdown文档

本节演示如何生成带有块引号的markdown文档，如下所示:

We support blockquotes in Markdown:
>*Lorem*
>*ipsum*
>The quotes can be of any level and can be nested:
>>>Quote level 3
>>>
>>>>Nested quote level 4
>
>*Back to first level*
>### Headings are allowed inside Quotes
>

下面的代码片段可用于生成上述markdown文档。

For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
System::SharedPtr<Document> doc = System::MakeObject<Document>();
System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(doc);

builder->Writeln(u"We support blockquotes in Markdown:");
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Quote"));
builder->Writeln(u"Lorem");
builder->Writeln(u"ipsum");
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Normal"));
builder->Writeln(u"The quotes can be of any level and can be nested:");
System::SharedPtr<Style> quoteLevel3 = doc->get_Styles()->Add(Aspose::Words::StyleType::Paragraph, u"Quote2");
builder->get_ParagraphFormat()->set_Style(quoteLevel3);
builder->Writeln(u"Quote level 3");
System::SharedPtr<Style> quoteLevel4 = doc->get_Styles()->Add(Aspose::Words::StyleType::Paragraph, u"Quote3");
builder->get_ParagraphFormat()->set_Style(quoteLevel4);
builder->Writeln(u"Nested quote level 4");
builder->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Quote"));
builder->Writeln();
builder->Writeln(u"Back to first level");
System::SharedPtr<Style> quoteLevel1WithHeading = doc->get_Styles()->Add(Aspose::Words::StyleType::Paragraph, u"Quote Heading 3");
builder->get_ParagraphFormat()->set_Style(quoteLevel1WithHeading);
builder->Write(u"Headings are allowed inside Quotes");

System::String outputPath = outputDataDir + u"WorkingWithMarkdownFeatures.MarkdownDocumentWithBlockQuotes.md";
doc->Save(outputPath);

Markdown具有水平规则的文档

本节演示如何生成具有水平规则的markdown文档，如下所示:

We support Horizontal rules (Thematic breaks) in Markdown:
-----

下面的代码片段可用于生成上述markdown文档。

For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
System::SharedPtr<DocumentBuilder> builder = System::MakeObject<DocumentBuilder>(System::MakeObject<Document>());

builder->Writeln(u"We support Horizontal rules (Thematic breaks) in Markdown:");
builder->InsertHorizontalRule();

System::String outputPath = outputDataDir + u"WorkingWithMarkdownFeatures.MarkdownDocumentWithHorizontalRule.md";
builder->get_Document()->Save(outputPath);

阅读Markdown文档

下面的代码片段向您展示了如何读取markdown文档。

For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
// This is Markdown document that was produced in example of UC3.
System::SharedPtr<Document> doc = System::MakeObject<Document>(inputDataDir + u"QuotesExample.md");

// Let's remove Heading formatting from a Quote in the very last paragraph.
System::SharedPtr<Paragraph> paragraph = doc->get_FirstSection()->get_Body()->get_LastParagraph();
paragraph->get_ParagraphFormat()->set_Style(doc->get_Styles()->idx_get(u"Quote"));

System::String outputPath = outputDataDir + u"WorkingWithMarkdownFeatures.ReadMarkdownDocument.md";
doc->Save(outputPath);

指定Markdown保存选项

Aspose.WordsAPI提供MarkdownSaveOptions类以指定其他选项，同时将文档保存为Markdown格式。

下面的代码示例演示了如何指定各种Markdown保存选项。

auto builder = System::MakeObject<DocumentBuilder>();
builder->Writeln(u"Some text!");

// specify MarkDownSaveOptions
auto saveOptions = SaveOptions::CreateSaveOptions(SaveFormat::Markdown);

builder->get_Document()->Save(outputDataDir + u"TestDocument.md", saveOptions);

如何在导出为Markdown时对齐表内的内容

Aspose.WordsAPI提供TableContentAlignment枚举，它定义对齐方向，以便在导出到Markdown文档时对齐表中的内容。 下面的代码示例演示如何在表内对齐内容。

auto builder = System::MakeObject<DocumentBuilder>();

// Create a new table with two cells.
builder->InsertCell();
builder->get_ParagraphFormat()->set_Alignment(ParagraphAlignment::Right);
builder->Write(u"Cell1");
builder->InsertCell();
builder->get_ParagraphFormat()->set_Alignment(ParagraphAlignment::Center);
builder->Write(u"Cell2");

auto saveOptions = System::MakeObject<MarkdownSaveOptions>();
// Makes all paragraphs inside table to be aligned to Left. 
saveOptions->set_TableContentAlignment(TableContentAlignment::Left);
builder->get_Document()->Save(outputDataDir  + u"left.md", saveOptions);

// Makes all paragraphs inside table to be aligned to Right. 
saveOptions->set_TableContentAlignment(TableContentAlignment::Right);
builder->get_Document()->Save(outputDataDir  + u"right.md", saveOptions);

// Makes all paragraphs inside table to be aligned to Center. 
saveOptions->set_TableContentAlignment(TableContentAlignment::Center);
builder->get_Document()->Save(outputDataDir  + u"center.md", saveOptions);

// Makes all paragraphs inside table to be aligned automatically.
// The alignment in this case will be taken from the first paragraph in corresponding table column.
saveOptions->set_TableContentAlignment(TableContentAlignment::Auto);
builder->get_Document()->Save(outputDataDir  + u"auto.md", saveOptions);