扩展 Shortcode - mermaid

mermaid shortcode 使用 Mermaid 库提供绘制图表和流程图的功能。

Mermaid 是一个可以帮助你在文章中绘制图表和流程图的库, 类似 Markdown 的语法。

只需将你的 mermaid 代码插入 mermaid shortcode 中即可。

流程图

一个 流程图 mermaid 示例:

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{{< mermaid >}}
graph LR;
    A[Hard edge] -->|Link text| B(Round edge)
    B --> C{Decision}
    C -->|One| D[Result one]
    C -->|Two| E[Result two]
{{< /mermaid >}}

呈现的输出效果如下:

时序图

一个 时序图 mermaid 示例:

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{{< mermaid >}}
sequenceDiagram
    participant Alice
    participant Bob
    Alice->>John: Hello John, how are you?
    loop Healthcheck
        John->John: Fight against hypochondria
    end
    Note right of John: Rational thoughts <br/>prevail...
    John-->Alice: Great!
    John->Bob: How about you?
    Bob-->John: Jolly good!
{{< /mermaid >}}

呈现的输出效果如下:

类图

一个 类图 mermaid 示例:

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{{< mermaid >}}
classDiagram
    Animal <|-- Duck
    Animal <|-- Fish
    Animal <|-- Zebra
    Animal : +int age
    Animal : +String gender
    Animal: +isMammal()
    Animal: +mate()
    class Duck{
        +String beakColor
        +swim()
        +quack()
    }
    class Fish{
        -int sizeInFeet
        -canEat()
    }
    class Zebra{
        +bool is_wild
        +run()
    }
{{< /mermaid >}}

呈现的输出效果如下:

状态图

一个 状态图 mermaid 示例:

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{{< mermaid >}}
stateDiagram-v2
    [*] --> Still
    Still --> [*]
    Still --> Moving
    Moving --> Still
    Moving --> Crash
    Crash --> [*]
{{< /mermaid >}}

呈现的输出效果如下:

实体关系图

一个 实体关系图 mermaid 示例:

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{{< mermaid >}}
erDiagram
    CUSTOMER ||--o{ ORDER : places
    ORDER ||--|{ LINE-ITEM : contains
    CUSTOMER }|..|{ DELIVERY-ADDRESS : uses
{{< /mermaid >}}

呈现的输出效果如下:

用户体验旅程图

一个 用户体验旅程图 mermaid 示例:

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{{< mermaid >}}
journey
    title My working day
    section Go to work
      Make tea: 5: Me
      Go upstairs: 3: Me
      Do work: 1: Me, Cat
    section Go home
      Go downstairs: 5: Me
      Sit down: 5: Me
{{< /mermaid >}}

呈现的输出效果如下:

甘特图

一个 甘特图 mermaid 示例:

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{{< mermaid >}}
gantt
dateFormat  YYYY-MM-DD
title Adding GANTT diagram to mermaid
excludes weekdays 2014-01-10

section A section
Completed task            :done,    des1, 2014-01-06,2014-01-08
Active task               :active,  des2, 2014-01-09, 3d
Future task               :         des3, after des2, 5d
Future task2              :         des4, after des3, 5d
{{< /mermaid >}}

呈现的输出效果如下:

饼图

一个 饼图 mermaid 示例:

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{{< mermaid >}}
pie
    "Dogs" : 386
    "Cats" : 85
    "Rats" : 15
{{< /mermaid >}}

呈现的输出效果如下:

依赖图

一个 依赖图 mermaid 示例:

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{{< mermaid >}}
requirementDiagram

requirement test_req {
id: 1
text: the test text.
risk: high
verifymethod: test
}

element test_entity {
type: simulation
}

test_entity - satisfies -> test_req
{{< /mermaid >}}

呈现的输出效果如下:

Git 图

一个 Git 图 mermaid 示例:

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{{< mermaid >}}
gitGraph
    commit
    commit
    branch develop
    checkout develop
    commit
    commit
    checkout main
    merge develop
    commit
    commit
{{< /mermaid >}}

呈现的输出效果如下:

C4 图 ⚠️

C4 图:目前这是一个实验性的图表。语法和属性可能会在未来的版本中发生变化。当语法稳定后,将会提供适当的文档说明。

Mermaid 的 C4 图语法与 PlantUML 兼容。以下是示例:

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{{< mermaid >}}
    C4Context
      title System Context diagram for Internet Banking System
      Enterprise_Boundary(b0, "BankBoundary0") {
        Person(customerA, "Banking Customer A", "A customer of the bank, with personal bank accounts.")
        Person(customerB, "Banking Customer B")
        Person_Ext(customerC, "Banking Customer C", "desc")

        Person(customerD, "Banking Customer D", "A customer of the bank, <br/> with personal bank accounts.")

        System(SystemAA, "Internet Banking System", "Allows customers to view information about their bank accounts, and make payments.")

        Enterprise_Boundary(b1, "BankBoundary") {

          SystemDb_Ext(SystemE, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")

          System_Boundary(b2, "BankBoundary2") {
            System(SystemA, "Banking System A")
            System(SystemB, "Banking System B", "A system of the bank, with personal bank accounts. next line.")
          }

          System_Ext(SystemC, "E-mail system", "The internal Microsoft Exchange e-mail system.")
          SystemDb(SystemD, "Banking System D Database", "A system of the bank, with personal bank accounts.")

          Boundary(b3, "BankBoundary3", "boundary") {
            SystemQueue(SystemF, "Banking System F Queue", "A system of the bank.")
            SystemQueue_Ext(SystemG, "Banking System G Queue", "A system of the bank, with personal bank accounts.")
          }
        }
      }

      BiRel(customerA, SystemAA, "Uses")
      BiRel(SystemAA, SystemE, "Uses")
      Rel(SystemAA, SystemC, "Sends e-mails", "SMTP")
      Rel(SystemC, customerA, "Sends e-mails to")

      UpdateElementStyle(customerA, $fontColor="red", $bgColor="grey", $borderColor="red")
      UpdateRelStyle(customerA, SystemAA, $textColor="blue", $lineColor="blue", $offsetX="5")
      UpdateRelStyle(SystemAA, SystemE, $textColor="blue", $lineColor="blue", $offsetY="-10")
      UpdateRelStyle(SystemAA, SystemC, $textColor="blue", $lineColor="blue", $offsetY="-40", $offsetX="-50")
      UpdateRelStyle(SystemC, customerA, $textColor="red", $lineColor="red", $offsetX="-50", $offsetY="20")

      UpdateLayoutConfig($c4ShapeInRow="3", $c4BoundaryInRow="1")
{{< /mermaid >}}

Mindmap ⚠️

  • Bump Mermaid from 9.x to 10.x

Timeline Diagram ⚠️

  • Bump Mermaid from 9.x to 10.x

Mermaid 主题

以下是可用的主题:

  1. default - 这是所有图表的默认主题。
  2. neutral - 这个主题非常适合黑白打印的文档。
  3. dark - 这个主题适合与深色元素或暗模式搭配使用。
  4. forest - 这个主题包含各种绿色。
  5. base - 这是唯一可以修改的主题。使用此主题作为自定义的基础。

请前往 Theme Configuration | Mermaid 页面,了解有关动态和集成主题配置的更多信息。

站点范围主题

您可以通过 hugo.toml 中的 params.mermaid 参数全局配置 Mermaid 主题。

图表特定主题

要自定义单个图表的主题,请使用 init 指令。

以下是使用 init 指令将主题设置为 forest 的示例代码:

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{{< mermaid >}}
%%{init: {'theme':'forest'}}%%
  graph TD
    a --> b
{{< /mermaid >}}
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