Underline

Description

Underline text formatting adds an underline decoration to text content using the underline mark in ADF. It provides emphasis through visual decoration and can be combined with other text formatting marks.

.md markdown syntax

Standard Underline Syntax

<!-- adf:text marks="underline" -->
<u>underlined text</u>

Underline with Custom Attributes

<!-- adf:text color="#0066cc" underlineStyle="solid" -->
<u>Blue underlined text</u>

Combined Formatting

<u>**Bold underlined text**</u>
<u>*Italic underlined text*</u>

.adf-schema.json schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "text"
    },
    "text": {
      "type": "string",
      "description": "Text content"
    },
    "marks": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "type": {
            "type": "string",
            "const": "underline"
          },
          "attrs": {
            "type": "object",
            "properties": {
              "color": {
                "type": "string",
                "pattern": "^#[0-9a-fA-F]{6}$",
                "description": "Text color (hex)"
              }
            },
            "additionalProperties": true
          }
        }
      },
      "minItems": 1
    }
  },
  "required": ["type", "text", "marks"]
}

Examples

Simple Underlined Text

This is <u>underlined text</u> in a sentence.

Important Information

<u>Important:</u> Please read the following carefully.

Legal Documents

The undersigned agrees to the <u>terms and conditions</u>.

Names and Titles

Book title: <u>The Great Gatsby</u>
Author: <u>F. Scott Fitzgerald</u>

Combined with Other Formatting

<u>**Bold underlined heading**</u>
<u>*Italic underlined emphasis*</u>

In Lists

- <u>Term 1</u>: Definition of first term
- <u>Term 2</u>: Definition of second term
- <u>Term 3</u>: Definition of third term

Keyboard Shortcuts

Press <u>Ctrl+U</u> to toggle underline formatting.

Form Fields

Name: <u>                    </u>
Date: <u>                    </u>
Signature: <u>                    </u>

Academic Citations

See <u>Smith, J. (2023)</u> for more details.

Nested Formatting

<u>This underlined text contains **bold** and *italic* sections</u>