Text-style

Create a TextStyle describing foreground color, background color, and emphasis flags such as bold or underline. This helper is the basic style value used by formatter style tags and config-driven formatter settings.

Interface

pub fn text_style(
  fg~ : String? = None,
  bg~ : String? = None,
  bold~ : Bool = false,
  dim~ : Bool = false,
  italic~ : Bool = false,
  underline~ : Bool = false,
) -> TextStyle {

input

• fg : String? - Optional foreground color, usually a named color or hex string.
• bg : String? - Optional background color.
• bold : Bool - Whether bold emphasis is enabled.
• dim : Bool - Whether dim emphasis is enabled.
• italic : Bool - Whether italic emphasis is enabled.
• underline : Bool - Whether underline emphasis is enabled.

output

• TextStyle - Reusable style value.

Explanation

Detailed rules explaining key parameters and behaviors

• This helper creates a plain style value; it does not register tags by itself.
• The returned style is commonly used in style_tag_registry() and TextFormatterConfig::new(style_tags=...).
• Color interpretation still depends on formatter color settings and runtime support.

How to Use

Here are some specific examples provided.

When Need A Reusable Custom Tag Style

When a formatter should define a named style tag:

let accent = text_style(fg=Some("#4cc9f0"), bold=true)

In this example, accent becomes a reusable style value that can be attached to a style tag registry or config map.

Error Case

e.g.:

• If a style uses colors but the formatter disables markup or color output, visible rendering may not reflect the full style.

• This helper does not validate higher-level tag naming because it only creates the style value itself.

Notes

1. This is the basic building block for style-tag customization.

2. Use style_tag_registry() when you need named tags rather than a raw style value.