R: Combine two or more ANSI styles

combine_styles {crayon} | R Documentation

## Combine two or more ANSI styles

### Description

Combine two or more styles or style functions into a new style function that can be called on strings to style them.

### Usage

    combine_styles(...)

    ## S3 method for class 'crayon'
    crayon$style

### Arguments

`...` | The styles to combine. They will be applied from right to left.
`crayon` | A style function.
`style` | A style name that is included in `names(styles())`.

### Details

It does not usually make sense to combine two foreground colors (or two background colors), because only the first one applied will be used.

It does make sense to combine different kind of styles, e.g. background color, foreground color, bold font.

The `$` operator can also be used to combine styles. Not that the left hand side of `$` is a style function, and the right hand side is the name of a style in `styles()`.

### Value

The combined style function.

### Examples

    ## Use style names
    alert <- combine_styles("bold", "red4", "bgCyan")
    cat(alert("Warning!"), "\n")

    ## Or style functions
    alert <- combine_styles(bold, red, bgCyan)
    cat(alert("Warning!"), "\n")

    ## Combine a composite style
    alert <- combine_styles(bold, combine_styles(red, bgCyan))
    cat(alert("Warning!"), "\n")

    ## Shorter notation
    alert <- bold $ red $ bgCyan
    cat(alert("Warning!"), "\n")

[Package crayon version 1.3.2 Index]