irc-client/color.go

package ircclient

import (
	"fmt"
	"log"
	"regexp"
)

// Stripper removes IRC color and formatting codes.
func Stripper(input string) string {
	var rx *regexp.Regexp
	var err error
	rx, err = regexp.Compile("\x02|\x1d|\x16|\x1e|\x11|\x16|\x0f|\x03[0-9]{2}")
	if err != nil {
		log.Panic("regexp:", err)
	}
	input = rx.ReplaceAllString(input, "")
	return input
}

// Set IRC bold
func Bold(input string) string {
	return "\x02" + input + "\x02"
}

// Set IRC Italics
func Italics(input string) string {
	return "\x1d" + input + "\x1d"
}

// Set IRC underline
func Underline(input string) string {
	return "\x16" + input + "\x16"
}

// Set IRC strike through
func Strike(input string) string {
	return "\x1e" + input + "\x1e"
}

// Set IRC monospace
func Monospace(input string) string {
	return "\x11" + input + "\x11"
}

// Set IRC reverse
func Reverse(input string) string {
	return "\x16" + input + "\x16"
}

// Reset IRC reset color and formatting
func Reset() string {
	return "\x0f"
}

// Color set IRC color
//
//	We always output the color code as 2 digits.
func Color(color int) string {
	return fmt.Sprintf("\x03%02d", color)
}

// Format a string with the given color code, and reset.
func ColorString(color int, input string) string {
	return fmt.Sprintf("\x03%02d%s\x0f", color, input)
}