docs(example): rainbow string

Signed-off-by: Carlos A Becker <caarlos0@users.noreply.github.com>

example/go.mod

@@ -5,6 +5,7 @@ go 1.16
 require (
 	github.com/charmbracelet/lipgloss v0.4.0
 	github.com/lucasb-eyer/go-colorful v1.2.0
+	github.com/muesli/gamut v0.3.0
 	golang.org/x/term v0.0.0-20210317153231-de623e64d2a6
 )
 

example/go.sum

@@ -1,19 +1,34 @@
+github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
+github.com/lucasb-eyer/go-colorful v1.0.2/go.mod h1:0MS4r+7BZKSJ5mw4/S5MPN+qHFF1fYclkSPilDOKW0s=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
 github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
 github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
 github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/muesli/clusters v0.0.0-20180605185049-a07a36e67d36/go.mod h1:mw5KDqUj0eLj/6DUNINLVJNoPTFkEuGMHtJsXLviLkY=
+github.com/muesli/clusters v0.0.0-20200529215643-2700303c1762 h1:p4A2Jx7Lm3NV98VRMKlyWd3nqf8obft8NfXlAUmqd3I=
+github.com/muesli/clusters v0.0.0-20200529215643-2700303c1762/go.mod h1:mw5KDqUj0eLj/6DUNINLVJNoPTFkEuGMHtJsXLviLkY=
+github.com/muesli/gamut v0.3.0 h1:ZL6bOudh1oBQjh5S+9lHZIZ/aodhn9V0F+RtSTb+HOQ=
+github.com/muesli/gamut v0.3.0/go.mod h1:28EAV1OoUHPOE9e4EgSfi4seod9CaSJMPlT1Q7ufB/I=
+github.com/muesli/kmeans v0.3.0 h1:cI2cpeS8m3pm+gTOdzl+7SlzZYSe+x0XoqXUyUvb1ro=
+github.com/muesli/kmeans v0.3.0/go.mod h1:eNyybq0tX9/iBEP6EMU4Y7dpmGK0uEhODdZpnG1a/iQ=
 github.com/muesli/reflow v0.2.1-0.20210115123740-9e1d0d53df68 h1:y1p/ycavWjGT9FnmSjdbWUlLGvcxrY0Rw3ATltrxOhk=
 github.com/muesli/reflow v0.2.1-0.20210115123740-9e1d0d53df68/go.mod h1:Xk+z4oIWdQqJzsxyjgl3P22oYZnHdZ8FFTHAQQt5BMQ=
 github.com/muesli/termenv v0.11.1-0.20220204035834-5ac8409525e0 h1:STjmj0uFfRryL9fzRA/OupNppeAID6QJYPMavTL7jtY=
 github.com/muesli/termenv v0.11.1-0.20220204035834-5ac8409525e0/go.mod h1:Bd5NYQ7pd+SrtBSrSNoBBmXlcY8+Xj4BMJgh8qcZrvs=
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/wcharczuk/go-chart/v2 v2.1.0/go.mod h1:yx7MvAVNcP/kN9lKXM/NTce4au4DFN99j6i1OwDclNA=
+github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
+github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
+golang.org/x/image v0.0.0-20200927104501-e162460cd6b5/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20210317153231-de623e64d2a6 h1:EC6+IGYTjPpRfv9a2b/6Puw0W+hLtAhkV1tPsXhutqs=
 golang.org/x/term v0.0.0-20210317153231-de623e64d2a6/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

example/main.go

@@ -2,11 +2,13 @@ package main
 
 import (
 	"fmt"
+	"image/color"
 	"os"
 	"strings"
 
 	"github.com/charmbracelet/lipgloss"
 	"github.com/lucasb-eyer/go-colorful"
+	"github.com/muesli/gamut"
 	"golang.org/x/term"
 )
 
@@ -28,6 +30,7 @@ var (
 	subtle    = lipgloss.AdaptiveColor{Light: "#D9DCCF", Dark: "#383838"}
 	highlight = lipgloss.AdaptiveColor{Light: "#874BFD", Dark: "#7D56F4"}
 	special   = lipgloss.AdaptiveColor{Light: "#43BF6D", Dark: "#73F59F"}
+	blends    = gamut.Blends(highlight, special, 24)
 
 	divider = lipgloss.NewStyle().
 		SetString("•").
@@ -233,7 +236,7 @@ func main() {
 		okButton := activeButtonStyle.Render("Yes")
 		cancelButton := buttonStyle.Render("Maybe")
 
-		question := lipgloss.NewStyle().Width(50).Align(lipgloss.Center).Render("Are you sure you want to eat marmalade?")
+		question := lipgloss.NewStyle().Width(50).Align(lipgloss.Center).Render(Rainbow(lipgloss.NewStyle(), "Are you sure you want to eat marmalade?", blends))
 		buttons := lipgloss.JoinHorizontal(lipgloss.Top, okButton, cancelButton)
 		ui := lipgloss.JoinVertical(lipgloss.Center, question, buttons)
 
@@ -369,3 +372,12 @@ func max(a, b int) int {
 	}
 	return b
 }
+
+func rainbow(base lipgloss.Style, s string, colors []color.Color) string {
+	var str string
+	for i, ss := range s {
+		color, _ := colorful.MakeColor(colors[i%len(colors)])
+		str = str + base.Copy().Foreground(lipgloss.Color(color.Hex())).Render(string(ss))
+	}
+	return str
+}

go.mod

@@ -7,5 +7,4 @@ require (
 	github.com/mattn/go-runewidth v0.0.13
 	github.com/muesli/reflow v0.2.1-0.20210115123740-9e1d0d53df68
 	github.com/muesli/termenv v0.11.1-0.20220204035834-5ac8409525e0
-	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c
 )