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129 lines
3.5 KiB
Go
129 lines
3.5 KiB
Go
// Copyright 2013 bee authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package main
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import (
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"fmt"
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"io"
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)
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type outputMode int
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// DiscardNonColorEscSeq supports the divided color escape sequence.
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// But non-color escape sequence is not output.
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// Please use the OutputNonColorEscSeq If you want to output a non-color
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// escape sequences such as ncurses. However, it does not support the divided
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// color escape sequence.
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const (
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_ outputMode = iota
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DiscardNonColorEscSeq
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OutputNonColorEscSeq
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)
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// NewColorWriter creates and initializes a new ansiColorWriter
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// using io.Writer w as its initial contents.
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// In the console of Windows, which change the foreground and background
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// colors of the text by the escape sequence.
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// In the console of other systems, which writes to w all text.
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func NewColorWriter(w io.Writer) io.Writer {
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return NewModeColorWriter(w, DiscardNonColorEscSeq)
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}
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// NewModeColorWriter create and initializes a new ansiColorWriter
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// by specifying the outputMode.
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func NewModeColorWriter(w io.Writer, mode outputMode) io.Writer {
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if _, ok := w.(*colorWriter); !ok {
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return &colorWriter{
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w: w,
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mode: mode,
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}
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}
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return w
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}
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func bold(message string) string {
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return fmt.Sprintf("\x1b[1m%s\x1b[21m", message)
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}
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// Cyan returns a cyan string
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func Cyan(message string) string {
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return fmt.Sprintf("\x1b[36m%s\x1b[0m", message)
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}
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// Blue returns a blue string
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func Blue(message string) string {
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return fmt.Sprintf("\x1b[34m%s\x1b[0m", message)
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}
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// Red returns a red string
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func Red(message string) string {
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return fmt.Sprintf("\x1b[31m%s\x1b[0m", message)
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}
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// Green returns a green string
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func Green(message string) string {
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return fmt.Sprintf("\x1b[32m%s\x1b[0m", message)
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}
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// Yellow returns a yellow string
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func Yellow(message string) string {
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return fmt.Sprintf("\x1b[33m%s\x1b[0m", message)
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}
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// Gray returns a gray string
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func Gray(message string) string {
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return fmt.Sprintf("\x1b[37m%s\x1b[0m", message)
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}
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// Magenta returns a magenta string
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func Magenta(message string) string {
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return fmt.Sprintf("\x1b[35m%s\x1b[0m", message)
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}
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// CyanBold returns a cyan bold string
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func CyanBold(message string) string {
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return fmt.Sprintf("\x1b[36m%s\x1b[0m", bold(message))
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}
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// BlueBold returns a blue bold string
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func BlueBold(message string) string {
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return fmt.Sprintf("\x1b[34m%s\x1b[0m", bold(message))
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}
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// RedBold returns a red bold string
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func RedBold(message string) string {
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return fmt.Sprintf("\x1b[31m%s\x1b[0m", bold(message))
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}
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// GreenBold returns a green bold string
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func GreenBold(message string) string {
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return fmt.Sprintf("\x1b[32m%s\x1b[0m", bold(message))
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}
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// YellowBold returns a yellow bold string
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func YellowBold(message string) string {
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return fmt.Sprintf("\x1b[33m%s\x1b[0m", bold(message))
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}
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// GrayBold returns a gray bold string
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func GrayBold(message string) string {
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return fmt.Sprintf("\x1b[37m%s\x1b[0m", bold(message))
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}
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// MagentaBold returns a magenta bold string
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func MagentaBold(message string) string {
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return fmt.Sprintf("\x1b[35m%s\x1b[0m", bold(message))
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}
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