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117 lines
2.2 KiB
117 lines
2.2 KiB
// ------------------------------------------------------------------------
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// Project active2
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// Active Thing (activething.com) git.activething.com/go
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//
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// File n non_colorable_writer.go
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// Created by DEV
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// Modified 06/04/2024
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//
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// Copyright 2024 activething.com
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// ------------------------------------------------------------------------
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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package ansi
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import (
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"bytes"
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"io"
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)
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type (
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NonEscapeWriter struct {
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writer io.Writer
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}
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)
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func NewNonEscapeWriter(w io.Writer) *NonEscapeWriter {
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return &NonEscapeWriter{ writer: w } }
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/*
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func (w *NonEscapeWriter) Write(data []byte) (n int, e error) {
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var pt bytes.Buffer
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var ef bool
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for _, b := range data {
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if b == 0x1b {
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ef = true
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continue
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}
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if ef && b == 0x5b {
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ef = false
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continue
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}
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if ef {
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ef = g.charsEscs[b] == 1
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continue
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}
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pt.WriteByte(b)
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}
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_, e = pt.WriteTo(w.writer)
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if e != nil {
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return n, e
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}
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return len(data), nil
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}
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*/
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func (w *NonEscapeWriter) Write(data []byte) (n int, err error) {
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er := bytes.NewReader(data)
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var plaintext bytes.Buffer
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loop:
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for {
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c1, err := er.ReadByte()
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if err != nil {
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plaintext.WriteTo(w.writer)
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break loop
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}
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if c1 != 0x1b {
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plaintext.WriteByte(c1)
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continue
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}
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_, err = plaintext.WriteTo(w.writer)
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if err != nil {
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break loop
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}
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c2, err := er.ReadByte()
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if err != nil {
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break loop
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}
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if c2 != 0x5b {
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continue
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}
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for {
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c, err := er.ReadByte()
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if err != nil {
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break loop
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}
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if g.charsEscs[c] == 1 {
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//if ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '@' {
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break
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}
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}
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}
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return len(data), nil
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} |