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munir ishak 4 jaren geleden
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  1. 1
    0
      .gitignore
  2. 29
    0
      README.md
  3. 44
    0
      buffer-helper.js
  4. 311
    0
      index.js
  5. 45
    0
      package-lock.json
  6. 28
    0
      package.json

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.gitignore Bestand weergeven

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+node_modules/

+ 29
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README.md Bestand weergeven

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+# escpos-printer-toolkit
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+
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+A printer command toolkit for translate text to ESC/POS command. 
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+
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+e.g.  Text "<C>这是一段打印测试文字</C>"
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+
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+will be translate to esc/pos command with the text align center.
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+
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+## Installation
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+
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+```
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+npm install escpos-printer-toolkit --save
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+```
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+
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+## Usage
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+
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+```javascript
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+import EPToolkit from 'escpos-printer-toolkit';
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+let options = {
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+  beep: true, 
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+  cut: true, 
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+  tailingLine: true,
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+  encoding: 'GBK'
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+}
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+EPToolkit.exchange_text("<C>这是一段打印测试文字</C>", options)
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+
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+```
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+
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+

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buffer-helper.js Bestand weergeven

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+const Buffer = require('buffer').Buffer
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+
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+var BufferHelper = function () {
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+  this.buffers = [];
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+  this.size = 0;
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+  Object.defineProperty(this, 'length', {
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+    get: function () {
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+      return this.size;
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+    }
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+  });
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+};
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+
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+BufferHelper.prototype.concat = function (buffer) {
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+  this.buffers.push(buffer);
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+  this.size += buffer.length;
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+  return this;
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+};
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+
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+BufferHelper.prototype.empty = function () {
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+  this.buffers = [];
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+  this.size = 0;
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+  return this;
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+};
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+
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+BufferHelper.prototype.toBuffer = function () {
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+  return Buffer.concat(this.buffers, this.size);
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+};
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+
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+BufferHelper.prototype.toString = function (encoding) {
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+  return this.toBuffer().toString(encoding);
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+};
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+
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+BufferHelper.prototype.load = function (stream, callback) {
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+  var that = this;
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+  stream.on('data', function (trunk) {
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+    that.concat(trunk);
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+  });
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+  stream.on('end', function () {
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+    callback(null, that.toBuffer());
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+  });
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+  stream.once('error', callback);
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+};
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+
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+module.exports = BufferHelper;

+ 311
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index.js Bestand weergeven

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+const BufferHelper  = require("./buffer-helper");
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+// const fs = require('fs');
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+// const Jimp = require("jimp");
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+// const request = require('request');
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+const iconv = require("iconv-lite");
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+// const Deasync = require("deasync");
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+const Buffer = require('buffer').Buffer
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+
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+var exchange_text_with_times = exports.exchange_text_with_times = function exchange_text_with_times(text, times, options){
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+    times = (times === undefined ? 1 : times);
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+    var bytes = new BufferHelper();
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+    var text_buffer = exchange_text(text, options)
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+    for(var i=0;i<times;i++){
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+        bytes.concat(text_buffer);
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+    }
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+    return bytes.toBuffer()
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+}
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+
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+var exchange_text = exports.exchange_text = function exchange_text(text, options){
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+    options = options || {
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+        beep: false,
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+        cut: true,
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+        tailingLine: true,
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+        encoding: 'UTF8',
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+    }
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+    // 初始化打印机
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+    var init_printer_bytes = new Buffer([27, 64]);
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+    // 读取设备状态
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+    var check_state_bytes = new Buffer([29, 153]);
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+    // 返回字符 1D 99 XX FF
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+    // 其中XX的每位表示的意义
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+    // 0  0:有纸 1:缺纸
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+    // 1  0:合盖 1:开盖
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+    // 2  0:温度正常 1:机芯过热
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+    // 3  0:电量正常 1:电量低
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+    // 4  0:未打印状态 1:打印状态
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+    // 5  未定义
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+    // 6  未定义
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+    // 7  未定义
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+
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+    // 正常打印模式
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+    var init_bytes = new Buffer([27, 33, 0]);
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+    // 放大字体
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+    //<M></M>      中号字体(2倍高)
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+    //<D></D>      中号字体(2倍宽)
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+    //<B></B>      大号字体(2倍高宽)
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+    //<C></C>      居中
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+    //<CM></CM>    中号字体居中
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+    //<CD></CD>    中号字体居中
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+    //<CB></CB>    大号字体居中
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+    //<QR></QR>  二维码图片地址
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+    //<QRI></QRI>  二维码图片地址
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+    //<PCN></PCN>  公众号
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+    // var m_start_bytes       = new Buffer([27, 50, 27, 97, 0, 29, 33, 1]);
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+    // var m_end_bytes         = new Buffer([29, 33, 0]);
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+    // var b_start_bytes       = new Buffer([27, 50, 27, 97, 0, 29, 33, 17]);
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+    // var b_end_bytes         = new Buffer([29, 33, 0]);
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+    var c_start_bytes       = new Buffer([27, 97, 1]);
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+    var c_end_bytes         = new Buffer([]); // [ 27, 97, 0 ];
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+    // var d_start_bytes       = new Buffer([27, 50, 27, 97, 0, 29, 33, 16]);
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+    // var d_end_bytes         = new Buffer([29, 33, 0]);
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+    // var cm_start_bytes      = new Buffer([27, 50, 29, 33, 1, 27, 97, 1]);
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+    // var cm_end_bytes        = new Buffer([29, 33, 0]);
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+    // var cd_start_bytes      = new Buffer([27, 50, 29, 33, 16, 27, 97, 1]);
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+    // var cd_end_bytes        = new Buffer([29, 33, 0]);
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+    // var cb_start_bytes      = new Buffer([27, 50, 29, 33, 17, 27, 97, 1]);
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+    // var cb_end_bytes        = new Buffer([29, 33, 0]);
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+    var reset_bytes         = new Buffer([27, 97, 0, 29, 33, 0, 27, 50]);
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+    //针对针式调整后
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+    var m_start_bytes       = new Buffer([27, 33, 16, 28, 33, 8]);
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+    var m_end_bytes         = new Buffer([27, 33, 0, 28, 33, 0]);
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+    var b_start_bytes       = new Buffer([27, 33, 48, 28, 33, 12]);
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+    var b_end_bytes         = new Buffer([27, 33, 0, 28, 33, 0]);
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+    var cm_start_bytes      = new Buffer([27, 97, 1, 27, 33, 16, 28, 33, 8]);
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+    var cm_end_bytes        = new Buffer([27, 33, 0, 28, 33, 0]);
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+    var cb_start_bytes      = new Buffer([27, 97, 1, 27, 33, 48, 28, 33, 12]);
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+    var cb_end_bytes        = new Buffer([27, 33, 0, 28, 33, 0]);
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+    var cd_start_bytes      = new Buffer([27, 97, 1, 27, 33, 32, 28, 33, 4]);
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+    var cd_end_bytes        = new Buffer([27, 33, 0, 28, 33, 0]);
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+    var d_start_bytes       = new Buffer([27, 33, 32, 28, 33, 4]);
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+    var d_end_bytes         = new Buffer([27, 33, 0, 28, 33, 0]);
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+
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+    // 居中
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+    var align_center_bytes  = new Buffer([27, 97, 1]);
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+    var align_left_bytes    = new Buffer([27, 97, 0]);
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+    // 设置行间距 默认值为8即1mm
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+    var default_space_bytes = new Buffer([27, 50]);
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+    var none_space_bytes    = new Buffer([27, 51, 0]);
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+    var b_space_bytes       = new Buffer([27, 51, 120]);
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+    // 切纸
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+    var cut_bytes           = new Buffer([27, 105]);
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+    // 弹钱箱
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+    var moneybox_bytes      = new Buffer([27, 112, 7]);
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+    // 蜂鸣 { 27, 66, 次数, 时长 * 50ms }
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+    var beep_bytes          = new Buffer([ 27, 66, 3, 2 ])
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+
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+    var bytes = new BufferHelper();
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+    bytes.concat(init_printer_bytes);
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+    bytes.concat(default_space_bytes);
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+    var temp = "";
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+    for (var i = 0; i < text.length; i++)
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+    {
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+        var ch = text[i];
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+        var index;
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+        if (ch == '<')
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+        {
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+            bytes.concat(iconv.encode(temp, options.encoding));
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+            temp = "";
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+            if (text.substring(i, i+3) == "<M>")
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+            {
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+                bytes.concat(m_start_bytes); i += 2;
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+            }
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+            else if (text.substring(i, i+4) == "</M>")
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+            {
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+                bytes.concat(m_end_bytes); i += 3;
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+            }
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+            else if (text.substring(i, i+3) == "<B>")
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+            {
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+                bytes.concat(b_start_bytes); i += 2;
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+            }
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+            else if (text.substring(i, i+4) == "</B>")
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+            {
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+                bytes.concat(b_end_bytes); i += 3;
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+            }
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+            else if (text.substring(i, i+3) == "<D>")
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+            {
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+                bytes.concat(d_start_bytes); i += 2;
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+            }
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+            else if (text.substring(i, i+4) == "</D>")
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+            {
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+                bytes.concat(d_end_bytes); i += 3;
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+            }
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+            else if (text.substring(i, i+3) == "<C>")
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+            {
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+                bytes.concat(c_start_bytes); i += 2;
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+            }
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+            else if (text.substring(i, i+4) == "</C>")
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+            {
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+                bytes.concat(c_end_bytes); i += 3;
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+            }
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+            else if (text.substring(i, i+4) == "<CM>")
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+            {
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+                bytes.concat(cm_start_bytes); i += 3;
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+            }
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+            else if (text.substring(i, i+5) == "</CM>")
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+            {
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+                bytes.concat(cm_end_bytes); i += 4;
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+            }
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+            else if (text.substring(i, i+4) == "<CD>")
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+            {
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+                bytes.concat(cd_start_bytes); i += 3;
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+            }
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+            else if (text.substring(i, i+5) == "</CD>")
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+            {
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+                bytes.concat(cd_end_bytes); i += 4;
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+            }
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+            else if (text.substring(i, i+4) == "<CB>")
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+            {
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+                bytes.concat(cb_start_bytes); i += 3;
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+            }
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+            else if (text.substring(i, i+5) == "</CB>")
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+            {
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+                bytes.concat(cb_end_bytes); i += 4;
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+            }
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+            else if (text.substring(i, i+4) == "<QR>")
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+            {
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+                index = text.indexOf("</QR>", i + 4);
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+                if (index != -1)
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+                {
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+                    var url = text.substring(i + 4, index);
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+                    bytes.concat(align_center_bytes);
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+                    bytes.concat(none_space_bytes);
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+                    bytes.concat(change_image_url_to_bytes(url));
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+                    bytes.concat(default_space_bytes);
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+                    bytes.concat(align_left_bytes);
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+                    i = index + 4;
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+                }
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+                else
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+                {
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+                    temp = temp + ch;
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+                }
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+            }
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+            else if (text.substring(i, i+5) == "<QRI>")
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+            {
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+                index = text.indexOf("</QRI>", i + 5);
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+                if (index != -1)
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+                {
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+                    var url = text.substring(i + 5, index);
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+                    bytes.concat(align_center_bytes);
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+                    bytes.concat(none_space_bytes);
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+                    bytes.concat(change_image_url_to_bytes(url));
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+                    bytes.concat(default_space_bytes);
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+                    bytes.concat(align_left_bytes);
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+                    i = index + 5;
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+                }
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+                else
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+                {
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+                    temp = temp + ch;
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+                }
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+            }
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+            else if (text.substring(i, i+5) == "<PCN>")
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+            {
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+                index = text.indexOf("</PCN>", i + 5);
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+                if (index != -1)
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+                {
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+                    var url = "http://open.weixin.qq.com/qr/code/?username=" + text.substring(i + 5, index);
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+                    bytes.concat(align_center_bytes);
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+                    bytes.concat(none_space_bytes);
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+                    bytes.concat(change_image_url_to_bytes(url));
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+                    bytes.concat(default_space_bytes);
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+                    bytes.concat(align_left_bytes);
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+                    i = index + 5;
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+                }
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+                else
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+                {
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+                    temp = temp + ch;
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+                }
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+            }
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+        }
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+        else if(ch == "\n"){
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+            temp = temp + ch;
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+            bytes.concat(iconv.encode(temp, options.encoding));
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+            bytes.concat(reset_bytes);
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+            temp = "";
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+        }
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+        else
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+        {
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+            temp = temp + ch;
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+        }
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+    }
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+    if (temp.length > 0)
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+    {
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+        bytes.concat(iconv.encode(temp, options.encoding));
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+    }
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+    var line_bytes = new Buffer([10, 10, 10, 10, 10])
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+    if (options.tailingLine){
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+        bytes.concat(line_bytes);
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+    }
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+    if (options.cut){
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+        bytes.concat(cut_bytes);
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+    }
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+    if (options.beep){
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+        bytes.concat(beep_bytes)
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+    }
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+    return bytes.toBuffer();
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+}
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+
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+var change_image_url_to_bytes = exports.change_image_url_to_bytes = function change_image_url_to_bytes(url, options){
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+    options = options||{
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+        encoding: 'UTF8'
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+    };
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+    var buffer = new Buffer(iconv.encode(url, options.encoding));
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+
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+    // var buffer = new Buffer(0);
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+    // var sync = true;
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+    // Jimp.read(url, function (err, img) {
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+    //     if(err) {
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+    //         console.error(err.message)
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+    //     }else{
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+    //         img.resize(250, 250).quality(60).greyscale();
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+    //         buffer = exchange_image(img, 130);
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+    //     }
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+    //     sync = false
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+    // });
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+    // while(sync){ Deasync.sleep(100)}
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+    return buffer;
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+}
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+
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+// var download_image = exports.download_image = function download_image(url, path){
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+//     try{
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+//         request(url).pipe(fs.createWriteStream(path));
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+//         return true
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+//     }catch(e){
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+//         return false
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+//     }
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+// }
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+
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+// var exchange_image = exports.exchange_image = function exchange_image(img, threshold){
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+//     var hex;
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+//     var nl = img.bitmap.width % 256;
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+//     var nh = parseInt(img.bitmap.width / 256);
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+//     var bytes = new BufferHelper();
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+//     // data
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+//     var data = new Buffer([0, 0, 0]);
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+//     var line = new Buffer([10]);
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+//     for (var i = 0; i < parseInt(img.bitmap.height / 24) + 1; i++)
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+//     {
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+//         // ESC * m nL nH 点阵图
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+//         var header = new Buffer([27, 42, 33, nl, nh]);
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+//         bytes.concat(header);
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+//         for (var j = 0; j < img.bitmap.width; j++)
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+//         {
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+//             data[0] = data[1] = data[2] = 0; // Clear to Zero.
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+//             for (var k = 0; k < 24; k++)
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+//             {
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+//                 if (((i * 24) + k) < img.bitmap.height)   // if within the BMP size
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+//                 {
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+//                     hex = img.getPixelColor(j, (i * 24) + k);
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+//                     if (Jimp.intToRGBA(hex).r <= threshold)
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+//                     {
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+//                         data[parseInt(k / 8)] += (128 >> (k % 8));
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+//                     }
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+//                 }
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+//             }
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+//             var dit = new Buffer([data[0], data[1], data[2]])
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+//             bytes.concat(dit);
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+//         }
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+//         bytes.concat(line);
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+//     } // data
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+//     return bytes.toBuffer();
311
+// }

+ 45
- 0
package-lock.json Bestand weergeven

@@ -0,0 +1,45 @@
1
+{
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+  "name": "escpos-printer-toolkit",
3
+  "version": "1.0.6",
4
+  "lockfileVersion": 1,
5
+  "requires": true,
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+  "dependencies": {
7
+    "base64-js": {
8
+      "version": "1.2.1",
9
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.2.1.tgz",
10
+      "integrity": "sha512-dwVUVIXsBZXwTuwnXI9RK8sBmgq09NDHzyR9SAph9eqk76gKK2JSQmZARC2zRC81JC2QTtxD0ARU5qTS25gIGw=="
11
+    },
12
+    "buffer": {
13
+      "version": "5.0.7",
14
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.0.7.tgz",
15
+      "integrity": "sha512-NeeHXWh5pCbPQCt2/6rLvXqapZfVsqw/YgRgaHpT3H9Uzgs+S0lSg5SQzouIuDvcmlQRqBe8hOO2scKCu3cxrg==",
16
+      "requires": {
17
+        "base64-js": "1.2.1",
18
+        "ieee754": "1.1.8"
19
+      }
20
+    },
21
+    "emitter-component": {
22
+      "version": "1.1.1",
23
+      "resolved": "https://registry.npmjs.org/emitter-component/-/emitter-component-1.1.1.tgz",
24
+      "integrity": "sha1-Bl4tvtaVm/RwZ57avq95gdEAOrY="
25
+    },
26
+    "iconv-lite": {
27
+      "version": "0.4.19",
28
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.19.tgz",
29
+      "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ=="
30
+    },
31
+    "ieee754": {
32
+      "version": "1.1.8",
33
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.8.tgz",
34
+      "integrity": "sha1-vjPUCsEO8ZJnAfbwii2G+/0a0+Q="
35
+    },
36
+    "stream": {
37
+      "version": "0.0.2",
38
+      "resolved": "https://registry.npmjs.org/stream/-/stream-0.0.2.tgz",
39
+      "integrity": "sha1-f1Nj8Ff2WSxVlfALyAon9c7B8O8=",
40
+      "requires": {
41
+        "emitter-component": "1.1.1"
42
+      }
43
+    }
44
+  }
45
+}

+ 28
- 0
package.json Bestand weergeven

@@ -0,0 +1,28 @@
1
+{
2
+  "name": "escpos-printer-toolkit",
3
+  "version": "1.0.8",
4
+  "description": "点单宝打印机指令定义",
5
+  "main": "index.js",
6
+  "scripts": {
7
+    "test": "echo \"Error: no test specified\" && exit 1"
8
+  },
9
+  "repository": {
10
+    "type": "git",
11
+    "url": "git+ssh://git@github.com/wanxsb/escpos-printer-toolkit.git"
12
+  },
13
+  "keywords": [
14
+    "printer",
15
+    "esc/pos"
16
+  ],
17
+  "author": "shenzhen candongli corp.",
18
+  "license": "ISC",
19
+  "bugs": {
20
+    "url": "https://github.com/wanxsb/escpos-printer-toolkit/issues"
21
+  },
22
+  "homepage": "https://github.com/wanxsb/escpos-printer-toolkit#readme",
23
+  "dependencies": {
24
+    "buffer": "^5.0.7",
25
+    "iconv-lite": "^0.4.19",
26
+    "stream": "0.0.2"
27
+  }
28
+}

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