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utils.js

var _ = require('lodash');
var stringWidth = require('string-width');

function codeRegex(capture){
  return capture ? /\u001b\[((?:\d*;){0,5}\d*)m/g : /\u001b\[(?:\d*;){0,5}\d*m/g
}

function strlen(str){
  var code = codeRegex();
  var stripped = ("" + str).replace(code,'');
  var split = stripped.split("\n");
  return split.reduce(function (memo, s) { return (stringWidth(s) > memo) ? stringWidth(s) : memo }, 0);
}

function repeat(str,times){
  return Array(times + 1).join(str);
}

function pad(str, len, pad, dir) {
  var length = strlen(str);
  if (len + 1 >= length) {
    var padlen = len - length;
    switch (dir) {
      case 'right':
        str = repeat(pad, padlen) + str;
        break;

case 'center':
        var right = Math.ceil((padlen) / 2);
        var left = padlen - right;
        str = repeat(pad, left) + str + repeat(pad, right);
        break;

default :
        str = str + repeat(pad,padlen);
        break;
    }
  }
  return str;
}

var codeCache = {};

//https://github.com/Marak/colors.js/blob/master/lib/styles.js
addToCodeCache('bold', 1, 22);
addToCodeCache('italics', 3, 23);
addToCodeCache('underline', 4, 24);
addToCodeCache('inverse', 7, 27);
addToCodeCache('strikethrough', 9, 29);

function unwindState(state,ret){
  var lastBackgroundAdded = state.lastBackgroundAdded;
  var lastForegroundAdded = state.lastForegroundAdded;

delete state.lastBackgroundAdded;
  delete state.lastForegroundAdded;

_.forEach(state,function(value,key){
    if(value){
      ret += codeCache[key].off;
    }
  });

if(lastBackgroundAdded && (lastBackgroundAdded != '\u001b[49m')){
    ret += '\u001b[49m';
  }
  if(lastForegroundAdded && (lastForegroundAdded != '\u001b[39m')){
    ret += '\u001b[39m';
  }

return ret;
}

function rewindState(state,ret){
  var lastBackgroundAdded = state.lastBackgroundAdded;
  var lastForegroundAdded = state.lastForegroundAdded;

delete state.lastBackgroundAdded;
  delete state.lastForegroundAdded;

_.forEach(state,function(value,key){
    if(value){
      ret = codeCache[key].on + ret;
    }
  });

if(lastBackgroundAdded && (lastBackgroundAdded != '\u001b[49m')){
    ret = lastBackgroundAdded + ret;
  }
  if(lastForegroundAdded && (lastForegroundAdded != '\u001b[39m')){
    ret = lastForegroundAdded + ret;
  }

return ret;
}

function truncateWidth(str, desiredLength){
  if (str.length === strlen(str)) {
    return str.substr(0, desiredLength);
  }

while (strlen(str) > desiredLength){
    str = str.slice(0, -1);
  }

return str;
}

function truncateWidthWithAnsi(str, desiredLength){
  var code = codeRegex(true);
  var split = str.split(codeRegex());
  var splitIndex = 0;
  var retLen = 0;
  var ret = '';
  var myArray;
  var state = {};

while(retLen < desiredLength){
    myArray = code.exec(str);
    var toAdd = split[splitIndex];
    splitIndex++;
    if (retLen + strlen(toAdd) > desiredLength){
      toAdd = truncateWidth(toAdd, desiredLength - retLen);
    }
    ret += toAdd;
    retLen += strlen(toAdd);

if(retLen < desiredLength){
      if (!myArray) { break; }  // full-width chars may cause a whitespace which cannot be filled
      ret += myArray[0];
      updateState(state,myArray);
    }
  }

return unwindState(state,ret);
}

function truncate(str, desiredLength, truncateChar){
  truncateChar = truncateChar || '…';
  var lengthOfStr = strlen(str);
  if(lengthOfStr <= desiredLength){
    return str;
  }
  desiredLength -= strlen(truncateChar);

ret = truncateWidthWithAnsi(str, desiredLength);

return ret + truncateChar;
}

function defaultOptions(){
  return{
    chars: {
      'top': '─'
      , 'top-mid': '┬'
      , 'top-left': '┌'
      , 'top-right': '┐'
      , 'bottom': '─'
      , 'bottom-mid': '┴'
      , 'bottom-left': '└'
      , 'bottom-right': '┘'
      , 'left': '│'
      , 'left-mid': '├'
      , 'mid': '─'
      , 'mid-mid': '┼'
      , 'right': '│'
      , 'right-mid': '┤'
      , 'middle': '│'
    }
    , truncate: '…'
    , colWidths: []
    , rowHeights: []
    , colAligns: []
    , rowAligns: []
    , style: {
      'padding-left': 1
      , 'padding-right': 1
      , head: ['red']
      , border: ['grey']
      , compact : false
    }
    , head: []
  };
}

function multiLineWordWrap(maxLength, input){
  var output = [];
  input = input.split('\n');
  for(var i = 0; i < input.length; i++){
    output.push.apply(output,wordWrap(maxLength,input[i]));
  }
  return output;
}

module.exports = {
  strlen:strlen,
  repeat:repeat,
  pad:pad,
  truncate:truncate,
  mergeOptions:mergeOptions,
  wordWrap:multiLineWordWrap,
  colorizeLines:colorizeLines
};

System Information
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File : BlackDragon /simple/function.php

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2024-03-03 10:42:04
..	dir	-	root/root	0755	2024-03-03 10:42:04
cell.js	text/plain	11.63 KB	root/root	0644	2021-09-28 11:28:33
layout-manager.js	text/plain	6.08 KB	root/root	0644	2021-09-28 11:28:33
table.js	text/plain	1.8 KB	root/root	0644	2021-09-28 11:28:33
utils.js	text/plain	6.98 KB	root/root	0644	2021-09-28 11:28:33