FM / columnify

/usr/lib/node_modules/npm/node_modules/columnify/

/usr/lib/node_modules/npm/node_modules/columnify

Name	Size	Mode	Actions
columnify.js	10180	0644	edit dl rm
index.js	9408	0644	edit dl rm
Makefile	128	0644	edit dl rm
package.json	1771	0644	edit dl rm
utils.js	4868	0644	edit dl rm
width.js	140	0644	edit dl rm

Edit: /usr/lib/node_modules/npm/node_modules/columnify/utils.js (4868B)

"use strict"

var wcwidth = require('./width')

/**
 * repeat string `str` up to total length of `len`
 *
 * @param String str string to repeat
 * @param Number len total length of output string
 */

function repeatString(str, len) {
  return Array.apply(null, {length: len + 1}).join(str).slice(0, len)
}

/**
 * Pad `str` up to total length `max` with `chr`.
 * If `str` is longer than `max`, padRight will return `str` unaltered.
 *
 * @param String str string to pad
 * @param Number max total length of output string
 * @param String chr optional. Character to pad with. default: ' '
 * @return String padded str
 */

function padRight(str, max, chr) {
  str = str != null ? str : ''
  str = String(str)
  var length = max - wcwidth(str)
  if (length <= 0) return str
  return str + repeatString(chr || ' ', length)
}

/**
 * Pad `str` up to total length `max` with `chr`.
 * If `str` is longer than `max`, padCenter will return `str` unaltered.
 *
 * @param String str string to pad
 * @param Number max total length of output string
 * @param String chr optional. Character to pad with. default: ' '
 * @return String padded str
 */

function padCenter(str, max, chr) {
  str = str != null ? str : ''
  str = String(str)
  var length = max - wcwidth(str)
  if (length <= 0) return str
  var lengthLeft = Math.floor(length/2)
  var lengthRight = length - lengthLeft
  return repeatString(chr || ' ', lengthLeft) + str + repeatString(chr || ' ', lengthRight)
}

/**
 * Pad `str` up to total length `max` with `chr`, on the left.
 * If `str` is longer than `max`, padRight will return `str` unaltered.
 *
 * @param String str string to pad
 * @param Number max total length of output string
 * @param String chr optional. Character to pad with. default: ' '
 * @return String padded str
 */

function padLeft(str, max, chr) {
  str = str != null ? str : ''
  str = String(str)
  var length = max - wcwidth(str)
  if (length <= 0) return str
  return repeatString(chr || ' ', length) + str
}

/**
 * Split a String `str` into lines of maxiumum length `max`.
 * Splits on word boundaries. Preserves existing new lines.
 *
 * @param String str string to split
 * @param Number max length of each line
 * @return Array Array containing lines.
 */

function splitIntoLines(str, max) {
  function _splitIntoLines(str, max) {
    return str.trim().split(' ').reduce(function(lines, word) {
      var line = lines[lines.length - 1]
      if (line && wcwidth(line.join(' ')) + wcwidth(word) < max) {
        lines[lines.length - 1].push(word) // add to line
      }
      else lines.push([word]) // new line
      return lines
    }, []).map(function(l) {
      return l.join(' ')
    })
  }
  return str.split('\n').map(function(str) {
    return _splitIntoLines(str, max)
  }).reduce(function(lines, line) {
    return lines.concat(line)
  }, [])
}

/**
 * Add spaces and `truncationChar` between words of
 * `str` which are longer than `max`.
 *
 * @param String str string to split
 * @param Number max length of each line
 * @param Number truncationChar character to append to split words
 * @return String
 */

function splitLongWords(str, max, truncationChar) {
  str = str.trim()
  var result = []
  var words = str.split(' ')
  var remainder = ''

var truncationWidth = wcwidth(truncationChar)

while (remainder || words.length) {
    if (remainder) {
      var word = remainder
      remainder = ''
    } else {
      var word = words.shift()
    }

if (wcwidth(word) > max) {
      // slice is based on length no wcwidth
      var i = 0
      var wwidth = 0
      var limit = max - truncationWidth
      while (i < word.length) {
        var w = wcwidth(word.charAt(i))
        if (w + wwidth > limit) {
          break
        }
        wwidth += w
        ++i
      }

remainder = word.slice(i) // get remainder
      // save remainder for next loop

word = word.slice(0, i) // grab truncated word
      word += truncationChar // add trailing … or whatever
    }
    result.push(word)
  }

return result.join(' ')
}

/**
 * Truncate `str` into total width `max`
 * If `str` is shorter than `max`,  will return `str` unaltered.
 *
 * @param String str string to truncated
 * @param Number max total wcwidth of output string
 * @return String truncated str
 */

function truncateString(str, max) {

str = str != null ? str : ''
  str = String(str)

if(max == Infinity) return str

var i = 0
  var wwidth = 0
  while (i < str.length) {
    var w = wcwidth(str.charAt(i))
    if(w + wwidth > max)
      break
    wwidth += w
    ++i
  }
  return str.slice(0, i)
}

/**
 * Exports
 */

module.exports.padRight = padRight
module.exports.padCenter = padCenter
module.exports.padLeft = padLeft
module.exports.splitIntoLines = splitIntoLines
module.exports.splitLongWords = splitLongWords
module.exports.truncateString = truncateString

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