/usr/lib/nodejs/wide-align/align.js is in node-wide-align 1.1.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | 'use strict'
var stringWidth = require('string-width')
exports.center = alignCenter
exports.left = alignLeft
exports.right = alignRight
// lodash's way of generating pad characters.
function createPadding (width) {
var result = ''
var string = ' '
var n = width
do {
if (n % 2) {
result += string;
}
n = Math.floor(n / 2);
string += string;
} while (n);
return result;
}
function alignLeft (str, width) {
var trimmed = str.trimRight()
if (trimmed.length === 0 && str.length >= width) return str
var padding = ''
var strWidth = stringWidth(trimmed)
if (strWidth < width) {
padding = createPadding(width - strWidth)
}
return trimmed + padding
}
function alignRight (str, width) {
var trimmed = str.trimLeft()
if (trimmed.length === 0 && str.length >= width) return str
var padding = ''
var strWidth = stringWidth(trimmed)
if (strWidth < width) {
padding = createPadding(width - strWidth)
}
return padding + trimmed
}
function alignCenter (str, width) {
var trimmed = str.trim()
if (trimmed.length === 0 && str.length >= width) return str
var padLeft = ''
var padRight = ''
var strWidth = stringWidth(trimmed)
if (strWidth < width) {
var padLeftBy = parseInt((width - strWidth) / 2, 10)
padLeft = createPadding(padLeftBy)
padRight = createPadding(width - (strWidth + padLeftBy))
}
return padLeft + trimmed + padRight
}
|