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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/wide-align/align.js
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Diffstat (limited to 'node_modules/wide-align/align.js')
-rw-r--r--node_modules/wide-align/align.js65
1 files changed, 65 insertions, 0 deletions
diff --git a/node_modules/wide-align/align.js b/node_modules/wide-align/align.js
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+++ b/node_modules/wide-align/align.js
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+'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
+}