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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/wide-align/align.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
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Diffstat (limited to 'node_modules/wide-align/align.js')
| -rw-r--r-- | node_modules/wide-align/align.js | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/node_modules/wide-align/align.js b/node_modules/wide-align/align.js new file mode 100644 index 00000000..4f94ca4c --- /dev/null +++ b/node_modules/wide-align/align.js @@ -0,0 +1,65 @@ +'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 +} |
