aaac7fed
 liuqimichale
add
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/*!
* align-text <https://github.com/jonschlinkert/align-text>
*
* Copyright (c) 2015, Jon Schlinkert.
* Licensed under the MIT License.
*/
'use strict';
var typeOf = require('kind-of');
var repeat = require('repeat-string');
var longest = require('longest');
module.exports = function alignText(val, fn) {
var lines, type = typeOf(val);
if (type === 'array') {
lines = val;
} else if (type === 'string') {
lines = val.split(/(?:\r\n|\n)/);
} else {
throw new TypeError('align-text expects a string or array.');
}
var fnType = typeOf(fn);
var len = lines.length;
var max = longest(lines);
var res = [], i = 0;
while (len--) {
var line = String(lines[i++]);
var diff;
if (fnType === 'function') {
diff = fn(line.length, max.length, line, lines, i);
} else if (fnType === 'number') {
diff = fn;
} else {
diff = max.length - line.length;
}
if (typeOf(diff) === 'number') {
res.push(repeat(' ', diff) + line);
} else if (typeOf(diff) === 'object') {
var result = repeat(diff.character || ' ', diff.indent || 0);
res.push((diff.prefix || '') + result + line);
}
}
if (type === 'array') return res;
return res.join('\n');
};
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