cli-columns@3.1.2

PR-URL: https://github.com/npm/npm/pull/19910
Credit: @zkat
Reviewed-By: @iarna

1 files changed, 83 insertions, 0 deletions

diff --git a/node_modules/cli-columns/index.js b/node_modules/cli-columns/index.js
new file mode 100644
index 000000000..61efe981a
--- /dev/null
+++ b/node_modules/cli-columns/index.js
@@ -0,0 +1,83 @@
+'use strict';
+
+const stringWidth = require('string-width');
+const stripAnsi = require('strip-ansi');
+
+const concat = Array.prototype.concat;
+const defaults = {
+	character: ' ',
+	newline: '\n',
+	padding: 2,
+	sort: true,
+	width: 0
+};
+
+function byPlainText(a, b) {
+	const plainA = stripAnsi(a);
+	const plainB = stripAnsi(b);
+
+	if (plainA === plainB) {
+		return 0;
+	}
+
+	if (plainA > plainB) {
+		return 1;
+	}
+
+	return -1;
+}
+
+function makeArray() {
+	return [];
+}
+
+function makeList(count) {
+	return Array.apply(null, Array(count));
+}
+
+function padCell(fullWidth, character, value) {
+	const valueWidth = stringWidth(value);
+	const filler = makeList(fullWidth - valueWidth + 1);
+
+	return value + filler.join(character);
+}
+
+function toRows(rows, cell, i) {
+	rows[i % rows.length].push(cell);
+
+	return rows;
+}
+
+function toString(arr) {
+	return arr.join('');
+}
+
+function columns(values, options) {
+	values = concat.apply([], values);
+	options = Object.assign({}, defaults, options);
+
+	let cells = values
+		.filter(Boolean)
+		.map(String);
+
+	if (options.sort !== false) {
+		cells = cells.sort(byPlainText);
+	}
+
+	const termWidth = options.width || process.stdout.columns;
+	const cellWidth = Math.max.apply(null, cells.map(stringWidth)) + options.padding;
+	const columnCount = Math.floor(termWidth / cellWidth) || 1;
+	const rowCount = Math.ceil(cells.length / columnCount) || 1;
+
+	if (columnCount === 1) {
+		return cells.join(options.newline);
+	}
+
+	return cells
+		.map(padCell.bind(null, cellWidth, options.character))
+		.reduce(toRows, makeList(rowCount).map(makeArray))
+		.map(toString)
+		.join(options.newline);
+}
+
+module.exports = columns;