add option to not remove whitespace - fixes #9

index.js

@@ -107,7 +107,7 @@ function exec(str, cols, opts) {
 	for (var i = 0, word; (word = words[i]) !== undefined; i++) {
 		var rowLength = stringWidth(rows[rows.length - 1]);
 
-		if (rowLength) {
+		if (rowLength || word === '') {
 			rows[rows.length - 1] += ' ';
 			rowLength++;
 		}
@@ -135,7 +135,7 @@ function exec(str, cols, opts) {
 	}
 
 	pre = rows.map(function (r) {
-		return r.trim();
+		return options.trim === false ? r : r.trim();
 	}).join('\n');
 
 	for (var j = 0; j < pre.length; j++) {

readme.md

@@ -59,6 +59,13 @@ Default: `true`
 
 By default, an attempt is made to split words at spaces, ensuring that they don't extend past the configured columns. If wordWrap is `false`, each column will instead be completely filled splitting words as necessary.
 
+##### trim
+
+Type: `boolean`<br>
+Default: `true`
+
+Whitespace on all lines is removed by default. Set this option to `false` if you don't want to trim.
+
 
 ## Related
 

test.js

@@ -85,6 +85,14 @@ test('no word-wrapping', t => {
 	t.is(res2, 'The q\nuick\nbrown\nfox j\numped\nover\nthe l\nazy d\nog an\nd the\nn ran\naway\nwith\nthe u\nnicor\nn.');
 });
 
+test('no word-wrapping and no trimming', t => {
+	const res = fn(fixture3, 10, {wordWrap: false, trim: false});
+	t.is(res, '12345678\n901234567890 \n12345');
+
+	const res2 = fn(fixture, 5, {wordWrap: false, trim: false});
+	t.is(res2, 'The q\nuick \nbrown \nfox j\numped \nover \nthe l\nazy d\nog an\nd the\nn ran \naway \nwith \nthe u\nnicor\nn.');
+});
+
 // https://github.com/chalk/wrap-ansi/issues/10
 test.failing('supports fullwidth characters', t => {
 	t.is(fn('안녕하세', 4, {hard: true}), '안녕\n하세');