Add option to ignore case when parsing words

wimpyprogrammer · wimpyprogrammer · commit 11e87ba113e1 · 2018-09-09T21:58:05.000-05:00
diff --git a/demo/index.html b/demo/index.html
@@ -63,6 +63,13 @@
 					</select>
 				</div>
 
+				<div class="checkbox">
+					<label>
+						<input type="checkbox" checked="checked" class="form-check-input js-case">
+						Case-sensitive
+					</label>
+				</div>
+
 				<div class="checkbox">
 					<label>
 						<input type="checkbox" checked="checked" class="form-check-input js-trim">
diff --git a/src/demo.ts b/src/demo.ts
@@ -6,6 +6,7 @@ const { Preserve, TrimLeadingAndTrailing } = WhitespaceHandling;
 
 const $input = document.querySelector<HTMLTextAreaElement>('.js-words');
 const $delimiter = document.querySelector<HTMLSelectElement>('.js-delimiter');
+const $caseSensitive = document.querySelector<HTMLInputElement>('.js-case');
 const $trim = document.querySelector<HTMLInputElement>('.js-trim');
 const $output = document.querySelector<HTMLTextAreaElement>('.js-output');
 
@@ -26,10 +27,15 @@ function displayPattern(pattern: string) {
 }
 
 function onClickGenerate() {
-	const words = $input.value;
+	let words = $input.value;
 	const delimiter = $delimiter.selectedOptions[0].value;
+	const isCaseSensitive = $caseSensitive.checked;
 	const isWhitespaceTrimmed = $trim.checked;
 
+	if (!isCaseSensitive) {
+		words = words.toLowerCase();
+	}
+
 	const whitespace = isWhitespaceTrimmed ? TrimLeadingAndTrailing : Preserve;
 
 	const pattern = generatePattern(words, delimiter, whitespace);
