Add support for en ("–") and em dashes ("—") as separator between version and date

CHANGELOG.md

@@ -7,6 +7,10 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+### Added
+
+- The en ("–") and em dashes ("") are also supported as separator between version and date
+
 ### Changed
 
 - Renamed rule `entry-for-every-versions` to `all-h2-contain-a-version`

heylogs-api/src/main/java/nbbrd/heylogs/Version.java

@@ -96,7 +96,9 @@ private static String parseRef(Node firstPart) throws IllegalArgumentException {
     private static LocalDate parseDate(Node secondPart) throws IllegalArgumentException {
         BasedSequence date = secondPart.getChars();
 
-        if (!date.trimStart().startsWith("-")) {
+        BasedSequence trimmedStart = date.trimStart();
+        // The unicode en dash ("–") and em dash ("—") are also accepted as separators
+        if (!trimmedStart.startsWith("-") && !trimmedStart.startsWith("–") && !trimmedStart.startsWith("—")) {
             throw new IllegalArgumentException("Missing date prefix");
         }
 

heylogs-api/src/test/java/nbbrd/heylogs/VersionTest.java

@@ -32,6 +32,14 @@ public void testParse() {
         assertThat(parse(asHeading("## [1.1.0] - 2019-02-15")))
                 .isEqualTo(Version.of("1.1.0", d20190215));
 
+        // Unicode en dash as separator
+        assertThat(parse(asHeading("## [1.1.0] – 2019-02-15")))
+                .isEqualTo(Version.of("1.1.0", d20190215));
+
+        // Unicode em dash as separator
+        assertThat(parse(asHeading("## [1.1.0] — 2019-02-15")))
+                .isEqualTo(Version.of("1.1.0", d20190215));
+
         assertThatIllegalArgumentException()
                 .isThrownBy(() -> parse(asHeading("# [1.1.0] - 2019-02-15")))
                 .withMessageContaining("Invalid heading level");