Adding mmmm dd yyyy date format (no comma). (#301)

Author: jzonthemtn

src/main/java/ai/philterd/phileas/services/filters/regex/DateFilter.java

@@ -105,6 +105,7 @@ private List<FilterPattern> buildFilterPatterns() {
         // These spans do NOT have replaceable delimiters.
         // These dates with the month names are pretty specific so they always pass validation as valid dates.
         filterPatterns.add(new FilterPattern.FilterPatternBuilder(Pattern.compile("(?i)(\\b\\d{1,2}\\D{0,3})?\\b(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|(Nov|Dec)(?:ember)?) [\\d]{0,1}, [\\d]{4}\\b"), 0.75).withFormat("MMMM dd, yyyy").withAlwaysValid(true).build());
+        filterPatterns.add(new FilterPattern.FilterPatternBuilder(Pattern.compile("(?i)(\\b\\d{1,2}\\D{0,3})?\\b(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|(Nov|Dec)(?:ember)?) [\\d]{0,1} [\\d]{4}\\b"), 0.75).withFormat("MMMM dd yyyy").withAlwaysValid(true).build());
         filterPatterns.add(new FilterPattern.FilterPatternBuilder(Pattern.compile("(?i)(\\b\\d{1,2}\\D{0,3})?\\b(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|(Nov|Dec)(?:ember)?) [\\d]{2}\\b"), 0.75).withFormat("MMMM yy").withAlwaysValid(true).build());
         filterPatterns.add(new FilterPattern.FilterPatternBuilder(Pattern.compile("(?i)(\\b\\d{1,2}\\D{0,3})?\\b(?:Jan(?:uary)?|Feb(?:ruary)?|Mar(?:ch)?|Apr(?:il)?|May|Jun(?:e)?|Jul(?:y)?|Aug(?:ust)?|Sep(?:tember)?|Oct(?:ober)?|(Nov|Dec)(?:ember)?) [\\d]{4}\\b"), 0.75).withFormat("MMMM yyyy").withAlwaysValid(true).build());
 

src/test/java/ai/philterd/phileas/filters/DateFilterTest.java

@@ -600,6 +600,24 @@ public void filterDate45() throws Exception {
 
     }
 
+    @Test
+    public void filterDate46() throws Exception {
+
+        // PHL-239: Support dates like Aug. 31, 2020
+
+        final DateFilter filter = new DateFilter(buildFilterConfiguration(), true, DateSpanValidator.getInstance());
+
+        final Filtered filtered = filter.filter(getPolicy(), "context", PIECE, "The date of March 4 1932 was fun");
+
+        showSpans(filtered.getSpans());
+
+        Assertions.assertEquals(1, filtered.getSpans().size());
+        Assertions.assertEquals(12, filtered.getSpans().get(0).getCharacterStart());
+        Assertions.assertEquals(24, filtered.getSpans().get(0).getCharacterEnd());
+        Assertions.assertEquals("March 4 1932", filtered.getSpans().get(0).getText());
+
+    }
+
     @Test
     public void filterWithCandidates1() throws Exception {