Handle invalid escaped quotes in tags more gracefully

src/main/java/com/hubspot/jinjava/tree/parse/TokenScanner.java

@@ -68,17 +68,15 @@ private Token getNextToken() {
       }
 
       if (inBlock > 0) {
-        if (inQuote != 0) {
+        if (c == '\\') {
+          ++currPost;
+          continue;
+        } else if (inQuote != 0) {
           if (inQuote == c) {
             inQuote = 0;
-            continue;
-          } else if (c == '\\') {
-            ++currPost;
-            continue;
-          } else {
-            continue;
           }
-        } else if (inQuote == 0 && (c == '\'' || c == '"')) {
+          continue;
+        } else if (c == '\'' || c == '"') {
           inQuote = c;
           continue;
         }

src/test/java/com/hubspot/jinjava/tree/parse/TokenScannerTest.java

@@ -305,6 +305,23 @@ public void testLstripBlocks() {
     assertThat(tokens).isNotEmpty();
   }
 
+  @Test
+  public void itTreatsEscapedQuotesSameWhenNotInQuotes() {
+    List<Token> tokens = tokens("tag-with-all-escaped-quotes");
+    assertThat(tokens).hasSize(8);
+    assertThat(tokens.stream().map(Token::getType).collect(Collectors.toList()))
+      .containsExactly(
+        symbols.getNote(),
+        symbols.getFixed(),
+        symbols.getTag(),
+        symbols.getFixed(),
+        symbols.getTag(),
+        symbols.getFixed(),
+        symbols.getTag(),
+        symbols.getFixed()
+      );
+  }
+
   private List<Token> tokens(String fixture) {
     TokenScanner t = fixture(fixture);
     return Lists.newArrayList(t);

src/test/resources/parse/tokenizer/tag-with-all-escaped-quotes.jinja

@@ -0,0 +1,7 @@
+{# This print tag is invalid, but it should not cause the rest of the template to break #}
+{% print \"foo\" %}
+Start
+{% if true %}
+The dog says: "Woof!"
+{% endif %}
+End