Merge pull request #14 from mspiegel/regex-substring

Match subsequence instead of entire input sequence.

Author: stevehu

src/main/java/com/networknt/schema/PatternValidator.java

@@ -58,7 +58,7 @@ public Set<ValidationMessage> validate(JsonNode node, JsonNode rootNode, String
         if (p != null) {
             try {
                 Matcher m = p.matcher(node.asText());
-                if (!m.matches()) {
+                if (!m.find()) {
                     errors.add(buildValidationMessage(at, pattern));
                 }
             } catch (PatternSyntaxException pse) {

src/test/resources/tests/pattern.json

@@ -19,5 +19,16 @@
                 "valid": true
             }
         ]
+    },
+    {
+        "description": "pattern is not anchored",
+        "schema": {"pattern": "a+"},
+        "tests": [
+            {
+                "description": "matches a substring",
+                "data": "xxaayy",
+                "valid": true
+            }
+        ]
     }
 ]