Event matching by regular expression matching on URLs.

chrome/common/extensions/api/events.json

Index: chrome/common/extensions/api/events.json
diff --git a/chrome/common/extensions/api/events.json b/chrome/common/extensions/api/events.json
index aa07fafdd4ba998f970734c1a8b8d5be3da53579..470332d7b4c7656063418ef290682a9ade72cd34 100644
--- a/chrome/common/extensions/api/events.json
+++ b/chrome/common/extensions/api/events.json
@@ -264,6 +264,11 @@
             "description": "Matches if the URL (without fragment identifier) is equal to a specified string. Port numbers are stripped from the URL if they match the default port number.",
             "optional": true
           },
+          "urlMatches": {
+            "type": "string",
+            "description": "Matches if the URL matches a specified regular expression. The regular expressions use the <a href=\"http://code.google.com/p/re2/wiki/Syntax\">RE2 syntax</a>.",

[battre, 2012/09/12 18:04:50]

nit: add "(without fragment identifier)"? Add that port numbers are stripped
from the URL if they match the default port number.

[Yoyo Zhou, 2012/09/12 20:25:56]

Done.

+            "optional": true
+          },
           "urlPrefix": {
             "type": "string",
             "description": "Matches if the URL (without fragment identifier) starts with a specified string. Port numbers are stripped from the URL if they match the default port number.",