move parsing of url with targets to misc.js

1 files changed, 22 insertions, 0 deletions

diff --git a/common/misc.js b/common/misc.js
index 5754bd0..0a3a425 100644
--- a/common/misc.js
+++ b/common/misc.js
@@ -41,6 +41,27 @@ function url_item(url)
     return match[1];
 }
 
+/*
+ * Assume a url like: https://example.com/green?illuminati=confirmed#tinky#winky
+ * This function will make it into an object like:
+ * {
+ *     "base_url" : "https://example.com/green?illuminati=confirmed",
+ *     "target" : "#tinky",
+ *     "target2" : "#winky"
+ * }
+ * In case url doesn't have 2 #'s, target2 and target can be set to undefined.
+ */
+function url_extract_target(url)
+{
+    let url_re = /^([^#]*)((#[^#]*)(#.*)?)?$/;
+    let match = url_re.exec(url);
+    return {
+	base_url : match[1],
+	target : match[3],
+	target2 : match[4]
+    };
+}
+
 /* csp rule that blocks all scripts except for those injected by us */
 function csp_rule(nonce)
 {
@@ -54,6 +75,7 @@ function csp_rule(nonce)
  * EXPORTS_START
  * EXPORT gen_unique
  * EXPORT url_item
+ * EXPORT url_extract_target
  * EXPORT csp_rule
  * EXPORTS_END
  */