diff --git a/lib/meta.js b/lib/meta.js
index a08ee57..d819374 100644
--- a/lib/meta.js
+++ b/lib/meta.js
@@ -1,3 +1,3 @@
 module.exports = function (str) {
-  // TODO
+  return /\.$/.exec(str);
 }
\ No newline at end of file
diff --git a/lib/quantifier.js b/lib/quantifier.js
index a08ee57..409889a 100644
--- a/lib/quantifier.js
+++ b/lib/quantifier.js
@@ -1,3 +1,3 @@
 module.exports = function (str) {
-  // TODO
+  return /^\d+\.(jpg|jpeg)$/i.exec(str);
 }
\ No newline at end of file
diff --git a/lib/split.js b/lib/split.js
index a08ee57..90bbe42 100644
--- a/lib/split.js
+++ b/lib/split.js
@@ -1,3 +1,3 @@
 module.exports = function (str) {
-  // TODO
+  return str.split(/\s*\,\s*/);
 }
\ No newline at end of file