Merge pull request #33 from petermoresi/master

Fix SEARCH function with test cases

Author: jalateras

lib/text.js

@@ -235,11 +235,13 @@ exports.RIGHT = function(text, number) {
 };
 
 exports.SEARCH = function(find_text, within_text, position) {
+  var foundAt;
   if (typeof find_text !== 'string' || typeof within_text !== 'string') {
     return error.value;
   }
   position = (position === undefined) ? 0 : position;
-  return within_text.toLowerCase().indexOf(find_text.toLowerCase(), position - 1) + 1;
+  foundAt = within_text.toLowerCase().indexOf(find_text.toLowerCase(), position - 1)+1;
+  return (foundAt === 0)?error.value:foundAt; 
 };
 
 exports.SPLIT = function (text, separator) {

test/text.js

@@ -160,6 +160,8 @@ suite('Text', function() {
     text.SEARCH('e', 'Statements', 6).should.equal(7);
     text.SEARCH('margin', 'Profit Margin').should.equal(8);
     text.SEARCH(true, 'bool').should.equal(error.value);
+    text.SEARCH("foo", "bar").should.equal(error.value);
+    text.SEARCH("ba", "bar").should.equal(1);
   });
 
   test('SPLIT', function() {
@@ -219,4 +221,4 @@ suite('Text', function() {
     text.VALUE('16:48:00').should.equal(60480);
     text.VALUE(true).should.equal(error.value);
   });
-});
+});