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--- software:gui-designer:regex-tester [2013/07/04 09:36]
terrylau [Regex Tester] Add info and screen capture for hex testing
+++ software:gui-designer:regex-tester [2020/06/24 00:55] (current)
jarrod
@@ Line 1: / Line 1: @@
 ===== Regex Tester =====
+guiDesigner features a built in regular expression tester, but there are also great online resources for testing regular expressions such as:
+  * http://regex101.com - Great tool for testing against text data and showing highly detailed capture information.
+  * http://www.regexper.com - This site shows a handy explanation for any regex entered.
 The Regex Tester in guiDesigner can be used to test the regex pattern and ensure the correct data is captured when feedback strings come through the feedback system.
@@ Line 11: / Line 15: @@
 {{:software:gui-designer:regx_hex.png?nolink&400|}}
-To test hex data, escape the test data with an additional backslash i.e. \\x00. Then when applying the final regex, remember to remove the extra backslash.
+To test hex data, escape the regex with an additional backslash i.e. \\x00. Then when applying the final regex, remember to remove the extra backslash.\\
+Also, note that hex bytes are treated as a **single byte** in your final regex, whilst it would be treated as **4 bytes** in the tester once adding the extra backslash. So make sure to adjust your final regex to account for the size differences.

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