Problem with regex

Support
1

Hello everybody

1. What is the problem? Be very detailed.

I have a validation with regex in the constraint of the form since it works correctly in the file in the online test environment (https://getodk.org/xlsform/) but being in the latest version of ODK Collect 1.27.1 it does not work .

The conditions are as follows: regex (., '[A-Z]') and regex (., '[A-ZA-Z]')

2. What app or server are you using and on what device and operating system? Include version numbers.
Aggregate 1.7.3 y ODK Collect 1.27.1

3. What you have you tried to fix the problem?
NA

4. What steps can we take to reproduce the problem?
I attach the test file with the question

test.xlsx (187.5 KB)

2

Can you perhaps describe what constraint you are attempting to enforce? eg a specific string that should match vs one that should fail... FYI the ones above will check for the presence (one or more occurances) of an uppercase letter in your string.

3

FYI, you should probably be aware that there is a slightly different behavior wrt the regex() function between Collect and Enketo; documented here: https://github.com/getodk/javarosa/issues/531

Net is that you should probably include the ^ (start string) and $ (end string) delimiters in your regex expression, otherwise it'll match any substring - depending on what XForm client you use... So, for example, if you want to make sure a string contains only uppercase characters, try:

regex(., '^[A-Z]*$')

2 Likes
4

Thanks for the help, indeed they were the limiters of the regex