REGEX: Allow any characters including line break

Question

I want to limit the number of characters allowed in one of the questions in my ODK Xform. The question is about the user's comment so I need the field to accept any number of characters from 0 to 100 including line breaks. Otherwise it must show the proper alert.

<bind nodeset="/widgets/Comment" type="string" constraint="regex(.,'^.{0,100}$')" />

I have the above code, but it does not allow me to have line breaks, I appreciate your help.

`.` matches everything except linebreaks. Instead of `.` use `(.|\n)` — Robin Gertenbach, Feb 29 '16 at 11:57

score 2 · Accepted Answer · answered Feb 29 '16 at 12:02

2

Use the s option to make . match any character, including newlines:

<bind nodeset="/widgets/Comment" type="string" constraint="regex(.,'^(?s).{0,100}$')" />

answered Feb 29 '16 at 12:02

Daniel Martin

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REGEX: Allow any characters including line break

1 Answers1