Regex issue with AngularJS ng-pattern

Question

I'm facing an issue with a regex using Angular JS ng-pattern. I wrote the following regex for input validation that rejects all input containing newlines, tabs and carriage return:

\A(.*)[^\t\r\n]\z

I tested using Rubular and it works. But then when I put in the ng-pattern of my .aspx the same expression with the bounds /myregex/ (that is: /\A(.*)[^\t\r\n]\z/ ) and, obviously I specify the trigger condition "...$error.pattern", it doesn't work, namely it always considers the input as wrong. Edit: in my regex after "A(." there is also a *

Avinash Raj · Accepted Answer · 2015-01-23 14:46:29Z

1

Javascript won't support \A (start), \z (end) anchors. So i suggest you to replace them with ^ and $

^(.*)[^\t\r\n]$

edited Jan 23, 2015 at 14:46

answered Jan 23, 2015 at 11:34

Avinash Raj

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5 Comments

OuterSpace Over a year ago

unfortunately I cannot use ^ and $ as my regex works also on multiple lines by checking for unwanted "newline" characters

Avinash Raj Over a year ago

so you want to match the lines which have no newline chars?

OuterSpace Over a year ago

I want to match lines without newlines, tab and carriage return. I tested you suggestions but didn't work.

OuterSpace Over a year ago

I finally solved it by using ^ and $ as start of string and end of string delimiters. So the final regex that works for Javascript is: ^(.*)[^\t\r\n]$

Avinash Raj Over a year ago

@OuterSpace thats what i said at first . See stackoverflow.com/posts/28109026/revisions

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