What does the regular expression mean?

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marcushe
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Joined: Tue Apr 14, 2009 6:38 am

What does the regular expression mean?

Post by marcushe » Tue Apr 28, 2009 7:23 am

I use Ranorex Spy to view applications , my application's path is

Base:/form[@title~'xxxx\AAAA\and\BBBB']

In regular expression ,to represent a blank space , by \s or \S.
Single char \ means changing its meaning.
I don't know what dows \ mean in Ranorex path here?
Are there some diffriences between standard regular expression and Ranorex regular expression?
BTW all attributes represented in path are in Ranorex Spy, right?

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Post by Support Team » Tue Apr 28, 2009 8:57 am

Ranorex uses the standard .NET Regular Expressions (see MSDN documentation of the Regex class). There are characters like the backslash that (standing alone or in combination) have a special meaning in a regular expression (please have a look on the regular expression language elements), like you stated the "\s" denotes a white-space character.
"\A" or "\B" do not have a special meaning; the paths generated by the Ranorex Recorder or Spy should not contain backslashes unless used for escaping the backslash itself or in front of a space "\ " (this is usually not needed, but the Regex.Escape method escapes white spaces anyway). So, if the path below is really generated by one of the Ranorex tools, please submit a bug report containing the exact Ranorex version!
marcushe wrote:BTW all attributes represented in path are in Ranorex Spy
Yes, you can use all the attributes you see in the General tab of RanorexSpy in RanoreXPaths.

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Alex
Ranorex Support Team

marcushe
Posts: 112
Joined: Tue Apr 14, 2009 6:38 am

Thanks and other problem

Post by marcushe » Tue Apr 28, 2009 9:45 am

My working Environment: Win7 , Ranorex2.02

There are some problem to modify rxpath on rxrepositry.
Assume default captured path is:
Base:/form[@title='My and Application' and @class='#32770' ]

I want to fix it as
Base:/form[@title~'*My and Application' and @class='#32770' and @enabled='True']

1.
when i deleted = and add ~'* ,then return
it doesn't change!!
Then i changed it as
Base:/form[@title~' *My and Application' and @class='#32770']

2.
When i add @enabled='True' to it and execute script ,this form can't be recognized.
if i add @enabled=True and return , word 'True' will miss

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Post by Support Team » Tue Apr 28, 2009 10:07 am

ad 1) Please note that '*My and Application' is not a valid regular expression! Do not confuse regular expressions with wildcards; '*' is a quantifier in regular expressions and matches the preceding element zero or more times. Please, read the MSDN documentation of regular expressions:
http://msdn.microsoft.com/en-us/library/az24scfc.aspx

ad 2) "@enabled='true'" should work, so please just use a small first letter.

Regards,
Alex
Ranorex Support Team

marcushe
Posts: 112
Joined: Tue Apr 14, 2009 6:38 am

Thanks!!!

Post by marcushe » Tue Apr 28, 2009 10:09 am

i make a mistake.