Regular Expresions

[AlexanderBB]

I'm trying to understand this pattern

RE.Pattern = "^[A-Z|b]?\d+\. .*:[0-5]\d$"

Is the following correct and could you tell me what \. . means ?

^ Start
[A-Z|b] Any char "A-Z" or "b"
? all before zero Or one times
\d+ Matches a single digit one or more
\. . ????
*:[0-5] Anything before a colon followed by numbers 0-5

\d Matches a single digit (Does this mean 2 digits in total after the colon)
$ End

Thanks

 

[shg]

\. means a period

. means any character except newline

.* means 0 or more of those

So \..* means a period followed by zero or more anything-but-newline characters

 

[AlexanderBB]

Thanks. Is the space between the two "." significant ?

 

[shg]

Yes; it means a space character.

 

[AlexanderBB]

Thanks

 

[shg]

You're welcome.