RegularExpressions

[Bill Yin]

I want get the Matchs
<li>[xxxxxxxxxxxxxxxxxxxxxxxxx</li>
begin:<li>[
end:</li>

 

[Justin Rogers]

Unless you need resiliency in the pattern, you are better of using IndexOf.
By resiliency, I mean the ability to handle tags that aren't formed as well
as you demonstrate below.

 

[Bill Yin]

Which faster using indexOf or RegularExpressions?

Unless you need resiliency in the pattern, you are better of using IndexOf.
By resiliency, I mean the ability to handle tags that aren't formed as well
as you demonstrate below.

--
Justin Rogers
DigiTec Web Consultants, LLC.
Blog: http://weblogs.asp.net/justin_rogers

I want get the Matchs
<li>[xxxxxxxxxxxxxxxxxxxxxxxxx</li>
begin:<li>[
end:</li>

 

[Justin Rogers]

IndexOf is going to be massively faster in most cases in searching for
start and end tags of fixed form like you show below. Actually I take
that back, you are actually going to need to use something that does
a substring match:

http://weblogs.asp.net/justin_rogers/archive/2004/03/14/89545.aspx

The above algorithm should get you going.

--
Justin Rogers
DigiTec Web Consultants, LLC.
Blog: http://weblogs.asp.net/justin_rogers

Which faster using indexOf or RegularExpressions?

Unless you need resiliency in the pattern, you are better of using IndexOf.
By resiliency, I mean the ability to handle tags that aren't formed as well
as you demonstrate below.

--
Justin Rogers
DigiTec Web Consultants, LLC.
Blog: http://weblogs.asp.net/justin_rogers

I want get the Matchs
<li>[xxxxxxxxxxxxxxxxxxxxxxxxx</li>
begin:<li>[
end:</li>

 

[Guest]

IndexOf should be, given that Regexes have the tradeoff of more advanced functionality. Try profiling it - I tried compuware devpartner community edition profiler - free, integrates into VS.NET and I must say the support is quite good aswell. Not to mention works dead well and highlights the slowest line of code in red - something I find dead useful!

Which faster using indexOf or RegularExpressions?

Unless you need resiliency in the pattern, you are better of using IndexOf.
By resiliency, I mean the ability to handle tags that aren't formed as well
as you demonstrate below.

--
Justin Rogers
DigiTec Web Consultants, LLC.
Blog: http://weblogs.asp.net/justin_rogers

I want get the Matchs
<li>[xxxxxxxxxxxxxxxxxxxxxxxxx</li>
begin:<li>[
end:</li>

 

[Niki Estner]

Regex performance depends on the complexity of the search pattern. If you
search for a fixed pattern, to compare it's speed with IndexOf, Regex'es are
faster (than IndexOf) on long strings. (personal experience)

Niki

Which faster using indexOf or RegularExpressions?

Unless you need resiliency in the pattern, you are better of using IndexOf.
By resiliency, I mean the ability to handle tags that aren't formed as well
as you demonstrate below.

--
Justin Rogers
DigiTec Web Consultants, LLC.
Blog: http://weblogs.asp.net/justin_rogers

I want get the Matchs
<li>[xxxxxxxxxxxxxxxxxxxxxxxxx</li>
begin:<li>[
end:</li>