06/12: Regex

Regex

Example 1 :

Regex URL_REGEX = new Regex(@"url\((\""|\')?(?<path>(.*))?(\""|\')?\)", RegexOptions.Compiled);

 

Meaning(from Expresso)

1.url\(

2.(\""|\')?

3.(?<path>(.*))?

4.(\""|\')?

5.\)

 

so if a string like

url(http://search.live.com//siteowner/s/siteowner/sd.png)

with this Regex

can get

 

path=http://search.live.com//siteowner/s/siteowner/sd.png)

 

Example 3:

 

Example 2 :

 

Regex test=new Regex(“\w+”);

string text=”I am dayang”

 

will get  a word[] ={“I”, “am”, “dayang”}

 

with test regex

 

Example 3:

Regex sss=new Regex(“\b(?<word>\w+)\s+(\k<word>)\b”);

 

Meaning:

1.\b :First or last character in a word

2.(?<word>\w+) :

3.\s+ : while space

4.(\k<word>)

5.\b

string text=”The the quick brown fox  fox jumped over the lazy dog dog.”

 

will get a result with

 

The The

fox fox

dog dog