What do you mean by "Regular Expressions" ? In Real time, where we will use this? Give me some real time examples in which place we can go for RegularExpressions?

Mythily

Sep 12th, 2005

While using an web application,if suppose u want to captured filed value that is alphanumeric for one iteration and numeric for another iteration,so we can't able to check/verify our result whether the field is alphanumberic/numberic,in this situation we can use regualr expression.
Example:1
str = "A222";
if(match(str,"[A-Z][0-9]")>0) # Condition Matches
{
tl_step("Field Verification",0," The String Contain AlphaNumberic        Character");
}
else if(match(str,"[0-9]")>0)
{
tl_step("Field Verification",0," The String Contain Numberic ");
}
O/P
The String contain alpha numeric Character
Example 2:
string = "2222"
Example:2
string = "22222"
if(match(str,"[A-Z][0-9]")>0)
{
tl_step("Field Verification",0," The String Contain AlphaNumberic        Character");
}
else if(match(str,"[0-9]")>0) #condition matches
{
tl_step("Field Verification",0," The String Contain Numberic ");
}
O/P
The String Contain Numberic
Another method for using regular expression is:
if(string,"![A-Z][0-9]") == E_OK)
{
statements;
}