I am interested in searching a string (using objective-c) starting from a specific character in the middle of the string. I could split the string, but is there another way? I don't see an obvious option for that in the definition of NSString. I want to be able to search either backwards or forwards in the string starting from a defined character.
-[NSString rangeOfString:options:range:]. Use the range parameter to tell the string to only look in a sub-portion of the original string for the search string.
Related
As Oracle docs describe:
ESCAPE_REFERENCE Function converts a text string to its character reference counterparts for characters that fall outside the character set used by the current document.
However, Why does "utl_i18n.escape_reference('啊我鵝覺〇喆','zhs16cgb231280')" return "啊我鹅觉？喆"? It seems that there is some other conversions beside character reference.
(ps. NLS_NCHAR_CHARACTERSET:AL16UTF16)
We have used this option( Edit -> Find -> Find in Path) to search a string using IntelliJ. Currently, if we type to search a string, it will return the lines which contain the given string. But I want to find the lines which contain the given string and/or some pattern. Is there such a facility available in IntelliJ Idea?
Assume, We are going to search a string from the below lines
Test123456
Test12345
Sampletest12356
Search String: test*6
Expected output: Test123456
Search String: *test*6
Expected output: Test123456 , Sampletest12356
You should turn on the "Regex" checkbox and type in a proper regular expression in the search field, that's all. If I understood correctly, for your examples the correct requests would be test.*6 and .*test.*6 respectively.
I have two string array lists and I want to compare a portion of the string. I can use except method to find the differences but how to take a portion of the the string and compare?
For instance
File1:
PartA_Rev1
File2:
PartA_Rev2
I want to compare only the first portion of the string (PartA)
Thanks
Maybe I missunderstood you, but wouldnt substring work?
str1.substring(0,5).equals(str2.substring(0,5))
I copied code to map a network drive from http://www.vbforums.com/showthread.php?t=616519 to map the drive and http://cjwdev.wordpress.com/2010/05/30/delete-network-drive/ to delete the drive. I want to know what "R"c means in this code:
RemoveNetworkDrive("R"c, True)
which came from the first link and then I want to know how to simulate this notation in a variable so I can check for the first available drive and map the network drive to that letter. I would Google search it but since I don't know what "R"c means it makes it difficult.
"R"c is the Char version of "R". You use it when you want to specify a character rather than a string.
MSDN has some details here:
You can also create an array of strings from a single string by using the String.Split Method. The following example demonstrates the reverse of the previous example: it takes a shopping list and turns it into an array of shopping items. The separator in this case is an instance of the Char data type; thus it is appended with the literal type character c.
Dim shoppingList As String = "Milk,Eggs,Bread"
Dim shoppingItem(2) As String
shoppingItem = shoppingList.Split(","c)
It converts your string "R" to a char, as requested from function
Public Shared Sub RemoveNetworkDrive(ByVal DriveLetter As Char, ...)
It's the syntax for a character literal, basically - it's the equivalent of 'R' in C#, if that makes it any clearer.
My assignment in Visual Basic 2010 is to build a order form that has two text boxes, one for the name and the other for the address.
And we're suppose to use the IndexOf method on the address.
I understand that IndexOf returns the position of a character and the number of characters.
What would be the purpose of using the IndexOf method on the address in this instance?
I don't understand what I would be searching for when the user types in it's address that's going to be numbers and string characters.
I think I understand what the IndexOf method does, somewhat, but why and what would I use it to achieve?
You'd typically use IndexOf to -
See if a string contained something
If someString.IndexOf("Avenue") > - 1 Then
'do something
End If
Get the start position of a value in a string , this could then be used to extract part of the string. e.g. someString.Substring(someString.IndexOf("#"),10) would get then next ten characters starting from where the "#" character was found in your string.
Bear in mind you'll always need to handle scenarios where IndexOf will return -1 if it does not find the string your searching for, so your code will have to handle that eventuality.
Since this is a homework question, I will answer with a question or several:
How would you normally enter a full address into a text box?
How would each part of the address be distinguishable from another?
Once you figure out how this can be done, think about IndexOf again.