Say I've got an existing constant string:
private final static String LOREM_IPSUM = "Lorem Ipsum";
Is there a way in Eclipse to quickly extract a substring of this as another constant such that I could end up with something like:
private final static String LOREM = "Lorem";
private final static String IPSUM = "Ipsum";
private final static String LOREM_IPSUM = LOREM + " " + IPSUM;
In this particular case, two refactorings (one for LOREM and one for IPSUM) would suffice.
There's a Quick Assist that you can use to pull out one bit of a quoted string. Select the text you want to pull out and hit Ctrl+1 (that's the digit for "one"). You'll see a quick assist for "Pick out selected part of String". Choose it; Eclipse will break up your string for you.
If you don't already use it, get familiar with the "Select Enclosing Element" key combination (Shift+Alt+Up). If you put the cursor in the middle of a string and hit that combination, the whole string will be selected. Select it again, and the expression containing it will be selected. You will do this dozens of times each day.
Try this sequence of steps:
Put your cursor after the m in Lorem, and press enter.
Right cursor one character.
Press enter.
Select "Lorem" and perform Refactor -> Extract Constant...
Select "Ipsum" and perform Refactor -> Extract Constant...
Related
I have Strings in the following structure:
cmd, addr, data, data, data, data, ……., \n
For example:
"write,A0001000,00000000, \n"
I have to know how many words the String has.
I know that I can go over the String and search for the number of commas, but is there more effective way to do it?
UVM provides a facility to do regexp matching using the DPI, in case you're already using that. Have a look at the functions in uvm_svcmd_dpi.svh
Verilab also provides svlib, a package containing string matching functions.
A simpler option would be to change the commas(,) to a space, then you can use $sscanf (or $fscanf to skip the intermediate string and read directly from a file), assuming each command has a maximum number of words.
int code; // returns the number of words read
string str,word[5];
code = $sscanf(str,"%s %s %s %s %s", word[0],word[1],word[2],word[3],word[4]);
You can use %h if you know a word is in hex and translate it directly to a numeric value instead of a string.
The first step is to define extremely clearly what a word actually is vis. what constitutes the start of a word and what constitutes the end of the word, once you understand this, if should become obvious how to parse the string correctly.
In Java StringTokenizer is the best way to find the count of words in a string.
String sampleString= "cmd addr data data data data...."
StringTokenizer st = new Tokenizer(sampleString);
st.countTokens();
Hope this will help you :)
In java you can use following code to count words in string
public class WordCounts{
public static void main(String []args){
String text="cmd, addr, data, data, data, data";
String trimmed = text.trim();
int words = trimmed.isEmpty() ? 0 : trimmed.split("\\s+").length;
System.out.println(words);
}
}
I load data from XML into java classes using xstream library. The texts in several tags are very long and take more than one line. Such formatting causes that I have in Java class field text with additional characters like \n\t. Is there any way to load data from XML file without these characters?
Xml tag is declared in two lines. Opening tag is in the first line, then I have very long text, and the closing tag is declared in second line.
You can use regex or the string split method.
String string = "004-034556";
String[] parts = string.split("-");
String part1 = parts[0]; // 004
String part2 = parts[1]; // 034556
Just split your string. In your case it would be
String wantedText = parts[0];
Another solution would be to put your values into a string array, loop the array, match and remove any characters you dont want.
You can see how to match and remove Here
I just started with Ruta and I would like to write a rule that will work like this:
it will try to match a word e.g. XYZ and when it hits it, it will then assign the text that comes before to the Annotator CompanyDetails.
For example :
This is a paragraph that contains the phrase we are interested in, which follows the sentence. LL, Inc. a Delaware limited liability company (XYZ).
After running the script the annotator CompanyDetails will contain the string:
LL, Inc. a Delaware limited liability company
I assume that you mean annotation of the type 'CompanyDetails' when you talk about annotator 'CompanyDetails'.
There are many (really many) different ways to solve this task. Here's one example that applies some helper rules:
DECLARE Annotation CompanyDetails (STRING context);
DECLARE Sentence, XYZ;
// just to get a running example with simple sentences
PERIOD #{-> Sentence} PERIOD;
#{-> Sentence} PERIOD;
"XYZ" -> XYZ; // should be done in a dictionary
// the actual rule
STRING s;
Sentence{-> MATCHEDTEXT(s)}->{XYZ{-> CREATE(CompanyDetails, "context" = s)};};
This example stores the string of the complete sentence in the feature. The rule matches on all sentences and stores the covered text in the variable ´s´. Then, the content of the sentence is investigated: An inlined rule tries to match on XYZ, creates an annotation of the type CompanyDetails, and assigns the value of the variable to the feature named context. I would rather store an annotation instead of a string since you could still get the string with getCoveredText(). If you just need the tokens before XYZ in the sentence, the you could do something like that (with an annotation instead of a string this time):
DECLARE Annotation CompanyDetails (Annotation context);
DECLARE Sentence, XYZ, Context;
// just to get a running example with simple sentences
PERIOD #{-> Sentence} PERIOD;
#{-> Sentence} PERIOD;
"XYZ" -> XYZ;
// the actual rule
Sentence->{ #{-> Context} SPECIAL? #XYZ{-> GATHER(CompanyDetails, "context" = 1)};};
I found out how to create the properties of the class, like this:
private m_Name as string
public property get Name() as string
Name = m_Name
end sub
public property let Name(sval as string)
m_name = sval
end sub
The user will create a document and choose some fields (Name, Birthday, Phone....) inside this document, as I can't know exactly which fields will be chosen by the user, I thought create a class would be the best option.
After I create the class like above, how may I make a loop through this class to check which fields has been chosen by the user?
Any better option for my situation, please, let me know...
If I understood you correctly, you want to know which fields (out of a number of existing fields) user used/initialized?
I see several ways to do it:
1) If your variables do not have default values and must have a non-empty/non-zero values, then you can simply check if a variable is empty or zero. If it is, it hasn't been initialized.
If m_name = "" Then MsgBox "Variable is not initialized"
2) for each field you have, create a boolean fieldName_Initialized so for each field, you would have something like this:
private m_Name as string
private m_name_Initialized as Boolean
public property get Name() as string
Name = m_Name
end sub
public property let Name(sval as string)
m_name = sval
m_name_Initialized = True
end sub
3) you could have a list and add variable names to the list as they become initialized:
Make sure to add Microsoft Scripting Runtime to your References for Dictionary to work.
Dim initialized As Dictionary
Set initialized = New Dictionary
private m_Name as string
private m_name_Initialized as Boolean
public property get Name() as string
Name = m_Name
end sub
public property let Name(sval as string)
m_name = sval
initialized.Add "m_name", True
end sub
Then, to check if the var has been initialized:
If initialized.Exists("m_name") Then
' Var is initialized
4) similar to #3, except use an array of booleans. Tie specific var to a specific index, like m_name is index 0. This way you skip the hassle of controlling variable names (adds to maintenance cause as far as I know you can't get the name of the variable)
Personally, #1 is the most simple, but may not be possible in a certain situations. If #1 does not apply, I would personally pick #2, unless someone can figure out how to get a string representation of a variable name from the variable itself, then #3 is preferred.
I guess what you need is a kind of Nullable-behaviour. Yes you can do this ins VB6 with the datatype Variant. Then you can use the function "IsEmpty()" to check if a property was already set or not.
a little code-example:
Option Explicit
Private m_Vars()
'0 : Name
'1 : Birthday
'2 : Phone
Private Sub Class_Initialize()
ReDim m_Vars(0 To 2)
End Sub
Public Property Get Name() As String
Name = m_Vars(0)
End Property
Public Property Let Name(RHS As String)
m_Vars(0) = RHS
End Property
Public Property Get Birthday() As Date
Birthday = m_Vars(1)
End Property
Public Property Let Birthday(RHS As Date)
m_Vars(1) = RHS
End Property
Public Sub DoSomething()
Dim i As Integer
For i = 0 To UBound(m_Vars)
Dim v: v = m_Vars(i)
If IsEmpty(v) Then
MsgBox "is empty"
Else
MsgBox v
End If
Next
End Sub
If I understand correctly, the user will add tags or something to something like a document (e.g. [Name]) and you want to know how to map your class members to these tags. To do this, you dont really want to loop thru the class members, but the document tags to find out what is needed. When you find a "tag", submit it to your class to fill in the blank.
Part 1 is a parser to find the tags...my VB6 is very rusty, so pseudocode for this:
Const TagStart = "[" ' "$[" is better as it is not likely to appear
Const TagStop = "]" ' "]$" " " "
' make this a loop looking for tags
i = Instr(docScript, TagStart)
j = Instr(docScript, TagStop)
thisTag = Mid(docScript, TagStart, TagEnd )
' not correct, but the idea is to get the text WITH the Start and Stop markers
' like [Name] or [Address]
' get the translation...see below
docText = MyClass.Vocab(thisTag)
' put it back
Mid(docScript, TagStart, TagEnd) = docText
It is actually better to look for each possible legal tag (ie Instr(docScript, "[Name]")) which are stored in an array but you may have to do that in 2 loops to allow that a given tag could be requested more than once.
Part 2 supply the replacement text from MyClass:
Friend Function Vocab(tag as string) As String
Dim Ret as string
Select Case tag
Case "$[NAME]$"
ret = "Name: " & m_Name
' if the caption is part of the "script" then just:
'ret = m_Name
Case "$[ADDRESS]$"
ret = "Address: " & m_Addr
' if not found, return the tag so you can add new Vocab items
' or user can fix typos like '[NMAR]'
Case Else
ret = tag
...
End Select
Return Ret
End Function
The parsing routines in Part 1 could also be a method in your class to process the document "script" which calls a private Vocab.
Edit
a fraction of a 'script' might look like this:
Customer's Name:| $[CUST_FNAME]$ $[CUST_LNAME]$ (ignore the pipe (|) it was a table cell marker)
The parser looks thru the string to find "$[", when it does, it isolates the related tag $[CUST_FNAME]$. If you have a large number, the first part (CUST) can be used as a router to send it to the correct class. Next, call the method to get the translation:
newText = Cust.Vocab(thisTag)
Cust Class just looks at the tag and returns "Bob" or whatever and the parsing loop replaces the tag with the data:
Customer's Name:| Bob $[CUST_LNAME]$
Then just continue until all the tags have been replaced.
With "just" 22 vocab items, you could create a dedicated class for it:
Vocab.Translate(tag ...) as string
Case "$[CUST_FNAME]$"
return Cust.FirstName
...or
Are you trying to work out a way to do this via a DOC object from office? The above is more of from the ground up document composition type thing. For office I'd think you just need some sort of collection of replacement text.
HTH
If the user has a form that they do something to create their document, why not use simple checkbox controls, one for each possible field? If you want to use a loop to check for selected fields make the checkboxes a control array and loop though the array. You can assign the field name to the Tag property, then if the checkbox is checked add the field to an array.
Lets assume I have the following Java code:
public String foo()
{
// returns foo()
String log = "foo() : Logging something!"
return log;
}
Can I search in Eclipse for foo() occurring only in a String literal, but not anywhere else in the code? So in the example here Eclipse should only find the third occurrance of foo(), not the first one, which is a function name and not the second one, which is a comment.
Edit: Simple Regular Expressions won't work, because they will find foo() in a line like
String temp = "literal" + foo() + "another literal"
But here foo() is a function name and not a String literal.
You can try it like this:
"[^"\n]*foo\\(\\)[^"\n]*"
You have to escape brackets, plus this regex do not match new lines or additional quotes, which prevent wrong matches.
Maybe you should use regex to find any occurence of foo() between two " ?