asked on

Text searching ??

Hi.

I have a listbox with some items in.
I need to create a procedure that will check all the words in the listbox, for mitiply instances.

Example: (listbox items)

Hello Everyone in here
yeah hello
This is a test

so the procedure start by extracting all words in the first sentence "Hello" then it moves though the listbox to see if it do exists other places. If the given word exist in a line i would just like it to show a message :)

Okay hope u get me.
Thanks
Dennis

Cynna

Well, I'm not quite sure if this is what you want...

Place Button1 and ListBox1 on the Form1:

Copy/Paste:
----------------

procedure TForm1.Button1Click(Sender: TObject);
var i: Integer;
What, Line: String;
begin
// What do you want to find:
What:='hello';
// Case insensitive search:
What:=LowerCase(What);
for i:=0 to ListBox1.Items.Count-1 do begin
Line:=LowerCase(ListBox1.Items.Strings[i]);
if Pos(What, Line)>0 then ShowMessage(What+' found in line #'+IntToStr(i));
end;
end;

herr_apfelschnitt

You want to see if a word is somewhere in a listbox?

function SearchListBox(textToSearchFor: string): Boolean;
var
I: Integer;
begin
Result := false;
for I := 0 to yourListBox.Items.Count - 1 do
begin
if Pos(textToSearchFor, yourListBox.Items[I]) <> 0 then
begin
Result := true; // textToSearchFor found in item I
// Put some more code here if you want
break; // If the word is found, exit the for-loop. If you want to continue searching after the first occurence is found, remove this.
end;
end;
end;

This function returns true if the text/word was found, and false if not.

herr_apfelschnitt

woops! U were first, Cynna :) I guess I have to work on my typing skills.

Cynna

:))

Dennis9

ASKER

The text to search for is the listboxs own words. It should extract every word between " " (space) and try a search and see if it exists other places in the list

Dennis9

ASKER

The text to search for is the listboxs own words. It should extract every word between " " (space) and try a search and see if it exists other places in the list

Cynna

Sorry, I still don't understand exactly what you need...

Do you want to extract every word of every line, and then search for duplicates?

Please try to be more elaborate.

Dennis9

ASKER

yup Cynna exactly, and if more than 2 dupes are found just show a message

DrDelphi

Try this, much easier:

var list:AnsiString;
begin
List:=Listbox1.items.Commatext;
while pos('hello',List)>0 do Delete(List,pos('hello',List),5);
Listbox1.Items.commatext:=List;
end;

Good luck!!

ASKER CERTIFIED SOLUTION

david-johnstone

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Dennis9

ASKER

david-johnstone -> Thanks just what i needed.

Thanks again everyone.

kretzschmar

in this case,
you should david-johnstone's accept comment as answer

CleanupPing

Dennis9:
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Lukasz Lach

Dennis9,
No comment has been added lately (18 days), so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area for this question:

RECOMMENDATION: Award points to david-johnstone http:#7131879

Please leave any comments here within 7 days.

-- Please DO NOT accept this comment as an answer ! --

Thanks,

anAKiN
EE Cleanup Volunteer