I need to input characters from a GUI but they need to be separated by spaces. Every time a new character is added, it should be appended to the existing array.
For example:
user enters 'a', the content of array is 'a'
if user enters 'b' next, the content of array is 'a b'
Edit 1
These lines of code should be inside the pushbutton1_callback function, so whenever the user presses the button, a new character should be added to static text; separated by a space.
Edit 2
My only line of code in here is:
letter = get(handles.edit1, 'string')
Without details I can provide a conceptual solution.
Initialize the variable that holds the text to:
txt = '';
Then the callback will do:
txt = strtrim(sprintf('%s %s',txt, get(handleToTextBox,'String')));
letter = get(handles.edit1, 'string');
global txt;
txt=[txt letter];
txt=[txt ' '];
set(handles.text1, 'string', txt);
That's how I solved it.
Related
In matlab i'm coding a Ceaser Cipher, but the space shows up as a 'y' character.
How can I replace that with a space
case 4
disp('Breaking Ceaser Cipher')
cs = menu('Please Enter your Choice','Encryption','Decryption');
if cs==1
c = input('Enter the message: ','s');
sh = str2double(input('Enter shift: ','s'));
c=upper(c);
lc=length(c);
for i=1:lc
p(i)=int16(c(i))-65+sh;
end
p=mod(p,26)+97;
p=char(p);
disp( p)
end
end
output example:
Breaking Ceaser Cipher
Enter the message:
my name is jeff
Enter shift:
5
rdysfrjynxyojkk
Here we see that the encryption is correct, but the space is being replaced by 'y'. It does not replace the character 'y' when used as an input, the space bar somehow comes out as a 'y'.
I'v also tried using p2 = regexprep(c, 'y', ' ') in order to replace the 'y' string with space.Also looked into isspace function. No luck
You are halfway there:
spaces=isspace(c)
% make array of spaces
out=blanks(size(c));
% get array without spaces
c=c(~spaces);
% do stuff to c, without spaces.
p=mod(p,26)+97;
p=char(p);
% Fill p in corresponding locations
out(~spaces)=p;
I am trying to mask user's input in a datagridview column and i found this ready class Masked edit column Class that adds a 'mask edit column' option in the column types list. When i select this column type a mask field is being added in the list of column properties. I tried to do my job by adding some mask elements in this 'Mask' field, but when I run the code it didnt restrict me from adding other characters. I re-opened the 'edit columns menu' and I saw that the 'Mask' field was empty.
I want the text cell to accept 20 chars maximum and only: 1.Capital Letters(English & Greek), 2.these three chars(.,-), 3.Numbers 0-9
So as a first test i used only this mask(>????????????????????) but it didnt work as it didnt convert my characters to Uppercase and accepted more than 20 chars when i end the cell edit.
i am not sure the way to go is the Masked Text Box way. i have made many projects on vb and i used to use a loop in the textChanged event of a text box to restrict characters entry. the loop is this : (but i cant use it now in the valueChanged event cause it seems that 'value' doesn't have a selectionStart property.)
Dim charactersDisallowed As String = "!##$%^&*()+=|}{][:;?/><.,~""
Dim theText As String = txtCopies.Text
Dim Letter As String
Dim SelectionIndex As Integer = txtCopies.SelectionStart
Dim Change As Integer
For x As Integer = 0 To txtCopies.Text.Length - 1
Letter = txtCopies.Text.Substring(x, 1)
If charactersDisallowed.Contains(Letter) Then
theText = theText.Replace(Letter, String.Empty)
Change = 1
End If
Next
txtCopies.Text = theText
txtCopies.Select(SelectionIndex - Change, 0)
So,
Is a masked text cell what i need? and if yes( Why is this mask box not keeping the mask i enter? And how can i use this class to do my job?)
What can i alternately do to restrict some characters in a column's cells? (I will then convert to Uppercase on cellEndEdit)
I finally did it by removing the unwanted characters on cellvaluechanged event, which seems that is being raised when I end the cell's edit by for example hitting "Enter".
eliminate punctuation
words split when meeting new line and space, then store in array
check the text file got error or not with the function of checkSpelling.m file
sum up the total number of error in that article
no suggestion is assumed to be no error, then return -1
sum of error>20, return 1
sum of error<=20, return -1
I would like to check spelling error of certain paragraph, I face the problem to get rid of the punctuation. It may have problem to the other reason, it return me the error as below:
My data2 file is :
checkSpelling.m
function suggestion = checkSpelling(word)
h = actxserver('word.application');
h.Document.Add;
correct = h.CheckSpelling(word);
if correct
suggestion = []; %return empty if spelled correctly
else
%If incorrect and there are suggestions, return them in a cell array
if h.GetSpellingSuggestions(word).count > 0
count = h.GetSpellingSuggestions(word).count;
for i = 1:count
suggestion{i} = h.GetSpellingSuggestions(word).Item(i).get('name');
end
else
%If incorrect but there are no suggestions, return this:
suggestion = 'no suggestion';
end
end
%Quit Word to release the server
h.Quit
f19.m
for i = 1:1
data2=fopen(strcat('DATA\PRE-PROCESS_DATA\F19\',int2str(i),'.txt'),'r')
CharData = fread(data2, '*char')'; %read text file and store data in CharData
fclose(data2);
word_punctuation=regexprep(CharData,'[`~!##$%^&*()-_=+[{]}\|;:\''<,>.?/','')
word_newLine = regexp(word_punctuation, '\n', 'split')
word = regexp(word_newLine, ' ', 'split')
[sizeData b] = size(word)
suggestion = cellfun(#checkSpelling, word, 'UniformOutput', 0)
A19(i)=sum(~cellfun(#isempty,suggestion))
feature19(A19(i)>=20)=1
feature19(A19(i)<20)=-1
end
Substitute your regexprep call to
word_punctuation=regexprep(CharData,'\W','\n');
Here \W finds all non-alphanumeric characters (inclulding spaces) that get substituted with the newline.
Then
word = regexp(word_punctuation, '\n', 'split');
As you can see you don't need to split by space (see above). But you can remove the empty cells:
word(cellfun(#isempty,word)) = [];
Everything worked for me. However I have to say that you checkSpelling function is very slow. At every call it has to create an ActiveX server object, add new document, and delete the object after check is done. Consider rewriting the function to accept cell array of strings.
UPDATE
The only problem I see is removing the quote ' character (I'm, don't, etc). You can temporary substitute them with underscore (yes, it's considered alphanumeric) or any sequence of unused characters. Or you can use list of all non-alphanumeric characters to be remove in square brackets instead of \W.
UPDATE 2
Another solution to the 1st UPDATE:
word_punctuation=regexprep(CharData,'[^A-Za-z0-9''_]','\n');
I have a bunch of classes that I am iterating through and collecting which classes the student is failing in. If the student fails , I collect the name of the class in a vector called retake.
retake =[Math History Science]
I have line breaks so when the classes print in the command window it shows as:
retake=
Math
History
Science.
However, I am trying display retake in a static text box in Gui Guide so it looks like the above. Instead, the static text box is showing as:
MathHistoryScience
set(handles.text13,'String', retake) % this is what I tried
can you please show me so it prints:
Math
History
Science
It looks to me like you need to add carriage returns.
Assuming you have a cell array with strings (rather than concatenated strings using [], which will give you a single long line), you can do it as follows:
retake = {'Math', 'History', 'Science'};
rString = '';
for ii = 1:numel(retake)-1
rString = [rString sprintf('%s\n', retake{ii}];
end
rString = [rString retake{end}];
Notice the use of '' to denote strings, {} to denote a cell array, '\n' as the end-of-line character, and [a b] to do simple string concatenation.
I have a cell array like:
>>text
'Sentence1'
'Sentence2'
'Sentence3'
Whenever I use
sprintf(fid,'%s\n',text)
I get an error saying:
'Function is not defined for 'cell' inputs.'
But if I put :
sprintf(fid,'%s\n',char(text))
It works but in the file appears all the sentences mixed all together like with no sense.
Can you recommend me what to do?
Whener I put text I get:
>>text
'Title '
'Author'
'comments '
{3x1} cell
That is why I can not use text{:}.
If you issue
sprintf('%s\n', text)
you are saying "print a string with a newline. The string is this cell array". That's not correct; a cell-array is not a string.
If you issue
sprintf('%s\n', char(text))
you are saying "print a string with a newline. The string is this cell array, which I convert to character array.". The thing is, that conversion results in a single character array, and sprintf will re-use the %s\n format only for multiple inputs. Moreover, it writes that single character array by column, meaning, all characters in the first column, concatenated horizontally with all characters from the second column, concatenated with all characters from the third column, etc.
Therefore, the approprate call to sprintf is something with multiple inputs:
sprintf(fid, '%s\n', text{:})
because the cell-expansion text{:} creates a comma-separated list from all entries in the cell-array, which is exactly what sprintf/fprintf expects.
EDIT As you indicate:, you have non-char entries in text. You have to check for that. If you want to pass only the strings into fprintf, use
fprintf(fid, '%s\n', text{ cellfun('isclass', text, 'char') })
if that {3x1 cell} is again a set of strings, so you want to write all strings recursively, then just use something like this:
function textWriter
text = {...
'Title'
'Author'
'comments'
{...
'Title2'
'Author2'
'comments2'
{...
'Title3'
'Author3'
'comments3'
}
}
}
text = cell2str(text);
fprintf(fid, '%s\n', text{:});
end
function out = cell2str(c)
out = {};
for ii = c(:)'
if iscell(ii{1})
S = cell2str(ii{1});
out(end+1:end+numel(S)) = S;
else
out{end+1} = ii{1};
end
end
end