Set Size File Text on Matlab

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Bakka
Bakka 2014-2-3
评论： Bakka 2014-2-4
Hi everyone, I have program that load text file using uigetfile :
[filepesan lokasi] = uigetfile({'*.txt'},'Browse file message');
this is capacity for file if text file is bigger than capacity
kapasitas=get(handles.txt_nkapaembed,'String');
kapa=str2num(kapasitas);
and codes for get text file size is
txtpesan = strcat(lokasi,filepesan);
infofile=dir(txtpesan);
file=infofile.bytes;
set(handles.txt_nukurfile,'String',num2str(file));
if (file >= kapa)
msg=strcat(num2str(kapa),{' bytes only will embed});
msgbox(msg,'warning','warn');
return
end
but in my algorithm program is that when text file is bigger than "kapasitas" size (ex. 100Kb), the text file should be "crop" until length of 100Kb.
how can I do that? need your advice, many thanks
  2 个评论
Walter Roberson
Walter Roberson 2014-2-3
You have not shown your code for reading the file.
Bakka
Bakka 2014-2-3
Hi Mr. Walter, I put codes for reading the files, but now it will show if size file less than capacity, here is the code after return
set(handles.txt_lokasipesan, 'String', txtpesan);
bacapesan=textread(txtpesan,'%s','delimiter','\n','bufsize', 3000000);
set(handles.edt_pesanembedd,'String',bacapesan);

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Walter Roberson
Walter Roberson 2014-2-3
if (file >= kapa)
maxfilesize = 100*1024;
else
maxfilesize = inf;
end
set(handles.txt_lokasipesan, 'String', txtpesan);
fid = fopen(txtpesan, 'r');
buffer = fread(fid, maxfilesize, '*char');
fclose(fid);
bacapesan = regexp( buffer, '\n', 'split');
set(handles.edt_pesanembedd,'String',bacapesan);
  10 个评论
显示 8更早的评论
Walter Roberson
Walter Roberson 2014-2-4
Your existing code,
bacapesan=textread(txtpesan,'%s','delimiter','\n','bufsize', 3000000);
resulted in bacapesan being a cell array of strings, so your code should already be expecting that. How did you handle it before now?
Bakka
Bakka 2014-2-4
Hi Mr. Walter, finally I found the solution. but could you please check my last question about matlab compiler? it works when I run in m file, but not in exe compiler. Please help

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