How to make a code to access the internet and other programs

Question

Rainaire Hansford 2017-7-24

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https://ww2.mathworks.cn/matlabcentral/answers/350059-how-to-make-a-code-to-access-the-internet-and-other-programs

评论： Walter Roberson 2019-1-15

采纳的回答： Jon Lobo

Is there a way to make a code open the internet browser and other programs.

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Answer 1

Jon Lobo 2017-7-24

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https://ww2.mathworks.cn/matlabcentral/answers/350059-how-to-make-a-code-to-access-the-internet-and-other-programs#answer_275348

You can use system commands to do this. See system

You can also use the ! to do this.

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Walter Roberson 2018-7-6

在 MATLAB Online 中打开

NET.addAssembly('System.Speech');
obj = System.Speech.Synthesis.SpeechSynthesizer;
obj.Volume = 100;
command = strtrim( input('What is your command', 's') ); 
parts = regexp(command, '\s+', 'split');
text_to_say = 'Unrecognized command';
if isempty(parts)
  Speak(obj, text_to_say);
else
  switch lower(parts)
    case 'open'
      if length(parts) == 2
        filename = parts{2};
        if exist(filename, 'file')
          text_to_say = 'Opening file';
          Speak(obj, text_to_say);
          open(filename);
        else
          text_to_say = 'Could not find file to open it';
          Speak(obj, text_to_say);
        end
      else
        Speak(obj, text_to_say);
      end
    case 'search'
      if length(parts) == 2
        filename = parts{2};
        cmd = sprintf('cd C:\; dir /s "%s"', filename);
        text_to_say = 'Searching disk C for file';
        Speak(obj, text_to_say);
        [status, message] = system(cmd);
        if isempty(message)
          text_to_say = 'System had no response to search request';
          Speak(obj, text_to_say);
        else
          text_to_say = 'System result of search follows';
          Speak(obj, text_to_say);
          Speak(obj, message);
        end
      else
        Speak(obj, text_to_say');
      end
    otherwise
      Speak(obj, text_to_say);
  end
end

Rainaire Hansford 2018-7-10

在 MATLAB Online 中打开

Ok Walter your going to have to walk me throught this cause I have no idea what any of this means haha I ran this code but it keeps giving error:

SWITCH expression must be a scalar or a character vector.
Error in Practice (line 11)
  switch lower(parts)

Walter Roberson 2018-7-10

在 MATLAB Online 中打开

Change

switch lower(parts)

to

switch lower(parts{1})

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Answer 2

Rainaire Hansford 2018-8-4

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https://ww2.mathworks.cn/matlabcentral/answers/350059-how-to-make-a-code-to-access-the-internet-and-other-programs#answer_331615

在 MATLAB Online 中打开

ok well no error

What is your command parts
Undefined function or variable 'text_to_say'.
Error in Practice (line 45)
      Speak(obj, text_to_say);

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Rainaire Hansford 2018-9-23

在 MATLAB Online 中打开

No it is still there.

NET.addAssembly('System.Speech');
obj = System.Speech.Synthesis.SpeechSynthesizer;
obj.Volume = 100;
command = strtrim( input('What is your command ', 's') ); 
parts = regexp(command, '\s+', 'split');
if isempty(parts)
    text_to_say = 'Unrecognized command';
  Speak(obj, text_to_say);
else
  switch lower(parts{1})
    case 'open'
      if length(parts) == 2
        filename = parts{2};
        if exist(filename, 'file')
          text_to_say = 'Opening file';
          Speak(obj, text_to_say);
          open(filename);
        else
          text_to_say = 'Could not find file to open it';
          Speak(obj, text_to_say);
        end
      else
        Speak(obj, text_to_say);
      end
    case 'search'
      if length(parts) == 2
        filename = parts{2};
        cmd = sprintf('cd C:\; dir /s "%s"', filename);
        text_to_say = 'Searching disk C for file';
        Speak(obj, text_to_say);
        [status, message] = system(cmd);
        if isempty(message)
          text_to_say = 'System had no response to search request';
          Speak(obj, text_to_say);
        else
          text_to_say = 'System result of search follows';
          Speak(obj, text_to_say);
          Speak(obj, message);
        end
      else
        Speak(obj, text_to_say');
      end
    otherwise
      Speak(obj, text_to_say);
  end
end

Sorry I took so long my computer was damage and had to get a new.

Rainaire Hansford 2019-1-15

Well my chrome is in the same location. But i really dont know what im really looking at lol.

the dots before and after else i never seen them in a code before. In all the codes that we have gone over where is this suppose to fit?

Walter Roberson 2019-1-15

在 MATLAB Online 中打开

%initializations. No need to keep doing these.
chromelocation = 'C:\Program Files (x86)\Google\Chrome\Application\chrome.exe';
local_file_prefix = 'file://';
NET.addAssembly('System.Speech');
obj = System.Speech.Synthesis.SpeechSynthesizer;
obj.Volume = 100;
command = strtrim( input('What is your command ', 's') ); 
parts = regexp(command, '\s+', 'split');
if isempty(parts)
    text_to_say = 'Unrecognized command';
  Speak(obj, text_to_say);
else
  switch lower(parts{1})
    case 'open'
      if length(parts) == 2
        cmd = [];
        filename = parts{2};
        if exist(filename, 'file')
          openwhat = [local_file_prefix filename];
          text_to_say = 'Opening local file';
        else
          uri = regexp(filename, '^\w\w+:');   %with at least two characters before the :
          if isempty(uri)
              text_to_say = 'Local file not found';
              filename = [];
          else
              text_to_say = 'Opening URL with browser.';
              cmd = sprintf('%s "%s" &', chromelocation, filename);
              filename = [];
          end
        end
          Speak(obj, text_to_say);
          if ~isempty(filename)
              open(filename);
          end
          if ~isempty(cmd)
            cmd = sprintf('%s "%s" &', chromelocation, openwhat);
            system(cmd);
          end
      else
        Speak(obj, text_to_say);
      end
    case 'search'
      if length(parts) == 2
        filename = parts{2};
        cmd = sprintf('cd C:\; dir /s "%s"', filename);
        text_to_say = 'Searching disk C for file';
        Speak(obj, text_to_say);
        [status, message] = system(cmd);
        if isempty(message)
          text_to_say = 'System had no response to search request';
          Speak(obj, text_to_say);
        else
          text_to_say = 'System result of search follows';
          Speak(obj, text_to_say);
          Speak(obj, message);
        end
      else
        Speak(obj, text_to_say');
      end
    otherwise
      Speak(obj, text_to_say);
  end
end