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Reading a Text File
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Hi,
I'm a bit lost with Input/Output and text files on MATLAB. If I'm given a text file containing a list of names and telephone numbers e.g.
John Smith 415 278 9082
Gabriel Zoro 214 678 0929
How can I create a function to search for a someone's first and last name and then display the line with the phone number?
Thank you!!
2 个评论
Walter Roberson
2016-11-19
What do you know about the format of the file? Will each line always have exactly two names, separated by spaces? No "Dr", no middle names, no "Sr", no "von"?
Will each line always have exactly three portions of the phone number, separated by spaces? Does the phone number ever include '+' or '-' or '(' and ')' ?
回答(1 个)
Walter Roberson
2016-11-19
searchfor = input('Name to look for?', 's');
fid = fopen('YourFile.txt', 'r');
matches = 0;
while true
thisline = fgetl(fid);
if ~ischar(thisline)
break; %end of file
end
if isempty( strtrim(thisline) )
continue; %just whitespace on this line
end
if strncmp( lower(thisline), lower(searchfor), length(searchfor))
matches = matches + 1;
fprintf('Match: %s\n', thisline);
end
end
if matches == 0
fprintf('No matches for "%s"\n', searchfor)
end
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