Compare .txt to a string.

2 visualizzazioni (ultimi 30 giorni)
Bob Whiley
Bob Whiley il 23 Feb 2015
Commentato: Guillaume il 23 Feb 2015
How can you compare each line of a .txt file to a string?

Risposta accettata

Joseph Cheng
Joseph Cheng il 23 Feb 2015
you can use the function strcmp(). which will compare two strings.
to expand a bit more you can look up the function fgetl() which has the example
fid=fopen('fgetl.m');
while 1
tline = fgetl(fid);
if ~ischar(tline), break, end
disp(tline)
end
fclose(fid);
and then using strcmp() you'd insert in the for-loop
same = strcmp(tline,'comparisonstrings');
i'll leave it to you to figure out how you want to save/store the results.
  2 Commenti
Bob Whiley
Bob Whiley il 23 Feb 2015
Could you use all instead of strcmp?
Guillaume
Guillaume il 23 Feb 2015
Not if the strings are different length (which will most likely occur). strcmp is the function to compare strings.

Accedi per commentare.

Più risposte (1)

Guillaume
Guillaume il 23 Feb 2015
filelines = strsplit(fileread('sometextfile'), '\n');
issamestring = strcmp(filelines, 'stringtomatch')
  2 Commenti
per isakson
per isakson il 23 Feb 2015
Use strtrim to avoid trailing space of the text file.
Guillaume
Guillaume il 23 Feb 2015
That's assuming you don't want to compare the spaces.

Accedi per commentare.

Categorie

Scopri di più su Characters and Strings in Help Center e File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by